df683b7439
The code was not properly getting the variable addresses and using the offset and address fields of the .data section. Fix all of that, and update the tests. Bug: 145162678 Test: Unit tests pass. Test: ./art/test/run-test --dex2oat-jobs 4 --host --prebuild --compact-dex-level fast --jit --no-relocate --runtime-option -Xcheck:jni 137-cfi Test: ./art/test/testrunner/testrunner.py -t 137 --host Change-Id: Ic61c4487334fd2273cda9c56eb1a3b525a03edb7
138 lines
3.4 KiB
C++
138 lines
3.4 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_ELF_H
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#define _LIBUNWINDSTACK_ELF_H
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#include <stddef.h>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <unordered_map>
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#include <utility>
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#include <unwindstack/ElfInterface.h>
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#include <unwindstack/Memory.h>
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#if !defined(EM_AARCH64)
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#define EM_AARCH64 183
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#endif
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namespace unwindstack {
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// Forward declaration.
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struct MapInfo;
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class Regs;
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enum ArchEnum : uint8_t {
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ARCH_UNKNOWN = 0,
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ARCH_ARM,
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ARCH_ARM64,
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ARCH_X86,
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ARCH_X86_64,
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ARCH_MIPS,
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ARCH_MIPS64,
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};
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class Elf {
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public:
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Elf(Memory* memory) : memory_(memory) {}
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virtual ~Elf() = default;
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bool Init();
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void InitGnuDebugdata();
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void Invalidate();
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std::string GetSoname();
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bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset);
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bool GetGlobalVariableOffset(const std::string& name, uint64_t* memory_offset);
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uint64_t GetRelPc(uint64_t pc, const MapInfo* map_info);
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bool StepIfSignalHandler(uint64_t rel_pc, Regs* regs, Memory* process_memory);
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bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory, bool* finished);
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ElfInterface* CreateInterfaceFromMemory(Memory* memory);
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std::string GetBuildID();
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int64_t GetLoadBias() { return load_bias_; }
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bool IsValidPc(uint64_t pc);
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void GetLastError(ErrorData* data);
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ErrorCode GetLastErrorCode();
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uint64_t GetLastErrorAddress();
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bool valid() { return valid_; }
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uint32_t machine_type() { return machine_type_; }
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uint8_t class_type() { return class_type_; }
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ArchEnum arch() { return arch_; }
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Memory* memory() { return memory_.get(); }
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ElfInterface* interface() { return interface_.get(); }
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ElfInterface* gnu_debugdata_interface() { return gnu_debugdata_interface_.get(); }
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static bool IsValidElf(Memory* memory);
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static bool GetInfo(Memory* memory, uint64_t* size);
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static int64_t GetLoadBias(Memory* memory);
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static std::string GetBuildID(Memory* memory);
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static void SetCachingEnabled(bool enable);
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static bool CachingEnabled() { return cache_enabled_; }
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static void CacheLock();
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static void CacheUnlock();
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static void CacheAdd(MapInfo* info);
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static bool CacheGet(MapInfo* info);
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static bool CacheAfterCreateMemory(MapInfo* info);
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protected:
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bool valid_ = false;
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int64_t load_bias_ = 0;
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std::unique_ptr<ElfInterface> interface_;
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std::unique_ptr<Memory> memory_;
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uint32_t machine_type_;
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uint8_t class_type_;
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ArchEnum arch_;
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// Protect calls that can modify internal state of the interface object.
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std::mutex lock_;
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std::unique_ptr<Memory> gnu_debugdata_memory_;
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std::unique_ptr<ElfInterface> gnu_debugdata_interface_;
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static bool cache_enabled_;
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static std::unordered_map<std::string, std::pair<std::shared_ptr<Elf>, bool>>* cache_;
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static std::mutex* cache_lock_;
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};
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_ELF_H
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