nixpkgs/pkgs/development/compilers/gcc/builder.sh
Shea Levy c69d8bf5e6
treewide: Remove gnat support.
See discussion in 6ac7b19c97.
2018-03-08 13:56:36 -05:00

295 lines
9.7 KiB
Bash
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

source $stdenv/setup
oldOpts="$(shopt -po nounset)" || true
set -euo pipefail
export NIX_FIXINC_DUMMY="$NIX_BUILD_TOP/dummy"
mkdir "$NIX_FIXINC_DUMMY"
if test "$staticCompiler" = "1"; then
EXTRA_LDFLAGS="-static"
else
EXTRA_LDFLAGS="-Wl,-rpath,${!outputLib}/lib"
fi
# GCC interprets empty paths as ".", which we don't want.
if test -z "${CPATH-}"; then unset CPATH; fi
if test -z "${LIBRARY_PATH-}"; then unset LIBRARY_PATH; fi
echo "\$CPATH is \`${CPATH-}'"
echo "\$LIBRARY_PATH is \`${LIBRARY_PATH-}'"
if test "$noSysDirs" = "1"; then
declare \
EXTRA_BUILD_FLAGS EXTRA_FLAGS EXTRA_TARGET_FLAGS \
EXTRA_BUILD_LDFLAGS EXTRA_TARGET_LDFLAGS
# Extract flags from Bintools Wrappers
for pre in 'BUILD_' ''; do
curBintools="NIX_${pre}BINTOOLS"
declare -a extraLDFlags=()
if [[ -e "${!curBintools}/nix-support/orig-libc" ]]; then
# Figure out what extra flags when linking to pass to the gcc
# compilers being generated to make sure that they use our libc.
extraLDFlags=($(< "${!curBintools}/nix-support/libc-ldflags") $(< "${!curBintools}/nix-support/libc-ldflags-before" || true))
# The path to the Libc binaries such as `crti.o'.
libc_libdir="$(< "${!curBintools}/nix-support/orig-libc")/lib"
else
# Hack: support impure environments.
extraLDFlags=("-L/usr/lib64" "-L/usr/lib")
libc_libdir="/usr/lib"
fi
extraLDFlags=("-L$libc_libdir" "-rpath" "$libc_libdir"
"${extraLDFlags[@]}")
for i in "${extraLDFlags[@]}"; do
declare EXTRA_${pre}LDFLAGS+=" -Wl,$i"
done
done
# Extract flags from CC Wrappers
for pre in 'BUILD_' ''; do
curCC="NIX_${pre}CC"
curFIXINC="NIX_${pre}FIXINC_DUMMY"
declare -a extraFlags=()
if [[ -e "${!curCC}/nix-support/orig-libc" ]]; then
# Figure out what extra compiling flags to pass to the gcc compilers
# being generated to make sure that they use our libc.
extraFlags=($(< "${!curCC}/nix-support/libc-cflags"))
# The path to the Libc headers
libc_devdir="$(< "${!curCC}/nix-support/orig-libc-dev")"
# Use *real* header files, otherwise a limits.h is generated that
# does not include Libc's limits.h (notably missing SSIZE_MAX,
# which breaks the build).
declare NIX_${pre}FIXINC_DUMMY="$libc_devdir/include"
else
# Hack: support impure environments.
extraFlags=("-isystem" "/usr/include")
declare NIX_${pre}FIXINC_DUMMY=/usr/include
fi
extraFlags=("-I${!curFIXINC}" "${extraFlags[@]}")
# BOOT_CFLAGS defaults to `-g -O2'; since we override it below, make
# sure to explictly add them so that files compiled with the bootstrap
# compiler are optimized and (optionally) contain debugging information
# (info "(gccinstall) Building").
if test -n "${dontStrip-}"; then
extraFlags=("-O2" "-g" "${extraFlags[@]}")
else
# Don't pass `-g' at all; this saves space while building.
extraFlags=("-O2" "${extraFlags[@]}")
fi
declare EXTRA_${pre}FLAGS="${extraFlags[*]}"
done
if test -z "${targetConfig-}"; then
# host = target, so the flags are the same
EXTRA_TARGET_FLAGS="$EXTRA_FLAGS"
EXTRA_TARGET_LDFLAGS="$EXTRA_LDFLAGS"
fi
# CFLAGS_FOR_TARGET are needed for the libstdc++ configure script to find
# the startfiles.
# FLAGS_FOR_TARGET are needed for the target libraries to receive the -Bxxx
# for the startfiles.
makeFlagsArray+=(
"BUILD_SYSTEM_HEADER_DIR=$NIX_BUILD_FIXINC_DUMMY"
"SYSTEM_HEADER_DIR=$NIX_BUILD_FIXINC_DUMMY"
"NATIVE_SYSTEM_HEADER_DIR=$NIX_FIXINC_DUMMY"
"LDFLAGS_FOR_BUILD=$EXTRA_BUILD_LDFLAGS"
#"LDFLAGS=$EXTRA_LDFLAGS"
"LDFLAGS_FOR_TARGET=$EXTRA_TARGET_LDFLAGS"
"CFLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS"
"CXXFLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS"
"FLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS"
# It seems there is a bug in GCC 5
#"CFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS"
#"CXXFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS"
"CFLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS"
"CXXFLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS"
"FLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS"
)
if test -z "${targetConfig-}"; then
makeFlagsArray+=(
"BOOT_CFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS"
"BOOT_LDFLAGS=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS"
)
fi
if test -n "${targetConfig-}" -a "$crossStageStatic" == 1; then
# We don't want the gcc build to assume there will be a libc providing
# limits.h in this stagae
makeFlagsArray+=(
'LIMITS_H_TEST=false'
)
else
makeFlagsArray+=(
'LIMITS_H_TEST=true'
)
fi
fi
if test -n "${targetConfig-}"; then
# The host strip will destroy some important details of the objects
dontStrip=1
fi
eval "$oldOpts"
providedPreConfigure="$preConfigure";
preConfigure() {
if test -n "$newlibSrc"; then
tar xvf "$newlibSrc" -C ..
