| /* |
| * 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 <deque> |
| #include <ios> |
| #include <memory> |
| #include <string> |
| |
| #include <gtest/gtest.h> |
| |
| #include <unwindstack/Log.h> |
| #include <unwindstack/RegsArm.h> |
| |
| #include "ArmExidx.h" |
| |
| #include "LogFake.h" |
| #include "MemoryFake.h" |
| |
| namespace unwindstack { |
| |
| class ArmExidxDecodeTest : public ::testing::TestWithParam<std::string> { |
| protected: |
| void Init(Memory* process_memory = nullptr) { |
| if (process_memory == nullptr) { |
| process_memory = &process_memory_; |
| } |
| |
| regs_arm_.reset(new RegsArm()); |
| for (size_t i = 0; i < regs_arm_->total_regs(); i++) { |
| (*regs_arm_)[i] = 0; |
| } |
| regs_arm_->set_pc(0); |
| regs_arm_->set_sp(0); |
| |
| exidx_.reset(new ArmExidx(regs_arm_.get(), &elf_memory_, process_memory)); |
| if (log_ != ARM_LOG_NONE) { |
| exidx_->set_log(log_); |
| exidx_->set_log_indent(0); |
| exidx_->set_log_skip_execution(false); |
| } |
| data_ = exidx_->data(); |
| exidx_->set_cfa(0x10000); |
| } |
| |
| void SetUp() override { |
| if (GetParam() == "no_logging") { |
| log_ = ARM_LOG_NONE; |
| } else if (GetParam() == "register_logging") { |
| log_ = ARM_LOG_BY_REG; |
| } else { |
| log_ = ARM_LOG_FULL; |
| } |
| elf_memory_.Clear(); |
| process_memory_.Clear(); |
| ResetExidx(); |
| } |
| |
| void ResetExidx() { |
| ResetLogs(); |
| Init(); |
| } |
| |
| std::unique_ptr<ArmExidx> exidx_; |
| std::unique_ptr<RegsArm> regs_arm_; |
| std::deque<uint8_t>* data_; |
| |
| MemoryFake elf_memory_; |
| MemoryFake process_memory_; |
| ArmLogType log_; |
| }; |
| |
| TEST_P(ArmExidxDecodeTest, vsp_incr) { |
| // 00xxxxxx: vsp = vsp + (xxxxxx << 2) + 4 |
| data_->push_back(0x00); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 4\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 4\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10004U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->clear(); |
| data_->push_back(0x01); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 8\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 8\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->clear(); |
| data_->push_back(0x3f); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 256\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 256\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10100U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, vsp_decr) { |
| // 01xxxxxx: vsp = vsp - (xxxxxx << 2) + 4 |
| data_->push_back(0x40); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp - 4\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 - 4\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0xfffcU, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->clear(); |
| data_->push_back(0x41); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp - 8\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 - 8\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0xfff8U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->clear(); |
| data_->push_back(0x7f); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp - 256\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 - 256\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0xff00U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, refuse_unwind) { |
| // 10000000 00000000: Refuse to unwind |
| data_->push_back(0x80); |
| data_->push_back(0x00); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Refuse to unwind\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(ARM_STATUS_NO_UNWIND, exidx_->status()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_up_to_12) { |
| // 1000iiii iiiiiiii: Pop up to 12 integer registers |
| data_->push_back(0x88); |
| data_->push_back(0x00); |
| process_memory_.SetData32(0x10000, 0x10); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r15}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 4\n" |
| "4 unwind r15 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10004U, exidx_->cfa()); |
| ASSERT_EQ(0x10U, (*exidx_->regs())[15]); |
| |
| ResetExidx(); |
| data_->push_back(0x8f); |
| data_->push_back(0xff); |
| for (size_t i = 0; i < 12; i++) { |
| process_memory_.SetData32(0x10000 + i * 4, i + 0x20); |
| } |
