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llvm-project/lldb/unittests/ObjectFile/PECOFF/TestPECallFrameInfo.cpp

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//===-- TestPECallFrameInfo.cpp -------------------------------------------===//
//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h"
#include "Plugins/Process/Utility/lldb-x86-register-enums.h"
#include "TestingSupport/SubsystemRAII.h"
#include "TestingSupport/TestUtilities.h"
#include "lldb/Core/Module.h"
#include "lldb/Symbol/CallFrameInfo.h"
#include "lldb/Symbol/UnwindPlan.h"
#include "llvm/Testing/Support/Error.h"
using namespace lldb_private;
using namespace lldb;
class PECallFrameInfoTest : public testing::Test {
SubsystemRAII<FileSystem, ObjectFilePECOFF> subsystems;
protected:
void GetUnwindPlan(addr_t file_addr, UnwindPlan &plan) const;
};
void PECallFrameInfoTest::GetUnwindPlan(addr_t file_addr, UnwindPlan &plan) const {
llvm::Expected<TestFile> ExpectedFile = TestFile::fromYaml(
R"(
--- !COFF
OptionalHeader:
AddressOfEntryPoint: 0
ImageBase: 16777216
SectionAlignment: 4096
FileAlignment: 512
MajorOperatingSystemVersion: 6
MinorOperatingSystemVersion: 0
MajorImageVersion: 0
MinorImageVersion: 0
MajorSubsystemVersion: 6
MinorSubsystemVersion: 0
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI
DLLCharacteristics: [ IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ]
SizeOfStackReserve: 1048576
SizeOfStackCommit: 4096
SizeOfHeapReserve: 1048576
SizeOfHeapCommit: 4096
ExportTable:
RelativeVirtualAddress: 0
Size: 0
ImportTable:
RelativeVirtualAddress: 0
Size: 0
ResourceTable:
RelativeVirtualAddress: 0
Size: 0
ExceptionTable:
RelativeVirtualAddress: 12288
Size: 60
CertificateTable:
RelativeVirtualAddress: 0
Size: 0
BaseRelocationTable:
RelativeVirtualAddress: 0
Size: 0
Debug:
RelativeVirtualAddress: 0
Size: 0
Architecture:
RelativeVirtualAddress: 0
Size: 0
GlobalPtr:
RelativeVirtualAddress: 0
Size: 0
TlsTable:
RelativeVirtualAddress: 0
Size: 0
LoadConfigTable:
RelativeVirtualAddress: 0
Size: 0
BoundImport:
RelativeVirtualAddress: 0
Size: 0
IAT:
RelativeVirtualAddress: 0
Size: 0
DelayImportDescriptor:
RelativeVirtualAddress: 0
Size: 0
ClrRuntimeHeader:
RelativeVirtualAddress: 0
Size: 0
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: [ IMAGE_FILE_EXECUTABLE_IMAGE, IMAGE_FILE_LARGE_ADDRESS_AWARE ]
sections:
- Name: .text
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
VirtualAddress: 4096
VirtualSize: 4096
- Name: .rdata
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
VirtualAddress: 8192
VirtualSize: 68
SectionData: 010C06000C3208F006E00470036002302105020005540D0000100000001100000020000019400E352F74670028646600213465001A3315015E000EF00CE00AD008C00650
