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buildgcc: Allow environment to override $CC/$CXX 

Also check for the presence of the given commands or "gcc", "cc" in this
order if $CC is empty. To untangle the given compilers from boostrapped
ones, introduce hostcc() and hostcxx() functions that return the respec-
tive compilers to be used.

Change-Id: Ic947be53eec25331173ac82ed742017ca3fbf83c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/20331
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Nico Huber 2017-06-24 19:50:35 +02:00 committed by Stefan Reinauer
parent f652f82137
commit 08bb837268
1 changed files with 82 additions and 26 deletions
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108
util/crossgcc/buildgcc
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@ -112,6 +112,26 @@ NC='\033[0m' # No Color
UNAME=$(uname | grep -iq cygwin && echo Cygwin || uname) UNAME=$(uname | grep -iq cygwin && echo Cygwin || uname)
HALT_FOR_TOOLS=0 HALT_FOR_TOOLS=0
hostcc()
{
# $1 "host" or "target"
if [ "$BOOTSTRAP" = 1 -a "$1" = target ]; then
echo $DESTDIR$TARGETDIR/bin/gcc
else
echo $CC
fi
}
hostcxx()
{
# $1 "host" or "target"
if [ "$BOOTSTRAP" = 1 -a "$1" = target ]; then
echo $DESTDIR$TARGETDIR/bin/g++
else
echo $CXX
fi
}
normalize_dirs() normalize_dirs()
{ {
mkdir -p $DESTDIR$TARGETDIR/lib mkdir -p $DESTDIR$TARGETDIR/lib
@ -205,7 +225,7 @@ check_for_library() {
echo "int main(int argc, char **argv) { (void) argc; (void) argv; return 0; }" > "${LIBTEST_FILE}.c" echo "int main(int argc, char **argv) { (void) argc; (void) argv; return 0; }" > "${LIBTEST_FILE}.c"
cc $CFLAGS $LIBRARY_FLAGS "${LIBTEST_FILE}.c" -o "${LIBTEST_FILE}" >/dev/null 2>&1 || \ "$CC" $CFLAGS $LIBRARY_FLAGS "${LIBTEST_FILE}.c" -o "${LIBTEST_FILE}" >/dev/null 2>&1 || \
please_install "$LIBRARY_PACKAGES" please_install "$LIBRARY_PACKAGES"
rm -rf "${LIBTEST_FILE}.c" "${LIBTEST_FILE}" rm -rf "${LIBTEST_FILE}.c" "${LIBTEST_FILE}"
} }
@ -513,7 +533,8 @@ build_GMP() {
OPTIONS="$OPTIONS --with-pic" OPTIONS="$OPTIONS --with-pic"
fi fi
CC="$CC" ../${GMP_DIR}/configure --disable-shared --enable-fat \ CC="$(hostcc host)" CXX="$(hostcxx host)" \
../${GMP_DIR}/configure --disable-shared --enable-fat \
--prefix=$TARGETDIR $OPTIONS \ --prefix=$TARGETDIR $OPTIONS \
|| touch .failed || touch .failed
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
@ -526,7 +547,8 @@ build_GMP() {
build_MPFR() { build_MPFR() {
test $UNAME = "Darwin" && CFLAGS="$CFLAGS -force_cpusubtype_ALL" test $UNAME = "Darwin" && CFLAGS="$CFLAGS -force_cpusubtype_ALL"
CC="$CC" ../${MPFR_DIR}/configure --disable-shared --prefix=$TARGETDIR \ CC="$(hostcc host)" CXX="$(hostcxx host)" \
../${MPFR_DIR}/configure --disable-shared --prefix=$TARGETDIR \
--infodir=$TARGETDIR/info \ --infodir=$TARGETDIR/info \
