1 /* 2 * Copyright (C) 2015 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 #include <errno.h> 18 #include <stdarg.h> 19 20 #include <string> 21 22 #include <android-base/stringprintf.h> 23 #include <log/log.h> 24 25 // Forward declarations. 26 class Backtrace; 27 struct EventTagMap; 28 struct AndroidLogEntry; 29 30 std::string g_fake_log_buf; 31 32 std::string g_fake_log_print; 33 34 void resetLogs() { 35 g_fake_log_buf = ""; 36 g_fake_log_print = ""; 37 } 38 39 std::string getFakeLogBuf() { 40 return g_fake_log_buf; 41 } 42 43 std::string getFakeLogPrint() { 44 return g_fake_log_print; 45 } 46 47 extern "C" int async_safe_format_log(int priority, const char* tag, const char* format, ...) { 48 g_fake_log_print += std::to_string(priority) + ' ' + tag + ' '; 49 50 va_list ap; 51 va_start(ap, format); 52 android::base::StringAppendV(&g_fake_log_print, format, ap); 53 va_end(ap); 54 55 g_fake_log_print += '\n'; 56 57 return 0; 58 } 59 60 extern "C" int async_safe_write_log(int priority, const char* tag, const char* msg) { 61 g_fake_log_print += std::to_string(priority) + ' ' + tag + ' ' + msg + '\n'; 62 63 return 0; 64 } 65 66 extern "C" int __android_log_buf_write(int bufId, int prio, const char* tag, const char* msg) { 67 g_fake_log_buf += std::to_string(bufId) + ' ' + std::to_string(prio) + ' '; 68 g_fake_log_buf += tag; 69 g_fake_log_buf += ' '; 70 g_fake_log_buf += msg; 71 return 1; 72 } 73 74 extern "C" int __android_log_print(int prio, const char* tag, const char* fmt, ...) { 75 g_fake_log_print += std::to_string(prio) + ' '; 76 g_fake_log_print += tag; 77 g_fake_log_print += ' '; 78 79 va_list ap; 80 va_start(ap, fmt); 81 android::base::StringAppendV(&g_fake_log_print, fmt, ap); 82 va_end(ap); 83 84 g_fake_log_print += '\n'; 85 86 return 1; 87 } 88 89 extern "C" log_id_t android_name_to_log_id(const char*) { 90 return LOG_ID_SYSTEM; 91 } 92 93 extern "C" struct logger_list* android_logger_list_open(log_id_t, int, unsigned int, pid_t) { 94 errno = EACCES; 95 return nullptr; 96 } 97 98 extern "C" int android_logger_list_read(struct logger_list*, struct log_msg*) { 99 return 0; 100 } 101 102 extern "C" EventTagMap* android_openEventTagMap(const char*) { 103 return nullptr; 104 } 105 106 extern "C" int android_log_processBinaryLogBuffer( 107 struct logger_entry*, 108 AndroidLogEntry*, const EventTagMap*, char*, int) { 109 return 0; 110 } 111 112 extern "C" void android_logger_list_free(struct logger_list*) { 113 } 114
