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CMake/Modules/CMakeDetermineASMCompiler.cmake
Brad King 332771c942 CMakeDetermine*Compiler: Remove temporary cache entry 
When the user or toolchain file sets CMAKE_<LANG>_COMPILER to a name
without a path we use find_program with CMAKE_<LANG>_COMPILER_WITH_PATH
to search for the tool.  Remove the temporary cache entry afterward to
avoid exposing it to projects.  It is not set by other logic paths so no
one should be using it.
2013-10-24 11:34:07 -04:00

175 lines
7.2 KiB
CMake
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#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# determine the compiler to use for ASM programs
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER)
# prefer the environment variable ASM
if($ENV{ASM${ASM_DIALECT}} MATCHES ".+")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_INIT "$ENV{ASM${ASM_DIALECT}}")
endif()
# finally list compilers to try
if("ASM${ASM_DIALECT}" STREQUAL "ASM") # the generic assembler support
if(NOT CMAKE_ASM_COMPILER_INIT)
if(CMAKE_C_COMPILER)
set(CMAKE_ASM_COMPILER "${CMAKE_C_COMPILER}" CACHE FILEPATH "The ASM compiler")
set(CMAKE_ASM_COMPILER_ID "${CMAKE_C_COMPILER_ID}")
elseif(CMAKE_CXX_COMPILER)
set(CMAKE_ASM_COMPILER "${CMAKE_CXX_COMPILER}" CACHE FILEPATH "The ASM compiler")
set(CMAKE_ASM_COMPILER_ID "${CMAKE_CXX_COMPILER_ID}")
else()
# List all default C and CXX compilers
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_LIST
${_CMAKE_TOOLCHAIN_PREFIX}cc ${_CMAKE_TOOLCHAIN_PREFIX}gcc cl bcc xlc
CC ${_CMAKE_TOOLCHAIN_PREFIX}c++ ${_CMAKE_TOOLCHAIN_PREFIX}g++ aCC cl bcc xlC)
endif()
endif()
else() # some specific assembler "dialect"
if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_INIT AND NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_LIST)
message(FATAL_ERROR "CMAKE_ASM${ASM_DIALECT}_COMPILER_INIT or CMAKE_ASM${ASM_DIALECT}_COMPILER_LIST must be preset !")
endif()
endif()
# Find the compiler.
_cmake_find_compiler(ASM${ASM_DIALECT})
else()
# we only get here if CMAKE_ASM${ASM_DIALECT}_COMPILER was specified using -D or a pre-made CMakeCache.txt
# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
#
# if a compiler was specified by the user but without path,
# now try to find it with the full path
# if it is found, force it into the cache,
# if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
get_filename_component(_CMAKE_USER_ASM${ASM_DIALECT}_COMPILER_PATH "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" PATH)
if(NOT _CMAKE_USER_ASM${ASM_DIALECT}_COMPILER_PATH)
find_program(CMAKE_ASM${ASM_DIALECT}_COMPILER_WITH_PATH NAMES ${CMAKE_ASM${ASM_DIALECT}_COMPILER})
if(CMAKE_ASM${ASM_DIALECT}_COMPILER_WITH_PATH)
set(CMAKE_ASM${ASM_DIALECT}_COMPILER ${CMAKE_ASM${ASM_DIALECT}_COMPILER_WITH_PATH} CACHE FILEPATH "Assembler" FORCE)
endif()
unset(CMAKE_ASM${ASM_DIALECT}_COMPILER_WITH_PATH CACHE)
endif()
endif()
mark_as_advanced(CMAKE_ASM${ASM_DIALECT}_COMPILER)
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" PATH)
endif ()
if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
# Table of per-vendor compiler id flags with expected output.
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS GNU )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_GNU "--version")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_GNU "(GNU assembler)|(GCC)|(Free Software Foundation)")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS HP )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_HP "-V")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_HP "HP C")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS Intel )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_Intel "--version")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_Intel "(ICC)")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS SunPro )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_SunPro "-V")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_SunPro "Sun C")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS XL )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_XL "-qversion")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_XL "XL C")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS MSVC )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_MSVC "/?")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_MSVC "Microsoft")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS TI )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_TI "-h")
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_TI "Texas Instruments")
list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS GNU IAR)
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_IAR )
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_IAR "IAR Assembler")
include(CMakeDetermineCompilerId)
CMAKE_DETERMINE_COMPILER_ID_VENDOR(ASM${ASM_DIALECT})
endif()
if(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
message(STATUS "The ASM${ASM_DIALECT} compiler identification is ${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}")
else()
message(STATUS "The ASM${ASM_DIALECT} compiler identification is unknown")
endif()
# If we have a gas/as cross compiler, they have usually some prefix, like
# e.g. powerpc-linux-gas, arm-elf-gas or i586-mingw32msvc-gas , optionally
# with a 3-component version number at the end
# The other tools of the toolchain usually have the same prefix
# NAME_WE cannot be used since then this test will fail for names lile
# "arm-unknown-nto-qnx6.3.0-gas.exe", where BASENAME would be
# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
if (NOT _CMAKE_TOOLCHAIN_PREFIX)
get_filename_component(COMPILER_BASENAME "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" NAME)
if (COMPILER_BASENAME MATCHES "^(.+-)g?as(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
endif ()
endif ()
# Now try the C compiler regexp:
if (NOT _CMAKE_TOOLCHAIN_PREFIX)
if (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
endif ()
endif ()
# Finally try the CXX compiler regexp:
if (NOT _CMAKE_TOOLCHAIN_PREFIX)
if (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
endif ()
endif ()
include(CMakeFindBinUtils)
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ENV_VAR "ASM${ASM_DIALECT}")
if(CMAKE_ASM${ASM_DIALECT}_COMPILER)
message(STATUS "Found assembler: ${CMAKE_ASM${ASM_DIALECT}_COMPILER}")
else()
message(STATUS "Didn't find assembler")
endif()
set(_CMAKE_ASM_COMPILER "${CMAKE_ASM${ASM_DIALECT}_COMPILER}")
set(_CMAKE_ASM_COMPILER_ID "${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}")
set(_CMAKE_ASM_COMPILER_ARG1 "${CMAKE_ASM${ASM_DIALECT}_COMPILER_ARG1}")
set(_CMAKE_ASM_COMPILER_ENV_VAR "${CMAKE_ASM${ASM_DIALECT}_COMPILER_ENV_VAR}")
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeASMCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeASM${ASM_DIALECT}Compiler.cmake IMMEDIATE @ONLY)
set(_CMAKE_ASM_COMPILER)
set(_CMAKE_ASM_COMPILER_ARG1)
set(_CMAKE_ASM_COMPILER_ENV_VAR)
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