| exidx_->set_pc_set(false); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15}\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 48\n" |
| "4 unwind r4 = [cfa - 48]\n" |
| "4 unwind r5 = [cfa - 44]\n" |
| "4 unwind r6 = [cfa - 40]\n" |
| "4 unwind r7 = [cfa - 36]\n" |
| "4 unwind r8 = [cfa - 32]\n" |
| "4 unwind r9 = [cfa - 28]\n" |
| "4 unwind r10 = [cfa - 24]\n" |
| "4 unwind r11 = [cfa - 20]\n" |
| "4 unwind r12 = [cfa - 16]\n" |
| "4 unwind r13 = [cfa - 12]\n" |
| "4 unwind r14 = [cfa - 8]\n" |
| "4 unwind r15 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| // Popping r13 results in a modified cfa. |
| ASSERT_EQ(0x29U, exidx_->cfa()); |
| |
| ASSERT_EQ(0x20U, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x21U, (*exidx_->regs())[5]); |
| ASSERT_EQ(0x22U, (*exidx_->regs())[6]); |
| ASSERT_EQ(0x23U, (*exidx_->regs())[7]); |
| ASSERT_EQ(0x24U, (*exidx_->regs())[8]); |
| ASSERT_EQ(0x25U, (*exidx_->regs())[9]); |
| ASSERT_EQ(0x26U, (*exidx_->regs())[10]); |
| ASSERT_EQ(0x27U, (*exidx_->regs())[11]); |
| ASSERT_EQ(0x28U, (*exidx_->regs())[12]); |
| ASSERT_EQ(0x29U, (*exidx_->regs())[13]); |
| ASSERT_EQ(0x2aU, (*exidx_->regs())[14]); |
| ASSERT_EQ(0x2bU, (*exidx_->regs())[15]); |
| |
| ResetExidx(); |
| exidx_->set_cfa(0x10034); |
| data_->push_back(0x81); |
| data_->push_back(0x28); |
| process_memory_.SetData32(0x10034, 0x11); |
| process_memory_.SetData32(0x10038, 0x22); |
| process_memory_.SetData32(0x1003c, 0x33); |
| exidx_->set_pc_set(false); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r7, r9, r12}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 12\n" |
| "4 unwind r7 = [cfa - 12]\n" |
| "4 unwind r9 = [cfa - 8]\n" |
| "4 unwind r12 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10040U, exidx_->cfa()); |
| ASSERT_EQ(0x11U, (*exidx_->regs())[7]); |
| ASSERT_EQ(0x22U, (*exidx_->regs())[9]); |
| ASSERT_EQ(0x33U, (*exidx_->regs())[12]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, set_vsp_from_register) { |
| // 1001nnnn: Set vsp = r[nnnn] (nnnn != 13, 15) |
| exidx_->set_cfa(0x100); |
| for (size_t i = 0; i < 15; i++) { |
| (*regs_arm_)[i] = i + 1; |
| } |
| |
| data_->push_back(0x90); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = r0\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r0\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(1U, exidx_->cfa()); |
| |
| ResetExidx(); |
| exidx_->set_cfa(0x100); |
| for (size_t i = 0; i < 15; i++) { |
| (*regs_arm_)[i] = i + 1; |
| } |
| data_->push_back(0x93); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = r3\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r3\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(4U, exidx_->cfa()); |
| |
| ResetExidx(); |
| exidx_->set_cfa(0x100); |
| for (size_t i = 0; i < 15; i++) { |
| (*regs_arm_)[i] = i + 1; |
| } |
| data_->push_back(0x9e); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = r14\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r14\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(15U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, reserved_prefix) { |
| // 10011101: Reserved as prefix for ARM register to register moves |
| data_->push_back(0x9d); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind [Reserved]\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(ARM_STATUS_RESERVED, exidx_->status()); |
| |
| // 10011111: Reserved as prefix for Intel Wireless MMX register to register moves |
| ResetExidx(); |
| data_->push_back(0x9f); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind [Reserved]\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(ARM_STATUS_RESERVED, exidx_->status()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_registers) { |
| // 10100nnn: Pop r4-r[4+nnn] |
| data_->push_back(0xa0); |
| process_memory_.SetData32(0x10000, 0x14); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 4\n" |
| "4 unwind r4 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10004U, exidx_->cfa()); |
| ASSERT_EQ(0x14U, (*exidx_->regs())[4]); |
| |
| ResetExidx(); |
| data_->push_back(0xa3); |
| process_memory_.SetData32(0x10000, 0x20); |
| process_memory_.SetData32(0x10004, 0x30); |
| process_memory_.SetData32(0x10008, 0x40); |
| process_memory_.SetData32(0x1000c, 0x50); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4-r7}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 16\n" |
