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Apple GCC 4.2 builds things differently. It no longer spawns a bunch of

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processes, but requires the project to use -j.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49744 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2008-04-15 21:33:52 +00:00
parent cc51c31953
commit ff140fa1f1
1 changed files with 33 additions and 4 deletions
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37
utils/buildit/build_llvm
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@ -95,10 +95,39 @@ else
LLVM_VERSION="$LLVM_SUBMIT_VERSION-$LLVM_SUBMIT_SUBVERSION"
fi
# Note: Don't pass -jN here. Building universal already has parallelism and we
# don't want to make the builders hit swap by firing off too many gcc's at the
# same time.
make $OPTIMIZE_OPTS UNIVERSAL=1 UNIVERSAL_ARCH="$TARGETS" \
GCC_VER=`cc --version 2>/dev/null | sed 1q`
if echo "$GCC_VER" | grep GCC > /dev/null; then
GCC_VER=`echo $GCC_VER | sed -e 's/.*(GCC) \([0-9.][0-9.]*\).*/\1/'`
MAJ_VER=`echo $GCC_VER | sed 's/\..*//'`
MIN_VER=`echo $GCC_VER | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
fi
JOBS_FLAG=""
# Note: If compiling with GCC 4.0, don't pass the -jN flag. Building universal
# already has parallelism and we don't want to make the builders hit swap by
# firing off too many gccs at the same time.
if [ "x$MAJ_VER" != "x4" -o "x$MIN_VER" != "x0" ]; then
# Figure out how many make processes to run.
SYSCTL=`sysctl -n hw.activecpu`
# hw.activecpu only available in 10.2.6 and later
if [ -z "$SYSCTL" ]; then
SYSCTL=`sysctl -n hw.ncpu`
fi
# sysctl -n hw.* does not work when invoked via B&I chroot /BuildRoot.
# Builders can default to 2, since even if they are single processor,
# nothing else is running on the machine.
if [ -z "$SYSCTL" ]; then
SYSCTL=2
fi
JOBS_FLAG="-j $SYSCTL"
fi
make $JOBS_FLAG $OPTIMIZE_OPTS UNIVERSAL=1 UNIVERSAL_ARCH="$TARGETS" \
LLVM_SUBMIT_VERSION=$LLVM_SUBMIT_VERSION \
LLVM_SUBMIT_SUBVERSION=$LLVM_SUBMIT_SUBVERSION \
CXXFLAGS="-DLLVM_VERSION_INFO='\" Apple Build #$LLVM_VERSION\"'"