95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
#ifndef SN_TARGET
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#define SN_TARGET
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#include "sn_internal.h"
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#include <stdint.h>
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#define SN_OS_WINDOWS 0
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#define SN_OS_LINUX 1
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#define SN_OS_MACOS 2
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#define SN_OS_IOS 3
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#define SN_OS_ANDROID 4
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#define SN_OS_UNKNOWN 5
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#define SN_ARCH_X86_64 0
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#define SN_ARCH_ARM64 1
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#define SN_ARCH_RISCV64 2
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#define SN_ARCH_PPC64le 3
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#if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__) || defined(__amd64__)
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#define SN_CURRENT_ARCH SN_ARCH_X86_64
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#elif defined(_M_ARM64) || defined(__aarch64__)
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#define SN_CURRENT_ARCH SN_ARCH_ARM64
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#elif defined(_M_ARM) || defined(__arm__)
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#define SN_CURRENT_ARCH SN_ARCH_ARM32
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#elif defined(_M_IX86) || defined(__i386__)
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#define SN_CURRENT_ARCH SN_ARCH_X86_32
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#elif defined(__powerpc64__) && defined(__LITTLE_ENDIAN__)
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#define SN_CURRENT_ARCH SN_ARCH_PPC64LE
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#elif defined(__riscv) && (__riscv_xlen == 64)
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#define SN_CURRENT_ARCH SN_ARCH_RISCV64
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#else
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#error "SN: Unsupported target architecture"
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#endif
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/*
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* Target selection policy:
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* - Default (no SN_EXTERN_TARGET): fixed Windows + x86_64.
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* - External (SN_EXTERN_TARGET): build system must provide SN_OS and SN_ARCH.
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*/
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#ifndef SN_EXTERN_TARGET
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#define SN_OS_TARGET SN_OS_WINDOWS
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#define SN_ARCH_TARGET SN_ARCH_X86_64
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#else
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#ifndef SN_OS_TARGET
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#error "SN_EXTERN_TARGET is defined but SN_OS is not provided."
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#endif
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#ifndef SN_ARCH_TARGET
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#error "SN_EXTERN_TARGET is defined but SN_ARCH is not provided."
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#endif
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/* Validate externally supplied values are within known enum constants. */
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#if (SN_OS_TARGET != SN_OS_WINDOWS) && (SN_OS_TARGET != SN_OS_LINUX) && \
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(SN_OS_TARGET != SN_OS_MACOS) && (SN_OS_TARGET != SN_OS_IOS) && \
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(SN_OS_TARGET != SN_OS_ANDROID) && (SN_OS_TARGET != SN_OS_UNKNOWN)
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#error "SN_OS has an invalid value. Use SN_OS_<...> enum constants."
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#endif
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#if (SN_ARCH_TARGET != SN_ARCH_X86_64) && (SN_ARCH_TARGET != SN_ARCH_ARM64) && \
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(SN_ARCH_TARGET != SN_ARCH_RISCV64) && (SN_ARCH_TARGET != SN_ARCH_PPC64le)
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#error "SN_ARCH has an invalid value. Use SN_ARCH_<...> enum constants."
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#endif
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#endif
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#define SN_IS_OS(os) ((SN_OS_TARGET) == (os))
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#define SN_IS_ARCH(arch) ((SN_ARCH_TARGET) == (arch))
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/*
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* Per-function ISA selection is required for runtime-dispatched kernels that
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* mix multiple x86 feature levels in one build target.
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*/
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#if defined(__clang__) && ((SN_ARCH_TARGET) == SN_ARCH_X86_64)
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#define SN_CLANG_TARGET_ATTR(options) __attribute__((target(options)))
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#else
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#define SN_CLANG_TARGET_ATTR(options)
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#endif
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typedef union SIMDID {
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uint64_t mask;
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char make_byte[8];
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} SIMDID;
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#endif // SN_TARGET
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