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cpython/Misc/platform_triplet.c
Russell Keith-Magee ab99438900
gh-114099: Modify preprocessor symbol usage to support older macOS SDKs (GH-118073) 
Co-authored-by: Joshua Root jmr@macports.org
2024-04-19 14:56:33 -04:00

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/* Detect platform triplet from builtin defines
* cc -E Misc/platform_triplet.c | grep '^PLATFORM_TRIPLET=' | tr -d ' '
*/
#undef bfin
#undef cris
#undef fr30
#undef linux
#undef hppa
#undef hpux
#undef i386
#undef mips
#undef powerpc
#undef sparc
#undef unix
#if defined(__ANDROID__)
# if defined(__x86_64__)
PLATFORM_TRIPLET=x86_64-linux-android
# elif defined(__i386__)
PLATFORM_TRIPLET=i686-linux-android
# elif defined(__aarch64__)
PLATFORM_TRIPLET=aarch64-linux-android
# elif defined(__arm__)
PLATFORM_TRIPLET=arm-linux-androideabi
# else
# error unknown Android platform
# endif
#elif defined(__linux__)
/*
* BEGIN of Linux block
*/
// Detect libc (based on config.guess)
# include <features.h>
# if defined(__UCLIBC__)
# error uclibc not supported
# elif defined(__dietlibc__)
# error dietlibc not supported
# elif defined(__GLIBC__)
# define LIBC gnu
# define LIBC_X32 gnux32
# if defined(__ARM_PCS_VFP)
# define LIBC_ARM gnueabihf
# else
# define LIBC_ARM gnueabi
# endif
# if defined(__loongarch__)
# if defined(__loongarch_soft_float)
# define LIBC_LA gnusf
# elif defined(__loongarch_single_float)
# define LIBC_LA gnuf32
# elif defined(__loongarch_double_float)
# define LIBC_LA gnu
# else
# error unknown loongarch floating-point base abi
# endif
# endif
# if defined(_MIPS_SIM)
# if defined(__mips_hard_float)
# if _MIPS_SIM == _ABIO32
# define LIBC_MIPS gnu
# elif _MIPS_SIM == _ABIN32
# define LIBC_MIPS gnuabin32
# elif _MIPS_SIM == _ABI64
# define LIBC_MIPS gnuabi64
# else
# error unknown mips sim value
# endif
# else
# if _MIPS_SIM == _ABIO32
# define LIBC_MIPS gnusf
# elif _MIPS_SIM == _ABIN32
# define LIBC_MIPS gnuabin32sf
# elif _MIPS_SIM == _ABI64
# define LIBC_MIPS gnuabi64sf
# else
# error unknown mips sim value
# endif
# endif
# endif
# if defined(__SPE__)
# define LIBC_PPC gnuspe
# else
# define LIBC_PPC gnu
# endif
# else
// Heuristic to detect musl libc
# include <stdarg.h>
# ifdef __DEFINED_va_list
# define LIBC musl
# define LIBC_X32 muslx32
# if defined(__ARM_PCS_VFP)
# define LIBC_ARM musleabihf
# else
# define LIBC_ARM musleabi
# endif
# if defined(__loongarch__)
# if defined(__loongarch_soft_float)
# define LIBC_LA muslsf
# elif defined(__loongarch_single_float)
# define LIBC_LA muslf32
# elif defined(__loongarch_double_float)
# define LIBC_LA musl
# else
# error unknown loongarch floating-point base abi
# endif
# endif
# if defined(_MIPS_SIM)
# if defined(__mips_hard_float)
# if _MIPS_SIM == _ABIO32
# define LIBC_MIPS musl
# elif _MIPS_SIM == _ABIN32
# define LIBC_MIPS musln32
# elif _MIPS_SIM == _ABI64
# define LIBC_MIPS musl
# else
# error unknown mips sim value
# endif
# else
# if _MIPS_SIM == _ABIO32
# define LIBC_MIPS muslsf
# elif _MIPS_SIM == _ABIN32
# define LIBC_MIPS musln32sf
# elif _MIPS_SIM == _ABI64
# define LIBC_MIPS muslsf
# else
# error unknown mips sim value
# endif
# endif
# endif
# if defined(_SOFT_FLOAT) || defined(__NO_FPRS__)
# define LIBC_PPC muslsf
# else
# define LIBC_PPC musl
# endif
# else
# error unknown libc
# endif
# endif
# if defined(__x86_64__) && defined(__LP64__)
PLATFORM_TRIPLET=x86_64-linux-LIBC
# elif defined(__x86_64__) && defined(__ILP32__)
PLATFORM_TRIPLET=x86_64-linux-LIBC_X32
# elif defined(__i386__)
PLATFORM_TRIPLET=i386-linux-LIBC
# elif defined(__aarch64__) && defined(__AARCH64EL__)
# if defined(__ILP32__)
PLATFORM_TRIPLET=aarch64_ilp32-linux-LIBC
# else
PLATFORM_TRIPLET=aarch64-linux-LIBC