# Unwind info at 0x2000:
# 01 0C 06 00 No chained info, prolog size = 0xC, unwind codes size is 6 words, no frame register
# 0C 32 UOP_AllocSmall(2) 3 * 8 + 8 bytes, offset in prolog is 0xC
# 08 F0 UOP_PushNonVol(0) R15(0xF), offset in prolog is 8
# 06 E0 UOP_PushNonVol(0) R14(0xE), offset in prolog is 6
# 04 70 UOP_PushNonVol(0) RDI(7), offset in prolog is 4
# 03 60 UOP_PushNonVol(0) RSI(6), offset in prolog is 3
# 02 30 UOP_PushNonVol(0) RBX(3), offset in prolog is 2
# Corresponding prolog:
# 00 push rbx
# 02 push rsi
# 03 push rdi
# 04 push r14
# 06 push r15
# 08 sub rsp, 20h
# Unwind info at 0x2010:
# 21 05 02 00 Has chained info, prolog size = 5, unwind codes size is 2 words, no frame register
# 05 54 0D 00 UOP_SaveNonVol(4) RBP(5) to RSP + 0xD * 8, offset in prolog is 5
# Chained runtime function:
# 00 10 00 00 Start address is 0x1000
# 00 11 00 00 End address is 0x1100
# 00 20 00 00 Unwind info RVA is 0x2000
# Corresponding prolog:
# 00 mov [rsp+68h], rbp
# Unwind info at 0x2024:
# 19 40 0E 35 No chained info, prolog size = 0x40, unwind codes size is 0xE words, frame register is RBP, frame register offset is RSP + 3 * 16
# 2F 74 67 00 UOP_SaveNonVol(4) RDI(7) to RSP + 0x67 * 8, offset in prolog is 0x2F
# 28 64 66 00 UOP_SaveNonVol(4) RSI(6) to RSP + 0x66 * 8, offset in prolog is 0x28
# 21 34 65 00 UOP_SaveNonVol(4) RBX(3) to RSP + 0x65 * 8, offset in prolog is 0x21
# 1A 33 UOP_SetFPReg(3), offset in prolog is 0x1A
# 15 01 5E 00 UOP_AllocLarge(1) 0x5E * 8 bytes, offset in prolog is 0x15
# 0E F0 UOP_PushNonVol(0) R15(0xF), offset in prolog is 0xE
# 0C E0 UOP_PushNonVol(0) R14(0xE), offset in prolog is 0xC
# 0A D0 UOP_PushNonVol(0) R13(0xD), offset in prolog is 0xA
# 08 C0 UOP_PushNonVol(0) R12(0xC), offset in prolog is 8
# 06 50 UOP_PushNonVol(0) RBP(5), offset in prolog is 6
# Corresponding prolog:
# 00 mov [rsp+8], rcx
# 05 push rbp
# 06 push r12
# 08 push r13
# 0A push r14
# 0C push r15
# 0E sub rsp, 2F0h
# 15 lea rbp, [rsp+30h]
# 1A mov [rbp+2F8h], rbx
# 21 mov [rbp+300h], rsi
# 28 mov [rbp+308h], rdi
- Name: .pdata
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
VirtualAddress: 12288
VirtualSize: 60
SectionData: 000000000000000000000000000000000000000000000000001000000011000000200000001100000012000010200000001200000013000024200000
# 00 00 00 00
# 00 00 00 00 Test correct processing of empty runtime functions at begin
# 00 00 00 00
# 00 00 00 00
# 00 00 00 00 Test correct processing of empty runtime functions at begin
# 00 00 00 00
# 00 10 00 00 Start address is 0x1000
# 00 11 00 00 End address is 0x1100
# 00 20 00 00 Unwind info RVA is 0x2000
# 00 11 00 00 Start address is 0x1100
# 00 12 00 00 End address is 0x1200
# 10 20 00 00 Unwind info RVA is 0x2010
# 00 12 00 00 Start address is 0x1200
# 00 13 00 00 End address is 0x1300
# 24 20 00 00 Unwind info RVA is 0x2024
symbols: []
...
