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//===- llvm/unittest/DebugInfo/DWARFFormValueTest.cpp ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
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#include "llvm/DebugInfo/DWARF/DWARFDie.h"
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#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
#include "llvm/DebugInfo/DWARF/DWARFUnit.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/TargetSelect.h"
#include "gtest/gtest.h"
#include <climits>
using namespace llvm;
using namespace dwarf;
namespace {
void initLLVMIfNeeded() {
static bool gInitialized = false;
if (!gInitialized) {
gInitialized = true;
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
}
}
Triple getHostTripleForAddrSize(uint8_t AddrSize) {
Triple PT(Triple::normalize(LLVM_HOST_TRIPLE));
if (AddrSize == 8 && PT.isArch32Bit())
return PT.get64BitArchVariant();
if (AddrSize == 4 && PT.isArch64Bit())
return PT.get32BitArchVariant();
return PT;
}
/// Take any llvm::Expected and check and handle any errors.
///
/// \param Expected a llvm::Excepted instance to check.
/// \returns true if there were errors, false otherwise.
template <typename T>
static bool HandleExpectedError(T &Expected) {
std::string ErrorMsg;
handleAllErrors(Expected.takeError(), [&](const llvm::ErrorInfoBase &EI) {
ErrorMsg = EI.message();
});
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if (!ErrorMsg.empty()) {
::testing::AssertionFailure() << "error: " << ErrorMsg;
return true;
}
return false;
}
template <uint16_t Version, class AddrType, class RefAddrType>
void TestAllForms() {
// Test that we can decode all DW_FORM values correctly.
const uint8_t AddrSize = sizeof(AddrType);
const AddrType AddrValue = (AddrType)0x0123456789abcdefULL;
const uint8_t BlockData[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
const uint32_t BlockSize = sizeof(BlockData);
const RefAddrType RefAddr = 0x12345678;
const uint8_t Data1 = 0x01U;
const uint16_t Data2 = 0x2345U;
const uint32_t Data4 = 0x6789abcdU;
const uint64_t Data8 = 0x0011223344556677ULL;
const uint64_t Data8_2 = 0xAABBCCDDEEFF0011ULL;
const int64_t SData = INT64_MIN;
const int64_t ICSData = INT64_MAX; // DW_FORM_implicit_const SData
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const uint64_t UData[] = {UINT64_MAX - 1, UINT64_MAX - 2, UINT64_MAX - 3,
UINT64_MAX - 4, UINT64_MAX - 5, UINT64_MAX - 6,
UINT64_MAX - 7, UINT64_MAX - 8, UINT64_MAX - 9};
#define UDATA_1 18446744073709551614ULL
const uint32_t Dwarf32Values[] = {1, 2, 3, 4, 5, 6, 7, 8};
const char *StringValue = "Hello";
const char *StrpValue = "World";
initLLVMIfNeeded();
Triple Triple = getHostTripleForAddrSize(AddrSize);
auto ExpectedDG = dwarfgen::Generator::create(Triple, Version);
if (HandleExpectedError(ExpectedDG))
return;
dwarfgen::Generator *DG = ExpectedDG.get().get();
dwarfgen::CompileUnit &CU = DG->addCompileUnit();
dwarfgen::DIE CUDie = CU.getUnitDIE();
uint16_t Attr = DW_AT_lo_user;
//----------------------------------------------------------------------
// Test address forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_addr = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_addr, DW_FORM_addr, AddrValue);
//----------------------------------------------------------------------
// Test block forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_block = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_block, DW_FORM_block, BlockData, BlockSize);
const auto Attr_DW_FORM_block1 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_block1, DW_FORM_block1, BlockData, BlockSize);
const auto Attr_DW_FORM_block2 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_block2, DW_FORM_block2, BlockData, BlockSize);
const auto Attr_DW_FORM_block4 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_block4, DW_FORM_block4, BlockData, BlockSize);
//----------------------------------------------------------------------
// Test data forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_data1 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_data1, DW_FORM_data1, Data1);
const auto Attr_DW_FORM_data2 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_data2, DW_FORM_data2, Data2);
const auto Attr_DW_FORM_data4 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_data4, DW_FORM_data4, Data4);
const auto Attr_DW_FORM_data8 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_data8, DW_FORM_data8, Data8);
//----------------------------------------------------------------------
// Test string forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_string = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_string, DW_FORM_string, StringValue);
const auto Attr_DW_FORM_strp = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_strp, DW_FORM_strp, StrpValue);
//----------------------------------------------------------------------
// Test reference forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_ref_addr = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref_addr, DW_FORM_ref_addr, RefAddr);
const auto Attr_DW_FORM_ref1 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref1, DW_FORM_ref1, Data1);
const auto Attr_DW_FORM_ref2 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref2, DW_FORM_ref2, Data2);
const auto Attr_DW_FORM_ref4 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref4, DW_FORM_ref4, Data4);
const auto Attr_DW_FORM_ref8 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref8, DW_FORM_ref8, Data8);
const auto Attr_DW_FORM_ref_sig8 = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref_sig8, DW_FORM_ref_sig8, Data8_2);
const auto Attr_DW_FORM_ref_udata = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_ref_udata, DW_FORM_ref_udata, UData[0]);
//----------------------------------------------------------------------
