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cmake: detect CPU architecture in 1 compilation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| function(SDL_DetectTargetCPUArchitectures DETECTED_ARCHS) | ||
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| set(DETECTABLE_ARCHS ARM32 ARM64 EMSCRIPTEN LOONGARCH64 POWERPC32 POWERPC64 X86 X64) | ||
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| if(APPLE AND CMAKE_OSX_ARCHITECTURES) | ||
| foreach(arch IN LISTS DETECTABLE_ARCHS) | ||
| set(SDL_CPU_${arch} "0") | ||
| endforeach() | ||
| set(detected_archs) | ||
| foreach(osx_arch IN LISTS CMAKE_OSX_ARCHITECTURES) | ||
| if(osx_arch STREQUAL "x86_64") | ||
| set(SDL_CPU_X64 "1") | ||
| list(APPEND detected_archs "X64") | ||
| elseif(osx_arch STREQUAL "arm64") | ||
| set(SDL_CPU_ARM64 "1") | ||
| list(APPEND detected_archs "ARM64") | ||
| endif() | ||
| endforeach() | ||
| set("${DETECTED_ARCHS}" "${detected_archs}" PARENT_SCOPE) | ||
| return() | ||
| endif() | ||
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| set(detected_archs) | ||
| foreach(arch IN LISTS DETECTABLE_ARCHS) | ||
| if(SDL_CPU_${arch}) | ||
| list(APPEND detected_archs "${arch}") | ||
| endif() | ||
| endforeach() | ||
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| if(detected_archs) | ||
| set("${DETECTED_ARCHS}" "${detected_archs}" PARENT_SCOPE) | ||
| return() | ||
| endif() | ||
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| set(src_arch_detect [=====[ | ||
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| #if defined(__arm__) || defined(_M_ARM) | ||
| #define ARCH_ARM32 "1" | ||
| #else | ||
| #define ARCH_ARM32 "0" | ||
| #endif | ||
| const char *arch_arm32 = "INFO<ARM32=" ARCH_ARM32 ">"; | ||
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| #if defined(__aarch64__) || defined(_M_ARM64) | ||
| #define ARCH_ARM64 "1" | ||
| #else | ||
| #define ARCH_ARM64 "0" | ||
| #endif | ||
| const char *arch_arm64 = "INFO<ARM64=" ARCH_ARM64 ">"; | ||
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| #if defined(__EMSCRIPTEN__) | ||
| #define ARCH_EMSCRIPTEN "1" | ||
| #else | ||
| #define ARCH_EMSCRIPTEN "0" | ||
| #endif | ||
| const char *arch_emscripten = "INFO<EMSCRIPTEN=" ARCH_EMSCRIPTEN ">"; | ||
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| #if defined(__loongarch64) | ||
| #define ARCH_LOONGARCH64 "1" | ||
| #else | ||
| #define ARCH_LOONGARCH64 "0" | ||
| #endif | ||
| const char *arch_loongarch64 = "INFO<LOONGARCH64=" ARCH_LOONGARCH64 ">"; | ||
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| #if (defined(__PPC__) || defined(__powerpc__)) && !defined(__powerpc64__) | ||
| #define ARCH_POWERPC32 "1" | ||
| #else | ||
| #define ARCH_POWERPC32 "0" | ||
| #endif | ||
| const char *arch_powerpc32 = "INFO<ARCH_POWERPC32=" ARCH_POWERPC32 ">"; | ||
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| #if defined(__PPC64__) || defined(__powerpc64__) | ||
| #define ARCH_POWERPC64 "1" | ||
| #else | ||
| #define ARCH_POWERPC64 "0" | ||
| #endif | ||
| const char *arch_powerpc64 = "INFO<POWERPC64=" ARCH_POWERPC64 ">"; | ||
|
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| #if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86) | ||
| #define ARCH_X86 "1" | ||
| #else | ||
| #define ARCH_X86 "0" | ||
| #endif | ||
| const char *arch_x86 = "INFO<X86=" ARCH_X86 ">"; | ||
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| #if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64) | ||
| #define ARCH_X64 "1" | ||
| #else | ||
| #define ARCH_X64 "0" | ||
| #endif | ||
| const char *arch_x64 = "INFO<X64=" ARCH_X64 ">"; | ||
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| int main(int argc, char *argv[]) { | ||
| (void) argv; | ||
| int result = argc; | ||
| result += arch_arm32[argc]; | ||
| result += arch_arm64[argc]; | ||
| result += arch_emscripten[argc]; | ||
| result += arch_loongarch64[argc]; | ||
| result += arch_powerpc32[argc]; | ||
| result += arch_powerpc64[argc]; | ||
| result += arch_x86[argc]; | ||
| result += arch_x64[argc]; | ||
| return result; | ||
| } | ||
| ]=====]) | ||
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| set(path_src_arch_detect "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/CMakeTmp/SDL_detect_arch.c") | ||
| file(WRITE "${path_src_arch_detect}" "${src_arch_detect}") | ||
| set(path_dir_arch_detect "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/CMakeTmp/SDL_detect_arch") | ||
| set(path_bin_arch_detect "${path_dir_arch_detect}/bin") | ||
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| set(msg "Detecting Target CPU Architecture") | ||
| message(STATUS "${msg}") | ||
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| try_compile(COMPILED_RES | ||
| "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/CMakeTmp/SDL_detect_arch" | ||
| SOURCES "${path_src_arch_detect}" | ||
| COPY_FILE "${path_bin_arch_detect}" | ||
| ) | ||
| if(NOT COMPILED_RES) | ||
| message(STATUS "${msg} - <ERROR>") | ||
| message(WARNING "Failed to compile source detecting the target CPU architecture") | ||
| endif() | ||
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| set(re "INFO<([A-Z0-9]+)=([01])>") | ||
| file(STRINGS "${path_bin_arch_detect}" infos REGEX "${re}") | ||
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| set(detected_archs) | ||
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| foreach(info_arch_01 IN LISTS infos) | ||
| string(REGEX MATCH "${re}" A "${info_arch_01}") | ||
| if(NOT "${CMAKE_MATCH_1}" IN_LIST DETECTABLE_ARCHS) | ||
| message(WARNING "Unknown architecture: \"${CMAKE_MATCH_1}\"") | ||
| continue() | ||
| endif() | ||
| set(arch "${CMAKE_MATCH_1}") | ||
| set(arch_01 "${CMAKE_MATCH_2}") | ||
| if(arch_01) | ||
| list(APPEND detected_archs "${arch}") | ||
| endif() | ||
| set("SDL_CPU_${arch}" "${arch_01}" CACHE BOOL "Detected architecture ${arch}") | ||
| endforeach() | ||
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| message(STATUS "${msg} - ${detected_archs}") | ||
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| set("${DETECTED_ARCHS}" "${detected_archs}" PARENT_SCOPE) | ||
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| endfunction() |
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