--with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \ --with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \
touch .failed touch .failed
@ -542,7 +564,8 @@ build_MPFR() {
} }
build_MPC() { build_MPC() {
CC="$CC" ../${MPC_DIR}/configure --disable-shared --prefix=$TARGETDIR \ CC="$(hostcc host)" CXX="$(hostcxx host)" \
../${MPC_DIR}/configure --disable-shared --prefix=$TARGETDIR \
--infodir=$TARGETDIR/info --with-mpfr=$DESTDIR$TARGETDIR \ --infodir=$TARGETDIR/info --with-mpfr=$DESTDIR$TARGETDIR \
--with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \ --with-gmp=$DESTDIR$TARGETDIR CFLAGS="$HOSTCFLAGS" || \
touch .failed touch .failed
@ -564,7 +587,8 @@ build_MPC() {
} }
build_LIBELF() { build_LIBELF() {
CC="$CC" CFLAGS="$HOSTCFLAGS" libelf_cv_elf_h_works=no \ CC="$(hostcc host)" CXX="$(hostcxx host)" \
CFLAGS="$HOSTCFLAGS" libelf_cv_elf_h_works=no \
../${LIBELF_DIR}/configure --disable-shared --disable-nls --prefix=$TARGETDIR \ ../${LIBELF_DIR}/configure --disable-shared --disable-nls --prefix=$TARGETDIR \
--infodir=$TARGETDIR/info CFLAGS="$HOSTCFLAGS" || touch .failed --infodir=$TARGETDIR/info CFLAGS="$HOSTCFLAGS" || touch .failed
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
@ -577,7 +601,8 @@ build_BINUTILS() {
if [ $TARGETARCH = "x86_64-elf" ]; then if [ $TARGETARCH = "x86_64-elf" ]; then
ADDITIONALTARGET=",i386-elf" ADDITIONALTARGET=",i386-elf"
fi fi
CC="$CC" ../binutils-${BINUTILS_VERSION}/configure --prefix=$TARGETDIR \ CC="$(hostcc target)" CXX="$(hostcxx target)" \
../binutils-${BINUTILS_VERSION}/configure --prefix=$TARGETDIR \
--target=${TARGETARCH} --enable-targets=${TARGETARCH}${ADDITIONALTARGET} \ --target=${TARGETARCH} --enable-targets=${TARGETARCH}${ADDITIONALTARGET} \
--disable-werror --disable-nls --enable-lto --enable-gold \ --disable-werror --disable-nls --enable-lto --enable-gold \
--enable-interwork --enable-multilib \ --enable-interwork --enable-multilib \
@ -590,7 +615,7 @@ build_BINUTILS() {
} }
bootstrap_GCC() { bootstrap_GCC() {
CC="$CC" \ CC="$(hostcc host)" CXX="$(hostcxx host)" \
CFLAGS="$HOSTCFLAGS" \ CFLAGS="$HOSTCFLAGS" \
CFLAGS_FOR_BUILD="$HOSTCFLAGS" \ CFLAGS_FOR_BUILD="$HOSTCFLAGS" \
CFLAGS_FOR_TARGET="$HOSTCFLAGS -fPIC" \ CFLAGS_FOR_TARGET="$HOSTCFLAGS -fPIC" \
@ -614,8 +639,7 @@ bootstrap_GCC() {
install-target-libgcc \ install-target-libgcc \
maybe-install-target-libada \ maybe-install-target-libada \
maybe-install-target-libstdc++-v3 \ maybe-install-target-libstdc++-v3 \
DESTDIR=$DESTDIR && \ DESTDIR=$DESTDIR || touch .failed
ln -s gcc $DESTDIR$TARGETDIR/bin/cc || touch .failed
} }
build_cross_GCC() { build_cross_GCC() {
@ -630,7 +654,8 @@ build_cross_GCC() {
# libiberty is not compiled with CFLAGS_FOR_BUILD. # libiberty is not compiled with CFLAGS_FOR_BUILD.
# Also set the CXX version of the flags because GCC is now compiled # Also set the CXX version of the flags because GCC is now compiled
