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llvm-mingw/wrappers/clang-target-wrapper.sh
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#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
TARGET="$(basename $0 | sed 's/-[^-]*$//')"
EXE=$(basename $0 | sed 's/.*-\([^-]*\)/\1/')
case $EXE in
clang++|g++)
DRIVER_MODE=--driver-mode=g++
;;
esac
ARCH=$(echo $TARGET | sed 's/-.*//')
case $ARCH in
i686)
# Dwarf is the default for i686, but libunwind sometimes fails to
# to unwind correctly on i686. The issue can be reproduced with
# test/exception-locale.cpp. The issue might be related to
# DW_CFA_GNU_args_size, since it goes away if building
# libunwind/libcxxabi/libcxx and the test example with
# -mstack-alignment=16 -mstackrealign. (libunwind SVN r337312 fixed
# some handling relating to this dwarf opcode, which made
# test/hello-exception.cpp work properly, but apparently there are
# still issues with it).
ARCH_FLAGS=-fsjlj-exceptions
;;
x86_64)
# SEH is the default here.
ARCH_FLAGS=
;;
armv7)
# Dwarf is the default here.
ARCH_FLAGS=
;;
aarch64)
# Dwarf is the default here.
ARCH_FLAGS=
;;
esac
# Allow setting e.g. CCACHE=1 to wrap all building in ccache.
if [ -n "$CCACHE" ]; then
CCACHE=ccache
fi
$CCACHE $DIR/clang $DRIVER_MODE -target $TARGET -rtlib=compiler-rt -stdlib=libc++ -fuse-ld=lld -fuse-cxa-atexit $ARCH_FLAGS -Qunused-arguments "$@"