mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-01-20 03:43:45 +00:00
d6d1897904
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80431 This bug annoys me because I hit it when working on Nix. It causes miscompilations in such a way that I am hard-pressed to think how a program could inadvertainly rely on the bug (such that it would be broken by the fix). The bug is longstanding, and the (quite small) applies without modification to many older GCCs. I have confirmed by running the test in that commit that does indeed fix the bug with the backports too.
304 lines
11 KiB
Nix
304 lines
11 KiB
Nix
{ lib, stdenv, targetPackages, fetchurl, fetchpatch, noSysDirs
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, langC ? true, langCC ? true, langFortran ? false
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, langAda ? false
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, langObjC ? stdenv.targetPlatform.isDarwin
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, langObjCpp ? stdenv.targetPlatform.isDarwin
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, langD ? false
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, langGo ? false
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, reproducibleBuild ? true
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, profiledCompiler ? false
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, langJit ? false
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, staticCompiler ? false
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, enableShared ? !stdenv.targetPlatform.isStatic
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, enableLTO ? !stdenv.hostPlatform.isStatic
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, texinfo ? null
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, perl ? null # optional, for texi2pod (then pod2man)
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, gmp, mpfr, libmpc, gettext, which, patchelf
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, isl ? null # optional, for the Graphite optimization framework.
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, zlib ? null
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, gnatboot ? null
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, enableMultilib ? false
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, enablePlugin ? stdenv.hostPlatform == stdenv.buildPlatform # Whether to support user-supplied plug-ins
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, name ? "gcc"
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, libcCross ? null
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, threadsCross ? null # for MinGW
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, crossStageStatic ? false
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, gnused ? null
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, cloog # unused; just for compat with gcc4, as we override the parameter on some places
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, buildPackages
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, libxcrypt
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}:
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# Make sure we get GNU sed.
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assert stdenv.buildPlatform.isDarwin -> gnused != null;
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# The go frontend is written in c++
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assert langGo -> langCC;
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assert langAda -> gnatboot != null;
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# threadsCross is just for MinGW
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assert threadsCross != {} -> stdenv.targetPlatform.isWindows;
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# profiledCompiler builds inject non-determinism in one of the compilation stages.
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# If turned on, we can't provide reproducible builds anymore
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assert reproducibleBuild -> profiledCompiler == false;
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with lib;
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with builtins;
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let majorVersion = "10";
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version = "${majorVersion}.4.0";
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inherit (stdenv) buildPlatform hostPlatform targetPlatform;
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patches = [
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# Fix https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80431
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(fetchurl {
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name = "fix-bug-80431.patch";
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url = "https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=de31f5445b12fd9ab9969dc536d821fe6f0edad0";
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sha256 = "0sd52c898msqg7m316zp0ryyj7l326cjcn2y19dcxqp15r74qj0g";
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})
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] ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
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++ optional noSysDirs ../no-sys-dirs.patch
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++ optional (noSysDirs && hostPlatform.isRiscV) ../no-sys-dirs-riscv.patch
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/* ++ optional (hostPlatform != buildPlatform) (fetchpatch { # XXX: Refine when this should be applied
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url = "https://git.busybox.net/buildroot/plain/package/gcc/${version}/0900-remove-selftests.patch?id=11271540bfe6adafbc133caf6b5b902a816f5f02";
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sha256 = ""; # TODO: uncomment and check hash when available.
