f2f17bfb16
Guard the macros by the compilers they should explicitly apply to and add a #error in case the compiler has no alignment directive defined, as ignoring alignment is likely to produce runtime errors. Also prefer _MSC_VER to _MSC_EXTENSIONS, as _MSC_EXTENSIONS may not always be defined by the MSVC compiler. Signed-off-by: Pete Batard <pete@akeo.ie>
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
/*++
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Copyright (c) 2016-2024 Pete Batard <pete@akeo.ie>
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Module Name:
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eficompiler.h
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Abstract:
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Compiler specific adjustments
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--*/
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#if defined(__GNUC__)
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#define EFI_UNUSED __attribute__((__unused__))
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#else
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#define EFI_UNUSED
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#endif
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#if defined(__clang__)
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#define EFI_NO_TAIL_CALL __attribute__((disable_tail_calls))
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#elif defined(__GNUC__)
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#define EFI_NO_TAIL_CALL __attribute__((optimize("no-optimize-sibling-calls")))
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#else
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#define EFI_NO_TAIL_CALL
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#endif
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#if defined(__clang__)
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#define EFI_OPTNONE __attribute__((optnone))
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#elif defined(__GNUC__)
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#define EFI_OPTNONE __attribute__((__optimize__("0")))
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#else
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#define EFI_OPTNONE
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#endif
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#if defined(__GNUC__)
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#define EFI_ALIGN(x) __attribute__((__aligned__(x)))
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#elif defined(_MSC_VER)
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#define EFI_ALIGN(x) __declspec(align(x))
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#else
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// Not being able to align is likely to break executables, so report it
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#error "No alignement directive is defined for this platform"
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#endif
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#if !defined(ALIGN)
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#define ALIGN(x) EFI_ALIGN(x)
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#endif
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#if defined(__GNUC__)
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#define EFI_NORETURN __attribute__((noreturn))
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#elif defined(_MSC_VER)
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#define EFI_NORETURN __declspec(noreturn)
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#else
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#define EFI_NORETURN
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#endif
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#if defined(__GNUC__)
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#define EFI_NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define EFI_NOINLINE __declspec(noinline)
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#else
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#define EFI_NOINLINE
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#endif
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/* Also add a catch-all on __attribute__() for MS compilers */
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#if defined(_MSC_VER)
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#define __attribute__(x)
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#endif
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