202 lines · cpp
1//===-- RegisterContextMinidumpTest.cpp -----------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "Plugins/Process/Utility/RegisterContextLinux_i386.h"10#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h"11#include "Plugins/Process/minidump/RegisterContextMinidump_x86_32.h"12#include "Plugins/Process/minidump/RegisterContextMinidump_x86_64.h"13#include "Plugins/Process/minidump/RegisterContextMinidump_ARM.h"14#include "lldb/Utility/DataBuffer.h"15#include "llvm/ADT/StringRef.h"16#include "gtest/gtest.h"17 18using namespace lldb_private;19using namespace lldb_private::minidump;20 21static uint32_t reg32(const DataBuffer &Buf, const RegisterInfo &Info) {22 return *reinterpret_cast<const uint32_t *>(Buf.GetBytes() + Info.byte_offset);23}24 25static uint64_t reg64(const DataBuffer &Buf, const RegisterInfo &Info) {26 return *reinterpret_cast<const uint64_t *>(Buf.GetBytes() + Info.byte_offset);27}28 29TEST(RegisterContextMinidump, ConvertMinidumpContext_x86_32) {30 MinidumpContext_x86_32 Context;31 Context.context_flags =32 static_cast<uint32_t>(MinidumpContext_x86_32_Flags::x86_32_Flag |33 MinidumpContext_x86_32_Flags::Control |34 MinidumpContext_x86_32_Flags::Segments |35 MinidumpContext_x86_32_Flags::Integer);36 Context.eax = 0x00010203;37 Context.ebx = 0x04050607;38 Context.ecx = 0x08090a0b;39 Context.edx = 0x0c0d0e0f;40 Context.edi = 0x10111213;41 Context.esi = 0x14151617;42 Context.ebp = 0x18191a1b;43 Context.esp = 0x1c1d1e1f;44 Context.eip = 0x20212223;45 Context.eflags = 0x24252627;46 Context.cs = 0x2829;47 Context.fs = 0x2a2b;48 Context.gs = 0x2c2d;49 Context.ss = 0x2e2f;50 Context.ds = 0x3031;51 Context.es = 0x3233;52 llvm::ArrayRef<uint8_t> ContextRef(reinterpret_cast<uint8_t *>(&Context),53 sizeof(Context));54 55 ArchSpec arch("i386-pc-linux");56 auto RegInterface = std::make_unique<RegisterContextLinux_i386>(arch);57 lldb::DataBufferSP Buf =58 ConvertMinidumpContext_x86_32(ContextRef, RegInterface.get());59 ASSERT_EQ(RegInterface->GetGPRSize(), Buf->GetByteSize());60 61 const RegisterInfo *Info = RegInterface->GetRegisterInfo();62 ASSERT_NE(nullptr, Info);63 64 EXPECT_EQ(Context.eax, reg32(*Buf, Info[lldb_eax_i386]));65 EXPECT_EQ(Context.ebx, reg32(*Buf, Info[lldb_ebx_i386]));66 EXPECT_EQ(Context.ecx, reg32(*Buf, Info[lldb_ecx_i386]));67 EXPECT_EQ(Context.edx, reg32(*Buf, Info[lldb_edx_i386]));68 EXPECT_EQ(Context.edi, reg32(*Buf, Info[lldb_edi_i386]));69 EXPECT_EQ(Context.esi, reg32(*Buf, Info[lldb_esi_i386]));70 EXPECT_EQ(Context.ebp, reg32(*Buf, Info[lldb_ebp_i386]));71 EXPECT_EQ(Context.esp, reg32(*Buf, Info[lldb_esp_i386]));72 EXPECT_EQ(Context.eip, reg32(*Buf, Info[lldb_eip_i386]));73 EXPECT_EQ(Context.eflags, reg32(*Buf, Info[lldb_eflags_i386]));74 EXPECT_EQ(Context.cs, reg32(*Buf, Info[lldb_cs_i386]));75 