| "4 unwind r4 = [cfa - 16]\n" |
| "4 unwind r5 = [cfa - 12]\n" |
| "4 unwind r6 = [cfa - 8]\n" |
| "4 unwind r7 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10010U, exidx_->cfa()); |
| ASSERT_EQ(0x20U, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x30U, (*exidx_->regs())[5]); |
| ASSERT_EQ(0x40U, (*exidx_->regs())[6]); |
| ASSERT_EQ(0x50U, (*exidx_->regs())[7]); |
| |
| ResetExidx(); |
| data_->push_back(0xa7); |
| process_memory_.SetData32(0x10000, 0x41); |
| process_memory_.SetData32(0x10004, 0x51); |
| process_memory_.SetData32(0x10008, 0x61); |
| process_memory_.SetData32(0x1000c, 0x71); |
| process_memory_.SetData32(0x10010, 0x81); |
| process_memory_.SetData32(0x10014, 0x91); |
| process_memory_.SetData32(0x10018, 0xa1); |
| process_memory_.SetData32(0x1001c, 0xb1); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4-r11}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 32\n" |
| "4 unwind r4 = [cfa - 32]\n" |
| "4 unwind r5 = [cfa - 28]\n" |
| "4 unwind r6 = [cfa - 24]\n" |
| "4 unwind r7 = [cfa - 20]\n" |
| "4 unwind r8 = [cfa - 16]\n" |
| "4 unwind r9 = [cfa - 12]\n" |
| "4 unwind r10 = [cfa - 8]\n" |
| "4 unwind r11 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10020U, exidx_->cfa()); |
| ASSERT_EQ(0x41U, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x51U, (*exidx_->regs())[5]); |
| ASSERT_EQ(0x61U, (*exidx_->regs())[6]); |
| ASSERT_EQ(0x71U, (*exidx_->regs())[7]); |
| ASSERT_EQ(0x81U, (*exidx_->regs())[8]); |
| ASSERT_EQ(0x91U, (*exidx_->regs())[9]); |
| ASSERT_EQ(0xa1U, (*exidx_->regs())[10]); |
| ASSERT_EQ(0xb1U, (*exidx_->regs())[11]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_registers_with_r14) { |
| // 10101nnn: Pop r4-r[4+nnn], r14 |
| data_->push_back(0xa8); |
| process_memory_.SetData32(0x10000, 0x12); |
| process_memory_.SetData32(0x10004, 0x22); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4, r14}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 8\n" |
| "4 unwind r4 = [cfa - 8]\n" |
| "4 unwind r14 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| ASSERT_EQ(0x12U, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x22U, (*exidx_->regs())[14]); |
| |
| ResetExidx(); |
| data_->push_back(0xab); |
| process_memory_.SetData32(0x10000, 0x1); |
| process_memory_.SetData32(0x10004, 0x2); |
| process_memory_.SetData32(0x10008, 0x3); |
| process_memory_.SetData32(0x1000c, 0x4); |
| process_memory_.SetData32(0x10010, 0x5); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4-r7, r14}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 20\n" |
| "4 unwind r4 = [cfa - 20]\n" |
| "4 unwind r5 = [cfa - 16]\n" |
| "4 unwind r6 = [cfa - 12]\n" |
| "4 unwind r7 = [cfa - 8]\n" |
| "4 unwind r14 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10014U, exidx_->cfa()); |
| ASSERT_EQ(0x1U, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x2U, (*exidx_->regs())[5]); |
| ASSERT_EQ(0x3U, (*exidx_->regs())[6]); |
| ASSERT_EQ(0x4U, (*exidx_->regs())[7]); |
| ASSERT_EQ(0x5U, (*exidx_->regs())[14]); |
| |
| ResetExidx(); |
| data_->push_back(0xaf); |
| process_memory_.SetData32(0x10000, 0x1a); |
| process_memory_.SetData32(0x10004, 0x2a); |
| process_memory_.SetData32(0x10008, 0x3a); |
| process_memory_.SetData32(0x1000c, 0x4a); |
| process_memory_.SetData32(0x10010, 0x5a); |
| process_memory_.SetData32(0x10014, 0x6a); |
| process_memory_.SetData32(0x10018, 0x7a); |
| process_memory_.SetData32(0x1001c, 0x8a); |
| process_memory_.SetData32(0x10020, 0x9a); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r4-r11, r14}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 36\n" |
| "4 unwind r4 = [cfa - 36]\n" |
| "4 unwind r5 = [cfa - 32]\n" |
| "4 unwind r6 = [cfa - 28]\n" |
| "4 unwind r7 = [cfa - 24]\n" |
| "4 unwind r8 = [cfa - 20]\n" |
| "4 unwind r9 = [cfa - 16]\n" |
| "4 unwind r10 = [cfa - 12]\n" |
| "4 unwind r11 = [cfa - 8]\n" |
| "4 unwind r14 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10024U, exidx_->cfa()); |
| ASSERT_EQ(0x1aU, (*exidx_->regs())[4]); |
| ASSERT_EQ(0x2aU, (*exidx_->regs())[5]); |
| ASSERT_EQ(0x3aU, (*exidx_->regs())[6]); |
| ASSERT_EQ(0x4aU, (*exidx_->regs())[7]); |
| ASSERT_EQ(0x5aU, (*exidx_->regs())[8]); |
