blob: d754fcc500874c765d425034eedd30c493d22399 [file] [log] [blame]
/*
* 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.
*/
#include <stdint.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <unwindstack/DwarfSection.h>
#include "MemoryFake.h"
namespace unwindstack {
class MockDwarfSection : public DwarfSection {
public:
MockDwarfSection(Memory* memory) : DwarfSection(memory) {}
virtual ~MockDwarfSection() = default;
MOCK_METHOD3(Init, bool(uint64_t, uint64_t, uint64_t));
MOCK_METHOD5(Eval, bool(const DwarfCie*, Memory*, const dwarf_loc_regs_t&, Regs*, bool*));
MOCK_METHOD3(Log, bool(uint8_t, uint64_t, const DwarfFde*));
MOCK_METHOD1(GetFdes, void(std::vector<const DwarfFde*>*));
MOCK_METHOD1(GetFdeFromPc, const DwarfFde*(uint64_t));
MOCK_METHOD3(GetCfaLocationInfo, bool(uint64_t, const DwarfFde*, dwarf_loc_regs_t*));
MOCK_METHOD1(GetCieOffsetFromFde32, uint64_t(uint32_t));
MOCK_METHOD1(GetCieOffsetFromFde64, uint64_t(uint64_t));
MOCK_METHOD1(AdjustPcFromFde, uint64_t(uint64_t));
};
class DwarfSectionTest : public ::testing::Test {
protected:
void SetUp() override { section_.reset(new MockDwarfSection(&memory_)); }
MemoryFake memory_;
std::unique_ptr<MockDwarfSection> section_;
};
TEST_F(DwarfSectionTest, Step_fail_fde) {
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(nullptr));
bool finished;
ASSERT_FALSE(section_->Step(0x1000, nullptr, nullptr, &finished));
}
TEST_F(DwarfSectionTest, Step_fail_cie_null) {
DwarfFde fde{};
fde.pc_end = 0x2000;
fde.cie = nullptr;
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(&fde));
bool finished;
ASSERT_FALSE(section_->Step(0x1000, nullptr, nullptr, &finished));
}
TEST_F(DwarfSectionTest, Step_fail_cfa_location) {
DwarfCie cie{};
DwarfFde fde{};
fde.pc_end = 0x2000;
fde.cie = &cie;
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(&fde));
EXPECT_CALL(*section_, GetCfaLocationInfo(0x1000, &fde, ::testing::_))
.WillOnce(::testing::Return(false));
bool finished;
ASSERT_FALSE(section_->Step(0x1000, nullptr, nullptr, &finished));
}
TEST_F(DwarfSectionTest, Step_pass) {
DwarfCie cie{};
DwarfFde fde{};
fde.pc_end = 0x2000;
fde.cie = &cie;
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(&fde));
EXPECT_CALL(*section_, GetCfaLocationInfo(0x1000, &fde, ::testing::_))
.WillOnce(::testing::Return(true));
MemoryFake process;
EXPECT_CALL(*section_, Eval(&cie, &process, ::testing::_, nullptr, ::testing::_))
.WillOnce(::testing::Return(true));
bool finished;
ASSERT_TRUE(section_->Step(0x1000, nullptr, &process, &finished));
}
static bool MockGetCfaLocationInfo(::testing::Unused, const DwarfFde* fde,
dwarf_loc_regs_t* loc_regs) {
loc_regs->pc_start = fde->pc_start;
loc_regs->pc_end = fde->pc_end;
return true;
}
TEST_F(DwarfSectionTest, Step_cache) {
DwarfCie cie{};
DwarfFde fde{};
fde.pc_start = 0x500;
fde.pc_end = 0x2000;
fde.cie = &cie;
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(&fde));
EXPECT_CALL(*section_, GetCfaLocationInfo(0x1000, &fde, ::testing::_))
.WillOnce(::testing::Invoke(MockGetCfaLocationInfo));
MemoryFake process;
EXPECT_CALL(*section_, Eval(&cie, &process, ::testing::_, nullptr, ::testing::_))
.WillRepeatedly(::testing::Return(true));
bool finished;
ASSERT_TRUE(section_->Step(0x1000, nullptr, &process, &finished));
ASSERT_TRUE(section_->Step(0x1000, nullptr, &process, &finished));
ASSERT_TRUE(section_->Step(0x1500, nullptr, &process, &finished));
}
TEST_F(DwarfSectionTest, Step_cache_not_in_pc) {
DwarfCie cie{};
DwarfFde fde0{};
fde0.pc_start = 0x1000;
fde0.pc_end = 0x2000;
fde0.cie = &cie;
EXPECT_CALL(*section_, GetFdeFromPc(0x1000)).WillOnce(::testing::Return(&fde0));
EXPECT_CALL(*section_, GetCfaLocationInfo(0x1000, &fde0, ::testing::_))
.WillOnce(::testing::Invoke(MockGetCfaLocationInfo));
MemoryFake process;
EXPECT_CALL(*section_, Eval(&cie, &process, ::testing::_, nullptr, ::testing::_))
.WillRepeatedly(::testing::Return(true));
bool finished;
ASSERT_TRUE(section_->Step(0x1000, nullptr, &process, &finished));
DwarfFde fde1{};
fde1.pc_start = 0x500;
fde1.pc_end = 0x800;
fde1.cie = &cie;
EXPECT_CALL(*section_, GetFdeFromPc(0x600)).WillOnce(::testing::Return(&fde1));
EXPECT_CALL(*section_, GetCfaLocationInfo(0x600, &fde1, ::testing::_))
.WillOnce(::testing::Invoke(MockGetCfaLocationInfo));
ASSERT_TRUE(section_->Step(0x600, nullptr, &process, &finished));
ASSERT_TRUE(section_->Step(0x700, nullptr, &process, &finished));
}
} // namespace unwindstack