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/*
* 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.
*/
#include <stdlib.h>
#include <unistd.h>
#include <cutils/debugger.h>
#include <cutils/sockets.h>
int dump_tombstone(pid_t tid, char* pathbuf, size_t pathlen) {
int s = socket_local_client(DEBUGGER_SOCKET_NAME,
ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
if (s < 0) {
return -1;
}
debugger_msg_t msg;
msg.tid = tid;
msg.action = DEBUGGER_ACTION_DUMP_TOMBSTONE;
int result = 0;
if (TEMP_FAILURE_RETRY(write(s, &msg, sizeof(msg))) != sizeof(msg)) {
result = -1;
} else {
char ack;
if (TEMP_FAILURE_RETRY(read(s, &ack, 1)) != 1) {
result = -1;
} else {
if (pathbuf && pathlen) {
ssize_t n = TEMP_FAILURE_RETRY(read(s, pathbuf, pathlen - 1));
if (n <= 0) {
result = -1;
} else {
pathbuf[n] = '\0';
}
}
}
}
TEMP_FAILURE_RETRY(close(s));
return result;
}
int dump_backtrace_to_file(pid_t tid, int fd) {
int s = socket_local_client(DEBUGGER_SOCKET_NAME,
ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
if (s < 0) {
return -1;
}
debugger_msg_t msg;
msg.tid = tid;
msg.action = DEBUGGER_ACTION_DUMP_BACKTRACE;
int result = 0;
if (TEMP_FAILURE_RETRY(write(s, &msg, sizeof(msg))) != sizeof(msg)) {
result = -1;
} else {
char ack;
if (TEMP_FAILURE_RETRY(read(s, &ack, 1)) != 1) {
result = -1;
} else {
char buffer[4096];
ssize_t n;
while ((n = TEMP_FAILURE_RETRY(read(s, buffer, sizeof(buffer)))) > 0) {
if (TEMP_FAILURE_RETRY(write(fd, buffer, n)) != n) {
result = -1;
break;
}
}
}
}
TEMP_FAILURE_RETRY(close(s));
return result;
}
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