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72 lines
2.0 KiB
72 lines
2.0 KiB
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ |
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/****************************************************************************** |
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* |
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* Name: acgcc.h - GCC specific defines, etc. |
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* |
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* Copyright (C) 2000 - 2021, Intel Corp. |
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* |
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*****************************************************************************/ |
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#ifndef __ACGCC_H__ |
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#define __ACGCC_H__ |
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/* |
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* Use compiler specific <stdarg.h> is a good practice for even when |
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* -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined. |
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*/ |
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#ifndef va_arg |
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#ifdef ACPI_USE_BUILTIN_STDARG |
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typedef __builtin_va_list va_list; |
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#define va_start(v, l) __builtin_va_start(v, l) |
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#define va_end(v) __builtin_va_end(v) |
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#define va_arg(v, l) __builtin_va_arg(v, l) |
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#define va_copy(d, s) __builtin_va_copy(d, s) |
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#else |
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#include <stdarg.h> |
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#endif |
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#endif |
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#define ACPI_INLINE __inline__ |
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/* Function name is used for debug output. Non-ANSI, compiler-dependent */ |
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#define ACPI_GET_FUNCTION_NAME __func__ |
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/* |
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* This macro is used to tag functions as "printf-like" because |
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* some compilers (like GCC) can catch printf format string problems. |
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*/ |
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#define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1))) |
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/* |
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* Some compilers complain about unused variables. Sometimes we don't want to |
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* use all the variables (for example, _acpi_module_name). This allows us |
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* to tell the compiler warning in a per-variable manner that a variable |
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* is unused. |
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*/ |
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#define ACPI_UNUSED_VAR __attribute__ ((unused)) |
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/* GCC supports __VA_ARGS__ in macros */ |
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#define COMPILER_VA_MACRO 1 |
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/* GCC supports native multiply/shift on 32-bit platforms */ |
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#define ACPI_USE_NATIVE_MATH64 |
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/* GCC did not support __has_attribute until 5.1. */ |
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#ifndef __has_attribute |
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#define __has_attribute(x) 0 |
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#endif |
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/* |
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* Explicitly mark intentional explicit fallthrough to silence |
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* -Wimplicit-fallthrough in GCC 7.1+. |
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*/ |
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#if __has_attribute(__fallthrough__) |
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#define ACPI_FALLTHROUGH __attribute__((__fallthrough__)) |
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#endif |
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#endif /* __ACGCC_H__ */
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