include/android_stub/log/log_system.h

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