temp/libcamera: Backport simple-pipeline buffer count patch

Which has already landed upstream. It has been observed to reduce frame drops in some situations, notably with the Pixel 3a rear camera.
2024-10-01 00:35:44 +02:00
4138 changed files with 1297216 additions and 15793 deletions
@@ -6,7 +6,7 @@

 if [ "$(id -u)" = 0 ]; then
 	set -x
-	wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+	wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 	sh ./install_pmbootstrap.sh
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
 fi
@@ -1,18 +1,24 @@
 #!/bin/sh -e
+# Description: update a list of packages
+# Options: native slow
+# https://postmarketos.org/pmb-ci

 if [ "$(id -u)" = 0 ]; then
 	set -x
 	apk add git openssh-keygen grep curl
-	wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+	wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 	sh ./install_pmbootstrap.sh
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0 $*"
 fi

 git config --global --add safe.directory "$CI_PROJECT_DIR"
 git config --global user.name "postmarketOS CI"
-# The username for the bot associated with the access token
-# e.g. project_226_bot_bfa19b84bf7f559c8ff7438a01fd29b9
-git config --global user.email "$PMAPORTS_TOKEN_BOT@noreply.gitlab.postmarketos.org"
+# pmaports
+# The email address is the username of the bot (from the GitLab group members page) @noreply.gitlab.com
+git config --global user.email "project_8065375_bot_13cf44ca4cd2c938688af6e3d500d9cb@noreply.gitlab.com"
+
+# For testing with pmaports-autoupdate-test repo
+# git config --global user.email "project_58002231_bot_be2d4e9e7aba929855726aafe12940d6@noreply.gitlab.com"

 # Configure SSH key for signing
 mkdir -p ~/.ssh
@@ -84,9 +90,9 @@ update_linux_next() {
 }

 # For testing
-#git remote add gitlab https://pmos-ci:"$PMAPORTS_PUSH_TOKEN"@gitlab.postmarketos.org/postmarketOS/pmaports-autoupdate-test.git
+#git remote add gitlab https://pmos-ci:"$PMAPORTS_PUSH_TOKEN"@gitlab.com/postmarketOS/pmaports-autoupdate-test.git

-git remote add gitlab https://pmos-ci:"$PMAPORTS_PUSH_TOKEN"@gitlab.postmarketos.org/postmarketOS/pmaports.git
+git remote add gitlab https://pmos-ci:"$PMAPORTS_PUSH_TOKEN"@gitlab.com/postmarketOS/pmaports.git
 git fetch gitlab
 git checkout --track gitlab/master

@@ -0,0 +1 @@
+lib/build_changed_aports.sh
@@ -0,0 +1 @@
+lib/build_changed_aports.sh
@@ -0,0 +1 @@
+lib/build_changed_aports.sh
@@ -11,7 +11,7 @@ if [ "$(id -u)" = 0 ]; then
 	# In .gitlab-ci.yml currently .ci/pytest.sh runs before this and
 	# already downloads and runs install_pmbootstrap.sh.
 	if ! [ -e install_pmbootstrap.sh ]; then
-		wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+		wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 		sh ./install_pmbootstrap.sh
 	fi
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
@@ -57,7 +57,7 @@ fi

 POSTMARKETOS_WALLPAPER_PATH='/usr/share/wallpapers/postmarketos.jpg'
 # The excluded devices are "grandfathered in". New devices should not be added here.
-# See https://gitlab.postmarketos.org/postmarketOS/pmaports/-/issues/2529
+# See https://gitlab.com/postmarketOS/pmaports/-/issues/2529
 if grep -qr $POSTMARKETOS_WALLPAPER_PATH \
 	--exclude-dir='device-pine64-pinetab' \
 	--exclude-dir='device-oneplus-kebab' \
@@ -87,11 +87,4 @@ if grep -qEr 'PMOS_NO_OUTPUT_REDIRECT' -- *; then
 	exit_code=1
 fi

-if grep -qEr '^deviceinfo_kernel_cmdline.*[\"\s]console=null' -- device/; then
-	echo "ERROR: Do not use console=null in the kernel command line."
-	echo "Use these params to quiet console on boot: quiet loglevel=2"
-	echo "For more information, see: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/issues/2989"
-	exit_code=1
-fi
-
 exit "$exit_code"
@@ -6,7 +6,7 @@

 if [ "$(id -u)" = 0 ]; then
 	set -x
-	wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+	wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 	sh ./install_pmbootstrap.sh
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
 fi
@@ -23,4 +23,9 @@ if __name__ == "__main__":
        print("No APKBUILDs to lint")
        sys.exit(0)

-    common.run_pmbootstrap(["-q", "lint"] + packages)
+    result = common.run_pmbootstrap(["-q", "lint"] + packages, output_return=True)
+
+    if len(result) > 0:
+        print("Linting issues found:")
+        print(result)
+        sys.exit(1)
@@ -2,7 +2,6 @@
 # Copyright 2021 Oliver Smith
 # SPDX-License-Identifier: GPL-3.0-or-later
 import sys
-import os
 import pathlib

 # Same dir
@@ -10,7 +9,6 @@ import common

 # pmbootstrap
 import add_pmbootstrap_to_import_path
-import pmb.core
 import pmb.parse
 import pmb.parse._apkbuild
 import pmb.helpers.pmaports
@@ -55,34 +53,22 @@ if __name__ == "__main__":
    # Package count sanity check
    common.get_changed_packages_sanity_check(len(packages))

+    # [ci:skip-build]: verify checksums and stop
+    verify_only = common.commit_message_has_string("[ci:skip-build]")
+    if verify_only:
+        print("WARNING: not building changed packages ([ci:skip-build])!")
+        print("verifying checksums: " + ", ".join(packages))
+        verify_checksums(packages, arch)
+        sys.exit(0)
+
    # Load context
    sys.argv = ["pmbootstrap.py", "chroot"]
    args = pmb.parse.arguments()
    context = get_context()

-    # Get set of all buildable packages for the enabled repos, for skipping unbuildable
-    # aports later. We might be given a changed aport from e.g. extra-repos/systemd when
-    # that repo is not enabled
-    buildable_pkgs = set()
-    for path in pmb.core.pkgrepo.pkgrepo_iter_package_dirs():
-        buildable_pkgs.add(os.path.basename(path))
-
-    # To store a list of packages from extra-repos/systemd for special handling later:
-    systemd_pkgs = list()
-
-    # Filter out packages that either:
-    #  1. can't be built for given arch
-    #  2. are not found in enabled repos
+    # Filter out packages that can't be built for given arch
    # (Iterate over copy of packages, because we modify it in this loop)
    for package in packages.copy():
-        if package not in buildable_pkgs:
-            print(f"{package}: not in any available repos, skipping")
-            packages.remove(package)
-            # FIXME: this should probably be more generic, if other repos are added later?
-            # This just tosses the package into the list of packages to try building later w/ systemd enabled, and assumes it'll be found there.
-            systemd_pkgs.append(package)
-            continue
-
        apkbuild_path = pmb.helpers.pmaports.find(package)
        apkbuild = pmb.parse._apkbuild.apkbuild(pathlib.Path(apkbuild_path, "APKBUILD"))

@@ -93,31 +79,8 @@ if __name__ == "__main__":
    # No packages: skip build
    if len(packages) == 0:
        print(f"no packages changed, which can be built for {arch}")
+        sys.exit(0)

-    else:
-        verify_only = common.commit_message_has_string("[ci:skip-build]")
-        if verify_only:
-            # [ci:skip-build]: verify checksums and stop
-            print("WARNING: not building changed packages ([ci:skip-build])!")
-            print("verifying checksums: " + ", ".join(packages))
-            verify_checksums(packages, arch)
-        else:
-            # Build packages
-            print(f"building in strict mode for {arch}: {', '.join(packages)}")
-            build_strict(packages, arch)
-
-    # Build packages in extra-repos/systemd
-    # FIXME: this should probably be more generic, if other repos are added later?
-    if systemd_pkgs:
-        common.run_pmbootstrap(["config", "systemd", "always"])
-
-        verify_only = common.commit_message_has_string("[ci:skip-build]")
-        if verify_only:
-            # [ci:skip-build]: verify checksums
-            print("WARNING: not building changed packages for extra-repos/systemd: ([ci:skip-build])!")
-            print("verifying checksums: " + ", ".join(systemd_pkgs))
-            verify_checksums(systemd_pkgs, arch)
-        else:
-            # Build packages
-            print(f"building in strict mode for {arch}, from extra-repos/systemd: {', '.join(systemd_pkgs)}")
-            build_strict(systemd_pkgs, arch)
+    # Build packages
+    print(f"building in strict mode for {arch}: {', '.join(packages)}")
+    build_strict(packages, arch)
@@ -5,7 +5,7 @@

 if [ "$(id -u)" = 0 ]; then
 	set -x
-	wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+	wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 	sh ./install_pmbootstrap.sh
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
 fi
@@ -36,7 +36,7 @@ def run_git(parameters, check=True, stderr=None):
 def add_upstream_git_remote():
    """ Add a remote pointing to postmarketOS/pmaports. """
    run_git(["remote", "add", "upstream",
-             "https://gitlab.postmarketos.org/postmarketOS/pmaports.git"], False)
+             "https://gitlab.com/postmarketOS/pmaports.git"], False)
    run_git(["fetch", "-q", "upstream"])


@@ -44,10 +44,14 @@ def commit_message_has_string(needle):
    return needle in run_git(["show", "-s", "--format=full", "HEAD"])


-def run_pmbootstrap(parameters):
+def run_pmbootstrap(parameters, output_return=False):
    """ Run pmbootstrap with the pmaports dir as --aports """
    cmd = ["pmbootstrap", "--aports", get_pmaports_dir()] + parameters
-    subprocess.run(cmd, universal_newlines=True, check=True)
+    stdout = subprocess.PIPE if output_return else None
+    result = subprocess.run(cmd, stdout=stdout, universal_newlines=True)
+    result.check_returncode()
+    if output_return:
+        return result.stdout


 def get_upstream_branch():
@@ -96,7 +100,7 @@ def get_changed_files(removed=True):
    commit_head = run_git(["rev-parse", "HEAD"])[:-1]
    commit_upstream = run_git(["rev-parse", branch_upstream])[:-1]
    print("commit HEAD: " + commit_head)
-    print(f"commit {branch_upstream}: {commit_upstream}")
+    print(f"commit {branch_upstream}: f{commit_upstream}")

    # Check if we are HEAD on the upstream branch
    if commit_head == commit_upstream:
@@ -8,7 +8,7 @@

 if [ "$(id -u)" = 0 ]; then
 	set -x
-	wget "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
+	wget "https://gitlab.com/postmarketOS/ci-common/-/raw/master/install_pmbootstrap.sh"
 	sh ./install_pmbootstrap.sh pytest
 	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
 fi
@@ -36,7 +36,7 @@ def test_deviceinfo():
    # Iterate over all devices
    last_exception = None
    count = 0
-    pattern = re.compile("^deviceinfo_[a-zA-Z0-9_]*=\".*\"(\\s*# .*)?$")
+    pattern = re.compile("^deviceinfo_[a-zA-Z0-9_]*=\".*\"$")

    for folder in pkgrepo_iglob("device/*/device-*"):
        device = folder.name.split("-", 1)[1]
@@ -63,8 +63,8 @@ def test_deviceinfo():
                # Check line against regex (can't use multiple lines etc.)
                if not pattern.match(line) or line.endswith("\\\""):
                    raise RuntimeError("Line looks invalid, maybe missing"
-                                       " quotes/multi-line string/malformed"
-                                       f" inline comment? {line}")
+                                       " quotes/multi-line string/comment next"
+                                       f" to line instead of above? {line}")

            # Successful deviceinfo parsing / obsolete options
            info = pmb.parse.deviceinfo(device)
@@ -28,7 +28,7 @@ def test_directories():


 # Ensure no file in pmaports are executable.
-# see https://gitlab.postmarketos.org/postmarketOS/pmaports/-/issues/593.
+# see https://gitlab.com/postmarketOS/pmaports/-/issues/593.
 def test_executable_files():
    for file in glob.iglob("[!temp]**/**/*", recursive=True):
        if os.path.isdir(file) or os.path.islink(file):
@@ -10,12 +10,7 @@ stages:
  - lint
  - build
  - autoupdate
-variables:
-  # Default of 20 is pretty small, sometimes MRs have >20 commits in them. 100
-  # seems like a reasonable balance. If this is too low, git merge-base (from ci/
-  # common.py) can fail
-  GIT_DEPTH: 100
-  
+
 # This defines the rules for when a pipeline should run.
 workflow:
  rules:
@@ -27,6 +22,19 @@ workflow:
    # Run scheduled pipeline for autoupdate or manually triggered pipeline
    - if: $CI_PIPELINE_SOURCE == "schedule" || $CI_PIPELINE_SOURCE == "web"

+# device documentation
+wiki:
+  stage: lint
+  rules:
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event" || $CI_COMMIT_REF_PROTECTED == "false"
+      changes:
+        - .ci/**/*
+        - .gitlab-ci.yml
+        - device/*/device-*/*
+  script:
+    - .ci/lib/gitlab_prepare_ci.sh
+    - .ci/wiki.sh
+
 # testcases linting
 ruff:
  stage: lint
@@ -96,6 +104,7 @@ kernel-kconfig:
      changes:
        - kconfigcheck.toml
        - device/*/linux-*/config-*
+        - main/linux-*/config-*
  script:
    - .ci/lib/gitlab_prepare_ci.sh
    - .ci/kconfig.sh
@@ -110,7 +119,7 @@ mr-settings:
    - *global_before_scripts
    - apk -q add python3
  script:
-    - wget -q "https://gitlab.postmarketos.org/postmarketOS/ci-common/-/raw/master/check_mr_settings.py"
+    - wget -q "https://gitlab.com/postmarketOS/ci-common/-/raw/master/check_mr_settings.py"
    - python3 ./check_mr_settings.py

 # build changed aports
@@ -134,18 +143,31 @@ build-x86_64:
  script:
    - .ci/build-x86_64.sh

+build-x86:
+  extends: .build
+  script:
+    - .ci/build-x86.sh
+
 build-aarch64:
  extends: .build
-  tags: [arm64]
  script:
    - .ci/build-aarch64.sh

 build-armv7:
  extends: .build
-  tags: [qemu]
  script:
    - .ci/build-armv7.sh

+build-armhf:
+  extends: .build
+  script:
+    - .ci/build-armhf.sh
+
+build-riscv64:
+  extends: .build
+  script:
+    - .ci/build-riscv64.sh
+
 auto-update:
  stage: autoupdate
  rules:
@@ -7,12 +7,14 @@ device/*/*-arrow-db410c/			@Minecrell
 device/*/*-asus-me176c/				@Minecrell
 device/*/*-ayn-odin/				@jenneron
 device/*/*-bq-paella/				@Minecrell
+device/*/*-bq-tenshi/				@fossdd
 device/*/*-google-gru/				@jenneron
 device/*/*-google-kukui/			@jenneron @binarycraft
 device/*/*-google-oak/				@jenneron @adamthiede
 device/*/*-google-trogdor/			@jenneron
 device/*/*-google-veyron/			@jenneron
 device/*/*-google-x64cros/			@jenneron @JustSoup321 @alpernebbi
+device/*/*-htc-golfu/				@Newbyte
 device/*/*-htc-m8qlul/				@Newbyte
 device/*/*-kobo-clara/				@akemnade
 device/*/*-lenovo-21bx/				@craftyguy @jane400
@@ -29,7 +31,6 @@ device/*/*-pine64-pinephonepro/			@PsychoGame
 device/*/*-pine64-rockpro64/			@PureTryOut
 device/*/*-purism-librem5/			@craftyguy @alistair23 @Newbyte
 device/*/*-qcom-msm8916/			@Minecrell @TravMurav
-device/*/*-qcom-msm8953/			@barni2000 @alikates @vipaoL @jiaxyga
 device/*/*-qcom-sdm670/				@flamingradian
 device/*/*-qcom-sdm845/				@sdm845-mainline
 device/*/*-qcom-sm6350/				@z3ntu
@@ -38,15 +39,11 @@ device/*/*-samsung-a5/				@Minecrell @minlexx
 device/*/*-samsung-e7/				@wonderfulShrineMaidenOfParadise
 device/*/*-samsung-espresso10/			@MightyM17
 device/*/*-samsung-espresso7/			@MightyM17 @antoni.aloytorrens
-device/*/*-samsung-fortuna/			@wonderfulShrineMaidenOfParadise
-device/*/*-samsung-fortunaltezt/		@bolilingmeng89006
 device/*/*-samsung-grandmax/			@wonderfulShrineMaidenOfParadise
 device/*/*-samsung-gt510/			@TravMurav
 device/*/*-samsung-gt58/			@TravMurav
-device/*/*-samsung-j3ltetw/		@bolilingmeng89006
 device/*/*-samsung-j5/				@wonderfulShrineMaidenOfParadise
 device/*/*-samsung-j5x/				@wonderfulShrineMaidenOfParadise
-device/*/*-samsung-rossa/			@wonderfulShrineMaidenOfParadise
 device/*/*-samsung-serranove/			@Minecrell
 device/*/*-tolino-shine2hd/			@akemnade
 device/*/*-videostrong-kii-pro/			@funderscore
@@ -70,6 +67,7 @@ device/*/device-google-peach-pi/		@jenneron
 device/*/device-google-peach-pit/		@jenneron
 device/*/device-google-sargo/			@flamingradian
 device/*/device-google-snow/			@jenneron
+device/*/device-huawei-plank/			@gtrxAC
 device/*/device-lg-judyln/			@Newbyte
 device/*/device-lg-judyp/			@jenneron
 device/*/device-microsoft-surface-rt/		@jenneron @jethrob
@@ -92,16 +90,15 @@ device/*/device-samsung-lt01/			@knuxify
 device/*/device-samsung-m0/			@Newbyte
 device/*/device-samsung-manta/			@jenneron @alexmrqt
 device/*/device-shift-axolotl/			@amartinz @calebccff @dylanvanassche
-device/*/device-solidrun-cubox/			@longnoserob
 device/*/firmware-google-sargo/			@flamingradian
 device/*/firmware-google-veyron-brcm/		@jenneron
-device/*/firmware-motorola-osprey/		@Minecrell
 device/*/firmware-odroid-xu4/			@Grimler
 device/*/firmware-oneplus-sdm845/		@calebccff
 device/*/firmware-powervr-gx6250/		@jenneron
 device/*/kobo-epdc-extractor/			@akemnade
 device/*/linux-google-nyan/			@jenneron
 device/*/linux-google-veyron/			@jenneron
+device/*/linux-huawei-plank/			@gtrxAC
 device/*/linux-next/				@calebccff
 device/*/linux-postmarketos-allwinner/		@Arnavion @PsychoGame
 device/*/linux-postmarketos-amlogic/		@funderscore @exkc
@@ -109,11 +106,10 @@ device/*/linux-postmarketos-exynos4/		@Newbyte @Grimler @knuxify
 device/*/linux-postmarketos-exynos5/		@jenneron @Grimler
 device/*/linux-postmarketos-grate/		@clamor-s @jenneron @jethrob
 device/*/linux-postmarketos-imx-ereader/	@akemnade
-device/*/linux-postmarketos-marvell-dove/	@longnoserob
 device/*/linux-postmarketos-mediatek-mt8173/	@jenneron @adamthiede
 device/*/linux-postmarketos-mediatek-mt8183/	@jenneron @binarycraft
 device/*/linux-postmarketos-omap/		@MightyM17 @Sicelo
-device/*/linux-postmarketos-qcom-laptop/	@craftyguy @calebccff
+device/*/linux-postmarketos-qcom-msm8939/	@Newbyte
 device/*/linux-postmarketos-qcom-msm8953/	@M0Rf30 @Ultra-azu @barni2000
 device/*/linux-postmarketos-qcom-msm8996/	@Tooniis
 device/*/linux-postmarketos-qcom-sc7180/	@jenneron
@@ -136,10 +132,10 @@ device/*/u-boot-librem5/			@craftyguy @alistair23 @Newbyte
 device/*/u-boot-pinebookpro/			@QC8086
 device/*/u-boot-pinephone/			@Arnavion @PsychoGame
 device/*/wl1251-cal/				@Danct12
-main/postmarketos*gnome*/			@pabloyoyoista @Newbyte @fossdd
+main/postmarketos*gnome*/			@pabloyoyoista @Newbyte
 main/postmarketos-initramfs/			@calebccff @craftyguy
 main/postmarketos-ui-i3wm/			@fossdd
-main/postmarketos-ui-phosh/			@pabloyoyoista @Newbyte @fossdd
+main/postmarketos-ui-phosh/			@pabloyoyoista @Newbyte
 main/postmarketos-ui-plasma-mobile/		@PureTryOut
 main/shutdown-clear-rtc-wakealarm/		@Arnavion
 main/ttyescape/					@calebccff
@@ -1,8 +1,4 @@
-# postmarketOS aports repository
-
-This repository contains the APKBUILD files for postmarketOS-specific packages, along with the required patches and scripts, if any.
-
-There are many more packages defined in the [Alpine Linux aports](https://gitlab.alpinelinux.org/alpine/aports/) on which these packages depend.
+# postmarketOS aports

 Helpful resources:
 * [How to create a package](https://wiki.postmarketos.org/wiki/Create_a_package)
@@ -0,0 +1,63 @@
+# Reference: https://postmarketos.org/channels.cfg
+[channels.cfg]
+recommended=edge
+
+[edge]
+description=Rolling release / Most devices / Occasional breakage: https://postmarketos.org/edge
+branch_pmaports=master
+branch_aports=master
+mirrordir_alpine=edge
+
+[v24.06]
+description=Latest release / Recommended for best stability
+branch_pmaports=v24.06
+branch_aports=3.20-stable
+mirrordir_alpine=v3.20
+
+[v23.12]
+description=Old release (unsupported)
+branch_pmaports=v23.12
+branch_aports=3.19-stable
+mirrordir_alpine=v3.19
+
+[v23.06]
+description=Old release (unsupported)
+branch_pmaports=v23.06
+branch_aports=3.18-stable
+mirrordir_alpine=v3.18
+
+[v22.12]
+description=Old release (unsupported)
+branch_pmaports=v22.12
+branch_aports=3.17-stable
+mirrordir_alpine=v3.17
+
+[v22.06]
+description=Old release (unsupported)
+branch_pmaports=v22.06
+branch_aports=3.16-stable
+mirrordir_alpine=v3.16
+
+[v21.12]
+description=Old release (unsupported)
+branch_pmaports=v21.12
+branch_aports=3.15-stable
+mirrordir_alpine=v3.15
+
+[v21.06]
+description=Old release (unsupported)
+branch_pmaports=v21.06
+branch_aports=3.14-stable
+mirrordir_alpine=v3.14
+
+[v21.03]
+description=Old release (unsupported)
+branch_pmaports=v21.03
+branch_aports=3.13-stable
+mirrordir_alpine=v3.13
+
+[v20.05]
+description=Old release (unsupported)
+branch_pmaports=v20.05
+branch_aports=3.12-stable
+mirrordir_alpine=v3.12
@@ -7,8 +7,8 @@ if [ -z "$(type -t arch_to_hostspec)" ]; then
 fi

 pkgname=busybox-static-aarch64
-pkgver=1.37.0
-pkgrel=12
+pkgver=1.36.1
+pkgrel=32

 _arch="aarch64"
 _mirror="http://dl-4.alpinelinux.org/alpine/"
@@ -21,16 +21,16 @@ pkgdesc="Statically linked Busybox for $_arch"
 _target="$(arch_to_hostspec $_arch)"

 source="
-	busybox-static-$pkgver-r$pkgrel-$_arch-v3.21.apk::$_mirror/v3.21/main/$_arch/busybox-static-$pkgver-r$pkgrel.apk
+	busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk::$_mirror/edge/main/$_arch/busybox-static-$pkgver-r$pkgrel.apk
 "

 package() {
 	mkdir -p "$pkgdir/usr/$_target"
 	cd "$pkgdir/usr/$_target"
-	tar -xf $srcdir/busybox-static-$pkgver-r$pkgrel-$_arch-v3.21.apk
+	tar -xf $srcdir/busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk
 	rm .PKGINFO .SIGN.*
 }

 sha512sums="
-83648d5b4e1c23d5eb6bc17bc44d702fd6f709946d0e010db0b99160c5f0ada049bd5860d9c1ae8d4c978c4c090720b2c4ecbb4504b268b254c23c95cc8e44dc  busybox-static-1.37.0-r12-aarch64-v3.21.apk
+88f07677919711bb577f60e1861f4fa555168a8703a0a3b904550e24d4045135bb0296e00464899fc6231df07db09bb11f1bc81cdf593a71a8f74dfc3333c29e  busybox-static-1.36.1-r32-aarch64-edge.apk
 "
@@ -0,0 +1,36 @@
+# Automatically generated aport, do not edit!
+# Generator: pmbootstrap aportgen busybox-static-armhf
+
+# Stub for apkbuild-lint
+if [ -z "$(type -t arch_to_hostspec)" ]; then
+	arch_to_hostspec() { :; }
+fi
+
+pkgname=busybox-static-armhf
+pkgver=1.36.1
+pkgrel=32
+
+_arch="armhf"
+_mirror="http://dl-4.alpinelinux.org/alpine/"
+
+url="http://busybox.net"
+license="GPL2"
+arch="x86_64"
+options="!check !strip"
+pkgdesc="Statically linked Busybox for $_arch"
+_target="$(arch_to_hostspec $_arch)"
+
+source="
+	busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk::$_mirror/edge/main/$_arch/busybox-static-$pkgver-r$pkgrel.apk
+"
+
+package() {
+	mkdir -p "$pkgdir/usr/$_target"
+	cd "$pkgdir/usr/$_target"
+	tar -xf $srcdir/busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk
+	rm .PKGINFO .SIGN.*
+}
+
+sha512sums="
+b0985e2f62df8f1d4e1b7a1206dc3e462df1e6b2a8aae662e57cc497ca3f474f37cc952de0d3bbaad6532d569bf540f17ad4eccc9cabfdc3c9f95f8feaf08049  busybox-static-1.36.1-r32-armhf-edge.apk
+"
@@ -7,8 +7,8 @@ if [ -z "$(type -t arch_to_hostspec)" ]; then
 fi

 pkgname=busybox-static-armv7
-pkgver=1.37.0
-pkgrel=12
+pkgver=1.36.1
+pkgrel=32

 _arch="armv7"
 _mirror="http://dl-4.alpinelinux.org/alpine/"
@@ -21,16 +21,16 @@ pkgdesc="Statically linked Busybox for $_arch"
 _target="$(arch_to_hostspec $_arch)"

 source="
-	busybox-static-$pkgver-r$pkgrel-$_arch-v3.21.apk::$_mirror/v3.21/main/$_arch/busybox-static-$pkgver-r$pkgrel.apk
+	busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk::$_mirror/edge/main/$_arch/busybox-static-$pkgver-r$pkgrel.apk
 "

 package() {
 	mkdir -p "$pkgdir/usr/$_target"
 	cd "$pkgdir/usr/$_target"
-	tar -xf $srcdir/busybox-static-$pkgver-r$pkgrel-$_arch-v3.21.apk
+	tar -xf $srcdir/busybox-static-$pkgver-r$pkgrel-$_arch-edge.apk
 	rm .PKGINFO .SIGN.*
 }

 sha512sums="
-8437f209f6862756d1c7138cfb3c518abdc801d692df03d40dcf5aafa63477e3b0544b172fd9ef40ae0bef93f94fbfdf502077db933f153eb3c2eece578680f6  busybox-static-1.37.0-r12-armv7-v3.21.apk
+f383286e58183232b41a0d299528734cb29b11e51112eab1fe513322a269a2cdf90a1341d7e329ed7cd58e2d158e3a80bc3a5290ef93de2b28aaf7a25b78bfd7  busybox-static-1.36.1-r32-armv7-edge.apk
 "
@@ -19,7 +19,7 @@
 # version is implemented as simple shell wrappers.

 pkgname=crossdirect
-pkgver=5.2.0
+pkgver=5.1.0
 pkgrel=0
 pkgdesc="Wrappers to launch native cross compilers in foreign chroots"
 url="https://postmarketOS.org"
@@ -82,7 +82,7 @@ package() {

 sha512sums="
 0f4b48f250425dc57f63955fc8b38477d23db793bee367c3fbe03c3d2a559ba576434d07518310db4cae9d90d501af4051b80038b10fae94b980e537fc9374ad  cargo.sh
-b2e602b7fc95ed403d29f0d754879d5f773c39ee33e726bb10cff17b3c088406dac84f2ca6d8ad563c64370007d98af805d6ee9cd4a06fe3d4c61c0cb90c5c0c  crossdirect.c
+500107e5aff8b34e74b54982ebcd447fc41bc8283956d506561b031a055cb30ec12698047c2604918b4b6d8560fe03db427a63dff2b83c907e8494b7f5233f29  crossdirect.c
 de2aa6929bbff5db9132673e667f4525b333d062cb1f7a0597dd924de9e5c7215a9f8e2e6263b6fb5ace06f2c4b64f4ebfd0ede9b78add07c2cd08ec8613e98f  rustc.sh
 ea9bf8db3810d03d0a7395057f3d6e57f7127d87c55deaedc171c255288f5f3cc6fbcc680a5a1b92786cf573875d5dc22521173799fe2639acc97d0715ff905b  rust-qemu-linker.sh
 "
@@ -43,8 +43,9 @@

 void exit_userfriendly()
 {
-	fprintf(stderr, "Please report this at: https://gitlab.postmarketos.org/postmarketOS/pmaports/issues\n");
-	fprintf(stderr, "As a workaround, you can compile without crossdirect with options=\"!pmb:crossdirect\".\n");
+	fprintf(stderr, "Please report this at: https://gitlab.com/postmarketOS/pmaports/issues\n");
+	fprintf(stderr, "As a workaround, you can compile without crossdirect.\n");
+	fprintf(stderr, "See 'pmbootstrap -h' for related options.\n");
 	exit(1);
 }

@@ -117,17 +118,11 @@ int main(int argc, char **argv)
 		NULL };
 	char *ldPreload = getenv("LD_PRELOAD");
 	if (ldPreload) {
-		if (strstr(ldPreload, "libfakeroot.so")) {
-			fprintf(stderr, "============================================================================================\n");
-			fprintf(stderr, "ERROR: crossdirect was called with: LD_PRELOAD=%s\n", ldPreload);
-			fprintf(stderr, "This means your package tried to run a compiler during package().\n");
-			fprintf(stderr, "This is not supported by crossdirect, and usually not a good idea.\n");
-			fprintf(stderr, "* Try to fix your APKBUILD so it does not run the compiler during package(), only in build()\n");
-			fprintf(stderr, "  * If you're using 'meson install', try to add '--no-rebuild'\n");
-			fprintf(stderr, "* If this is not possible, you can work around it by setting options=\"!pmb:crossdirect\"\n");
-			fprintf(stderr, "  (compilation will be slower!)\n");
-			fprintf(stderr, "============================================================================================\n");
-			exit(1);
+		if (strcmp(ldPreload, "/usr/lib/libfakeroot.so") == 0) {
+			env[0] = "LD_PRELOAD=/native/usr/lib/libfakeroot.so";
+		} else {
+			fprintf(stderr, "ERROR: crossdirect: can't handle LD_PRELOAD: %s\n", ldPreload);
+			exit_userfriendly();
 		}
 	}

@@ -34,7 +34,7 @@ _pkgsnap="${pkgver##*_git}"
 [ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""

 pkgname=gcc-aarch64
-pkgrel=4
+pkgrel=3
 pkgdesc="Stage2 cross-compiler for aarch64"
 url="https://gcc.gnu.org"
 arch="x86_64"
@@ -44,10 +44,9 @@ depends="binutils-aarch64 mpc1"
 makedepends_build="gcc g++ bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
 makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev musl-dev-aarch64 binutils-aarch64"
 subpackages="g++-aarch64:gpp libstdc++-dev-aarch64:libcxx_dev"
-[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-gdb gcc-doc"
+[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-gdb gcc-doc$_target"
 replaces="libstdc++ binutils"
-options="!strip !tracedeps"
-depends="$depends so:libc.musl-x86_64.so.1 so:libgcc_s.so.1 so:libgmp.so.10 so:libisl.so.23 so:libmpc.so.3 so:libmpfr.so.6 so:libstdc++.so.6 so:libz.so.1"
+options="!strip"

 : "${LANG_CXX:=true}"
 : "${LANG_D:=true}"
@@ -136,6 +135,7 @@ else
 	export CXXFLAGS_FOR_TARGET="$CXXFLAGS"
 	export LDFLAGS_FOR_TARGET="$LDFLAGS"
 	export BOOT_CFLAGS="$CFLAGS"
+	export BOOT_CXXFLAGS="$CXXFLAGS"
 	export BOOT_LDFLAGS="$LDFLAGS"
 fi

@@ -170,7 +170,7 @@ esac
 # currently on x86, x86_64 and ia64
 _libquadmath=$LANG_FORTRAN
 case "$CTARGET_ARCH" in
-x86 | x86_64 | ppc64le) ;;
+x86 | x86_64 | ppc64le)	_libquadmath=$LANG_FORTRAN ;;
 *)		_libquadmath=false ;;
 esac

@@ -218,12 +218,13 @@ if $LANG_FORTRAN; then
 	_languages="$_languages,fortran"
 fi
 if $LANG_ADA; then
-	subpackages="$subpackages gcc-gnat$_target:gnat libgnat::$CTARGET_ARCH"
+	subpackages="$subpackages gcc-gnat$_target:gnat"
 	_languages="$_languages,ada"
 	if [ "$CBUILD" = "$CTARGET" ]; then
 		makedepends_build="$makedepends_build gcc-gnat-bootstrap"
-		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH"
+		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH libgnat::$CTARGET_ARCH"
 	else
+		subpackages="$subpackages libgnat::$CTARGET_ARCH"
 		makedepends_build="$makedepends_build gcc-gnat gcc-gnat$_cross"
 	fi
 fi
@@ -233,7 +234,7 @@ fi
 makedepends="$makedepends_build $makedepends_host"

 # when using upstream releases, use this URI template
-# https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
+# https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
 #
 # right now, we are using a git snapshot. snapshots are taken from gcc.gnu.org/pub/gcc/snapshots.
 # However, since they are periodically deleted from the GCC mirrors the utilized snapshots are
@@ -243,7 +244,7 @@ makedepends="$makedepends_build $makedepends_host"
 # PLEASE submit all patches to gcc to https://gitlab.alpinelinux.org/kaniini/alpine-gcc-patches,
 # so that they can be properly tracked and easily rebased if needed.
 #source="https://dev.alpinelinux.org/archive/gcc/${_pkgbase%%.*}-$_pkgsnap/gcc-${_pkgbase%%.*}-$_pkgsnap.tar.xz
-source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
+source="https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
 	0001-posix_memalign.patch
 	0002-gcc-poison-system-directories.patch
 	0003-specs-turn-on-Wl-z-now-by-default.patch
@@ -282,7 +283,6 @@ source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
 	0036-libphobos-add-riscv64-and-loongarch64-support.patch
 	fix-arm64.patch
 	ppc64le-quadmath.patch
-	riscv64-improve-build-time.patch
 	"

 # secfixes:
@@ -290,21 +290,44 @@ source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
 #     - CVE-2023-4039

 # we build out-of-tree
-#builddir="$srcdir"/gcc-${_pkgbase%%.*}-$_pkgsnap
-builddir="$srcdir"/gcc-$_pkgbase
-_gcclibdir="/usr/lib/gcc/$CTARGET/$_pkgbase"
-_gcclibexec="/usr/libexec/gcc/$CTARGET/$_pkgbase"
+#_gccdir="$srcdir"/gcc-${_pkgbase%%.*}-$_pkgsnap
+_gccdir="$srcdir"/gcc-${_pkgbase:-$pkgver}
+_gcclibdir="/usr/lib/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+_gcclibexec="/usr/libexec/gcc/$CTARGET/${_pkgbase:-$pkgver}"

 prepare() {
-	default_prepare
-	echo $_pkgbase > gcc/BASE-VER
+	cd "$_gccdir"
+
+	_err=
+	for i in $source; do
+		case "$i" in
+		*.patch)
+			msg "Applying $i"
+			patch -p1 -i "$srcdir"/$i || _err="$_err $i"
+			;;
+		esac
+	done
+
+	if [ -n "$_err" ]; then
+		error "The following patches failed:"
+		for i in $_err; do
+			echo "  $i"
+		done
+		return 1
+	fi
+
+	echo ${_pkgbase:-$pkgver} > gcc/BASE-VER
 }

 build() {
 	local _arch_configure=
+	local _libc_configure=
 	local _bootstrap_configure=
+	local _symvers=
 	local _jit_configure=

+	cd "$_gccdir"
+
 	case "$CTARGET" in
 	aarch64-*-*-*)		_arch_configure="--with-arch=armv8-a --with-abi=lp64";;
 	armv5-*-*-*eabi)	_arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";;
@@ -328,7 +351,15 @@ build() {
 	*)	_hash_style_configure="--with-linker-hash-style=gnu" ;;
 	esac

