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GHS: Add Compiler ID detection

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-- Detect GHS compiler and version
   Detect ARCHITECTURE_ID for PPC / ARM / 86 targets
   Detect PLATFORM_ID for Integrity and Integrity178 platforms
   Using defines specified in the documents for the compilers: 201416 PPC / 201754 ARM / 201714 86
-- Fallback C/CXX compiler ID to GHS if not otherwise detected and using GHS MULTI generator
   Works around issue with some GHS compilers not setting __ghs__ compiler define
-- Tweak Compiler ID checking so major id of 002017 is not replaced with 217
-- Prefer try_compile() library targets when testing for working GHS compilers
-- Avoid CMake errors if reading past end of file for checking if file is PE executable
This commit is contained in:
Fred Baksik
2019-01-08 23:52:12 -05:00
parent 436cc5e991
commit 72e0c115b7
17 changed files with 176 additions and 42 deletions
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20
Modules/CMakeTestCompilerCommon.cmake
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@@ -5,3 +5,23 @@
function(PrintTestCompilerStatus LANG MSG)
message(STATUS "Check for working ${LANG} compiler: ${CMAKE_${LANG}_COMPILER}${MSG}")
endfunction()
# if required set the target type if not already explicitly set
macro(__TestCompiler_setTryCompileTargetType)
if(NOT CMAKE_TRY_COMPILE_TARGET_TYPE)
if("${CMAKE_GENERATOR}" MATCHES "Green Hills MULTI")
#prefer static libraries to avoid linking issues
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
set(__CMAKE_TEST_COMPILER_TARGET_TYPE_RESTORE 1)
endif()
endif()
endmacro()
# restore the original value
# -- not necessary if __TestCompiler_setTryCompileTargetType() was used in function scope
macro(__TestCompiler_restoreTryCompileTargetType)
if(__CMAKE_TEST_COMPILER_TARGET_TYPE_RESTORE)
unset(CMAKE_TRY_COMPILE_TARGET_TYPE)
unset(__CMAKE_TEST_COMPILER_TARGET_TYPE_RESTORE)
endif()
endmacro()