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| author | Logan Chien <tzuhsiang.chien@gmail.com> | 2015-01-22 13:39:08 +0000 |
|---|---|---|
| committer | Logan Chien <tzuhsiang.chien@gmail.com> | 2015-01-22 13:39:08 +0000 |
| commit | 1c5ae1314f7ce7a655b172c8c77a7768fff1b3f6 (patch) | |
| tree | 5f8d722d48d7715d182064dd3aa653f02b593ea0 | |
| parent | 045a7c882bee744550c09c84109be93dc6142c11 (diff) | |
Add -funwind-tables to CMAKE_C_FLAGS.
Without -funwind-tables, the compiler won't generate the unwinding
table for these C functions. However, the functions in libunwind,
such as `_Unwind_Backtrace()`, WILL unwind stack to get the backtrace.
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@226823 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | CMakeLists.txt | 4 | ||||
| -rw-r--r-- | cmake/config-ix.cmake | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index aaada04..6be1e15 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -164,6 +164,7 @@ macro(append_if list condition var) endif() endmacro() +set(LIBCXXABI_C_FLAGS "") set(LIBCXXABI_CXX_FLAGS "") set(LIBCXXABI_COMPILE_FLAGS "") set(LIBCXXABI_LINK_FLAGS "") @@ -216,6 +217,8 @@ endif() append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG -fstrict-aliasing) append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_EHSC_FLAG -EHsc) +append_if(LIBCXXABI_C_FLAGS LIBCXXABI_HAS_FUNWIND_TABLES -funwind-tables) + # Assert string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) if (LIBCXXABI_ENABLE_ASSERTIONS) @@ -260,6 +263,7 @@ append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_SYSROOT "--sysroot ${LIBCXXABI_SYSROOT}") string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${LIBCXXABI_CXX_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_FLAGS}") +set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBCXXABI_C_FLAGS}") #=============================================================================== # Setup Source Code diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake index ac31eed..b6ee40f 100644 --- a/cmake/config-ix.cmake +++ b/cmake/config-ix.cmake @@ -1,7 +1,9 @@ include(CheckLibraryExists) +include(CheckCCompilerFlag) include(CheckCXXCompilerFlag) # Check compiler flags +check_c_compiler_flag(-funwind-tables LIBCXXABI_HAS_FUNWIND_TABLES) check_cxx_compiler_flag(-fPIC LIBCXXABI_HAS_FPIC_FLAG) check_cxx_compiler_flag(-fstrict-aliasing LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG) check_cxx_compiler_flag(-nodefaultlibs LIBCXXABI_HAS_NODEFAULTLIBS_FLAG) |