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llvm-mingw/wrappers/clang-target-wrapper
T
Martin Storsjö a3324bfb07 Use dwarf exceptions on x86_64 as well
SEH is the default on x86_64, but libcxxabi lacks support for it.
2017-11-30 09:04:32 +02:00

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#!/usr/bin/env bash
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
TARGET="$(basename $0 | sed 's/-clang.*//')"
EXE=$(basename $0 | sed 's/.*-\(clang.*\)/\1/')
# We could set these defaults in the clang frontend driver, but that's not yet merged upstream
ARCH=$(echo $TARGET | sed 's/-.*//')
case $ARCH in
i686)
# Dwarf is the default for i686, but currently there's an issue
# in libunwind with unwinding clang generated dwarf opcodes on 32 bit
# x86, pending resolution at https://reviews.llvm.org/D38680.
EH_FLAG=-fsjlj-exceptions
;;
armv7|aarch64)
# Dwarf is the default for these targets.
EH_FLAG=
;;
x86_64)
# Explicitly request dwarf on x86_64; SEH is the default there but
# libcxxabi lacks support for it.
EH_FLAG=-fdwarf-exceptions
;;
esac
$DIR/$EXE -target $TARGET -rtlib=compiler-rt -stdlib=libc++ -fuse-ld=lld $EH_FLAG -Qunused-arguments "$@"