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ZequanWuZequanWu
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[DWARF] Fix DWARTTypePrinter unable to print qualified name for DW_TAG_typedef DIE
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3 files changed

+139
-3
lines changed

3 files changed

+139
-3
lines changed

‎llvm/include/llvm/DebugInfo/DWARF/DWARFTypePrinter.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -69,6 +69,7 @@ template <typename DieType> struct DWARFTypePrinter {
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case dwarf::DW_TAG_union_type:
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case dwarf::DW_TAG_namespace:
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case dwarf::DW_TAG_enumeration_type:
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case dwarf::DW_TAG_typedef:
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return true;
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default:
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break;

‎llvm/test/tools/dsymutil/X86/DWARFLinkerParallel/odr-string.test

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -132,11 +132,11 @@ CHECK: 0x[[STRING:[0-9a-f]*]]: DW_TAG_typedef{{.*[[:space:]].*}}DW_AT_type{{.*}}
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133133
CHECK:DW_TAG_reference_type
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135-
CHECK: 0x[[CONST_STR_REF:[0-9a-f]*]]: DW_TAG_reference_type{{.*[[:space:]].*}}DW_AT_type{{.*}}0x[[CONST_STRING:[0-9a-f]*]] "const string"
135+
CHECK: 0x[[CONST_STR_REF:[0-9a-f]*]]: DW_TAG_reference_type{{.*[[:space:]].*}}DW_AT_type{{.*}}0x[[CONST_STRING:[0-9a-f]*]] "const std::__1::string"
136136

137137
CHECK:DW_TAG_const_type
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139-
CHECK: 0x[[CONST_STRING]]: DW_TAG_const_type{{.*[[:space:]].*}}DW_AT_type{{.*}}0x[[STRING]] "string"
139+
CHECK: 0x[[CONST_STRING]]: DW_TAG_const_type{{.*[[:space:]].*}}DW_AT_type{{.*}}0x[[STRING]] "std::__1::string"
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141141

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CHECK: Compile Unit:
@@ -148,7 +148,7 @@ CHECK: DW_AT_high_pc
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CHECK: DW_AT_name{{.*}}"PrintSize"
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CHECK: DW_TAG_formal_parameter
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CHECK: DW_AT_name{{.*}}"String"
151-
CHECK: DW_AT_type{{.*}}0x00000000[[CONST_STR_REF]] "const string &"
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CHECK: DW_AT_type{{.*}}0x00000000[[CONST_STR_REF]] "const std::__1::string &"
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CHECK: Compile Unit:
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CHECK: DW_TAG_compile_unit

