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