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Updated c_check OS/compiler/bits detection.

This commit is contained in:
Hank Anderson 2015-01-28 15:47:47 -06:00
parent 9a508abdc7
commit c5f5c7a076
2 changed files with 28 additions and 11 deletions
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37
cmake/c_check.cmake
View File

@ -7,30 +7,47 @@
## This is triggered by prebuild.cmake and runs before any of the code is built.
## Creates config.h and Makefile.conf.
# N.B. c_check is not cross-platform, so instead try to use CMake variables. Alternatively, could use try_compile to get some of this info the same way c_check does.
# N.B. c_check (and ctest.c) is not cross-platform, so instead try to use CMake variables.
# run c_check (creates the TARGET files)
# message(STATUS "Running c_check...")
# execute_process(COMMAND perl c_check ${TARGET_MAKE} ${TARGET_CONF} ${CMAKE_CXX_COMPILER}
# WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
# TODO: is ${BINARY} sufficient for the __32BIT__ define?
# TODO: CMAKE_SYSTEM_PROCESSOR is not set by CMake, need to set it manually when doing a cross-compile
# TODO: CMAKE_CXX_COMPILER_ID and CMAKE_SYSTEM_NAME are probably not the same strings as OpenBLAS is expecting
# TODO: detect NEED_FU
set(NEED_FU 1)
# Convert CMake vars into the format that OpenBLAS expects
string(TOUPPER ${CMAKE_SYSTEM_NAME} HOST_OS)
if (${HOST_OS} STREQUAL "WINDOWS")
set(HOST_OS WINNT)
endif ()
# added by hpa - check size of void ptr to detect 64-bit compile
if (NOT DEFINED BINARY)
set(BINARY 32)
if (CMAKE_SIZEOF_VOID_P EQUAL 8)
set(BINARY 64)
endif ()
endif ()
# CMake docs define these:
# CMAKE_SYSTEM_PROCESSOR - The name of the CPU CMake is building for.
# CMAKE_HOST_SYSTEM_PROCESSOR - The name of the CPU CMake is running on.
set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
if (${HOST_ARCH} STREQUAL "AMD64")
set(HOST_ARCH "X86_64")
endif ()
# If you are using a 32-bit compiler on a 64-bit system CMAKE_SYSTEM_PROCESSOR will be wrong
if (${HOST_ARCH} STREQUAL "X86_64" AND BINARY EQUAL 32)
set(HOST_ARCH X86)
endif ()
set(COMPILER_ID ${CMAKE_CXX_COMPILER_ID})
if (${COMPILER_ID} STREQUAL "GNU")
set(COMPILER_ID "GCC")
endif ()
file(WRITE ${TARGET_CONF}
"#define OS_${HOST_OS}\t1\n"
"#define ARCH_${HOST_ARCH}\t1\n"
"#define C_${CMAKE_CXX_COMPILER_ID}\t1\n"
"#define C_${COMPILER_ID}\t1\n"
"#define __${BINARY}BIT__\t1\n"
"#define FUNDERSCORE\t${NEED_FU}\n")

2
cmake/prebuild.cmake
View File

@ -78,7 +78,7 @@ try_compile(GETARCH_RESULT ${GETARCH_DIR}
message(STATUS "GETARCH RESULT: ${GETARCH_RESULT}")
message(STATUS "GETARCH LOG: ${GETARCH_LOG}")
# TODO: need to append output of getarch binary to TARGET_CONF, not sure if I can get at it after using try_compile - may need to create CMakeLists.txt on the fly and build/execute
# TODO: need to append output of getarch binary to TARGET_CONF, use COPY_FILE param (look at try_compile docs) to copy the resulting binary somewhere then run it
#add_executable(getarch getarch.c cpuid.S ${CPUIDEMU}
# WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})