EXPECT_EQ(Context.fs, reg32(*Buf, Info[lldb_fs_i386]));76 EXPECT_EQ(Context.gs, reg32(*Buf, Info[lldb_gs_i386]));77 EXPECT_EQ(Context.ss, reg32(*Buf, Info[lldb_ss_i386]));78 EXPECT_EQ(Context.ds, reg32(*Buf, Info[lldb_ds_i386]));79 EXPECT_EQ(Context.es, reg32(*Buf, Info[lldb_es_i386]));80}81 82TEST(RegisterContextMinidump, ConvertMinidumpContext_x86_64) {83 MinidumpContext_x86_64 Context;84 Context.context_flags =85 static_cast<uint32_t>(MinidumpContext_x86_64_Flags::x86_64_Flag |86 MinidumpContext_x86_64_Flags::Control |87 MinidumpContext_x86_64_Flags::Segments |88 MinidumpContext_x86_64_Flags::Integer);89 Context.rax = 0x0001020304050607;90 Context.rbx = 0x08090a0b0c0d0e0f;91 Context.rcx = 0x1011121314151617;92 Context.rdx = 0x18191a1b1c1d1e1f;93 Context.rdi = 0x2021222324252627;94 Context.rsi = 0x28292a2b2c2d2e2f;95 Context.rbp = 0x3031323334353637;96 Context.rsp = 0x38393a3b3c3d3e3f;97 Context.r8 = 0x4041424344454647;98 Context.r9 = 0x48494a4b4c4d4e4f;99 Context.r10 = 0x5051525354555657;100 Context.r11 = 0x58595a5b5c5d5e5f;101 Context.r12 = 0x6061626364656667;102 Context.r13 = 0x68696a6b6c6d6e6f;103 Context.r14 = 0x7071727374757677;104 Context.r15 = 0x78797a7b7c7d7e7f;105 Context.rip = 0x8081828384858687;106 Context.eflags = 0x88898a8b;107 Context.cs = 0x8c8d;108 Context.fs = 0x8e8f;109 Context.gs = 0x9091;110 Context.ss = 0x9293;111 Context.ds = 0x9495;112 Context.es = 0x9697;113 llvm::ArrayRef<uint8_t> ContextRef(reinterpret_cast<uint8_t *>(&Context),114 sizeof(Context));115 116 ArchSpec arch("x86_64-pc-linux");117 auto RegInterface = std::make_unique<RegisterContextLinux_x86_64>(arch);118 lldb::DataBufferSP Buf =119 ConvertMinidumpContext_x86_64(ContextRef, RegInterface.get());120 ASSERT_EQ(RegInterface->GetGPRSize(), Buf->GetByteSize());121 122 const RegisterInfo *Info = RegInterface->GetRegisterInfo();123 EXPECT_EQ(Context.rax, reg64(*Buf, Info[lldb_rax_x86_64]));124 EXPECT_EQ(Context.rbx, reg64(*Buf, Info[lldb_rbx_x86_64]));125 EXPECT_EQ(Context.rcx, reg64(*Buf, Info[lldb_rcx_x86_64]));126 EXPECT_EQ(Context.rdx, reg64(*Buf, Info[lldb_rdx_x86_64]));127 EXPECT_EQ(Context.rdi, reg64(*Buf, Info[lldb_rdi_x86_64]));128 EXPECT_EQ(Context.rsi, reg64(*Buf, Info[lldb_rsi_x86_64]));129 EXPECT_EQ(Context.rbp, reg64(*Buf, Info[lldb_rbp_x86_64]));130 EXPECT_EQ(Context.rsp, reg64(*Buf, Info[lldb_rsp_x86_64]));131 EXPECT_EQ(Context.r8, reg64(*Buf, Info[lldb_r8_x86_64]));132 EXPECT_EQ(Context.r9, reg64(*Buf, Info[lldb_r9_x86_64]));133 EXPECT_EQ(Context.r10, reg64(*Buf, Info[lldb_r10_x86_64]));134 EXPECT_EQ(Context.r11, reg64(*Buf, Info[lldb_r11_x86_64]));135 EXPECT_EQ(Context.r12, reg64(*Buf, Info[lldb_r12_x86_64]));136 EXPECT_EQ(Context.r13, reg64(*Buf, Info[lldb_r13_x86_64]));137 EXPECT_EQ(Context.r14, reg64(*Buf, Info[lldb_r14_x86_64]));138 