platform_system_core/debuggerd/tombstone.h
Josh Gao 7c89f9e955 debuggerd: fix several bugs caused by fork/setuid change.
Previously, we weren't PTRACE_ATTACHing to all of the threads of a
process, and we were also trying to do it after forking and dropping
privileges. This patch ensures that all ptrace attaching/detaching
happens in one place, before forking/exiting respectively.

Bug: http://b/26443860
Bug: http://b/26436605
Bug: http://b/26436486
Change-Id: Id94e0c1d9d56c051d0dd281d895aaa3285079198
2016-01-14 15:06:37 -08:00

39 lines
1.3 KiB
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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.
*/
#ifndef _DEBUGGERD_TOMBSTONE_H
#define _DEBUGGERD_TOMBSTONE_H
#include <stdbool.h>
#include <stddef.h>
#include <sys/types.h>
#include <set>
#include <string>
class BacktraceMap;
/* Create and open a tombstone file for writing.
* Returns a writable file descriptor, or -1 with errno set appropriately.
* If out_path is non-null, *out_path is set to the path of the tombstone file.
*/
int open_tombstone(std::string* path);
/* Creates a tombstone file and writes the crash dump to it. */
void engrave_tombstone(int tombstone_fd, BacktraceMap* map, pid_t pid, pid_t tid,
const std::set<pid_t>& siblings, int signal, int original_si_code,
uintptr_t abort_msg_address);
#endif // _DEBUGGERD_TOMBSTONE_H