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118 lines
3.6 KiB
118 lines
3.6 KiB
/*
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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_TESTS_REGS_FAKE_H
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#define _LIBUNWINDSTACK_TESTS_REGS_FAKE_H
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#include <stdint.h>
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#include <unwindstack/Elf.h>
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#include <unwindstack/Memory.h>
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#include <unwindstack/Regs.h>
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#include "Check.h"
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namespace unwindstack {
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class RegsFake : public Regs {
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public:
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RegsFake(uint16_t total_regs) : Regs(total_regs, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
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virtual ~RegsFake() = default;
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ArchEnum Arch() override { return fake_arch_; }
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void* RawData() override { return nullptr; }
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uint64_t pc() override { return fake_pc_; }
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uint64_t sp() override { return fake_sp_; }
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void set_pc(uint64_t pc) override { fake_pc_ = pc; }
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void set_sp(uint64_t sp) override { fake_sp_ = sp; }
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bool SetPcFromReturnAddress(Memory*) override {
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if (!fake_return_address_valid_) {
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return false;
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}
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fake_pc_ = fake_return_address_;
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return true;
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}
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void IterateRegisters(std::function<void(const char*, uint64_t)>) override {}
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bool Is32Bit() {
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CHECK(fake_arch_ != ARCH_UNKNOWN);
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return fake_arch_ == ARCH_ARM || fake_arch_ == ARCH_X86 || fake_arch_ == ARCH_MIPS;
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}
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bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
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void FakeSetArch(ArchEnum arch) { fake_arch_ = arch; }
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void FakeSetDexPc(uint64_t dex_pc) { dex_pc_ = dex_pc; }
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void FakeSetReturnAddress(uint64_t return_address) { fake_return_address_ = return_address; }
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void FakeSetReturnAddressValid(bool valid) { fake_return_address_valid_ = valid; }
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Regs* Clone() override { return nullptr; }
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private:
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ArchEnum fake_arch_ = ARCH_UNKNOWN;
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uint64_t fake_pc_ = 0;
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uint64_t fake_sp_ = 0;
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bool fake_return_address_valid_ = false;
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uint64_t fake_return_address_ = 0;
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};
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template <typename TypeParam>
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class RegsImplFake : public RegsImpl<TypeParam> {
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public:
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RegsImplFake(uint16_t total_regs)
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: RegsImpl<TypeParam>(total_regs, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
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virtual ~RegsImplFake() = default;
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ArchEnum Arch() override { return ARCH_UNKNOWN; }
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uint64_t pc() override { return fake_pc_; }
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uint64_t sp() override { return fake_sp_; }
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void set_pc(uint64_t pc) override { fake_pc_ = pc; }
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void set_sp(uint64_t sp) override { fake_sp_ = sp; }
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void set_pseudo_reg(uint64_t reg) { fake_pseudo_reg_ = reg; }
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bool SetPcFromReturnAddress(Memory*) override { return false; }
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bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
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bool SetPseudoRegister(uint16_t reg, uint64_t value) override {
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if (fake_pseudo_reg_ != reg) {
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return false;
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}
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fake_pseudo_reg_value_ = value;
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return true;
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}
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bool GetPseudoRegister(uint16_t reg, uint64_t* value) override {
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if (fake_pseudo_reg_ != reg) {
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return false;
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}
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*value = fake_pseudo_reg_value_;
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return true;
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}
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Regs* Clone() override { return nullptr; }
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private:
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uint64_t fake_pc_ = 0;
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uint64_t fake_sp_ = 0;
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uint16_t fake_pseudo_reg_ = 0;
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uint64_t fake_pseudo_reg_value_ = 0;
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};
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_TESTS_REGS_FAKE_H
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