46756821c4
This includes removing the map_info.c source and replacing it with the BacktraceMap class to handle all map related code. Change all callers of libbacktrace map functionality. Also modify the corkscrew thread code so that it doesn't need to build the map twice (once in the corkscrew format and once in the libbacktrace format). Change-Id: I32865a39f83a3dd6f958fc03c2759ba47d12382e
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/*
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* Copyright (C) 2013 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 _LIBBACKTRACE_BACKTRACE_THREAD_H
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#define _LIBBACKTRACE_BACKTRACE_THREAD_H
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#include <inttypes.h>
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#include <sys/types.h>
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#include "Backtrace.h"
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enum state_e {
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STATE_WAITING = 0,
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STATE_DUMPING,
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STATE_DONE,
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STATE_CANCEL,
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};
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class BacktraceThreadInterface;
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struct ThreadEntry {
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ThreadEntry(
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BacktraceThreadInterface* impl, pid_t pid, pid_t tid,
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size_t num_ignore_frames);
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~ThreadEntry();
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bool Match(pid_t chk_pid, pid_t chk_tid) { return (chk_pid == pid && chk_tid == tid); }
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static ThreadEntry* AddThreadToUnwind(
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BacktraceThreadInterface* thread_intf, pid_t pid, pid_t tid,
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size_t num_ignored_frames);
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BacktraceThreadInterface* thread_intf;
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pid_t pid;
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pid_t tid;
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ThreadEntry* next;
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ThreadEntry* prev;
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int32_t state;
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int num_ignore_frames;
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};
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// Interface class that does not contain any local storage, only defines
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// virtual functions to be defined by subclasses.
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class BacktraceThreadInterface {
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public:
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virtual ~BacktraceThreadInterface() { }
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virtual bool Init() = 0;
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virtual void ThreadUnwind(
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siginfo_t* siginfo, void* sigcontext, size_t num_ignore_frames) = 0;
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};
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class BacktraceThread : public BacktraceCurrent {
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public:
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// impl and thread_intf should point to the same object, this allows
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// the compiler to catch if an implementation does not properly
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// subclass both.
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BacktraceThread(
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BacktraceImpl* impl, BacktraceThreadInterface* thread_intf, pid_t tid,
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BacktraceMap* map);
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virtual ~BacktraceThread();
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virtual bool Unwind(size_t num_ignore_frames);
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virtual void ThreadUnwind(
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siginfo_t* siginfo, void* sigcontext, size_t num_ignore_frames) {
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thread_intf_->ThreadUnwind(siginfo, sigcontext, num_ignore_frames);
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}
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private:
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virtual bool TriggerUnwindOnThread(ThreadEntry* entry);
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virtual void FinishUnwind();
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BacktraceThreadInterface* thread_intf_;
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};
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#endif // _LIBBACKTRACE_BACKTRACE_THREAD_H
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