platform_system_core/libunwindstack/tests/LogFake.cpp
Christopher Ferris d226a51409 Make the library usable as a library.
- Add namespace unwindstack everywhere so that it's easier for other
  code to use the library.
- Move some of the header files into include/unwindstack so that they
  can be exposed.
- Modify the headers so that only a limited number need to be exposed.
- Update the tools to use the new headers.
- Add a GetLoadBias() call on the Elf object. This prevents the need
  to get the interface object out of the Elf object.
- Move the GetRelPc() call out of the Reg class, to the Elf class. It's
  not always the case that a Reg object will be around when you want to
  get a relative pc. The tests for this moved to ElfTest.cpp.

Bug: 23762183

Test: Unit tests pass.
Change-Id: Iac609dac1dd90ed83d1a1e24ff2579c96c023bc3
2017-07-14 12:20:23 -07:00

105 lines
2.5 KiB
C++

/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <stdarg.h>
#include <string>
#include <android-base/stringprintf.h>
#include <log/log.h>
#include "LogFake.h"
// Forward declarations.
struct EventTagMap;
struct AndroidLogEntry;
std::string g_fake_log_buf;
std::string g_fake_log_print;
namespace unwindstack {
void ResetLogs() {
g_fake_log_buf = "";
g_fake_log_print = "";
}
std::string GetFakeLogBuf() {
return g_fake_log_buf;
}
std::string GetFakeLogPrint() {
return g_fake_log_print;
}
} // namespace unwindstack
extern "C" int __android_log_buf_write(int bufId, int prio, const char* tag, const char* msg) {
g_fake_log_buf += std::to_string(bufId) + ' ' + std::to_string(prio) + ' ';
g_fake_log_buf += tag;
g_fake_log_buf += ' ';
g_fake_log_buf += msg;
return 1;
}
extern "C" int __android_log_print(int prio, const char* tag, const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
int val = __android_log_vprint(prio, tag, fmt, ap);
va_end(ap);
return val;
}
extern "C" int __android_log_vprint(int prio, const char* tag, const char* fmt, va_list ap) {
g_fake_log_print += std::to_string(prio) + ' ';
g_fake_log_print += tag;
g_fake_log_print += ' ';
android::base::StringAppendV(&g_fake_log_print, fmt, ap);
g_fake_log_print += '\n';
return 1;
}
extern "C" log_id_t android_name_to_log_id(const char*) {
return LOG_ID_SYSTEM;
}
extern "C" struct logger_list* android_logger_list_open(log_id_t, int, unsigned int, pid_t) {
errno = EACCES;
return nullptr;
}
extern "C" int android_logger_list_read(struct logger_list*, struct log_msg*) {
return 0;
}
extern "C" EventTagMap* android_openEventTagMap(const char*) {
return nullptr;
}
extern "C" int android_log_processBinaryLogBuffer(
struct logger_entry*,
AndroidLogEntry*, const EventTagMap*, char*, int) {
return 0;
}
extern "C" void android_logger_list_free(struct logger_list*) {
}