6f3981c181
Also add a comment to the GetElf function to indicate that it never returns
nullptr.
Also needed to add this library to the a million and one places that the vndk
has hard-coded this data.
Bug: 23762183
Test: Built, nothing uses the new code.
Test: However, I did run backtrace_test using this code, and all tests pass.
Change-Id: Ib270665dcb7a7607075e36d88be76dbde6e2faa8
(cherry picked from commit dc4104b720)
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
/*
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* Copyright (C) 2017 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_UNWIND_STACK_H
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#define _LIBBACKTRACE_UNWIND_STACK_H
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#include <stdint.h>
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#include <string>
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#include <backtrace/BacktraceMap.h>
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#include <unwindstack/Memory.h>
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#include "BacktraceCurrent.h"
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#include "BacktracePtrace.h"
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class UnwindStackCurrent : public BacktraceCurrent {
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public:
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UnwindStackCurrent(pid_t pid, pid_t tid, BacktraceMap* map);
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virtual ~UnwindStackCurrent() = default;
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std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset) override;
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bool UnwindFromContext(size_t num_ignore_frames, ucontext_t* ucontext) override;
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private:
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std::unique_ptr<unwindstack::Memory> memory_;
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};
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class UnwindStackPtrace : public BacktracePtrace {
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public:
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UnwindStackPtrace(pid_t pid, pid_t tid, BacktraceMap* map);
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virtual ~UnwindStackPtrace() = default;
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bool Unwind(size_t num_ignore_frames, ucontext_t* context) override;
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std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset);
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private:
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std::unique_ptr<unwindstack::Memory> memory_;
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};
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#endif // _LIBBACKTRACE_UNWIND_STACK_H
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