platform_system_core/libbacktrace/Corkscrew.h
Christopher Ferris 17e91d44ed Rewrite libbacktrace using C++.
The old code was essentially trying to be C++ in C and was awkward. This
change makes it all objects with a thin layer that C code can use.

There is a C++ backtrace object that is not very useful, this code will
replace it.

This change also includes moving the backtrace test to a gtest, and adding
coverage of all major functionality.

Bug: 8410085
Change-Id: Iae0f1b09b3dd60395f71ed66010c1ea5cdd37841
2013-10-28 17:55:25 -07:00

74 lines
1.9 KiB
C++

/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBBACKTRACE_CORKSCREW_H
#define _LIBBACKTRACE_CORKSCREW_H
#include <inttypes.h>
#include <string>
#include <backtrace/backtrace.h>
#include <backtrace/Backtrace.h>
#include <corkscrew/backtrace.h>
#include "Backtrace.h"
#include "BacktraceThread.h"
class CorkscrewCommon : public BacktraceImpl {
public:
bool GenerateFrameData(backtrace_frame_t* cork_frames, ssize_t num_frames);
};
class CorkscrewCurrent : public CorkscrewCommon {
public:
CorkscrewCurrent();
virtual ~CorkscrewCurrent();
virtual bool Unwind(size_t num_ignore_threads);
virtual std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset);
};
class CorkscrewThread : public CorkscrewCurrent, public BacktraceThreadInterface {
public:
CorkscrewThread();
virtual ~CorkscrewThread();
virtual bool Init();
virtual void ThreadUnwind(
siginfo_t* siginfo, void* sigcontext, size_t num_ignore_frames);
private:
map_info_t* corkscrew_map_info_;
};
class CorkscrewPtrace : public CorkscrewCommon {
public:
CorkscrewPtrace();
virtual ~CorkscrewPtrace();
virtual std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset);
virtual bool Unwind(size_t num_ignore_threads);
private:
ptrace_context_t* ptrace_context_;
};
#endif // _LIBBACKTRACE_CORKSCREW_H