| ASSERT_EQ(0x6aU, (*exidx_->regs())[9]); |
| ASSERT_EQ(0x7aU, (*exidx_->regs())[10]); |
| ASSERT_EQ(0x8aU, (*exidx_->regs())[11]); |
| ASSERT_EQ(0x9aU, (*exidx_->regs())[14]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, finish) { |
| // 10110000: Finish |
| data_->push_back(0xb0); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind finish\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()); |
| ASSERT_EQ(ARM_STATUS_FINISH, exidx_->status()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, spare) { |
| // 10110001 00000000: Spare |
| data_->push_back(0xb1); |
| data_->push_back(0x00); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()); |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| |
| // 10110001 xxxxyyyy: Spare (xxxx != 0000) |
| for (size_t x = 1; x < 16; x++) { |
| for (size_t y = 0; y < 16; y++) { |
| ResetExidx(); |
| data_->push_back(0xb1); |
| data_->push_back((x << 4) | y); |
| ASSERT_FALSE(exidx_->Decode()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ("", GetFakeLogBuf()) << "x, y = " << x << ", " << y; |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()) << "x, y = " << x << ", " << y; |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| } |
| } |
| |
| // 101101nn: Spare |
| for (size_t n = 0; n < 4; n++) { |
| ResetExidx(); |
| data_->push_back(0xb4 | n); |
| ASSERT_FALSE(exidx_->Decode()) << "n = " << n; |
| ASSERT_EQ("", GetFakeLogBuf()) << "n = " << n; |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()) << "n = " << n; |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()) << "n = " << n; |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| } |
| |
| // 11000111 00000000: Spare |
| ResetExidx(); |
| data_->push_back(0xc7); |
| data_->push_back(0x00); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()); |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| |
| // 11000111 xxxxyyyy: Spare (xxxx != 0000) |
| for (size_t x = 1; x < 16; x++) { |
| for (size_t y = 0; y < 16; y++) { |
| ResetExidx(); |
| data_->push_back(0xc7); |
| data_->push_back(0x10); |
| ASSERT_FALSE(exidx_->Decode()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ("", GetFakeLogBuf()) << "x, y = " << x << ", " << y; |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()) << "x, y = " << x << ", " << y; |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| } |
| } |
| |
| // 11001yyy: Spare (yyy != 000, 001) |
| for (size_t y = 2; y < 8; y++) { |
| ResetExidx(); |
| data_->push_back(0xc8 | y); |
| ASSERT_FALSE(exidx_->Decode()) << "y = " << y; |
| ASSERT_EQ("", GetFakeLogBuf()) << "y = " << y; |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()) << "y = " << y; |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()) << "y = " << y; |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| } |
| |
| // 11xxxyyy: Spare (xxx != 000, 001, 010) |
| for (size_t x = 3; x < 8; x++) { |
| for (size_t y = 0; y < 8; y++) { |
| ResetExidx(); |
| data_->push_back(0xc0 | (x << 3) | y); |
| ASSERT_FALSE(exidx_->Decode()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ("", GetFakeLogBuf()) << "x, y = " << x << ", " << y; |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Spare\n", GetFakeLogPrint()) << "x, y = " << x << ", " << y; |
| break; |
| } |
| ASSERT_EQ(0x10000U, exidx_->cfa()) << "x, y = " << x << ", " << y; |
| ASSERT_EQ(ARM_STATUS_SPARE, exidx_->status()); |
| } |
| } |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_registers_under_mask) { |
| // 10110001 0000iiii: Pop integer registers {r0, r1, r2, r3} |
| data_->push_back(0xb1); |
| data_->push_back(0x01); |
| process_memory_.SetData32(0x10000, 0x45); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r0}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 4\n" |
| "4 unwind r0 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10004U, exidx_->cfa()); |
| ASSERT_EQ(0x45U, (*exidx_->regs())[0]); |
| |
| ResetExidx(); |
| data_->push_back(0xb1); |
| data_->push_back(0x0a); |
| process_memory_.SetData32(0x10000, 0x23); |
| process_memory_.SetData32(0x10004, 0x24); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r1, r3}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 8\n" |
| "4 unwind r1 = [cfa - 8]\n" |
| "4 unwind r3 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| ASSERT_EQ(0x23U, (*exidx_->regs())[1]); |
