218f7fb68e
Use nasty clone hacks to let us close random file descriptors to be able to connect to debuggerd when the fd table is full. Bug: http://b/32013594 Test: crasher exhaustfd-SIGSEGV Change-Id: I47772e9a5994da4473bd935b105d9c36827c017a
59 lines
1.7 KiB
C
59 lines
1.7 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 <stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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// On 32-bit devices, DEBUGGER_SOCKET_NAME is a 32-bit debuggerd.
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// On 64-bit devices, DEBUGGER_SOCKET_NAME is a 64-bit debuggerd.
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#define DEBUGGER_SOCKET_NAME "android:debuggerd"
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// Used only on 64-bit devices for debuggerd32.
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#define DEBUGGER32_SOCKET_NAME "android:debuggerd32"
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__BEGIN_DECLS
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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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// Make sure that all values have a fixed size so that this structure
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// is the same for 32 bit and 64 bit processes.
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typedef struct __attribute__((packed)) {
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int32_t action;
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pid_t tid;
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pid_t ignore_tid;
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uint64_t abort_msg_address;
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} debugger_msg_t;
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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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__END_DECLS
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