-	export libat_cv_have_ifunc=no
+	case "$CTARGET_LIBC" in
+	musl)
+		# musl does not support libsanitizer
+		# alpine musl provides libssp_nonshared.a, so we don't need libssp either
+		_libc_configure="--disable-libssp --disable-libsanitizer"
+		_symvers="--disable-symvers"
+		export libat_cv_have_ifunc=no
+		;;
+	esac


 	case "$BOOTSTRAP" in
@@ -357,8 +388,10 @@ build() {
 	echo "  CHOST=$CHOST"
 	echo "  CTARGET=$CTARGET"
 	echo "  CTARGET_ARCH=$CTARGET_ARCH"
+	echo "  CTARGET_LIBC=$CTARGET_LIBC"
 	echo "  languages=$_languages"
 	echo "  arch_configure=$_arch_configure"
+	echo "  libc_configure=$_libc_configure"
 	echo "  cross_configure=$_cross_configure"
 	echo "  bootstrap_configure=$_bootstrap_configure"
 	echo "  hash_style_configure=$_hash_style_configure"
@@ -379,7 +412,7 @@ build() {
 		--disable-multilib
 		--disable-nls
 		--disable-werror
-		--disable-symvers
+		$_symvers
 		--enable-__cxa_atexit
 		--enable-default-pie
 		--enable-default-ssp
@@ -387,8 +420,7 @@ build() {
 		--enable-link-serialization=2
 		--enable-linker-build-id
 		$_arch_configure
-		--disable-libssp
-		--disable-libsanitizer
+		$_libc_configure
 		$_cross_configure
 		$_bootstrap_configure
 		--with-bugurl=https://gitlab.alpinelinux.org/alpine/aports/-/issues
@@ -398,7 +430,7 @@ build() {

 	mkdir -p "$_builddir"
 	cd "$_builddir"
-	"$builddir"/configure $gccconfiguration \
+	"$_gccdir"/configure $gccconfiguration \
 		--with-pkgversion="$version"

 	msg "building gcc"
@@ -414,7 +446,7 @@ build() {
 	if $LANG_JIT; then
 		mkdir -p "$_builddir"/libgccjit-build
 		cd "$_builddir"/libgccjit-build
-		"$builddir"/configure $gccconfiguration \
+		"$_gccdir"/configure $gccconfiguration \
 			--disable-bootstrap \
 			--enable-host-shared \
 			--enable-languages=jit \
@@ -429,7 +461,7 @@ package() {
 	cd "$_builddir"
 	make -j1 DESTDIR="$pkgdir" install

-	[ "$CHOST" = "$CTARGET" ] && ln -s gcc "$pkgdir"/usr/bin/cc
+	ln -s gcc "$pkgdir"/usr/bin/cc
 	ln -s ${CTARGET}-gcc "$pkgdir"/usr/bin/${CTARGET}-cc

 	if $LANG_JIT; then
@@ -473,23 +505,25 @@ package() {

 	# move ada runtime libs
 	if $LANG_ADA; then
-		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 \( -name "libgna*.so" -o -name "libgna*.a" \) ); do
+		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.so"); do
 			mv "$i" "$pkgdir"/usr/lib/
 			ln -s ../../../../${i##*/} $i
 		done
+		if [ "$CHOST" = "$CTARGET" ]; then
+			for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.a"); do
+				mv "$i" "$pkgdir"/usr/lib/
+				ln -s ../../../../${i##*/} $i
+			done
+		fi
 	fi

 	if [ "$CHOST" != "$CTARGET" ]; then
 		# cross-gcc: remove any files that would conflict with the
 		# native gcc package
-		rm -rf "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
+		rm -rf "$pkgdir"/usr/bin/cc "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
 		# libcc1 does not depend on target, don't ship it
 		rm -rf "$pkgdir"/usr/lib/libcc1.so*

-		# These are moved into packages with arch=$CTARGET_ARCH so remove
-		# cross prefix
-		#mv "$pkgdir"/usr/$CTARGET/lib/*.so.* "$pkgdir"/usr/lib/ # FIXME
-
 		# fixup gcc library symlinks to be linker scripts so
 		# linker finds the libs from relocated sysroot
 		for so in "$pkgdir"/usr/"$CTARGET"/lib/*.so; do
@@ -538,7 +572,8 @@ libatomic() {
 	depends=
 	replaces="gcc"

-	amove usr/lib/libatomic.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libatomic.so.* "$subpkgdir"/usr/lib/
 }

 libcxx() {
@@ -551,7 +586,8 @@ libcxx() {
 		nm -D "$pkgdir"/usr/lib/libstdc++.so.* | grep clock_gettime
 	fi

-	amove usr/lib/libstdc++.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libstdc++.so.* "$subpkgdir"/usr/lib/
 }

 libcxx_dev() {
@@ -569,12 +605,15 @@ libcxx_dev() {

 gpp() {
 	pkgdesc="GNU C++ standard library and compiler"
-	depends="libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel musl-dev"
-	depends="$depends so:libc.musl-x86_64.so.1 so:libgmp.so.10 so:libisl.so.23 so:libmpc.so.3 so:libmpfr.so.6 so:libz.so.1"
-	[ "$CHOST" = "$CTARGET" ] && depends="$depends libstdc++=$_gccrel"
+	depends="libstdc++=$_gccrel libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel libc-dev"
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/usr/bin \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}include \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}lib \

-	amove $_gcclibexec/cc1plus
-	amove usr/bin/*++
+	mv "$pkgdir/$_gcclibexec/cc1plus" "$subpkgdir/$_gcclibexec/"
+
+	mv "$pkgdir"/usr/bin/*++ "$subpkgdir"/usr/bin/
 }

 jit() {
@@ -593,26 +632,30 @@ libobjc() {
 	pkgdesc="GNU Objective-C runtime"
 	replaces="objc"
 	depends=
-
-	amove usr/lib/libobjc.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libobjc.so.* "$subpkgdir"/usr/lib/
 }

 objc() {
 	pkgdesc="GNU Objective-C"
 	replaces="gcc"
-	depends="musl-dev gcc=$_gccrel libobjc=$_gccrel"
+	depends="libc-dev gcc=$_gccrel libobjc=$_gccrel"

-	amove $_gcclibexec/cc1obj
-	amove $_gcclibdir/include/objc
-	amove usr/lib/libobjc.so
-	amove usr/lib/libobjc.a
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include \
+		"$subpkgdir"/usr/lib
+	mv "$pkgdir/$_gcclibexec/cc1obj" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/objc "$subpkgdir"/$_gcclibdir/include/
+	mv "$pkgdir"/usr/lib/libobjc.so "$pkgdir"/usr/lib/libobjc.a \
+		"$subpkgdir"/usr/lib/
 }

 libgcc() {
 	pkgdesc="GNU C compiler runtime libraries"
 	depends=

-	amove usr/lib/libgcc_s.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgcc_s.so.* "$subpkgdir"/usr/lib/
 }

 libgomp() {
@@ -620,15 +663,17 @@ libgomp() {
 	depends=
 	replaces="gcc"

-	amove usr/lib/libgomp.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgomp.so.* "$subpkgdir"/usr/lib/
 }

 libgphobos() {
 	pkgdesc="D programming language standard library for GCC"
 	depends=

-	amove usr/lib/libgdruntime.so.*
-	amove usr/lib/libgphobos.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgdruntime.so.* "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.so.*  "$subpkgdir"/usr/lib/
 }

 gdc() {
@@ -637,26 +682,42 @@ gdc() {
 	[ "$CBUILD" = "$CTARGET" ] && depends="$depends libgphobos=$_gccrel"
 	[ "$CHOST" = "$CTARGET" ] && provides="gcc-gdc-bootstrap=$_gccrel"

+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include/d/ \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
 	# Copy: The installed '.d' files, the static lib, the binary itself
 	# The shared libs are part of 'libgphobos' so one can run program
 	# without installing the compiler
-	amove $_gcclibexec/d21
-	amove $_gcclibdir/include/d
+	mv "$pkgdir/$_gcclibexec/d21" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/d/* "$subpkgdir"/$_gcclibdir/include/d/
 	if [ "$CBUILD" = "$CTARGET" ]; then
-		amove usr/lib/libgdruntime.so
-		amove usr/lib/libgphobos.so
+		mv "$pkgdir"/usr/lib/libgdruntime.so "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.so "$subpkgdir"/usr/lib/
 	fi
-	amove usr/${_target:+$CTARGET/}lib/libgdruntime.a
-	amove usr/${_target:+$CTARGET/}lib/libgphobos.a
-	amove usr/${_target:+$CTARGET/}lib/libgphobos.spec
-	amove usr/bin/*gdc
+	if [ "$CHOST" = "$CTARGET" ]; then
+		mv "$pkgdir"/usr/lib/libgdruntime.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.spec "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/bin/gdc "$subpkgdir"/usr/bin/
+	else
+		mkdir -p "$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgdruntime.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.spec \
+			"$subpkgdir"/usr/$CTARGET/lib/
+	fi
+	mv "$pkgdir"/usr/bin/$CTARGET-gdc "$subpkgdir"/usr/bin/
 }

 libgo() {
 	pkgdesc="Go runtime library for GCC"
 	depends=

-	amove usr/lib/libgo.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgo.so.* "$subpkgdir"/usr/lib/
 }

 go() {
@@ -664,25 +725,31 @@ go() {
 	depends="gcc=$_gccrel libgo=$_gccrel !go"
 	install="$pkgname-go.post-install"

-	amove usr/lib/go
-	amove usr/bin/*go
-	amove usr/bin/*gofmt
-	amove $_gcclibexec/go1
-	amove $_gcclibexec/cgo
-	amove $_gcclibexec/buildid
-	amove $_gcclibexec/test2json
-	amove $_gcclibexec/vet
-	amove usr/lib/libgo.a
-	amove usr/lib/libgo.so
-	amove usr/lib/libgobegin.a
-	amove usr/lib/libgolibbegin.a
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/lib/go "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/bin/*gccgo "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/bin/*go "$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gofmt "$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/go1 "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/cgo "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/buildid "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/test2json "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/vet "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/usr/lib/libgo.a \
+		"$pkgdir"/usr/lib/libgo.so \
+		"$pkgdir"/usr/lib/libgobegin.a \
+		"$pkgdir"/usr/lib/libgolibbegin.a \
+		"$subpkgdir"/usr/lib/
 }

 libgfortran() {
 	pkgdesc="Fortran runtime library for GCC"
 	depends=

-	amove usr/lib/libgfortran.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgfortran.so.* "$subpkgdir"/usr/lib/
 }

 libquadmath() {
@@ -690,7 +757,8 @@ libquadmath() {
 	pkgdesc="128-bit math library for GCC"
 	depends=

-	amove usr/lib/libquadmath.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libquadmath.so.* "$subpkgdir"/usr/lib/
 }

 gfortran() {
@@ -699,30 +767,38 @@ gfortran() {
 	$_libquadmath && depends="$depends libquadmath=$_gccrel"
 	replaces="gcc"

-	amove usr/bin/*gfortran
-	amove usr/lib/libgfortran.a
-	amove usr/lib/libgfortran.so
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gfortran "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/lib/libgfortran.a \
+		"$pkgdir"/usr/lib/libgfortran.so \
+		"$subpkgdir"/usr/lib/
 	if $_libquadmath; then
-		amove usr/lib/libquadmath.a
-		amove usr/lib/libquadmath.so
+		mv "$pkgdir"/usr/lib/libquadmath.a \
+			"$pkgdir"/usr/lib/libquadmath.so \
+			"$subpkgdir"/usr/lib/
 	fi
-	amove $_gcclibdir/finclude
-	amove $_gcclibexec/f951
-	mv -v "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibdir/finclude "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibexec/f951 "$subpkgdir"/$_gcclibexec
+	mv "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir
 }

 libgnat() {
 	pkgdesc="GNU Ada runtime shared libraries"
 	depends=

-	amove usr/lib/libgna*.so
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.so "$subpkgdir"/usr/lib/
 }

 libgnatstatic() {
 	pkgdesc="GNU Ada static libraries"
 	depends=

-	amove usr/lib/libgna*.a
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.a "$subpkgdir"/usr/lib/
 }

 gnat() {
@@ -731,9 +807,12 @@ gnat() {
 	provides="$pkgname-gnat-bootstrap=$_gccrel"
 	[ "$CHOST" = "$CTARGET" ] && depends="$depends libgnat=$_gccrel"

-	amove $_gcclibexec/*gnat*
-	amove $_gcclibdir/*ada*
-	amove usr/bin/*gnat*
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/*gnat* "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibdir/*ada* "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/usr/bin/*gnat* "$subpkgdir"/usr/bin/
 }

