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 - 2019, Intel Corp.
7 *
8 *****************************************************************************/
9
10#ifndef __ACGCC_H__
11#define __ACGCC_H__
12
13/*
14 * Use compiler specific <stdarg.h> is a good practice for even when
15 * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
16 */
17#ifndef va_arg
18#ifdef ACPI_USE_BUILTIN_STDARG
19typedef __builtin_va_list va_list;
20#define va_start(v, l) __builtin_va_start(v, l)
21#define va_end(v) __builtin_va_end(v)
22#define va_arg(v, l) __builtin_va_arg(v, l)
23#define va_copy(d, s) __builtin_va_copy(d, s)
24#else
25#include <stdarg.h>
26#endif
27#endif
28
29#define ACPI_INLINE __inline__
30
31/* Function name is used for debug output. Non-ANSI, compiler-dependent */
32
33#define ACPI_GET_FUNCTION_NAME __func__
34
35/*
36 * This macro is used to tag functions as "printf-like" because
37 * some compilers (like GCC) can catch printf format string problems.
38 */
39#define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1)))
40
41/*
42 * Some compilers complain about unused variables. Sometimes we don't want to
43 * use all the variables (for example, _acpi_module_name). This allows us
44 * to tell the compiler warning in a per-variable manner that a variable
45 * is unused.
46 */
47#define ACPI_UNUSED_VAR __attribute__ ((unused))
48
49/* GCC supports __VA_ARGS__ in macros */
50
51#define COMPILER_VA_MACRO 1
52
53/* GCC supports native multiply/shift on 32-bit platforms */
54
55#define ACPI_USE_NATIVE_MATH64
56
57#endif /* __ACGCC_H__ */
58