[coreboot-gerrit] Patch set updated for coreboot: crossgcc: Fix compilation on clang systems
Martin Roth (martinroth@google.com)
gerrit at coreboot.org
Tue Apr 5 17:11:55 CEST 2016
Martin Roth (martinroth at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14232
-gerrit
commit 6f9f8d1d228fbc25c9d9215f85953eb631e82839
Author: Stefan Reinauer <stefan.reinauer at coreboot.org>
Date: Sun Apr 3 20:52:01 2016 -0700
crossgcc: Fix compilation on clang systems
Most targets have been broken on systems with CLANG being the default
compiler (OS X and some BSDs). CLANG dislikes some of GCC's autogenerated
code. We also missed switching CFLAGS to CXXFLAGS when GCC switched to C++
compilation per default.
Change-Id: I87caa1a15982c431048aa79748ea7ef655a9a3a1
Signed-off-by: Stefan Reinauer <stefan.reinauer at coreboot.org>
---
util/crossgcc/buildgcc | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 525b574..96e4c19 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -18,8 +18,8 @@
cd $(dirname $0)
-CROSSGCC_DATE="March 21st, 2016"
-CROSSGCC_VERSION="1.37"
+CROSSGCC_DATE="April 3rd, 2016"
+CROSSGCC_VERSION="1.38"
# default settings
PACKAGE=GCC
@@ -453,13 +453,20 @@ build_BINUTILS() {
build_GCC() {
+ # Work around crazy code generator in GCC that confuses CLANG.
+ $CC --version | grep clang &>/dev/null &&
+ HOSTCFLAGS="$HOSTCFLAGS -fbracket-depth=1024"
+
# GCC does not honor HOSTCFLAGS at all. CFLAGS are used for
# both target and host object files.
# There's a work-around called CFLAGS_FOR_BUILD and CFLAGS_FOR_TARGET
# but it does not seem to work properly. At least the host library
# libiberty is not compiled with CFLAGS_FOR_BUILD.
+ # Also set the CXX version of the flags because GCC is now compiled
+ # using C++.
CC="$CC" CFLAGS_FOR_TARGET="-O2 -Dinhibit_libc" CFLAGS="$HOSTCFLAGS" \
- CFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
+ CFLAGS_FOR_BUILD="$HOSTCFLAGS" CXXFLAGS="$HOSTCFLAGS" \
+ CXXFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
--prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \
--target=${TARGETARCH} --disable-werror --disable-shared \
--enable-lto --enable-plugins --enable-gold --enable-ld=default \
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