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| author | Marc Chevrier <marc.chevrier@gmail.com> | 2018-10-02 15:34:57 (GMT) |
|---|---|---|
| committer | Marc Chevrier <marc.chevrier@gmail.com> | 2018-11-11 16:34:09 (GMT) |
| commit | c4b4d8b3a67718e29edb5676273e528dab566672 (patch) | |
| tree | ddb8839ae8a5a15b5ffe8dd8190cf873841475da /Modules/Compiler/Clang.cmake | |
| parent | 724a0346f7bd424ce0e5db246cee46db9f377a6f (diff) | |
| download | CMake-c4b4d8b3a67718e29edb5676273e528dab566672.zip CMake-c4b4d8b3a67718e29edb5676273e528dab566672.tar.gz CMake-c4b4d8b3a67718e29edb5676273e528dab566672.tar.bz2 | |
POSITION_INDEPENDENT_CODE: Manage link flags for executables
Fixes: #14983, #16561
Diffstat (limited to 'Modules/Compiler/Clang.cmake')
| -rw-r--r-- | Modules/Compiler/Clang.cmake | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Modules/Compiler/Clang.cmake b/Modules/Compiler/Clang.cmake index e23470b..7cee9c7 100644 --- a/Modules/Compiler/Clang.cmake +++ b/Modules/Compiler/Clang.cmake @@ -21,6 +21,26 @@ else() macro(__compiler_clang lang) __compiler_gnu(${lang}) set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIE") + # Link options for PIE are already set in 'Compiler/GNU.cmake' + # but clang may require alternate syntax on some platforms + if (NOT CMAKE_${lang}_FLAG_PIE) + cmake_check_compiler_flag(${lang} "${CMAKE_${lang}_COMPILE_OPTIONS_PIE};-Xlinker;-pie" + CMAKE_${lang}_FLAG_XLINKER_PIE) + if (CMAKE_${lang}_FLAG_XLINKER_PIE) + set(CMAKE_${lang}_LINK_OPTIONS_PIE ${CMAKE_${lang}_COMPILE_OPTIONS_PIE} "-Xlinker" "-pie") + else() + set(CMAKE_${lang}_LINK_OPTIONS_PIE "") + endif() + endif() + if (NOT CMAKE_${lang}_FLAG_NO_PIE) + cmake_check_compiler_flag(${lang} "-Xlinker;-no_pie" + CMAKE_${lang}_FLAG_XLINKER_NO_PIE) + if (CMAKE_${lang}_FLAG_XLINKER_NO_PIE) + set(CMAKE_${lang}_LINK_OPTIONS_NO_PIE "-Xlinker" "-no_pie") + else() + set(CMAKE_${lang}_LINK_OPTIONS_NO_PIE "") + endif() + endif() set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ") set(CMAKE_${lang}_COMPILE_OPTIONS_VISIBILITY "-fvisibility=") if(CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4.0) |