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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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