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-exception
6//
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>(args&: arch);
57 lldb::DataBufferSP Buf =
58 ConvertMinidumpContext_x86_32(source_data: ContextRef, target_reg_interface: 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>(args&: arch);
118 lldb::DataBufferSP Buf =
119 ConvertMinidumpContext_x86_64(source_data: ContextRef, target_reg_interface: 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 and
151 // eRegisterKindDWARF for GPR registers r0-r15 so that we can unwind
152 // correctly when using this information.
153 llvm::StringRef name(info->name);
154 llvm::StringRef alt_name(info->alt_name);
155 if (name.starts_with(Prefix: "r") || alt_name.starts_with(Prefix: "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 correctly
160 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 apple: true);
196 TestARMRegInfo(info: reg_info);
197 reg_info = RegisterContextMinidump_ARM::GetRegisterInfoAtIndexStatic(reg,
198 apple: false);
199 TestARMRegInfo(info: reg_info);
200 }
201}
202

source code of lldb/unittests/Process/minidump/RegisterContextMinidumpTest.cpp