EXPECT_EQ(Context.r15, reg64(*Buf, Info[lldb_r15_x86_64]));139 EXPECT_EQ(Context.rip, reg64(*Buf, Info[lldb_rip_x86_64]));140 EXPECT_EQ(Context.eflags, reg64(*Buf, Info[lldb_rflags_x86_64]));141 EXPECT_EQ(Context.cs, reg64(*Buf, Info[lldb_cs_x86_64]));142 EXPECT_EQ(Context.fs, reg64(*Buf, Info[lldb_fs_x86_64]));143 EXPECT_EQ(Context.gs, reg64(*Buf, Info[lldb_gs_x86_64]));144 EXPECT_EQ(Context.ss, reg64(*Buf, Info[lldb_ss_x86_64]));145 EXPECT_EQ(Context.ds, reg64(*Buf, Info[lldb_ds_x86_64]));146 EXPECT_EQ(Context.es, reg64(*Buf, Info[lldb_es_x86_64]));147}148 149static void TestARMRegInfo(const lldb_private::RegisterInfo *info) {150 // Make sure we have valid register numbers for eRegisterKindEHFrame and151 // eRegisterKindDWARF for GPR registers r0-r15 so that we can unwind152 // correctly when using this information.153 llvm::StringRef name(info->name);154 llvm::StringRef alt_name(info->alt_name);155 if (name.starts_with("r") || alt_name.starts_with("r")) {156 EXPECT_NE(info->kinds[lldb::eRegisterKindEHFrame], LLDB_INVALID_REGNUM);157 EXPECT_NE(info->kinds[lldb::eRegisterKindDWARF], LLDB_INVALID_REGNUM);158 }159 // Verify generic register are set correctly160 if (name == "r0") {161 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],162 (uint32_t)LLDB_REGNUM_GENERIC_ARG1);163 } else if (name == "r1") {164 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],165 (uint32_t)LLDB_REGNUM_GENERIC_ARG2);166 } else if (name == "r2") {167 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],168 (uint32_t)LLDB_REGNUM_GENERIC_ARG3);169 } else if (name == "r3") {170 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],171 (uint32_t)LLDB_REGNUM_GENERIC_ARG4);172 } else if (name == "sp") {173 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],174 (uint32_t)LLDB_REGNUM_GENERIC_SP);175 } else if (name == "fp") {176 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],177 (uint32_t)LLDB_REGNUM_GENERIC_FP);178 } else if (name == "lr") {179 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],180 (uint32_t)LLDB_REGNUM_GENERIC_RA);181 } else if (name == "pc") {182 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],183 (uint32_t)LLDB_REGNUM_GENERIC_PC);184 } else if (name == "cpsr") {185 EXPECT_EQ(info->kinds[lldb::eRegisterKindGeneric],186 (uint32_t)LLDB_REGNUM_GENERIC_FLAGS);187 }188}189 190TEST(RegisterContextMinidump, CheckRegisterContextMinidump_ARM) {191 size_t num_regs = RegisterContextMinidump_ARM::GetRegisterCountStatic();192 const lldb_private::RegisterInfo *reg_info;193 for (size_t reg=0; reg<num_regs; ++reg) {194 reg_info = RegisterContextMinidump_ARM::GetRegisterInfoAtIndexStatic(reg,195 true);196 TestARMRegInfo(reg_info);197 reg_info = RegisterContextMinidump_ARM::GetRegisterInfoAtIndexStatic(reg,198 false);199 TestARMRegInfo(reg_info);200 }201}202