# using C++. # using C++.
CC="$CC" CFLAGS_FOR_TARGET="-O2 -Dinhibit_libc" CFLAGS="$HOSTCFLAGS" \ CC="$(hostcc target)" CXX="$(hostcxx target)" \
CFLAGS_FOR_TARGET="-O2 -Dinhibit_libc" CFLAGS="$HOSTCFLAGS" \
CFLAGS_FOR_BUILD="$HOSTCFLAGS" CXXFLAGS="$HOSTCFLAGS" \ CFLAGS_FOR_BUILD="$HOSTCFLAGS" CXXFLAGS="$HOSTCFLAGS" \
CXXFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \ CXXFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
--prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \ --prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \
@ -658,15 +683,16 @@ build_cross_GCC() {
build_GCC() { build_GCC() {
if [ "$1" = host ]; then if [ "$1" = host ]; then
bootstrap_GCC bootstrap_GCC $1
else else
build_cross_GCC build_cross_GCC $1
fi fi
} }
build_EXPAT() { build_EXPAT() {
CC="$CC" CFLAGS="$HOSTCFLAGS" ../${EXPAT_DIR}/configure --disable-shared \ CC="$(hostcc host)" CXX="$(hostcxx host)" CFLAGS="$HOSTCFLAGS"
--prefix=$TARGETDIR || touch .failed ../${EXPAT_DIR}/configure --disable-shared --prefix=$TARGETDIR \
|| touch .failed
$MAKE || touch .failed $MAKE || touch .failed
$MAKE install DESTDIR=$DESTDIR || touch .failed $MAKE install DESTDIR=$DESTDIR || touch .failed
@ -674,7 +700,8 @@ build_EXPAT() {
} }
build_PYTHON() { build_PYTHON() {
CC="$CC" CFLAGS="$HOSTCFLAGS" ../${PYTHON_DIR}/configure --prefix=$TARGETDIR \ CC="$(hostcc host)" CXX="$(hostcxx host)" CFLAGS="$HOSTCFLAGS"
../${PYTHON_DIR}/configure --prefix=$TARGETDIR \
|| touch .failed || touch .failed
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
$MAKE install DESTDIR=$DESTDIR || touch .failed $MAKE install DESTDIR=$DESTDIR || touch .failed
@ -689,7 +716,8 @@ build_GDB() {
fi fi
LDFLAGS="-Wl,-rpath,\$\$ORIGIN/../lib/ -L$DESTDIR$TARGETDIR/lib \ LDFLAGS="-Wl,-rpath,\$\$ORIGIN/../lib/ -L$DESTDIR$TARGETDIR/lib \
-lpthread $LIBDL -lutil" \ -lpthread $LIBDL -lutil" \
CC="$CC" CFLAGS="$HOSTCFLAGS -I$DESTDIR$TARGETDIR/include" \ CC="$(hostcc target)" CXX="$(hostcxx target)" \
CFLAGS="$HOSTCFLAGS -I$DESTDIR$TARGETDIR/include" \
../${GDB_DIR}/configure --prefix=$TARGETDIR \ ../${GDB_DIR}/configure --prefix=$TARGETDIR \
--target=${TARGETARCH} --disable-werror --disable-nls --target=${TARGETARCH} --disable-werror --disable-nls
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
@ -704,7 +732,9 @@ build_IASL() {
test $UNAME = "Darwin" && HOST="_APPLE" test $UNAME = "Darwin" && HOST="_APPLE"
test $UNAME = "FreeBSD" && HOST="_FreeBSD" test $UNAME = "FreeBSD" && HOST="_FreeBSD"
test $UNAME = "Cygwin" && HOST="_CYGWIN" test $UNAME = "Cygwin" && HOST="_CYGWIN"
HOST="$HOST" OPT_CFLAGS="-O -D_FORTIFY_SOURCE=2 -D COREBOOT_TOOLCHAIN_VERSION='\"coreboot toolchain v$CROSSGCC_VERSION $CROSSGCC_DATE\"' " CFLAGS="$CFLAGS" $MAKE CC="$CC" iasl || touch $RDIR/.failed HOST="$HOST" CFLAGS="$CFLAGS" \
OPT_CFLAGS="-O -D_FORTIFY_SOURCE=2 -D COREBOOT_TOOLCHAIN_VERSION='\"coreboot toolchain v$CROSSGCC_VERSION $CROSSGCC_DATE\"' " \
$MAKE CC="$(hostcc host)" iasl || touch $RDIR/.failed
