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| author | Brad King <brad.king@kitware.com> | 2008-01-21 23:30:17 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2008-01-21 23:30:17 (GMT) |
| commit | a28b197b11f4b647c67a6914c731077972449343 (patch) | |
| tree | 48e3cad97678cc49ef2b63c210d4e712a4dc58fa /Modules/CMakeDetermineCompilerABI.cmake | |
| parent | 19d22f6105ae064378e9175bed6a01b197e2eb5d (diff) | |
| download | CMake-a28b197b11f4b647c67a6914c731077972449343.zip CMake-a28b197b11f4b647c67a6914c731077972449343.tar.gz CMake-a28b197b11f4b647c67a6914c731077972449343.tar.bz2 | |
ENH: Generalize the check for sizeof void* to detect more ABI information.
Diffstat (limited to 'Modules/CMakeDetermineCompilerABI.cmake')
| -rw-r--r-- | Modules/CMakeDetermineCompilerABI.cmake | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Modules/CMakeDetermineCompilerABI.cmake b/Modules/CMakeDetermineCompilerABI.cmake new file mode 100644 index 0000000..0571dc6 --- /dev/null +++ b/Modules/CMakeDetermineCompilerABI.cmake @@ -0,0 +1,49 @@ + +# Function to compile a source file to identify the compiler ABI. +# This is used internally by CMake and should not be included by user +# code. + +FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src) + IF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED) + MESSAGE(STATUS "Detecting ${lang} compiler info") + + # Compile the ABI identification source. + SET(BIN "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeDetermineCompilerABI_${lang}.bin") + TRY_COMPILE(CMAKE_DETERMINE_${lang}_ABI_COMPILED + ${CMAKE_BINARY_DIR} ${src} + OUTPUT_VARIABLE OUTPUT + COPY_FILE "${BIN}" + ) + + # Load the resulting information strings. + IF(CMAKE_DETERMINE_${lang}_ABI_COMPILED) + MESSAGE(STATUS "Detecting ${lang} compiler info - done") + FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Detecting ${lang} compiler info compiled with the following output:\n${OUTPUT}\n\n") + FILE(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 2 REGEX "INFO:[^[]*\\[") + FOREACH(info ${ABI_STRINGS}) + IF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*") + STRING(REGEX REPLACE ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*" "\\1" ABI_SIZEOF_DPTR "${info}") + ENDIF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*") + IF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*") + STRING(REGEX REPLACE ".*INFO:abi\\[([^]]*)\\].*" "\\1" ABI_NAME "${info}") + ENDIF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*") + ENDFOREACH(info) + + IF(ABI_SIZEOF_DPTR) + SET(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE) + SET(CMAKE_SIZEOF_VOID_P "${ABI_SIZEOF_DPTR}" PARENT_SCOPE) + ENDIF(ABI_SIZEOF_DPTR) + + IF(ABI_NAME) + SET(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE) + SET(CMAKE_INTERNAL_PLATFORM_ABI "${ABI_NAME}" PARENT_SCOPE) + ENDIF(ABI_NAME) + + ELSE(CMAKE_DETERMINE_${lang}_ABI_COMPILED) + MESSAGE(STATUS "Detecting ${lang} compiler info - failed") + FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Detecting ${lang} compiler info failed to compile with the following output:\n${OUTPUT}\n\n") + ENDIF(CMAKE_DETERMINE_${lang}_ABI_COMPILED) + ENDIF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED) +ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ABI) |