 gdb() {
@@ -785,5 +864,4 @@ c4482ffc36e7894b2140800159f4cbc9a3e9011e43a69b69f4fa92d5a11e2ee645c7e21df4423dd1
 06f64544fd8bc4b6c8b06410c5198aa8fb4e82c232afc0cad83b2c69ac5d39399968206defa78297222700cd18e7fd7e8244afa76d343406a01f657c86306453  0036-libphobos-add-riscv64-and-loongarch64-support.patch
 00319c9770362520e8e93bd03fda1769dfa3622eba77d620e11d8af45a38e6d804a5e924046ae388e1cfaea605696e89c343fca507aaaa5edd58d80744fff14f  fix-arm64.patch
 815265826742400f86336f0c2d3e4edc37398dbc6505ee81107c0103c13ac0f406cff851438d2323033c6c6d0c0323765ee15b975eab8d1dd465f9e988168fb9  ppc64le-quadmath.patch
-ea55e0fa6813fc95c4ca2e87f059182edc54dc61515ebb92bf6eb31dbbd176d0fe81edcc7ea28d32f84ca37e8d48a544623d3d9bc94aa41ffc0859326a616aa2  riscv64-improve-build-time.patch
 "
@@ -1,149 +0,0 @@
-Patch-Source: https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=2cf89ae83225f932b226cd57ef2d083a59bcf8a3
--
-From 2cf89ae83225f932b226cd57ef2d083a59bcf8a3 Mon Sep 17 00:00:00 2001
-From: Richard Biener <rguenther@suse.de>
-Date: Tue, 6 Aug 2024 14:56:26 +0200
-Subject: [PATCH] tree-optimization/116166 - forward jump-threading going wild
-
-Currently the forward threader isn't limited as to the search space
-it explores and with it now using path-ranger for simplifying
-conditions it runs into it became pretty slow for degenerate cases
-like compiling insn-emit.cc for RISC-V esp. when compiling for
-a host with LOGICAL_OP_NON_SHORT_CIRCUIT disabled.
-
-The following makes the forward threader honor the search space
-limit I introduced for the backward threader.  This reduces
-compile-time from minutes to seconds for the testcase in PR116166.
-
-Note this wasn't necessary before we had ranger but with ranger
-the work we do is quadatic in the length of the threading path
-we build up (the same is true for the backwards threader).
-
-	PR tree-optimization/116166
-	* tree-ssa-threadedge.h (jump_threader::thread_around_empty_blocks):
-	Add limit parameter.
-	(jump_threader::thread_through_normal_block): Likewise.
-	* tree-ssa-threadedge.cc (jump_threader::thread_around_empty_blocks):
-	Honor and decrement limit parameter.
-	(jump_threader::thread_through_normal_block): Likewise.
-	(jump_threader::thread_across_edge): Initialize limit from
-	param_max_jump_thread_paths and pass it down to workers.
---
- gcc/tree-ssa-threadedge.cc | 30 ++++++++++++++++++++++--------
- gcc/tree-ssa-threadedge.h  |  4 ++--
- 2 files changed, 24 insertions(+), 10 deletions(-)
-
-diff --git a/gcc/tree-ssa-threadedge.cc b/gcc/tree-ssa-threadedge.cc
-index 7f82639b8ecc..0aa2aa851430 100644
--- a/gcc/tree-ssa-threadedge.cc
-+++ b/gcc/tree-ssa-threadedge.cc
-@@ -786,13 +786,17 @@ propagate_threaded_block_debug_into (basic_block dest, basic_block src)
- bool
- jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 					   edge taken_edge,
-					   bitmap visited)
-+					   bitmap visited, unsigned &limit)
- {
-   basic_block bb = taken_edge->dest;
-   gimple_stmt_iterator gsi;
-   gimple *stmt;
-   tree cond;
- 
-+  if (limit == 0)
-+    return false;
-+  --limit;
-+
-   /* The key property of these blocks is that they need not be duplicated
-      when threading.  Thus they cannot have visible side effects such
-      as PHI nodes.  */
-@@ -830,7 +834,8 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 	      m_registry->push_edge (path, taken_edge, EDGE_NO_COPY_SRC_BLOCK);
- 	      m_state->append_path (taken_edge->dest);
- 	      bitmap_set_bit (visited, taken_edge->dest->index);
-	      return thread_around_empty_blocks (path, taken_edge, visited);
-+	      return thread_around_empty_blocks (path, taken_edge, visited,
-+						 limit);
- 	    }
- 	}
- 
-@@ -872,7 +877,7 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
-       m_registry->push_edge (path, taken_edge, EDGE_NO_COPY_SRC_BLOCK);
-       m_state->append_path (taken_edge->dest);
- 
-      thread_around_empty_blocks (path, taken_edge, visited);
-+      thread_around_empty_blocks (path, taken_edge, visited, limit);
-       return true;
-     }
- 
-@@ -899,8 +904,13 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 
- int
- jump_threader::thread_through_normal_block (vec<jump_thread_edge *> *path,
-					    edge e, bitmap visited)
-+					    edge e, bitmap visited,
-+					    unsigned &limit)
- {
-+  if (limit == 0)
-+    return 0;
-+  limit--;
-+
-   m_state->register_equivs_edge (e);
- 
-   /* PHIs create temporary equivalences.
-@@ -989,7 +999,7 @@ jump_threader::thread_through_normal_block (vec<jump_thread_edge *> *path,
-  	     visited.  This may be overly conservative.  */
- 	  bitmap_set_bit (visited, dest->index);
- 	  bitmap_set_bit (visited, e->dest->index);
-	  thread_around_empty_blocks (path, taken_edge, visited);
-+	  thread_around_empty_blocks (path, taken_edge, visited, limit);
- 	  return 1;
- 	}
-     }
-@@ -1075,9 +1085,12 @@ jump_threader::thread_across_edge (edge e)
-   bitmap_set_bit (visited, e->src->index);
-   bitmap_set_bit (visited, e->dest->index);
- 
-+  /* Limit search space.  */
-+  unsigned limit = param_max_jump_thread_paths;
-+
-   int threaded = 0;
-   if ((e->flags & EDGE_DFS_BACK) == 0)
-    threaded = thread_through_normal_block (path, e, visited);
-+    threaded = thread_through_normal_block (path, e, visited, limit);
- 
-   if (threaded > 0)
-     {
-@@ -1148,11 +1161,12 @@ jump_threader::thread_across_edge (edge e)
- 	m_registry->push_edge (path, e, EDGE_START_JUMP_THREAD);
- 	m_registry->push_edge (path, taken_edge, EDGE_COPY_SRC_JOINER_BLOCK);
- 
-	found = thread_around_empty_blocks (path, taken_edge, visited);
-+	found = thread_around_empty_blocks (path, taken_edge, visited, limit);
- 
- 	if (!found)
- 	  found = thread_through_normal_block (path,
-					       path->last ()->e, visited) > 0;
-+					       path->last ()->e, visited,
-+					       limit) > 0;
- 
- 	/* If we were able to thread through a successor of E->dest, then
- 	   record the jump threading opportunity.  */
-diff --git a/gcc/tree-ssa-threadedge.h b/gcc/tree-ssa-threadedge.h
-index 9f6cbfe93307..245b3506a550 100644
--- a/gcc/tree-ssa-threadedge.h
-+++ b/gcc/tree-ssa-threadedge.h
-@@ -101,9 +101,9 @@ private:
- 					  unsigned limit);
- 
-   bool thread_around_empty_blocks (vec<class jump_thread_edge *> *path,
-				   edge, bitmap visited);
-+				   edge, bitmap visited, unsigned &limit);
-   int thread_through_normal_block (vec<jump_thread_edge *> *path,
-				   edge, bitmap visited);
-+				   edge, bitmap visited, unsigned &limit);
-   void thread_across_edge (edge);
-   bool record_temporary_equivalences_from_phis (edge);
-   gimple *record_temporary_equivalences_from_stmts_at_dest (edge);
-- 
-2.43.5
-
@@ -0,0 +1,42 @@
+From 47b4bd4deb2c356bb07d2a96f22127aefafec3a4 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Fri, 26 Jan 2018 20:32:50 +0000
+Subject: [PATCH 01/35] posix_memalign
+
+---
+ gcc/config/i386/pmm_malloc.h | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/i386/pmm_malloc.h b/gcc/config/i386/pmm_malloc.h
+index 3527283693b..c4071b64b53 100644
+--- a/gcc/config/i386/pmm_malloc.h
+++ b/gcc/config/i386/pmm_malloc.h
+@@ -27,12 +27,13 @@
+ #include <stdlib.h>
+ 
+ /* We can't depend on <stdlib.h> since the prototype of posix_memalign
+-   may not be visible.  */
+   may not be visible and we can't pollute the namespace either.  */
+ #ifndef __cplusplus
+-extern int posix_memalign (void **, size_t, size_t);
+extern int _mm_posix_memalign (void **, size_t, size_t)
+ #else
+-extern "C" int posix_memalign (void **, size_t, size_t) throw ();
+extern "C" int _mm_posix_memalign (void **, size_t, size_t) throw ()
+ #endif
+__asm__("posix_memalign");
+ 
+ static __inline void *
+ _mm_malloc (size_t __size, size_t __alignment)
+@@ -42,7 +43,7 @@ _mm_malloc (size_t __size, size_t __alignment)
+     return malloc (__size);
+   if (__alignment == 2 || (sizeof (void *) == 8 && __alignment == 4))
+     __alignment = sizeof (void *);
+-  if (posix_memalign (&__ptr, __alignment, __size) == 0)
+  if (_mm_posix_memalign (&__ptr, __alignment, __size) == 0)
+     return __ptr;
+   else
+     return NULL;
+-- 
+2.41.0
+
@@ -0,0 +1,203 @@
+From 4fa620d8c3e6730211bfb071eb4c817320491bd0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH 02/35] gcc: poison-system-directories
+
+Add /sw/include and /opt/include based on the original
+zecke-no-host-includes.patch patch.  The original patch checked for
+/usr/include, /sw/include and /opt/include and then triggered a failure and
+aborted.
+
+Instead, we add the two missing items to the current scan.  If the user
+wants this to be a failure, they can add "-Werror=poison-system-directories".
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/common.opt      |  4 ++++
+ gcc/config.in       |  6 ++++++
+ gcc/configure       | 16 ++++++++++++++++
+ gcc/configure.ac    | 10 ++++++++++
+ gcc/doc/invoke.texi |  9 +++++++++
+ gcc/gcc.cc          |  2 ++
+ gcc/incpath.cc      | 21 +++++++++++++++++++++
+ 7 files changed, 68 insertions(+)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 862c474d3c8..64c4277c991 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -711,6 +711,10 @@ Wreturn-local-addr
+ Common Var(warn_return_local_addr) Init(1) Warning
+ Warn about returning a pointer/reference to a local or temporary variable.
+ 
+Wpoison-system-directories
+Common Var(flag_poison_system_directories) Init(1) Warning
+Warn for -I and -L options using system directories if cross compiling
+
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one variable shadows another.  Same as -Wshadow=global.
+diff --git a/gcc/config.in b/gcc/config.in
+index 4cad077bfbe..0679fbbf4c6 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -236,6 +236,12 @@
+ #endif
+ 
+ 
+/* Define to warn for use of native system header directories */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_POISON_SYSTEM_DIRECTORIES
+#endif
+
+
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+diff --git a/gcc/configure b/gcc/configure
+index c7b26d1927d..8c46369f73f 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -1026,6 +1026,7 @@ enable_maintainer_mode
+ enable_link_mutex
+ enable_link_serialization
+ enable_version_specific_runtime_libs
+enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1788,6 +1789,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
+  --enable-poison-system-directories
+                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -31753,6 +31756,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then :
+ fi
+ 
+ 
+# Check whether --enable-poison-system-directories was given.
+if test "${enable_poison_system_directories+set}" = set; then :
+  enableval=$enable_poison_system_directories;
+else
+  enable_poison_system_directories=no
+fi
+
+if test "x${enable_poison_system_directories}" = "xyes"; then
+
+$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
+
+fi
+
+ # Substitute configuration variables
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 09082e8ccae..5504bf6eb01 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7292,6 +7292,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
+AC_ARG_ENABLE([poison-system-directories],
+             AS_HELP_STRING([--enable-poison-system-directories],
+                            [warn for use of native system header directories]),,
+             [enable_poison_system_directories=no])
+if test "x${enable_poison_system_directories}" = "xyes"; then
+  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
+           [1],
+           [Define to warn for use of native system header directories])
+fi
+
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index af0e5933fdb..b6731a4673c 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -384,6 +384,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wpacked  -Wno-packed-bitfield-compat  -Wpacked-not-aligned  -Wpadded
+ -Wparentheses  -Wno-pedantic-ms-format
+ -Wpointer-arith  -Wno-pointer-compare  -Wno-pointer-to-int-cast
+-Wno-poison-system-directories
+ -Wno-pragmas  -Wno-prio-ctor-dtor  -Wredundant-decls
+ -Wrestrict  -Wno-return-local-addr  -Wreturn-type
+ -Wno-scalar-storage-order  -Wsequence-point
+@@ -8426,6 +8427,14 @@ made up of data only and thus requires no special treatment.  But, for
+ most targets, it is made up of code and thus requires the stack to be
+ made executable in order for the program to work properly.
+ 
+@opindex Wno-poison-system-directories
+@item -Wno-poison-system-directories
+Do not warn for @option{-I} or @option{-L} options using system
+directories such as @file{/usr/include} when cross compiling.  This
+option is intended for use in chroot environments when such
+directories contain the correct headers and libraries for the target
+system rather than the host.
+
+ @opindex Wfloat-equal
+ @opindex Wno-float-equal
+ @item -Wfloat-equal
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 16bb07f2cdc..33b56e721d2 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1177,6 +1187,8 @@ proper position among the other output files.  */
+    "-z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+    %{Wno-poison-system-directories:--no-poison-system-directories} \
+    %{Werror=poison-system-directories:--error-poison-system-directories} \
+     %{static|no-pie|static-pie:} %@{L*} %(link_libgcc) " \
+     VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
+     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+diff --git a/gcc/incpath.cc b/gcc/incpath.cc
+index 4d44321183f..0f3f071b44c 100644
+--- a/gcc/incpath.cc
+++ b/gcc/incpath.cc
+@@ -26,6 +26,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
+#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -399,6 +400,26 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
+
+#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
+  if (flag_poison_system_directories)
+    {
+       struct cpp_dir *p;
+
+       for (p = heads[INC_QUOTE]; p; p = p->next)
+         {
+          if ((!strncmp (p->name, "/usr/include", 12))
+              || (!strncmp (p->name, "/usr/local/include", 18))
+              || (!strncmp (p->name, "/usr/X11R6/include", 18))
+              || (!strncmp (p->name, "/sw/include", 11))
+              || (!strncmp (p->name, "/opt/include", 12)))
+            warning (OPT_Wpoison_system_directories,
+                     "include location \"%s\" is unsafe for "
+                     "cross-compilation",
+                     p->name);
+         }
+    }
+#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
+-- 
+2.41.0
+
@@ -0,0 +1,44 @@
+From ff4dd4ce33133e675b7bedc86b73357c04631cb9 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:45:49 +0000
+Subject: [PATCH 03/35] specs: turn on -Wl,-z,now by default
+
+Previously, we also used to turn on -z relro here, but we now build
+binutils with --enable-relro, which is functionally equivalent.
+
+Binutils does not appear to have a similar option for enabling -z
+now by default.
+---
+ gcc/doc/invoke.texi | 3 +++
+ gcc/gcc.cc          | 1 +
+ 2 files changed, 4 insertions(+)
+
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index b6731a4673c..f393c7846c6 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -17961,6 +17961,9 @@ For example, @option{-Wl,-Map,output.map} passes @option{-Map output.map} to the
+ linker.  When using the GNU linker, you can also get the same effect with
+ @option{-Wl,-Map=output.map}.
+ 
+NOTE: In Alpine Linux, for LDFLAGS, the option
+@option{-Wl,-z,now} is used.  To disable, use @option{-Wl,-z,nonow}.
+
+ @opindex u
+ @item -u @var{symbol}
+ Pretend the symbol @var{symbol} is undefined, to force linking of
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 33b56e721d2..f82fae23c22 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1144,6 +1144,7 @@ proper position among the other output files.  */
+    "%{flto|flto=*:%<fcompare-debug*} \
+     %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+   "-z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+     %{Wno-poison-system-directories:--no-poison-system-directories} \
+-- 
+2.41.0
+
@@ -0,0 +1,46 @@
+From 1b315235433701e4a974da259b8d651169ddc7ac Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:22 +0000
+Subject: [PATCH 04/35] Turn on -D_FORTIFY_SOURCE=2 by default for C, C++,
+ ObjC, ObjC++, if the optimization level is > 0
+
+---
+ gcc/c-family/c-cppbuiltin.cc | 4 ++++
+ gcc/doc/invoke.texi          | 6 ++++++
+ 2 files changed, 10 insertions(+)
+
+diff --git a/gcc/c-family/c-cppbuiltin.cc b/gcc/c-family/c-cppbuiltin.cc
+index 5d64625fcd7..868d69506e4 100644
+--- a/gcc/c-family/c-cppbuiltin.cc
+++ b/gcc/c-family/c-cppbuiltin.cc
+@@ -1546,6 +1546,10 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
+  /* Fortify Source enabled by default for optimization levels > 0 */
+  if (optimize)
+    builtin_define_with_int_value ("_FORTIFY_SOURCE", 2);
+
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index f393c7846c6..ef3c14a189e 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -11868,6 +11868,12 @@ also turns on the following optimization flags:
+ Please note the warning under @option{-fgcse} about
+ invoking @option{-O2} on programs that use computed gotos.
+ 
+NOTE: In Alpine Linux, @option{-D_FORTIFY_SOURCE=2} is
+set by default, and is activated when @option{-O} is set to 2 or higher.
+This enables additional compile-time and run-time checks for several libc
+functions.  To disable, specify either @option{-U_FORTIFY_SOURCE} or
+@option{-D_FORTIFY_SOURCE=0}.
+
+ @opindex O3
+ @item -O3
+ Optimize yet more.  @option{-O3} turns on all optimizations specified
+-- 
+2.41.0
+
@@ -0,0 +1,272 @@
+From 67c0f5789630b27149f60ff831999ef7c1dba5d5 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:56 +0000
+Subject: [PATCH 05/35] On linux targets pass --as-needed by default to the
+ linker, but always link the sanitizer libraries with --no-as-needed.
+
+---
+ gcc/config/aarch64/aarch64-linux.h |  1 +
+ gcc/config/alpha/linux-elf.h       |  2 +-
+ gcc/config/arm/linux-elf.h         |  1 +
+ gcc/config/gnu-user.h              |  6 +++---
+ gcc/config/i386/gnu-user.h         |  2 +-
+ gcc/config/i386/gnu-user64.h       |  1 +
+ gcc/config/ia64/linux.h            |  2 +-
+ gcc/config/mips/gnu-user.h         |  1 +
+ gcc/config/riscv/linux.h           |  1 +
+ gcc/config/rs6000/linux64.h        |  4 ++--
+ gcc/config/rs6000/sysv4.h          |  2 +-
+ gcc/config/s390/linux.h            |  2 +-
+ gcc/config/sparc/linux.h           |  2 +-
+ gcc/gcc.cc                         | 28 ++++++++++++++++++++--------
+ 14 files changed, 36 insertions(+), 19 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64-linux.h b/gcc/config/aarch64/aarch64-linux.h
+index 4277f03da2a..b131983a546 100644
+--- a/gcc/config/aarch64/aarch64-linux.h
+++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -35,6 +35,7 @@
+ #define CPP_SPEC "%{pthread:-D_REENTRANT}"
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*}		\
+   --as-needed					\
+    %{static:-Bstatic}				\
+    %{shared:-shared}				\
+    %{symbolic:-Bsymbolic}			\
+diff --git a/gcc/config/alpha/linux-elf.h b/gcc/config/alpha/linux-elf.h
+index 03f783f2ad1..d946e700dda 100644
+--- a/gcc/config/alpha/linux-elf.h
+++ b/gcc/config/alpha/linux-elf.h
+@@ -37,7 +37,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #define ELF_DYNAMIC_LINKER	GNU_USER_DYNAMIC_LINKER
+ 
+-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax}		\
+#define LINK_SPEC "-m elf64alpha --as-needed %{G*} %{relax:-relax}		\
+   %{O*:-O3} %{!O*:-O1}						\
+   %{shared:-shared}						\
+   %{!shared:							\
+diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
+index 7b7b7cbbe14..49c050c6f2c 100644
+--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
+@@ -70,6 +70,7 @@
+      %{rdynamic:-export-dynamic} \
+      %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+    -X \
+   --as-needed \
+    %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+    SUBTARGET_EXTRA_LINK_SPEC
+ 
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index eda8010b133..b26b17f2f2a 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -136,7 +136,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \
+   "%{static-libasan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBHWASAN_EARLY_SPEC
+ #define LIBHWASAN_EARLY_SPEC "%{!shared:libhwasan_preinit%O%s} " \
+   "%{static-libhwasan:%{!shared:" \
+@@ -146,12 +146,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBTSAN_EARLY_SPEC "%{!shared:libtsan_preinit%O%s} " \
+   "%{static-libtsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_EARLY_SPEC "%{!shared:liblsan_preinit%O%s} " \
+   "%{static-liblsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #endif
+ 
+ #undef TARGET_F951_OPTIONS
+diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h
+index a79b739089d..e0752673dff 100644
+--- a/gcc/config/i386/gnu-user.h
+++ b/gcc/config/i386/gnu-user.h
+@@ -68,7 +68,7 @@ along with GCC; see the file COPYING3.  If not see
+   { "link_emulation", GNU_USER_LINK_EMULATION },\
+   { "dynamic_linker", GNU_USER_DYNAMIC_LINKER }
+ 
+-#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \
+#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) --as-needed %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+       %{!static-pie: \
+diff --git a/gcc/config/i386/gnu-user64.h b/gcc/config/i386/gnu-user64.h
+index 3b63b99acf6..759bf0db86f 100644
+--- a/gcc/config/i386/gnu-user64.h
+++ b/gcc/config/i386/gnu-user64.h
+@@ -56,6 +56,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+                   "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
+                    %{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \
+                    %{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \
+  --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/ia64/linux.h b/gcc/config/ia64/linux.h
+index 5dfd428aa17..02656dad7fc 100644
+--- a/gcc/config/ia64/linux.h
+++ b/gcc/config/ia64/linux.h
+@@ -58,7 +58,7 @@ do {						\
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
+ 
+ #undef LINK_SPEC
+-#define LINK_SPEC "\
+#define LINK_SPEC " --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/mips/gnu-user.h b/gcc/config/mips/gnu-user.h
+index a4e5380b589..3cc61bce69f 100644
+--- a/gcc/config/mips/gnu-user.h
+++ b/gcc/config/mips/gnu-user.h
+@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3.  If not see
+ #undef GNU_USER_TARGET_LINK_SPEC
+ #define GNU_USER_TARGET_LINK_SPEC "\
+   %{G*} %{EB} %{EL} %{mips*} %{shared} \
+ -as-needed \
+   %{!shared: \
+     %{!static: \
+       %{rdynamic:-export-dynamic} \
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index 3e625e0f867..f8c2c351e5a 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -48,6 +48,7 @@ along with GCC; see the file COPYING3.  If not see
+   "%{mabi=ilp32:_ilp32}"
+ 
+ #define LINK_SPEC "\
+-as-needed \
+ -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
+ %{mno-relax:--no-relax} \
+ %{mbig-endian:-EB} \
+diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
+index 9e457033d11..08016bf224d 100644
+--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
+@@ -377,13 +377,13 @@ extern int dot_symbols;
+ 					   " -m elf64ppc")
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \
+   %(link_os_extra_spec32)"
+ 
+-#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \
+diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
+index ae932fc22f0..c8ff0c6dc8e 100644
+--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
+@@ -780,7 +780,7 @@ GNU_USER_TARGET_CC1_SPEC
+ #define GNU_USER_DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC "-m elf32ppclinux --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+ 
+diff --git a/gcc/config/s390/linux.h b/gcc/config/s390/linux.h
+index 02aa1edaff8..64df5801134 100644
+--- a/gcc/config/s390/linux.h
+++ b/gcc/config/s390/linux.h
+@@ -82,7 +82,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #undef  LINK_SPEC
+ #define LINK_SPEC \
+-  "%{m31:-m elf_s390}%{m64:-m elf64_s390} \
+  "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \
+    %{shared:-shared} \
+    %{!shared: \
+       %{static:-static} \
+diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
+index 0e33b3cac2c..c2f44546e62 100644
+--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
+@@ -81,7 +81,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+ #undef  LINK_SPEC
+-#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
+#define LINK_SPEC "-m elf32_sparc --as-needed %{shared:-shared} \
+   %{!mno-relax:%{!r:-relax}} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index f82fae23c22..da6417dd0d1 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -754,8 +754,11 @@ proper position among the other output files.  */
+ #ifdef LIBASAN_EARLY_SPEC
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
+-		     "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lasan " \
+		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -790,8 +793,11 @@ proper position among the other output files.  */
+ #ifdef LIBTSAN_EARLY_SPEC
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
+-		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -ltsan " \
+		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -808,8 +814,11 @@ proper position among the other output files.  */
+ #ifdef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
+-		     "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -llsan " \
+		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -824,8 +833,11 @@ proper position among the other output files.  */
+ #define STATIC_LIBUBSAN_LIBS \
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+-#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
+-		     "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lubsan " \
+		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+-- 
+2.41.0
+
@@ -0,0 +1,34 @@
+From bb25e8489384504cd59e4a2538720863da1fb29c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:47:43 +0000
+Subject: [PATCH 06/35] Enable -Wformat and -Wformat-security by default.
+
+---
+ gcc/c-family/c.opt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
+index a75038930ae..b98726f33ed 100644
+--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
+@@ -704,7 +704,7 @@ Warn about function calls with format strings that write past the end
+ of the destination region.  Same as -Wformat-overflow=1.
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions.
+ 
+ Wformat-signedness
+@@ -725,7 +725,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats.
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+ Warn about printf/scanf/strftime/strfmon format string anomalies.
+ 
+ Wformat-overflow=
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From 4a728ad48a7b437cc6f2697e26603bf648149f86 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:48:24 +0000
+Subject: [PATCH 07/35] Enable -Wtrampolines by default.
+
+---
+ gcc/common.opt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 64c4277c991..c24839d32bc 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -803,7 +803,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers.
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
+Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated.
+ 
+ Wtrivial-auto-var-init
+-- 
+2.41.0
+
@@ -0,0 +1,53 @@
+From 32f24560d0602f7735d5e9efd92fe3151bd72cea Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:49:40 +0000
+Subject: [PATCH 08/35] Disable ssp on -nostdlib, -nodefaultlibs and
+ -ffreestanding Change the buffer size.
+
+---
+ gcc/gcc.cc     | 8 +++++++-
+ gcc/params.opt | 2 +-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index da6417dd0d1..b5a6f200635 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -983,6 +983,12 @@ proper position among the other output files.  */
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+ #endif
+ 
+#ifdef ENABLE_DEFAULT_SSP
+#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} "
+#else
+#define NO_SSP_SPEC ""
+#endif
+
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1282,7 +1288,7 @@ static const char *cc1_options =
+  %{-version:--version}\
+  %{-help=*:--help=%*}\
+  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
+- %{fsyntax-only:-o %j} %{-param*}\
+ %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\
+  %{coverage:-fprofile-arcs -ftest-coverage}\
+  %{fprofile-arcs|fprofile-generate*|coverage:\
+    %{!fprofile-update=single:\
+diff --git a/gcc/params.opt b/gcc/params.opt
+index 823cdb2ff85..5b096899b40 100644
+--- a/gcc/params.opt
+++ b/gcc/params.opt
+@@ -1006,7 +1006,7 @@ Common Joined UInteger Var(param_ssa_name_def_chain_limit) Init(512) Param Optim
+ The maximum number of SSA_NAME assignments to follow in determining a value.
+ 
+ -param=ssp-buffer-size=
+-Common Joined UInteger Var(param_ssp_buffer_size) Init(8) IntegerRange(1, 65536) Param Optimization
+Common Joined UInteger Var(param_ssp_buffer_size) Init(4) IntegerRange(1, 65536) Param Optimization
+ The lower bound for a buffer to be considered for stack smashing protection.
+ 
+ -param=stack-clash-protection-guard-size=
+-- 
+2.41.0
+
@@ -0,0 +1,54 @@
+From c7ec8da7280d7f97f5543eb9ddeca7600aafc43c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:50:33 +0000
+Subject: [PATCH 09/35] Ensure that msgfmt doesn't encounter problems during
+ gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+---
+ libstdc++-v3/po/Makefile.am | 1 +
+ libstdc++-v3/po/Makefile.in | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/libstdc++-v3/po/Makefile.am b/libstdc++-v3/po/Makefile.am
+index 12d34910830..61b13762b71 100644
+--- a/libstdc++-v3/po/Makefile.am
+++ b/libstdc++-v3/po/Makefile.am
+@@ -38,6 +38,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+diff --git a/libstdc++-v3/po/Makefile.in b/libstdc++-v3/po/Makefile.in
+index 8e93445acd2..d6ff06e5ddb 100644
+--- a/libstdc++-v3/po/Makefile.in
+++ b/libstdc++-v3/po/Makefile.in
+@@ -561,6 +561,7 @@ uninstall-am:
+ 
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+-- 
+2.41.0
+
@@ -0,0 +1,28 @@
+From aaa029bcee68298695b7c4278c90b6bc320d098c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:52:07 +0000
+Subject: [PATCH 10/35] Don't declare asprintf if defined as a macro.
+
+---
+ include/libiberty.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/include/libiberty.h b/include/libiberty.h
+index 1d5c779fcff..19e3cb1e31c 100644
+--- a/include/libiberty.h
+++ b/include/libiberty.h
+@@ -652,8 +652,11 @@ extern void *bsearch_r (const void *, const void *,
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
+/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
+#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
+#endif
+ 
+ /* Like asprintf but allocates memory without fail. This works like
+    xmalloc.  */
+-- 
+2.41.0
+
@@ -0,0 +1,24 @@
+From 65e01e749205c9af218b01233cebd0077538d0ee Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:53:00 +0000
+Subject: [PATCH 11/35] libiberty: copy PIC objects during build process
+
+---
+ libiberty/Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
+index 72608f3e4a7..58356884728 100644
+--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
+@@ -265,6 +265,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
+	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
+-- 
+2.41.0
+
@@ -0,0 +1,57 @@
+From 453a815bf2844971a91eaef800af188d9e86b784 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:09:53 +0000
+Subject: [PATCH 12/35] libgcc_s
+
+---
+ gcc/config/i386/i386-expand.cc | 4 ++--
+ libgcc/config/i386/cpuinfo.c   | 6 +++---
+ libgcc/config/i386/t-linux     | 2 +-
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
+index 0d817fc3f3b..2e99db00db9 100644
+--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
+@@ -12691,10 +12691,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
+     {
+     case IX86_BUILTIN_CPU_INIT:
+       {
+-	/* Make it call __cpu_indicator_init in libgcc.  */
+	/* Make it call __cpu_indicator_init in libgcc.a.  */
+ 	tree call_expr, fndecl, type;
+ 	type = build_function_type_list (integer_type_node, NULL_TREE);
+-	fndecl = build_fn_decl ("__cpu_indicator_init", type);
+	fndecl = build_fn_decl ("__cpu_indicator_init_local", type);
+ 	call_expr = build_call_expr (fndecl, 0);
+ 	return expand_expr (call_expr, target, mode, EXPAND_NORMAL);
+       }
+diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
+index 50b6d8248a2..724ced402a1 100644
+--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
+@@ -63,7 +63,7 @@ __cpu_indicator_init (void)
+ 			     __cpu_features2);
+ }
+ 
+-#if defined SHARED && defined USE_ELF_SYMVER
+-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
+#ifndef SHARED
+int __cpu_indicator_init_local (void)
+  __attribute__ ((weak, alias ("__cpu_indicator_init")));
+ #endif
+diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux
+index 8506a635790..564296f788e 100644
+--- a/libgcc/config/i386/t-linux
+++ b/libgcc/config/i386/t-linux
+@@ -3,5 +3,5 @@
+ # t-slibgcc-elf-ver and t-linux
+ SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER $(CET_FLAGS)
+HOST_LIBGCC2_CFLAGS += -mlong-double-80 $(CET_FLAGS)
+ CRTSTUFF_T_CFLAGS += $(CET_FLAGS)
+-- 
+2.41.0
+
@@ -0,0 +1,85 @@
+From 7d7d12137c666761a8dd61179c9651b85dae9b41 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 7 Nov 2015 02:08:05 +0000
+Subject: [PATCH 13/35] nopie
+
+---
+ gcc/configure    | 27 +++++++++++++++++++++++++++
+ gcc/configure.ac | 13 +++++++++++++
+ 2 files changed, 40 insertions(+)
+
+diff --git a/gcc/configure b/gcc/configure
+index 23da7d55d..f38732bb2 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -34534,6 +34534,29 @@ rm -f core conftest.err conftest.$ac_objext \
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_no_pie" >&5
+ $as_echo "$gcc_cv_no_pie" >&6; }
+# Check if -nopie works.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5
+$as_echo_n "checking for -nopie option... " >&6; }
+if ${gcc_cv_nopie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  saved_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -nopie"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void) {return 0;}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  gcc_cv_nopie=yes
+else
+  gcc_cv_nopie=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+   LDFLAGS="$saved_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5
+$as_echo "$gcc_cv_nopie" >&6; }
+ 
+ if test x$enable_host_shared = xyes; then
+   PICFLAG=-fPIC
+@@ -34551,6 +34574,8 @@ if test x$enable_host_pie = xyes; then
+   LD_PICFLAG=-pie
+ elif test x$gcc_cv_no_pie = xyes; then
+   LD_PICFLAG=-no-pie
+elif test x$gcc_cv_nopie = xyes; then
+  LD_PICFLAG=-nopie
+ else
+   LD_PICFLAG=
+ fi
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index d7cf0b92c..db2e2c802 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7781,6 +7781,15 @@ AC_CACHE_CHECK([for -no-pie option],
+      [gcc_cv_no_pie=yes],
+      [gcc_cv_no_pie=no])
+    LDFLAGS="$saved_LDFLAGS"])
+# Check if -nopie works.
+AC_CACHE_CHECK([for -nopie option],
+  [gcc_cv_nopie],
+  [saved_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -nopie"
+   AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
+     [gcc_cv_nopie=yes],
+     [gcc_cv_nopie=no])
+   LDFLAGS="$saved_LDFLAGS"])
+ 
+ if test x$enable_host_shared = xyes; then
+   PICFLAG=-fPIC
+@@ -7798,6 +7807,8 @@ if test x$enable_host_pie = xyes; then
+   LD_PICFLAG=-pie
+ elif test x$gcc_cv_no_pie = xyes; then
+   LD_PICFLAG=-no-pie
+elif test x$gcc_cv_nopie = xyes; then
+  LD_PICFLAG=-nopie
+ else
+   LD_PICFLAG=
+ fi
+-- 
+2.41.0
+
@@ -0,0 +1,42 @@
+From dd5bb97c31a9f57034c70a7a18ba6e2e133084c7 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:16 +0000
+Subject: [PATCH 14/35] ada: fix shared linking
+
+---
+ gcc/ada/link.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/ada/link.c b/gcc/ada/link.c
+index f2126441208..22cfa9c641f 100644
+--- a/gcc/ada/link.c
+++ b/gcc/ada/link.c
+@@ -107,9 +107,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+    || defined (__NetBSD__) || defined (__OpenBSD__) \
+    || defined (__QNX__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
+@@ -129,9 +129,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+ 
+ #elif defined (__linux__) || defined (__GLIBC__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
+-- 
+2.41.0
+
@@ -0,0 +1,24 @@
+From 6bb5b7d9161d05f31b001d8211a9c63caf63fd2f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:43 +0000
+Subject: [PATCH 15/35] build: fix CXXFLAGS_FOR_BUILD passing
+
+---
+ Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.in b/Makefile.in
+index 06a9398e172..6ff2b3f9925 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -178,6 +178,7 @@ BUILD_EXPORTS = \
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
+	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From f0d9e00cac06689f64b214de7aee80d7116ef084 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:01:06 +0000
+Subject: [PATCH 16/35] add fortify-headers paths
+
+---
+ gcc/config/linux.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index e3aca79cccc..b3537b8fbeb 100644
+--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
+@@ -159,6 +159,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 2 },	\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 0 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
+ #else
+-- 
+2.41.0
+
@@ -0,0 +1,31 @@
+From 857db04f4f1a06e866551b4172fe8f27363f4a92 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
+Date: Fri, 21 Aug 2020 07:03:00 +0000
+Subject: [PATCH 17/35] Alpine musl package provides libssp_nonshared.a. We
+ link to it unconditionally, as otherwise we get link failures if some objects
+ are -fstack-protector built and final link happens with -fno-stack-protector.
+ This seems to be the common case when bootstrapping gcc, the piepatches do
+ not seem to fully fix the crosstoolchain and bootstrap sequence wrt.
+ stack-protector flag usage.
+
+---
+ gcc/gcc.cc | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index b5a6f200635..6cbb726599b 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -991,8 +991,7 @@ proper position among the other output files.  */
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+-		       "|fstack-protector-strong|fstack-protector-explicit:}"
+#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit" \
+-- 
+2.41.0
+
@@ -0,0 +1,69 @@
+From 5a8347e23ab13912b6edec2c6c6e3a101b017c79 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:03:42 +0000
+Subject: [PATCH 18/35] DP: Use --push-state/--pop-state for gold as well when
+ linking libtsan.
+
+---
+ gcc/gcc.cc | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 6cbb726599b..59390fd39d6 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -755,10 +755,10 @@ proper position among the other output files.  */
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libasan:--push-state --no-as-needed}" \
+ 		     " -lasan " \
+ 		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libasan:--pop-state}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -794,10 +794,10 @@ proper position among the other output files.  */
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libtsan:--push-state --no-as-needed}" \
+ 		     " -ltsan " \
+ 		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libtsan:--pop-state}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -815,10 +815,10 @@ proper position among the other output files.  */
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-liblsan:--push-state --no-as-needed}" \
+ 		     " -llsan " \
+ 		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-liblsan:--pop-state}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -834,10 +834,10 @@ proper position among the other output files.  */
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+ #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libubsan:--push-state --no-as-needed}" \
+ 		     " -lubsan " \
+ 		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libubsan:--pop-state}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+-- 
+2.41.0
+
@@ -0,0 +1,26 @@
+From 41d00a2eb0754acf71958808bd17dbebeb517b84 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:12:55 +0000
+Subject: [PATCH 19/35] aarch64: disable multilib support
+
+multilib is unsupported on Alpine GCC
+---
+ gcc/config/aarch64/t-aarch64-linux | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/aarch64/t-aarch64-linux b/gcc/config/aarch64/t-aarch64-linux
+index 57bf4100fcd..172894b57ef 100644
+--- a/gcc/config/aarch64/t-aarch64-linux
+++ b/gcc/config/aarch64/t-aarch64-linux
+@@ -22,7 +22,7 @@ LIB1ASMSRC   = aarch64/lib1funcs.asm
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+ AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
+MULTILIB_OSDIRNAMES = mabi.lp64=../lib
+ MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+ MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From 85b42bfbba71616831d14360b16998acb28790fd Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:13:59 +0000
+Subject: [PATCH 20/35] s390x: disable multilib support
+
+multilib is not supported on Alpine GCC at present
+---
+ gcc/config/s390/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/s390/t-linux64 b/gcc/config/s390/t-linux64
+index cc6ab367072..7f498ee1cdc 100644
+--- a/gcc/config/s390/t-linux64
+++ b/gcc/config/s390/t-linux64
+@@ -7,5 +7,5 @@
+ 
+ MULTILIB_OPTIONS = m64/m31
+ MULTILIB_DIRNAMES = 64 32
+-MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu)
+-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+-- 
+2.41.0
+
@@ -0,0 +1,81 @@
+From 7b53df284242638e940c0155b6c21e88cea1f55b Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:33 +0000
+Subject: [PATCH 21/35] ppc64[le]: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/rs6000/t-linux       | 6 ++++--
+ gcc/config/rs6000/t-linux64     | 4 ++--
+ gcc/config/rs6000/t-linux64bele | 4 ++--
+ gcc/config/rs6000/t-linux64lebe | 4 ++--
+ 4 files changed, 10 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/config/rs6000/t-linux b/gcc/config/rs6000/t-linux
+index 4e371255533..128c75c7d39 100644
+--- a/gcc/config/rs6000/t-linux
+++ b/gcc/config/rs6000/t-linux
+@@ -2,7 +2,8 @@
+ # or soft-float.
+ ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
+ ifneq (,$(findstring powerpc64,$(target)))
+-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ else
+ MULTIARCH_DIRNAME := $(call if_multiarch,powerpc-linux-gnu)
+ endif
+@@ -10,7 +11,8 @@ ifneq (,$(findstring powerpcle,$(target)))
+ MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME))
+ endif
+ ifneq (,$(findstring powerpc64le,$(target)))
+-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ endif
+ endif
+ 
+diff --git a/gcc/config/rs6000/t-linux64 b/gcc/config/rs6000/t-linux64
+index 01a94242308..b3a76379c03 100644
+--- a/gcc/config/rs6000/t-linux64
+++ b/gcc/config/rs6000/t-linux64
+@@ -28,8 +28,8 @@
+ MULTILIB_OPTIONS    := m64/m32
+ MULTILIB_DIRNAMES   := 64 32
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.cc
+ 	$(COMPILE) $<
+diff --git a/gcc/config/rs6000/t-linux64bele b/gcc/config/rs6000/t-linux64bele
+index 97c1ee6fb4d..08d72639cb6 100644
+--- a/gcc/config/rs6000/t-linux64bele
+++ b/gcc/config/rs6000/t-linux64bele
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mlittle
+ MULTILIB_DIRNAMES   += le
+-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+diff --git a/gcc/config/rs6000/t-linux64lebe b/gcc/config/rs6000/t-linux64lebe
+index 2e63bdb9fc9..c6e1c5db65d 100644
+--- a/gcc/config/rs6000/t-linux64lebe
+++ b/gcc/config/rs6000/t-linux64lebe
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mbig
+ MULTILIB_DIRNAMES   += be
+-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+-- 
+2.41.0
+
@@ -0,0 +1,26 @@
+From 96e7e1e9a899d9bb5fcbdf788bd529d0390c626f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:54 +0000
+Subject: [PATCH 22/35] x86_64: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/i386/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
+index 138956b0962..bc03dab874f 100644
+--- a/gcc/config/i386/t-linux64
+++ b/gcc/config/i386/t-linux64
+@@ -33,6 +33,6 @@
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+ MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
+-- 
+2.41.0
+
@@ -0,0 +1,76 @@
+From b26224acf342eacb33491f6ea0da1faf73d35715 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Mon, 3 Jan 2022 07:14:48 +0100
+Subject: [PATCH 23/35] riscv: disable multilib support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From the musl wiki [1]:
+
+	musl does not support sharing an include directory between archs
+	[…], and thus is not compatible with GCC-style multilib. It is
+	recommended that distributions build GCC with multilib disabled,
+	and use library directories named lib, not lib64 or lib32.
+
+For this reason, we patch existing GCC configuration files (gcc/config)
+to pin MULTILIB_OSDIRNAMES to lib, there is also a corresponding GCC
+upstream bug about this issue [2]. Avoiding the use of lib64 and lib32
+directories is a bit more difficult on the RISC-V architecture. This is
+due to the fact that the default RISC-V configuration does not only use
+the lib64 and lib32 directories but also subdirectories within these
+directories for different RISC-V ABIs (e.g. lp64d, lp64, …) [3].
+
+This patch aligns the RISC-V configuration with other architectures by
+pinning MULTILIB_OSDIRNAMES to lib for rv64gc (our default RISC-V
+-march). Furthermore, this patch removes the ABI-specific startfile
+prefix spec. Since both of these impact the default LIBRARY_PATH [4]
+this patch thereby aligns the default RISC-V LIBRARY_PATH with that from
+other Alpine architectures and thereby fixes #13369 [5].
+
+Incidentally, this also fixes gccgo on riscv64, as without this patch
+gccgo is otherwise not able to find the *.gox files for the Go standard
+library.
+
+[1]: https://wiki.musl-libc.org/guidelines-for-distributions.html#Multilib/multi_arch
+[2]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90077
+[3]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103889#c14
+[4]: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.c;h=d4c8746b0aa322286decf92aa72a12f0a393b655;hb=HEAD#l9122
