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