119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2012 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.
|
|
*/
|
|
|
|
#define LOG_TAG "DEBUG"
|
|
|
|
#include <errno.h>
|
|
#include <dirent.h>
|
|
#include <limits.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/ptrace.h>
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include <backtrace/Backtrace.h>
|
|
#include <log/log.h>
|
|
|
|
#include "backtrace.h"
|
|
|
|
#include "utility.h"
|
|
|
|
static void dump_process_header(log_t* log, pid_t pid) {
|
|
char path[PATH_MAX];
|
|
char procnamebuf[1024];
|
|
char* procname = NULL;
|
|
FILE* fp;
|
|
|
|
snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
|
|
if ((fp = fopen(path, "r"))) {
|
|
procname = fgets(procnamebuf, sizeof(procnamebuf), fp);
|
|
fclose(fp);
|
|
}
|
|
|
|
time_t t = time(NULL);
|
|
struct tm tm;
|
|
localtime_r(&t, &tm);
|
|
char timestr[64];
|
|
strftime(timestr, sizeof(timestr), "%F %T", &tm);
|
|
_LOG(log, logtype::BACKTRACE, "\n\n----- pid %d at %s -----\n", pid, timestr);
|
|
|
|
if (procname) {
|
|
_LOG(log, logtype::BACKTRACE, "Cmd line: %s\n", procname);
|
|
}
|
|
_LOG(log, logtype::BACKTRACE, "ABI: '%s'\n", ABI_STRING);
|
|
}
|
|
|
|
static void dump_process_footer(log_t* log, pid_t pid) {
|
|
_LOG(log, logtype::BACKTRACE, "\n----- end %d -----\n", pid);
|
|
}
|
|
|
|
static void dump_thread(log_t* log, BacktraceMap* map, pid_t pid, pid_t tid) {
|
|
char path[PATH_MAX];
|
|
char threadnamebuf[1024];
|
|
char* threadname = NULL;
|
|
FILE* fp;
|
|
|
|
snprintf(path, sizeof(path), "/proc/%d/comm", tid);
|
|
if ((fp = fopen(path, "r"))) {
|
|
threadname = fgets(threadnamebuf, sizeof(threadnamebuf), fp);
|
|
fclose(fp);
|
|
if (threadname) {
|
|
size_t len = strlen(threadname);
|
|
if (len && threadname[len - 1] == '\n') {
|
|
threadname[len - 1] = '\0';
|
|
}
|
|
}
|
|
}
|
|
|
|
_LOG(log, logtype::BACKTRACE, "\n\"%s\" sysTid=%d\n", threadname ? threadname : "<unknown>", tid);
|
|
|
|
std::unique_ptr<Backtrace> backtrace(Backtrace::Create(pid, tid, map));
|
|
if (backtrace->Unwind(0)) {
|
|
dump_backtrace_to_log(backtrace.get(), log, " ");
|
|
} else {
|
|
ALOGE("Unwind failed: tid = %d: %s", tid,
|
|
backtrace->GetErrorString(backtrace->GetError()).c_str());
|
|
}
|
|
}
|
|
|
|
void dump_backtrace(int fd, BacktraceMap* map, pid_t pid, pid_t tid,
|
|
const std::set<pid_t>& siblings, std::string* amfd_data) {
|
|
log_t log;
|
|
log.tfd = fd;
|
|
log.amfd_data = amfd_data;
|
|
|
|
dump_process_header(&log, pid);
|
|
dump_thread(&log, map, pid, tid);
|
|
|
|
for (pid_t sibling : siblings) {
|
|
dump_thread(&log, map, pid, sibling);
|
|
}
|
|
|
|
dump_process_footer(&log, pid);
|
|
}
|
|
|
|
void dump_backtrace_to_log(Backtrace* backtrace, log_t* log, const char* prefix) {
|
|
for (size_t i = 0; i < backtrace->NumFrames(); i++) {
|
|
_LOG(log, logtype::BACKTRACE, "%s%s\n", prefix, backtrace->FormatFrameData(i).c_str());
|
|
}
|
|
}
|