+[5]: https://gitlab.alpinelinux.org/alpine/aports/-/issues/13369
+---
+ gcc/config/riscv/linux.h | 8 --------
+ gcc/config/riscv/t-linux | 7 +++++--
+ 2 files changed, 5 insertions(+), 10 deletions(-)
+
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index f8c2c351e5a..8d9881eadeb 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -60,11 +60,3 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{rdynamic:-export-dynamic} \
+ 	-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}}"
+-
+-#define STARTFILE_PREFIX_SPEC 			\
+-   "/lib" XLEN_SPEC "/" ABI_SPEC "/ "		\
+-   "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ "	\
+-   "/lib/ "					\
+-   "/usr/lib/ "
+-
+-#define RISCV_USE_CUSTOMISED_MULTI_LIB select_by_abi
+diff --git a/gcc/config/riscv/t-linux b/gcc/config/riscv/t-linux
+index 216d2776a18..1a8a863853e 100644
+--- a/gcc/config/riscv/t-linux
+++ b/gcc/config/riscv/t-linux
+@@ -1,3 +1,6 @@
+-# Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
+-MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
+MULTILIB_OPTIONS := march=rv64gc
+MULTILIB_DIRNAMES := rv64gc
+
+MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib,$(MULTILIB_DIRNAMES)))
+ MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
+MULTILIB_MATCHES := march?rv64gc=march?rv64imafdc
+-- 
+2.41.0
+
@@ -0,0 +1,51 @@
+From a72e0613f79f6b6867819317accb7a714031a08c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:05:41 +0000
+Subject: [PATCH 24/35] always build libgcc_eh.a
+
+highly inspired by:
+  http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch
+---
+ libgcc/Makefile.in | 11 ++++++-----
+ 1 file changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
+index 6c4dc79ab71..023cede18a7 100644
+--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
+@@ -960,8 +960,9 @@ ifneq ($(LIBUNWIND),)
+ all: libunwind.a
+ endif
+ 
+all: libgcc_eh.a
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
+all: libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
+@@ -1163,10 +1164,6 @@ install-libunwind:
+ install-shared:
+ 	$(mkinstalldirs) $(DESTDIR)$(inst_libdir)
+ 
+-	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+-	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-
+ 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
+@@ -1183,6 +1180,10 @@ ifeq ($(enable_gcov),yes)
+ 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a
+ endif
+ 
+	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+
+ 	parts="$(INSTALL_PARTS)";				\
+ 	for file in $$parts; do					\
+ 	  rm -f $(DESTDIR)$(inst_libdir)/$$file;		\
+-- 
+2.41.0
+
@@ -0,0 +1,135 @@
+From 3ee8cbc1cad261b30d4a7a66d31496d5f243ce2f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:06:30 +0000
+Subject: [PATCH 25/35] ada: libgnarl compatibility for musl
+
+---
+ gcc/ada/libgnarl/s-osinte__linux.ads | 11 ------
+ gcc/ada/libgnarl/s-taprop__linux.adb | 53 ++--------------------------
+ 2 files changed, 3 insertions(+), 61 deletions(-)
+
+diff --git a/gcc/ada/libgnarl/s-osinte__linux.ads b/gcc/ada/libgnarl/s-osinte__linux.ads
+index a5e645d334d..32165347071 100644
+--- a/gcc/ada/libgnarl/s-osinte__linux.ads
+++ b/gcc/ada/libgnarl/s-osinte__linux.ads
+@@ -403,12 +403,6 @@ package System.OS_Interface is
+    PTHREAD_RWLOCK_PREFER_WRITER_NP              : constant := 1;
+    PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP : constant := 2;
+ 
+-   function pthread_rwlockattr_setkind_np
+-     (attr : access pthread_rwlockattr_t;
+-      pref : int) return int;
+-   pragma Import
+-     (C, pthread_rwlockattr_setkind_np, "pthread_rwlockattr_setkind_np");
+-
+    function pthread_rwlock_init
+      (mutex : access pthread_rwlock_t;
+       attr  : access pthread_rwlockattr_t) return int;
+@@ -470,11 +464,6 @@ package System.OS_Interface is
+       protocol : int) return int;
+    pragma Import (C, pthread_mutexattr_setprotocol);
+ 
+-   function pthread_mutexattr_setprioceiling
+-     (attr        : access pthread_mutexattr_t;
+-      prioceiling : int) return int;
+-   pragma Import (C, pthread_mutexattr_setprioceiling);
+-
+    type struct_sched_param is record
+       sched_priority : int;  --  scheduling priority
+    end record;
+diff --git a/gcc/ada/libgnarl/s-taprop__linux.adb b/gcc/ada/libgnarl/s-taprop__linux.adb
+index 821ceef30e4..ae95b58e01e 100644
+--- a/gcc/ada/libgnarl/s-taprop__linux.adb
+++ b/gcc/ada/libgnarl/s-taprop__linux.adb
+@@ -198,9 +198,6 @@ package body System.Task_Primitives.Operations is
+    pragma Import
+      (C, GNAT_pthread_condattr_setup, "__gnat_pthread_condattr_setup");
+ 
+-   function GNAT_has_cap_sys_nice return C.int;
+-   pragma Import
+-     (C, GNAT_has_cap_sys_nice, "__gnat_has_cap_sys_nice");
+    --  We do not have pragma Linker_Options ("-lcap"); here, because this
+    --  library is not present on many Linux systems. 'libcap' is the Linux
+    --  "capabilities" library, called by __gnat_has_cap_sys_nice.
+@@ -210,38 +207,6 @@ package body System.Task_Primitives.Operations is
+    --  Convert Ada priority to Linux priority. Priorities are 1 .. 99 on
+    --  GNU/Linux, so we map 0 .. 98 to 1 .. 99.
+ 
+-   function Get_Ceiling_Support return Boolean;
+-   --  Get the value of the Ceiling_Support constant (see below).
+-   --  Note well: If this function or related code is modified, it should be
+-   --  tested by hand, because automated testing doesn't exercise it.
+-
+-   -------------------------
+-   -- Get_Ceiling_Support --
+-   -------------------------
+-
+-   function Get_Ceiling_Support return Boolean is
+-      Ceiling_Support : Boolean := False;
+-   begin
+-      if Locking_Policy /= 'C' then
+-         return False;
+-      end if;
+-
+-      declare
+-         function geteuid return Integer;
+-         pragma Import (C, geteuid, "geteuid");
+-         Superuser : constant Boolean := geteuid = 0;
+-         Has_Cap : constant C.int := GNAT_has_cap_sys_nice;
+-         pragma Assert (Has_Cap in 0 | 1);
+-      begin
+-         Ceiling_Support := Superuser or else Has_Cap = 1;
+-      end;
+-
+-      return Ceiling_Support;
+-   end Get_Ceiling_Support;
+-
+-   pragma Warnings (Off, "non-preelaborable call not allowed*");
+-   Ceiling_Support : constant Boolean := Get_Ceiling_Support;
+-   pragma Warnings (On, "non-preelaborable call not allowed*");
+    --  True if the locking policy is Ceiling_Locking, and the current process
+    --  has permission to use this policy. The process has permission if it is
+    --  running as 'root', or if the capability was set by the setcap command,
+@@ -344,7 +309,9 @@ package body System.Task_Primitives.Operations is
+    -- Init_Mutex --
+    ----------------
+ 
+   pragma Warnings (Off, "formal parameter * is not referenced");
+    function Init_Mutex (L : RTS_Lock_Ptr; Prio : Any_Priority) return C.int is
+   pragma Warnings (On, "formal parameter * is not referenced");
+       Mutex_Attr : aliased pthread_mutexattr_t;
+       Result, Result_2 : C.int;
+ 
+@@ -356,16 +323,7 @@ package body System.Task_Primitives.Operations is
+          return Result;
+       end if;
+ 
+-      if Ceiling_Support then
+-         Result := pthread_mutexattr_setprotocol
+-           (Mutex_Attr'Access, PTHREAD_PRIO_PROTECT);
+-         pragma Assert (Result = 0);
+-
+-         Result := pthread_mutexattr_setprioceiling
+-           (Mutex_Attr'Access, Prio_To_Linux_Prio (Prio));
+-         pragma Assert (Result = 0);
+-
+-      elsif Locking_Policy = 'I' then
+      if Locking_Policy = 'I' then
+          Result := pthread_mutexattr_setprotocol
+            (Mutex_Attr'Access, PTHREAD_PRIO_INHERIT);
+          pragma Assert (Result = 0);
+@@ -405,11 +363,6 @@ package body System.Task_Primitives.Operations is
+             Result := pthread_rwlockattr_init (RWlock_Attr'Access);
+             pragma Assert (Result = 0);
+ 
+-            Result := pthread_rwlockattr_setkind_np
+-              (RWlock_Attr'Access,
+-               PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+-            pragma Assert (Result = 0);
+-
+             Result := pthread_rwlock_init (L.RW'Access, RWlock_Attr'Access);
+ 
+             pragma Assert (Result in 0 | ENOMEM);
+-- 
+2.41.0
+
@@ -0,0 +1,247 @@
+From 3df4788c79c7429b196c7b284af2b4cf9a4b4f8d Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:07:48 +0000
+Subject: [PATCH 26/35] ada: musl support fixes
+
+---
+ gcc/ada/Makefile.rtl | 16 ++++++++--------
+ gcc/ada/adaint.c     | 34 +++++++++++++++++++---------------
+ gcc/ada/adaint.h     | 10 ++++------
+ gcc/ada/terminals.c  |  8 ++++----
+ 4 files changed, 35 insertions(+), 33 deletions(-)
+
+diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
+index 32cbdb692..463028fbe 100644
+--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
+@@ -1558,7 +1558,7 @@ ifeq ($(strip $(filter-out %86 linux%,$(target_cpu) $(target_os))),)
+   s-intman.adb<libgnarl/s-intman__posix.adb \
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   a-exetim.adb<libgnarl/a-exetim__posix.adb \
+   a-exetim.ads<libgnarl/a-exetim__default.ads \
+   s-linux.ads<libgnarl/s-linux.ads \
+@@ -2144,7 +2144,7 @@ ifeq ($(strip $(filter-out loongarch% linux%,$(target_cpu) $(target_os))),)
+   g-sercom.adb<libgnat/g-sercom__linux.adb \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   system.ads<libgnat/system-linux-loongarch.ads
+@@ -2232,7 +2232,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+   s-tasinf.adb<libgnarl/s-tasinf__linux.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   system.ads<libgnat/system-linux-ppc.ads
+@@ -2267,7 +2267,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+ endif
+ 
+ # ARM linux, GNU eabi
+-ifeq ($(strip $(filter-out arm% linux-gnueabi%,$(target_cpu) $(target_os))),)
+ifeq ($(strip $(filter-out arm% linux-gnueabi% linux-musleabi% linux-muslgnueabi%,$(target_cpu) $(target_os))),)
+   LIBGNAT_TARGET_PAIRS = \
+   a-intnam.ads<libgnarl/a-intnam__linux.ads \
+   s-inmaop.adb<libgnarl/s-inmaop__posix.adb \
+@@ -2311,7 +2311,7 @@ ifeq ($(strip $(filter-out aarch64% linux%,$(target_cpu) $(target_os))),)
+   s-intman.adb<libgnarl/s-intman__posix.adb \
+   s-linux.ads<libgnarl/s-linux.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   s-mudido.adb<libgnarl/s-mudido__affinity.adb \
+   s-osinte.ads<libgnarl/s-osinte__linux.ads \
+   s-osinte.adb<libgnarl/s-osinte__posix.adb \
+@@ -2488,7 +2488,7 @@ ifeq ($(strip $(filter-out %ia64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix-noaltstack.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+@@ -2592,7 +2592,7 @@ ifeq ($(strip $(filter-out %x86_64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(X86_64_TARGET_PAIRS) \
+   $(SIMD_PATH_TARGET_PAIRS) \
+@@ -2637,7 +2637,7 @@ ifeq ($(strip $(filter-out %x32 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(X86_64_TARGET_PAIRS) \
+   $(SIMD_PATH_TARGET_PAIRS) \
+diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
+index 74aa3c412..ef6118f37 100644
+--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
+@@ -94,6 +94,11 @@
+ #include <sys/param.h>
+ #include <sys/pstat.h>
+ #endif
+ 
+#if defined (linux) || defined(__linux__)
+#define _GNU_SOURCE 1
+#include <sched.h>
+#endif
+ 
+ #ifdef __PikeOS__
+ #define __BSD_VISIBLE 1
+@@ -3465,7 +3470,6 @@ __gnat_lwp_self (void)
+ #endif
+ 
+ #if defined (__linux__)
+-#include <sched.h>
+ 
+ /* glibc versions earlier than 2.7 do not define the routines to handle
+    dynamically allocated CPU sets. For these targets, we use the static
+@@ -3475,7 +3479,7 @@ __gnat_lwp_self (void)
+ 
+ /* Dynamic cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count)
+ {
+   return CPU_ALLOC (count);
+@@ -3488,33 +3492,33 @@ __gnat_cpu_alloc_size (size_t count)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+-  CPU_FREE (set);
+  CPU_FREE ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count, cpu_set_t *set)
+__gnat_cpu_zero (size_t count, void *set)
+ {
+-  CPU_ZERO_S (count, set);
+  CPU_ZERO_S (count, (cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET_S (cpu - 1, count, set);
+  CPU_SET_S (cpu - 1, count, (cpu_set_t *) set);
+ }
+ 
+ #else /* !CPU_ALLOC */
+ 
+ /* Static cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED)
+ {
+-  return (cpu_set_t *) xmalloc (sizeof (cpu_set_t));
+  return xmalloc (sizeof (cpu_set_t));
+ }
+ 
+ size_t
+@@ -3524,23 +3528,23 @@ __gnat_cpu_alloc_size (size_t count ATTRIBUTE_UNUSED)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+   free (set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+-  CPU_ZERO (set);
+  CPU_ZERO ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET (cpu - 1, set);
+  CPU_SET (cpu - 1, (cpu_set_t *) set);
+ }
+ #endif /* !CPU_ALLOC */
+ #endif /* __linux__ */
+diff --git a/gcc/ada/adaint.h b/gcc/ada/adaint.h
+index 0cbfd0e15..f97ed905b 100644
+--- a/gcc/ada/adaint.h
+++ b/gcc/ada/adaint.h
+@@ -319,13 +319,11 @@ extern void   *__gnat_lwp_self			   (void);
+ 
+ /* Routines for interface to required CPU set primitives */
+ 
+-#include <sched.h>
+-
+-extern cpu_set_t *__gnat_cpu_alloc                 (size_t);
+extern void * __gnat_cpu_alloc                 (size_t);
+ extern size_t __gnat_cpu_alloc_size                (size_t);
+-extern void   __gnat_cpu_free                  (cpu_set_t *);
+-extern void   __gnat_cpu_zero                      (size_t, cpu_set_t *);
+-extern void   __gnat_cpu_set                       (int, size_t, cpu_set_t *);
+extern void   __gnat_cpu_free                  (void *);
+extern void   __gnat_cpu_zero                      (size_t, void *);
+extern void   __gnat_cpu_set                       (int, size_t, void *);
+ #endif
+ 
+ #if defined (_WIN32)
+diff --git a/gcc/ada/terminals.c b/gcc/ada/terminals.c
+index 05af82c27..626ac35bc 100644
+--- a/gcc/ada/terminals.c
+++ b/gcc/ada/terminals.c
+@@ -1134,7 +1134,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ /* POSIX does not specify how to open the master side of a terminal.Several
+    methods are available (system specific):
+       1- using a cloning device (USE_CLONE_DEVICE)
+-      2- getpt                  (USE_GETPT)
+      2- posix_openpt           (USE_POSIX_OPENPT)
+       3- openpty                (USE_OPENPTY)
+ 
+    When using the cloning device method, the macro USE_CLONE_DEVICE should
+@@ -1148,7 +1148,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ #if defined (__APPLE__) || defined (BSD)
+ #define USE_OPENPTY
+ #elif defined (__linux__)
+-#define USE_GETPT
+#define USE_POSIX_OPENPT
+ #elif defined (__sun__)
+ #define USE_CLONE_DEVICE "/dev/ptmx"
+ #elif defined (_AIX)
+@@ -1197,8 +1197,8 @@ allocate_pty_desc (pty_desc **desc) {
+    int  master_fd   = -1;
+    char *slave_name = NULL;
+ 
+-#ifdef USE_GETPT
+-  master_fd = getpt ();
+#if defined(USE_POSIX_OPENPT)
+  master_fd = posix_openpt(O_RDWR | O_NOCTTY);
+ #elif defined (USE_OPENPTY)
+   status = openpty (&master_fd, &slave_fd, NULL, NULL, NULL);
+ #elif defined (USE_CLONE_DEVICE)
@@ -0,0 +1,256 @@
+From 7b50823d8a4131e5a55d2499a0f5a52b3d91eed2 Mon Sep 17 00:00:00 2001
+From: Drew DeVault <sir@cmpwn.com>
+Date: Wed, 9 Dec 2020 07:42:06 +0000
+Subject: [PATCH 27/35] configure: Add --enable-autolink-libatomic, use in
+ LINK_GCC_C_SEQUENCE_SPEC [PR81358]
+
+This fixes issues with RISC-V.
+---
+ Makefile.in           |  1 +
+ gcc/config.in         |  6 ++++++
+ gcc/config/gnu-user.h | 12 +++++++++++-
+ gcc/configure         | 31 ++++++++++++++++++++++++++++++-
+ gcc/configure.ac      | 21 +++++++++++++++++++++
+ gcc/doc/install.texi  |  8 ++++++++
+ gcc/doc/tm.texi       |  8 +++++++-
+ gcc/doc/tm.texi.in    |  8 +++++++-
+ gcc/gcc.cc            | 12 +++++++++++-
+ 9 files changed, 102 insertions(+), 5 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 6ff2b3f9925..394b105b271 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -235,6 +235,7 @@ HOST_EXPORTS = \
+ 	RANLIB_FOR_TARGET="$(RANLIB_FOR_TARGET)"; export RANLIB_FOR_TARGET; \
+ 	READELF_FOR_TARGET="$(READELF_FOR_TARGET)"; export READELF_FOR_TARGET; \
+ 	TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
+	TARGET_CONFIGDIRS="$(TARGET_CONFIGDIRS)"; export TARGET_CONFIGDIRS; \
+ 	HOST_LIBS="$(STAGE1_LIBS)"; export HOST_LIBS; \
+ 	GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ 	GMPINC="$(HOST_GMPINC)"; export GMPINC; \
+diff --git a/gcc/config.in b/gcc/config.in
+index 0679fbbf4c6..ee81139b385 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -118,6 +118,12 @@
+ #endif
+ 
+ 
+/* Define if libatomic should always be linked. */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_AUTOLINK_LIBATOMIC
+#endif
+
+
+ /* Define to 1 to specify that we are using the BID decimal floating point
+    format instead of DPD */
+ #ifndef USED_FOR_TARGET
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index b26b17f2f2a..3f64ea46180 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -109,8 +109,18 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ #define GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC \
+-  "%{static|static-pie:--start-group} %G %{!nolibc:%L} \
+  "%{static|static-pie:--start-group} %G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L} \
+    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
+ 
+ #undef LINK_GCC_C_SEQUENCE_SPEC
+diff --git a/gcc/configure b/gcc/configure
+index e59cbee1767..787c35d4e25 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -984,6 +984,7 @@ with_changes_root_url
+ enable_languages
+ with_multilib_list
+ with_multilib_generator
+enable_autolink_libatomic
+ with_zstd
+ with_zstd_include
+ with_zstd_lib
+@@ -1713,6 +1714,9 @@ Optional Features:
+   --disable-shared        don't provide a shared libgcc
+   --disable-gcov          don't provide libgcov and related host tools
+   --enable-languages=LIST specify which front-ends to build
+  --enable-autolink-libatomic
+                          enable automatic linking of libatomic (ignored if
+                          not built)
+   --disable-rpath         do not hardcode runtime library paths
+   --enable-sjlj-exceptions
+                           arrange to use setjmp/longjmp exception handling
+@@ -8329,7 +8333,6 @@ else
+ fi
+ 
+ 
+-
+ # Check whether --with-multilib-generator was given.
+ if test "${with_multilib_generator+set}" = set; then :
+   withval=$with_multilib_generator; :
+@@ -8337,6 +8340,32 @@ else
+   with_multilib_generator=default
+ fi
+ 
+# If libatomic is available, whether it should be linked automatically
+# Check whether --enable-autolink-libatomic was given.
+if test "${enable_autolink_libatomic+set}" = set; then :
+  enableval=$enable_autolink_libatomic;
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) as_fn_error $? "'$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'." "$LINENO" 5 ;;
+  esac
+
+else
+  enable_autolink_libatomic=''
+fi
+
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+
+$as_echo "#define ENABLE_AUTOLINK_LIBATOMIC 1" >>confdefs.h
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&5
+$as_echo "$as_me: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&2;}
+  fi
+fi
+
+ 
+ # -------------------------
+ # Checks for other programs
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 57268319de1..56bcaa87620 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -1199,6 +1199,27 @@ AC_ARG_WITH(multilib-generator,
+ :,
+ with_multilib_generator=default)
+ 
+# If libatomic is available, whether it should be linked automatically
+AC_ARG_ENABLE(autolink-libatomic,
+[AS_HELP_STRING([--enable-autolink-libatomic],
+		[enable automatic linking of libatomic (ignored if not built)])],
+[
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) AC_MSG_ERROR(['$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'.]) ;;
+  esac
+], [enable_autolink_libatomic=''])
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+    AC_DEFINE(ENABLE_AUTOLINK_LIBATOMIC, 1,
+	[Define if libatomic should always be linked.])
+  else
+    AC_MSG_WARN([libatomic is not build for this target, --enable-autolink-libatomic ignored])
+  fi
+fi
+
+ # -------------------------
+ # Checks for other programs
+ # -------------------------
+diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
+index b30d3691fe6..ccc8e5dbb00 100644
+--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
+@@ -2377,6 +2377,14 @@ files, but these changed header paths may conflict with some compilation
+ environments.  Enabled by default, and may be disabled using
+ @option{--disable-canonical-system-headers}.
+ 
+@item --enable-autolink-libatomic
+@itemx --disable-autolink-libatomic
+Tell GCC that it should automatically link libatomic; if supported by
+the linker, the file is only linked as needed. This flag is ignored
+when libatomic is not built. Note that this conigure flag is in particular
+useful when building an offloading-target compiler; as for those, a
+user had to specify @code{-foffload=target=-latomic} otherwise.
+
+ @item --with-glibc-version=@var{major}.@var{minor}
+ Tell GCC that when the GNU C Library (glibc) is used on the target it
+ will be version @var{major}.@var{minor} or later.  Normally this can
+diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
+index a660e33739b..6183c407a2b 100644
+--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
+index f7ab5d48a63..281540aba68 100644
+--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 59390fd39d6..dae1dd4cf79 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -974,13 +974,23 @@ proper position among the other output files.  */
+ # define ASM_DEBUG_OPTION_SPEC ""
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ /* Here is the spec for running the linker, after compiling all files.  */
+ 
+ /* This is overridable by the target in case they need to specify the
+    -lgcc and -lc order specially, yet not require them to override all
+    of LINK_COMMAND_SPEC.  */
+ #ifndef LINK_GCC_C_SEQUENCE_SPEC
+-#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L %G}"
+ #endif
+ 
+ #ifdef ENABLE_DEFAULT_SSP
+-- 
+2.41.0
+
@@ -0,0 +1,57 @@
+From 5bbbd320e54ab5341cfba83e8af98685131caba1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sun, 29 Aug 2021 12:23:34 +0200
+Subject: [PATCH 28/35] configure: fix detection of atomic builtins in
+ libatomic configure script
+
+Alpine's --enable-autolink-libatomic (which is enabled for riscv64 by
+default) causes the libatomic configure script to incorrectly detect
+which builtins are available on riscv64. This then causes incorrect code
+generation for libatomic since it assumes compiler builtins to be
+available which are not actually available on riscv64.
+
+This commit fixes this issue by disabling linking of libatomic configure
+test code entirely, thereby preventing linking against libatomic.
+
+See:
+
+* https://gitlab.alpinelinux.org/alpine/aports/-/issues/12948
+* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c6
+---
+ libatomic/configure.tgt | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt
+index a92ae9e8309..90b579ca4d8 100644
+--- a/libatomic/configure.tgt
+++ b/libatomic/configure.tgt
+@@ -30,6 +30,26 @@
+ # on ${target_cpu}.  For example to allow proper use of multilibs.
+ configure_tgt_pre_target_cpu_XCFLAGS="${XCFLAGS}"
+ 
+# The libatomic configure script performs several checks to determine
+# whether builtins for atomic operations are available. When compiling
+# with --enable-autolink-libatomic the test code compiled by the
+# configure script is also linked against libatomic. This causes it
+# to think that builtins are available, even if there are not, since
+# the tested symbols are provided by libatomic.
+#
+# This is a hack to ensure that we don't link against libatomic by not
+# linking any configure test code at all when --enable-autolink-libatomic
+# is given.
+#
+# See:
+#
+#   * https://gitlab.alpinelinux.org/alpine/aports/-/issues/12817
+#   * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c4
+#
+if test x$enable_autolink_libatomic = xyes; then
+	gcc_no_link=yes
+fi
+
+ case "${target_cpu}" in
+   alpha*)
+ 	# fenv.c needs this option to generate inexact exceptions.
+-- 
+2.41.0
+
@@ -0,0 +1,27 @@
+From 430c701a3cefbe09a9c7c8a2f5bbe957f9b2ecb2 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Thu, 30 Jun 2022 16:44:51 +0000
+Subject: [PATCH 29/35] libstdc++: do not throw exceptions for non-C locales on
+ musl targets
+
+---
+ libstdc++-v3/config/locale/generic/c_locale.cc | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/libstdc++-v3/config/locale/generic/c_locale.cc b/libstdc++-v3/config/locale/generic/c_locale.cc
+index 8849d78fdfa..aff467f98fe 100644
+--- a/libstdc++-v3/config/locale/generic/c_locale.cc
+++ b/libstdc++-v3/config/locale/generic/c_locale.cc
+@@ -242,9 +242,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+     // Currently, the generic model only supports the "C" locale.
+     // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html
+     __cloc = 0;
+-    if (strcmp(__s, "C"))
+-      __throw_runtime_error(__N("locale::facet::_S_create_c_locale "
+-			    "name not valid"));
+   }
+ 
+   void
+-- 
+2.41.0
+
@@ -0,0 +1,27 @@
+From 05f0043755f341a2ff4f845379327076b3e0203d Mon Sep 17 00:00:00 2001
+From: Mathias LANG <pro.mathias.lang@gmail.com>
+Date: Mon, 17 Jan 2022 03:49:21 +0000
+Subject: [PATCH 30/35] gdc: unconditionally link libgphobos against
+ libucontext
+
+ref: alpine/aports#13422
+---
+ Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 394b105b271..bc4a77fc300 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -52809,7 +52809,7 @@ configure-target-libphobos:
+ 	esac; \
+ 	module_srcdir=libphobos; \
+ 	rm -f no-such-file || : ; \
+-	CONFIG_SITE=no-such-file $(SHELL) \
+	CONFIG_SITE=no-such-file LIBS="-lucontext $$LIBS" $(SHELL) \
+ 	  $$s/$$module_srcdir/configure \
+ 	  --srcdir=$${topdir}/$$module_srcdir \
+ 	  $(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \
+-- 
+2.41.0
+
@@ -0,0 +1,54 @@
+From 0b89a74fbf77ae6917f043c79cd03db0d6ef0212 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sat, 16 Jul 2022 09:21:11 +0200
+Subject: [PATCH 31/35] druntime: link against libucontext on all platforms
+
+On musl-based Linux distributions, swapcontext etc. are not provided by
+musl but instead by libucontext. Hence, we _always_ need to link against
+an external library for these functions.
+---
+ libphobos/configure                | 8 --------
+ libphobos/m4/druntime/libraries.m4 | 8 --------
+ 2 files changed, 16 deletions(-)
+
+diff --git a/libphobos/configure b/libphobos/configure
+index 925c53c5f5e..60c2a0c11c6 100755
+--- a/libphobos/configure
+++ b/libphobos/configure
+@@ -15216,14 +15216,6 @@ fi
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[34567]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing swapcontext" >&5
+ $as_echo_n "checking for library containing swapcontext... " >&6; }
+diff --git a/libphobos/m4/druntime/libraries.m4 b/libphobos/m4/druntime/libraries.m4
+index 45a56f6f76a..fef6e890b1e 100644
+--- a/libphobos/m4/druntime/libraries.m4
+++ b/libphobos/m4/druntime/libraries.m4
+@@ -220,14 +220,6 @@ AC_DEFUN([DRUNTIME_LIBRARIES_UCONTEXT],
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[[34567]]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     AC_SEARCH_LIBS([swapcontext], [c ucontext], [],
+       AC_MSG_ERROR([swapcontext required but not found]))
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From eeec799f43fbd0bfffc13594585b39d708972511 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Tue, 19 Jul 2022 14:54:07 +0200
+Subject: [PATCH 32/35] libgnat: time_t is always 64-bit on musl libc
+
+---
+ gcc/ada/libgnat/s-parame.ads | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/ada/libgnat/s-parame.ads b/gcc/ada/libgnat/s-parame.ads
+index 3d6e345a1ba..cfe0b4d3ca6 100644
+--- a/gcc/ada/libgnat/s-parame.ads
+++ b/gcc/ada/libgnat/s-parame.ads
+@@ -102,7 +102,7 @@ package System.Parameters is
+    -- Characteristics of time_t type --
+    ------------------------------------
+ 
+-   time_t_bits : constant := Long_Integer'Size;
+   time_t_bits : constant := Long_Long_Integer'Size;
+    --  Number of bits in type time_t
+ 
+    ----------------------------------------------
+-- 
+2.41.0
+
@@ -0,0 +1,44 @@
+From b71d21b87e6946c763edad5e420bf22d8a453077 Mon Sep 17 00:00:00 2001
+From: psykose <alice@ayaya.dev>
+Date: Mon, 29 May 2023 15:33:11 +0000
+Subject: [PATCH 33/35] libphobos: do not use LFS64 symbols
+
+musl does not have these since 1.2.4, we can't use the compat interfaces.
+---
+ libphobos/libdruntime/core/sys/posix/config.d   | 2 +-
+ libphobos/libdruntime/core/sys/posix/sys/mman.d | 6 +-----
+ 2 files changed, 2 insertions(+), 6 deletions(-)
+
+diff --git a/libphobos/libdruntime/core/sys/posix/config.d b/libphobos/libdruntime/core/sys/posix/config.d
+index ae6752f220e..6b80d1ff0e6 100644
+--- a/libphobos/libdruntime/core/sys/posix/config.d
+++ b/libphobos/libdruntime/core/sys/posix/config.d
+@@ -88,7 +88,7 @@ else version (CRuntime_Musl)
+     enum __REDIRECT          = false;
+ 
+     // Those three are irrelevant for Musl as it always uses 64 bits off_t
+-    enum __USE_FILE_OFFSET64 = _FILE_OFFSET_BITS == 64;
+    enum __USE_FILE_OFFSET64 = false;
+     enum __USE_LARGEFILE     = __USE_FILE_OFFSET64 && !__REDIRECT;
+     enum __USE_LARGEFILE64   = __USE_FILE_OFFSET64 && !__REDIRECT;
+ 
+diff --git a/libphobos/libdruntime/core/sys/posix/sys/mman.d b/libphobos/libdruntime/core/sys/posix/sys/mman.d
+index 0d3d517d69a..323aa0af72d 100644
+--- a/libphobos/libdruntime/core/sys/posix/sys/mman.d
+++ b/libphobos/libdruntime/core/sys/posix/sys/mman.d
+@@ -293,11 +293,7 @@ else version (CRuntime_Bionic)
+ }
+ else version (CRuntime_Musl)
+ {
+-    static if (__USE_LARGEFILE64) void* mmap64(void*, size_t, int, int, int, off_t);
+-    static if (__USE_FILE_OFFSET64)
+-        alias mmap = mmap64;
+-    else
+-        void* mmap(void*, size_t, int, int, int, off_t);
+    void* mmap(void*, size_t, int, int, int, off_t);
+     int munmap(void*, size_t);
+ }
+ else version (CRuntime_UClibc)
+-- 
+2.41.0
+
@@ -0,0 +1,195 @@
+From 4bfcb35bc43d3e3b7510620362d7c28d9e4c17ca Mon Sep 17 00:00:00 2001
+From: psykose <alice@ayaya.dev>
+Date: Mon, 10 Jul 2023 23:23:29 +0000
+Subject: [PATCH 34/35] libgo: fix lfs64 use
+
+---
+ .../go/internal/syscall/unix/at_largefile.go  |  2 +-
+ libgo/go/os/dir_largefile.go                  |  2 +-
+ libgo/go/syscall/libcall_glibc.go             |  2 +-
+ libgo/go/syscall/libcall_linux.go             |  4 +--
+ libgo/go/syscall/libcall_posix_largefile.go   | 26 +++++++++----------
+ libgo/runtime/go-varargs.c                    |  2 +-
+ libgo/sysinfo.c                               |  9 +++----
+ 7 files changed, 22 insertions(+), 25 deletions(-)
+
+diff --git a/libgo/go/internal/syscall/unix/at_largefile.go b/libgo/go/internal/syscall/unix/at_largefile.go
+index 82e0dcfd074..16151ecad1b 100644
+--- a/libgo/go/internal/syscall/unix/at_largefile.go
+++ b/libgo/go/internal/syscall/unix/at_largefile.go
+@@ -10,5 +10,5 @@ import (
+ 	"syscall"
+ )
+ 
+-//extern fstatat64
+//extern fstatat
+ func fstatat(int32, *byte, *syscall.Stat_t, int32) int32
+diff --git a/libgo/go/os/dir_largefile.go b/libgo/go/os/dir_largefile.go
+index 1fc5ee0771f..0c6dffe1a75 100644
+--- a/libgo/go/os/dir_largefile.go
+++ b/libgo/go/os/dir_largefile.go
+@@ -11,5 +11,5 @@ package os
+ 
+ import "syscall"
+ 
+-//extern readdir64
+//extern readdir
+ func libc_readdir(*syscall.DIR) *syscall.Dirent
+diff --git a/libgo/go/syscall/libcall_glibc.go b/libgo/go/syscall/libcall_glibc.go
+index 5c1ec483c75..5a1245ed44b 100644
+--- a/libgo/go/syscall/libcall_glibc.go
+++ b/libgo/go/syscall/libcall_glibc.go
+@@ -114,7 +114,7 @@ func Pipe2(p []int, flags int) (err error) {
+ }
+ 
+ //sys	sendfile(outfd int, infd int, offset *Offset_t, count int) (written int, err error)
+-//sendfile64(outfd _C_int, infd _C_int, offset *Offset_t, count Size_t) Ssize_t
+//sendfile(outfd _C_int, infd _C_int, offset *Offset_t, count Size_t) Ssize_t
+ 
+ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+ 	if race.Enabled {
+diff --git a/libgo/go/syscall/libcall_linux.go b/libgo/go/syscall/libcall_linux.go
+index 03ca7261b59..ad21fd0b3ac 100644
+--- a/libgo/go/syscall/libcall_linux.go
+++ b/libgo/go/syscall/libcall_linux.go
+@@ -158,7 +158,7 @@ func Reboot(cmd int) (err error) {
+ //adjtimex(buf *Timex) _C_int
+ 
+ //sys	Fstatfs(fd int, buf *Statfs_t) (err error)
+-//fstatfs64(fd _C_int, buf *Statfs_t) _C_int
+//fstatfs(fd _C_int, buf *Statfs_t) _C_int
+ 
+ func Gettid() (tid int) {
+ 	r1, _, _ := Syscall(SYS_GETTID, 0, 0, 0)
+@@ -245,7 +245,7 @@ func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n i
+ }
+ 
+ //sys	Statfs(path string, buf *Statfs_t) (err error)
+-//statfs64(path *byte, buf *Statfs_t) _C_int
+//statfs(path *byte, buf *Statfs_t) _C_int
+ 
+ //sysnb	Sysinfo(info *Sysinfo_t) (err error)
+ //sysinfo(info *Sysinfo_t) _C_int
+diff --git a/libgo/go/syscall/libcall_posix_largefile.go b/libgo/go/syscall/libcall_posix_largefile.go
+index f90055bb29a..334212f0af1 100644
+--- a/libgo/go/syscall/libcall_posix_largefile.go
+++ b/libgo/go/syscall/libcall_posix_largefile.go
+@@ -10,40 +10,40 @@
+ package syscall
+ 
+ //sys	Creat(path string, mode uint32) (fd int, err error)
+-//creat64(path *byte, mode Mode_t) _C_int
+//creat(path *byte, mode Mode_t) _C_int
+ 
+ //sys	Fstat(fd int, stat *Stat_t) (err error)
+-//fstat64(fd _C_int, stat *Stat_t) _C_int
+//fstat(fd _C_int, stat *Stat_t) _C_int
+ 
+ //sys	Ftruncate(fd int, length int64) (err error)
+-//ftruncate64(fd _C_int, length Offset_t) _C_int
+//ftruncate(fd _C_int, length Offset_t) _C_int
+ 
+ //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
+-//getrlimit64(resource _C_int, rlim *Rlimit) _C_int
+//getrlimit(resource _C_int, rlim *Rlimit) _C_int
+ 
+ //sys	Lstat(path string, stat *Stat_t) (err error)
+-//lstat64(path *byte, stat *Stat_t) _C_int
+//lstat(path *byte, stat *Stat_t) _C_int
+ 
+ //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+-//mmap64(addr *byte, length Size_t, prot _C_int, flags _C_int, fd _C_int, offset Offset_t) *byte
+//mmap(addr *byte, length Size_t, prot _C_int, flags _C_int, fd _C_int, offset Offset_t) *byte
+ 
+ //sys	Open(path string, mode int, perm uint32) (fd int, err error)
+-//__go_open64(path *byte, mode _C_int, perm Mode_t) _C_int
+//__go_open(path *byte, mode _C_int, perm Mode_t) _C_int
+ 
+ //sys	Pread(fd int, p []byte, offset int64) (n int, err error)
+-//pread64(fd _C_int, buf *byte, count Size_t, offset Offset_t) Ssize_t
+//pread(fd _C_int, buf *byte, count Size_t, offset Offset_t) Ssize_t
+ 
+ //sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
+-//pwrite64(fd _C_int, buf *byte, count Size_t, offset Offset_t) Ssize_t
+//pwrite(fd _C_int, buf *byte, count Size_t, offset Offset_t) Ssize_t
+ 
+ //sys	Seek(fd int, offset int64, whence int) (off int64, err error)
+-//lseek64(fd _C_int, offset Offset_t, whence _C_int) Offset_t
+//lseek(fd _C_int, offset Offset_t, whence _C_int) Offset_t
+ 
+ //sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
+-//setrlimit64(resource int, rlim *Rlimit) _C_int
+//setrlimit(resource int, rlim *Rlimit) _C_int
+ 
+ //sys	Stat(path string, stat *Stat_t) (err error)
+-//stat64(path *byte, stat *Stat_t) _C_int
+//stat(path *byte, stat *Stat_t) _C_int
+ 
+ //sys	Truncate(path string, length int64) (err error)
+-//truncate64(path *byte, length Offset_t) _C_int
+//truncate(path *byte, length Offset_t) _C_int
+diff --git a/libgo/runtime/go-varargs.c b/libgo/runtime/go-varargs.c
+index f84860891e6..7efc9615985 100644
+--- a/libgo/runtime/go-varargs.c
+++ b/libgo/runtime/go-varargs.c
+@@ -84,7 +84,7 @@ __go_ioctl_ptr (int d, int request, void *arg)
+ int
+ __go_open64 (char *path, int mode, mode_t perm)
+ {
+-  return open64 (path, mode, perm);
+  return open (path, mode, perm);
+ }
+ 
+ #endif
+diff --git a/libgo/sysinfo.c b/libgo/sysinfo.c
+index 180f5c31d74..1d717d55c0e 100644
+--- a/libgo/sysinfo.c
+++ b/libgo/sysinfo.c
+@@ -366,7 +366,7 @@ typedef loff_t libgo_loff_t_type;
+ #endif
+ 
+ #if defined(HAVE_OFF64_T)
+-typedef off64_t libgo_off_t_type;
+typedef off_t libgo_off_t_type;
+ #else
+ typedef off_t libgo_off_t_type;
+ #endif
+@@ -398,13 +398,11 @@ typedef off_t libgo_off_t_type;
+ 
+ // From dirent.h
+ SREF(dirent);
+-SREF(dirent64);
+ OTREF(DIR);
+ EREF(DT_UNKNOWN);
+ 
+ // From fcntl.h
+ SREF(flock);
+-SREF(flock64);
+ 
+ // From ffi headers
+ SREF(_ffi_type);
+@@ -485,11 +483,10 @@ EREF(SS_ONSTACK);
+ EREF(SEGV_MAPERR);
+ 
+ // From stat.h
+-SREF(stat64);
+SREF(stat);
+ 
+ // From statfs.h
+ SREF(statfs);
+-SREF(statfs64);
+ 
+ // From sysinfo.h
+ SREF(sysinfo);
+@@ -519,7 +516,7 @@ EREF(PTRACE_PEEKTEXT);
+ 
+ // From sys/resource.h
+ SREF(rusage);
+-SREF(rlimit64);
+SREF(rlimit);
+ EREF(RLIMIT_NOFILE);
+ EREF(PRIO_USER);
+ EREF(RUSAGE_SELF);
+-- 
+2.41.0
+
@@ -0,0 +1,32 @@
+From c4f484f465a32e796ae384aa3f90e79fa218b4e9 Mon Sep 17 00:00:00 2001
+From: Jingyun Hua <huajingyun@loongson.cn>
+Date: Mon, 7 Aug 2023 15:25:58 +0800
+Subject: [PATCH] loongarch disable multilib support
+
+Signed-off-by: Jingyun Hua <huajingyun@loongson.cn>
+---
+ gcc/config/loongarch/t-linux    | 11 +++--------
+ 1 file changed, 3 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/config/loongarch/t-linux b/gcc/config/loongarch/t-linux
+index 23e1fb979..c2753abb8 100644
+--- a/gcc/config/loongarch/t-linux
+++ b/gcc/config/loongarch/t-linux
+@@ -21,11 +21,6 @@ MULTIOSDIR_lp64f := ../lib64/f32$(call if_multiarch,:loongarch64-linux-gnuf32)
+ MULTIOSDIR_lp64s := ../lib64/sf$(call if_multiarch,:loongarch64-linux-gnusf)
+ 
+ # Don't define MULTILIB_OSDIRNAMES if multilib is disabled.
+-ifeq ($(filter LA_DISABLE_MULTILIB,$(tm_defines)),)
+-
+-    MULTILIB_OSDIRNAMES = .=$(MULTIOSDIR_$(mlib_default))
+-    MULTILIB_OSDIRNAMES += mabi.lp64d=$(MULTIOSDIR_lp64d)
+-    MULTILIB_OSDIRNAMES += mabi.lp64f=$(MULTIOSDIR_lp64f)
+-    MULTILIB_OSDIRNAMES += mabi.lp64s=$(MULTIOSDIR_lp64s)
+-
+-endif
+    MULTILIB_OSDIRNAMES =  mabi.lp64d=../lib
+    MULTILIB_OSDIRNAMES += mabi.lp64f=../lib
+    MULTILIB_OSDIRNAMES += mabi.lp64s=../lib
+-- 
+2.41.0
+
@@ -0,0 +1,87 @@
+From: Celeste <cielesti@protonmail.com>
+Date: Mon, 2 Sep 2024 02:54:17 +0000
+Subject: [PATCH] libphobos: add riscv64 and loongarch64 support
+
+Add musl support for these 2 architectures based on fenv.h and signal.h from:
+
+https://git.musl-libc.org/cgit/musl/tree/arch/riscv64/bits?h=v1.2.5
+
+https://git.musl-libc.org/cgit/musl/tree/arch/loongarch64/bits?h=v1.2.5
+---
+ libphobos/libdruntime/core/stdc/fenv.d        | 13 +++++++++++++
+ libphobos/libdruntime/core/sys/posix/signal.d | 10 ++++++++++
+ 2 files changed, 23 insertions(+)
+
+diff --git a/libphobos/libdruntime/core/stdc/fenv.d b/libphobos/libdruntime/core/stdc/fenv.d
+index a7364c0a..5b327e4a 100644
+--- a/libphobos/libdruntime/core/stdc/fenv.d
+++ b/libphobos/libdruntime/core/stdc/fenv.d
+@@ -436,20 +436,33 @@ else version (CRuntime_Musl)
+             ushort __cs_selector;
+             ushort __opcode;
+             uint   __data_offset;
+             ushort __data_selector;
+             ushort __unused5;
+             version (X86_64)
+                 uint __mxcsr;
+         }
+         alias ushort fexcept_t;
+     }
+    else version (RISCV64)
+    {
+        alias uint fenv_t;
+        alias uint fexcept_t;
+    }
+    else version (LoongArch64)
+    {
+        struct fenv_t
+        {
+            uint __cw;
+        }
+        alias uint fexcept_t;
+    }
+     else
+     {
+         static assert(false, "Architecture not supported.");
+     }
+ }
+ else version (CRuntime_Newlib)
+ {
+     version (AArch64)
+     {
+         alias fenv_t = ulong;
+diff --git a/libphobos/libdruntime/core/sys/posix/signal.d b/libphobos/libdruntime/core/sys/posix/signal.d
+index a8b7f751..78d8b3cd 100644
+--- a/libphobos/libdruntime/core/sys/posix/signal.d
+++ b/libphobos/libdruntime/core/sys/posix/signal.d
+@@ -2751,20 +2751,30 @@ else version (CRuntime_Musl)
+     else version (PPC_Any)
+     {
+         enum MINSIGSTKSZ = 4096;
+         enum SIGSTKSZ    = 10240;
+     }
+     else version (X86_Any)
+     {
+         enum MINSIGSTKSZ = 2048;
+         enum SIGSTKSZ    = 8192;
+     }
+    else version (RISCV64)
+    {
+        enum MINSIGSTKSZ = 2048;
+        enum SIGSTKSZ    = 8192;
+    }
+    else version (LoongArch64)
+    {
+        enum MINSIGSTKSZ = 4096;
+        enum SIGSTKSZ    = 16384;
+    }
+     else
+         static assert(0, "unimplemented");
+ 
+     //ucontext_t (defined in core.sys.posix.ucontext)
+     //mcontext_t (defined in core.sys.posix.ucontext)
+ 
+     version (MIPS_Any)
+     {
+         struct stack_t
+         {
@@ -0,0 +1,867 @@
+# Automatically generated aport, do not edit!
+# Generator: pmbootstrap aportgen gcc-armhf
+# Based on: main/gcc (from Alpine)
+
+CTARGET_ARCH=armhf
+CTARGET="$(arch_to_hostspec ${CTARGET_ARCH})"
+LANG_D=false
+LANG_OBJC=false
+LANG_JAVA=false
+LANG_GO=false
+LANG_FORTRAN=false
+LANG_ADA=false
+options="!strip"
+
+# abuild doesn't try to tries to install "build-base-$CTARGET_ARCH"
+# when this variable matches "no*"
+BOOTSTRAP="nobuildbase"
+
+# abuild will only cross compile when this variable is set, but it
+# needs to find a valid package database in there for dependency
+# resolving, so we set it to /.
+CBUILDROOT="/"
+
+_cross_configure="--disable-bootstrap --with-sysroot=/usr/$CTARGET"
+
+pkgname=gcc-armhf
+pkgver=14.2.0
+# i.e. 13.2.1, must match gcc/BASE-VER
+_pkgbase="${pkgver%%_git*}"
+# date component from snapshots
+_pkgsnap="${pkgver##*_git}"
+[ "$BOOTSTRAP" = "nolibc" ] && pkgname="gcc-pass2"
+[ "$CBUILD" != "$CHOST" ] && _cross="-$CARCH" || _cross=""
+[ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""
+
+pkgname=gcc-armhf
+pkgrel=3
+pkgdesc="Stage2 cross-compiler for armhf"
+url="https://gcc.gnu.org"
+arch="x86_64"
+license="GPL-2.0-or-later AND LGPL-2.1-or-later"
+_gccrel=$pkgver-r$pkgrel
+depends="binutils-armhf mpc1"
+makedepends_build="gcc g++ bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
+makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev musl-dev-armhf binutils-armhf"
+subpackages="g++-armhf:gpp libstdc++-dev-armhf:libcxx_dev"
+[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-gdb gcc-doc$_target"
+replaces="libstdc++ binutils"
+options="!strip"
+
+: "${LANG_CXX:=true}"
+: "${LANG_D:=true}"
+: "${LANG_OBJC:=true}"
+: "${LANG_GO:=true}"
+: "${LANG_FORTRAN:=true}"
+: "${LANG_ADA:=true}"
+: "${LANG_JIT:=true}"
+
+_libgomp=true
+_libgcc=false
+_libatomic=true
+_libitm=true
+
+if [ "$CHOST" != "$CTARGET" ]; then
+	if [ "$BOOTSTRAP" = nolibc ]; then
+		LANG_CXX=false
+		LANG_D=false
+		LANG_ADA=false
+		_libgcc=false
+		_builddir="$srcdir/build-cross-pass2"
+	else
+		_builddir="$srcdir/build-cross-final"
+	fi
+	LANG_OBJC=false
+	LANG_GO=false
+	LANG_FORTRAN=false
+	LANG_JIT=false
+	_libgomp=false
+	_libatomic=false
+	_libitm=false
+
+	# format-sec: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100431
+	CPPFLAGS="${CPPFLAGS/-Werror=format-security/}"
+	# reset target flags (should be set in crosscreate abuild)
+	# fixup flags. seems gcc treats CPPFLAGS as global without
+	# _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS.
+	export CFLAGS="$CPPFLAGS -g0 ${CFLAGS/-Werror=format-security/}"
+	export CXXFLAGS="$CPPFLAGS -g0 ${CXXFLAGS/-Werror=format-security/}"
+	unset CPPFLAGS
+	export CFLAGS_FOR_TARGET=" "
+	export CXXFLAGS_FOR_TARGET=" "
+	export LDFLAGS_FOR_TARGET=" "
+
+	STRIP_FOR_TARGET="$CTARGET-strip"
+elif [ "$CBUILD" != "$CHOST" ]; then
+	# format-sec: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100431
+	CPPFLAGS="${CPPFLAGS/-Werror=format-security/}"
+	# fixup flags. seems gcc treats CPPFLAGS as global without
+	# _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS.
+	export CFLAGS="$CPPFLAGS -g0 ${CFLAGS/-Werror=format-security/}"
+	export CXXFLAGS="$CPPFLAGS -g0 ${CXXFLAGS/-Werror=format-security/}"
+	unset CPPFLAGS
+
+	# reset flags and cc for build
+	export CC_FOR_BUILD="gcc"
+	export CXX_FOR_BUILD="g++"
+	export CFLAGS_FOR_BUILD=" "
+	export CXXFLAGS_FOR_BUILD=" "
+	export LDFLAGS_FOR_BUILD=" "
+	export CFLAGS_FOR_TARGET=" "
+	export CXXFLAGS_FOR_TARGET=" "
+	export LDFLAGS_FOR_TARGET=" "
+
+	# Languages that do not need bootstrapping
+	LANG_OBJC=false
+	LANG_GO=false
+	LANG_FORTRAN=false
+	LANG_JIT=false
+
+	STRIP_FOR_TARGET=${CROSS_COMPILE}strip
+	_builddir="$srcdir/build-cross-native"
+else
+	STRIP_FOR_TARGET=${CROSS_COMPILE}strip
+	_builddir="$srcdir/build"
+
+	# format-sec: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100431
+	CPPFLAGS="${CPPFLAGS/-Werror=format-security/}"
+	# pass -g0 by default to bypass -g, since we don't do debug
+	# if -dbg added, the -g is appended and overrides this
+	export CFLAGS="$CPPFLAGS -g0 ${CFLAGS/-Werror=format-security/} -O2"
+	export CXXFLAGS="$CPPFLAGS -g0 ${CXXFLAGS/-Werror=format-security/} -O2"
+	unset CPPFLAGS
+	# https://gcc.gnu.org/install/build.html
+	export CFLAGS_FOR_TARGET="$CFLAGS"
+	export CXXFLAGS_FOR_TARGET="$CXXFLAGS"
+	export LDFLAGS_FOR_TARGET="$LDFLAGS"
+	export BOOT_CFLAGS="$CFLAGS"
+	export BOOT_CXXFLAGS="$CXXFLAGS"
+	export BOOT_LDFLAGS="$LDFLAGS"
+fi
+
+case "$CTARGET_ARCH" in
+# GDC hasn't been ported to PowerPC
+# See libphobos/configure.tgt in GCC sources for supported targets
+# riscv fails with: error: static assert  "unimplemented"
+ppc64le|riscv64)	LANG_D=false ;;
+# GDC does currently not work on 32-bit musl architectures.
+# This is a known upstream issue.
+# See: https://github.com/dlang/druntime/pull/3383
+armhf|armv7|x86)	LANG_D=false ;;
+esac
+
+# libitm has TEXTRELs in ARM build, so disable for now
+case "$CTARGET_ARCH" in
+arm*)		_libitm=false ;;
+mips*)		_libitm=false ;;
+riscv64)	_libitm=false ;;
+loongarch64)	_libitm=false ;;
+esac
+
+# Internal libffi fails to build on MIPS at the moment, need to
+# investigate further.  We disable LANG_GO on mips64 as it requires
+# the internal libffi.
+case "$CTARGET_ARCH" in
+mips*)		LANG_GO=false ;;
+loongarch64)	LANG_GO=false ;;
+esac
+
+# Fortran uses libquadmath if toolchain has __float128
