77f3a9a3aa
Okay, GCC might not technically support _every_ platform in platforms.unix, but I think it would be easier to subtract those as they're discovered, if that even matters, rather than trying to exhaustively list every Unix it does support. (I ran into this because I wanted to build GCC for NetBSD, which it definitely supports.)
309 lines
11 KiB
Nix
309 lines
11 KiB
Nix
{ lib, stdenv, targetPackages, fetchurl, fetchpatch, noSysDirs
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, langC ? true, langCC ? true, langFortran ? false
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, langObjC ? stdenv.targetPlatform.isDarwin
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, langObjCpp ? stdenv.targetPlatform.isDarwin
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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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, # N.B. the defult is intentionally not from an `isStatic`. See
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# https://gcc.gnu.org/install/configure.html - this is about target
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# platform libraries not host platform ones unlike normal. But since
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# we can't rebuild those without also rebuilding the compiler itself,
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# we opt to always build everything unlike our usual policy.
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enableShared ? true
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, enableLTO ? true
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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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, libelf # optional, for link-time optimizations (LTO)
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, isl ? null # optional, for the Graphite optimization framework.
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, zlib ? 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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, # Strip kills static libs of other archs (hence no cross)
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stripped ? stdenv.hostPlatform.system == stdenv.buildPlatform.system
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&& stdenv.targetPlatform.system == stdenv.hostPlatform.system
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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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}:
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# LTO needs libelf and zlib.
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assert libelf != null -> zlib != null;
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# Make sure we get GNU sed.
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assert stdenv.hostPlatform.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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# threadsCross is just for MinGW
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assert threadsCross != null -> 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 = "7";
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version = "${majorVersion}.5.0";
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inherit (stdenv) buildPlatform hostPlatform targetPlatform;
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patches =
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[ # https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00633.html
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./riscv-pthread-reentrant.patch
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# https://gcc.gnu.org/ml/gcc-patches/2018-03/msg00297.html
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./riscv-no-relax.patch
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./0001-Fix-build-for-glibc-2.31.patch
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]
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++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
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++ optionals targetPlatform.isNetBSD [
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../libstdc++-netbsd-ctypes.patch
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]
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++ optional noSysDirs ../no-sys-dirs.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/7.1.0/0900-remove-selftests.patch?id=11271540bfe6adafbc133caf6b5b902a816f5f02";
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sha256 = "0mrvxsdwip2p3l17dscpc1x8vhdsciqw1z5q9i6p5g9yg1cqnmgs";
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})
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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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++ optional (targetPlatform.libc == "musl" && targetPlatform.isx86_32) (fetchpatch {
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url = "https://git.alpinelinux.org/aports/plain/main/gcc/gcc-6.1-musl-libssp.patch?id=5e4b96e23871ee28ef593b439f8c07ca7c7eb5bb";
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sha256 = "1jf1ciz4gr49lwyh8knfhw6l5gvfkwzjy90m7qiwkcbsf4a3fqn2";
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})
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++ optional (targetPlatform.libc == "musl") ../libgomp-dont-force-initial-exec.patch
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# Obtain latest patch with ../update-mcfgthread-patches.sh
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++ optional (!crossStageStatic && targetPlatform.isMinGW) ./Added-mcf-thread-model-support-from-mcfgthread.patch;
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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}${name}${if stripped then "" else "-debug"}";
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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 = "0qg6kqc5l72hpnj4vr6l0p69qav0rh4anlkk3y55540zy3klc6dq";
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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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'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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# 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 libelf
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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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# 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 hostPlatform.isDarwin gnused)
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;
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depsTargetTarget = optional (!crossStageStatic && threadsCross != null) threadsCross;
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NIX_CFLAGS_COMPILE = lib.optionalString (stdenv.cc.isClang && langFortran) "-Wno-unused-command-line-argument";
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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 langGo;
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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
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version
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gmp mpfr libmpc libelf 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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langCC
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langFortran
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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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} ++ optional (targetPlatform.isAarch64) "--enable-fix-cortex-a53-843419"
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++ optional targetPlatform.isNetBSD "--disable-libcilkrts"
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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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dontStrip = !stripped;
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doCheck = false; # requires a lot of tools, causes a dependency cycle for stdenv
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installTargets = optional stripped "install-strip";
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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 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 langFortran langGo version;
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isGNU = true;
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};
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enableParallelBuilding = true;
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inherit enableMultilib;
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inherit (stdenv) is64bit;
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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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+ (if stripped then "" else " (with debugging info)");
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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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};
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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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