// Test flag forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_flag_true = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_flag_true, DW_FORM_flag, true);
const auto Attr_DW_FORM_flag_false = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_flag_false, DW_FORM_flag, false);
const auto Attr_DW_FORM_flag_present = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_flag_present, DW_FORM_flag_present);
//----------------------------------------------------------------------
// Test SLEB128 based forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_sdata = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_sdata, DW_FORM_sdata, SData);
const auto Attr_DW_FORM_implicit_const =
static_cast<dwarf::Attribute>(Attr++);
if (Version >= 5)
CUDie.addAttribute(Attr_DW_FORM_implicit_const, DW_FORM_implicit_const,
ICSData);
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//----------------------------------------------------------------------
// Test ULEB128 based forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_udata = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_udata, DW_FORM_udata, UData[0]);
//----------------------------------------------------------------------
// Test DWARF32/DWARF64 forms
//----------------------------------------------------------------------
const auto Attr_DW_FORM_GNU_ref_alt = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_GNU_ref_alt, DW_FORM_GNU_ref_alt,
Dwarf32Values[0]);
const auto Attr_DW_FORM_sec_offset = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_DW_FORM_sec_offset, DW_FORM_sec_offset,
Dwarf32Values[1]);
//----------------------------------------------------------------------
// Add an address at the end to make sure we can decode this value
//----------------------------------------------------------------------
const auto Attr_Last = static_cast<dwarf::Attribute>(Attr++);
CUDie.addAttribute(Attr_Last, DW_FORM_addr, AddrValue);
//----------------------------------------------------------------------
// Generate the DWARF
//----------------------------------------------------------------------
StringRef FileBytes = DG->generate();
MemoryBufferRef FileBuffer(FileBytes, "dwarf");
auto Obj = object::ObjectFile::createObjectFile(FileBuffer);
EXPECT_TRUE((bool)Obj);
DWARFContextInMemory DwarfContext(*Obj.get());
uint32_t NumCUs = DwarfContext.getNumCompileUnits();
EXPECT_EQ(NumCUs, 1u);
DWARFCompileUnit *U = DwarfContext.getCompileUnitAtIndex(0);
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auto DieDG = U->getUnitDIE(false);
EXPECT_TRUE(DieDG.isValid());
//----------------------------------------------------------------------
// Test address forms
//----------------------------------------------------------------------
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EXPECT_EQ(DieDG.getAttributeValueAsAddress(Attr_DW_FORM_addr, 0),
AddrValue);
//----------------------------------------------------------------------
// Test block forms
//----------------------------------------------------------------------
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Optional<DWARFFormValue> FormValue;
ArrayRef<uint8_t> ExtractedBlockData;
Optional<ArrayRef<uint8_t>> BlockDataOpt;
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FormValue = DieDG.getAttributeValue(Attr_DW_FORM_block);
EXPECT_TRUE((bool)FormValue);
BlockDataOpt = FormValue->getAsBlock();
EXPECT_TRUE(BlockDataOpt.hasValue());
ExtractedBlockData = BlockDataOpt.getValue();
EXPECT_EQ(ExtractedBlockData.size(), BlockSize);
EXPECT_TRUE(memcmp(ExtractedBlockData.data(), BlockData, BlockSize) == 0);
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FormValue = DieDG.getAttributeValue(Attr_DW_FORM_block1);
EXPECT_TRUE((bool)FormValue);
BlockDataOpt = FormValue->getAsBlock();
EXPECT_TRUE(BlockDataOpt.hasValue());
ExtractedBlockData = BlockDataOpt.getValue();
EXPECT_EQ(ExtractedBlockData.size(), BlockSize);
EXPECT_TRUE(memcmp(ExtractedBlockData.data(), BlockData, BlockSize) == 0);
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FormValue = DieDG.getAttributeValue(Attr_DW_FORM_block2);
EXPECT_TRUE((bool)FormValue);
BlockDataOpt = FormValue->getAsBlock();
EXPECT_TRUE(BlockDataOpt.hasValue());
ExtractedBlockData = BlockDataOpt.getValue();
EXPECT_EQ(ExtractedBlockData.size(), BlockSize);
EXPECT_TRUE(memcmp(ExtractedBlockData.data(), BlockData, BlockSize) == 0);
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FormValue = DieDG.getAttributeValue(Attr_DW_FORM_block4);
EXPECT_TRUE((bool)FormValue);
BlockDataOpt = FormValue->getAsBlock();
EXPECT_TRUE(BlockDataOpt.hasValue());
ExtractedBlockData = BlockDataOpt.getValue();
EXPECT_EQ(ExtractedBlockData.size(), BlockSize);
EXPECT_TRUE(memcmp(ExtractedBlockData.data(), BlockData, BlockSize) == 0);
//----------------------------------------------------------------------
// Test data forms
//----------------------------------------------------------------------
EXPECT_EQ(
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DieDG.getAttributeValueAsUnsignedConstant(Attr_DW_FORM_data1, 0),
Data1);
EXPECT_EQ(
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DieDG.getAttributeValueAsUnsignedConstant(Attr_DW_FORM_data2, 0),
Data2);
EXPECT_EQ(
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DieDG.getAttributeValueAsUnsignedConstant(Attr_DW_FORM_data4, 0),
Data4);
EXPECT_EQ(
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DieDG.getAttributeValueAsUnsignedConstant(Attr_DW_FORM_data8, 0),
Data8);
//----------------------------------------------------------------------
// Test string forms
//----------------------------------------------------------------------
const char *ExtractedStringValue =
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DieDG.getAttributeValueAsString(Attr_DW_FORM_string, nullptr);
EXPECT_TRUE(ExtractedStringValue != nullptr);
