STYLE: remove unused CheckTypeSize.c.in
ENH: change test for endianess from TRY_RUN() to TRY_COMPILE() by testing the binary image of a 16bit integer array, tested on Linux x86, Intel Mac and Sun (big endian) Alex
This commit is contained in:
Alexander Neundorf
parent
c6092b7e5e
commit
578841cce5
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@ -1,34 +0,0 @@
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#cmakedefine CHECK_TYPE_SIZE_TYPE @CHECK_TYPE_SIZE_TYPE@
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#ifdef CHECK_TYPE_SIZE_TYPE
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@CHECK_TYPE_SIZE_PREINCLUDE@
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif /* HAVE_SYS_TYPES_H */
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#endif /* HAVE_STDINT_H */
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#endif /* HAVE_STDDEF_H */
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@CHECK_TYPE_SIZE_PREMAIN@
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#ifdef __CLASSIC_C__
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int main(){
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int ac;
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char*av[];
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#else
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int main(int ac, char*av[]){
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#endif
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if(ac > 1000){return *av[0];}
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return sizeof(CHECK_TYPE_SIZE_TYPE);
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}
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#else /* CHECK_TYPE_SIZE_TYPE */
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# error "CHECK_TYPE_SIZE_TYPE has to specify the type"
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#endif /* CHECK_TYPE_SIZE_TYPE */
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@ -78,7 +78,7 @@ MACRO(CHECK_TYPE_SIZE TYPE VARIABLE)
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ELSE(HAVE_${VARIABLE})
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MESSAGE(STATUS "Check size of ${TYPE} - failed")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining size of ${TYPE} failed with the following output:\n${OUTPUT}\nCheckTypeSize.c:\n${CHECK_TYPE_SIZE_FILE_CONTENT}\n\n")
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"Determining size of ${TYPE} failed with the following output:\n${OUTPUT}\nCheckTypeSizeC.c:\n${CHECK_TYPE_SIZE_FILE_CONTENT}\n\n")
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SET(${VARIABLE})
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ENDIF(HAVE_${VARIABLE})
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SET(${VARIABLE} "${${VARIABLE}}" CACHE INTERNAL "Result of CHECK_TYPE_SIZE" FORCE)
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@ -1,17 +0,0 @@
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#ifdef __CLASSIC_C__
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int main(){
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int ac;
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char*av[];
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#else
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int main(int ac, char*av[]){
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#endif
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/* Are we little or big endian? From Harbison&Steele. */
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union
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{
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long l;
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char c[sizeof (long)];
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} u;
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u.l = 1;
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if(ac > 1000){return *av[0];}
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return (u.c[sizeof (long) - 1] == 1)?1:0;
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}
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@ -5,37 +5,85 @@
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#
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MACRO(TEST_BIG_ENDIAN VARIABLE)
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SET(CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS 1)
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IF(NOT DEFINED ${VARIABLE})
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IF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
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TRY_RUN(${VARIABLE} HAVE_${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_ROOT}/Modules/TestBigEndian.c
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COMPILE_OUTPUT_VARIABLE OUTPUT)
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IF("${VARIABLE}" STREQUAL "FAILED_TO_RUN")
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MESSAGE(SEND_ERROR "TestBigEndian Failed to run with output: ${OUTPUT}")
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ENDIF("${VARIABLE}" STREQUAL "FAILED_TO_RUN")
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MESSAGE(STATUS "Check if the system is big endian")
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IF(HAVE_${VARIABLE})
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining the endianes of the system passed. The system is ")
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IF(${VARIABLE})
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"big endian")
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MESSAGE(STATUS "Check if the system is big endian - big endian")
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ELSE(${VARIABLE})
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"little endian")
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MESSAGE(STATUS "Check if the system is big endian - little endian")
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ENDIF(${VARIABLE})
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Test produced following output:\n${OUTPUT}\n\n")
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ELSE(HAVE_${VARIABLE})
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining the endianes of the system failed with the following output:\n${OUTPUT}\n\n")
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MESSAGE("Check if the system is big endian - failed")
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ENDIF(HAVE_${VARIABLE})
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MESSAGE(STATUS "Searching 16 bit integer")
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INCLUDE(CheckTypeSize)
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CHECK_TYPE_SIZE("unsigned short" CMAKE_SIZEOF_UNSIGNED_SHORT)
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IF(CMAKE_SIZEOF_UNSIGNED_SHORT EQUAL 2)
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MESSAGE(STATUS "Using unsigned short")
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SET(CMAKE_16BIT_TYPE "unsigned short")
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ELSE(CMAKE_SIZEOF_UNSIGNED_SHORT EQUAL 2)
