150db124f3
Changes: - New JitDebug class to handle all of the jit gdb interface. - Add unit tests for all, along with new offline test using debug data. - Add new Memory type called MemoryOfflineParts that has multiple MemoryOffline objects to support the offline test. - Update the tools to use the JitDebug object. - Modify libbacktrace to use the JitDebug, but only looking in libart.so and libartd.so. - Change the Format32Bits to Is32Bit since it's more accurate and I use it in a different context where original name didn't make sense. - Add a new function to find global variables in an elf file (GetGlobalVariable). - Add a new function to determine if a pc is valid for this elf (IsValidPc). Bug: 68396769 Test: Ran new unit tests. Added new offline test that uses jit debug data. Test: Ran art test that generates jit data and verified a crash unwinds Test: through the jit data. Change-Id: I6e7ee2f5bab2242028a06feece156dff21c0a974
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/*
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* Copyright (C) 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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#ifndef _LIBUNWINDSTACK_SYMBOLS_H
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#define _LIBUNWINDSTACK_SYMBOLS_H
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#include <stdint.h>
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#include <string>
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#include <vector>
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namespace unwindstack {
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// Forward declaration.
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class Memory;
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class Symbols {
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struct Info {
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Info(uint64_t start_offset, uint64_t end_offset, uint64_t str_offset)
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: start_offset(start_offset), end_offset(end_offset), str_offset(str_offset) {}
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uint64_t start_offset;
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uint64_t end_offset;
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uint64_t str_offset;
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};
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public:
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Symbols(uint64_t offset, uint64_t size, uint64_t entry_size, uint64_t str_offset,
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uint64_t str_size);
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virtual ~Symbols() = default;
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const Info* GetInfoFromCache(uint64_t addr);
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template <typename SymType>
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bool GetName(uint64_t addr, uint64_t load_bias, Memory* elf_memory, std::string* name,
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uint64_t* func_offset);
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template <typename SymType>
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bool GetGlobal(Memory* elf_memory, const std::string& name, uint64_t* memory_address);
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void ClearCache() {
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symbols_.clear();
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cur_offset_ = offset_;
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}
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private:
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uint64_t cur_offset_;
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uint64_t offset_;
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uint64_t end_;
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uint64_t entry_size_;
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uint64_t str_offset_;
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uint64_t str_end_;
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std::vector<Info> symbols_;
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};
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_SYMBOLS_H
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