EXPECT_TRUE(strcmp(StringValue, ExtractedStringValue) == 0);
const char *ExtractedStrpValue =
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DieDG.getAttributeValueAsString(Attr_DW_FORM_strp, nullptr);
EXPECT_TRUE(ExtractedStrpValue != nullptr);
EXPECT_TRUE(strcmp(StrpValue, ExtractedStrpValue) == 0);
//----------------------------------------------------------------------
// Test reference forms
//----------------------------------------------------------------------
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref_addr, 0),
RefAddr);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref1, 0),
Data1);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref2, 0),
Data2);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref4, 0),
Data4);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref8, 0),
Data8);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref_sig8, 0),
Data8_2);
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EXPECT_EQ(DieDG.getAttributeValueAsReference(Attr_DW_FORM_ref_udata, 0),
UData[0]);
//----------------------------------------------------------------------
// Test flag forms
//----------------------------------------------------------------------
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EXPECT_EQ(DieDG.getAttributeValueAsUnsignedConstant(
Attr_DW_FORM_flag_true, 0ULL),
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EXPECT_EQ(DieDG.getAttributeValueAsUnsignedConstant(
Attr_DW_FORM_flag_false, 1ULL),
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EXPECT_EQ(DieDG.getAttributeValueAsUnsignedConstant(
Attr_DW_FORM_flag_present, 0ULL),
1ULL);
//----------------------------------------------------------------------
// Test SLEB128 based forms
//----------------------------------------------------------------------
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EXPECT_EQ(DieDG.getAttributeValueAsSignedConstant(Attr_DW_FORM_sdata, 0),
SData);
if (Version >= 5)
EXPECT_EQ(DieDG.getAttributeValueAsSignedConstant(
Attr_DW_FORM_implicit_const, 0), ICSData);
//----------------------------------------------------------------------
// Test ULEB128 based forms
//----------------------------------------------------------------------
EXPECT_EQ(
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DieDG.getAttributeValueAsUnsignedConstant(Attr_DW_FORM_udata, 0),
UData[0]);
//----------------------------------------------------------------------
// Test DWARF32/DWARF64 forms
//----------------------------------------------------------------------
EXPECT_EQ(
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DieDG.getAttributeValueAsReference(Attr_DW_FORM_GNU_ref_alt, 0),
Dwarf32Values[0]);
EXPECT_EQ(
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DieDG.getAttributeValueAsSectionOffset(Attr_DW_FORM_sec_offset, 0),
Dwarf32Values[1]);
//----------------------------------------------------------------------
// Add an address at the end to make sure we can decode this value
//----------------------------------------------------------------------
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EXPECT_EQ(DieDG.getAttributeValueAsAddress(Attr_Last, 0), AddrValue);
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}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr4AllForms) {
// Test that we can decode all forms for DWARF32, version 2, with 4 byte
// addresses.
typedef uint32_t AddrType;
// DW_FORM_ref_addr are the same as the address type in DWARF32 version 2.
typedef AddrType RefAddrType;
TestAllForms<2, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr8AllForms) {
// Test that we can decode all forms for DWARF32, version 2, with 4 byte
// addresses.
typedef uint64_t AddrType;
// DW_FORM_ref_addr are the same as the address type in DWARF32 version 2.
typedef AddrType RefAddrType;
TestAllForms<2, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr4AllForms) {
// Test that we can decode all forms for DWARF32, version 3, with 4 byte
// addresses.
typedef uint32_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later.
typedef uint32_t RefAddrType;
TestAllForms<3, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr8AllForms) {
// Test that we can decode all forms for DWARF32, version 3, with 8 byte
// addresses.
typedef uint64_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later
typedef uint32_t RefAddrType;
TestAllForms<3, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr4AllForms) {
// Test that we can decode all forms for DWARF32, version 4, with 4 byte
// addresses.
typedef uint32_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later
typedef uint32_t RefAddrType;
TestAllForms<4, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr8AllForms) {
// Test that we can decode all forms for DWARF32, version 4, with 8 byte
// addresses.
typedef uint64_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later
typedef uint32_t RefAddrType;
TestAllForms<4, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version5Addr4AllForms) {
// Test that we can decode all forms for DWARF32, version 5, with 4 byte
// addresses.
typedef uint32_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later
typedef uint32_t RefAddrType;
TestAllForms<5, AddrType, RefAddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version5Addr8AllForms) {
// Test that we can decode all forms for DWARF32, version 5, with 8 byte
// addresses.
typedef uint64_t AddrType;
// DW_FORM_ref_addr are 4 bytes in DWARF32 for version 3 and later
typedef uint32_t RefAddrType;
TestAllForms<5, AddrType, RefAddrType>();
}
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template <uint16_t Version, class AddrType> void TestChildren() {
// Test that we can decode DW_FORM_ref_addr values correctly in DWARF 2 with
// 4 byte addresses. DW_FORM_ref_addr values should be 4 bytes when using
// 8 byte addresses.