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CHECK_TYPE_SIZE("unsigned int" CMAKE_SIZEOF_UNSIGNED_INT)
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IF(CMAKE_SIZEOF_UNSIGNED_INT)
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MESSAGE(STATUS "Using unsigned int")
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SET(CMAKE_16BIT_TYPE "unsigned int")
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ELSE(CMAKE_SIZEOF_UNSIGNED_INT)
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CHECK_TYPE_SIZE("unsigned long" CMAKE_SIZEOF_UNSIGNED_LONG)
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IF(CMAKE_SIZEOF_UNSIGNED_LONG)
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MESSAGE(STATUS "Using unsigned long")
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SET(CMAKE_16BIT_TYPE "unsigned long")
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ELSE(CMAKE_SIZEOF_UNSIGNED_LONG)
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MESSAGE(FATAL_ERROR "no suitable type found")
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ENDIF(CMAKE_SIZEOF_UNSIGNED_LONG)
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ENDIF(CMAKE_SIZEOF_UNSIGNED_INT)
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ENDIF(CMAKE_SIZEOF_UNSIGNED_SHORT EQUAL 2)
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CONFIGURE_FILE("${CMAKE_ROOT}/Modules/TestEndianess.c.in"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/TestEndianess.c"
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IMMEDIATE @ONLY)
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FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/TestEndianess.c"
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TEST_ENDIANESS_FILE_CONTENT)
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TRY_COMPILE(HAVE_${VARIABLE}
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"${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/TestEndianess.c"
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OUTPUT_VARIABLE OUTPUT
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COPY_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestEndianess.bin" )
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IF(HAVE_${VARIABLE})
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FILE(STRINGS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestEndianess.bin"
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CMAKE_TEST_ENDIANESS_STRINGS_LE LIMIT_COUNT 1 REGEX "THIS IS LITTLE ENDIAN")
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FILE(STRINGS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestEndianess.bin"
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CMAKE_TEST_ENDIANESS_STRINGS_BE LIMIT_COUNT 1 REGEX "THIS IS BIG ENDIAN")
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IF(CMAKE_TEST_ENDIANESS_STRINGS_LE)
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SET(${VARIABLE} 0 CACHE INTERNAL "Result of TEST_BIG_ENDIAN" FORCE)
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MESSAGE(STATUS "Check if the system is big endian - little endian")
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ENDIF(CMAKE_TEST_ENDIANESS_STRINGS_LE)
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IF(CMAKE_TEST_ENDIANESS_STRINGS_BE)
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SET(${VARIABLE} 1 CACHE INTERNAL "Result of TEST_BIG_ENDIAN" FORCE)
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MESSAGE(STATUS "Check if the system is big endian - big endian")
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ENDIF(CMAKE_TEST_ENDIANESS_STRINGS_BE)
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IF(CMAKE_TEST_ENDIANESS_STRINGS_BE AND CMAKE_TEST_ENDIANESS_STRINGS_LE)
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MESSAGE(SEND_ERROR "TEST_BIG_ENDIAN found different results, consider setting CMAKE_OSX_ARCHITECTURES or CMAKE_TRY_COMPILE_OSX_ARCHITECTURES to one or no architecture !")
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ENDIF(CMAKE_TEST_ENDIANESS_STRINGS_BE AND CMAKE_TEST_ENDIANESS_STRINGS_LE)
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IF(NOT CMAKE_TEST_ENDIANESS_STRINGS_BE AND NOT CMAKE_TEST_ENDIANESS_STRINGS_LE)
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MESSAGE(SEND_ERROR "TEST_BIG_ENDIAN found no !")
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ENDIF(NOT CMAKE_TEST_ENDIANESS_STRINGS_BE AND NOT CMAKE_TEST_ENDIANESS_STRINGS_LE)
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the system is big endian passed with the following output:\n${OUTPUT}\nTestEndianess.c:\n${TEST_ENDIANESS_FILE_CONTENT}\n\n")
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ELSE(HAVE_${VARIABLE})
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MESSAGE(STATUS "Check if the system is big endian - failed")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the system is big endian failed with the following output:\n${OUTPUT}\nTestEndianess.c:\n${TEST_ENDIANESS_FILE_CONTENT}\n\n")
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SET(${VARIABLE})
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ENDIF(HAVE_${VARIABLE})
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ENDIF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
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ENDIF(NOT DEFINED ${VARIABLE})
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SET(CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS)
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ENDMACRO(TEST_BIG_ENDIAN)
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@ -0,0 +1,20 @@
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/* A 16 bit integer is required. */
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typedef @CMAKE_16BIT_TYPE@ cmakeint16;
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/* On a little endian machine, these 16bit ints will give "THIS IS LITTLE ENDIAN."
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On a big endian machine the characters will be exchanged pairwise. */
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const cmakeint16 info_little[] = {0x4854, 0x5349, 0x4920, 0x2053, 0x494c, 0x5454, 0x454c, 0x4520, 0x444e, 0x4149, 0x2e4e, 0x0000};
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/* on a big endian machine, these 16bit ints will give "THIS IS BIG ENDIAN."
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On a little endian machine the characters will be exchanged pairwise. */
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const cmakeint16 info_big[] = {0x5448, 0x4953, 0x2049, 0x5320, 0x4249, 0x4720, 0x454e, 0x4449, 0x414e, 0x2e2e, 0x0000};
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#ifdef __CLASSIC_C__
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int main(){
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int ac;
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char*av[];
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#else
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int main(int ac, char*av[]){
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#endif
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return (&info_little[0] != &info_big[0]);
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}
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