rm -f $DESTDIR$TARGETDIR/bin/iasl || touch $RDIR/.failed rm -f $DESTDIR$TARGETDIR/bin/iasl || touch $RDIR/.failed
cp bin/iasl $DESTDIR$TARGETDIR/bin || touch $RDIR/.failed cp bin/iasl $DESTDIR$TARGETDIR/bin || touch $RDIR/.failed
} }
@ -734,8 +764,9 @@ build_LLVM() {
} }
build_MAKE() { build_MAKE() {
CC="$CC" CFLAGS="$HOSTCFLAGS" ../${MAKE_DIR}/configure --prefix=$TARGETDIR \ CC="$(hostcc host)" CXX="$(hostcxx host)" CFLAGS="$HOSTCFLAGS" \
--disable-nls || touch .failed ../${MAKE_DIR}/configure --prefix=$TARGETDIR --disable-nls \
|| touch .failed
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
$MAKE install DESTDIR=$DESTDIR || touch .failed $MAKE install DESTDIR=$DESTDIR || touch .failed
@ -743,7 +774,8 @@ build_MAKE() {
} }
build_CMAKE() { build_CMAKE() {
CC="$CC" CFLAGS="$HOSTCFLAGS" ../${CMAKE_DIR}/configure --prefix=$TARGETDIR \ CC="$(hostcc host)" CXX="$(hostcxx host)" CFLAGS="$HOSTCFLAGS" \
../${CMAKE_DIR}/configure --prefix=$TARGETDIR \
|| touch .failed || touch .failed
$MAKE $JOBS || touch .failed $MAKE $JOBS || touch .failed
$MAKE install DESTDIR=$DESTDIR || touch .failed $MAKE install DESTDIR=$DESTDIR || touch .failed
@ -905,9 +937,6 @@ PIGZ=$(searchtool pigz "" nofail)
searchtool m4 > /dev/null searchtool m4 > /dev/null
searchtool bison > /dev/null searchtool bison > /dev/null
searchtool flex flex > /dev/null searchtool flex flex > /dev/null
searchtool g++ "Free Software Foundation" nofail > /dev/null || \
searchtool clang "clang version" nofail > /dev/null || \
searchtool clang "LLVM" "" "g++" > /dev/null
searchtool bzip2 "bzip2," > /dev/null searchtool bzip2 "bzip2," > /dev/null
searchtool xz "XZ Utils" "" "xz-utils" > /dev/null searchtool xz "XZ Utils" "" "xz-utils" > /dev/null
@ -928,10 +957,37 @@ elif searchtool curl "^curl " > /dev/null; then
} }
fi fi
check_for_library "-lz" "zlib (zlib1g-dev or zlib-devel)" # Allow $CC override from the environment.
if [ -n "$CC" ]; then
if [ ! -x "$(command -v "$CC" 2>/dev/null)" ]; then
printf "${RED}ERROR:${red} CC is set to '%s' but wasn't found.${NC}\n" "$CC"
HALT_FOR_TOOLS=1
fi
else
if searchtool gcc "Free Software Foundation" nofail > /dev/null; then
CC=gcc
else
searchtool cc '^' nofail > /dev/null || please_install gcc
CC=cc
fi
fi
CC=cc # We can leave $CXX empty if it's not set since *buildgcc* never
check_cc # calls it directly. This way configure scripts can search for
# themselves and we still override it when a bootstrapped g++ is
# to be used (cf. hostcxx()).
if [ -n "$CXX" ]; then
if [ ! -x "$(command -v "$CXX" 2>/dev/null)" ]; then
printf "${RED}ERROR:${red} CXX is set to '%s' but wasn't found.${NC}\n" "$CXX"
HALT_FOR_TOOLS=1
fi
else
searchtool g++ "Free Software Foundation" nofail > /dev/null || \
searchtool clang "clang version" nofail > /dev/null || \
searchtool clang "LLVM" "" "g++" > /dev/null
fi
check_for_library "-lz" "zlib (zlib1g-dev or zlib-devel)"
if [ "$HALT_FOR_TOOLS" -ne 0 ]; then if [ "$HALT_FOR_TOOLS" -ne 0 ]; then
exit 1 exit 1