)");
ASSERT_THAT_EXPECTED(ExpectedFile, llvm::Succeeded());
ModuleSP module_sp = std::make_shared<Module>(ModuleSpec(FileSpec(ExpectedFile->name())));
ObjectFile *object_file = module_sp->GetObjectFile();
ASSERT_NE(object_file, nullptr);
std::unique_ptr<CallFrameInfo> cfi = object_file->CreateCallFrameInfo();
ASSERT_NE(cfi.get(), nullptr);
SectionList *sect_list = object_file->GetSectionList();
ASSERT_NE(sect_list, nullptr);
EXPECT_TRUE(cfi->GetUnwindPlan(Address(file_addr, sect_list), plan));
}
TEST_F(PECallFrameInfoTest, Basic_eh) {
UnwindPlan plan(eRegisterKindLLDB);
GetUnwindPlan(0x1001080, plan);
EXPECT_EQ(plan.GetRowCount(), 7);
UnwindPlan::Row row;
row.SetOffset(0);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 8);
row.SetRegisterLocationToIsCFAPlusOffset(lldb_rsp_x86_64, 0, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rip_x86_64, -8, true);
EXPECT_EQ(*plan.GetRowAtIndex(0), row);
row.SetOffset(2);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x10);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rbx_x86_64, -0x10, true);
EXPECT_EQ(*plan.GetRowAtIndex(1), row);
row.SetOffset(3);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x18);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rsi_x86_64, -0x18, true);
EXPECT_EQ(*plan.GetRowAtIndex(2), row);
row.SetOffset(4);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x20);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rdi_x86_64, -0x20, true);
EXPECT_EQ(*plan.GetRowAtIndex(3), row);
row.SetOffset(6);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x28);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r14_x86_64, -0x28, true);
EXPECT_EQ(*plan.GetRowAtIndex(4), row);
row.SetOffset(8);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x30);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r15_x86_64, -0x30, true);
EXPECT_EQ(*plan.GetRowAtIndex(5), row);
row.SetOffset(0xC);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x50);
EXPECT_EQ(*plan.GetRowAtIndex(6), row);
}
TEST_F(PECallFrameInfoTest, Chained_eh) {
UnwindPlan plan(eRegisterKindLLDB);
GetUnwindPlan(0x1001180, plan);
EXPECT_EQ(plan.GetRowCount(), 2);
UnwindPlan::Row row;
row.SetOffset(0);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x50);
row.SetRegisterLocationToIsCFAPlusOffset(lldb_rsp_x86_64, 0, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rip_x86_64, -8, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rbx_x86_64, -0x10, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rsi_x86_64, -0x18, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rdi_x86_64, -0x20, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r14_x86_64, -0x28, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r15_x86_64, -0x30, true);
EXPECT_EQ(*plan.GetRowAtIndex(0), row);
row.SetOffset(5);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rbp_x86_64, 0x18, true);
EXPECT_EQ(*plan.GetRowAtIndex(1), row);
}
TEST_F(PECallFrameInfoTest, Frame_reg_eh) {
UnwindPlan plan(eRegisterKindLLDB);
GetUnwindPlan(0x1001280, plan);
EXPECT_EQ(plan.GetRowCount(), 11);
UnwindPlan::Row row;
row.SetOffset(0);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 8);
row.SetRegisterLocationToIsCFAPlusOffset(lldb_rsp_x86_64, 0, true);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rip_x86_64, -8, true);
EXPECT_EQ(*plan.GetRowAtIndex(0), row);
row.SetOffset(6);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x10);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rbp_x86_64, -0x10, true);
EXPECT_EQ(*plan.GetRowAtIndex(1), row);
row.SetOffset(8);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x18);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r12_x86_64, -0x18, true);
EXPECT_EQ(*plan.GetRowAtIndex(2), row);
row.SetOffset(0xA);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x20);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r13_x86_64, -0x20, true);
EXPECT_EQ(*plan.GetRowAtIndex(3), row);
row.SetOffset(0xC);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x28);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r14_x86_64, -0x28, true);
EXPECT_EQ(*plan.GetRowAtIndex(4), row);
row.SetOffset(0xE);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x30);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_r15_x86_64, -0x30, true);
EXPECT_EQ(*plan.GetRowAtIndex(5), row);
row.SetOffset(0x15);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rsp_x86_64, 0x320);
EXPECT_EQ(*plan.GetRowAtIndex(6), row);
row.SetOffset(0x1A);
row.GetCFAValue().SetIsRegisterPlusOffset(lldb_rbp_x86_64, 0x2F0);
EXPECT_EQ(*plan.GetRowAtIndex(7), row);
row.SetOffset(0x21);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rbx_x86_64, 8, true);
EXPECT_EQ(*plan.GetRowAtIndex(8), row);
row.SetOffset(0x28);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rsi_x86_64, 0x10, true);
EXPECT_EQ(*plan.GetRowAtIndex(9), row);
row.SetOffset(0x2F);
row.SetRegisterLocationToAtCFAPlusOffset(lldb_rdi_x86_64, 0x18, true);
EXPECT_EQ(*plan.GetRowAtIndex(10), row);
}
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