+# currently on x86, x86_64 and ia64
+_libquadmath=$LANG_FORTRAN
+case "$CTARGET_ARCH" in
+x86 | x86_64 | ppc64le)	_libquadmath=$LANG_FORTRAN ;;
+*)		_libquadmath=false ;;
+esac
+
+# libatomic is a dependency for openvswitch
+$_libatomic && subpackages="$subpackages libatomic::$CTARGET_ARCH"
+$_libgcc && subpackages="$subpackages libgcc::$CTARGET_ARCH"
+$_libquadmath && subpackages="$subpackages libquadmath::$CTARGET_ARCH"
+if $_libgomp; then
+	depends="$depends libgomp=$_gccrel"
+	subpackages="$subpackages libgomp::$CTARGET_ARCH"
+fi
+
+case "$CTARGET_ARCH" in
+riscv64|loongarch64)
+LANG_ADA=false;;
+esac
+
+_languages=c
+if $LANG_CXX; then
+	_languages="$_languages,c++"
+fi
+if $LANG_D; then
+	subpackages="$subpackages gcc-gdc$_target:gdc"
+	_languages="$_languages,d"
+	makedepends_build="$makedepends_build libucontext-dev"
+	if [ "$CBUILD" = "$CTARGET" ]; then
+		makedepends_build="$makedepends_build gcc-gdc-bootstrap"
+		subpackages="$subpackages libgphobos::$CTARGET_ARCH"
+	else
+		# shared libgphobos is for D programs to link against, so
+		# skip building that while cross-compiling the GDC compiler
+		makedepends_build="$makedepends_build gcc-gdc gcc-gdc$_cross"
+	fi
+fi
+if $LANG_OBJC; then
+	subpackages="$subpackages libobjc::$CTARGET_ARCH gcc-objc$_target:objc"
+	_languages="$_languages,objc"
+fi
+if $LANG_GO; then
+	subpackages="$subpackages libgo::$CTARGET_ARCH gcc-go$_target:go"
+	_languages="$_languages,go"
+fi
+if $LANG_FORTRAN; then
+	subpackages="$subpackages libgfortran::$CTARGET_ARCH gfortran$_target:gfortran"
+	_languages="$_languages,fortran"
+fi
+if $LANG_ADA; then
+	subpackages="$subpackages gcc-gnat$_target:gnat"
+	_languages="$_languages,ada"
+	if [ "$CBUILD" = "$CTARGET" ]; then
+		makedepends_build="$makedepends_build gcc-gnat-bootstrap"
+		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH libgnat::$CTARGET_ARCH"
+	else
+		subpackages="$subpackages libgnat::$CTARGET_ARCH"
+		makedepends_build="$makedepends_build gcc-gnat gcc-gnat$_cross"
+	fi
+fi
+if $LANG_JIT; then
+	subpackages="$subpackages libgccjit:jit libgccjit-dev:jitdev"
+fi
+makedepends="$makedepends_build $makedepends_host"
+
+# when using upstream releases, use this URI template
+# https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
+#
+# right now, we are using a git snapshot. snapshots are taken from gcc.gnu.org/pub/gcc/snapshots.
+# However, since they are periodically deleted from the GCC mirrors the utilized snapshots are
+# mirrored on dev.alpinelinux.org. Please ensure that the snapshot Git commit (as stated in the
+# README) matches the base commit on the version-specific branch in the Git repository below.
+#
+# PLEASE submit all patches to gcc to https://gitlab.alpinelinux.org/kaniini/alpine-gcc-patches,
+# so that they can be properly tracked and easily rebased if needed.
+#source="https://dev.alpinelinux.org/archive/gcc/${_pkgbase%%.*}-$_pkgsnap/gcc-${_pkgbase%%.*}-$_pkgsnap.tar.xz
+source="https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
+	0001-posix_memalign.patch
+	0002-gcc-poison-system-directories.patch
+	0003-specs-turn-on-Wl-z-now-by-default.patch
+	0004-Turn-on-D_FORTIFY_SOURCE-2-by-default-for-C-C-ObjC-O.patch
+	0005-On-linux-targets-pass-as-needed-by-default-to-the-li.patch
+	0006-Enable-Wformat-and-Wformat-security-by-default.patch
+	0007-Enable-Wtrampolines-by-default.patch
+	0008-Disable-ssp-on-nostdlib-nodefaultlibs-and-ffreestand.patch
+	0009-Ensure-that-msgfmt-doesn-t-encounter-problems-during.patch
+	0010-Don-t-declare-asprintf-if-defined-as-a-macro.patch
+	0011-libiberty-copy-PIC-objects-during-build-process.patch
+	0012-libgcc_s.patch
+	0013-nopie.patch
+	0014-ada-fix-shared-linking.patch
+	0015-build-fix-CXXFLAGS_FOR_BUILD-passing.patch
+	0016-add-fortify-headers-paths.patch
+	0017-Alpine-musl-package-provides-libssp_nonshared.a.-We-.patch
+	0018-DP-Use-push-state-pop-state-for-gold-as-well-when-li.patch
+	0019-aarch64-disable-multilib-support.patch
+	0020-s390x-disable-multilib-support.patch
+	0021-ppc64-le-disable-multilib-support.patch
+	0022-x86_64-disable-multilib-support.patch
+	0023-riscv-disable-multilib-support.patch
+	0024-always-build-libgcc_eh.a.patch
+	0025-ada-libgnarl-compatibility-for-musl.patch
+	0026-ada-musl-support-fixes.patch
+	0027-configure-Add-enable-autolink-libatomic-use-in-LINK_.patch
+	0028-configure-fix-detection-of-atomic-builtins-in-libato.patch
+	0029-libstdc-do-not-throw-exceptions-for-non-C-locales-on.patch
+	0030-gdc-unconditionally-link-libgphobos-against-libucont.patch
+	0031-druntime-link-against-libucontext-on-all-platforms.patch
+	0032-libgnat-time_t-is-always-64-bit-on-musl-libc.patch
+	0033-libphobos-do-not-use-LFS64-symbols.patch
+	0034-libgo-fix-lfs64-use.patch
+	0035-loongarch-disable-multilib-support.patch
+	0036-libphobos-add-riscv64-and-loongarch64-support.patch
+	fix-arm64.patch
+	ppc64le-quadmath.patch
+	"
+
+# secfixes:
+#   13.2.1_git20231014-r0:
+#     - CVE-2023-4039
+
+# we build out-of-tree
+#_gccdir="$srcdir"/gcc-${_pkgbase%%.*}-$_pkgsnap
+_gccdir="$srcdir"/gcc-${_pkgbase:-$pkgver}
+_gcclibdir="/usr/lib/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+_gcclibexec="/usr/libexec/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+
+prepare() {
+	cd "$_gccdir"
+
+	_err=
+	for i in $source; do
+		case "$i" in
+		*.patch)
+			msg "Applying $i"
+			patch -p1 -i "$srcdir"/$i || _err="$_err $i"
+			;;
+		esac
+	done
+
+	if [ -n "$_err" ]; then
+		error "The following patches failed:"
+		for i in $_err; do
+			echo "  $i"
+		done
+		return 1
+	fi
+
+	echo ${_pkgbase:-$pkgver} > gcc/BASE-VER
+}
+
+build() {
+	local _arch_configure=
+	local _libc_configure=
+	local _bootstrap_configure=
+	local _symvers=
+	local _jit_configure=
+
+	cd "$_gccdir"
+
+	case "$CTARGET" in
+	aarch64-*-*-*)		_arch_configure="--with-arch=armv8-a --with-abi=lp64";;
+	armv5-*-*-*eabi)	_arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";;
+	armv6-*-*-*eabihf)	_arch_configure="--with-arch=armv6kz --with-tune=arm1176jzf-s --with-fpu=vfpv2 --with-float=hard --with-abi=aapcs-linux";;
+	armv7-*-*-*eabihf)	_arch_configure="--with-arch=armv7-a --with-tune=generic-armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-abi=aapcs-linux --with-mode=thumb";;
+	mips-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	mips64-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mips64el-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mipsel-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	powerpc-*-*-*)		_arch_configure="--enable-secureplt --enable-decimal-float=no";;
+	powerpc64*-*-*-*)	_arch_configure="--with-abi=elfv2 --enable-secureplt --enable-decimal-float=no --enable-targets=powerpcle-linux";;
+	i486-*-*-*)		_arch_configure="--with-arch=i486 --with-tune=generic --enable-cld";;
+	i586-*-*-*)		_arch_configure="--with-arch=pentium-m --with-fpmath=sse --with-tune=generic --enable-cld";;
+	s390x-*-*-*)		_arch_configure="--with-arch=z196 --with-tune=zEC12 --with-zarch --with-long-double-128 --enable-decimal-float";;
+	riscv64-*-*-*)		_arch_configure="--with-arch=rv64gc --with-abi=lp64d --enable-autolink-libatomic";;
+	loongarch64-*-*-*)      _arch_configure="--with-arch=loongarch64 --with-abi=lp64d";;
+	esac
+
+	case "$CTARGET_ARCH" in
+	mips*)	_hash_style_configure="--with-linker-hash-style=sysv" ;;
+	*)	_hash_style_configure="--with-linker-hash-style=gnu" ;;
+	esac
+
+	case "$CTARGET_LIBC" in
+	musl)
+		# musl does not support libsanitizer
+		# alpine musl provides libssp_nonshared.a, so we don't need libssp either
+		_libc_configure="--disable-libssp --disable-libsanitizer"
+		_symvers="--disable-symvers"
+		export libat_cv_have_ifunc=no
+		;;
+	esac
+
+
+	case "$BOOTSTRAP" in
+	nolibc)	_bootstrap_configure="--with-newlib --disable-shared --enable-threads=no" ;;
+	*)
+		# cross-bootstrap GDC with a static libphobos: due to GCC's
+		# ./configure not having a --disable-shared=libphobos option,
+		# we have to use --enable-shared with everything else instead.
+		if $LANG_D && [ "$CBUILD" != "$CTARGET" ]; then
+			_bootstrap_configure="--enable-shared=libgcc,libstdc++,libffi,zlib,boehm-gc,ada,libada,libgo,libobjc,libatomic,libgomp,libitm,libgfortran,libquadmath"
+		else
+			_bootstrap_configure="--enable-shared"
+		fi
+		_bootstrap_configure="$_bootstrap_configure --enable-threads --enable-tls"
+		;;
+	esac
+
+	$_libgomp	|| _bootstrap_configure="$_bootstrap_configure --disable-libgomp"
+	$_libatomic	|| _bootstrap_configure="$_bootstrap_configure --disable-libatomic"
+	$_libitm	|| _bootstrap_configure="$_bootstrap_configure --disable-libitm"
+	$_libquadmath	|| _arch_configure="$_arch_configure --disable-libquadmath"
+
+	msg "Building the following:"
+	echo ""
+	echo "  CBUILD=$CBUILD"
+	echo "  CHOST=$CHOST"
+	echo "  CTARGET=$CTARGET"
+	echo "  CTARGET_ARCH=$CTARGET_ARCH"
+	echo "  CTARGET_LIBC=$CTARGET_LIBC"
+	echo "  languages=$_languages"
+	echo "  arch_configure=$_arch_configure"
+	echo "  libc_configure=$_libc_configure"
+	echo "  cross_configure=$_cross_configure"
+	echo "  bootstrap_configure=$_bootstrap_configure"
+	echo "  hash_style_configure=$_hash_style_configure"
+	echo ""
+
+	local version="Alpine $pkgver"
+	local gccconfiguration="
+		--prefix=/usr
+		--mandir=/usr/share/man
+		--infodir=/usr/share/info
+		--build=$CBUILD
+		--host=$CHOST
+		--target=$CTARGET
+		--enable-checking=release
+		--disable-cet
+		--disable-fixed-point
+		--disable-libstdcxx-pch
+		--disable-multilib
+		--disable-nls
+		--disable-werror
+		$_symvers
+		--enable-__cxa_atexit
+		--enable-default-pie
+		--enable-default-ssp
+		--enable-languages=$_languages
+		--enable-link-serialization=2
+		--enable-linker-build-id
+		$_arch_configure
+		$_libc_configure
+		$_cross_configure
+		$_bootstrap_configure
+		--with-bugurl=https://gitlab.alpinelinux.org/alpine/aports/-/issues
+		--with-system-zlib
+		$_hash_style_configure
+		"
+
+	mkdir -p "$_builddir"
+	cd "$_builddir"
+	"$_gccdir"/configure $gccconfiguration \
+		--with-pkgversion="$version"
+
+	msg "building gcc"
+	if $LANG_D && [ "$CBUILD" != "$CTARGET" ]; then
+		# cross-compiling libphobos with parallel make fails
+		make all-target-libphobos
+	fi
+	make
+
+	# we build gccjit separate to not build all of gcc with --enable-host-shared
+	# as doing so slows it down a few %, so for some quick if's here we gain
+	# free performance
+	if $LANG_JIT; then
+		mkdir -p "$_builddir"/libgccjit-build
+		cd "$_builddir"/libgccjit-build
+		"$_gccdir"/configure $gccconfiguration \
+			--disable-bootstrap \
+			--enable-host-shared \
+			--enable-languages=jit \
+			--with-pkgversion="$version"
+
+		msg "building libgccjit"
+		make all-gcc
+	fi
+}
+
+package() {
+	cd "$_builddir"
+	make -j1 DESTDIR="$pkgdir" install
+
+	ln -s gcc "$pkgdir"/usr/bin/cc
+	ln -s ${CTARGET}-gcc "$pkgdir"/usr/bin/${CTARGET}-cc
+
+	if $LANG_JIT; then
+		make -C "$_builddir"/libgccjit-build/gcc DESTDIR="$pkgdir" jit.install-common
+	fi
+
+	# we dont support gcj -static
+	# and saving 35MB is not bad.
+	find "$pkgdir" \( -name libgtkpeer.a \
+		-o -name libgjsmalsa.a \
+		-o -name libgij.a \) \
+		-delete
+
+	# strip debug info from some static libs
+	find "$pkgdir" \( -name libgfortran.a -o -name libobjc.a -o -name libgomp.a \
+		-o -name libgphobos.a -o -name libgdruntime.a \
+		-o -name libgcc.a -o -name libgcov.a -o -name libquadmath.a \
+		-o -name libitm.a -o -name libgo.a -o -name libcaf\*.a \
+		-o -name libatomic.a -o -name libasan.a -o -name libtsan.a \) \
+		-a -type f \
+		-exec $STRIP_FOR_TARGET -g {} +
+
+	if $_libgomp; then
+		mv "$pkgdir"/usr/lib/libgomp.spec "$pkgdir"/$_gcclibdir
+	fi
+	if $_libitm; then
+		mv "$pkgdir"/usr/lib/libitm.spec "$pkgdir"/$_gcclibdir
+	fi
+
+	# remove ffi
+	rm -f "$pkgdir"/usr/lib/libffi* "$pkgdir"/usr/share/man/man3/ffi*
+	find "$pkgdir" -name 'ffi*.h' -delete
+
+	local gdblib=${_target:+$CTARGET/}lib
+	if [ -d "$pkgdir"/usr/$gdblib/ ]; then
+		for i in $(find "$pkgdir"/usr/$gdblib/ -type f -maxdepth 1 -name "*-gdb.py"); do
+			mkdir -p "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib
+			mv "$i" "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib/
+		done
+	fi
+
+	# move ada runtime libs
+	if $LANG_ADA; then
+		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.so"); do
+			mv "$i" "$pkgdir"/usr/lib/
+			ln -s ../../../../${i##*/} $i
+		done
+		if [ "$CHOST" = "$CTARGET" ]; then
+			for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.a"); do
+				mv "$i" "$pkgdir"/usr/lib/
+				ln -s ../../../../${i##*/} $i
+			done
+		fi
+	fi
+
+	if [ "$CHOST" != "$CTARGET" ]; then
+		# cross-gcc: remove any files that would conflict with the
+		# native gcc package
+		rm -rf "$pkgdir"/usr/bin/cc "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
+		# libcc1 does not depend on target, don't ship it
+		rm -rf "$pkgdir"/usr/lib/libcc1.so*
+
+		# fixup gcc library symlinks to be linker scripts so
+		# linker finds the libs from relocated sysroot
+		for so in "$pkgdir"/usr/"$CTARGET"/lib/*.so; do
+			if [ -h "$so" ]; then
+				local _real=$(basename "$(readlink "$so")")
+				rm -f "$so"
+				echo "GROUP ($_real)" > "$so"
+			fi
+		done
+	else
+		# add c89/c99 wrapper scripts
+		cat >"$pkgdir"/usr/bin/c89 <<'EOF'
+#!/bin/sh
+_flavor="-std=c89"
+for opt; do
+	case "$opt" in
+	-ansi|-std=c89|-std=iso9899:1990) _flavor="";;
+	-std=*) echo "$(basename $0) called with non ANSI/ISO C option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $_flavor ${1+"$@"}
+EOF
+		cat >"$pkgdir"/usr/bin/c99 <<'EOF'
+#!/bin/sh
+_flavor="-std=c99"
+for opt; do
+	case "$opt" in
+	-std=c99|-std=iso9899:1999) _flavor="";;
+	-std=*) echo "$(basename $0) called with non ISO C99 option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $_flavor ${1+"$@"}
+EOF
+		chmod 755 "$pkgdir"/usr/bin/c?9
+
+		# install lto plugin so regular binutils may use it
+		mkdir -p "$pkgdir"/usr/lib/bfd-plugins
+		ln -s /$_gcclibexec/liblto_plugin.so "$pkgdir/usr/lib/bfd-plugins/"
+	fi
+}
+
+libatomic() {
+	pkgdesc="GCC Atomic library"
+	depends=
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libatomic.so.* "$subpkgdir"/usr/lib/
+}
+
+libcxx() {
+	pkgdesc="GNU C++ standard runtime library"
+	depends=
+
+	if [ "$CHOST" = "$CTARGET" ]; then
+		# verify that we are using clock_gettime rather than doing direct syscalls
+		# so we dont break 32 bit arches due to time64.
+		nm -D "$pkgdir"/usr/lib/libstdc++.so.* | grep clock_gettime
+	fi
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libstdc++.so.* "$subpkgdir"/usr/lib/
+}
+
+libcxx_dev() {
+	pkgdesc="GNU C++ standard runtime library (development files)"
+	depends=
+	replaces="g++"
+
+	amove usr/${_target:+$CTARGET/}lib/libstdc++.a \
+		usr/${_target:+$CTARGET/}lib/libstdc++exp.a \
+		usr/${_target:+$CTARGET/}lib/libstdc++.so \
+		usr/${_target:+$CTARGET/}lib/libstdc++fs.a \
+		usr/${_target:+$CTARGET/}lib/libsupc++.a \
+		usr/${_target:+$CTARGET/}include/c++
+}
+
+gpp() {
+	pkgdesc="GNU C++ standard library and compiler"
+	depends="libstdc++=$_gccrel libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel libc-dev"
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/usr/bin \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}include \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}lib \
+
+	mv "$pkgdir/$_gcclibexec/cc1plus" "$subpkgdir/$_gcclibexec/"
+
+	mv "$pkgdir"/usr/bin/*++ "$subpkgdir"/usr/bin/
+}
+
+jit() {
+	pkgdesc="GCC JIT Library"
+	depends=
+	amove usr/lib/libgccjit.so*
+}
+
+jitdev() {
+	pkgdesc="GCC JIT Library (development files)"
+	depends="libgccjit"
+	amove usr/include/libgccjit*.h
+}
+
+libobjc() {
+	pkgdesc="GNU Objective-C runtime"
+	replaces="objc"
+	depends=
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libobjc.so.* "$subpkgdir"/usr/lib/
+}
+
+objc() {
+	pkgdesc="GNU Objective-C"
+	replaces="gcc"
+	depends="libc-dev gcc=$_gccrel libobjc=$_gccrel"
+
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include \
+		"$subpkgdir"/usr/lib
+	mv "$pkgdir/$_gcclibexec/cc1obj" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/objc "$subpkgdir"/$_gcclibdir/include/
+	mv "$pkgdir"/usr/lib/libobjc.so "$pkgdir"/usr/lib/libobjc.a \
+		"$subpkgdir"/usr/lib/
+}
+
+libgcc() {
+	pkgdesc="GNU C compiler runtime libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgcc_s.so.* "$subpkgdir"/usr/lib/
+}
+
+libgomp() {
+	pkgdesc="GCC shared-memory parallel programming API library"
+	depends=
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgomp.so.* "$subpkgdir"/usr/lib/
+}
+
+libgphobos() {
+	pkgdesc="D programming language standard library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgdruntime.so.* "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.so.*  "$subpkgdir"/usr/lib/
+}
+
+gdc() {
+	pkgdesc="GCC-based D language compiler"
+	depends="gcc$_target=$_gccrel musl-dev libucontext-dev"
+	[ "$CBUILD" = "$CTARGET" ] && depends="$depends libgphobos=$_gccrel"
+	[ "$CHOST" = "$CTARGET" ] && provides="gcc-gdc-bootstrap=$_gccrel"
+
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include/d/ \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	# Copy: The installed '.d' files, the static lib, the binary itself
+	# The shared libs are part of 'libgphobos' so one can run program
+	# without installing the compiler
+	mv "$pkgdir/$_gcclibexec/d21" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/d/* "$subpkgdir"/$_gcclibdir/include/d/
+	if [ "$CBUILD" = "$CTARGET" ]; then
+		mv "$pkgdir"/usr/lib/libgdruntime.so "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.so "$subpkgdir"/usr/lib/
+	fi
+	if [ "$CHOST" = "$CTARGET" ]; then
+		mv "$pkgdir"/usr/lib/libgdruntime.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.spec "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/bin/gdc "$subpkgdir"/usr/bin/
+	else
+		mkdir -p "$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgdruntime.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.spec \
+			"$subpkgdir"/usr/$CTARGET/lib/
+	fi
+	mv "$pkgdir"/usr/bin/$CTARGET-gdc "$subpkgdir"/usr/bin/
+}
+
+libgo() {
+	pkgdesc="Go runtime library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgo.so.* "$subpkgdir"/usr/lib/
+}
+
+go() {
+	pkgdesc="GCC Go frontend (intended for bootstrapping community/go)"
+	depends="gcc=$_gccrel libgo=$_gccrel !go"
+	install="$pkgname-go.post-install"
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/lib/go "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/bin/*gccgo "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/bin/*go "$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gofmt "$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/go1 "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/cgo "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/buildid "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/test2json "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/vet "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/usr/lib/libgo.a \
+		"$pkgdir"/usr/lib/libgo.so \
+		"$pkgdir"/usr/lib/libgobegin.a \
+		"$pkgdir"/usr/lib/libgolibbegin.a \
+		"$subpkgdir"/usr/lib/
+}
+
+libgfortran() {
+	pkgdesc="Fortran runtime library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgfortran.so.* "$subpkgdir"/usr/lib/
+}
+
+libquadmath() {
+	replaces="gcc"
+	pkgdesc="128-bit math library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libquadmath.so.* "$subpkgdir"/usr/lib/
+}
+
+gfortran() {
+	pkgdesc="GNU Fortran Compiler"
+	depends="gcc=$_gccrel libgfortran=$_gccrel"
+	$_libquadmath && depends="$depends libquadmath=$_gccrel"
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gfortran "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/lib/libgfortran.a \
+		"$pkgdir"/usr/lib/libgfortran.so \
+		"$subpkgdir"/usr/lib/
+	if $_libquadmath; then
+		mv "$pkgdir"/usr/lib/libquadmath.a \
+			"$pkgdir"/usr/lib/libquadmath.so \
+			"$subpkgdir"/usr/lib/
+	fi
+	mv "$pkgdir"/$_gcclibdir/finclude "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibexec/f951 "$subpkgdir"/$_gcclibexec
+	mv "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir
+}
+
+libgnat() {
+	pkgdesc="GNU Ada runtime shared libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.so "$subpkgdir"/usr/lib/
+}
+
+libgnatstatic() {
+	pkgdesc="GNU Ada static libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.a "$subpkgdir"/usr/lib/
+}
+
+gnat() {
+	pkgdesc="Ada support for GCC"
+	depends="gcc=$_gccrel"
+	provides="$pkgname-gnat-bootstrap=$_gccrel"
+	[ "$CHOST" = "$CTARGET" ] && depends="$depends libgnat=$_gccrel"
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/*gnat* "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibdir/*ada* "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/usr/bin/*gnat* "$subpkgdir"/usr/bin/
+}
+
+gdb() {
+	pkgdesc="$pkgdesc (gdb printers)"
+	install_if="$pkgname=$pkgver-r$pkgrel gdb"
+
+	amove \
+		usr/share/gdb/python/ \
+		usr/share/gcc-*/python/
+}
+
+sha512sums="
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+b325035cb7122d79c6b42ca6d3fc9e02319ed2f7cddb0639dff25d2798d2ce63812cd623462cdf95e21c9ffbf2412193f8b9fc89a4c36fa5a6a041661ac7399d  0032-libgnat-time_t-is-always-64-bit-on-musl-libc.patch
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+c4482ffc36e7894b2140800159f4cbc9a3e9011e43a69b69f4fa92d5a11e2ee645c7e21df4423dd1e0636e8890849a5719647bfbdf84f951d638f8f488cb718c  0034-libgo-fix-lfs64-use.patch
+65df1d489e8d07a811f39e27fd29e3b2b4164fbc2c5fdc16a5142886d94a96e3fb28ccf4f20dd297ba6540ef8ea1ac3eb65a4279494639bf2f0f8376a3896cc3  0035-loongarch-disable-multilib-support.patch
+06f64544fd8bc4b6c8b06410c5198aa8fb4e82c232afc0cad83b2c69ac5d39399968206defa78297222700cd18e7fd7e8244afa76d343406a01f657c86306453  0036-libphobos-add-riscv64-and-loongarch64-support.patch
+00319c9770362520e8e93bd03fda1769dfa3622eba77d620e11d8af45a38e6d804a5e924046ae388e1cfaea605696e89c343fca507aaaa5edd58d80744fff14f  fix-arm64.patch
+815265826742400f86336f0c2d3e4edc37398dbc6505ee81107c0103c13ac0f406cff851438d2323033c6c6d0c0323765ee15b975eab8d1dd465f9e988168fb9  ppc64le-quadmath.patch
+"
@@ -0,0 +1,544 @@
+From 2894660df1292153632edbc2a5b66eaf6a864660 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Thu, 13 Jun 2024 12:48:21 +0100
+Subject: [PATCH 1/4] aarch64: Fix invalid nested subregs [PR115464]
+
+The testcase extracts one arm_neon.h vector from a pair (one subreg)
+and then reinterprets the result as an SVE vector (another subreg).
+Each subreg makes sense individually, but we can't fold them together
+into a single subreg: it's 32 bytes -> 16 bytes -> 16*N bytes,
+but the interpretation of 32 bytes -> 16*N bytes depends on
+whether N==1 or N>1.
+
+Since the second subreg makes sense individually, simplify_subreg
+should bail out rather than ICE on it.  simplify_gen_subreg will
+then do the same (because it already checks validate_subreg).
+This leaves simplify_gen_subreg returning null, requiring the
+caller to take appropriate action.
+
+I think this is relatively likely to occur elsewhere, so the patch
+adds a helper for forcing a subreg, allowing a temporary pseudo to
+be created where necessary.
+
+I'll follow up by using force_subreg in more places.  This patch
+is intended to be a minimal backportable fix for the PR.
+
+gcc/
+	PR target/115464
+	* simplify-rtx.cc (simplify_context::simplify_subreg): Don't try
+	to fold two subregs together if their relationship isn't known
+	at compile time.
+	* explow.h (force_subreg): Declare.
+	* explow.cc (force_subreg): New function.
+	* config/aarch64/aarch64-sve-builtins-base.cc
+	(svset_neonq_impl::expand): Use it instead of simplify_gen_subreg.
+
+gcc/testsuite/
+	PR target/115464
+	* gcc.target/aarch64/sve/acle/general/pr115464.c: New test.
+
+(cherry picked from commit 0970ff46ba6330fc80e8736fc05b2eaeeae0b6a0)
+---
+ gcc/config/aarch64/aarch64-sve-builtins-base.cc   |  2 +-
+ gcc/explow.cc                                     | 15 +++++++++++++++
+ gcc/explow.h                                      |  2 ++
+ gcc/simplify-rtx.cc                               |  5 +++++
+ .../aarch64/sve/acle/general/pr115464.c           | 13 +++++++++++++
+ 5 files changed, 36 insertions(+), 1 deletion(-)
+ create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464.c
+
+diff --git a/gcc/config/aarch64/aarch64-sve-builtins-base.cc b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+index 0d2edf3f19e..c9182594bc1 100644
+--- a/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+@@ -1174,7 +1174,7 @@ public:
+        Advanced SIMD argument as an SVE vector.  */
+     if (!BYTES_BIG_ENDIAN
+ 	&& is_undef (CALL_EXPR_ARG (e.call_expr, 0)))
+-      return simplify_gen_subreg (mode, e.args[1], GET_MODE (e.args[1]), 0);
+      return force_subreg (mode, e.args[1], GET_MODE (e.args[1]), 0);
+ 
+     rtx_vector_builder builder (VNx16BImode, 16, 2);
+     for (unsigned int i = 0; i < 16; i++)
+diff --git a/gcc/explow.cc b/gcc/explow.cc
+index 8e5f6b8e680..f6843398c4b 100644
+--- a/gcc/explow.cc
+++ b/gcc/explow.cc
+@@ -745,6 +745,21 @@ force_reg (machine_mode mode, rtx x)
+   return temp;
+ }
+ 
+/* Like simplify_gen_subreg, but force OP into a new register if the
+   subreg cannot be formed directly.  */
+
+rtx
+force_subreg (machine_mode outermode, rtx op,
+	      machine_mode innermode, poly_uint64 byte)
+{
+  rtx x = simplify_gen_subreg (outermode, op, innermode, byte);
+  if (x)
+    return x;
+
+  op = copy_to_mode_reg (innermode, op);
+  return simplify_gen_subreg (outermode, op, innermode, byte);
+}
+
+ /* If X is a memory ref, copy its contents to a new temp reg and return
+    that reg.  Otherwise, return X.  */
+ 
+diff --git a/gcc/explow.h b/gcc/explow.h
+index 16aa02cfb68..cbd1fcb7eb3 100644
+--- a/gcc/explow.h
+++ b/gcc/explow.h
+@@ -42,6 +42,8 @@ extern rtx copy_to_suggested_reg (rtx, rtx, machine_mode);
+    Args are mode (in case value is a constant) and the value.  */
+ extern rtx force_reg (machine_mode, rtx);
+ 
+extern rtx force_subreg (machine_mode, rtx, machine_mode, poly_uint64);
+
+ /* Return given rtx, copied into a new temp reg if it was in memory.  */
+ extern rtx force_not_mem (rtx);
+ 
+diff --git a/gcc/simplify-rtx.cc b/gcc/simplify-rtx.cc
+index dceaa13333c..729d408aa55 100644
+--- a/gcc/simplify-rtx.cc
+++ b/gcc/simplify-rtx.cc
+@@ -7612,6 +7612,11 @@ simplify_context::simplify_subreg (machine_mode outermode, rtx op,
+       poly_uint64 innermostsize = GET_MODE_SIZE (innermostmode);
+       rtx newx;
+ 
+      /* Make sure that the relationship between the two subregs is
+	 known at compile time.  */
+      if (!ordered_p (outersize, innermostsize))
+	return NULL_RTX;
+
+       if (outermode == innermostmode
+ 	  && known_eq (byte, 0U)
+ 	  && known_eq (SUBREG_BYTE (op), 0))
+diff --git a/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464.c b/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464.c
+new file mode 100644
+index 00000000000..d728d1325ed
+--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464.c
+@@ -0,0 +1,13 @@
+/* { dg-options "-O2" } */
+
+#include <arm_neon.h>
+#include <arm_sve.h>
+#include <arm_neon_sve_bridge.h>
+
+svuint16_t
+convolve4_4_x (uint16x8x2_t permute_tbl)
+{
+    return svset_neonq_u16 (svundef_u16 (), permute_tbl.val[1]);
+}
+
+/* { dg-final { scan-assembler {\tmov\tz0\.d, z1\.d\n} } } */
+-- 
+2.46.0
+
+
+From 7edecb21012d88902c60d38f5865bc254eaa9c55 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Tue, 18 Jun 2024 12:22:30 +0100
+Subject: [PATCH 2/4] aarch64: Use force_subreg in more places
+
+This patch makes the aarch64 code use force_subreg instead of
+simplify_gen_subreg in more places.  The criteria were:
+
+(1) The code is obviously specific to expand (where new pseudos
+    can be created).
+
+(2) The value is obviously an rvalue rather than an lvalue.
+
+(3) The offset wasn't a simple lowpart or highpart calculation;
+    a later patch will deal with those.
+
+gcc/
+	* config/aarch64/aarch64-builtins.cc (aarch64_expand_fcmla_builtin):
+	Use force_subreg instead of simplify_gen_subreg.
+	* config/aarch64/aarch64-simd.md (ctz<mode>2): Likewise.
+	* config/aarch64/aarch64-sve-builtins-base.cc
+	(svget_impl::expand): Likewise.
+	(svget_neonq_impl::expand): Likewise.
+	* config/aarch64/aarch64-sve-builtins-functions.h
+	(multireg_permute::expand): Likewise.
+
+(cherry picked from commit 1474a8eead4ab390e59ee014befa8c40346679f4)
+---
+ gcc/config/aarch64/aarch64-builtins.cc              | 4 ++--
+ gcc/config/aarch64/aarch64-simd.md                  | 4 ++--
+ gcc/config/aarch64/aarch64-sve-builtins-base.cc     | 8 +++-----
+ gcc/config/aarch64/aarch64-sve-builtins-functions.h | 6 +++---
+ 4 files changed, 10 insertions(+), 12 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64-builtins.cc b/gcc/config/aarch64/aarch64-builtins.cc
+index 75d21de1401..b2e46a073a8 100644
+--- a/gcc/config/aarch64/aarch64-builtins.cc
+++ b/gcc/config/aarch64/aarch64-builtins.cc
+@@ -2510,12 +2510,12 @@ aarch64_expand_fcmla_builtin (tree exp, rtx target, int fcode)
+       rtx temp2 = gen_reg_rtx (DImode);
+       temp1 = simplify_gen_subreg (d->mode, op2, quadmode,
+ 				   subreg_lowpart_offset (d->mode, quadmode));
+-      temp1 = simplify_gen_subreg (V2DImode, temp1, d->mode, 0);
+      temp1 = force_subreg (V2DImode, temp1, d->mode, 0);
+       if (BYTES_BIG_ENDIAN)
+ 	emit_insn (gen_aarch64_get_lanev2di (temp2, temp1, const0_rtx));
+       else
+ 	emit_insn (gen_aarch64_get_lanev2di (temp2, temp1, const1_rtx));
+-      op2 = simplify_gen_subreg (d->mode, temp2, GET_MODE (temp2), 0);
+      op2 = force_subreg (d->mode, temp2, GET_MODE (temp2), 0);
+ 
+       /* And recalculate the index.  */
+       lane -= nunits / 4;
+diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
+index 33ab0741e87..5b9efe0b165 100644
+--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
+@@ -412,8 +412,8 @@
+   "TARGET_SIMD"
+   {
+      emit_insn (gen_bswap<mode>2 (operands[0], operands[1]));
+-     rtx op0_castsi2qi = simplify_gen_subreg(<VS:VSI2QI>mode, operands[0],
+-					     <MODE>mode, 0);
+     rtx op0_castsi2qi = force_subreg (<VS:VSI2QI>mode, operands[0],
+				       <MODE>mode, 0);
+      emit_insn (gen_aarch64_rbit<VS:vsi2qi> (op0_castsi2qi, op0_castsi2qi));
+      emit_insn (gen_clz<mode>2 (operands[0], operands[0]));
+      DONE;
+diff --git a/gcc/config/aarch64/aarch64-sve-builtins-base.cc b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+index c9182594bc1..2c95da79572 100644
+--- a/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+@@ -1121,9 +1121,8 @@ public:
+   expand (function_expander &e) const override
+   {
+     /* Fold the access into a subreg rvalue.  */
+-    return simplify_gen_subreg (e.vector_mode (0), e.args[0],
+-				GET_MODE (e.args[0]),
+-				INTVAL (e.args[1]) * BYTES_PER_SVE_VECTOR);
+    return force_subreg (e.vector_mode (0), e.args[0], GET_MODE (e.args[0]),
+			 INTVAL (e.args[1]) * BYTES_PER_SVE_VECTOR);
+   }
+ };
+ 
+@@ -1157,8 +1156,7 @@ public:
+ 	e.add_fixed_operand (indices);
+ 	return e.generate_insn (icode);
+       }
+-    return simplify_gen_subreg (e.result_mode (), e.args[0],
+-				GET_MODE (e.args[0]), 0);
+    return force_subreg (e.result_mode (), e.args[0], GET_MODE (e.args[0]), 0);
+   }
+ };
+ 
+diff --git a/gcc/config/aarch64/aarch64-sve-builtins-functions.h b/gcc/config/aarch64/aarch64-sve-builtins-functions.h
+index 3b8e575e98e..7d06a57ff83 100644
+--- a/gcc/config/aarch64/aarch64-sve-builtins-functions.h
+++ b/gcc/config/aarch64/aarch64-sve-builtins-functions.h
+@@ -639,9 +639,9 @@ public:
+       {
+ 	machine_mode elt_mode = e.vector_mode (0);
+ 	rtx arg = e.args[0];
+-	e.args[0] = simplify_gen_subreg (elt_mode, arg, GET_MODE (arg), 0);
+-	e.args.safe_push (simplify_gen_subreg (elt_mode, arg, GET_MODE (arg),
+-					       GET_MODE_SIZE (elt_mode)));
+	e.args[0] = force_subreg (elt_mode, arg, GET_MODE (arg), 0);
+	e.args.safe_push (force_subreg (elt_mode, arg, GET_MODE (arg),
+					GET_MODE_SIZE (elt_mode)));
+       }
+     return e.use_exact_insn (icode);
+   }
+-- 
+2.46.0
+
+
+From 0ab664f41762803a72e5e99025b0512cad493985 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Tue, 18 Jun 2024 12:22:31 +0100
+Subject: [PATCH 3/4] aarch64: Add some uses of force_lowpart_subreg
+
+This patch makes more use of force_lowpart_subreg, similarly
+to the recent patch for force_subreg.  The criteria were:
+
+(1) The code is obviously specific to expand (where new pseudos
+    can be created).
+
+(2) The value is obviously an rvalue rather than an lvalue.
+
+gcc/
+	PR target/115464
+	* config/aarch64/aarch64-builtins.cc (aarch64_expand_fcmla_builtin)
+	(aarch64_expand_rwsr_builtin): Use force_lowpart_subreg instead of
+	simplify_gen_subreg and lowpart_subreg.
+	* config/aarch64/aarch64-sve-builtins-base.cc
+	(svset_neonq_impl::expand): Likewise.
+	* config/aarch64/aarch64-sve-builtins-sme.cc
+	(add_load_store_slice_operand): Likewise.
+	* config/aarch64/aarch64.cc (aarch64_sve_reinterpret): Likewise.
+	(aarch64_addti_scratch_regs, aarch64_subvti_scratch_regs): Likewise.
+
+gcc/testsuite/
+	PR target/115464
+	* gcc.target/aarch64/sve/acle/general/pr115464_2.c: New test.
+
+(cherry picked from commit 6bd4fbae45d11795a9a6f54b866308d4d7134def)
+---
+ gcc/config/aarch64/aarch64-builtins.cc             | 11 +++++------
+ gcc/config/aarch64/aarch64-sve-builtins-base.cc    |  2 +-
+ gcc/config/aarch64/aarch64-sve-builtins-sme.cc     |  2 +-
+ gcc/config/aarch64/aarch64.cc                      | 14 +++++---------
+ .../aarch64/sve/acle/general/pr115464_2.c          | 11 +++++++++++
+ 5 files changed, 23 insertions(+), 17 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464_2.c
+
+diff --git a/gcc/config/aarch64/aarch64-builtins.cc b/gcc/config/aarch64/aarch64-builtins.cc
+index b2e46a073a8..264b9560709 100644
+--- a/gcc/config/aarch64/aarch64-builtins.cc
+++ b/gcc/config/aarch64/aarch64-builtins.cc
+@@ -2497,8 +2497,7 @@ aarch64_expand_fcmla_builtin (tree exp, rtx target, int fcode)
+   int lane = INTVAL (lane_idx);
+ 
+   if (lane < nunits / 4)
+-    op2 = simplify_gen_subreg (d->mode, op2, quadmode,
+-			       subreg_lowpart_offset (d->mode, quadmode));
+    op2 = force_lowpart_subreg (d->mode, op2, quadmode);
+   else
+     {
+       /* Select the upper 64 bits, either a V2SF or V4HF, this however
+@@ -2508,8 +2507,7 @@ aarch64_expand_fcmla_builtin (tree exp, rtx target, int fcode)
+ 	 gen_highpart_mode generates code that isn't optimal.  */
+       rtx temp1 = gen_reg_rtx (d->mode);
+       rtx temp2 = gen_reg_rtx (DImode);
+-      temp1 = simplify_gen_subreg (d->mode, op2, quadmode,
+-				   subreg_lowpart_offset (d->mode, quadmode));
+      temp1 = force_lowpart_subreg (d->mode, op2, quadmode);
+       temp1 = force_subreg (V2DImode, temp1, d->mode, 0);
+       if (BYTES_BIG_ENDIAN)
+ 	emit_insn (gen_aarch64_get_lanev2di (temp2, temp1, const0_rtx));
+@@ -2754,7 +2752,7 @@ aarch64_expand_rwsr_builtin (tree exp, rtx target, int fcode)
+ 	case AARCH64_WSR64:
+ 	case AARCH64_WSRF64:
+ 	case AARCH64_WSR128:
+-	  subreg = lowpart_subreg (sysreg_mode, input_val, mode);
+	  subreg = force_lowpart_subreg (sysreg_mode, input_val, mode);
+ 	  break;
+ 	case AARCH64_WSRF:
+ 	  subreg = gen_lowpart_SUBREG (SImode, input_val);
+@@ -2789,7 +2787,8 @@ aarch64_expand_rwsr_builtin (tree exp, rtx target, int fcode)
+     case AARCH64_RSR64:
+     case AARCH64_RSRF64:
+     case AARCH64_RSR128:
+-      return lowpart_subreg (TYPE_MODE (TREE_TYPE (exp)), target, sysreg_mode);
+      return force_lowpart_subreg (TYPE_MODE (TREE_TYPE (exp)),
+				   target, sysreg_mode);
+     case AARCH64_RSRF:
+       subreg = gen_lowpart_SUBREG (SImode, target);
+       return gen_lowpart_SUBREG (SFmode, subreg);
+diff --git a/gcc/config/aarch64/aarch64-sve-builtins-base.cc b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+index 2c95da79572..3c970e9c5f8 100644
+--- a/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins-base.cc
+@@ -1183,7 +1183,7 @@ public:
+     if (BYTES_BIG_ENDIAN)
+       return e.use_exact_insn (code_for_aarch64_sve_set_neonq (mode));
+     insn_code icode = code_for_vcond_mask (mode, mode);
+-    e.args[1] = lowpart_subreg (mode, e.args[1], GET_MODE (e.args[1]));
+    e.args[1] = force_lowpart_subreg (mode, e.args[1], GET_MODE (e.args[1]));
+     e.add_output_operand (icode);
+     e.add_input_operand (icode, e.args[1]);
+     e.add_input_operand (icode, e.args[0]);
+diff --git a/gcc/config/aarch64/aarch64-sve-builtins-sme.cc b/gcc/config/aarch64/aarch64-sve-builtins-sme.cc
+index f4c91bcbb95..b66b35ae60b 100644
+--- a/gcc/config/aarch64/aarch64-sve-builtins-sme.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins-sme.cc
+@@ -112,7 +112,7 @@ add_load_store_slice_operand (function_expander &e, insn_code icode,
+   rtx base = e.args[argno];
+   if (e.mode_suffix_id == MODE_vnum)
+     {
+-      rtx vnum = lowpart_subreg (SImode, e.args[vnum_argno], DImode);
+      rtx vnum = force_lowpart_subreg (SImode, e.args[vnum_argno], DImode);
+       base = simplify_gen_binary (PLUS, SImode, base, vnum);
+     }
+   e.add_input_operand (icode, base);
+diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
+index 1beec94629d..a064aeecbc0 100644
+--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
+@@ -3284,7 +3284,7 @@ aarch64_sve_reinterpret (machine_mode mode, rtx x)
+   /* can_change_mode_class must only return true if subregs and svreinterprets
+      have the same semantics.  */
+   if (targetm.can_change_mode_class (GET_MODE (x), mode, FP_REGS))
+-    return lowpart_subreg (mode, x, GET_MODE (x));
+    return force_lowpart_subreg (mode, x, GET_MODE (x));
+ 
+   rtx res = gen_reg_rtx (mode);
+   x = force_reg (GET_MODE (x), x);
+@@ -26979,9 +26979,8 @@ aarch64_addti_scratch_regs (rtx op1, rtx op2, rtx *low_dest,
+ 			    rtx *high_in2)
+ {
+   *low_dest = gen_reg_rtx (DImode);
+-  *low_in1 = gen_lowpart (DImode, op1);
+-  *low_in2 = simplify_gen_subreg (DImode, op2, TImode,
+-				  subreg_lowpart_offset (DImode, TImode));
+  *low_in1 = force_lowpart_subreg (DImode, op1, TImode);
+  *low_in2 = force_lowpart_subreg (DImode, op2, TImode);
+   *high_dest = gen_reg_rtx (DImode);
+   *high_in1 = gen_highpart (DImode, op1);
+   *high_in2 = simplify_gen_subreg (DImode, op2, TImode,
+@@ -27013,11 +27012,8 @@ aarch64_subvti_scratch_regs (rtx op1, rtx op2, rtx *low_dest,
+ 			     rtx *high_in2)
+ {
+   *low_dest = gen_reg_rtx (DImode);
+-  *low_in1 = simplify_gen_subreg (DImode, op1, TImode,
+-				  subreg_lowpart_offset (DImode, TImode));
+-
+-  *low_in2 = simplify_gen_subreg (DImode, op2, TImode,
+-				  subreg_lowpart_offset (DImode, TImode));
+  *low_in1 = force_lowpart_subreg (DImode, op1, TImode);
+  *low_in2 = force_lowpart_subreg (DImode, op2, TImode);
+   *high_dest = gen_reg_rtx (DImode);
+ 
+   *high_in1 = simplify_gen_subreg (DImode, op1, TImode,
+diff --git a/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464_2.c b/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464_2.c
+new file mode 100644
+index 00000000000..f561c34f732
+--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/sve/acle/general/pr115464_2.c
+@@ -0,0 +1,11 @@
+/* { dg-options "-O2" } */
+
+#include <arm_neon.h>
+#include <arm_sve.h>
+#include <arm_neon_sve_bridge.h>
+
+svuint16_t
+convolve4_4_x (uint16x8x2_t permute_tbl, svuint16_t a)
+{
+    return svset_neonq_u16 (a, permute_tbl.val[1]);
+}
+-- 
+2.46.0
+
+
+From e21a377dea6edfaaa494f07974135e58ff66eef1 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Tue, 18 Jun 2024 12:22:31 +0100
+Subject: [PATCH 4/4] Add force_lowpart_subreg
+
+optabs had a local function called lowpart_subreg_maybe_copy
+that is very similar to the lowpart version of force_subreg.
+This patch adds a force_lowpart_subreg wrapper around
+force_subreg and uses it in optabs.cc.
+
+The only difference between the old and new functions is that
+the old one asserted success while the new one doesn't.
+It's common not to assert elsewhere when taking subregs;
+normally a null result is enough.
+
+Later patches will make more use of the new function.
+
+gcc/
+	* explow.h (force_lowpart_subreg): Declare.
+	* explow.cc (force_lowpart_subreg): New function.
+	* optabs.cc (lowpart_subreg_maybe_copy): Delete.
+	(expand_absneg_bit): Use force_lowpart_subreg instead of
+	lowpart_subreg_maybe_copy.
+	(expand_copysign_bit): Likewise.
+
+(cherry picked from commit 5f40d1c0cc6ce91ef28d326b8707b3f05e6f239c)
+---
+ gcc/explow.cc | 14 ++++++++++++++
+ gcc/explow.h  |  1 +
+ gcc/optabs.cc | 24 ++----------------------
+ 3 files changed, 17 insertions(+), 22 deletions(-)
+
+diff --git a/gcc/explow.cc b/gcc/explow.cc
+index f6843398c4b..5fdfa81f69b 100644
+--- a/gcc/explow.cc
+++ b/gcc/explow.cc
+@@ -760,6 +760,20 @@ force_subreg (machine_mode outermode, rtx op,
+   return simplify_gen_subreg (outermode, op, innermode, byte);
+ }
+ 
+/* Try to return an rvalue expression for the OUTERMODE lowpart of OP,
+   which has mode INNERMODE.  Allow OP to be forced into a new register
+   if necessary.
+
+   Return null on failure.  */
+
+rtx
+force_lowpart_subreg (machine_mode outermode, rtx op,
+		      machine_mode innermode)
+{
+  auto byte = subreg_lowpart_offset (outermode, innermode);
+  return force_subreg (outermode, op, innermode, byte);
+}
+
+ /* If X is a memory ref, copy its contents to a new temp reg and return
+    that reg.  Otherwise, return X.  */
+ 
+diff --git a/gcc/explow.h b/gcc/explow.h
+index cbd1fcb7eb3..dd654649b06 100644
+--- a/gcc/explow.h
+++ b/gcc/explow.h
+@@ -43,6 +43,7 @@ extern rtx copy_to_suggested_reg (rtx, rtx, machine_mode);
+ extern rtx force_reg (machine_mode, rtx);
+ 
+ extern rtx force_subreg (machine_mode, rtx, machine_mode, poly_uint64);
+extern rtx force_lowpart_subreg (machine_mode, rtx, machine_mode);
+ 
+ /* Return given rtx, copied into a new temp reg if it was in memory.  */
+ extern rtx force_not_mem (rtx);
+diff --git a/gcc/optabs.cc b/gcc/optabs.cc
+index ce91f94ed43..804c0dc73ba 100644
+--- a/gcc/optabs.cc
+++ b/gcc/optabs.cc
+@@ -3096,26 +3096,6 @@ expand_ffs (scalar_int_mode mode, rtx op0, rtx target)
+   return 0;
+ }
+ 
+-/* Extract the OMODE lowpart from VAL, which has IMODE.  Under certain
+-   conditions, VAL may already be a SUBREG against which we cannot generate
+-   a further SUBREG.  In this case, we expect forcing the value into a
+-   register will work around the situation.  */
+-
+-static rtx
+-lowpart_subreg_maybe_copy (machine_mode omode, rtx val,
+-			   machine_mode imode)
+-{
+-  rtx ret;
+-  ret = lowpart_subreg (omode, val, imode);
+-  if (ret == NULL)
+-    {
+-      val = force_reg (imode, val);
+-      ret = lowpart_subreg (omode, val, imode);
+-      gcc_assert (ret != NULL);
+-    }
+-  return ret;
+-}
+-
+ /* Expand a floating point absolute value or negation operation via a
+    logical operation on the sign bit.  */
+ 
+@@ -3204,7 +3184,7 @@ expand_absneg_bit (enum rtx_code code, scalar_float_mode mode,
+ 			   gen_lowpart (imode, op0),
+ 			   immed_wide_int_const (mask, imode),
+ 		           gen_lowpart (imode, target), 1, OPTAB_LIB_WIDEN);
+-      target = lowpart_subreg_maybe_copy (mode, temp, imode);
+      target = force_lowpart_subreg (mode, temp, imode);
+ 
+       set_dst_reg_note (get_last_insn (), REG_EQUAL,
+ 			gen_rtx_fmt_e (code, mode, copy_rtx (op0)),
+@@ -4043,7 +4023,7 @@ expand_copysign_bit (scalar_float_mode mode, rtx op0, rtx op1, rtx target,
+ 
+       temp = expand_binop (imode, ior_optab, op0, op1,
+ 			   gen_lowpart (imode, target), 1, OPTAB_LIB_WIDEN);
+-      target = lowpart_subreg_maybe_copy (mode, temp, imode);
+      target = force_lowpart_subreg (mode, temp, imode);
+     }
+ 
+   return target;
+-- 
+2.46.0
+
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+cat 1>&2 <<EOF
+*
+* gcc-go is used in Alpine for bootstrapping Go.
+* It is currently discouraged to use it for other purposes.
+*
+EOF
@@ -0,0 +1,56 @@
+Patch-Source: https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=3fe5720430a9ba61ed7562aac4d758cc77d49a28
+--
+From 3fe5720430a9ba61ed7562aac4d758cc77d49a28 Mon Sep 17 00:00:00 2001
+From: Jakub Jelinek <jakub@redhat.com>
+Date: Sat, 3 Aug 2024 20:37:54 +0200
+Subject: [PATCH] libquadmath: Fix up libquadmath/math/sqrtq.c compilation in
+ some powerpc* configurations [PR116007]
+
+My PR114623 change started using soft-fp.h and quad.h for the sqrtq implementation.
+Unfortunately, that seems to fail building in some powerpc* configurations, where
+TFmode isn't available.
+quad.h has:
+ #ifndef TFtype
+ typedef float TFtype __attribute__ ((mode (TF)));
+ #endif
+and uses TFtype.  quad.h has:
+ /* Define the complex type corresponding to __float128
+    ("_Complex __float128" is not allowed) */
+ #if (!defined(_ARCH_PPC)) || defined(__LONG_DOUBLE_IEEE128__)
+ typedef _Complex float __attribute__((mode(TC))) __complex128;
+ #else
+ typedef _Complex float __attribute__((mode(KC))) __complex128;
+ #endif
+with the conditional and KCmode use added during porting of libquadmath
+to powerpc*, so I've just defined TFtype for powerpc when __LONG_DOUBLE_IEEE128__
+isn't defined; I could define it to float __attribute__ ((mode (KF))) but it
+seemed easier to just define it to __float128 which should do the same thing.
+
+2024-08-03  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/116007
+	* math/sqrtq.c (TFtype): For PowerPC without __LONG_DOUBLE_IEEE128__
+	define to __float128 before including soft-fp.h and quad.h.
+
+(cherry picked from commit 3ac02e67503ccffa3dfeeffc0a60fce6bdaca43b)
+---
+ libquadmath/math/sqrtq.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/libquadmath/math/sqrtq.c b/libquadmath/math/sqrtq.c
+index 8ca2828d42ce..a58998a06670 100644
+--- a/libquadmath/math/sqrtq.c
+++ b/libquadmath/math/sqrtq.c
+@@ -9,6 +9,9 @@
+     && defined(FE_TOWARDZERO) \
+     && defined(FE_INEXACT)
+ #define USE_SOFT_FP 1
+#if defined(_ARCH_PPC) && !defined(__LONG_DOUBLE_IEEE128__)
+#define TFtype __float128
+#endif
+ #include "../../libgcc/soft-fp/soft-fp.h"
+ #include "../../libgcc/soft-fp/quad.h"
+ #endif
+-- 
+2.43.5
+
@@ -34,7 +34,7 @@ _pkgsnap="${pkgver##*_git}"
 [ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""

