crossgcc: Add clang support

Add a new option -C|--clang to buildgcc to build a clang based
toolchain as opposed to a gcc based toolchain. This toolchain
comes with the required patches needed to successfully build
coreboot, and also with clang's famous scan-build script.

Change-Id: I1aea7cd6002edc4f3bb2b46dc1f69a212ad18f77
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10415
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Stefan Reinauer 2015-06-05 13:01:13 -07:00
parent 699ac27dec
commit 14ce213901
6 changed files with 147 additions and 9 deletions

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@ -22,8 +22,8 @@
cd `dirname $0`
CROSSGCC_DATE="June 3th, 2015"
CROSSGCC_VERSION="1.28"
CROSSGCC_DATE="June 4th, 2015"
CROSSGCC_VERSION="1.29"
# default settings
TARGETDIR=`pwd`/xgcc
@ -42,6 +42,8 @@ GDB_VERSION=7.9
IASL_VERSION=20150204
PYTHON_VERSION=3.4.3
EXPAT_VERSION=2.1.0
# CLANG version number
CLANG_VERSION=3.6.1
# GCC toolchain archive locations
GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}a.tar.bz2"
@ -54,6 +56,11 @@ GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
IASL_ARCHIVE="https://acpica.org/sites/acpica/files/acpica-unix-${IASL_VERSION}.tar.gz"
PYTHON_ARCHIVE="http://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz"
EXPAT_ARCHIVE="http://downloads.sourceforge.net/sourceforge/expat/expat-${EXPAT_VERSION}.tar.gz"
# CLANG toolchain archive locations
LLVM_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/llvm-${CLANG_VERSION}.src.tar.xz"
CFE_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/cfe-${CLANG_VERSION}.src.tar.xz"
CRT_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/compiler-rt-${CLANG_VERSION}.src.tar.xz"
CTE_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/clang-tools-extra-${CLANG_VERSION}.src.tar.xz"
# GCC toolchain directories
GMP_DIR="gmp-${GMP_VERSION}"
@ -66,10 +73,16 @@ GDB_DIR="gdb-${GDB_VERSION}"
IASL_DIR="acpica-unix-${IASL_VERSION}"
PYTHON_DIR="Python-${PYTHON_VERSION}"
EXPAT_DIR="expat-${EXPAT_VERSION}"
# CLANG toolchain directories
LLVM_DIR="llvm-${CLANG_VERSION}.src"
CFE_DIR="cfe-${CLANG_VERSION}.src"
CRT_DIR="compiler-rt-${CLANG_VERSION}.src"
CTE_DIR="clang-tools-extra-${CLANG_VERSION}.src"
unset MAKELEVEL MAKEFLAGS
SAVETEMPS=0
BUILDCLANG=0
SKIPGDB=1
SKIPPYTHON=1
@ -154,6 +167,7 @@ searchtool()
TAR=`searchtool tar` || exit $?
PATCH=`searchtool patch` || exit $?
MAKE=`searchtool make` || exit $?
CMAKE=`searchtool cmake "cmake"` || exit $?
SHA1SUM=`searchtool sha1sum`
SHA512SUM=`searchtool sha512sum`
CHECKSUM=$SHA1SUM
@ -244,12 +258,15 @@ cleanup()
rm -rf ${PYTHON_DIR} ${BUILDDIRPREFIX}-python
rm -rf ${IASL_DIR}
# CLANG
rm -rf ${LLVM_DIR} ${CFE_DIR} ${CRT_DIR} ${CTE_DIR} ${BUILDDIR}
printf "${green}ok${NC}\n"
}
myhelp()
{
printf "Usage: $0 [-V] [-c] [-p <platform>] [-d <target directory>] [-D <dest dir>] [-G] [-S]\n"
printf "Usage: $0 [-V] [-c] [-p <platform>] [-d <target directory>] [-D <dest dir>] [-C] [-G] [-S]\n"
printf " $0 [-V|--version]\n"
printf " $0 [-h|--help]\n\n"
@ -260,14 +277,16 @@ myhelp()
printf " [-t|--savetemps] don't remove temporary files after build\n"
printf " [-y|--ccache] Use ccache when building cross compiler\n"
printf " [-j|--jobs <num>] run <num> jobs in parallel in make\n"
printf " [-C|--clang] build CLANG toolchain"
printf " [-p|--platform <platform>] target platform to build cross compiler for\n"
printf " (defaults to $TARGETARCH)\n"
printf " (defaults to $TARGETARCH) *)\n"
printf " [-d|--directory <target dir>] target directory to install cross compiler to\n"