const uint8_t AddrSize = sizeof(AddrType);
initLLVMIfNeeded();
Triple Triple = getHostTripleForAddrSize(AddrSize);
auto ExpectedDG = dwarfgen::Generator::create(Triple, Version);
if (HandleExpectedError(ExpectedDG))
return;
dwarfgen::Generator *DG = ExpectedDG.get().get();
dwarfgen::CompileUnit &CU = DG->addCompileUnit();
dwarfgen::DIE CUDie = CU.getUnitDIE();
CUDie.addAttribute(DW_AT_name, DW_FORM_strp, "/tmp/main.c");
CUDie.addAttribute(DW_AT_language, DW_FORM_data2, DW_LANG_C);
dwarfgen::DIE SubprogramDie = CUDie.addChild(DW_TAG_subprogram);
SubprogramDie.addAttribute(DW_AT_name, DW_FORM_strp, "main");
SubprogramDie.addAttribute(DW_AT_low_pc, DW_FORM_addr, 0x1000U);
SubprogramDie.addAttribute(DW_AT_high_pc, DW_FORM_addr, 0x2000U);
dwarfgen::DIE IntDie = CUDie.addChild(DW_TAG_base_type);
IntDie.addAttribute(DW_AT_name, DW_FORM_strp, "int");
IntDie.addAttribute(DW_AT_encoding, DW_FORM_data1, DW_ATE_signed);
IntDie.addAttribute(DW_AT_byte_size, DW_FORM_data1, 4);
dwarfgen::DIE ArgcDie = SubprogramDie.addChild(DW_TAG_formal_parameter);
ArgcDie.addAttribute(DW_AT_name, DW_FORM_strp, "argc");
// ArgcDie.addAttribute(DW_AT_type, DW_FORM_ref4, IntDie);
ArgcDie.addAttribute(DW_AT_type, DW_FORM_ref_addr, IntDie);
StringRef FileBytes = DG->generate();
MemoryBufferRef FileBuffer(FileBytes, "dwarf");
auto Obj = object::ObjectFile::createObjectFile(FileBuffer);
EXPECT_TRUE((bool)Obj);
DWARFContextInMemory DwarfContext(*Obj.get());
// Verify the number of compile units is correct.
uint32_t NumCUs = DwarfContext.getNumCompileUnits();
EXPECT_EQ(NumCUs, 1u);
DWARFCompileUnit *U = DwarfContext.getCompileUnitAtIndex(0);
// Get the compile unit DIE is valid.
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auto DieDG = U->getUnitDIE(false);
EXPECT_TRUE(DieDG.isValid());
// DieDG.dump(llvm::outs(), U, UINT32_MAX);
// Verify the first child of the compile unit DIE is our subprogram.
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auto SubprogramDieDG = DieDG.getFirstChild();
EXPECT_TRUE(SubprogramDieDG.isValid());
EXPECT_EQ(SubprogramDieDG.getTag(), DW_TAG_subprogram);
// Verify the first child of the subprogram is our formal parameter.
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auto ArgcDieDG = SubprogramDieDG.getFirstChild();
EXPECT_TRUE(ArgcDieDG.isValid());
EXPECT_EQ(ArgcDieDG.getTag(), DW_TAG_formal_parameter);
// Verify our formal parameter has a NULL tag sibling.
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auto NullDieDG = ArgcDieDG.getSibling();
EXPECT_TRUE(NullDieDG.isValid());
if (NullDieDG) {
EXPECT_EQ(NullDieDG.getTag(), DW_TAG_null);
EXPECT_TRUE(!NullDieDG.getSibling().isValid());
EXPECT_TRUE(!NullDieDG.getFirstChild().isValid());
}
// Verify the sibling of our subprogram is our integer base type.
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auto IntDieDG = SubprogramDieDG.getSibling();
EXPECT_TRUE(IntDieDG.isValid());
EXPECT_EQ(IntDieDG.getTag(), DW_TAG_base_type);
// Verify the sibling of our subprogram is our integer base is a NULL tag.
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NullDieDG = IntDieDG.getSibling();
EXPECT_TRUE(NullDieDG.isValid());
if (NullDieDG) {
EXPECT_EQ(NullDieDG.getTag(), DW_TAG_null);
EXPECT_TRUE(!NullDieDG.getSibling().isValid());
EXPECT_TRUE(!NullDieDG.getFirstChild().isValid());
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}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr4Children) {
// Test that we can decode all forms for DWARF32, version 2, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestChildren<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr8Children) {
// Test that we can decode all forms for DWARF32, version 2, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestChildren<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr4Children) {
// Test that we can decode all forms for DWARF32, version 3, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestChildren<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr8Children) {
// Test that we can decode all forms for DWARF32, version 3, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestChildren<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr4Children) {
// Test that we can decode all forms for DWARF32, version 4, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestChildren<4, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr8Children) {
// Test that we can decode all forms for DWARF32, version 4, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestChildren<4, AddrType>();
}
template <uint16_t Version, class AddrType> void TestReferences() {
// Test that we can decode DW_FORM_refXXX values correctly in DWARF.
