4decbe0d6c
Bug: http://b/34586922 Test: kill -SYS $$ Change-Id: I31dadb9c65141d0c5556cc7256439e0a8d1519ab
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
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* Copyright 2016 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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#pragma once
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#include <signal.h>
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#include <stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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// These callbacks are called in a signal handler, and thus must be async signal safe.
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// If null, the callbacks will not be called.
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typedef struct {
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struct abort_msg_t* (*get_abort_message)();
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void (*post_dump)();
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} debuggerd_callbacks_t;
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void debuggerd_init(debuggerd_callbacks_t* callbacks);
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// DEBUGGER_ACTION_DUMP_TOMBSTONE and DEBUGGER_ACTION_DUMP_BACKTRACE are both
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// triggered via DEBUGGER_SIGNAL. The debugger_action_t is sent via si_value
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// using sigqueue(2) or equivalent. If no si_value is specified (e.g. if the
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// signal is sent by kill(2)), the default behavior is to print the backtrace
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// to the log.
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#define DEBUGGER_SIGNAL (__SIGRTMIN + 3)
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static void __attribute__((__unused__)) debuggerd_register_handlers(struct sigaction* action) {
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sigaction(SIGABRT, action, nullptr);
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sigaction(SIGBUS, action, nullptr);
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sigaction(SIGFPE, action, nullptr);
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sigaction(SIGILL, action, nullptr);
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sigaction(SIGSEGV, action, nullptr);
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#if defined(SIGSTKFLT)
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sigaction(SIGSTKFLT, action, nullptr);
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#endif
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sigaction(SIGSYS, action, nullptr);
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sigaction(SIGTRAP, action, nullptr);
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sigaction(DEBUGGER_SIGNAL, action, nullptr);
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}
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__END_DECLS
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