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}) */
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++ optional langAda ../gnat-cflags.patch
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++ optional langD ../libphobos.patch
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++ optional langFortran ../gfortran-driving.patch
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++ optional (targetPlatform.libc == "musl" && targetPlatform.isPower) ../ppc-musl.patch
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# Obtain latest patch with ../update-mcfgthread-patches.sh
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++ optional (!crossStageStatic && targetPlatform.isMinGW && threadsCross.model == "mcf") ./Added-mcf-thread-model-support-from-mcfgthread.patch
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++ optional (buildPlatform.system == "aarch64-darwin" && targetPlatform != buildPlatform) (fetchpatch {
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url = "https://raw.githubusercontent.com/richard-vd/musl-cross-make/5e9e87f06fc3220e102c29d3413fbbffa456fcd6/patches/gcc-${version}/0008-darwin-aarch64-self-host-driver.patch";
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sha256 = "sha256-XtykrPd5h/tsnjY1wGjzSOJ+AyyNLsfnjuOZ5Ryq9vA=";
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});
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/* Cross-gcc settings (build == host != target) */
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crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
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stageNameAddon = if crossStageStatic then "stage-static" else "stage-final";
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crossNameAddon = optionalString (targetPlatform != hostPlatform) "${targetPlatform.config}-${stageNameAddon}-";
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in
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stdenv.mkDerivation ({
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pname = "${crossNameAddon}${name}";
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inherit version;
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builder = ../builder.sh;
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src = fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-${version}.tar.xz";
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sha256 = "1wg4xdizkksmwi66mvv2v4pk3ja8x64m7v9gzhykzd3wrmdpsaf9";
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};
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inherit patches;
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outputs = [ "out" "man" "info" ] ++ lib.optional (!langJit) "lib";
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setOutputFlags = false;
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NIX_NO_SELF_RPATH = true;
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libc_dev = stdenv.cc.libc_dev;
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hardeningDisable = [ "format" "pie" ];
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postPatch = ''
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configureScripts=$(find . -name configure)
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for configureScript in $configureScripts; do
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patchShebangs $configureScript
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done
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''
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# This should kill all the stdinc frameworks that gcc and friends like to
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# insert into default search paths.
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+ lib.optionalString hostPlatform.isDarwin ''
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substituteInPlace gcc/config/darwin-c.c \
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--replace 'if (stdinc)' 'if (0)'
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substituteInPlace libgcc/config/t-slibgcc-darwin \
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--replace "-install_name @shlib_slibdir@/\$(SHLIB_INSTALL_NAME)" "-install_name ''${!outputLib}/lib/\$(SHLIB_INSTALL_NAME)"
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substituteInPlace libgfortran/configure \
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--replace "-install_name \\\$rpath/\\\$soname" "-install_name ''${!outputLib}/lib/\\\$soname"
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''
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+ (
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if targetPlatform != hostPlatform || stdenv.cc.libc != null then
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# On NixOS, use the right path to the dynamic linker instead of
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# `/lib/ld*.so'.
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let
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libc = if libcCross != null then libcCross else stdenv.cc.libc;
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in
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(
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'' echo "fixing the \`GLIBC_DYNAMIC_LINKER', \`UCLIBC_DYNAMIC_LINKER', and \`MUSL_DYNAMIC_LINKER' macros..."
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for header in "gcc/config/"*-gnu.h "gcc/config/"*"/"*.h
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do
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grep -q _DYNAMIC_LINKER "$header" || continue
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echo " fixing \`$header'..."
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sed -i "$header" \
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-e 's|define[[:blank:]]*\([UCG]\+\)LIBC_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define \1LIBC_DYNAMIC_LINKER\2 "${libc.out}\3"|g' \
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-e 's|define[[:blank:]]*MUSL_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define MUSL_DYNAMIC_LINKER\1 "${libc.out}\2"|g'
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done
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''
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+ lib.optionalString (targetPlatform.libc == "musl")
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''
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sed -i gcc/config/linux.h -e '1i#undef LOCAL_INCLUDE_DIR'
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''
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)
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else "")
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+ lib.optionalString targetPlatform.isAvr ''
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makeFlagsArray+=(
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'-s' # workaround for hitting hydra log limit
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'LIMITS_H_TEST=false'
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)
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'';
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inherit noSysDirs staticCompiler crossStageStatic
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libcCross crossMingw;
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depsBuildBuild = [ buildPackages.stdenv.cc ];
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nativeBuildInputs = [ texinfo which gettext ]
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++ (optional (perl != null) perl)
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++ (optional langAda gnatboot)
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# The builder relies on GNU sed (for instance, Darwin's `sed' fails with
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# "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
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++ (optional buildPlatform.isDarwin gnused)
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;
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# For building runtime libs
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depsBuildTarget =
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(
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if hostPlatform == buildPlatform then [
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targetPackages.stdenv.cc.bintools # newly-built gcc will be used
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] else assert targetPlatform == hostPlatform; [ # build != host == target
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stdenv.cc
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]