 pkgname=gcc-armv7
-pkgrel=4
+pkgrel=3
 pkgdesc="Stage2 cross-compiler for armv7"
 url="https://gcc.gnu.org"
 arch="x86_64"
@@ -44,10 +44,9 @@ depends="binutils-armv7 mpc1"
 makedepends_build="gcc g++ bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
 makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev musl-dev-armv7 binutils-armv7"
 subpackages="g++-armv7:gpp libstdc++-dev-armv7:libcxx_dev"
-[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-gdb gcc-doc"
+[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-gdb gcc-doc$_target"
 replaces="libstdc++ binutils"
-options="!strip !tracedeps"
-depends="$depends so:libc.musl-x86_64.so.1 so:libgcc_s.so.1 so:libgmp.so.10 so:libisl.so.23 so:libmpc.so.3 so:libmpfr.so.6 so:libstdc++.so.6 so:libz.so.1"
+options="!strip"

 : "${LANG_CXX:=true}"
 : "${LANG_D:=true}"
@@ -136,6 +135,7 @@ else
 	export CXXFLAGS_FOR_TARGET="$CXXFLAGS"
 	export LDFLAGS_FOR_TARGET="$LDFLAGS"
 	export BOOT_CFLAGS="$CFLAGS"
+	export BOOT_CXXFLAGS="$CXXFLAGS"
 	export BOOT_LDFLAGS="$LDFLAGS"
 fi