ln -s ../newlib-*/newlib newlib
# Patch to get armvt5el working:
sed -i -e 's/ arm)/ arm*)/' newlib/configure.host
fi
# Bug - they packaged zlib
if test -d "zlib"; then
# This breaks the build without-headers, which should build only
# the target libgcc as target libraries.
# See 'configure:5370'
rm -Rf zlib
fi
if test -f "$NIX_CC/nix-support/orig-libc"; then
# Patch the configure script so it finds glibc headers. It's
# important for example in order not to get libssp built,
# because its functionality is in glibc already.
sed -i \
-e "s,glibc_header_dir=/usr/include,glibc_header_dir=$libc_dev/include", \
gcc/configure
fi
if test -n "$crossMingw" -a -n "$crossStageStatic"; then
mkdir -p ../mingw
# --with-build-sysroot expects that:
cp -R $libcCross/include ../mingw
configureFlags="$configureFlags --with-build-sysroot=`pwd`/.."
fi
# Eval the preConfigure script from nix expression.
eval "$providedPreConfigure"
# Perform the build in a different directory.
mkdir ../build
cd ../build
configureScript=../$sourceRoot/configure
}
postConfigure() {
# Don't store the configure flags in the resulting executables.
sed -e '/TOPLEVEL_CONFIGURE_ARGUMENTS=/d' -i Makefile
}
preInstall() {
# Make lib64 symlinks to lib.
if [ -n "$is64bit" -a -z "$enableMultilib" ]; then
mkdir -p "$out/lib"
ln -s lib "$out/lib64"
mkdir -p "$lib/lib"
ln -s lib "$lib/lib64"
fi
}
postInstall() {
# Move runtime libraries to $lib.
moveToOutput "lib/lib*.so*" "$lib"
moveToOutput "lib/lib*.la" "$lib"
moveToOutput "lib/lib*.dylib" "$lib"
moveToOutput "share/gcc-*/python" "$lib"
for i in "$lib"/lib/*.{la,py}; do
substituteInPlace "$i" --replace "$out" "$lib"
done
if [ -n "$enableMultilib" ]; then
moveToOutput "lib64/lib*.so*" "$lib"
moveToOutput "lib64/lib*.la" "$lib"
moveToOutput "lib64/lib*.dylib" "$lib"
for i in "$lib"/lib64/*.{la,py}; do
substituteInPlace "$i" --replace "$out" "$lib"
done
fi
# Remove `fixincl' to prevent a retained dependency on the
# previous gcc.
rm -rf $out/libexec/gcc/*/*/install-tools
rm -rf $out/lib/gcc/*/*/install-tools
# More dependencies with the previous gcc or some libs (gccbug stores the build command line)
rm -rf $out/bin/gccbug
if type "patchelf"; then
# Take out the bootstrap-tools from the rpath, as it's not needed at all having $out
for i in $(find "$out"/libexec/gcc/*/*/* -type f -a \! -name '*.la'); do
PREV_RPATH=`patchelf --print-rpath "$i"`
NEW_RPATH=`echo "$PREV_RPATH" | sed 's,:[^:]*bootstrap-tools/lib,,g'`
patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
done
# For some reason the libs retain RPATH to $out
for i in "$lib"/lib/{libtsan,libasan,libubsan}.so.*.*.*; do
PREV_RPATH=`patchelf --print-rpath "$i"`
NEW_RPATH=`echo "$PREV_RPATH" | sed "s,:${out}[^:]*,,g"`
patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
done
fi
if type "install_name_tool"; then
for i in "$lib"/lib/*.*.dylib; do
install_name_tool -id "$i" "$i" || true
for old_path in $(otool -L "$i" | grep "$out" | awk '{print $1}'); do
new_path=`echo "$old_path" | sed "s,$out,$lib,"`
install_name_tool -change "$old_path" "$new_path" "$i" || true
done
done
fi
# Get rid of some "fixed" header files
rm -rfv $out/lib/gcc/*/*/include-fixed/{root,linux}
# Replace hard links for i686-pc-linux-gnu-gcc etc. with symlinks.
for i in $out/bin/*-gcc*; do
if cmp -s $out/bin/gcc $i; then
ln -sfn gcc $i
fi
done
for i in $out/bin/c++ $out/bin/*-c++* $out/bin/*-g++*; do
if cmp -s $out/bin/g++ $i; then
ln -sfn g++ $i
fi
done
# Disable RANDMMAP on grsec, which causes segfaults when using
# precompiled headers.
# See https://bugs.gentoo.org/show_bug.cgi?id=301299#c31
paxmark r $out/libexec/gcc/*/*/{cc1,cc1plus}
# Two identical man pages are shipped (moving and compressing is done later)
ln -sf gcc.1 "$out"/share/man/man1/g++.1
}
genericBuild