1/******************************************************************************
2 *
3 * Name: acgcc.h - GCC specific defines, etc.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2019, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACGCC_H__
45#define __ACGCC_H__
46
47/*
48 * Use compiler specific <stdarg.h> is a good practice for even when
49 * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
50 */
51#ifndef va_arg
52#ifdef ACPI_USE_BUILTIN_STDARG
53typedef __builtin_va_list va_list;
54#define va_start(v, l) __builtin_va_start(v, l)
55#define va_end(v) __builtin_va_end(v)
56#define va_arg(v, l) __builtin_va_arg(v, l)
57#define va_copy(d, s) __builtin_va_copy(d, s)
58#else
59#if defined(_KERNEL) || defined(_STANDALONE)
60#include <sys/stdarg.h>
61#else
62#include <stdarg.h>
63#endif
64#endif
65#endif
66
67#define ACPI_INLINE __inline__
68
69/* Function name is used for debug output. Non-ANSI, compiler-dependent */
70
71#define ACPI_GET_FUNCTION_NAME __func__
72
73/*
74 * This macro is used to tag functions as "printf-like" because
75 * some compilers (like GCC) can catch printf format string problems.
76 */
77#define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1)))
78
79/*
80 * Some compilers complain about unused variables. Sometimes we don't want to
81 * use all the variables (for example, _AcpiModuleName). This allows us
82 * to tell the compiler warning in a per-variable manner that a variable
83 * is unused.
84 */
85#define ACPI_UNUSED_VAR __attribute__ ((unused))
86
87/* GCC supports __VA_ARGS__ in macros */
88
89#define COMPILER_VA_MACRO 1
90
91/* GCC supports native multiply/shift on 32-bit platforms */
92
93#define ACPI_USE_NATIVE_MATH64
94
95#endif /* __ACGCC_H__ */
96