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