| ASSERT_EQ(0x24U, (*exidx_->regs())[3]); |
| |
| ResetExidx(); |
| data_->push_back(0xb1); |
| data_->push_back(0x0f); |
| process_memory_.SetData32(0x10000, 0x65); |
| process_memory_.SetData32(0x10004, 0x54); |
| process_memory_.SetData32(0x10008, 0x43); |
| process_memory_.SetData32(0x1000c, 0x32); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {r0, r1, r2, r3}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 16\n" |
| "4 unwind r0 = [cfa - 16]\n" |
| "4 unwind r1 = [cfa - 12]\n" |
| "4 unwind r2 = [cfa - 8]\n" |
| "4 unwind r3 = [cfa - 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10010U, exidx_->cfa()); |
| ASSERT_EQ(0x65U, (*exidx_->regs())[0]); |
| ASSERT_EQ(0x54U, (*exidx_->regs())[1]); |
| ASSERT_EQ(0x43U, (*exidx_->regs())[2]); |
| ASSERT_EQ(0x32U, (*exidx_->regs())[3]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, vsp_large_incr) { |
| // 10110010 uleb128: vsp = vsp + 0x204 + (uleb128 << 2) |
| data_->push_back(0xb2); |
| data_->push_back(0x7f); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 1024\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 1024\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10400U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xb2); |
| data_->push_back(0xff); |
| data_->push_back(0x02); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 2048\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 2048\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10800U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xb2); |
| data_->push_back(0xff); |
| data_->push_back(0x82); |
| data_->push_back(0x30); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind vsp = vsp + 3147776\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 3147776\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x310800U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_vfp_fstmfdx) { |
| // 10110011 sssscccc: Pop VFP double precision registers D[ssss]-D[ssss+cccc] by FSTMFDX |
| data_->push_back(0xb3); |
| data_->push_back(0x00); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d0}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x1000cU, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xb3); |
| data_->push_back(0x48); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d4-d12}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x1004cU, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_vfp8_fstmfdx) { |
| // 10111nnn: Pop VFP double precision registers D[8]-D[8+nnn] by FSTMFDX |
| data_->push_back(0xb8); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x1000cU, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xbb); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8-d11}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10024U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xbf); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8-d15}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10044U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_mmx_wr10) { |
| // 11000nnn: Intel Wireless MMX pop wR[10]-wR[10+nnn] (nnn != 6, 7) |
| data_->push_back(0xc0); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR10}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc2); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR10-wR12}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10018U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc5); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR10-wR15}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10030U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_mmx_wr) { |
| // 11000110 sssscccc: Intel Wireless MMX pop wR[ssss]-wR[ssss+cccc] |
| data_->push_back(0xc6); |
| data_->push_back(0x00); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR0}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc6); |
| data_->push_back(0x25); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR2-wR7}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10030U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc6); |
| data_->push_back(0xff); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wR15-wR30}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wRX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10080U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_mmx_wcgr) { |
