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/*
* Copyright (C) 2017 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 _LIBUNWINDSTACK_TESTS_ELF_FAKE_H
#define _LIBUNWINDSTACK_TESTS_ELF_FAKE_H
#include <stdint.h>
#include <deque>
#include <string>
#include <unordered_map>
#include <unwindstack/Elf.h>
#include <unwindstack/ElfInterface.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "ElfInterfaceArm.h"
namespace unwindstack {
struct StepData {
StepData(uint64_t pc, uint64_t sp, bool finished) : pc(pc), sp(sp), finished(finished) {}
uint64_t pc;
uint64_t sp;
bool finished;
};
struct FunctionData {
FunctionData(std::string name, uint64_t offset) : name(name), offset(offset) {}
std::string name;
uint64_t offset;
};
class ElfFake : public Elf {
public:
ElfFake(Memory* memory) : Elf(memory) { valid_ = true; }
virtual ~ElfFake() = default;
void FakeSetValid(bool valid) { valid_ = valid; }
void FakeSetLoadBias(uint64_t load_bias) { load_bias_ = load_bias; }
void FakeSetInterface(ElfInterface* interface) { interface_.reset(interface); }
void FakeSetGnuDebugdataInterface(ElfInterface* interface) {
gnu_debugdata_interface_.reset(interface);
}
};
class ElfInterfaceFake : public ElfInterface {
public:
ElfInterfaceFake(Memory* memory) : ElfInterface(memory) {}
virtual ~ElfInterfaceFake() = default;
bool Init(uint64_t*) override { return false; }
void InitHeaders(uint64_t) override {}
bool GetSoname(std::string*) override { return false; }
bool GetFunctionName(uint64_t, std::string*, uint64_t*) override;
bool GetGlobalVariable(const std::string&, uint64_t*) override;
bool Step(uint64_t, Regs*, Memory*, bool*) override;
void FakeSetGlobalVariable(const std::string& global, uint64_t offset) {
globals_[global] = offset;
}
static void FakePushFunctionData(const FunctionData data) { functions_.push_back(data); }
static void FakePushStepData(const StepData data) { steps_.push_back(data); }
static void FakeClear() {
functions_.clear();
steps_.clear();
}
void FakeSetErrorCode(ErrorCode code) { last_error_.code = code; }
void FakeSetErrorAddress(uint64_t address) { last_error_.address = address; }
private:
std::unordered_map<std::string, uint64_t> globals_;
static std::deque<FunctionData> functions_;
static std::deque<StepData> steps_;
};
class ElfInterface32Fake : public ElfInterface32 {
public:
ElfInterface32Fake(Memory* memory) : ElfInterface32(memory) {}
virtual ~ElfInterface32Fake() = default;
void FakeSetEhFrameOffset(uint64_t offset) { eh_frame_offset_ = offset; }
void FakeSetEhFrameSize(uint64_t size) { eh_frame_size_ = size; }
void FakeSetDebugFrameOffset(uint64_t offset) { debug_frame_offset_ = offset; }
void FakeSetDebugFrameSize(uint64_t size) { debug_frame_size_ = size; }
};
class ElfInterface64Fake : public ElfInterface64 {
public:
ElfInterface64Fake(Memory* memory) : ElfInterface64(memory) {}
virtual ~ElfInterface64Fake() = default;
void FakeSetEhFrameOffset(uint64_t offset) { eh_frame_offset_ = offset; }
void FakeSetEhFrameSize(uint64_t size) { eh_frame_size_ = size; }
void FakeSetDebugFrameOffset(uint64_t offset) { debug_frame_offset_ = offset; }
void FakeSetDebugFrameSize(uint64_t size) { debug_frame_size_ = size; }
};
class ElfInterfaceArmFake : public ElfInterfaceArm {
public:
ElfInterfaceArmFake(Memory* memory) : ElfInterfaceArm(memory) {}
virtual ~ElfInterfaceArmFake() = default;
void FakeSetStartOffset(uint64_t offset) { start_offset_ = offset; }
void FakeSetTotalEntries(size_t entries) { total_entries_ = entries; }
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_TESTS_ELF_FAKE_H
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