printf " (defaults to $TARGETDIR)\n\n"
printf " [-D|--destdir <dest dir>] destination directory to install cross compiler to\n"
printf " (for RPM builds, default unset)\n"
printf " [-G|--gdb] build GNU debugger\n"
printf " [-S|--scripting] build scripting support for GDB\n\n"
printf " [-G|--gdb] build GNU debugger *)\n"
printf " [-S|--scripting] build scripting support for GDB *)\n\n"
printf " *) option only available when building GCC toolchain (not with CLANG)\n\n"
}
myversion()
@ -300,11 +319,11 @@ getopt - > /dev/null 2>/dev/null || gcc -o getopt getopt.c
getoptbrand="`getopt -V | sed -e '1!d' -e 's,^\(......\).*,\1,'`"
if [ "${getoptbrand}" = "getopt" ]; then
# Detected GNU getopt that supports long options.
args=`getopt -l version,help,clean,directory:,platform:,jobs:,destdir:,savetemps,skip-gdb,ccache Vhcd:p:j:D:tGy -- "$@"`
args=`getopt -l version,help,clean,directory:,platform:,jobs:,destdir:,savetemps,skip-gdb,ccache,clang Vhcd:p:j:D:tGyC -- "$@"`
eval set "$args"
else
# Detected non-GNU getopt
args=`getopt Vhcd:p:j:D:tGy $*`
args=`getopt Vhcd:p:j:D:tGyC $*`
set -- $args
fi
@ -323,6 +342,7 @@ while true ; do
-p|--platform) shift; TARGETARCH="$1"; shift;;
-D|--destdir) shift; DESTDIR="$1"; shift;;
-j|--jobs) shift; JOBS="-j $1"; shift;;
-C|--clang) shift; BUILDCLANG=1;;
-G|--gdb) shift; SKIPGDB=0;;
-S|--scripting) shift; SKIPPYTHON=0;;
-y|--ccache) shift; USECCACHE=1;;
@ -345,11 +365,17 @@ case "$TARGETARCH" in
*) printf "${red}WARNING: Unsupported architecture $TARGETARCH.${NC}\n\n"; ;;
esac
echo "Target arch is now $TARGETARCH"
if [ "$BUILDCLANG" -eq 0 ]; then
echo "Target architecture is now $TARGETARCH"
NAME="${TARGETARCH} cross"
PACKAGES="GMP MPFR MPC LIBELF BINUTILS GCC IASL"
else
NAME=clang
PACKAGES="LLVM CFE CRT CTE"
fi
BUILDDIRPREFIX=build-${TARGETARCH}
BUILDDIR=$PWD/build-clang
if [ "$clean" = "1" ]; then
cleanup
@ -386,6 +412,7 @@ for P in $PACKAGES; do
done
printf "Unpacked and patched ... ${green}ok${NC}\n"
if [[ "$PACKAGES" == *GCC* ]]; then
CC=cc
if [ $UNAME = "Darwin" ]; then
#GCC_OPTIONS="$GCC_OPTIONS --enable-threads=posix"
@ -408,6 +435,7 @@ if [ $UNAME = "Darwin" ]; then
CC=llvm-gcc
fi
fi
fi # GCC
if [ "$USECCACHE" = 1 ]; then
CC="ccache $CC"
@ -415,6 +443,7 @@ fi
mkdir -p ${BUILDDIRPREFIX}-gmp ${BUILDDIRPREFIX}-mpfr ${BUILDDIRPREFIX}-mpc ${BUILDDIRPREFIX}-libelf ${BUILDDIRPREFIX}-binutils \
${BUILDDIRPREFIX}-gcc ${BUILDDIRPREFIX}-python ${BUILDDIRPREFIX}-expat ${BUILDDIRPREFIX}-gdb
mkdir -p ${BUILDDIR}
mkdir -p $DESTDIR$TARGETDIR/bin
export PATH=$DESTDIR$TARGETDIR/bin:$PATH
@ -666,6 +695,32 @@ else
) 2>&1 | wait_for_build "$IASL_DIR/source/compiler" || exit 1
fi
[[ "$PACKAGES" == *CLANG* ]] && \
if [ -f ${BUILDDIR}/.success ]; then
printf "Skipping CLANG as it is already built\n"
else
printf "Building CLANG ${CLANG_VERSION} ... "
(
ln -sf $PWD/$CFE_DIR $LLVM_DIR/tools/clang
ln -sf $PWD/$CTE_DIR $LLVM_DIR/tools/clang/tools/extra
ln -sf $PWD/$CRT_DIR $LLVM_DIR/projects/compiler-rt
cd ${BUILDDIR}
$CMAKE -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=$DESTDIR$TARGETDIR \
-DCMAKE_BUILD_TYPE=Release ../$LLVM_DIR || touch .failed
$MAKE $JOBS || touch .failed
$MAKE install || touch .failed
cd -
cp -a $CFE_DIR/tools/scan-build/* $DESTDIR$TARGETDIR/bin
cp -a $CFE_DIR/tools/scan-view/* $DESTDIR$TARGETDIR/bin
if [ ! -f .failed ]; then touch .success; fi
) 2>&1 | wait_for_build "${BUILDDIR}" || exit 1
fi
# Adding git information of current tree to target directory
# for reproducibility
PROGNAME=`basename "$0"`

