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[CodeView] Fix dumping of public symbol record flags

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I noticed nonsensical type information while dumping PDBs produced by
MSVC.

llvm-svn: 305708
This commit is contained in:
Reid Kleckner 2017-06-19 16:54:51 +00:00
parent fe895e47d9
commit 6531ce0849
9 changed files with 51 additions and 7 deletions
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10
include/llvm/DebugInfo/CodeView/CodeView.h
View File

@ -402,6 +402,16 @@ enum class LocalSymFlags : uint16_t {
};
CV_DEFINE_ENUM_CLASS_FLAGS_OPERATORS(LocalSymFlags)
/// Corresponds to the CV_PUBSYMFLAGS bitfield.
enum class PublicSymFlags : uint32_t {
None = 0,
Code = 1 << 0,
Function = 1 << 1,
Managed = 1 << 2,
MSIL = 1 << 3,
};
CV_DEFINE_ENUM_CLASS_FLAGS_OPERATORS(PublicSymFlags)
/// Corresponds to the CV_PROCFLAGS bitfield.
enum class ProcSymFlags : uint8_t {
None = 0,

1
include/llvm/DebugInfo/CodeView/EnumTables.h
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@ -22,6 +22,7 @@ namespace codeview {
ArrayRef<EnumEntry<SymbolKind>> getSymbolTypeNames();
ArrayRef<EnumEntry<TypeLeafKind>> getTypeLeafNames();
ArrayRef<EnumEntry<uint16_t>> getRegisterNames();
ArrayRef<EnumEntry<uint32_t>> getPublicSymFlagNames();
ArrayRef<EnumEntry<uint8_t>> getProcSymFlagNames();
ArrayRef<EnumEntry<uint16_t>> getLocalFlagNames();
ArrayRef<EnumEntry<uint8_t>> getFrameCookieKindNames();

2
include/llvm/DebugInfo/CodeView/SymbolRecord.h
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@ -363,7 +363,7 @@ public:
: SymbolRecord(SymbolRecordKind::PublicSym32),
RecordOffset(RecordOffset) {}
TypeIndex Index;
PublicSymFlags Flags;
uint32_t Offset;
uint16_t Segment;
StringRef Name;

10
lib/DebugInfo/CodeView/EnumTables.cpp
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@ -82,6 +82,13 @@ static const EnumEntry<uint16_t> RegisterNames[] = {
CV_ENUM_CLASS_ENT(RegisterId, R15),
};
static const EnumEntry<uint32_t> PublicSymFlagNames[] = {
CV_ENUM_CLASS_ENT(PublicSymFlags, Code),
CV_ENUM_CLASS_ENT(PublicSymFlags, Function),
CV_ENUM_CLASS_ENT(PublicSymFlags, Managed),
CV_ENUM_CLASS_ENT(PublicSymFlags, MSIL),
};
static const EnumEntry<uint8_t> ProcSymFlagNames[] = {
CV_ENUM_CLASS_ENT(ProcSymFlags, HasFP),
CV_ENUM_CLASS_ENT(ProcSymFlags, HasIRET),
@ -338,6 +345,9 @@ ArrayRef<EnumEntry<uint16_t>> getRegisterNames() {
return makeArrayRef(RegisterNames);
}
ArrayRef<EnumEntry<uint32_t>> getPublicSymFlagNames() {
return makeArrayRef(PublicSymFlagNames);
}
ArrayRef<EnumEntry<uint8_t>> getProcSymFlagNames() {
return makeArrayRef(ProcSymFlagNames);
}

2
lib/DebugInfo/CodeView/SymbolDumper.cpp
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@ -524,7 +524,7 @@ Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, PublicSym32 &Public) {
DictScope S(W, "PublicSym");
printTypeIndex("Type", Public.Index);
W.printFlags("Flags", uint32_t(Public.Flags), getPublicSymFlagNames());
W.printNumber("Seg", Public.Segment);
W.printNumber("Off", Public.Offset);
W.printString("Name", Public.Name);

