140 lines
4.3 KiB
Nix
140 lines
4.3 KiB
Nix
{ lib
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, buildPlatform
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, hostPlatform
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, fetchurl
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, bash
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, gnumake
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, gnupatch
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, gnugrep
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, gnutar
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, gzip
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, heirloom
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, binutils
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, mesBootstrap ? false, tinycc ? null, mes-libc
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, gcc ? null, glibc ? null, linux-headers
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}:
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assert mesBootstrap -> tinycc != null;
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assert !mesBootstrap -> gcc != null && glibc != null;
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let
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# Gcc-2.95.3 is the most recent GCC that is supported by what the Mes C
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# Library v0.16 offers. Gcc-3.x (and 4.x) place higher demands on a C
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# library, such as dir.h/struct DIR/readdir, locales, signals... Also,
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# with gcc-2.95.3, binutils (2.14.0, 2.20.1a) and glibc-2.2.5 we found a
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# GNU toolchain triplet "that works".
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# - from guix/gnu/packages/commencement.scm
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pname = "gcc" + lib.optionalString mesBootstrap "-mes";
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version = "2.95.3";
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src = fetchurl {
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url = "mirror://gnu/gcc/gcc-${version}/gcc-core-${version}.tar.gz";
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sha256 = "1xvfy4pqhrd5v2cv8lzf63iqg92k09g6z9n2ah6ndd4h17k1x0an";
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};
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patches = [
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# This patch enables building gcc-2.95.3 using TCC and Mes C Library.
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# * Disable building DOC
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# * Avoid running `fixproto'.
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# * Force running `fixinc'.
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# * Replace Makefile trickery of creating an libgcc1.a archive, then
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# extracting the .o files later to create a new libgcc2.a archive.
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# Instead, keep temporary .o files.
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(fetchurl {
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url = "https://git.savannah.gnu.org/cgit/guix.git/plain/gnu/packages/patches/gcc-boot-2.95.3.patch?id=50249cab3a98839ade2433456fe618acc6f804a5";
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sha256 = "03l3jaxch6d76mx4zkn6ky64paj58jk0biddck01qd4bnw9z8hiw";
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})
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];
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makeFlags = [
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"LANGUAGES=c"
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] ++ lib.optionals mesBootstrap [
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"LIBGCC2_INCLUDES=\"-I ${mes-libc}/include\""
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"BOOT_LDFLAGS=\" -B ${tinycc.libs}/lib\""
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] ++ lib.optionals (!mesBootstrap) [
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"LIBGCC2_INCLUDES=\"-I ${glibc}/include -I ${linux-headers}/include\""
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];
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in
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bash.runCommand "${pname}-${version}" {
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inherit pname version;
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nativeBuildInputs = [
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(if mesBootstrap then tinycc.compiler else gcc)
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gnumake
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gnupatch
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gnugrep
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gnutar
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gzip
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heirloom.sed
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binutils
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];
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passthru.tests.get-version = result:
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bash.runCommand "${pname}-get-version-${version}" {} ''
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${result}/bin/gcc --version
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mkdir $out
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'';
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meta = with lib; {
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description = "GNU Compiler Collection, version ${version}";
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homepage = "https://gcc.gnu.org";
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license = licenses.gpl3Plus;
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maintainers = teams.minimal-bootstrap.members;
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platforms = platforms.unix;
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};
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} ''
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# Unpack
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tar xzf ${src}
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cd gcc-${version}
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# Patch
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${lib.concatMapStringsSep "\n" (f: "patch -Np1 -i ${f}") patches}
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# /build/glibc-2.2.5/intl/loadmsgcat.c:334: multiple definition of `_nl_load_domain'
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# ../intl/libintl.a(loadmsgcat.o):/build/gcc-2.95.3/texinfo/intl/loadmsgcat.c:66: first defined here
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rm -R texinfo
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mkdir -p texinfo
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echo 'all:'>texinfo/Makefile.in
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echo 'install:'>>texinfo/Makefile.in
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# Configure
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${if mesBootstrap then ''
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export CC="tcc -B ${tinycc.libs}/lib -D __GLIBC_MINOR__=6"
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export CPP="tcc -E"
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export ac_cv_func_setlocale=no
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'' else ''
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export CC="gcc -I${glibc}/include -I${linux-headers}/include -I${gcc}/lib/gcc-lib/${hostPlatform.config}/${version}/include"
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export CPP="gcc -E -I${glibc}/include -I${linux-headers}/include -I${gcc}/lib/gcc-lib/${hostPlatform.config}/${version}/include"
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export LIBRARY_PATH="${glibc}/lib"
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export LIBS="-lc -lnss_files -lnss_dns -lresolv"
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''}
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export OLDCC="$CC"
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export CC_FOR_BUILD="$CC"
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export AR=ar
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export RANLIB=ranlib
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export ac_cv_c_float_format='IEEE (little-endian)'
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bash ./configure \
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--build=${buildPlatform.config} \
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--host=${hostPlatform.config} \
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--enable-static \
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--disable-shared \
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--disable-werror \
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--prefix=$out
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# no info at this stage
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touch gcc/cpp.info gcc/gcc.info
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# Build
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make ${lib.concatStringsSep " " makeFlags}
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# Install
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make install
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mkdir tmp
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cd tmp
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ar x ../gcc/libgcc2.a
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${lib.optionalString mesBootstrap "ar x ${tinycc.libs}/lib/libtcc1.a"}
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ar r $out/lib/gcc-lib/${hostPlatform.config}/${version}/libgcc.a *.o
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cd ..
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${lib.optionalString mesBootstrap ''
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cp gcc/libgcc2.a $out/lib/libgcc2.a
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ar x ${tinycc.libs}/lib/libtcc1.a
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ar x ${tinycc.libs}/lib/libc.a
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ar r $out/lib/gcc-lib/${hostPlatform.config}/${version}/libc.a libc.o libtcc1.o
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''}
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''
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