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)
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++ optional targetPlatform.isLinux patchelf;
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buildInputs = [
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gmp mpfr libmpc libxcrypt
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targetPackages.stdenv.cc.bintools # For linking code at run-time
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] ++ (optional (isl != null) isl)
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++ (optional (zlib != null) zlib)
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;
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depsTargetTarget = optional (!crossStageStatic && threadsCross != {} && threadsCross.package != null) threadsCross.package;
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NIX_LDFLAGS = lib.optionalString hostPlatform.isSunOS "-lm -ldl";
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preConfigure = (import ../common/pre-configure.nix {
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inherit lib;
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inherit version targetPlatform hostPlatform gnatboot langAda langGo langJit crossStageStatic enableMultilib;
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}) + ''
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ln -sf ${libxcrypt}/include/crypt.h libsanitizer/sanitizer_common/crypt.h
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'';
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dontDisableStatic = true;
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configurePlatforms = [ "build" "host" "target" ];
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configureFlags = import ../common/configure-flags.nix {
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inherit
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lib
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stdenv
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targetPackages
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crossStageStatic libcCross threadsCross
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version
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gmp mpfr libmpc isl
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enableLTO
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enableMultilib
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enablePlugin
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enableShared
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langC
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langD
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langCC
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langFortran
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langAda
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langGo
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langObjC
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langObjCpp
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langJit
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;
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};
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targetConfig = if targetPlatform != hostPlatform then targetPlatform.config else null;
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buildFlags = optional
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(targetPlatform == hostPlatform && hostPlatform == buildPlatform)
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(if profiledCompiler then "profiledbootstrap" else "bootstrap");
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inherit
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(import ../common/strip-attributes.nix { inherit lib stdenv langJit; })
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stripDebugList
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stripDebugListTarget
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preFixup;
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# https://gcc.gnu.org/install/specific.html#x86-64-x-solaris210
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${if hostPlatform.system == "x86_64-solaris" then "CC" else null} = "gcc -m64";
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# Setting $CPATH and $LIBRARY_PATH to make sure both `gcc' and `xgcc' find the
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# library headers and binaries, regarless of the language being compiled.
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#
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# Likewise, the LTO code doesn't find zlib.
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#
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# Cross-compiling, we need gcc not to read ./specs in order to build the g++
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# compiler (after the specs for the cross-gcc are created). Having
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# LIBRARY_PATH= makes gcc read the specs from ., and the build breaks.
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CPATH = optionals (targetPlatform == hostPlatform) (makeSearchPathOutput "dev" "include" ([]
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++ optional (zlib != null) zlib
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));
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LIBRARY_PATH = optionals (targetPlatform == hostPlatform) (makeLibraryPath (optional (zlib != null) zlib));
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inherit
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(import ../common/extra-target-flags.nix {
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inherit lib stdenv crossStageStatic langD libcCross threadsCross;
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})
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EXTRA_FLAGS_FOR_TARGET
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EXTRA_LDFLAGS_FOR_TARGET
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;
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passthru = {
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inherit langC langCC langObjC langObjCpp langAda langFortran langGo langD version;
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isGNU = true;
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};
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enableParallelBuilding = true;
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inherit enableMultilib enableShared;
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meta = {
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homepage = "https://gcc.gnu.org/";
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license = lib.licenses.gpl3Plus; # runtime support libraries are typically LGPLv3+
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description = "GNU Compiler Collection, version ${version}";
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longDescription = ''
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The GNU Compiler Collection includes compiler front ends for C, C++,
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Objective-C, Fortran, OpenMP for C/C++/Fortran, and Ada, as well as
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libraries for these languages (libstdc++, libgomp,...).
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GCC development is a part of the GNU Project, aiming to improve the
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compiler used in the GNU system including the GNU/Linux variant.
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'';
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maintainers = lib.teams.gcc.members;
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platforms = lib.platforms.unix;
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badPlatforms = [ "aarch64-darwin" ];
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};
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}
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// optionalAttrs (targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt" && crossStageStatic) {
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makeFlags = [ "all-gcc" "all-target-libgcc" ];
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installTargets = "install-gcc install-target-libgcc";
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}
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// optionalAttrs (enableMultilib) { dontMoveLib64 = true; }
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)
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