@@ -170,7 +170,7 @@ esac
 # currently on x86, x86_64 and ia64
 _libquadmath=$LANG_FORTRAN
 case "$CTARGET_ARCH" in
-x86 | x86_64 | ppc64le) ;;
+x86 | x86_64 | ppc64le)	_libquadmath=$LANG_FORTRAN ;;
 *)		_libquadmath=false ;;
 esac

@@ -218,12 +218,13 @@ if $LANG_FORTRAN; then
 	_languages="$_languages,fortran"
 fi
 if $LANG_ADA; then
-	subpackages="$subpackages gcc-gnat$_target:gnat libgnat::$CTARGET_ARCH"
+	subpackages="$subpackages gcc-gnat$_target:gnat"
 	_languages="$_languages,ada"
 	if [ "$CBUILD" = "$CTARGET" ]; then
 		makedepends_build="$makedepends_build gcc-gnat-bootstrap"
-		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH"
+		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH libgnat::$CTARGET_ARCH"
 	else
+		subpackages="$subpackages libgnat::$CTARGET_ARCH"
 		makedepends_build="$makedepends_build gcc-gnat gcc-gnat$_cross"
 	fi
 fi
@@ -233,7 +234,7 @@ fi
 makedepends="$makedepends_build $makedepends_host"

 # when using upstream releases, use this URI template
-# https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
+# https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
 #
 # right now, we are using a git snapshot. snapshots are taken from gcc.gnu.org/pub/gcc/snapshots.
 # However, since they are periodically deleted from the GCC mirrors the utilized snapshots are
@@ -243,7 +244,7 @@ makedepends="$makedepends_build $makedepends_host"
 # PLEASE submit all patches to gcc to https://gitlab.alpinelinux.org/kaniini/alpine-gcc-patches,
 # so that they can be properly tracked and easily rebased if needed.
 #source="https://dev.alpinelinux.org/archive/gcc/${_pkgbase%%.*}-$_pkgsnap/gcc-${_pkgbase%%.*}-$_pkgsnap.tar.xz
-source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
+source="https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
 	0001-posix_memalign.patch
 	0002-gcc-poison-system-directories.patch
 	0003-specs-turn-on-Wl-z-now-by-default.patch
@@ -282,7 +283,6 @@ source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
 	0036-libphobos-add-riscv64-and-loongarch64-support.patch
 	fix-arm64.patch
 	ppc64le-quadmath.patch
-	riscv64-improve-build-time.patch
 	"

 # secfixes:
@@ -290,21 +290,44 @@ source="https://gcc.gnu.org/pub/gcc/releases/gcc-$_pkgbase/gcc-$_pkgbase.tar.xz
 #     - CVE-2023-4039

 # we build out-of-tree
-#builddir="$srcdir"/gcc-${_pkgbase%%.*}-$_pkgsnap
-builddir="$srcdir"/gcc-$_pkgbase
-_gcclibdir="/usr/lib/gcc/$CTARGET/$_pkgbase"
-_gcclibexec="/usr/libexec/gcc/$CTARGET/$_pkgbase"
+#_gccdir="$srcdir"/gcc-${_pkgbase%%.*}-$_pkgsnap
+_gccdir="$srcdir"/gcc-${_pkgbase:-$pkgver}
+_gcclibdir="/usr/lib/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+_gcclibexec="/usr/libexec/gcc/$CTARGET/${_pkgbase:-$pkgver}"

 prepare() {
-	default_prepare
-	echo $_pkgbase > gcc/BASE-VER
+	cd "$_gccdir"
+
+	_err=
+	for i in $source; do
+		case "$i" in
+		*.patch)
+			msg "Applying $i"
+			patch -p1 -i "$srcdir"/$i || _err="$_err $i"
+			;;
+		esac
+	done
+
+	if [ -n "$_err" ]; then
+		error "The following patches failed:"
+		for i in $_err; do
+			echo "  $i"
+		done
+		return 1
+	fi
+
+	echo ${_pkgbase:-$pkgver} > gcc/BASE-VER
 }

 build() {
 	local _arch_configure=
+	local _libc_configure=
 	local _bootstrap_configure=
+	local _symvers=
 	local _jit_configure=

+	cd "$_gccdir"
+
 	case "$CTARGET" in
 	aarch64-*-*-*)		_arch_configure="--with-arch=armv8-a --with-abi=lp64";;
 	armv5-*-*-*eabi)	_arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";;
@@ -328,7 +351,15 @@ build() {
 	*)	_hash_style_configure="--with-linker-hash-style=gnu" ;;
 	esac

-	export libat_cv_have_ifunc=no
+	case "$CTARGET_LIBC" in
+	musl)
+		# musl does not support libsanitizer
+		# alpine musl provides libssp_nonshared.a, so we don't need libssp either
+		_libc_configure="--disable-libssp --disable-libsanitizer"
+		_symvers="--disable-symvers"
+		export libat_cv_have_ifunc=no
+		;;
+	esac


 	case "$BOOTSTRAP" in
@@ -357,8 +388,10 @@ build() {
 	echo "  CHOST=$CHOST"
 	echo "  CTARGET=$CTARGET"
 	echo "  CTARGET_ARCH=$CTARGET_ARCH"
+	echo "  CTARGET_LIBC=$CTARGET_LIBC"
 	echo "  languages=$_languages"
 	echo "  arch_configure=$_arch_configure"
+	echo "  libc_configure=$_libc_configure"
 	echo "  cross_configure=$_cross_configure"
 	echo "  bootstrap_configure=$_bootstrap_configure"
 	echo "  hash_style_configure=$_hash_style_configure"
@@ -379,7 +412,7 @@ build() {
 		--disable-multilib
 		--disable-nls
 		--disable-werror
-		--disable-symvers
+		$_symvers
 		--enable-__cxa_atexit
 		--enable-default-pie
 		--enable-default-ssp
@@ -387,8 +420,7 @@ build() {
 		--enable-link-serialization=2
 		--enable-linker-build-id
 		$_arch_configure
-		--disable-libssp
-		--disable-libsanitizer
+		$_libc_configure
 		$_cross_configure
 		$_bootstrap_configure
 		--with-bugurl=https://gitlab.alpinelinux.org/alpine/aports/-/issues
@@ -398,7 +430,7 @@ build() {

 	mkdir -p "$_builddir"
 	cd "$_builddir"
-	"$builddir"/configure $gccconfiguration \
+	"$_gccdir"/configure $gccconfiguration \
 		--with-pkgversion="$version"

 	msg "building gcc"
@@ -414,7 +446,7 @@ build() {
 	if $LANG_JIT; then
 		mkdir -p "$_builddir"/libgccjit-build
 		cd "$_builddir"/libgccjit-build
-		"$builddir"/configure $gccconfiguration \
+		"$_gccdir"/configure $gccconfiguration \
 			--disable-bootstrap \
 			--enable-host-shared \
 			--enable-languages=jit \
@@ -429,7 +461,7 @@ package() {
 	cd "$_builddir"
 	make -j1 DESTDIR="$pkgdir" install

-	[ "$CHOST" = "$CTARGET" ] && ln -s gcc "$pkgdir"/usr/bin/cc
+	ln -s gcc "$pkgdir"/usr/bin/cc
 	ln -s ${CTARGET}-gcc "$pkgdir"/usr/bin/${CTARGET}-cc

 	if $LANG_JIT; then
@@ -473,23 +505,25 @@ package() {

 	# move ada runtime libs
 	if $LANG_ADA; then
-		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 \( -name "libgna*.so" -o -name "libgna*.a" \) ); do
+		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.so"); do
 			mv "$i" "$pkgdir"/usr/lib/
 			ln -s ../../../../${i##*/} $i
 		done
+		if [ "$CHOST" = "$CTARGET" ]; then
+			for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.a"); do
+				mv "$i" "$pkgdir"/usr/lib/
+				ln -s ../../../../${i##*/} $i
+			done
+		fi
 	fi

 	if [ "$CHOST" != "$CTARGET" ]; then
 		# cross-gcc: remove any files that would conflict with the
 		# native gcc package
-		rm -rf "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
+		rm -rf "$pkgdir"/usr/bin/cc "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
 		# libcc1 does not depend on target, don't ship it
 		rm -rf "$pkgdir"/usr/lib/libcc1.so*

-		# These are moved into packages with arch=$CTARGET_ARCH so remove
-		# cross prefix
-		#mv "$pkgdir"/usr/$CTARGET/lib/*.so.* "$pkgdir"/usr/lib/ # FIXME
-
 		# fixup gcc library symlinks to be linker scripts so
 		# linker finds the libs from relocated sysroot
 		for so in "$pkgdir"/usr/"$CTARGET"/lib/*.so; do
@@ -538,7 +572,8 @@ libatomic() {
 	depends=
 	replaces="gcc"

-	amove usr/lib/libatomic.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libatomic.so.* "$subpkgdir"/usr/lib/
 }

 libcxx() {
@@ -551,7 +586,8 @@ libcxx() {
 		nm -D "$pkgdir"/usr/lib/libstdc++.so.* | grep clock_gettime
 	fi

-	amove usr/lib/libstdc++.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libstdc++.so.* "$subpkgdir"/usr/lib/
 }

 libcxx_dev() {
@@ -569,12 +605,15 @@ libcxx_dev() {

 gpp() {
 	pkgdesc="GNU C++ standard library and compiler"
-	depends="libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel musl-dev"
-	depends="$depends so:libc.musl-x86_64.so.1 so:libgmp.so.10 so:libisl.so.23 so:libmpc.so.3 so:libmpfr.so.6 so:libz.so.1"
-	[ "$CHOST" = "$CTARGET" ] && depends="$depends libstdc++=$_gccrel"
+	depends="libstdc++=$_gccrel libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel libc-dev"
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/usr/bin \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}include \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}lib \

-	amove $_gcclibexec/cc1plus
-	amove usr/bin/*++
+	mv "$pkgdir/$_gcclibexec/cc1plus" "$subpkgdir/$_gcclibexec/"
+
+	mv "$pkgdir"/usr/bin/*++ "$subpkgdir"/usr/bin/
 }

 jit() {
@@ -593,26 +632,30 @@ libobjc() {
 	pkgdesc="GNU Objective-C runtime"
 	replaces="objc"
 	depends=
-
-	amove usr/lib/libobjc.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libobjc.so.* "$subpkgdir"/usr/lib/
 }

 objc() {
 	pkgdesc="GNU Objective-C"
 	replaces="gcc"
-	depends="musl-dev gcc=$_gccrel libobjc=$_gccrel"
+	depends="libc-dev gcc=$_gccrel libobjc=$_gccrel"

-	amove $_gcclibexec/cc1obj
-	amove $_gcclibdir/include/objc
-	amove usr/lib/libobjc.so
-	amove usr/lib/libobjc.a
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include \
+		"$subpkgdir"/usr/lib
+	mv "$pkgdir/$_gcclibexec/cc1obj" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/objc "$subpkgdir"/$_gcclibdir/include/
+	mv "$pkgdir"/usr/lib/libobjc.so "$pkgdir"/usr/lib/libobjc.a \
+		"$subpkgdir"/usr/lib/
 }

 libgcc() {
 	pkgdesc="GNU C compiler runtime libraries"
 	depends=

-	amove usr/lib/libgcc_s.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgcc_s.so.* "$subpkgdir"/usr/lib/
 }

 libgomp() {
@@ -620,15 +663,17 @@ libgomp() {
 	depends=
 	replaces="gcc"

-	amove usr/lib/libgomp.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgomp.so.* "$subpkgdir"/usr/lib/
 }

 libgphobos() {
 	pkgdesc="D programming language standard library for GCC"
 	depends=

-	amove usr/lib/libgdruntime.so.*
-	amove usr/lib/libgphobos.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgdruntime.so.* "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.so.*  "$subpkgdir"/usr/lib/
 }

 gdc() {
@@ -637,26 +682,42 @@ gdc() {
 	[ "$CBUILD" = "$CTARGET" ] && depends="$depends libgphobos=$_gccrel"
 	[ "$CHOST" = "$CTARGET" ] && provides="gcc-gdc-bootstrap=$_gccrel"

+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include/d/ \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
 	# Copy: The installed '.d' files, the static lib, the binary itself
 	# The shared libs are part of 'libgphobos' so one can run program
 	# without installing the compiler
-	amove $_gcclibexec/d21
-	amove $_gcclibdir/include/d
+	mv "$pkgdir/$_gcclibexec/d21" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/d/* "$subpkgdir"/$_gcclibdir/include/d/
 	if [ "$CBUILD" = "$CTARGET" ]; then
-		amove usr/lib/libgdruntime.so
-		amove usr/lib/libgphobos.so
+		mv "$pkgdir"/usr/lib/libgdruntime.so "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.so "$subpkgdir"/usr/lib/
 	fi
-	amove usr/${_target:+$CTARGET/}lib/libgdruntime.a
-	amove usr/${_target:+$CTARGET/}lib/libgphobos.a
-	amove usr/${_target:+$CTARGET/}lib/libgphobos.spec
-	amove usr/bin/*gdc
+	if [ "$CHOST" = "$CTARGET" ]; then
+		mv "$pkgdir"/usr/lib/libgdruntime.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.a "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/lib/libgphobos.spec "$subpkgdir"/usr/lib/
+		mv "$pkgdir"/usr/bin/gdc "$subpkgdir"/usr/bin/
+	else
+		mkdir -p "$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgdruntime.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.a \
+			"$subpkgdir"/usr/$CTARGET/lib/
+		mv "$pkgdir"/usr/$CTARGET/lib/libgphobos.spec \
+			"$subpkgdir"/usr/$CTARGET/lib/
+	fi
+	mv "$pkgdir"/usr/bin/$CTARGET-gdc "$subpkgdir"/usr/bin/
 }

 libgo() {
 	pkgdesc="Go runtime library for GCC"
 	depends=

-	amove usr/lib/libgo.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgo.so.* "$subpkgdir"/usr/lib/
 }

 go() {
@@ -664,25 +725,31 @@ go() {
 	depends="gcc=$_gccrel libgo=$_gccrel !go"
 	install="$pkgname-go.post-install"

-	amove usr/lib/go
-	amove usr/bin/*go
-	amove usr/bin/*gofmt
-	amove $_gcclibexec/go1
-	amove $_gcclibexec/cgo
-	amove $_gcclibexec/buildid
-	amove $_gcclibexec/test2json
-	amove $_gcclibexec/vet
-	amove usr/lib/libgo.a
-	amove usr/lib/libgo.so
-	amove usr/lib/libgobegin.a
-	amove usr/lib/libgolibbegin.a
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/lib/go "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/bin/*gccgo "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/bin/*go "$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gofmt "$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/go1 "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/cgo "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/buildid "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/test2json "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/vet "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/usr/lib/libgo.a \
+		"$pkgdir"/usr/lib/libgo.so \
+		"$pkgdir"/usr/lib/libgobegin.a \
+		"$pkgdir"/usr/lib/libgolibbegin.a \
+		"$subpkgdir"/usr/lib/
 }

 libgfortran() {
 	pkgdesc="Fortran runtime library for GCC"
 	depends=

-	amove usr/lib/libgfortran.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgfortran.so.* "$subpkgdir"/usr/lib/
 }

 libquadmath() {
@@ -690,7 +757,8 @@ libquadmath() {
 	pkgdesc="128-bit math library for GCC"
 	depends=

-	amove usr/lib/libquadmath.so.*
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libquadmath.so.* "$subpkgdir"/usr/lib/
 }

 gfortran() {
@@ -699,30 +767,38 @@ gfortran() {
 	$_libquadmath && depends="$depends libquadmath=$_gccrel"
 	replaces="gcc"

-	amove usr/bin/*gfortran
-	amove usr/lib/libgfortran.a
-	amove usr/lib/libgfortran.so
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gfortran "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/lib/libgfortran.a \
+		"$pkgdir"/usr/lib/libgfortran.so \
+		"$subpkgdir"/usr/lib/
 	if $_libquadmath; then
-		amove usr/lib/libquadmath.a
-		amove usr/lib/libquadmath.so
+		mv "$pkgdir"/usr/lib/libquadmath.a \
+			"$pkgdir"/usr/lib/libquadmath.so \
+			"$subpkgdir"/usr/lib/
 	fi
-	amove $_gcclibdir/finclude
-	amove $_gcclibexec/f951
-	mv -v "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibdir/finclude "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibexec/f951 "$subpkgdir"/$_gcclibexec
+	mv "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir
 }

 libgnat() {
 	pkgdesc="GNU Ada runtime shared libraries"
 	depends=

-	amove usr/lib/libgna*.so
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.so "$subpkgdir"/usr/lib/
 }

 libgnatstatic() {
 	pkgdesc="GNU Ada static libraries"
 	depends=

-	amove usr/lib/libgna*.a
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.a "$subpkgdir"/usr/lib/
 }

 gnat() {
@@ -731,9 +807,12 @@ gnat() {
 	provides="$pkgname-gnat-bootstrap=$_gccrel"
 	[ "$CHOST" = "$CTARGET" ] && depends="$depends libgnat=$_gccrel"

