fa41e0f5c8
Under some unknown circumstances, debuggerd could become unresponsive.
If you try and take a bugreport during this time, it will hang forever.
Adding functions that have a timeout will allow dumpstate to stop if
dumping is taking too long.
Bug: 18766581
(cherry picked from commit 5f2ff6a910)
Change-Id: I39e8e9c60209e3ef9efac795fedb8e1edce2bd3e
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __CUTILS_DEBUGGER_H
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#define __CUTILS_DEBUGGER_H
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DEBUGGER32_SOCKET_NAME "android:debuggerd"
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#define DEBUGGER64_SOCKET_NAME "android:debuggerd64"
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#if defined(__LP64__)
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#define DEBUGGER_SOCKET_NAME DEBUGGER64_SOCKET_NAME
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#else
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#define DEBUGGER_SOCKET_NAME DEBUGGER32_SOCKET_NAME
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#endif
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typedef enum {
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// dump a crash
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DEBUGGER_ACTION_CRASH,
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// dump a tombstone file
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DEBUGGER_ACTION_DUMP_TOMBSTONE,
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// dump a backtrace only back to the socket
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DEBUGGER_ACTION_DUMP_BACKTRACE,
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} debugger_action_t;
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typedef struct {
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debugger_action_t action;
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pid_t tid;
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uintptr_t abort_msg_address;
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int32_t original_si_code;
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} debugger_msg_t;
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#if defined(__LP64__)
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// For a 64 bit process to contact the 32 bit debuggerd.
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typedef struct {
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debugger_action_t action;
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pid_t tid;
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uint32_t abort_msg_address;
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int32_t original_si_code;
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} debugger32_msg_t;
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#endif
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/* Dumps a process backtrace, registers, and stack to a tombstone file (requires root).
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* Stores the tombstone path in the provided buffer.
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* Returns 0 on success, -1 on error.
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*/
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int dump_tombstone(pid_t tid, char* pathbuf, size_t pathlen);
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/* Dumps a process backtrace, registers, and stack to a tombstone file (requires root).
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* Stores the tombstone path in the provided buffer.
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* If reading debugger data from debuggerd ever takes longer than timeout_secs
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* seconds, then stop and return an error.
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* Returns 0 on success, -1 on error.
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*/
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int dump_tombstone_timeout(pid_t tid, char* pathbuf, size_t pathlen, int timeout_secs);
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/* Dumps a process backtrace only to the specified file (requires root).
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* Returns 0 on success, -1 on error.
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*/
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int dump_backtrace_to_file(pid_t tid, int fd);
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/* Dumps a process backtrace only to the specified file (requires root).
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* If reading debugger data from debuggerd ever takes longer than timeout_secs
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* seconds, then stop and return an error.
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* Returns 0 on success, -1 on error.
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*/
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int dump_backtrace_to_file_timeout(pid_t tid, int fd, int timeout_secs);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CUTILS_DEBUGGER_H */
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