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@ -0,0 +1,79 @@
Frontend driver patch from Edward O'Callaghan
https://llvm.org/bugs/show_bug.cgi?id=21538
Index: include/clang/Driver/Driver.h
===================================================================
--- cfe-3.6.1.src/include/clang/Driver/Driver.h (revision 211898)
+++ cfe-3.6.1.src/include/clang/Driver/Driver.h (working copy)
@@ -325,6 +325,14 @@
// FIXME: This should be in CompilationInfo.
std::string GetFilePath(const char *Name, const ToolChain &TC) const;
+ /// GetCompilerRTPath - Find Compiler-RT library path
+ ///
+ /// \param TC - The provided tool chain for additional information on
+ /// directories to search.
+ //
+ // FIXME: This should be in CompilationInfo.
+ std::string GetCompilerRTPath(const ToolChain &TC) const;
+
/// GetProgramPath - Lookup \p Name in the list of program search paths.
///
/// \param TC - The provided tool chain for additional information on
Index: include/clang/Driver/Options.td
===================================================================
--- cfe-3.6.1.src/include/clang/Driver/Options.td (revision 211898)
+++ cfe-3.6.1.src/include/clang/Driver/Options.td (working copy)
@@ -1269,6 +1269,8 @@
HelpText<"Enable Objective-C Ivar layout bitmap print trace">;
def print_libgcc_file_name : Flag<["-", "--"], "print-libgcc-file-name">,
HelpText<"Print the library path for \"libgcc.a\"">;
+def print_librt_file_name : Flag<["-", "--"], "print-librt-file-name">,
+ HelpText<"Print the library path for \"libclang_rt.builtins-ARCH.a\"">;
def print_multi_directory : Flag<["-", "--"], "print-multi-directory">;
def print_multi_lib : Flag<["-", "--"], "print-multi-lib">;
def print_multi_os_directory : Flag<["-", "--"], "print-multi-os-directory">;
Index: lib/Driver/Driver.cpp
===================================================================
--- cfe-3.6.1.src/lib/Driver/Driver.cpp (revision 211898)
+++ cfe-3.6.1.src/lib/Driver/Driver.cpp (working copy)
@@ -756,6 +756,11 @@
return false;
}
+ if (C.getArgs().hasArg(options::OPT_print_librt_file_name)) {
+ llvm::outs() << GetCompilerRTPath(TC) << "\n";
+ return false;
+ }
+
if (C.getArgs().hasArg(options::OPT_print_multi_lib)) {
const MultilibSet &Multilibs = TC.getMultilibs();
@@ -1820,6 +1825,26 @@
return Name;
}
+std::string Driver::GetCompilerRTPath(const ToolChain &TC) const {
+ // The runtimes are located in the OS-specific resource directory.
+ SmallString<128> Res(TC.getDriver().ResourceDir);
+ const llvm::Triple &Triple = TC.getTriple();
+
+ // TC.getOS() yield "freebsd10.0" whereas "freebsd" is expected.
+ StringRef OSLibName = (Triple.getOS() == llvm::Triple::FreeBSD) ?
+ "freebsd" : TC.getOS();
+ llvm::sys::path::append(Res, "lib", OSLibName);
+
+ StringRef archName = TC.getArchName();
+ // Until ARM libraries are build separately, we have them all in one library
+ if (TC.getArch() == llvm::Triple::arm ||
+ TC.getArch() == llvm::Triple::armeb)
+ archName = "arm";
+
+ llvm::sys::path::append(Res, Twine("libclang_rt.builtins-") + archName + ".a");
+ return Res.str();
+}
+
std::string Driver::GetProgramPath(const char *Name,
const ToolChain &TC) const {
// FIXME: Needs a better variable than DefaultTargetTriple

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@ -0,0 +1 @@
b7221d8fdd27e3ed519d0281646e82e17b51122c tarballs/cfe-3.6.1.src.tar.xz

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@ -0,0 +1 @@
d93136f56999d8ae1ffebb9cd0cd7f3c27ba77c4 tarballs/clang-tools-extra-3.6.1.src.tar.xz

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@ -0,0 +1 @@
85dccdc6ccd9675e871dfd2786b45fbf53518485 tarballs/compiler-rt-3.6.1.src.tar.xz

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@ -0,0 +1 @@
01ecab99adc9030ee34e9a2e19e65dfe64e1affe tarballs/llvm-3.6.1.src.tar.xz