126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
#pragma once
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/*
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* Compiler-specific attributes/macros go here. This is the default placeholder
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* that should work for MSVC/GCC/clang.
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*/
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#ifdef UACPI_OVERRIDE_COMPILER
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#include "uacpi_compiler.h"
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#else
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#define UACPI_ALIGN(x) __declspec(align(x))
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#if defined(__WATCOMC__)
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#define UACPI_STATIC_ASSERT(expr, msg)
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#elif defined(__cplusplus)
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#define UACPI_STATIC_ASSERT static_assert
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#else
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#define UACPI_STATIC_ASSERT _Static_assert
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#endif
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#ifdef _MSC_VER
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#include <intrin.h>
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#define UACPI_ALWAYS_INLINE __forceinline
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#define UACPI_PACKED(decl) \
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__pragma(pack(push, 1)) \
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decl; \
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__pragma(pack(pop))
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#elif defined(__WATCOMC__)
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#define UACPI_ALWAYS_INLINE inline
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#define UACPI_PACKED(decl) _Packed decl;
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#else
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#define UACPI_ALWAYS_INLINE inline __attribute__((always_inline))
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#define UACPI_PACKED(decl) decl __attribute__((packed));
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#endif
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#if defined(__GNUC__) || defined(__clang__)
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#define uacpi_unlikely(expr) __builtin_expect(!!(expr), 0)
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#define uacpi_likely(expr) __builtin_expect(!!(expr), 1)
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#ifdef __has_attribute
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#if __has_attribute(__fallthrough__)
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#define UACPI_FALLTHROUGH __attribute__((__fallthrough__))
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#endif
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#endif
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#define UACPI_MAYBE_UNUSED __attribute__ ((unused))
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_BEGIN \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wunused-parameter\"")
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_END \
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_Pragma("GCC diagnostic pop")
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#ifdef __clang__
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#define UACPI_PRINTF_DECL(fmt_idx, args_idx) \
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__attribute__((format(printf, fmt_idx, args_idx)))
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#else
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#define UACPI_PRINTF_DECL(fmt_idx, args_idx) \
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__attribute__((format(gnu_printf, fmt_idx, args_idx)))
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#endif
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#define UACPI_COMPILER_HAS_BUILTIN_MEMCPY
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#define UACPI_COMPILER_HAS_BUILTIN_MEMMOVE
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#define UACPI_COMPILER_HAS_BUILTIN_MEMSET
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#define UACPI_COMPILER_HAS_BUILTIN_MEMCMP
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#elif defined(__WATCOMC__)
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#define uacpi_unlikely(expr) expr
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#define uacpi_likely(expr) expr
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/*
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* The OpenWatcom documentation suggests this should be done using
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* _Pragma("off (unreferenced)") and _Pragma("pop (unreferenced)"),
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* but these pragmas appear to be no-ops. Use inline as the next best thing.
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* Note that OpenWatcom accepts redundant modifiers without a warning,
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* so UACPI_MAYBE_UNUSED inline still works.
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*/
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#define UACPI_MAYBE_UNUSED inline
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_BEGIN
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_END
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#define UACPI_PRINTF_DECL(fmt_idx, args_idx)
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#else
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#define uacpi_unlikely(expr) expr
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#define uacpi_likely(expr) expr
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#define UACPI_MAYBE_UNUSED
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_BEGIN
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#define UACPI_NO_UNUSED_PARAMETER_WARNINGS_END
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#define UACPI_PRINTF_DECL(fmt_idx, args_idx)
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#endif
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#ifndef UACPI_FALLTHROUGH
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#define UACPI_FALLTHROUGH do {} while (0)
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#endif
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#ifndef UACPI_POINTER_SIZE
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#ifdef _WIN32
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#ifdef _WIN64
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#define UACPI_POINTER_SIZE 8
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#else
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#define UACPI_POINTER_SIZE 4
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#endif
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#elif defined(__GNUC__)
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#define UACPI_POINTER_SIZE __SIZEOF_POINTER__
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#elif defined(__WATCOMC__)
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#ifdef __386__
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#define UACPI_POINTER_SIZE 4
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#elif defined(__I86__)
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#error uACPI does not support 16-bit mode compilation
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#else
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#error Unknown target architecture
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#endif
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#else
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#error Failed to detect pointer size
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#endif
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#endif
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#endif
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