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libcxx: Fix ARM libc++/abi and libunwind buildbot.

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The test cases were crashing due to the mixed usage of the unwinding
functions from both libunwind and libgcc_s.  The unwind functions are
mixed because the "llvm_unwinder" entry is not available in the
lit.site.cfg for libc++.  As a result, "-lgcc_s" is picked instead of
"-lunwind".  The extra option to lit --param=link_flags="-lunwind" won't
help either.

This CL fix the problem by adding llvm_unwinder to lit.site.cfg.in.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@237518 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Logan Chien 2015-05-16 12:44:31 +00:00
parent 22a6d5aede
commit 5e5e11d90d
2 changed files with 5 additions and 0 deletions
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4
CMakeLists.txt
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@ -100,6 +100,10 @@ set(LIBCXX_CXX_ABI "${LIBCXX_CXX_ABI}" CACHE STRING
"Specify C++ ABI library to use." FORCE)
set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
# Build libc++abi with libunwind. We need this option to determine whether to
# link with libunwind or libgcc_s while running the test cases.
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF)
# TODO(ericwf): Remove these options by March/25/2015.
# These CMake options have been removed in favor of a generic option
# "LIBCXX_CXX_ABI_INCLUDE_PATHS". Issue an explicit error message explaining

1
test/lit.site.cfg.in
View File

@ -23,6 +23,7 @@ config.gcc_toolchain = "@LIBCXX_GCC_TOOLCHAIN@"
config.generate_coverage = "@LIBCXX_GENERATE_COVERAGE@"
config.target_info = "@LIBCXX_TARGET_INFO@"
config.executor = "@LIBCXX_EXECUTOR@"
config.llvm_unwinder = "@LIBCXXABI_USE_LLVM_UNWINDER@"
# Let the main config do the real work.
lit_config.load_config(config, "@LIBCXX_SOURCE_DIR@/test/lit.cfg")