| // 11000111 0000iiii: Intel Wireless MMX pop wCGR registes {wCGR0,1,2,3} |
| data_->push_back(0xc7); |
| data_->push_back(0x01); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wCGR0}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wCGR register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10004U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc7); |
| data_->push_back(0x0a); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wCGR1, wCGR3}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wCGR register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc7); |
| data_->push_back(0x0f); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {wCGR0, wCGR1, wCGR2, wCGR3}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported wCGR register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10010U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_vfp16_vpush) { |
| // 11001000 sssscccc: Pop VFP double precision registers d[16+ssss]-D[16+ssss+cccc] by VPUSH |
| data_->push_back(0xc8); |
| data_->push_back(0x00); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d16}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc8); |
| data_->push_back(0x14); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d17-d21}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10028U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc8); |
| data_->push_back(0xff); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d31-d46}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10080U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_vfp_vpush) { |
| // 11001001 sssscccc: Pop VFP double precision registers d[ssss]-D[ssss+cccc] by VPUSH |
| data_->push_back(0xc9); |
| data_->push_back(0x00); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d0}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc9); |
| data_->push_back(0x23); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d2-d5}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10020U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xc9); |
| data_->push_back(0xff); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d15-d30}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10080U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, pop_vfp8_vpush) { |
| // 11010nnn: Pop VFP double precision registers D[8]-D[8+nnn] by VPUSH |
| data_->push_back(0xd0); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10008U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xd2); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8-d10}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10018U, exidx_->cfa()); |
| |
| ResetExidx(); |
| data_->push_back(0xd7); |
| ASSERT_TRUE(exidx_->Decode()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| ASSERT_EQ("", GetFakeLogBuf()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ("4 unwind pop {d8-d15}\n", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| ASSERT_EQ("4 unwind Unsupported DX register display\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10040U, exidx_->cfa()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, expect_truncated) { |
| // This test verifies that any op that requires extra ops will |
| // fail if the data is not present. |
| data_->push_back(0x80); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xb1); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xb2); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xb3); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xc6); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xc7); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xc8); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| |
| data_->clear(); |
| data_->push_back(0xc9); |
| ASSERT_FALSE(exidx_->Decode()); |
| ASSERT_EQ(ARM_STATUS_TRUNCATED, exidx_->status()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, verify_no_truncated) { |
| // This test verifies that no pattern results in a crash or truncation. |
| MemoryFakeAlwaysReadZero memory_zero; |
| Init(&memory_zero); |
| |
| for (size_t x = 0; x < 256; x++) { |
| if (x == 0xb2) { |
| // This opcode is followed by an uleb128, so just skip this one. |
| continue; |
| } |
| for (size_t y = 0; y < 256; y++) { |
