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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Name: acgcc.h - GCC specific defines, etc. | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
7735ca0e | 8 | * Copyright (C) 2000 - 2017, Intel Corp. |
1da177e4 LT |
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 | ||
5fb3ab84 LZ |
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 | */ | |
84676b87 LZ |
51 | #ifndef va_arg |
52 | #ifdef ACPI_USE_BUILTIN_STDARG | |
53 | typedef __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 | |
5fb3ab84 | 59 | #include <stdarg.h> |
84676b87 LZ |
60 | #endif |
61 | #endif | |
5fb3ab84 | 62 | |
8f40f171 LM |
63 | #define ACPI_INLINE __inline__ |
64 | ||
f9f4601f RM |
65 | /* Function name is used for debug output. Non-ANSI, compiler-dependent */ |
66 | ||
d5c003b4 | 67 | #define ACPI_GET_FUNCTION_NAME __func__ |
f9f4601f | 68 | |
b8e4d893 BM |
69 | /* |
70 | * This macro is used to tag functions as "printf-like" because | |
1da177e4 LT |
71 | * some compilers (like GCC) can catch printf format string problems. |
72 | */ | |
b8e4d893 | 73 | #define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1))) |
1da177e4 | 74 | |
b8e4d893 BM |
75 | /* |
76 | * Some compilers complain about unused variables. Sometimes we don't want to | |
f9f4601f | 77 | * use all the variables (for example, _acpi_module_name). This allows us |
fd589a8f | 78 | * to tell the compiler warning in a per-variable manner that a variable |
1da177e4 LT |
79 | * is unused. |
80 | */ | |
81 | #define ACPI_UNUSED_VAR __attribute__ ((unused)) | |
82 | ||
7b09d8fd LZ |
83 | /* GCC supports __VA_ARGS__ in macros */ |
84 | ||
85 | #define COMPILER_VA_MACRO 1 | |
86 | ||
65082bfc LZ |
87 | /* GCC supports native multiply/shift on 32-bit platforms */ |
88 | ||
89 | #define ACPI_USE_NATIVE_MATH64 | |
90 | ||
4be44fcd | 91 | #endif /* __ACGCC_H__ */ |