diff options
Diffstat (limited to 'tools/gold/CMakeLists.txt')
-rw-r--r-- | tools/gold/CMakeLists.txt | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tools/gold/CMakeLists.txt b/tools/gold/CMakeLists.txt new file mode 100644 index 0000000..d8633e6 --- /dev/null +++ b/tools/gold/CMakeLists.txt @@ -0,0 +1,43 @@ +set(LLVM_BINUTILS_INCDIR "/usr/include" CACHE PATH + "PATH to binutils/include containing plugin-api.h for gold plugin.") + +if( NOT EXISTS "${LLVM_BINUTILS_INCDIR}/plugin-api.h" ) + message(STATUS "plugin-api.h not found. gold plugin excluded from the build.") +else() + include_directories( ${LLVM_BINUTILS_INCDIR} ) + + # Because off_t is used in the public API, the largefile parts are required for + # ABI compatibility. + add_definitions( -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 ) + + set(LLVM_LINK_COMPONENTS support) + + add_llvm_loadable_module(LLVMgold + gold-plugin.cpp + ) + + # Makefile.rules contains a special cases for OpenBSD, Darwin and + # Windows. We restrict ourselves to Linux for the time being. + set(srcexp ${CMAKE_CURRENT_SOURCE_DIR}/gold.exports) + add_custom_command(OUTPUT exportsfile + COMMAND echo "{" > exportsfile + COMMAND grep -q "\\<" ${srcexp} && echo " global:" >> exportsfile || : + COMMAND sed -e "s/$/;/" -e "s/^/ /" < ${srcexp} >> exportsfile + COMMAND echo " local: *;" >> exportsfile + COMMAND echo "};" >> exportsfile + DEPENDS ${srcexp} + VERBATIM + COMMENT "Creating export file for gold plugin") + add_custom_target(gold_exports DEPENDS exportsfile) + set_property(DIRECTORY APPEND + PROPERTY ADDITIONAL_MAKE_CLEAN_FILES exportsfile) + + # Force re-linking when the exports file changes. Actually, it + # forces recompilation of gold-plugin.cpp. The LINK_DEPENDS target + # property only works for makefile-based generators. + set_property(SOURCE gold-plugin.cpp APPEND PROPERTY + OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/exportsfile) + + target_link_libraries(LLVMgold LTO -Wl,--version-script,exportsfile) + add_dependencies(LLVMgold gold_exports) +endif() |