Rename the wrapper script, for consistency

wrappers/clang-target-wrapper.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+TARGET="$(basename $0 | sed 's/-clang.*//')"
+EXE=$(basename $0 | sed 's/.*-\(clang.*\)/\1/')
+ARCH=$(echo $TARGET | sed 's/-.*//')
+SYSROOT="$(cd "$DIR"/../$TARGET && pwd)"
+case $ARCH in
+i686)
+	# Dwarf is the default for i686, but currently there's an issue
+	# in libunwind with unwinding clang generated dwarf opcodes on 32 bit
+	# x86, pending resolution at https://reviews.llvm.org/D38680.
+	ARCH_FLAGS=-fsjlj-exceptions
+	;;
+x86_64)
+	# Explicitly request dwarf on x86_64; SEH is the default there but
+	# libcxxabi lacks support for it.
+	ARCH_FLAGS=-fdwarf-exceptions
+	;;
+armv7)
+	# Dwarf is the default here.
+	ARCH_FLAGS=
+	;;
+aarch64)
+	# Dwarf is the default on aarch64; enable emulated TLS since native
+	# TLS isn't implemented yet.
+	ARCH_FLAGS=-femulated-tls
+	;;
+esac
+$DIR/$EXE -target $TARGET -rtlib=compiler-rt -stdlib=libc++ -fuse-ld=lld --sysroot="$SYSROOT" $ARCH_FLAGS -Qunused-arguments "$@"