1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2/****************************************************************************** 3 * 4 * Name: acgcc.h - GCC specific defines, etc. 5 * 6 * Copyright (C) 2000 - 2021, Intel Corp. 7 * 8 *****************************************************************************/ 9 10#ifndef __ACGCC_H__ 11#define __ACGCC_H__ 12 13#ifndef va_arg 14#ifdef __KERNEL__ 15#include <linux/stdarg.h> 16#else 17#include <stdarg.h> 18#endif /* __KERNEL__ */ 19#endif /* ! va_arg */ 20 21#define ACPI_INLINE __inline__ 22 23/* Function name is used for debug output. Non-ANSI, compiler-dependent */ 24 25#define ACPI_GET_FUNCTION_NAME __func__ 26 27/* 28 * This macro is used to tag functions as "printf-like" because 29 * some compilers (like GCC) can catch printf format string problems. 30 */ 31#define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1))) 32 33/* 34 * Some compilers complain about unused variables. Sometimes we don't want to 35 * use all the variables (for example, _acpi_module_name). This allows us 36 * to tell the compiler warning in a per-variable manner that a variable 37 * is unused. 38 */ 39#define ACPI_UNUSED_VAR __attribute__ ((unused)) 40 41/* GCC supports __VA_ARGS__ in macros */ 42 43#define COMPILER_VA_MACRO 1 44 45/* GCC supports native multiply/shift on 32-bit platforms */ 46 47#define ACPI_USE_NATIVE_MATH64 48 49/* GCC did not support __has_attribute until 5.1. */ 50 51#ifndef __has_attribute 52#define __has_attribute(x) 0 53#endif 54 55/* 56 * Explicitly mark intentional explicit fallthrough to silence 57 * -Wimplicit-fallthrough in GCC 7.1+. 58 */ 59 60#if __has_attribute(__fallthrough__) 61#define ACPI_FALLTHROUGH __attribute__((__fallthrough__)) 62#endif 63 64#endif /* __ACGCC_H__ */ 65