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llvm-mingw/wrappers/clang-target-wrapper.sh
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#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
BASENAME="$(basename "$0")"
TARGET="${BASENAME%-*}"
EXE="${BASENAME##*-}"
DEFAULT_TARGET=x86_64-w64-mingw32
if [ "$TARGET" = "$BASENAME" ]; then
TARGET=$DEFAULT_TARGET
fi
ARCH="${TARGET%%-*}"
# Allow setting e.g. CCACHE=1 to wrap all building in ccache.
if [ -n "$CCACHE" ]; then
CCACHE=ccache
fi
# If changing this wrapper, change clang-target-wrapper.c accordingly.
CLANG="$DIR/clang"
FLAGS=""
case $EXE in
clang++|g++|c++)
FLAGS="$FLAGS --driver-mode=g++"
;;
esac
case $ARCH in
i686)
# Dwarf is the default for i686, but libunwind sometimes fails to
# to unwind correctly on i686. The issue can be reproduced with
# test/exception-locale.cpp. The issue might be related to
# DW_CFA_GNU_args_size, since it goes away if building
# libunwind/libcxxabi/libcxx and the test example with
# -mstack-alignment=16 -mstackrealign. (libunwind SVN r337312 fixed
# some handling relating to this dwarf opcode, which made
# test/hello-exception.cpp work properly, but apparently there are
# still issues with it).
FLAGS="$FLAGS -fsjlj-exceptions"
;;
x86_64)
# SEH is the default here.
;;
armv7)
# Dwarf is the default here.
;;
aarch64)
# Dwarf is the default here.
;;
esac
FLAGS="$FLAGS -target $TARGET"
FLAGS="$FLAGS -rtlib=compiler-rt"
FLAGS="$FLAGS -stdlib=libc++"
FLAGS="$FLAGS -fuse-ld=lld"
FLAGS="$FLAGS -fuse-cxa-atexit"
FLAGS="$FLAGS -Qunused-arguments"
$CCACHE $CLANG $FLAGS "$@"