414df3e583
There are a few places where it is assumed that this register is
set to the cfa value when interpreting DWARF information.
Add a testcase for unwinding art_quick_osr_stub on ARM.
Bug: 73954823
Test: Ran libunwindstack/libbacktrace unit tests.
Test: Random debuggerd -b of process on a hikey.
Test: Ran the 137 art test on host.
Change-Id: Ida6ccdc38c3cfeea6b57fe861a0cc127b150b790
(cherry picked from commit 11e96fe48a)
93 lines
3 KiB
C++
93 lines
3 KiB
C++
/*
|
|
* Copyright (C) 2016 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_REGS_FAKE_H
|
|
#define _LIBUNWINDSTACK_TESTS_REGS_FAKE_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <unwindstack/Elf.h>
|
|
#include <unwindstack/Memory.h>
|
|
#include <unwindstack/Regs.h>
|
|
|
|
namespace unwindstack {
|
|
|
|
class RegsFake : public Regs {
|
|
public:
|
|
RegsFake(uint16_t total_regs) : Regs(total_regs, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
|
|
virtual ~RegsFake() = default;
|
|
|
|
ArchEnum Arch() override { return fake_arch_; }
|
|
void* RawData() override { return nullptr; }
|
|
uint64_t pc() override { return fake_pc_; }
|
|
uint64_t sp() override { return fake_sp_; }
|
|
void set_pc(uint64_t pc) override { fake_pc_ = pc; }
|
|
void set_sp(uint64_t sp) override { fake_sp_ = sp; }
|
|
|
|
bool SetPcFromReturnAddress(Memory*) override {
|
|
if (!fake_return_address_valid_) {
|
|
return false;
|
|
}
|
|
fake_pc_ = fake_return_address_;
|
|
return true;
|
|
}
|
|
|
|
void IterateRegisters(std::function<void(const char*, uint64_t)>) override {}
|
|
|
|
bool Is32Bit() { return false; }
|
|
|
|
uint64_t GetPcAdjustment(uint64_t, Elf*) override { return 2; }
|
|
|
|
bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
|
|
|
|
void FakeSetArch(ArchEnum arch) { fake_arch_ = arch; }
|
|
void FakeSetDexPc(uint64_t dex_pc) { dex_pc_ = dex_pc; }
|
|
void FakeSetReturnAddress(uint64_t return_address) { fake_return_address_ = return_address; }
|
|
void FakeSetReturnAddressValid(bool valid) { fake_return_address_valid_ = valid; }
|
|
|
|
private:
|
|
ArchEnum fake_arch_ = ARCH_UNKNOWN;
|
|
uint64_t fake_pc_ = 0;
|
|
uint64_t fake_sp_ = 0;
|
|
bool fake_return_address_valid_ = false;
|
|
uint64_t fake_return_address_ = 0;
|
|
};
|
|
|
|
template <typename TypeParam>
|
|
class RegsImplFake : public RegsImpl<TypeParam> {
|
|
public:
|
|
RegsImplFake(uint16_t total_regs)
|
|
: RegsImpl<TypeParam>(total_regs, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
|
|
virtual ~RegsImplFake() = default;
|
|
|
|
ArchEnum Arch() override { return ARCH_UNKNOWN; }
|
|
uint64_t pc() override { return fake_pc_; }
|
|
uint64_t sp() override { return fake_sp_; }
|
|
void set_pc(uint64_t pc) override { fake_pc_ = pc; }
|
|
void set_sp(uint64_t sp) override { fake_sp_ = sp; }
|
|
|
|
uint64_t GetPcAdjustment(uint64_t, Elf*) override { return 0; }
|
|
bool SetPcFromReturnAddress(Memory*) override { return false; }
|
|
bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
|
|
|
|
private:
|
|
uint64_t fake_pc_ = 0;
|
|
uint64_t fake_sp_ = 0;
|
|
};
|
|
|
|
} // namespace unwindstack
|
|
|
|
#endif // _LIBUNWINDSTACK_TESTS_REGS_FAKE_H
|