diff options
Diffstat (limited to 'cmake/modules/buildtools/LDGOLD.cmake')
| -rw-r--r-- | cmake/modules/buildtools/LDGOLD.cmake | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cmake/modules/buildtools/LDGOLD.cmake b/cmake/modules/buildtools/LDGOLD.cmake new file mode 100644 index 0000000..cdf71bf --- /dev/null +++ b/cmake/modules/buildtools/LDGOLD.cmake @@ -0,0 +1,42 @@ +if(ENABLE_GOLD) + execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version ERROR_QUIET OUTPUT_VARIABLE LD_VERSION) + if(LD_VERSION MATCHES "GNU gold") + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold") + set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold") + set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold") + set(LDGOLD_FOUND TRUE) + message(STATUS "Linker: GNU gold") + else() + message(WARNING "GNU gold linker is not available, falling back to default system linker") + endif() +else() + message(STATUS "Linker: Default system linker") +endif() + +set(DEFAULT_ENABLE_DEBUGFISSION FALSE) +if(CMAKE_BUILD_TYPE STREQUAL Debug OR + CMAKE_BUILD_TYPE STREQUAL RelWithDebInfo AND + LDGOLD_FOUND) + set(DEFAULT_ENABLE_DEBUGFISSION TRUE) +endif() + +include(CMakeDependentOption) +cmake_dependent_option(ENABLE_DEBUGFISSION "Enable Debug Fission support" ON + "DEFAULT_ENABLE_DEBUGFISSION" OFF) + +set(DEBUGFISSION_FOUND FALSE) +if(ENABLE_DEBUGFISSION) + include(TestCXXAcceptsFlag) + check_cxx_accepts_flag(-gsplit-dwarf CXX_ACCEPTS_GSPLIT_DWARF) + if(CXX_ACCEPTS_GSPLIT_DWARF) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -gsplit-dwarf") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -gsplit-dwarf") + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index") + set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index") + set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index") + set(DEBUGFISSION_FOUND TRUE) + message(STATUS "Debug Fission enabled") + else() + message(WARNING "Debug Fission is not available") + endif() +endif() |