‎llvm/unittests/DebugInfo/DWARF/DWARFDieTest.cpp

Lines changed: 135 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -9,6 +9,7 @@
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
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#include "llvm/DebugInfo/DWARF/DWARFContext.h"
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#include "llvm/DebugInfo/DWARF/DWARFTypePrinter.h"
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#include "llvm/ObjectYAML/DWARFEmitter.h"
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#include "llvm/Testing/Support/Error.h"
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#include "gtest/gtest.h"
@@ -704,4 +705,138 @@ TEST(DWARFDie, getNameFromTypeUnit) {
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ASSERT_STREQ(Die.getName(DINameKind::ShortName), "STRUCT");
705706
}
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void testAppendAndTerminateTemplateParameters(const DWARFDie &DIE,
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const std::string &Expected) {
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std::string TemplateName;
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llvm::raw_string_ostream TemplateNameOS(TemplateName);
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llvm::DWARFTypePrinter<DWARFDie> TemplateNamePrinter(TemplateNameOS);
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TemplateNamePrinter.appendAndTerminateTemplateParameters(DIE);
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EXPECT_THAT(TemplateName, Expected);
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}
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void testAppendQualifiedName(const DWARFDie &DIE, const std::string &Expected) {
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std::string QualifiedName;
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llvm::raw_string_ostream TemplateNameOS(QualifiedName);
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llvm::DWARFTypePrinter<DWARFDie> TemplateNamePrinter(TemplateNameOS);
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TemplateNamePrinter.appendQualifiedName(DIE);
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EXPECT_THAT(QualifiedName, Expected);
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}
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TEST(DWARFDie, DWARFTypePrinterTest) {
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// Make sure we can get template parameters and qualified names correctly with
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// DWARFTypePrinter when using -gsimple-template-names.
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// 0x0000000b: DW_TAG_compile_unit
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// 0x0000000c: DW_TAG_base_type
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// DW_AT_name ("int")
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// 0x00000011: DW_TAG_structure_type
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// DW_AT_name ("t1")
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// 0x00000015: DW_TAG_template_type_parameter
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// DW_AT_type (0x0000001f "t3<int>")
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// 0x0000001a: DW_TAG_structure_type
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// DW_AT_name ("t2")
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// 0x0000001e: NULL
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// 0x0000001f: DW_TAG_structure_type
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// DW_AT_name ("t3")
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// 0x00000023: DW_TAG_template_type_parameter
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// DW_AT_type (0x0000000c "int")
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// 0x00000028: NULL
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// 0x00000029: NULL
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const char *yamldata = R"(
746+
debug_abbrev:
747+
- ID: 0
748+
Table:
749+
- Code: 0x1
750+
Tag: DW_TAG_compile_unit
751+
Children: DW_CHILDREN_yes
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- Code: 0x2
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Tag: DW_TAG_base_type
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_string
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- Code: 0x3
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Tag: DW_TAG_structure_type
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Children: DW_CHILDREN_yes
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_string
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- Code: 0x4
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Tag: DW_TAG_template_type_parameter
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_type
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Form: DW_FORM_ref4
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- Code: 0x5
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Tag: DW_TAG_structure_type
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_string
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- Code: 0x6
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Tag: DW_TAG_structure_type
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Children: DW_CHILDREN_yes
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_string
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- Code: 0x7
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Tag: DW_TAG_template_type_parameter
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Children: DW_CHILDREN_no
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Attributes:
786+
- Attribute: DW_AT_type
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Form: DW_FORM_ref4
788+
- Code: 0x8
789+
Tag: DW_TAG_typedef
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_type
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Form: DW_FORM_ref4
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- Attribute: DW_AT_name
795+
Form: DW_FORM_string
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debug_info:
797+
- Version: 4
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AddrSize: 8
799+
Entries:
800+
- AbbrCode: 0x1
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- AbbrCode: 0x2
802+
Values:
803+
- Value: 0xDEADBEEFDEADBEEF
804+
CStr: int
805+
- AbbrCode: 0x3
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Values:
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- Value: 0xDEADBEEFDEADBEEF
808+
CStr: t1
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- AbbrCode: 0x4
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Values:
811+
- Value: 0x0000001f # update
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- AbbrCode: 0x5
813+
Values:
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- Value: 0xDEADBEEFDEADBEEF
815+
CStr: t2
816+
- AbbrCode: 0x0
817+
- AbbrCode: 0x6
818+
Values:
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- Value: 0xDEADBEEFDEADBEEF
820+
CStr: t3
821+
- AbbrCode: 0x7
822+
Values:
823+
- Value: 0x0000000c # update
824+
- AbbrCode: 0x8
825+
Values:
826+
- Value: 0x0000000c
827+
- CStr: my_int
828+
- AbbrCode: 0x0
829+
- AbbrCode: 0x0)";
830+
Expected<StringMap<std::unique_ptr<MemoryBuffer>>> Sections =
831+
DWARFYAML::emitDebugSections(StringRef(yamldata),
832+
/*IsLittleEndian=*/true,
833+
/*Is64BitAddrSize=*/true);
834+
ASSERT_THAT_EXPECTED(Sections, Succeeded());
835+
std::unique_ptr<DWARFContext> Ctx =
836+
DWARFContext::create(*Sections, 4, /*isLittleEndian=*/true);
837+
testAppendAndTerminateTemplateParameters(Ctx->getDIEForOffset(0x11),
838+
"<t3<int> >");
839+
testAppendQualifiedName(Ctx->getDIEForOffset(0x1a), "t1<t3<int> >::t2");
840+
testAppendQualifiedName(Ctx->getDIEForOffset(0x28), "t3<int>::my_int");
841+
}
707842
} // end anonymous namespace

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