compiler.h revision a715cb1840f9a0c813c90707a351687f7a77950e 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef NVRAM_MESSAGES_COMPILER_H_
18#define NVRAM_MESSAGES_COMPILER_H_
19
20extern "C" {
21#include <stdlib.h>
22}
23
24#if defined(__GNUC__) || defined(__clang__)
25#define NVRAM_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
26#else
27#define NVRAM_WARN_UNUSED_RESULT
28#endif
29
30// Check a condition, abort if it doesn't hold.
31#define NVRAM_CHECK(cond) if (!(cond)) abort()
32
33// The noinline attribute is understood both by clang and GCC.
34#define NVRAM_NOINLINE __attribute__((noinline))
35
36// The visibility attribute works both with clang and GCC.
37#define NVRAM_EXPORT __attribute__((visibility("default")))
38
39#endif  // NVRAM_MESSAGES_COMPILER_H_
40