const uint8_t AddrSize = sizeof(AddrType);
initLLVMIfNeeded();
Triple Triple = getHostTripleForAddrSize(AddrSize);
auto ExpectedDG = dwarfgen::Generator::create(Triple, Version);
if (HandleExpectedError(ExpectedDG))
return;
dwarfgen::Generator *DG = ExpectedDG.get().get();
dwarfgen::CompileUnit &CU1 = DG->addCompileUnit();
dwarfgen::CompileUnit &CU2 = DG->addCompileUnit();
dwarfgen::DIE CU1Die = CU1.getUnitDIE();
CU1Die.addAttribute(DW_AT_name, DW_FORM_strp, "/tmp/main.c");
CU1Die.addAttribute(DW_AT_language, DW_FORM_data2, DW_LANG_C);
dwarfgen::DIE CU1TypeDie = CU1Die.addChild(DW_TAG_base_type);
CU1TypeDie.addAttribute(DW_AT_name, DW_FORM_strp, "int");
CU1TypeDie.addAttribute(DW_AT_encoding, DW_FORM_data1, DW_ATE_signed);
CU1TypeDie.addAttribute(DW_AT_byte_size, DW_FORM_data1, 4);
dwarfgen::DIE CU1Ref1Die = CU1Die.addChild(DW_TAG_variable);
CU1Ref1Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU1Ref1");
CU1Ref1Die.addAttribute(DW_AT_type, DW_FORM_ref1, CU1TypeDie);
dwarfgen::DIE CU1Ref2Die = CU1Die.addChild(DW_TAG_variable);
CU1Ref2Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU1Ref2");
CU1Ref2Die.addAttribute(DW_AT_type, DW_FORM_ref2, CU1TypeDie);
dwarfgen::DIE CU1Ref4Die = CU1Die.addChild(DW_TAG_variable);
CU1Ref4Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU1Ref4");
CU1Ref4Die.addAttribute(DW_AT_type, DW_FORM_ref4, CU1TypeDie);
dwarfgen::DIE CU1Ref8Die = CU1Die.addChild(DW_TAG_variable);
CU1Ref8Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU1Ref8");
CU1Ref8Die.addAttribute(DW_AT_type, DW_FORM_ref8, CU1TypeDie);
dwarfgen::DIE CU1RefAddrDie = CU1Die.addChild(DW_TAG_variable);
CU1RefAddrDie.addAttribute(DW_AT_name, DW_FORM_strp, "CU1RefAddr");
CU1RefAddrDie.addAttribute(DW_AT_type, DW_FORM_ref_addr, CU1TypeDie);
dwarfgen::DIE CU2Die = CU2.getUnitDIE();
CU2Die.addAttribute(DW_AT_name, DW_FORM_strp, "/tmp/foo.c");
CU2Die.addAttribute(DW_AT_language, DW_FORM_data2, DW_LANG_C);
dwarfgen::DIE CU2TypeDie = CU2Die.addChild(DW_TAG_base_type);
CU2TypeDie.addAttribute(DW_AT_name, DW_FORM_strp, "float");
CU2TypeDie.addAttribute(DW_AT_encoding, DW_FORM_data1, DW_ATE_float);
CU2TypeDie.addAttribute(DW_AT_byte_size, DW_FORM_data1, 4);
dwarfgen::DIE CU2Ref1Die = CU2Die.addChild(DW_TAG_variable);
CU2Ref1Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU2Ref1");
CU2Ref1Die.addAttribute(DW_AT_type, DW_FORM_ref1, CU2TypeDie);
dwarfgen::DIE CU2Ref2Die = CU2Die.addChild(DW_TAG_variable);
CU2Ref2Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU2Ref2");
CU2Ref2Die.addAttribute(DW_AT_type, DW_FORM_ref2, CU2TypeDie);
dwarfgen::DIE CU2Ref4Die = CU2Die.addChild(DW_TAG_variable);
CU2Ref4Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU2Ref4");
CU2Ref4Die.addAttribute(DW_AT_type, DW_FORM_ref4, CU2TypeDie);
dwarfgen::DIE CU2Ref8Die = CU2Die.addChild(DW_TAG_variable);
CU2Ref8Die.addAttribute(DW_AT_name, DW_FORM_strp, "CU2Ref8");
CU2Ref8Die.addAttribute(DW_AT_type, DW_FORM_ref8, CU2TypeDie);
dwarfgen::DIE CU2RefAddrDie = CU2Die.addChild(DW_TAG_variable);
CU2RefAddrDie.addAttribute(DW_AT_name, DW_FORM_strp, "CU2RefAddr");
CU2RefAddrDie.addAttribute(DW_AT_type, DW_FORM_ref_addr, CU2TypeDie);
// Refer to a type in CU1 from CU2
dwarfgen::DIE CU2ToCU1RefAddrDie = CU2Die.addChild(DW_TAG_variable);
CU2ToCU1RefAddrDie.addAttribute(DW_AT_name, DW_FORM_strp, "CU2ToCU1RefAddr");
CU2ToCU1RefAddrDie.addAttribute(DW_AT_type, DW_FORM_ref_addr, CU1TypeDie);
// Refer to a type in CU2 from CU1
dwarfgen::DIE CU1ToCU2RefAddrDie = CU1Die.addChild(DW_TAG_variable);
CU1ToCU2RefAddrDie.addAttribute(DW_AT_name, DW_FORM_strp, "CU1ToCU2RefAddr");
CU1ToCU2RefAddrDie.addAttribute(DW_AT_type, DW_FORM_ref_addr, CU2TypeDie);
StringRef FileBytes = DG->generate();
MemoryBufferRef FileBuffer(FileBytes, "dwarf");
auto Obj = object::ObjectFile::createObjectFile(FileBuffer);
EXPECT_TRUE((bool)Obj);
DWARFContextInMemory DwarfContext(*Obj.get());
// Verify the number of compile units is correct.
uint32_t NumCUs = DwarfContext.getNumCompileUnits();
EXPECT_EQ(NumCUs, 2u);
DWARFCompileUnit *U1 = DwarfContext.getCompileUnitAtIndex(0);
DWARFCompileUnit *U2 = DwarfContext.getCompileUnitAtIndex(1);
// Get the compile unit DIE is valid.
