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| author | Stephen Kelly <steveire@gmail.com> | 2012-05-30 18:13:09 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2012-06-12 19:38:48 (GMT) |
| commit | bd3496300262bd26073ce03e020731c592249148 (patch) | |
| tree | c5beb67ff16ac1da10ec76aebf8f62fc3a97b75f /Tests/PositionIndependentTargets/targets | |
| parent | 55d7aa4c44d78322df76679db768154568e51385 (diff) | |
| download | CMake-bd3496300262bd26073ce03e020731c592249148.zip CMake-bd3496300262bd26073ce03e020731c592249148.tar.gz CMake-bd3496300262bd26073ce03e020731c592249148.tar.bz2 | |
Refactor generation of shared library flags
CMAKE_SHARED_LIBRARY_<lang>_FLAGS has flags on various platforms for a
variety of purposes that are correlated with shared libraries but not
exclusive to them. Refactor generation of these flags to use new
purpose-specific platform variables
CMAKE_<lang>_COMPILE_OPTIONS_DLL
CMAKE_<lang>_COMPILE_OPTIONS_PIC
CMAKE_<lang>_COMPILE_OPTIONS_PIE
Activate the DLL flags specifically for shared libraries. Add a new
POSITION_INDEPENDENT_CODE target property to activate PIC/PIE flags, and
default to true for shared libraries to preserve default behavior.
Initialize the new property from CMAKE_POSITION_INDEPENDENT_CODE to
allow easy global configuration in projects.
Although the default behavior is unchanged by this refactoring, the new
approach ignores CMAKE_SHARED_LIBRARY_<lang>_FLAGS completely. We must
leave it set in case projects reference the value. Furthermore, if a
project modifies CMAKE_SHARED_LIBRARY_<lang>_FLAGS it expects the new
value to be used. Add policy CMP0018 to handle compatibility with
projects that modify this platform variable.
Add a PositionIndependentCode test on platforms where we can get
meaningful results.
Diffstat (limited to 'Tests/PositionIndependentTargets/targets')
| -rw-r--r-- | Tests/PositionIndependentTargets/targets/CMakeLists.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Tests/PositionIndependentTargets/targets/CMakeLists.txt b/Tests/PositionIndependentTargets/targets/CMakeLists.txt new file mode 100644 index 0000000..4724c85 --- /dev/null +++ b/Tests/PositionIndependentTargets/targets/CMakeLists.txt @@ -0,0 +1,20 @@ + +add_executable(test_target_executable_properties "${CMAKE_CURRENT_SOURCE_DIR}/../pic_main.cpp") +set_target_properties(test_target_executable_properties + PROPERTIES + POSITION_INDEPENDENT_CODE True +) + +add_library(test_target_shared_library_properties SHARED "${CMAKE_CURRENT_SOURCE_DIR}/../pic_lib.cpp") +set_target_properties(test_target_shared_library_properties + PROPERTIES + POSITION_INDEPENDENT_CODE True + DEFINE_SYMBOL PIC_TEST_BUILD_DLL +) + +add_library(test_target_static_library_properties STATIC "${CMAKE_CURRENT_SOURCE_DIR}/../pic_lib.cpp") +set_target_properties(test_target_static_library_properties + PROPERTIES + POSITION_INDEPENDENT_CODE True + COMPILE_DEFINITIONS PIC_TEST_STATIC_BUILD +) |