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| author | Ankit Meel <ankitjmeel@gmail.com> | 2020-11-02 12:40:10 +0300 |
|---|---|---|
| committer | Ankit Meel <ankitjmeel@gmail.com> | 2020-11-02 12:42:10 +0300 |
| commit | 1daa3c3f0a1cfd74bef527e0207f38154e591d46 (patch) | |
| tree | 1851541dd2c81f8987c77f39a96dc794ab5d8c6f /CMakeLists.txt | |
| parent | cc09c0d0484be334c985ccd143c46c266abb8aa0 (diff) | |
Clang/GCC: use relative path in __FILE__ macro
This change removes the user-specific information from
macros like `__FILE__` and keeps it relative to top level
source or build (for generated files) directory.
It makes traces concise.
Added option `WITH_COMPILER_SHORT_FILE_MACRO` enabled by default.
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D9386
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index eb04da749ab..9c5ab607bf6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -570,6 +570,11 @@ if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang") endif() endif() +if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang") + option(WITH_COMPILER_SHORT_FILE_MACRO "Make paths in macros like __FILE__ relative to top level source and build directories." ON) + mark_as_advanced(WITH_COMPILER_SHORT_FILE_MACRO) +endif() + if(WIN32) # Use hardcoded paths or find_package to find externals option(WITH_WINDOWS_FIND_MODULES "Use find_package to locate libraries" OFF) @@ -1655,6 +1660,38 @@ if(UNIX AND NOT APPLE) endif() endif() +if(WITH_COMPILER_SHORT_FILE_MACRO) + # Use '-fmacro-prefix-map' for Clang and GCC (MSVC doesn't support this). + if((CMAKE_COMPILER_IS_GNUCC AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 8.4) OR + (CMAKE_C_COMPILER_ID STREQUAL "Clang" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.0) OR + (CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0) + ) + + if(APPLE) + if(XCODE AND ${XCODE_VERSION} VERSION_LESS 12.0) + # Developers may have say LLVM Clang-10.0.1 toolchain with Xcode-11. + message_first_run(WARNING + "-fmacro-prefix-map flag is NOT supported by Clang shipped with Xcode-${XCODE_VERSION}." + " Some Xcode functionality in Product menu may not work. Disabling WITH_COMPILER_SHORT_FILE_MACRO." + ) + set(WITH_COMPILER_SHORT_FILE_MACRO OFF) + endif() + endif() + if(WITH_COMPILER_SHORT_FILE_MACRO) + set(PLATFORM_CFLAGS "${PLATFORM_CFLAGS} \ +-fmacro-prefix-map=\"${CMAKE_SOURCE_DIR}/\"=\"\" \ +-fmacro-prefix-map=\"${CMAKE_BINARY_DIR}/\"=\"\"" + ) + endif() + else() + message_first_run(WARNING + "-fmacro-prefix-map flag is NOT supported by ${CMAKE_C_COMPILER_ID} version-${CMAKE_C_COMPILER_VERSION}." + " Disabling WITH_COMPILER_SHORT_FILE_MACRO." + ) + set(WITH_COMPILER_SHORT_FILE_MACRO OFF) + endif() +endif() + # Include warnings first, so its possible to disable them with user defined flags # eg: -Wno-uninitialized set(CMAKE_C_FLAGS "${C_WARNINGS} ${CMAKE_C_FLAGS} ${PLATFORM_CFLAGS}") |