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auto Unit1DieDG = U1->getUnitDIE(false);
EXPECT_TRUE(Unit1DieDG.isValid());
// Unit1DieDG.dump(llvm::outs(), UINT32_MAX);
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auto Unit2DieDG = U2->getUnitDIE(false);
EXPECT_TRUE(Unit2DieDG.isValid());
// Unit2DieDG.dump(llvm::outs(), UINT32_MAX);
// Verify the first child of the compile unit 1 DIE is our int base type.
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auto CU1TypeDieDG = Unit1DieDG.getFirstChild();
EXPECT_TRUE(CU1TypeDieDG.isValid());
EXPECT_EQ(CU1TypeDieDG.getTag(), DW_TAG_base_type);
EXPECT_EQ(
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CU1TypeDieDG.getAttributeValueAsUnsignedConstant(DW_AT_encoding, 0),
DW_ATE_signed);
// Verify the first child of the compile unit 2 DIE is our float base type.
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auto CU2TypeDieDG = Unit2DieDG.getFirstChild();
EXPECT_TRUE(CU2TypeDieDG.isValid());
EXPECT_EQ(CU2TypeDieDG.getTag(), DW_TAG_base_type);
EXPECT_EQ(
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CU2TypeDieDG.getAttributeValueAsUnsignedConstant(DW_AT_encoding, 0),
DW_ATE_float);
// Verify the sibling of the base type DIE is our Ref1 DIE and that its
// DW_AT_type points to our base type DIE.
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auto CU1Ref1DieDG = CU1TypeDieDG.getSibling();
EXPECT_TRUE(CU1Ref1DieDG.isValid());
EXPECT_EQ(CU1Ref1DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU1Ref1DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU1TypeDieDG.getOffset());
// Verify the sibling is our Ref2 DIE and that its DW_AT_type points to our
// base type DIE in CU1.
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auto CU1Ref2DieDG = CU1Ref1DieDG.getSibling();
EXPECT_TRUE(CU1Ref2DieDG.isValid());
EXPECT_EQ(CU1Ref2DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU1Ref2DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU1TypeDieDG.getOffset());
// Verify the sibling is our Ref4 DIE and that its DW_AT_type points to our
// base type DIE in CU1.
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auto CU1Ref4DieDG = CU1Ref2DieDG.getSibling();
EXPECT_TRUE(CU1Ref4DieDG.isValid());
EXPECT_EQ(CU1Ref4DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU1Ref4DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU1TypeDieDG.getOffset());
// Verify the sibling is our Ref8 DIE and that its DW_AT_type points to our
// base type DIE in CU1.
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auto CU1Ref8DieDG = CU1Ref4DieDG.getSibling();
EXPECT_TRUE(CU1Ref8DieDG.isValid());
EXPECT_EQ(CU1Ref8DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU1Ref8DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU1TypeDieDG.getOffset());
// Verify the sibling is our RefAddr DIE and that its DW_AT_type points to our
// base type DIE in CU1.
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auto CU1RefAddrDieDG = CU1Ref8DieDG.getSibling();
EXPECT_TRUE(CU1RefAddrDieDG.isValid());
EXPECT_EQ(CU1RefAddrDieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(
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CU1RefAddrDieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU1TypeDieDG.getOffset());
// Verify the sibling of the Ref4 DIE is our RefAddr DIE and that its
// DW_AT_type points to our base type DIE.
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auto CU1ToCU2RefAddrDieDG = CU1RefAddrDieDG.getSibling();
EXPECT_TRUE(CU1ToCU2RefAddrDieDG.isValid());
EXPECT_EQ(CU1ToCU2RefAddrDieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU1ToCU2RefAddrDieDG.getAttributeValueAsReference(DW_AT_type,
-1ULL),
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CU2TypeDieDG.getOffset());
// Verify the sibling of the base type DIE is our Ref1 DIE and that its
// DW_AT_type points to our base type DIE.
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auto CU2Ref1DieDG = CU2TypeDieDG.getSibling();
EXPECT_TRUE(CU2Ref1DieDG.isValid());
EXPECT_EQ(CU2Ref1DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU2Ref1DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU2TypeDieDG.getOffset());
// Verify the sibling is our Ref2 DIE and that its DW_AT_type points to our
// base type DIE in CU2.
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auto CU2Ref2DieDG = CU2Ref1DieDG.getSibling();
EXPECT_TRUE(CU2Ref2DieDG.isValid());
EXPECT_EQ(CU2Ref2DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU2Ref2DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU2TypeDieDG.getOffset());
// Verify the sibling is our Ref4 DIE and that its DW_AT_type points to our
// base type DIE in CU2.
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auto CU2Ref4DieDG = CU2Ref2DieDG.getSibling();
EXPECT_TRUE(CU2Ref4DieDG.isValid());
EXPECT_EQ(CU2Ref4DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU2Ref4DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU2TypeDieDG.getOffset());
// Verify the sibling is our Ref8 DIE and that its DW_AT_type points to our
// base type DIE in CU2.
