76c956be5c
Some packages don’t work correctly with pie. Here I disable it for: - busybox - linux kernel - kexectools I also get rid of the Musl conditional for disabling pie in GCC and Binutils. Some day we might want to enable PIE without Musl and it will be useful to have the *just* work with our compiler and linkers.
400 lines
15 KiB
Nix
400 lines
15 KiB
Nix
{ 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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, profiledCompiler ? false
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, staticCompiler ? false
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, enableShared ? 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
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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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, crossStageStatic ? false
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, # Strip kills static libs of other archs (hence no cross)
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stripped ? stdenv.hostPlatform == stdenv.buildPlatform
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&& stdenv.targetPlatform == stdenv.hostPlatform
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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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with stdenv.lib;
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with builtins;
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let version = "7.3.0";
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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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]
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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 (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") ../libgomp-dont-force-initial-exec.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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crossDarwin = targetPlatform != hostPlatform && targetPlatform.libc == "libSystem";
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crossConfigureFlags =
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# Ensure that -print-prog-name is able to find the correct programs.
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[ "--with-as=${targetPackages.stdenv.cc.bintools}/bin/${targetPlatform.config}-as"
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"--with-ld=${targetPackages.stdenv.cc.bintools}/bin/${targetPlatform.config}-ld" ] ++
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(if crossMingw && crossStageStatic then [
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"--with-headers=${getDev libcCross}${libcCross.incdir or "/include"}"
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"--with-gcc"
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"--with-gnu-as"
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"--with-gnu-ld"
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"--with-gnu-ld"
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"--disable-shared"
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"--disable-nls"
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"--disable-debug"
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"--enable-sjlj-exceptions"
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"--enable-threads=win32"
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"--disable-win32-registry"
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"--disable-libmpx" # requires libc
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] else if crossStageStatic then [
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"--disable-libssp"
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"--disable-nls"
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"--without-headers"
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"--disable-threads"
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"--disable-libgomp"
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"--disable-libquadmath"
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"--disable-shared"
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"--disable-libatomic" # requires libc
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"--disable-decimal-float" # requires libc
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"--disable-libmpx" # requires libc
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] else [
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(if crossDarwin then "--with-sysroot=${getLib libcCross}/share/sysroot"
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else "--with-headers=${getDev libcCross}${libcCross.incdir or "/include"}")
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"--enable-__cxa_atexit"
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"--enable-long-long"
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] ++
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(if crossMingw then [
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"--enable-threads=win32"
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"--enable-sjlj-exceptions"
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"--enable-hash-synchronization"
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"--enable-libssp"
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"--disable-nls"
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"--with-dwarf2"
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# To keep ABI compatibility with upstream mingw-w64
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"--enable-fully-dynamic-string"
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] else
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optionals (targetPlatform.libc == "uclibc" || targetPlatform.libc == "musl") [
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# libsanitizer requires netrom/netrom.h which is not
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# available in uclibc.
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"--disable-libsanitizer"
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# In uclibc cases, libgomp needs an additional '-ldl'
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# and as I don't know how to pass it, I disable libgomp.
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"--disable-libgomp"
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# musl at least, disable: https://git.buildroot.net/buildroot/commit/?id=873d4019f7fb00f6a80592224236b3ba7d657865
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"--disable-libmpx"
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]
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++ optional (targetPlatform.libc == "newlib") "--with-newlib"
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++ optional (targetPlatform.libc == "avrlibc") "--with-avrlibc"
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++ [
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"--enable-threads=${if targetPlatform.isUnix then "posix"
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else if targetPlatform.isWindows then "win32"
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else "single"}"
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"--enable-nls"
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# No final libdecnumber (it may work only in 386)
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"--disable-decimal-float"
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]));
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stageNameAddon = if crossStageStatic then "-stage-static" else "-stage-final";
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crossNameAddon = if targetPlatform != hostPlatform then "${targetPlatform.config}${stageNameAddon}-" else "";
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bootstrap = targetPlatform == hostPlatform;
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in
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stdenv.mkDerivation ({
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name = crossNameAddon + "${name}${if stripped then "" else "-debug"}-${version}";
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builder = ../builder.sh;
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src = fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-${version}.tar.xz";
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sha256 = "0p71bij6bfhzyrs8676a8jmpjsfz392s2rg862sdnsk30jpacb43";
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};
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inherit patches;
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outputs = [ "out" "lib" "man" "info" ];
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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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# 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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prePatch = stdenv.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 $lib/lib/\$(SHLIB_INSTALL_NAME)"
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substituteInPlace libgfortran/configure \
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--replace "-install_name \\\$rpath/\\\$soname" "-install_name $lib/lib/\\\$soname"
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'';
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postPatch = ''
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configureScripts=$(find . -name configure)
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for configureScript in $configureScripts; do
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patchShebangs $configureScript
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done
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'' + (
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if targetPlatform != hostPlatform || stdenv.cc.libc != null then
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# On NixOS, use the right path to the dynamic linker instead of
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# `/lib/ld*.so'.
