Martin Storsjö
f0aa7c4c10
This reverts commit ca43ab5ccd.
It was reported in https://github.com/mstorsjo/llvm-mingw/issues/8 that
the dwarf unwinding on i686 doesn't always work.
This commit adds a testcase for the case that didn't work previously.
39 lines
1.2 KiB
Bash
Executable File
39 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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DIR="$(cd "$(dirname "$0")" && pwd)"
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TARGET="$(basename $0 | sed 's/-[^-]*$//')"
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EXE=$(basename $0 | sed 's/.*-\([^-]*\)/\1/')
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case $EXE in
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clang++|g++)
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DRIVER_MODE=--driver-mode=g++
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;;
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esac
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ARCH=$(echo $TARGET | sed 's/-.*//')
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case $ARCH in
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i686)
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# Dwarf is the default for i686, but libunwind sometimes fails to
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# to unwind correctly on i686. This issue might be related to cases
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# of DW_CFA_GNU_args_size (which were adjusted in libunwind SVN r337312).
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# The issue can be reproduced with test/exception-locale.cpp.
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# The issue goes away if building libunwind/libcxxabi/libcxx and the
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# test example with -mstack-alignment=16 -mstackrealign.
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ARCH_FLAGS=-fsjlj-exceptions
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;;
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x86_64)
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# SEH is the default here.
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ARCH_FLAGS=
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;;
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armv7)
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# Dwarf is the default here.
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ARCH_FLAGS=
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;;
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aarch64)
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# Dwarf is the default here.
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ARCH_FLAGS=
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;;
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esac
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# Allow setting e.g. CCACHE=1 to wrap all building in ccache.
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if [ -n "$CCACHE" ]; then
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CCACHE=ccache
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fi
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$CCACHE $DIR/clang $DRIVER_MODE -target $TARGET -rtlib=compiler-rt -stdlib=libc++ -fuse-ld=lld -fuse-cxa-atexit $ARCH_FLAGS -Qunused-arguments "$@"
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