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auto CU2Ref8DieDG = CU2Ref4DieDG.getSibling();
EXPECT_TRUE(CU2Ref8DieDG.isValid());
EXPECT_EQ(CU2Ref8DieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU2Ref8DieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU2TypeDieDG.getOffset());
// Verify the sibling is our RefAddr DIE and that its DW_AT_type points to our
// base type DIE in CU2.
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auto CU2RefAddrDieDG = CU2Ref8DieDG.getSibling();
EXPECT_TRUE(CU2RefAddrDieDG.isValid());
EXPECT_EQ(CU2RefAddrDieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(
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CU2RefAddrDieDG.getAttributeValueAsReference(DW_AT_type, -1ULL),
CU2TypeDieDG.getOffset());
// Verify the sibling of the Ref4 DIE is our RefAddr DIE and that its
// DW_AT_type points to our base type DIE.
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auto CU2ToCU1RefAddrDieDG = CU2RefAddrDieDG.getSibling();
EXPECT_TRUE(CU2ToCU1RefAddrDieDG.isValid());
EXPECT_EQ(CU2ToCU1RefAddrDieDG.getTag(), DW_TAG_variable);
EXPECT_EQ(CU2ToCU1RefAddrDieDG.getAttributeValueAsReference(DW_AT_type,
-1ULL),
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CU1TypeDieDG.getOffset());
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}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr4References) {
// Test that we can decode all forms for DWARF32, version 2, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestReferences<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr8References) {
// Test that we can decode all forms for DWARF32, version 2, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestReferences<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr4References) {
// Test that we can decode all forms for DWARF32, version 3, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestReferences<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr8References) {
// Test that we can decode all forms for DWARF32, version 3, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestReferences<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr4References) {
// Test that we can decode all forms for DWARF32, version 4, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestReferences<4, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr8References) {
// Test that we can decode all forms for DWARF32, version 4, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestReferences<4, AddrType>();
}
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template <uint16_t Version, class AddrType> void TestAddresses() {
// Test the DWARF APIs related to accessing the DW_AT_low_pc and
// DW_AT_high_pc.
const uint8_t AddrSize = sizeof(AddrType);
const bool SupportsHighPCAsOffset = Version >= 4;
initLLVMIfNeeded();
Triple Triple = getHostTripleForAddrSize(AddrSize);
auto ExpectedDG = dwarfgen::Generator::create(Triple, Version);
if (HandleExpectedError(ExpectedDG))
return;
dwarfgen::Generator *DG = ExpectedDG.get().get();
dwarfgen::CompileUnit &CU = DG->addCompileUnit();
dwarfgen::DIE CUDie = CU.getUnitDIE();
CUDie.addAttribute(DW_AT_name, DW_FORM_strp, "/tmp/main.c");
CUDie.addAttribute(DW_AT_language, DW_FORM_data2, DW_LANG_C);
// Create a subprogram DIE with no low or high PC.
dwarfgen::DIE SubprogramNoPC = CUDie.addChild(DW_TAG_subprogram);
SubprogramNoPC.addAttribute(DW_AT_name, DW_FORM_strp, "no_pc");
// Create a subprogram DIE with a low PC only.
dwarfgen::DIE SubprogramLowPC = CUDie.addChild(DW_TAG_subprogram);
SubprogramLowPC.addAttribute(DW_AT_name, DW_FORM_strp, "low_pc");
const uint64_t ActualLowPC = 0x1000;
const uint64_t ActualHighPC = 0x2000;
const uint64_t ActualHighPCOffset = ActualHighPC - ActualLowPC;
SubprogramLowPC.addAttribute(DW_AT_low_pc, DW_FORM_addr, ActualLowPC);
// Create a subprogram DIE with a low and high PC.
dwarfgen::DIE SubprogramLowHighPC = CUDie.addChild(DW_TAG_subprogram);
SubprogramLowHighPC.addAttribute(DW_AT_name, DW_FORM_strp, "low_high_pc");
SubprogramLowHighPC.addAttribute(DW_AT_low_pc, DW_FORM_addr, ActualLowPC);
// Encode the high PC as an offset from the low PC if supported.
if (SupportsHighPCAsOffset)
SubprogramLowHighPC.addAttribute(DW_AT_high_pc, DW_FORM_data4,
ActualHighPCOffset);
else
SubprogramLowHighPC.addAttribute(DW_AT_high_pc, DW_FORM_addr, ActualHighPC);
StringRef FileBytes = DG->generate();
MemoryBufferRef FileBuffer(FileBytes, "dwarf");
auto Obj = object::ObjectFile::createObjectFile(FileBuffer);
EXPECT_TRUE((bool)Obj);
DWARFContextInMemory DwarfContext(*Obj.get());
// Verify the number of compile units is correct.
uint32_t NumCUs = DwarfContext.getNumCompileUnits();
EXPECT_EQ(NumCUs, 1u);
DWARFCompileUnit *U = DwarfContext.getCompileUnitAtIndex(0);
// Get the compile unit DIE is valid.
auto DieDG = U->getUnitDIE(false);
EXPECT_TRUE(DieDG.isValid());
// DieDG.dump(llvm::outs(), U, UINT32_MAX);
uint64_t LowPC, HighPC;
Optional<uint64_t> OptU64;
// Verify the that our subprogram with no PC value fails appropriately when
// asked for any PC values.