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let
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libc = if libcCross != null then libcCross else stdenv.cc.libc;
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in
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(
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'' echo "fixing the \`GLIBC_DYNAMIC_LINKER', \`UCLIBC_DYNAMIC_LINKER', and \`MUSL_DYNAMIC_LINKER' macros..."
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for header in "gcc/config/"*-gnu.h "gcc/config/"*"/"*.h
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do
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grep -q _DYNAMIC_LINKER "$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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+ stdenv.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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+ stdenv.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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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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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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NIX_CFLAGS_COMPILE = stdenv.lib.optionalString (stdenv.cc.isClang && langFortran) "-Wno-unused-command-line-argument";
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NIX_LDFLAGS = stdenv.lib.optionalString hostPlatform.isSunOS "-lm -ldl";
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preConfigure = stdenv.lib.optionalString (hostPlatform.isSunOS && hostPlatform.is64bit) ''
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export NIX_LDFLAGS=`echo $NIX_LDFLAGS | sed -e s~$prefix/lib~$prefix/lib/amd64~g`
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export LDFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $LDFLAGS_FOR_TARGET"
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export CXXFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CXXFLAGS_FOR_TARGET"
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export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
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'';
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dontDisableStatic = true;
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# TODO(@Ericson2314): Always pass "--target" and always prefix.
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configurePlatforms = [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
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configureFlags =
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# Basic dependencies
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[
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"--with-gmp-include=${gmp.dev}/include"
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"--with-gmp-lib=${gmp.out}/lib"
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"--with-mpfr-include=${mpfr.dev}/include"
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"--with-mpfr-lib=${mpfr.out}/lib"
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"--with-mpc=${libmpc}"
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] ++
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optional (libelf != null) "--with-libelf=${libelf}" ++
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optional (!(crossMingw && crossStageStatic))
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"--with-native-system-header-dir=${getDev stdenv.cc.libc}/include" ++
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# Basic configuration
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[
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"--enable-lto"
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"--disable-libstdcxx-pch"
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"--without-included-gettext"
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"--with-system-zlib"
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"--enable-static"
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"--enable-languages=${
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concatStrings (intersperse ","
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( optional langC "c"
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++ optional langCC "c++"
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++ optional langFortran "fortran"
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++ optional langGo "go"
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++ optional langObjC "objc"
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++ optional langObjCpp "obj-c++"
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++ optionals crossDarwin [ "objc" "obj-c++" ]
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)
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)
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}"
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] ++
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(if (enableMultilib || targetPlatform.isAvr)
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then ["--enable-multilib" "--disable-libquadmath"]
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else ["--disable-multilib"]) ++
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optional (!enableShared) "--disable-shared" ++
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(if enablePlugin
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then ["--enable-plugin"]
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else ["--disable-plugin"]) ++
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# Optional features
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optional (isl != null) "--with-isl=${isl}" ++
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(import ../common/platform-flags.nix { inherit (stdenv) lib targetPlatform; }) ++
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optional (targetPlatform != hostPlatform) crossConfigureFlags ++
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optional (!bootstrap) "--disable-bootstrap" ++
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# Platform-specific flags
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optional (targetPlatform == hostPlatform && targetPlatform.isi686) "--with-arch=i686" ++
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optionals hostPlatform.isSunOS [
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"--enable-long-long" "--enable-libssp" "--enable-threads=posix" "--disable-nls" "--enable-__cxa_atexit"
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# On Illumos/Solaris GNU as is preferred
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"--with-gnu-as" "--without-gnu-ld"
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]
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++ optionals (targetPlatform == hostPlatform && targetPlatform.libc == "musl") [
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"--disable-libsanitizer"
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"--disable-symvers"
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"libat_cv_have_ifunc=no"
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"--disable-gnu-indirect-function"
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]
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++ optional (targetPlatform.isAarch64) "--enable-fix-cortex-a53-843419"
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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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(bootstrap && 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 =
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if stripped
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then "install-strip"
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else "install";
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# http://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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EXTRA_TARGET_FLAGS = optionals
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(targetPlatform != hostPlatform && libcCross != null)
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([
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"-idirafter ${getDev libcCross}${libcCross.incdir or "/include"}"
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] ++ optionals (! crossStageStatic) [
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"-B${libcCross.out}${libcCross.libdir or "/lib"}"
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]);
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EXTRA_TARGET_LDFLAGS = optionals
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(targetPlatform != hostPlatform && libcCross != null)
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([
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"-Wl,-L${libcCross.out}${libcCross.libdir or "/lib"}"
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] ++ (if crossStageStatic then [
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"-B${libcCross.out}${libcCross.libdir or "/lib"}"
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] else [
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"-Wl,-rpath,${libcCross.out}${libcCross.libdir or "/lib"}"
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"-Wl,-rpath-link,${libcCross.out}${libcCross.libdir or "/lib"}"
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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 = http://gcc.gnu.org/;
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license = stdenv.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 = with stdenv.lib.maintainers; [ ];
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platforms =
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stdenv.lib.platforms.linux ++
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stdenv.lib.platforms.freebsd ++
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stdenv.lib.platforms.illumos ++
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stdenv.lib.platforms.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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