-	amove $_gcclibexec/*gnat*
-	amove $_gcclibdir/*ada*
-	amove usr/bin/*gnat*
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/*gnat* "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibdir/*ada* "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/usr/bin/*gnat* "$subpkgdir"/usr/bin/
 }

 gdb() {
@@ -785,5 +864,4 @@ c4482ffc36e7894b2140800159f4cbc9a3e9011e43a69b69f4fa92d5a11e2ee645c7e21df4423dd1
 06f64544fd8bc4b6c8b06410c5198aa8fb4e82c232afc0cad83b2c69ac5d39399968206defa78297222700cd18e7fd7e8244afa76d343406a01f657c86306453  0036-libphobos-add-riscv64-and-loongarch64-support.patch
 00319c9770362520e8e93bd03fda1769dfa3622eba77d620e11d8af45a38e6d804a5e924046ae388e1cfaea605696e89c343fca507aaaa5edd58d80744fff14f  fix-arm64.patch
 815265826742400f86336f0c2d3e4edc37398dbc6505ee81107c0103c13ac0f406cff851438d2323033c6c6d0c0323765ee15b975eab8d1dd465f9e988168fb9  ppc64le-quadmath.patch
-ea55e0fa6813fc95c4ca2e87f059182edc54dc61515ebb92bf6eb31dbbd176d0fe81edcc7ea28d32f84ca37e8d48a544623d3d9bc94aa41ffc0859326a616aa2  riscv64-improve-build-time.patch
 "
@@ -1,149 +0,0 @@
-Patch-Source: https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=2cf89ae83225f932b226cd57ef2d083a59bcf8a3
--
-From 2cf89ae83225f932b226cd57ef2d083a59bcf8a3 Mon Sep 17 00:00:00 2001
-From: Richard Biener <rguenther@suse.de>
-Date: Tue, 6 Aug 2024 14:56:26 +0200
-Subject: [PATCH] tree-optimization/116166 - forward jump-threading going wild
-
-Currently the forward threader isn't limited as to the search space
-it explores and with it now using path-ranger for simplifying
-conditions it runs into it became pretty slow for degenerate cases
-like compiling insn-emit.cc for RISC-V esp. when compiling for
-a host with LOGICAL_OP_NON_SHORT_CIRCUIT disabled.
-
-The following makes the forward threader honor the search space
-limit I introduced for the backward threader.  This reduces
-compile-time from minutes to seconds for the testcase in PR116166.
-
-Note this wasn't necessary before we had ranger but with ranger
-the work we do is quadatic in the length of the threading path
-we build up (the same is true for the backwards threader).
-
-	PR tree-optimization/116166
-	* tree-ssa-threadedge.h (jump_threader::thread_around_empty_blocks):
-	Add limit parameter.
-	(jump_threader::thread_through_normal_block): Likewise.
-	* tree-ssa-threadedge.cc (jump_threader::thread_around_empty_blocks):
-	Honor and decrement limit parameter.
-	(jump_threader::thread_through_normal_block): Likewise.
-	(jump_threader::thread_across_edge): Initialize limit from
-	param_max_jump_thread_paths and pass it down to workers.
---
- gcc/tree-ssa-threadedge.cc | 30 ++++++++++++++++++++++--------
- gcc/tree-ssa-threadedge.h  |  4 ++--
- 2 files changed, 24 insertions(+), 10 deletions(-)
-
-diff --git a/gcc/tree-ssa-threadedge.cc b/gcc/tree-ssa-threadedge.cc
-index 7f82639b8ecc..0aa2aa851430 100644
--- a/gcc/tree-ssa-threadedge.cc
-+++ b/gcc/tree-ssa-threadedge.cc
-@@ -786,13 +786,17 @@ propagate_threaded_block_debug_into (basic_block dest, basic_block src)
- bool
- jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 					   edge taken_edge,
-					   bitmap visited)
-+					   bitmap visited, unsigned &limit)
- {
-   basic_block bb = taken_edge->dest;
-   gimple_stmt_iterator gsi;
-   gimple *stmt;
-   tree cond;
- 
-+  if (limit == 0)
-+    return false;
-+  --limit;
-+
-   /* The key property of these blocks is that they need not be duplicated
-      when threading.  Thus they cannot have visible side effects such
-      as PHI nodes.  */
-@@ -830,7 +834,8 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 	      m_registry->push_edge (path, taken_edge, EDGE_NO_COPY_SRC_BLOCK);
- 	      m_state->append_path (taken_edge->dest);
- 	      bitmap_set_bit (visited, taken_edge->dest->index);
-	      return thread_around_empty_blocks (path, taken_edge, visited);
-+	      return thread_around_empty_blocks (path, taken_edge, visited,
-+						 limit);
- 	    }
- 	}
- 
-@@ -872,7 +877,7 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
-       m_registry->push_edge (path, taken_edge, EDGE_NO_COPY_SRC_BLOCK);
-       m_state->append_path (taken_edge->dest);
- 
-      thread_around_empty_blocks (path, taken_edge, visited);
-+      thread_around_empty_blocks (path, taken_edge, visited, limit);
-       return true;
-     }
- 
-@@ -899,8 +904,13 @@ jump_threader::thread_around_empty_blocks (vec<jump_thread_edge *> *path,
- 
- int
- jump_threader::thread_through_normal_block (vec<jump_thread_edge *> *path,
-					    edge e, bitmap visited)
-+					    edge e, bitmap visited,
-+					    unsigned &limit)
- {
-+  if (limit == 0)
-+    return 0;
-+  limit--;
-+
-   m_state->register_equivs_edge (e);
- 
-   /* PHIs create temporary equivalences.
-@@ -989,7 +999,7 @@ jump_threader::thread_through_normal_block (vec<jump_thread_edge *> *path,
-  	     visited.  This may be overly conservative.  */
- 	  bitmap_set_bit (visited, dest->index);
- 	  bitmap_set_bit (visited, e->dest->index);
-	  thread_around_empty_blocks (path, taken_edge, visited);
-+	  thread_around_empty_blocks (path, taken_edge, visited, limit);
- 	  return 1;
- 	}
-     }
-@@ -1075,9 +1085,12 @@ jump_threader::thread_across_edge (edge e)
-   bitmap_set_bit (visited, e->src->index);
-   bitmap_set_bit (visited, e->dest->index);
- 
-+  /* Limit search space.  */
-+  unsigned limit = param_max_jump_thread_paths;
-+
-   int threaded = 0;
-   if ((e->flags & EDGE_DFS_BACK) == 0)
-    threaded = thread_through_normal_block (path, e, visited);
-+    threaded = thread_through_normal_block (path, e, visited, limit);
- 
-   if (threaded > 0)
-     {
-@@ -1148,11 +1161,12 @@ jump_threader::thread_across_edge (edge e)
- 	m_registry->push_edge (path, e, EDGE_START_JUMP_THREAD);
- 	m_registry->push_edge (path, taken_edge, EDGE_COPY_SRC_JOINER_BLOCK);
- 
-	found = thread_around_empty_blocks (path, taken_edge, visited);
-+	found = thread_around_empty_blocks (path, taken_edge, visited, limit);
- 
- 	if (!found)
- 	  found = thread_through_normal_block (path,
-					       path->last ()->e, visited) > 0;
-+					       path->last ()->e, visited,
-+					       limit) > 0;
- 
- 	/* If we were able to thread through a successor of E->dest, then
- 	   record the jump threading opportunity.  */
-diff --git a/gcc/tree-ssa-threadedge.h b/gcc/tree-ssa-threadedge.h
-index 9f6cbfe93307..245b3506a550 100644
--- a/gcc/tree-ssa-threadedge.h
-+++ b/gcc/tree-ssa-threadedge.h
-@@ -101,9 +101,9 @@ private:
- 					  unsigned limit);
- 
-   bool thread_around_empty_blocks (vec<class jump_thread_edge *> *path,
-				   edge, bitmap visited);
-+				   edge, bitmap visited, unsigned &limit);
-   int thread_through_normal_block (vec<jump_thread_edge *> *path,
-				   edge, bitmap visited);
-+				   edge, bitmap visited, unsigned &limit);
-   void thread_across_edge (edge);
-   bool record_temporary_equivalences_from_phis (edge);
-   gimple *record_temporary_equivalences_from_stmts_at_dest (edge);
-- 
-2.43.5
-
@@ -0,0 +1,42 @@
+From 47b4bd4deb2c356bb07d2a96f22127aefafec3a4 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Fri, 26 Jan 2018 20:32:50 +0000
+Subject: [PATCH 01/35] posix_memalign
+
+---
+ gcc/config/i386/pmm_malloc.h | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/i386/pmm_malloc.h b/gcc/config/i386/pmm_malloc.h
+index 3527283693b..c4071b64b53 100644
+--- a/gcc/config/i386/pmm_malloc.h
+++ b/gcc/config/i386/pmm_malloc.h
+@@ -27,12 +27,13 @@
+ #include <stdlib.h>
+ 
+ /* We can't depend on <stdlib.h> since the prototype of posix_memalign
+-   may not be visible.  */
+   may not be visible and we can't pollute the namespace either.  */
+ #ifndef __cplusplus
+-extern int posix_memalign (void **, size_t, size_t);
+extern int _mm_posix_memalign (void **, size_t, size_t)
+ #else
+-extern "C" int posix_memalign (void **, size_t, size_t) throw ();
+extern "C" int _mm_posix_memalign (void **, size_t, size_t) throw ()
+ #endif
+__asm__("posix_memalign");
+ 
+ static __inline void *
+ _mm_malloc (size_t __size, size_t __alignment)
+@@ -42,7 +43,7 @@ _mm_malloc (size_t __size, size_t __alignment)
+     return malloc (__size);
+   if (__alignment == 2 || (sizeof (void *) == 8 && __alignment == 4))
+     __alignment = sizeof (void *);
+-  if (posix_memalign (&__ptr, __alignment, __size) == 0)
+  if (_mm_posix_memalign (&__ptr, __alignment, __size) == 0)
+     return __ptr;
+   else
+     return NULL;
+-- 
+2.41.0
+
@@ -0,0 +1,203 @@
+From 4fa620d8c3e6730211bfb071eb4c817320491bd0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH 02/35] gcc: poison-system-directories
+
+Add /sw/include and /opt/include based on the original
+zecke-no-host-includes.patch patch.  The original patch checked for
+/usr/include, /sw/include and /opt/include and then triggered a failure and
+aborted.
+
+Instead, we add the two missing items to the current scan.  If the user
+wants this to be a failure, they can add "-Werror=poison-system-directories".
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/common.opt      |  4 ++++
+ gcc/config.in       |  6 ++++++
+ gcc/configure       | 16 ++++++++++++++++
+ gcc/configure.ac    | 10 ++++++++++
+ gcc/doc/invoke.texi |  9 +++++++++
+ gcc/gcc.cc          |  2 ++
+ gcc/incpath.cc      | 21 +++++++++++++++++++++
+ 7 files changed, 68 insertions(+)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 862c474d3c8..64c4277c991 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -711,6 +711,10 @@ Wreturn-local-addr
+ Common Var(warn_return_local_addr) Init(1) Warning
+ Warn about returning a pointer/reference to a local or temporary variable.
+ 
+Wpoison-system-directories
+Common Var(flag_poison_system_directories) Init(1) Warning
+Warn for -I and -L options using system directories if cross compiling
+
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one variable shadows another.  Same as -Wshadow=global.
+diff --git a/gcc/config.in b/gcc/config.in
+index 4cad077bfbe..0679fbbf4c6 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -236,6 +236,12 @@
+ #endif
+ 
+ 
+/* Define to warn for use of native system header directories */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_POISON_SYSTEM_DIRECTORIES
+#endif
+
+
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+diff --git a/gcc/configure b/gcc/configure
+index c7b26d1927d..8c46369f73f 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -1026,6 +1026,7 @@ enable_maintainer_mode
+ enable_link_mutex
+ enable_link_serialization
+ enable_version_specific_runtime_libs
+enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1788,6 +1789,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
+  --enable-poison-system-directories
+                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -31753,6 +31756,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then :
+ fi
+ 
+ 
+# Check whether --enable-poison-system-directories was given.
+if test "${enable_poison_system_directories+set}" = set; then :
+  enableval=$enable_poison_system_directories;
+else
+  enable_poison_system_directories=no
+fi
+
+if test "x${enable_poison_system_directories}" = "xyes"; then
+
+$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
+
+fi
+
+ # Substitute configuration variables
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 09082e8ccae..5504bf6eb01 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7292,6 +7292,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
+AC_ARG_ENABLE([poison-system-directories],
+             AS_HELP_STRING([--enable-poison-system-directories],
+                            [warn for use of native system header directories]),,
+             [enable_poison_system_directories=no])
+if test "x${enable_poison_system_directories}" = "xyes"; then
+  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
+           [1],
+           [Define to warn for use of native system header directories])
+fi
+
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index af0e5933fdb..b6731a4673c 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -384,6 +384,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wpacked  -Wno-packed-bitfield-compat  -Wpacked-not-aligned  -Wpadded
+ -Wparentheses  -Wno-pedantic-ms-format
+ -Wpointer-arith  -Wno-pointer-compare  -Wno-pointer-to-int-cast
+-Wno-poison-system-directories
+ -Wno-pragmas  -Wno-prio-ctor-dtor  -Wredundant-decls
+ -Wrestrict  -Wno-return-local-addr  -Wreturn-type
+ -Wno-scalar-storage-order  -Wsequence-point
+@@ -8426,6 +8427,14 @@ made up of data only and thus requires no special treatment.  But, for
+ most targets, it is made up of code and thus requires the stack to be
+ made executable in order for the program to work properly.
+ 
+@opindex Wno-poison-system-directories
+@item -Wno-poison-system-directories
+Do not warn for @option{-I} or @option{-L} options using system
+directories such as @file{/usr/include} when cross compiling.  This
+option is intended for use in chroot environments when such
+directories contain the correct headers and libraries for the target
+system rather than the host.
+
+ @opindex Wfloat-equal
+ @opindex Wno-float-equal
+ @item -Wfloat-equal
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 16bb07f2cdc..33b56e721d2 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1177,6 +1187,8 @@ proper position among the other output files.  */
+    "-z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+    %{Wno-poison-system-directories:--no-poison-system-directories} \
+    %{Werror=poison-system-directories:--error-poison-system-directories} \
+     %{static|no-pie|static-pie:} %@{L*} %(link_libgcc) " \
+     VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
+     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+diff --git a/gcc/incpath.cc b/gcc/incpath.cc
+index 4d44321183f..0f3f071b44c 100644
+--- a/gcc/incpath.cc
+++ b/gcc/incpath.cc
+@@ -26,6 +26,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
+#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -399,6 +400,26 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
+
+#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
+  if (flag_poison_system_directories)
+    {
+       struct cpp_dir *p;
+
+       for (p = heads[INC_QUOTE]; p; p = p->next)
+         {
+          if ((!strncmp (p->name, "/usr/include", 12))
+              || (!strncmp (p->name, "/usr/local/include", 18))
+              || (!strncmp (p->name, "/usr/X11R6/include", 18))
+              || (!strncmp (p->name, "/sw/include", 11))
+              || (!strncmp (p->name, "/opt/include", 12)))
+            warning (OPT_Wpoison_system_directories,
+                     "include location \"%s\" is unsafe for "
+                     "cross-compilation",
+                     p->name);
+         }
+    }
+#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
+-- 
+2.41.0
+
@@ -0,0 +1,44 @@
+From ff4dd4ce33133e675b7bedc86b73357c04631cb9 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:45:49 +0000
+Subject: [PATCH 03/35] specs: turn on -Wl,-z,now by default
+
+Previously, we also used to turn on -z relro here, but we now build
+binutils with --enable-relro, which is functionally equivalent.
+
+Binutils does not appear to have a similar option for enabling -z
+now by default.
+---
+ gcc/doc/invoke.texi | 3 +++
+ gcc/gcc.cc          | 1 +
+ 2 files changed, 4 insertions(+)
+
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index b6731a4673c..f393c7846c6 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -17961,6 +17961,9 @@ For example, @option{-Wl,-Map,output.map} passes @option{-Map output.map} to the
+ linker.  When using the GNU linker, you can also get the same effect with
+ @option{-Wl,-Map=output.map}.
+ 
+NOTE: In Alpine Linux, for LDFLAGS, the option
+@option{-Wl,-z,now} is used.  To disable, use @option{-Wl,-z,nonow}.
+
+ @opindex u
+ @item -u @var{symbol}
+ Pretend the symbol @var{symbol} is undefined, to force linking of
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 33b56e721d2..f82fae23c22 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1144,6 +1144,7 @@ proper position among the other output files.  */
+    "%{flto|flto=*:%<fcompare-debug*} \
+     %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+   "-z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+     %{Wno-poison-system-directories:--no-poison-system-directories} \
+-- 
+2.41.0
+
@@ -0,0 +1,46 @@
+From 1b315235433701e4a974da259b8d651169ddc7ac Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:22 +0000
+Subject: [PATCH 04/35] Turn on -D_FORTIFY_SOURCE=2 by default for C, C++,
+ ObjC, ObjC++, if the optimization level is > 0
+
+---
+ gcc/c-family/c-cppbuiltin.cc | 4 ++++
+ gcc/doc/invoke.texi          | 6 ++++++
+ 2 files changed, 10 insertions(+)
+
+diff --git a/gcc/c-family/c-cppbuiltin.cc b/gcc/c-family/c-cppbuiltin.cc
+index 5d64625fcd7..868d69506e4 100644
+--- a/gcc/c-family/c-cppbuiltin.cc
+++ b/gcc/c-family/c-cppbuiltin.cc
+@@ -1546,6 +1546,10 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
+  /* Fortify Source enabled by default for optimization levels > 0 */
+  if (optimize)
+    builtin_define_with_int_value ("_FORTIFY_SOURCE", 2);
+
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index f393c7846c6..ef3c14a189e 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -11868,6 +11868,12 @@ also turns on the following optimization flags:
+ Please note the warning under @option{-fgcse} about
+ invoking @option{-O2} on programs that use computed gotos.
+ 
+NOTE: In Alpine Linux, @option{-D_FORTIFY_SOURCE=2} is
+set by default, and is activated when @option{-O} is set to 2 or higher.
+This enables additional compile-time and run-time checks for several libc
+functions.  To disable, specify either @option{-U_FORTIFY_SOURCE} or
+@option{-D_FORTIFY_SOURCE=0}.
+
+ @opindex O3
+ @item -O3
+ Optimize yet more.  @option{-O3} turns on all optimizations specified
+-- 
+2.41.0
+
@@ -0,0 +1,272 @@
+From 67c0f5789630b27149f60ff831999ef7c1dba5d5 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:56 +0000
+Subject: [PATCH 05/35] On linux targets pass --as-needed by default to the
+ linker, but always link the sanitizer libraries with --no-as-needed.
+
+---
+ gcc/config/aarch64/aarch64-linux.h |  1 +
+ gcc/config/alpha/linux-elf.h       |  2 +-
+ gcc/config/arm/linux-elf.h         |  1 +
+ gcc/config/gnu-user.h              |  6 +++---
+ gcc/config/i386/gnu-user.h         |  2 +-
+ gcc/config/i386/gnu-user64.h       |  1 +
+ gcc/config/ia64/linux.h            |  2 +-
+ gcc/config/mips/gnu-user.h         |  1 +
+ gcc/config/riscv/linux.h           |  1 +
+ gcc/config/rs6000/linux64.h        |  4 ++--
+ gcc/config/rs6000/sysv4.h          |  2 +-
+ gcc/config/s390/linux.h            |  2 +-
+ gcc/config/sparc/linux.h           |  2 +-
+ gcc/gcc.cc                         | 28 ++++++++++++++++++++--------
+ 14 files changed, 36 insertions(+), 19 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64-linux.h b/gcc/config/aarch64/aarch64-linux.h
+index 4277f03da2a..b131983a546 100644
+--- a/gcc/config/aarch64/aarch64-linux.h
+++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -35,6 +35,7 @@
+ #define CPP_SPEC "%{pthread:-D_REENTRANT}"
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*}		\
+   --as-needed					\
+    %{static:-Bstatic}				\
+    %{shared:-shared}				\
+    %{symbolic:-Bsymbolic}			\
+diff --git a/gcc/config/alpha/linux-elf.h b/gcc/config/alpha/linux-elf.h
+index 03f783f2ad1..d946e700dda 100644
+--- a/gcc/config/alpha/linux-elf.h
+++ b/gcc/config/alpha/linux-elf.h
+@@ -37,7 +37,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #define ELF_DYNAMIC_LINKER	GNU_USER_DYNAMIC_LINKER
+ 
+-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax}		\
+#define LINK_SPEC "-m elf64alpha --as-needed %{G*} %{relax:-relax}		\
+   %{O*:-O3} %{!O*:-O1}						\
+   %{shared:-shared}						\
+   %{!shared:							\
+diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
+index 7b7b7cbbe14..49c050c6f2c 100644
+--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
+@@ -70,6 +70,7 @@
+      %{rdynamic:-export-dynamic} \
+      %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+    -X \
+   --as-needed \
+    %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+    SUBTARGET_EXTRA_LINK_SPEC
+ 
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index eda8010b133..b26b17f2f2a 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -136,7 +136,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \
+   "%{static-libasan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBHWASAN_EARLY_SPEC
+ #define LIBHWASAN_EARLY_SPEC "%{!shared:libhwasan_preinit%O%s} " \
+   "%{static-libhwasan:%{!shared:" \
+@@ -146,12 +146,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBTSAN_EARLY_SPEC "%{!shared:libtsan_preinit%O%s} " \
+   "%{static-libtsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_EARLY_SPEC "%{!shared:liblsan_preinit%O%s} " \
+   "%{static-liblsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #endif
+ 
+ #undef TARGET_F951_OPTIONS
+diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h
+index a79b739089d..e0752673dff 100644
+--- a/gcc/config/i386/gnu-user.h
+++ b/gcc/config/i386/gnu-user.h
+@@ -68,7 +68,7 @@ along with GCC; see the file COPYING3.  If not see
+   { "link_emulation", GNU_USER_LINK_EMULATION },\
+   { "dynamic_linker", GNU_USER_DYNAMIC_LINKER }
+ 
+-#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \
+#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) --as-needed %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+       %{!static-pie: \
+diff --git a/gcc/config/i386/gnu-user64.h b/gcc/config/i386/gnu-user64.h
+index 3b63b99acf6..759bf0db86f 100644
+--- a/gcc/config/i386/gnu-user64.h
+++ b/gcc/config/i386/gnu-user64.h
+@@ -56,6 +56,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+                   "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
+                    %{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \
+                    %{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \
+  --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/ia64/linux.h b/gcc/config/ia64/linux.h
+index 5dfd428aa17..02656dad7fc 100644
+--- a/gcc/config/ia64/linux.h
+++ b/gcc/config/ia64/linux.h
+@@ -58,7 +58,7 @@ do {						\
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
+ 
+ #undef LINK_SPEC
+-#define LINK_SPEC "\
+#define LINK_SPEC " --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/mips/gnu-user.h b/gcc/config/mips/gnu-user.h
+index a4e5380b589..3cc61bce69f 100644
+--- a/gcc/config/mips/gnu-user.h
+++ b/gcc/config/mips/gnu-user.h
+@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3.  If not see
+ #undef GNU_USER_TARGET_LINK_SPEC
+ #define GNU_USER_TARGET_LINK_SPEC "\
+   %{G*} %{EB} %{EL} %{mips*} %{shared} \
+ -as-needed \
+   %{!shared: \
+     %{!static: \
+       %{rdynamic:-export-dynamic} \
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index 3e625e0f867..f8c2c351e5a 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -48,6 +48,7 @@ along with GCC; see the file COPYING3.  If not see
+   "%{mabi=ilp32:_ilp32}"
+ 
+ #define LINK_SPEC "\
+-as-needed \
+ -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
+ %{mno-relax:--no-relax} \
+ %{mbig-endian:-EB} \
+diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
+index 9e457033d11..08016bf224d 100644
+--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
+@@ -377,13 +377,13 @@ extern int dot_symbols;
+ 					   " -m elf64ppc")
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \
+   %(link_os_extra_spec32)"
+ 
+-#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \
+diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
+index ae932fc22f0..c8ff0c6dc8e 100644
+--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
+@@ -780,7 +780,7 @@ GNU_USER_TARGET_CC1_SPEC
+ #define GNU_USER_DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC "-m elf32ppclinux --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+ 
+diff --git a/gcc/config/s390/linux.h b/gcc/config/s390/linux.h
+index 02aa1edaff8..64df5801134 100644
+--- a/gcc/config/s390/linux.h
+++ b/gcc/config/s390/linux.h
+@@ -82,7 +82,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #undef  LINK_SPEC
+ #define LINK_SPEC \
+-  "%{m31:-m elf_s390}%{m64:-m elf64_s390} \
+  "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \
+    %{shared:-shared} \
+    %{!shared: \
+       %{static:-static} \
+diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
+index 0e33b3cac2c..c2f44546e62 100644
+--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
+@@ -81,7 +81,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+ #undef  LINK_SPEC
+-#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
+#define LINK_SPEC "-m elf32_sparc --as-needed %{shared:-shared} \
+   %{!mno-relax:%{!r:-relax}} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index f82fae23c22..da6417dd0d1 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -754,8 +754,11 @@ proper position among the other output files.  */
+ #ifdef LIBASAN_EARLY_SPEC
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
+-		     "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lasan " \
+		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -790,8 +793,11 @@ proper position among the other output files.  */
+ #ifdef LIBTSAN_EARLY_SPEC
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
+-		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -ltsan " \
+		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -808,8 +814,11 @@ proper position among the other output files.  */
+ #ifdef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
+-		     "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -llsan " \
+		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -824,8 +833,11 @@ proper position among the other output files.  */
+ #define STATIC_LIBUBSAN_LIBS \
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+-#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
+-		     "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lubsan " \
+		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+-- 
+2.41.0
+
@@ -0,0 +1,34 @@
+From bb25e8489384504cd59e4a2538720863da1fb29c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:47:43 +0000
+Subject: [PATCH 06/35] Enable -Wformat and -Wformat-security by default.
+
+---
+ gcc/c-family/c.opt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
+index a75038930ae..b98726f33ed 100644
+--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
+@@ -704,7 +704,7 @@ Warn about function calls with format strings that write past the end
+ of the destination region.  Same as -Wformat-overflow=1.
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions.
+ 
+ Wformat-signedness
+@@ -725,7 +725,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats.
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+ Warn about printf/scanf/strftime/strfmon format string anomalies.
+ 
+ Wformat-overflow=
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From 4a728ad48a7b437cc6f2697e26603bf648149f86 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:48:24 +0000
+Subject: [PATCH 07/35] Enable -Wtrampolines by default.
+
+---
+ gcc/common.opt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 64c4277c991..c24839d32bc 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -803,7 +803,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers.
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
+Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated.
+ 
+ Wtrivial-auto-var-init
+-- 
+2.41.0
+
@@ -0,0 +1,53 @@
+From 32f24560d0602f7735d5e9efd92fe3151bd72cea Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:49:40 +0000
+Subject: [PATCH 08/35] Disable ssp on -nostdlib, -nodefaultlibs and
+ -ffreestanding Change the buffer size.
+
+---
+ gcc/gcc.cc     | 8 +++++++-
+ gcc/params.opt | 2 +-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index da6417dd0d1..b5a6f200635 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -983,6 +983,12 @@ proper position among the other output files.  */
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+ #endif
+ 
+#ifdef ENABLE_DEFAULT_SSP
+#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} "
+#else
+#define NO_SSP_SPEC ""
+#endif
+
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1282,7 +1288,7 @@ static const char *cc1_options =
+  %{-version:--version}\
+  %{-help=*:--help=%*}\
+  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
+- %{fsyntax-only:-o %j} %{-param*}\
+ %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\
+  %{coverage:-fprofile-arcs -ftest-coverage}\
+  %{fprofile-arcs|fprofile-generate*|coverage:\
+    %{!fprofile-update=single:\
+diff --git a/gcc/params.opt b/gcc/params.opt
+index 823cdb2ff85..5b096899b40 100644
+--- a/gcc/params.opt
+++ b/gcc/params.opt
+@@ -1006,7 +1006,7 @@ Common Joined UInteger Var(param_ssa_name_def_chain_limit) Init(512) Param Optim
+ The maximum number of SSA_NAME assignments to follow in determining a value.
+ 
+ -param=ssp-buffer-size=
+-Common Joined UInteger Var(param_ssp_buffer_size) Init(8) IntegerRange(1, 65536) Param Optimization
+Common Joined UInteger Var(param_ssp_buffer_size) Init(4) IntegerRange(1, 65536) Param Optimization
+ The lower bound for a buffer to be considered for stack smashing protection.
+ 
+ -param=stack-clash-protection-guard-size=
+-- 
+2.41.0
+
@@ -0,0 +1,54 @@
+From c7ec8da7280d7f97f5543eb9ddeca7600aafc43c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:50:33 +0000
+Subject: [PATCH 09/35] Ensure that msgfmt doesn't encounter problems during
+ gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+---
+ libstdc++-v3/po/Makefile.am | 1 +
+ libstdc++-v3/po/Makefile.in | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/libstdc++-v3/po/Makefile.am b/libstdc++-v3/po/Makefile.am
+index 12d34910830..61b13762b71 100644
+--- a/libstdc++-v3/po/Makefile.am
+++ b/libstdc++-v3/po/Makefile.am
+@@ -38,6 +38,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+diff --git a/libstdc++-v3/po/Makefile.in b/libstdc++-v3/po/Makefile.in
+index 8e93445acd2..d6ff06e5ddb 100644
+--- a/libstdc++-v3/po/Makefile.in
+++ b/libstdc++-v3/po/Makefile.in
+@@ -561,6 +561,7 @@ uninstall-am:
+ 
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+-- 
+2.41.0
+
@@ -0,0 +1,28 @@
+From aaa029bcee68298695b7c4278c90b6bc320d098c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:52:07 +0000
+Subject: [PATCH 10/35] Don't declare asprintf if defined as a macro.
+
+---
+ include/libiberty.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/include/libiberty.h b/include/libiberty.h
+index 1d5c779fcff..19e3cb1e31c 100644
+--- a/include/libiberty.h
+++ b/include/libiberty.h
+@@ -652,8 +652,11 @@ extern void *bsearch_r (const void *, const void *,
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
+/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
+#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
+#endif
+ 
+ /* Like asprintf but allocates memory without fail. This works like
+    xmalloc.  */
+-- 
+2.41.0
+
@@ -0,0 +1,24 @@
+From 65e01e749205c9af218b01233cebd0077538d0ee Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:53:00 +0000
+Subject: [PATCH 11/35] libiberty: copy PIC objects during build process
+
+---
+ libiberty/Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
+index 72608f3e4a7..58356884728 100644
+--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
+@@ -265,6 +265,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
+	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
+-- 
+2.41.0
+
@@ -0,0 +1,57 @@
+From 453a815bf2844971a91eaef800af188d9e86b784 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:09:53 +0000
+Subject: [PATCH 12/35] libgcc_s
+
+---
+ gcc/config/i386/i386-expand.cc | 4 ++--
+ libgcc/config/i386/cpuinfo.c   | 6 +++---
+ libgcc/config/i386/t-linux     | 2 +-
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
+index 0d817fc3f3b..2e99db00db9 100644
+--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
+@@ -12691,10 +12691,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
+     {
+     case IX86_BUILTIN_CPU_INIT:
+       {
+-	/* Make it call __cpu_indicator_init in libgcc.  */
+	/* Make it call __cpu_indicator_init in libgcc.a.  */
+ 	tree call_expr, fndecl, type;
+ 	type = build_function_type_list (integer_type_node, NULL_TREE);
+-	fndecl = build_fn_decl ("__cpu_indicator_init", type);
+	fndecl = build_fn_decl ("__cpu_indicator_init_local", type);
+ 	call_expr = build_call_expr (fndecl, 0);
+ 	return expand_expr (call_expr, target, mode, EXPAND_NORMAL);
+       }
+diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
+index 50b6d8248a2..724ced402a1 100644
+--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
+@@ -63,7 +63,7 @@ __cpu_indicator_init (void)
+ 			     __cpu_features2);
+ }
+ 
+-#if defined SHARED && defined USE_ELF_SYMVER
+-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
+#ifndef SHARED
+int __cpu_indicator_init_local (void)
+  __attribute__ ((weak, alias ("__cpu_indicator_init")));
+ #endif
+diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux
+index 8506a635790..564296f788e 100644
+--- a/libgcc/config/i386/t-linux
+++ b/libgcc/config/i386/t-linux
+@@ -3,5 +3,5 @@
+ # t-slibgcc-elf-ver and t-linux
+ SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER $(CET_FLAGS)
+HOST_LIBGCC2_CFLAGS += -mlong-double-80 $(CET_FLAGS)
+ CRTSTUFF_T_CFLAGS += $(CET_FLAGS)
+-- 
+2.41.0
+
@@ -0,0 +1,85 @@
+From 7d7d12137c666761a8dd61179c9651b85dae9b41 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 7 Nov 2015 02:08:05 +0000
+Subject: [PATCH 13/35] nopie
+
+---
+ gcc/configure    | 27 +++++++++++++++++++++++++++
+ gcc/configure.ac | 13 +++++++++++++
+ 2 files changed, 40 insertions(+)
+
+diff --git a/gcc/configure b/gcc/configure
+index 23da7d55d..f38732bb2 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -34534,6 +34534,29 @@ rm -f core conftest.err conftest.$ac_objext \
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_no_pie" >&5
+ $as_echo "$gcc_cv_no_pie" >&6; }
+# Check if -nopie works.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5
+$as_echo_n "checking for -nopie option... " >&6; }
+if ${gcc_cv_nopie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  saved_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -nopie"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void) {return 0;}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  gcc_cv_nopie=yes
+else
+  gcc_cv_nopie=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+   LDFLAGS="$saved_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5
+$as_echo "$gcc_cv_nopie" >&6; }
+ 
+ if test x$enable_host_shared = xyes; then
+   PICFLAG=-fPIC
+@@ -34551,6 +34574,8 @@ if test x$enable_host_pie = xyes; then
+   LD_PICFLAG=-pie
+ elif test x$gcc_cv_no_pie = xyes; then
+   LD_PICFLAG=-no-pie
+elif test x$gcc_cv_nopie = xyes; then
+  LD_PICFLAG=-nopie
+ else
+   LD_PICFLAG=
+ fi
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index d7cf0b92c..db2e2c802 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7781,6 +7781,15 @@ AC_CACHE_CHECK([for -no-pie option],
+      [gcc_cv_no_pie=yes],
+      [gcc_cv_no_pie=no])
+    LDFLAGS="$saved_LDFLAGS"])
+# Check if -nopie works.
+AC_CACHE_CHECK([for -nopie option],
+  [gcc_cv_nopie],
+  [saved_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -nopie"
+   AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
+     [gcc_cv_nopie=yes],
+     [gcc_cv_nopie=no])
+   LDFLAGS="$saved_LDFLAGS"])
+ 
+ if test x$enable_host_shared = xyes; then
+   PICFLAG=-fPIC
+@@ -7798,6 +7807,8 @@ if test x$enable_host_pie = xyes; then
+   LD_PICFLAG=-pie
+ elif test x$gcc_cv_no_pie = xyes; then
+   LD_PICFLAG=-no-pie
+elif test x$gcc_cv_nopie = xyes; then
+  LD_PICFLAG=-nopie
+ else
+   LD_PICFLAG=
+ fi
+-- 
+2.41.0
+
@@ -0,0 +1,42 @@
+From dd5bb97c31a9f57034c70a7a18ba6e2e133084c7 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:16 +0000
+Subject: [PATCH 14/35] ada: fix shared linking
+
+---
+ gcc/ada/link.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/ada/link.c b/gcc/ada/link.c
+index f2126441208..22cfa9c641f 100644
+--- a/gcc/ada/link.c
+++ b/gcc/ada/link.c
+@@ -107,9 +107,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+    || defined (__NetBSD__) || defined (__OpenBSD__) \
+    || defined (__QNX__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
+@@ -129,9 +129,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+ 
+ #elif defined (__linux__) || defined (__GLIBC__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
+-- 
+2.41.0
+
@@ -0,0 +1,24 @@
+From 6bb5b7d9161d05f31b001d8211a9c63caf63fd2f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:43 +0000
+Subject: [PATCH 15/35] build: fix CXXFLAGS_FOR_BUILD passing
+
+---
+ Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.in b/Makefile.in
+index 06a9398e172..6ff2b3f9925 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -178,6 +178,7 @@ BUILD_EXPORTS = \
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
+	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From f0d9e00cac06689f64b214de7aee80d7116ef084 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:01:06 +0000
+Subject: [PATCH 16/35] add fortify-headers paths
+
+---
+ gcc/config/linux.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index e3aca79cccc..b3537b8fbeb 100644
+--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
+@@ -159,6 +159,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 2 },	\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 0 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
+ #else
+-- 
+2.41.0
+
@@ -0,0 +1,31 @@
+From 857db04f4f1a06e866551b4172fe8f27363f4a92 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
+Date: Fri, 21 Aug 2020 07:03:00 +0000
+Subject: [PATCH 17/35] Alpine musl package provides libssp_nonshared.a. We
+ link to it unconditionally, as otherwise we get link failures if some objects
+ are -fstack-protector built and final link happens with -fno-stack-protector.
+ This seems to be the common case when bootstrapping gcc, the piepatches do
+ not seem to fully fix the crosstoolchain and bootstrap sequence wrt.
+ stack-protector flag usage.
+
+---
+ gcc/gcc.cc | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index b5a6f200635..6cbb726599b 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -991,8 +991,7 @@ proper position among the other output files.  */
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+-		       "|fstack-protector-strong|fstack-protector-explicit:}"
+#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit" \
+-- 
+2.41.0
+
@@ -0,0 +1,69 @@
+From 5a8347e23ab13912b6edec2c6c6e3a101b017c79 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:03:42 +0000
+Subject: [PATCH 18/35] DP: Use --push-state/--pop-state for gold as well when
+ linking libtsan.
+
+---
+ gcc/gcc.cc | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 6cbb726599b..59390fd39d6 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -755,10 +755,10 @@ proper position among the other output files.  */
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libasan:--push-state --no-as-needed}" \
+ 		     " -lasan " \
+ 		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libasan:--pop-state}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -794,10 +794,10 @@ proper position among the other output files.  */
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libtsan:--push-state --no-as-needed}" \
+ 		     " -ltsan " \
+ 		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libtsan:--pop-state}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -815,10 +815,10 @@ proper position among the other output files.  */
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-liblsan:--push-state --no-as-needed}" \
+ 		     " -llsan " \
+ 		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-liblsan:--pop-state}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -834,10 +834,10 @@ proper position among the other output files.  */
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+ #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libubsan:--push-state --no-as-needed}" \
+ 		     " -lubsan " \
+ 		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libubsan:--pop-state}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+-- 
+2.41.0
+
@@ -0,0 +1,26 @@
+From 41d00a2eb0754acf71958808bd17dbebeb517b84 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:12:55 +0000
+Subject: [PATCH 19/35] aarch64: disable multilib support
+
+multilib is unsupported on Alpine GCC
+---
+ gcc/config/aarch64/t-aarch64-linux | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/aarch64/t-aarch64-linux b/gcc/config/aarch64/t-aarch64-linux
+index 57bf4100fcd..172894b57ef 100644
+--- a/gcc/config/aarch64/t-aarch64-linux
+++ b/gcc/config/aarch64/t-aarch64-linux
+@@ -22,7 +22,7 @@ LIB1ASMSRC   = aarch64/lib1funcs.asm
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+ AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
+MULTILIB_OSDIRNAMES = mabi.lp64=../lib
+ MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+ MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From 85b42bfbba71616831d14360b16998acb28790fd Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:13:59 +0000
+Subject: [PATCH 20/35] s390x: disable multilib support
+
+multilib is not supported on Alpine GCC at present
+---
+ gcc/config/s390/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/s390/t-linux64 b/gcc/config/s390/t-linux64
+index cc6ab367072..7f498ee1cdc 100644
+--- a/gcc/config/s390/t-linux64
+++ b/gcc/config/s390/t-linux64
+@@ -7,5 +7,5 @@
+ 
+ MULTILIB_OPTIONS = m64/m31
+ MULTILIB_DIRNAMES = 64 32
+-MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu)
+-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+-- 
+2.41.0
+
@@ -0,0 +1,81 @@
+From 7b53df284242638e940c0155b6c21e88cea1f55b Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:33 +0000
+Subject: [PATCH 21/35] ppc64[le]: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/rs6000/t-linux       | 6 ++++--
+ gcc/config/rs6000/t-linux64     | 4 ++--
+ gcc/config/rs6000/t-linux64bele | 4 ++--
+ gcc/config/rs6000/t-linux64lebe | 4 ++--
+ 4 files changed, 10 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/config/rs6000/t-linux b/gcc/config/rs6000/t-linux
+index 4e371255533..128c75c7d39 100644
+--- a/gcc/config/rs6000/t-linux
+++ b/gcc/config/rs6000/t-linux
+@@ -2,7 +2,8 @@
+ # or soft-float.
+ ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
+ ifneq (,$(findstring powerpc64,$(target)))
+-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ else
+ MULTIARCH_DIRNAME := $(call if_multiarch,powerpc-linux-gnu)
+ endif
+@@ -10,7 +11,8 @@ ifneq (,$(findstring powerpcle,$(target)))
+ MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME))
+ endif
+ ifneq (,$(findstring powerpc64le,$(target)))
+-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ endif
+ endif
+ 
+diff --git a/gcc/config/rs6000/t-linux64 b/gcc/config/rs6000/t-linux64
+index 01a94242308..b3a76379c03 100644
+--- a/gcc/config/rs6000/t-linux64
+++ b/gcc/config/rs6000/t-linux64
+@@ -28,8 +28,8 @@
+ MULTILIB_OPTIONS    := m64/m32
+ MULTILIB_DIRNAMES   := 64 32
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.cc
+ 	$(COMPILE) $<
+diff --git a/gcc/config/rs6000/t-linux64bele b/gcc/config/rs6000/t-linux64bele
+index 97c1ee6fb4d..08d72639cb6 100644
+--- a/gcc/config/rs6000/t-linux64bele
+++ b/gcc/config/rs6000/t-linux64bele
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mlittle
+ MULTILIB_DIRNAMES   += le
+-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+diff --git a/gcc/config/rs6000/t-linux64lebe b/gcc/config/rs6000/t-linux64lebe
+index 2e63bdb9fc9..c6e1c5db65d 100644
+--- a/gcc/config/rs6000/t-linux64lebe
+++ b/gcc/config/rs6000/t-linux64lebe
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mbig
+ MULTILIB_DIRNAMES   += be
+-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+-- 
+2.41.0
+
@@ -0,0 +1,26 @@
+From 96e7e1e9a899d9bb5fcbdf788bd529d0390c626f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:54 +0000
+Subject: [PATCH 22/35] x86_64: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/i386/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
+index 138956b0962..bc03dab874f 100644
+--- a/gcc/config/i386/t-linux64
+++ b/gcc/config/i386/t-linux64
+@@ -33,6 +33,6 @@
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+ MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
+-- 
+2.41.0
+
@@ -0,0 +1,76 @@
+From b26224acf342eacb33491f6ea0da1faf73d35715 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Mon, 3 Jan 2022 07:14:48 +0100
+Subject: [PATCH 23/35] riscv: disable multilib support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From the musl wiki [1]:
+
+	musl does not support sharing an include directory between archs
+	[…], and thus is not compatible with GCC-style multilib. It is
+	recommended that distributions build GCC with multilib disabled,
+	and use library directories named lib, not lib64 or lib32.
+
+For this reason, we patch existing GCC configuration files (gcc/config)
+to pin MULTILIB_OSDIRNAMES to lib, there is also a corresponding GCC
+upstream bug about this issue [2]. Avoiding the use of lib64 and lib32
+directories is a bit more difficult on the RISC-V architecture. This is
+due to the fact that the default RISC-V configuration does not only use
+the lib64 and lib32 directories but also subdirectories within these
+directories for different RISC-V ABIs (e.g. lp64d, lp64, …) [3].
+
+This patch aligns the RISC-V configuration with other architectures by
+pinning MULTILIB_OSDIRNAMES to lib for rv64gc (our default RISC-V
+-march). Furthermore, this patch removes the ABI-specific startfile
+prefix spec. Since both of these impact the default LIBRARY_PATH [4]
+this patch thereby aligns the default RISC-V LIBRARY_PATH with that from
+other Alpine architectures and thereby fixes #13369 [5].
+
+Incidentally, this also fixes gccgo on riscv64, as without this patch
+gccgo is otherwise not able to find the *.gox files for the Go standard
+library.
+
+[1]: https://wiki.musl-libc.org/guidelines-for-distributions.html#Multilib/multi_arch
+[2]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90077
+[3]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103889#c14
+[4]: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.c;h=d4c8746b0aa322286decf92aa72a12f0a393b655;hb=HEAD#l9122
+[5]: https://gitlab.alpinelinux.org/alpine/aports/-/issues/13369
+---
+ gcc/config/riscv/linux.h | 8 --------
+ gcc/config/riscv/t-linux | 7 +++++--
+ 2 files changed, 5 insertions(+), 10 deletions(-)
+
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index f8c2c351e5a..8d9881eadeb 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -60,11 +60,3 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{rdynamic:-export-dynamic} \
+ 	-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}}"
+-
+-#define STARTFILE_PREFIX_SPEC 			\
+-   "/lib" XLEN_SPEC "/" ABI_SPEC "/ "		\
+-   "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ "	\
+-   "/lib/ "					\
+-   "/usr/lib/ "
+-
+-#define RISCV_USE_CUSTOMISED_MULTI_LIB select_by_abi
+diff --git a/gcc/config/riscv/t-linux b/gcc/config/riscv/t-linux
+index 216d2776a18..1a8a863853e 100644
+--- a/gcc/config/riscv/t-linux
+++ b/gcc/config/riscv/t-linux
+@@ -1,3 +1,6 @@
+-# Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
+-MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
+MULTILIB_OPTIONS := march=rv64gc
+MULTILIB_DIRNAMES := rv64gc
+
+MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib,$(MULTILIB_DIRNAMES)))
+ MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
+MULTILIB_MATCHES := march?rv64gc=march?rv64imafdc
+-- 
+2.41.0
+
@@ -0,0 +1,51 @@
+From a72e0613f79f6b6867819317accb7a714031a08c Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:05:41 +0000
+Subject: [PATCH 24/35] always build libgcc_eh.a
+
+highly inspired by:
+  http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch
+---
+ libgcc/Makefile.in | 11 ++++++-----
+ 1 file changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
+index 6c4dc79ab71..023cede18a7 100644
+--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
+@@ -960,8 +960,9 @@ ifneq ($(LIBUNWIND),)
+ all: libunwind.a
+ endif
+ 
+all: libgcc_eh.a
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
+all: libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
+@@ -1163,10 +1164,6 @@ install-libunwind:
+ install-shared:
+ 	$(mkinstalldirs) $(DESTDIR)$(inst_libdir)
+ 
+-	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+-	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-
+ 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
+@@ -1183,6 +1180,10 @@ ifeq ($(enable_gcov),yes)
+ 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a
+ endif
+ 
+	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+
+ 	parts="$(INSTALL_PARTS)";				\
+ 	for file in $$parts; do					\
+ 	  rm -f $(DESTDIR)$(inst_libdir)/$$file;		\
+-- 
+2.41.0
+
@@ -0,0 +1,135 @@
+From 3ee8cbc1cad261b30d4a7a66d31496d5f243ce2f Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:06:30 +0000
+Subject: [PATCH 25/35] ada: libgnarl compatibility for musl
+
+---
+ gcc/ada/libgnarl/s-osinte__linux.ads | 11 ------
+ gcc/ada/libgnarl/s-taprop__linux.adb | 53 ++--------------------------
+ 2 files changed, 3 insertions(+), 61 deletions(-)
+
+diff --git a/gcc/ada/libgnarl/s-osinte__linux.ads b/gcc/ada/libgnarl/s-osinte__linux.ads
+index a5e645d334d..32165347071 100644
+--- a/gcc/ada/libgnarl/s-osinte__linux.ads
+++ b/gcc/ada/libgnarl/s-osinte__linux.ads
+@@ -403,12 +403,6 @@ package System.OS_Interface is
+    PTHREAD_RWLOCK_PREFER_WRITER_NP              : constant := 1;
+    PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP : constant := 2;
+ 
+-   function pthread_rwlockattr_setkind_np
+-     (attr : access pthread_rwlockattr_t;
+-      pref : int) return int;
+-   pragma Import
+-     (C, pthread_rwlockattr_setkind_np, "pthread_rwlockattr_setkind_np");
+-
+    function pthread_rwlock_init
+      (mutex : access pthread_rwlock_t;
+       attr  : access pthread_rwlockattr_t) return int;
+@@ -470,11 +464,6 @@ package System.OS_Interface is
+       protocol : int) return int;
+    pragma Import (C, pthread_mutexattr_setprotocol);
+ 
+-   function pthread_mutexattr_setprioceiling
+-     (attr        : access pthread_mutexattr_t;
+-      prioceiling : int) return int;
+-   pragma Import (C, pthread_mutexattr_setprioceiling);
+-
+    type struct_sched_param is record
+       sched_priority : int;  --  scheduling priority
+    end record;
+diff --git a/gcc/ada/libgnarl/s-taprop__linux.adb b/gcc/ada/libgnarl/s-taprop__linux.adb
+index 821ceef30e4..ae95b58e01e 100644
+--- a/gcc/ada/libgnarl/s-taprop__linux.adb
+++ b/gcc/ada/libgnarl/s-taprop__linux.adb
+@@ -198,9 +198,6 @@ package body System.Task_Primitives.Operations is
+    pragma Import
+      (C, GNAT_pthread_condattr_setup, "__gnat_pthread_condattr_setup");
+ 
+-   function GNAT_has_cap_sys_nice return C.int;
+-   pragma Import
+-     (C, GNAT_has_cap_sys_nice, "__gnat_has_cap_sys_nice");
+    --  We do not have pragma Linker_Options ("-lcap"); here, because this
+    --  library is not present on many Linux systems. 'libcap' is the Linux
+    --  "capabilities" library, called by __gnat_has_cap_sys_nice.
+@@ -210,38 +207,6 @@ package body System.Task_Primitives.Operations is
+    --  Convert Ada priority to Linux priority. Priorities are 1 .. 99 on
+    --  GNU/Linux, so we map 0 .. 98 to 1 .. 99.
+ 
+-   function Get_Ceiling_Support return Boolean;
+-   --  Get the value of the Ceiling_Support constant (see below).
+-   --  Note well: If this function or related code is modified, it should be
+-   --  tested by hand, because automated testing doesn't exercise it.
+-
+-   -------------------------
+-   -- Get_Ceiling_Support --
+-   -------------------------
+-
+-   function Get_Ceiling_Support return Boolean is
+-      Ceiling_Support : Boolean := False;
+-   begin
+-      if Locking_Policy /= 'C' then
+-         return False;
+-      end if;
+-
+-      declare
+-         function geteuid return Integer;
+-         pragma Import (C, geteuid, "geteuid");
+-         Superuser : constant Boolean := geteuid = 0;
+-         Has_Cap : constant C.int := GNAT_has_cap_sys_nice;
+-         pragma Assert (Has_Cap in 0 | 1);
+-      begin
+-         Ceiling_Support := Superuser or else Has_Cap = 1;
+-      end;
+-
+-      return Ceiling_Support;
+-   end Get_Ceiling_Support;
+-
+-   pragma Warnings (Off, "non-preelaborable call not allowed*");
+-   Ceiling_Support : constant Boolean := Get_Ceiling_Support;
+-   pragma Warnings (On, "non-preelaborable call not allowed*");
+    --  True if the locking policy is Ceiling_Locking, and the current process
+    --  has permission to use this policy. The process has permission if it is
+    --  running as 'root', or if the capability was set by the setcap command,
+@@ -344,7 +309,9 @@ package body System.Task_Primitives.Operations is
+    -- Init_Mutex --
+    ----------------
+ 
+   pragma Warnings (Off, "formal parameter * is not referenced");
+    function Init_Mutex (L : RTS_Lock_Ptr; Prio : Any_Priority) return C.int is
+   pragma Warnings (On, "formal parameter * is not referenced");
+       Mutex_Attr : aliased pthread_mutexattr_t;
+       Result, Result_2 : C.int;
+ 
+@@ -356,16 +323,7 @@ package body System.Task_Primitives.Operations is
+          return Result;
+       end if;
+ 
+-      if Ceiling_Support then
+-         Result := pthread_mutexattr_setprotocol
+-           (Mutex_Attr'Access, PTHREAD_PRIO_PROTECT);
+-         pragma Assert (Result = 0);
+-
+-         Result := pthread_mutexattr_setprioceiling
+-           (Mutex_Attr'Access, Prio_To_Linux_Prio (Prio));
+-         pragma Assert (Result = 0);
+-
+-      elsif Locking_Policy = 'I' then
+      if Locking_Policy = 'I' then
+          Result := pthread_mutexattr_setprotocol
+            (Mutex_Attr'Access, PTHREAD_PRIO_INHERIT);
+          pragma Assert (Result = 0);
+@@ -405,11 +363,6 @@ package body System.Task_Primitives.Operations is
+             Result := pthread_rwlockattr_init (RWlock_Attr'Access);
+             pragma Assert (Result = 0);
+ 
+-            Result := pthread_rwlockattr_setkind_np
+-              (RWlock_Attr'Access,
+-               PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+-            pragma Assert (Result = 0);
+-
+             Result := pthread_rwlock_init (L.RW'Access, RWlock_Attr'Access);
+ 
+             pragma Assert (Result in 0 | ENOMEM);
+-- 
+2.41.0
+
@@ -0,0 +1,247 @@
+From 3df4788c79c7429b196c7b284af2b4cf9a4b4f8d Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:07:48 +0000
+Subject: [PATCH 26/35] ada: musl support fixes
+
+---
+ gcc/ada/Makefile.rtl | 16 ++++++++--------
+ gcc/ada/adaint.c     | 34 +++++++++++++++++++---------------
+ gcc/ada/adaint.h     | 10 ++++------
+ gcc/ada/terminals.c  |  8 ++++----
+ 4 files changed, 35 insertions(+), 33 deletions(-)
+
+diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
+index 32cbdb692..463028fbe 100644
+--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
+@@ -1558,7 +1558,7 @@ ifeq ($(strip $(filter-out %86 linux%,$(target_cpu) $(target_os))),)
+   s-intman.adb<libgnarl/s-intman__posix.adb \
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   a-exetim.adb<libgnarl/a-exetim__posix.adb \
+   a-exetim.ads<libgnarl/a-exetim__default.ads \
+   s-linux.ads<libgnarl/s-linux.ads \
+@@ -2144,7 +2144,7 @@ ifeq ($(strip $(filter-out loongarch% linux%,$(target_cpu) $(target_os))),)
+   g-sercom.adb<libgnat/g-sercom__linux.adb \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   system.ads<libgnat/system-linux-loongarch.ads
+@@ -2232,7 +2232,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+   s-tasinf.adb<libgnarl/s-tasinf__linux.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   system.ads<libgnat/system-linux-ppc.ads
+@@ -2267,7 +2267,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+ endif
+ 
+ # ARM linux, GNU eabi
+-ifeq ($(strip $(filter-out arm% linux-gnueabi%,$(target_cpu) $(target_os))),)
+ifeq ($(strip $(filter-out arm% linux-gnueabi% linux-musleabi% linux-muslgnueabi%,$(target_cpu) $(target_os))),)
+   LIBGNAT_TARGET_PAIRS = \
+   a-intnam.ads<libgnarl/a-intnam__linux.ads \
+   s-inmaop.adb<libgnarl/s-inmaop__posix.adb \
+@@ -2311,7 +2311,7 @@ ifeq ($(strip $(filter-out aarch64% linux%,$(target_cpu) $(target_os))),)
+   s-intman.adb<libgnarl/s-intman__posix.adb \
+   s-linux.ads<libgnarl/s-linux.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   s-mudido.adb<libgnarl/s-mudido__affinity.adb \
+   s-osinte.ads<libgnarl/s-osinte__linux.ads \
+   s-osinte.adb<libgnarl/s-osinte__posix.adb \
+@@ -2488,7 +2488,7 @@ ifeq ($(strip $(filter-out %ia64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix-noaltstack.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+@@ -2592,7 +2592,7 @@ ifeq ($(strip $(filter-out %x86_64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(X86_64_TARGET_PAIRS) \
+   $(SIMD_PATH_TARGET_PAIRS) \
+@@ -2637,7 +2637,7 @@ ifeq ($(strip $(filter-out %x32 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(X86_64_TARGET_PAIRS) \
+   $(SIMD_PATH_TARGET_PAIRS) \
+diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
+index 74aa3c412..ef6118f37 100644
+--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
+@@ -94,6 +94,11 @@
+ #include <sys/param.h>
+ #include <sys/pstat.h>
+ #endif
+ 
+#if defined (linux) || defined(__linux__)
+#define _GNU_SOURCE 1
+#include <sched.h>
+#endif
+ 
+ #ifdef __PikeOS__
+ #define __BSD_VISIBLE 1
+@@ -3465,7 +3470,6 @@ __gnat_lwp_self (void)
+ #endif
+ 
+ #if defined (__linux__)
+-#include <sched.h>
+ 
+ /* glibc versions earlier than 2.7 do not define the routines to handle
+    dynamically allocated CPU sets. For these targets, we use the static
+@@ -3475,7 +3479,7 @@ __gnat_lwp_self (void)
+ 
+ /* Dynamic cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count)
+ {
+   return CPU_ALLOC (count);
+@@ -3488,33 +3492,33 @@ __gnat_cpu_alloc_size (size_t count)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+-  CPU_FREE (set);
+  CPU_FREE ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count, cpu_set_t *set)
+__gnat_cpu_zero (size_t count, void *set)
+ {
+-  CPU_ZERO_S (count, set);
+  CPU_ZERO_S (count, (cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET_S (cpu - 1, count, set);
+  CPU_SET_S (cpu - 1, count, (cpu_set_t *) set);
+ }
+ 
+ #else /* !CPU_ALLOC */
+ 
+ /* Static cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED)
+ {
+-  return (cpu_set_t *) xmalloc (sizeof (cpu_set_t));
+  return xmalloc (sizeof (cpu_set_t));
+ }
+ 
+ size_t
+@@ -3524,23 +3528,23 @@ __gnat_cpu_alloc_size (size_t count ATTRIBUTE_UNUSED)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+   free (set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+-  CPU_ZERO (set);
+  CPU_ZERO ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET (cpu - 1, set);
+  CPU_SET (cpu - 1, (cpu_set_t *) set);
+ }
+ #endif /* !CPU_ALLOC */
+ #endif /* __linux__ */
+diff --git a/gcc/ada/adaint.h b/gcc/ada/adaint.h
+index 0cbfd0e15..f97ed905b 100644
+--- a/gcc/ada/adaint.h
+++ b/gcc/ada/adaint.h
+@@ -319,13 +319,11 @@ extern void   *__gnat_lwp_self			   (void);
+ 
+ /* Routines for interface to required CPU set primitives */
+ 
+-#include <sched.h>
+-
+-extern cpu_set_t *__gnat_cpu_alloc                 (size_t);
+extern void * __gnat_cpu_alloc                 (size_t);
+ extern size_t __gnat_cpu_alloc_size                (size_t);
+-extern void   __gnat_cpu_free                  (cpu_set_t *);
+-extern void   __gnat_cpu_zero                      (size_t, cpu_set_t *);
+-extern void   __gnat_cpu_set                       (int, size_t, cpu_set_t *);
+extern void   __gnat_cpu_free                  (void *);
+extern void   __gnat_cpu_zero                      (size_t, void *);
+extern void   __gnat_cpu_set                       (int, size_t, void *);
+ #endif
+ 
+ #if defined (_WIN32)
+diff --git a/gcc/ada/terminals.c b/gcc/ada/terminals.c
+index 05af82c27..626ac35bc 100644
+--- a/gcc/ada/terminals.c
+++ b/gcc/ada/terminals.c
+@@ -1134,7 +1134,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ /* POSIX does not specify how to open the master side of a terminal.Several
+    methods are available (system specific):
+       1- using a cloning device (USE_CLONE_DEVICE)
+-      2- getpt                  (USE_GETPT)
+      2- posix_openpt           (USE_POSIX_OPENPT)
+       3- openpty                (USE_OPENPTY)
+ 
+    When using the cloning device method, the macro USE_CLONE_DEVICE should
+@@ -1148,7 +1148,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ #if defined (__APPLE__) || defined (BSD)
+ #define USE_OPENPTY
+ #elif defined (__linux__)
+-#define USE_GETPT
+#define USE_POSIX_OPENPT
+ #elif defined (__sun__)
+ #define USE_CLONE_DEVICE "/dev/ptmx"
+ #elif defined (_AIX)
+@@ -1197,8 +1197,8 @@ allocate_pty_desc (pty_desc **desc) {
+    int  master_fd   = -1;
+    char *slave_name = NULL;
+ 
+-#ifdef USE_GETPT
+-  master_fd = getpt ();
+#if defined(USE_POSIX_OPENPT)
+  master_fd = posix_openpt(O_RDWR | O_NOCTTY);
+ #elif defined (USE_OPENPTY)
+   status = openpty (&master_fd, &slave_fd, NULL, NULL, NULL);
+ #elif defined (USE_CLONE_DEVICE)
@@ -0,0 +1,256 @@
+From 7b50823d8a4131e5a55d2499a0f5a52b3d91eed2 Mon Sep 17 00:00:00 2001
+From: Drew DeVault <sir@cmpwn.com>
+Date: Wed, 9 Dec 2020 07:42:06 +0000
+Subject: [PATCH 27/35] configure: Add --enable-autolink-libatomic, use in
+ LINK_GCC_C_SEQUENCE_SPEC [PR81358]
+
+This fixes issues with RISC-V.
+---
+ Makefile.in           |  1 +
+ gcc/config.in         |  6 ++++++
+ gcc/config/gnu-user.h | 12 +++++++++++-
+ gcc/configure         | 31 ++++++++++++++++++++++++++++++-
+ gcc/configure.ac      | 21 +++++++++++++++++++++
+ gcc/doc/install.texi  |  8 ++++++++
+ gcc/doc/tm.texi       |  8 +++++++-
+ gcc/doc/tm.texi.in    |  8 +++++++-
+ gcc/gcc.cc            | 12 +++++++++++-
+ 9 files changed, 102 insertions(+), 5 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 6ff2b3f9925..394b105b271 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -235,6 +235,7 @@ HOST_EXPORTS = \
+ 	RANLIB_FOR_TARGET="$(RANLIB_FOR_TARGET)"; export RANLIB_FOR_TARGET; \
+ 	READELF_FOR_TARGET="$(READELF_FOR_TARGET)"; export READELF_FOR_TARGET; \
+ 	TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
+	TARGET_CONFIGDIRS="$(TARGET_CONFIGDIRS)"; export TARGET_CONFIGDIRS; \
+ 	HOST_LIBS="$(STAGE1_LIBS)"; export HOST_LIBS; \
+ 	GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ 	GMPINC="$(HOST_GMPINC)"; export GMPINC; \
+diff --git a/gcc/config.in b/gcc/config.in
+index 0679fbbf4c6..ee81139b385 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -118,6 +118,12 @@
+ #endif
+ 
+ 
+/* Define if libatomic should always be linked. */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_AUTOLINK_LIBATOMIC
+#endif
+
+
+ /* Define to 1 to specify that we are using the BID decimal floating point
+    format instead of DPD */
+ #ifndef USED_FOR_TARGET
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index b26b17f2f2a..3f64ea46180 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -109,8 +109,18 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ #define GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC \
+-  "%{static|static-pie:--start-group} %G %{!nolibc:%L} \
+  "%{static|static-pie:--start-group} %G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L} \
+    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
+ 
+ #undef LINK_GCC_C_SEQUENCE_SPEC
+diff --git a/gcc/configure b/gcc/configure
+index e59cbee1767..787c35d4e25 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -984,6 +984,7 @@ with_changes_root_url
+ enable_languages
+ with_multilib_list
+ with_multilib_generator
+enable_autolink_libatomic
+ with_zstd
+ with_zstd_include
+ with_zstd_lib
+@@ -1713,6 +1714,9 @@ Optional Features:
+   --disable-shared        don't provide a shared libgcc
+   --disable-gcov          don't provide libgcov and related host tools
+   --enable-languages=LIST specify which front-ends to build
+  --enable-autolink-libatomic
+                          enable automatic linking of libatomic (ignored if
+                          not built)
+   --disable-rpath         do not hardcode runtime library paths
+   --enable-sjlj-exceptions
+                           arrange to use setjmp/longjmp exception handling
+@@ -8329,7 +8333,6 @@ else
+ fi
+ 
+ 
+-
+ # Check whether --with-multilib-generator was given.
+ if test "${with_multilib_generator+set}" = set; then :
+   withval=$with_multilib_generator; :
+@@ -8337,6 +8340,32 @@ else
+   with_multilib_generator=default
+ fi
+ 
+# If libatomic is available, whether it should be linked automatically
+# Check whether --enable-autolink-libatomic was given.
+if test "${enable_autolink_libatomic+set}" = set; then :
+  enableval=$enable_autolink_libatomic;
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) as_fn_error $? "'$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'." "$LINENO" 5 ;;
+  esac
+
+else
+  enable_autolink_libatomic=''
+fi
+
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+
+$as_echo "#define ENABLE_AUTOLINK_LIBATOMIC 1" >>confdefs.h
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&5
+$as_echo "$as_me: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&2;}
+  fi
+fi
+
+ 
+ # -------------------------
+ # Checks for other programs
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 57268319de1..56bcaa87620 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -1199,6 +1199,27 @@ AC_ARG_WITH(multilib-generator,
+ :,
+ with_multilib_generator=default)
+ 
+# If libatomic is available, whether it should be linked automatically
+AC_ARG_ENABLE(autolink-libatomic,
+[AS_HELP_STRING([--enable-autolink-libatomic],
+		[enable automatic linking of libatomic (ignored if not built)])],
+[
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) AC_MSG_ERROR(['$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'.]) ;;
+  esac
+], [enable_autolink_libatomic=''])
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+    AC_DEFINE(ENABLE_AUTOLINK_LIBATOMIC, 1,
+	[Define if libatomic should always be linked.])
+  else
+    AC_MSG_WARN([libatomic is not build for this target, --enable-autolink-libatomic ignored])
+  fi
+fi
+
+ # -------------------------
+ # Checks for other programs
+ # -------------------------
+diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
+index b30d3691fe6..ccc8e5dbb00 100644
+--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
+@@ -2377,6 +2377,14 @@ files, but these changed header paths may conflict with some compilation
+ environments.  Enabled by default, and may be disabled using
+ @option{--disable-canonical-system-headers}.
+ 
+@item --enable-autolink-libatomic
+@itemx --disable-autolink-libatomic
+Tell GCC that it should automatically link libatomic; if supported by
+the linker, the file is only linked as needed. This flag is ignored
+when libatomic is not built. Note that this conigure flag is in particular
+useful when building an offloading-target compiler; as for those, a
+user had to specify @code{-foffload=target=-latomic} otherwise.
+
+ @item --with-glibc-version=@var{major}.@var{minor}
+ Tell GCC that when the GNU C Library (glibc) is used on the target it
+ will be version @var{major}.@var{minor} or later.  Normally this can
+diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
+index a660e33739b..6183c407a2b 100644
+--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
+index f7ab5d48a63..281540aba68 100644
+--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 59390fd39d6..dae1dd4cf79 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -974,13 +974,23 @@ proper position among the other output files.  */
+ # define ASM_DEBUG_OPTION_SPEC ""
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ /* Here is the spec for running the linker, after compiling all files.  */
+ 
+ /* This is overridable by the target in case they need to specify the
+    -lgcc and -lc order specially, yet not require them to override all
+    of LINK_COMMAND_SPEC.  */
+ #ifndef LINK_GCC_C_SEQUENCE_SPEC
+-#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L %G}"
+ #endif
+ 
+ #ifdef ENABLE_DEFAULT_SSP
+-- 
+2.41.0
+
@@ -0,0 +1,57 @@
+From 5bbbd320e54ab5341cfba83e8af98685131caba1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sun, 29 Aug 2021 12:23:34 +0200
+Subject: [PATCH 28/35] configure: fix detection of atomic builtins in
+ libatomic configure script
+
+Alpine's --enable-autolink-libatomic (which is enabled for riscv64 by
+default) causes the libatomic configure script to incorrectly detect
+which builtins are available on riscv64. This then causes incorrect code
+generation for libatomic since it assumes compiler builtins to be
+available which are not actually available on riscv64.
+
+This commit fixes this issue by disabling linking of libatomic configure
+test code entirely, thereby preventing linking against libatomic.
+
+See:
+
+* https://gitlab.alpinelinux.org/alpine/aports/-/issues/12948
+* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c6
+---
+ libatomic/configure.tgt | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt
+index a92ae9e8309..90b579ca4d8 100644
+--- a/libatomic/configure.tgt
+++ b/libatomic/configure.tgt
+@@ -30,6 +30,26 @@
+ # on ${target_cpu}.  For example to allow proper use of multilibs.
+ configure_tgt_pre_target_cpu_XCFLAGS="${XCFLAGS}"
+ 
+# The libatomic configure script performs several checks to determine
+# whether builtins for atomic operations are available. When compiling
+# with --enable-autolink-libatomic the test code compiled by the
+# configure script is also linked against libatomic. This causes it
+# to think that builtins are available, even if there are not, since
+# the tested symbols are provided by libatomic.
+#
+# This is a hack to ensure that we don't link against libatomic by not
+# linking any configure test code at all when --enable-autolink-libatomic
+# is given.
+#
+# See:
+#
+#   * https://gitlab.alpinelinux.org/alpine/aports/-/issues/12817
+#   * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c4
+#
+if test x$enable_autolink_libatomic = xyes; then
+	gcc_no_link=yes
+fi
+
+ case "${target_cpu}" in
+   alpha*)
+ 	# fenv.c needs this option to generate inexact exceptions.
+-- 
+2.41.0
+
@@ -0,0 +1,27 @@
+From 430c701a3cefbe09a9c7c8a2f5bbe957f9b2ecb2 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Thu, 30 Jun 2022 16:44:51 +0000
+Subject: [PATCH 29/35] libstdc++: do not throw exceptions for non-C locales on
+ musl targets
+
+---
+ libstdc++-v3/config/locale/generic/c_locale.cc | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/libstdc++-v3/config/locale/generic/c_locale.cc b/libstdc++-v3/config/locale/generic/c_locale.cc
+index 8849d78fdfa..aff467f98fe 100644
+--- a/libstdc++-v3/config/locale/generic/c_locale.cc
+++ b/libstdc++-v3/config/locale/generic/c_locale.cc
+@@ -242,9 +242,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+     // Currently, the generic model only supports the "C" locale.
+     // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html
+     __cloc = 0;
+-    if (strcmp(__s, "C"))
+-      __throw_runtime_error(__N("locale::facet::_S_create_c_locale "
+-			    "name not valid"));
+   }
+ 
+   void
+-- 
+2.41.0
+
@@ -0,0 +1,27 @@
+From 05f0043755f341a2ff4f845379327076b3e0203d Mon Sep 17 00:00:00 2001
+From: Mathias LANG <pro.mathias.lang@gmail.com>
+Date: Mon, 17 Jan 2022 03:49:21 +0000
+Subject: [PATCH 30/35] gdc: unconditionally link libgphobos against
+ libucontext
+
+ref: alpine/aports#13422
+---
+ Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 394b105b271..bc4a77fc300 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -52809,7 +52809,7 @@ configure-target-libphobos:
+ 	esac; \
+ 	module_srcdir=libphobos; \
+ 	rm -f no-such-file || : ; \
+-	CONFIG_SITE=no-such-file $(SHELL) \
+	CONFIG_SITE=no-such-file LIBS="-lucontext $$LIBS" $(SHELL) \
+ 	  $$s/$$module_srcdir/configure \
+ 	  --srcdir=$${topdir}/$$module_srcdir \
+ 	  $(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \
+-- 
+2.41.0
+
@@ -0,0 +1,54 @@
+From 0b89a74fbf77ae6917f043c79cd03db0d6ef0212 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sat, 16 Jul 2022 09:21:11 +0200
+Subject: [PATCH 31/35] druntime: link against libucontext on all platforms
+
+On musl-based Linux distributions, swapcontext etc. are not provided by
+musl but instead by libucontext. Hence, we _always_ need to link against
+an external library for these functions.
+---
+ libphobos/configure                | 8 --------
+ libphobos/m4/druntime/libraries.m4 | 8 --------
+ 2 files changed, 16 deletions(-)
+
+diff --git a/libphobos/configure b/libphobos/configure
+index 925c53c5f5e..60c2a0c11c6 100755
+--- a/libphobos/configure
+++ b/libphobos/configure
+@@ -15216,14 +15216,6 @@ fi
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[34567]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing swapcontext" >&5
+ $as_echo_n "checking for library containing swapcontext... " >&6; }
+diff --git a/libphobos/m4/druntime/libraries.m4 b/libphobos/m4/druntime/libraries.m4
+index 45a56f6f76a..fef6e890b1e 100644
+--- a/libphobos/m4/druntime/libraries.m4
+++ b/libphobos/m4/druntime/libraries.m4
+@@ -220,14 +220,6 @@ AC_DEFUN([DRUNTIME_LIBRARIES_UCONTEXT],
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[[34567]]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     AC_SEARCH_LIBS([swapcontext], [c ucontext], [],
+       AC_MSG_ERROR([swapcontext required but not found]))
+-- 
+2.41.0
+
@@ -0,0 +1,25 @@
+From eeec799f43fbd0bfffc13594585b39d708972511 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Tue, 19 Jul 2022 14:54:07 +0200
+Subject: [PATCH 32/35] libgnat: time_t is always 64-bit on musl libc
+
+---
+ gcc/ada/libgnat/s-parame.ads | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/ada/libgnat/s-parame.ads b/gcc/ada/libgnat/s-parame.ads
+index 3d6e345a1ba..cfe0b4d3ca6 100644
+--- a/gcc/ada/libgnat/s-parame.ads
+++ b/gcc/ada/libgnat/s-parame.ads
+@@ -102,7 +102,7 @@ package System.Parameters is
+    -- Characteristics of time_t type --
+    ------------------------------------
+ 
+-   time_t_bits : constant := Long_Integer'Size;
+   time_t_bits : constant := Long_Long_Integer'Size;
+    --  Number of bits in type time_t
+ 
+    ----------------------------------------------
+-- 
+2.41.0
+