1/* 2 * Copyright (C) 2005-2017 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 _LIBS_LOG_LOG_SYSTEM_H 18#define _LIBS_LOG_LOG_SYSTEM_H 19 20#include <android/log.h> 21#include <log/log_id.h> 22 23/* 24 * Normally we strip the effects of ALOGV (VERBOSE messages), 25 * LOG_FATAL and LOG_FATAL_IF (FATAL assert messages) from the 26 * release builds be defining NDEBUG. You can modify this (for 27 * example with "#define LOG_NDEBUG 0" at the top of your source 28 * file) to change that behavior. 29 */ 30 31#ifndef LOG_NDEBUG 32#ifdef NDEBUG 33#define LOG_NDEBUG 1 34#else 35#define LOG_NDEBUG 0 36#endif 37#endif 38 39#ifndef __predict_false 40#define __predict_false(exp) __builtin_expect((exp) != 0, 0) 41#endif 42 43/* 44 * Simplified macro to send a verbose system log message using current LOG_TAG. 45 */ 46#ifndef SLOGV 47#define __SLOGV(...) \ 48 ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_VERBOSE, LOG_TAG, \ 49 __VA_ARGS__)) 50#if LOG_NDEBUG 51#define SLOGV(...) \ 52 do { \ 53 if (0) { \ 54 __SLOGV(__VA_ARGS__); \ 55 } \ 56 } while (0) 57#else 58#define SLOGV(...) __SLOGV(__VA_ARGS__) 59#endif 60#endif 61 62#ifndef SLOGV_IF 63#if LOG_NDEBUG 64#define SLOGV_IF(cond, ...) ((void)0) 65#else 66#define SLOGV_IF(cond, ...) \ 67 ((__predict_false(cond)) \ 68 ? ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_VERBOSE, \ 69 LOG_TAG, __VA_ARGS__)) \ 70 : (void)0) 71#endif 72#endif 73 74/* 75 * Simplified macro to send a debug system log message using current LOG_TAG. 76 */ 77#ifndef SLOGD 78#define SLOGD(...) \ 79 ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_DEBUG, LOG_TAG, \ 80 __VA_ARGS__)) 81#endif 82 83#ifndef SLOGD_IF 84#define SLOGD_IF(cond, ...) \ 85 ((__predict_false(cond)) \ 86 ? ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_DEBUG, \ 87 LOG_TAG, __VA_ARGS__)) \ 88 : (void)0) 89#endif 90 91/* 92 * Simplified macro to send an info system log message using current LOG_TAG. 93 */ 94#ifndef SLOGI 95#define SLOGI(...) \ 96 ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_INFO, LOG_TAG, \ 97 __VA_ARGS__)) 98#endif 99 100#ifndef SLOGI_IF 101#define SLOGI_IF(cond, ...) \ 102 ((__predict_false(cond)) \ 103 ? ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_INFO, \ 104 LOG_TAG, __VA_ARGS__)) \ 105 : (void)0) 106#endif 107 108/* 109 * Simplified macro to send a warning system log message using current LOG_TAG. 110 */ 111#ifndef SLOGW 112#define SLOGW(...) \ 113 ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_WARN, LOG_TAG, \ 114 __VA_ARGS__)) 115#endif 116 117#ifndef SLOGW_IF 118#define SLOGW_IF(cond, ...) \ 119 ((__predict_false(cond)) \ 120 ? ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_WARN, \ 121 LOG_TAG, __VA_ARGS__)) \ 122 : (void)0) 123#endif 124 125/* 126 * Simplified macro to send an error system log message using current LOG_TAG. 127 */ 128#ifndef SLOGE 129#define SLOGE(...) \ 130 ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_ERROR, LOG_TAG, \ 131 __VA_ARGS__)) 132#endif 133 134#ifndef SLOGE_IF 135#define SLOGE_IF(cond, ...) \ 136 ((__predict_false(cond)) \ 137 ? ((void)__android_log_buf_print(LOG_ID_SYSTEM, ANDROID_LOG_ERROR, \ 138 LOG_TAG, __VA_ARGS__)) \ 139 : (void)0) 140#endif 141 142#endif /* _LIBS_LOG_LOG_SYSTEM_H */ 143