auto SubprogramDieNoPC = DieDG.getFirstChild();
EXPECT_TRUE(SubprogramDieNoPC.isValid());
EXPECT_EQ(SubprogramDieNoPC.getTag(), DW_TAG_subprogram);
OptU64 = SubprogramDieNoPC.getAttributeValueAsAddress(DW_AT_low_pc);
EXPECT_FALSE((bool)OptU64);
OptU64 = SubprogramDieNoPC.getAttributeValueAsAddress(DW_AT_high_pc);
EXPECT_FALSE((bool)OptU64);
EXPECT_FALSE(SubprogramDieNoPC.getLowAndHighPC(LowPC, HighPC));
OptU64 = SubprogramDieNoPC.getAttributeValueAsAddress(DW_AT_high_pc);
EXPECT_FALSE((bool)OptU64);
OptU64 = SubprogramDieNoPC.getAttributeValueAsUnsignedConstant(DW_AT_high_pc);
EXPECT_FALSE((bool)OptU64);
OptU64 = SubprogramDieNoPC.getHighPC(ActualLowPC);
EXPECT_FALSE((bool)OptU64);
EXPECT_FALSE(SubprogramDieNoPC.getLowAndHighPC(LowPC, HighPC));
// Verify the that our subprogram with only a low PC value succeeds when
// we ask for the Low PC, but fails appropriately when asked for the high PC
// or both low and high PC values.
auto SubprogramDieLowPC = SubprogramDieNoPC.getSibling();
EXPECT_TRUE(SubprogramDieLowPC.isValid());
EXPECT_EQ(SubprogramDieLowPC.getTag(), DW_TAG_subprogram);
OptU64 = SubprogramDieLowPC.getAttributeValueAsAddress(DW_AT_low_pc);
EXPECT_TRUE((bool)OptU64);
EXPECT_EQ(OptU64.getValue(), ActualLowPC);
OptU64 = SubprogramDieLowPC.getAttributeValueAsAddress(DW_AT_high_pc);
EXPECT_FALSE((bool)OptU64);
OptU64 = SubprogramDieLowPC.getAttributeValueAsUnsignedConstant(DW_AT_high_pc);
EXPECT_FALSE((bool)OptU64);
OptU64 = SubprogramDieLowPC.getHighPC(ActualLowPC);
EXPECT_FALSE((bool)OptU64);
EXPECT_FALSE(SubprogramDieLowPC.getLowAndHighPC(LowPC, HighPC));
// Verify the that our subprogram with only a low PC value succeeds when
// we ask for the Low PC, but fails appropriately when asked for the high PC
// or both low and high PC values.
auto SubprogramDieLowHighPC = SubprogramDieLowPC.getSibling();
EXPECT_TRUE(SubprogramDieLowHighPC.isValid());
EXPECT_EQ(SubprogramDieLowHighPC.getTag(), DW_TAG_subprogram);
OptU64 = SubprogramDieLowHighPC.getAttributeValueAsAddress(DW_AT_low_pc);
EXPECT_TRUE((bool)OptU64);
EXPECT_EQ(OptU64.getValue(), ActualLowPC);
// Get the high PC as an address. This should succeed if the high PC was
// encoded as an address and fail if the high PC was encoded as an offset.
OptU64 = SubprogramDieLowHighPC.getAttributeValueAsAddress(DW_AT_high_pc);
if (SupportsHighPCAsOffset) {
EXPECT_FALSE((bool)OptU64);
} else {
EXPECT_TRUE((bool)OptU64);
EXPECT_EQ(OptU64.getValue(), ActualHighPC);
}
// Get the high PC as an unsigned constant. This should succeed if the high PC
// was encoded as an offset and fail if the high PC was encoded as an address.
OptU64 = SubprogramDieLowHighPC.getAttributeValueAsUnsignedConstant(
DW_AT_high_pc);
if (SupportsHighPCAsOffset) {
EXPECT_TRUE((bool)OptU64);
EXPECT_EQ(OptU64.getValue(), ActualHighPCOffset);
} else {
EXPECT_FALSE((bool)OptU64);
}
OptU64 = SubprogramDieLowHighPC.getHighPC(ActualLowPC);
EXPECT_TRUE((bool)OptU64);
EXPECT_EQ(OptU64.getValue(), ActualHighPC);
EXPECT_TRUE(SubprogramDieLowHighPC.getLowAndHighPC(LowPC, HighPC));
EXPECT_EQ(LowPC, ActualLowPC);
EXPECT_EQ(HighPC, ActualHighPC);
}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr4Addresses) {
// Test that we can decode address values in DWARF32, version 2, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestAddresses<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version2Addr8Addresses) {
// Test that we can decode address values in DWARF32, version 2, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestAddresses<2, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr4Addresses) {
// Test that we can decode address values in DWARF32, version 3, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestAddresses<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version3Addr8Addresses) {
// Test that we can decode address values in DWARF32, version 3, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestAddresses<3, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr4Addresses) {
// Test that we can decode address values in DWARF32, version 4, with 4 byte
// addresses.
typedef uint32_t AddrType;
TestAddresses<4, AddrType>();
}
TEST(DWARFDebugInfo, TestDWARF32Version4Addr8Addresses) {
// Test that we can decode address values in DWARF32, version 4, with 8 byte
// addresses.
typedef uint64_t AddrType;
TestAddresses<4, AddrType>();
}
TEST(DWARFDebugInfo, TestRelations) {
// Test the DWARF APIs related to accessing the DW_AT_low_pc and
// DW_AT_high_pc.
uint16_t Version = 4;