99235e9967
When someone enables wait_for_gdb, activity manager will kill the
stopped process before a developer can attach to the process. To
allow debugging in this case, change the code to only contact the
activity manager right before continuing the process that is
crashing.
Also, modify the conditions under which to do a gdb attach. The previous
code did a partial attach if perform_dump failed. The new version simply
allows an attach regardless of whether perform_dump passes or fails.
Bug: 28409358
(cherry picked from commit 9818bd2bbe)
Change-Id: I42f464b69332748e16b07d9d00f44b3aa26ce8b7
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* system/debuggerd/utility.h
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**
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** Copyright 2008, 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 _DEBUGGERD_UTILITY_H
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#define _DEBUGGERD_UTILITY_H
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#include <stdbool.h>
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#include <sys/types.h>
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#include <string>
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#include <backtrace/Backtrace.h>
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// Figure out the abi based on defined macros.
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#if defined(__arm__)
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#define ABI_STRING "arm"
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#elif defined(__aarch64__)
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#define ABI_STRING "arm64"
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#elif defined(__mips__) && !defined(__LP64__)
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#define ABI_STRING "mips"
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#elif defined(__mips__) && defined(__LP64__)
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#define ABI_STRING "mips64"
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#elif defined(__i386__)
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#define ABI_STRING "x86"
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#elif defined(__x86_64__)
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#define ABI_STRING "x86_64"
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#else
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#error "Unsupported ABI"
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#endif
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struct log_t{
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// Tombstone file descriptor.
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int tfd;
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// Data to be sent to the Activity Manager.
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std::string* amfd_data;
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// The tid of the thread that crashed.
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pid_t crashed_tid;
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// The tid of the thread we are currently working with.
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pid_t current_tid;
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// logd daemon crash, can block asking for logcat data, allow suppression.
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bool should_retrieve_logcat;
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log_t()
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: tfd(-1), amfd_data(nullptr), crashed_tid(-1), current_tid(-1),
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should_retrieve_logcat(true) {}
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};
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// List of types of logs to simplify the logging decision in _LOG
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enum logtype {
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HEADER,
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THREAD,
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REGISTERS,
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FP_REGISTERS,
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BACKTRACE,
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MAPS,
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MEMORY,
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STACK,
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LOGS
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};
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// Log information onto the tombstone.
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void _LOG(log_t* log, logtype ltype, const char *fmt, ...)
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__attribute__ ((format(printf, 3, 4)));
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int wait_for_signal(pid_t tid, int* total_sleep_time_usec);
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void dump_memory(log_t* log, Backtrace* backtrace, uintptr_t addr, const char* fmt, ...);
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#endif // _DEBUGGERD_UTILITY_H
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