| data_->clear(); |
| data_->push_back(x); |
| data_->push_back(y); |
| if (!exidx_->Decode()) { |
| ASSERT_NE(ARM_STATUS_TRUNCATED, exidx_->status()) |
| << "x y = 0x" << std::hex << x << " 0x" << y; |
| ASSERT_NE(ARM_STATUS_READ_FAILED, exidx_->status()) |
| << "x y = 0x" << std::hex << x << " 0x" << y; |
| } |
| } |
| } |
| } |
| |
| TEST_P(ArmExidxDecodeTest, eval_multiple_decodes) { |
| // vsp = vsp + 4 |
| data_->push_back(0x00); |
| // vsp = vsp + 12 |
| data_->push_back(0x02); |
| // Finish |
| data_->push_back(0xb0); |
| |
| ASSERT_TRUE(exidx_->Eval()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ( |
| "4 unwind vsp = vsp + 4\n" |
| "4 unwind vsp = vsp + 12\n" |
| "4 unwind finish\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ("4 unwind cfa = r13 + 16\n", GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10010U, exidx_->cfa()); |
| ASSERT_FALSE(exidx_->pc_set()); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, eval_vsp_add_after_pop) { |
| // Pop {r15} |
| data_->push_back(0x88); |
| data_->push_back(0x00); |
| // vsp = vsp + 12 |
| data_->push_back(0x02); |
| // Finish |
| data_->push_back(0xb0); |
| process_memory_.SetData32(0x10000, 0x10); |
| |
| ASSERT_TRUE(exidx_->Eval()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ( |
| "4 unwind pop {r15}\n" |
| "4 unwind vsp = vsp + 12\n" |
| "4 unwind finish\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 16\n" |
| "4 unwind r15 = [cfa - 16]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10010U, exidx_->cfa()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ(0x10U, (*exidx_->regs())[15]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, eval_vsp_add_large_after_pop) { |
| // Pop {r15} |
| data_->push_back(0x88); |
| data_->push_back(0x00); |
| // vsp = vsp + 1024 |
| data_->push_back(0xb2); |
| data_->push_back(0x7f); |
| // Finish |
| data_->push_back(0xb0); |
| process_memory_.SetData32(0x10000, 0x10); |
| |
| ASSERT_TRUE(exidx_->Eval()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ( |
| "4 unwind pop {r15}\n" |
| "4 unwind vsp = vsp + 1024\n" |
| "4 unwind finish\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 1028\n" |
| "4 unwind r15 = [cfa - 1028]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10404U, exidx_->cfa()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ(0x10U, (*exidx_->regs())[15]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, eval_vsp_sub_after_pop) { |
| // Pop {r15} |
| data_->push_back(0x88); |
| data_->push_back(0x00); |
| // vsp = vsp - 4 |
| data_->push_back(0x41); |
| // Finish |
| data_->push_back(0xb0); |
| process_memory_.SetData32(0x10000, 0x10); |
| |
| ASSERT_TRUE(exidx_->Eval()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ( |
| "4 unwind pop {r15}\n" |
| "4 unwind vsp = vsp - 8\n" |
| "4 unwind finish\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 - 4\n" |
| "4 unwind r15 = [cfa + 4]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0xfffcU, exidx_->cfa()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ(0x10U, (*exidx_->regs())[15]); |
| } |
| |
| TEST_P(ArmExidxDecodeTest, eval_pc_set) { |
| // vsp = vsp + 4 |
| data_->push_back(0x00); |
| // vsp = vsp + 12 |
| data_->push_back(0x02); |
| // Pop {r15} |
| data_->push_back(0x88); |
| data_->push_back(0x00); |
| // vsp = vsp + 12 |
| data_->push_back(0x02); |
| // Finish |
| data_->push_back(0xb0); |
| |
| process_memory_.SetData32(0x10010, 0x10); |
| |
| ASSERT_TRUE(exidx_->Eval()); |
| switch (log_) { |
| case ARM_LOG_NONE: |
| ASSERT_EQ("", GetFakeLogPrint()); |
| break; |
| case ARM_LOG_FULL: |
| ASSERT_EQ( |
| "4 unwind vsp = vsp + 4\n" |
| "4 unwind vsp = vsp + 12\n" |
| "4 unwind pop {r15}\n" |
| "4 unwind vsp = vsp + 12\n" |
| "4 unwind finish\n", |
| GetFakeLogPrint()); |
| break; |
| case ARM_LOG_BY_REG: |
| exidx_->LogByReg(); |
| ASSERT_EQ( |
| "4 unwind cfa = r13 + 32\n" |
| "4 unwind r15 = [cfa - 16]\n", |
| GetFakeLogPrint()); |
| break; |
| } |
| ASSERT_EQ(0x10020U, exidx_->cfa()); |
| ASSERT_TRUE(exidx_->pc_set()); |
| ASSERT_EQ(0x10U, (*exidx_->regs())[15]); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(Unwindstack, ArmExidxDecodeTest, |
| ::testing::Values("logging", "register_logging", "no_logging")); |
| |
| } // namespace unwindstack |