# endif
# elif defined(__aarch64__) && defined(__AARCH64EB__)
# if defined(__ILP32__)
PLATFORM_TRIPLET=aarch64_be_ilp32-linux-LIBC
# else
PLATFORM_TRIPLET=aarch64_be-linux-LIBC
# endif
# elif defined(__alpha__)
PLATFORM_TRIPLET=alpha-linux-LIBC
# elif defined(__ARM_EABI__)
# if defined(__ARMEL__)
PLATFORM_TRIPLET=arm-linux-LIBC_ARM
# else
PLATFORM_TRIPLET=armeb-linux-LIBC_ARM
# endif
# elif defined(__hppa__)
PLATFORM_TRIPLET=hppa-linux-LIBC
# elif defined(__ia64__)
PLATFORM_TRIPLET=ia64-linux-LIBC
# elif defined(__loongarch__) && defined(__loongarch_lp64)
PLATFORM_TRIPLET=loongarch64-linux-LIBC_LA
# elif defined(__m68k__) && !defined(__mcoldfire__)
PLATFORM_TRIPLET=m68k-linux-LIBC
# elif defined(__mips__)
# if defined(__mips_isa_rev) && (__mips_isa_rev >=6)
# if defined(_MIPSEL) && defined(__mips64)
PLATFORM_TRIPLET=mipsisa64r6el-linux-LIBC_MIPS
# elif defined(_MIPSEL)
PLATFORM_TRIPLET=mipsisa32r6el-linux-LIBC_MIPS
# elif defined(__mips64)
PLATFORM_TRIPLET=mipsisa64r6-linux-LIBC_MIPS
# else
PLATFORM_TRIPLET=mipsisa32r6-linux-LIBC_MIPS
# endif
# else
# if defined(_MIPSEL) && defined(__mips64)
PLATFORM_TRIPLET=mips64el-linux-LIBC_MIPS
# elif defined(_MIPSEL)
PLATFORM_TRIPLET=mipsel-linux-LIBC_MIPS
# elif defined(__mips64)
PLATFORM_TRIPLET=mips64-linux-LIBC_MIPS
# else
PLATFORM_TRIPLET=mips-linux-LIBC_MIPS
# endif
# endif
# elif defined(__or1k__)
PLATFORM_TRIPLET=or1k-linux-LIBC
# elif defined(__powerpc64__)
# if defined(__LITTLE_ENDIAN__)
PLATFORM_TRIPLET=powerpc64le-linux-LIBC
# else
PLATFORM_TRIPLET=powerpc64-linux-LIBC
# endif
# elif defined(__powerpc__)
PLATFORM_TRIPLET=powerpc-linux-LIBC_PPC
# elif defined(__s390x__)
PLATFORM_TRIPLET=s390x-linux-LIBC
# elif defined(__s390__)
PLATFORM_TRIPLET=s390-linux-LIBC
# elif defined(__sh__) && defined(__LITTLE_ENDIAN__)
PLATFORM_TRIPLET=sh4-linux-LIBC
# elif defined(__sparc__) && defined(__arch64__)
PLATFORM_TRIPLET=sparc64-linux-LIBC
# elif defined(__sparc__)
PLATFORM_TRIPLET=sparc-linux-LIBC
# elif defined(__riscv)
# if __riscv_xlen == 32
PLATFORM_TRIPLET=riscv32-linux-LIBC
# elif __riscv_xlen == 64
PLATFORM_TRIPLET=riscv64-linux-LIBC
# else
# error unknown platform triplet
# endif
# else
# error unknown platform triplet
# endif
/*
* END of Linux block
*/
#elif defined(__FreeBSD_kernel__)
# if defined(__LP64__)
PLATFORM_TRIPLET=x86_64-kfreebsd-gnu
# elif defined(__i386__)
PLATFORM_TRIPLET=i386-kfreebsd-gnu
# else
# error unknown platform triplet
# endif
#elif defined(__gnu_hurd__)
# if defined(__x86_64__) && defined(__LP64__)
PLATFORM_TRIPLET=x86_64-gnu
# elif defined(__i386__)
PLATFORM_TRIPLET=i386-gnu
# else
# error unknown platform triplet
# endif
#elif defined(__APPLE__)
# include "TargetConditionals.h"
// Older macOS SDKs do not define TARGET_OS_*
# if defined(TARGET_OS_IOS) && TARGET_OS_IOS
# if defined(TARGET_OS_SIMULATOR) && TARGET_OS_SIMULATOR
# if __x86_64__
PLATFORM_TRIPLET=x86_64-iphonesimulator
# else
PLATFORM_TRIPLET=arm64-iphonesimulator
# endif
# else
PLATFORM_TRIPLET=arm64-iphoneos
# endif
// Older macOS SDKs do not define TARGET_OS_OSX
# elif !defined(TARGET_OS_OSX) || TARGET_OS_OSX
PLATFORM_TRIPLET=darwin
# else
# error unknown Apple platform
# endif
#elif defined(__VXWORKS__)
PLATFORM_TRIPLET=vxworks
#elif defined(__wasm32__)
# if defined(__EMSCRIPTEN__)
PLATFORM_TRIPLET=wasm32-emscripten
# elif defined(__wasi__)
# if defined(_REENTRANT)
PLATFORM_TRIPLET=wasm32-wasi-threads
# else
PLATFORM_TRIPLET=wasm32-wasi
# endif
# else
# error unknown wasm32 platform
# endif
#elif defined(__wasm64__)
# if defined(__EMSCRIPTEN__)
PLATFORM_TRIPLET=wasm64-emscripten
# elif defined(__wasi__)
PLATFORM_TRIPLET=wasm64-wasi
# else
# error unknown wasm64 platform
# endif
#else
# error unknown platform triplet
#endif
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