platform_system_core/debuggerd/backtrace.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

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1.2 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_BACKTRACE_H
#define _DEBUGGERD_BACKTRACE_H
#include <sys/types.h>
#include <set>
#include "utility.h"
class Backtrace;
class BacktraceMap;
// Dumps a backtrace using a format similar to what Dalvik uses so that the result
// can be intermixed in a bug report.
void dump_backtrace(int fd, int amfd, BacktraceMap* map, pid_t pid, pid_t tid,
const std::set<pid_t>& siblings);
/* Dumps the backtrace in the backtrace data structure to the log. */
void dump_backtrace_to_log(Backtrace* backtrace, log_t* log, const char* prefix);
#endif // _DEBUGGERD_BACKTRACE_H