2
lib/DebugInfo/CodeView/SymbolRecordMapping.cpp
View File

@ -361,7 +361,7 @@ Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
PublicSym32 &Public) {
error(IO.mapInteger(Public.Index));
error(IO.mapEnum(Public.Flags));
error(IO.mapInteger(Public.Offset));
error(IO.mapInteger(Public.Segment));
error(IO.mapStringZ(Public.Name));

11
lib/ObjectYAML/CodeViewYAMLSymbols.cpp
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@ -40,6 +40,7 @@ LLVM_YAML_DECLARE_ENUM_TRAITS(FrameCookieKind)
LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym2Flags)
LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym3Flags)
LLVM_YAML_DECLARE_BITSET_TRAITS(ExportFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(PublicSymFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(LocalSymFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(ProcSymFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(FrameProcedureOptions)
@ -93,6 +94,14 @@ void ScalarBitSetTraits<ExportFlags>::bitset(IO &io, ExportFlags &Flags) {
}
}
void ScalarBitSetTraits<PublicSymFlags>::bitset(IO &io, PublicSymFlags &Flags) {
auto FlagNames = getProcSymFlagNames();
for (const auto &E : FlagNames) {
io.bitSetCase(Flags, E.Name.str().c_str(),
static_cast<PublicSymFlags>(E.Value));
}
}
void ScalarBitSetTraits<LocalSymFlags>::bitset(IO &io, LocalSymFlags &Flags) {
auto FlagNames = getLocalFlagNames();
for (const auto &E : FlagNames) {
@ -298,7 +307,7 @@ template <> void SymbolRecordImpl<RegisterSym>::map(IO &IO) {
}
template <> void SymbolRecordImpl<PublicSym32>::map(IO &IO) {
IO.mapRequired("Type", Symbol.Index);
IO.mapRequired("Flags", Symbol.Flags);
IO.mapRequired("Seg", Symbol.Segment);
IO.mapRequired("Off", Symbol.Offset);
IO.mapRequired("Name", Symbol.Name);

4
test/DebugInfo/PDB/pdbdump-headers.test
View File

@ -458,9 +458,9 @@ ALL: Hash Adjusters:
ALL: Public Symbols
ALL-NEXT: ============================================================
ALL-NEXT: - S_PUB32 [size = 36] `?__purecall@@3PAXA`
ALL-NEXT: type = <no type>, addr = 0003:0000
ALL-NEXT: flags = none, addr = 0003:0000
ALL-NEXT: - S_PUB32 [size = 20] `_main`
ALL-NEXT: type = 0x0002 (<unknown simple type>), addr = 0001:0016
ALL-NEXT: flags = function, addr = 0001:0016
ALL-NEXT: - S_PROCREF [size = 20] `main`
ALL-NEXT: module = 1, sum name = 0, offset = 120
ALL-NEXT: - S_GDATA32 [size = 28] `__purecall`

16
tools/llvm-pdbutil/MinimalSymbolDumper.cpp
View File

@ -146,6 +146,19 @@ static std::string formatFrameProcedureOptions(uint32_t IndentLevel,
return typesetItemList(Opts, 4, IndentLevel, " | ");
}
static std::string formatPublicSymFlags(uint32_t IndentLevel,
PublicSymFlags Flags) {
std::vector<std::string> Opts;
if (Flags == PublicSymFlags::None)
return "none";
PUSH_FLAG(PublicSymFlags, Code, Flags, "code");
PUSH_FLAG(PublicSymFlags, Function, Flags, "function");
PUSH_FLAG(PublicSymFlags, Managed, Flags, "managed");
PUSH_FLAG(PublicSymFlags, MSIL, Flags, "msil");
return typesetItemList(Opts, 4, IndentLevel, " | ");
}
static std::string formatProcSymFlags(uint32_t IndentLevel,
ProcSymFlags Flags) {
std::vector<std::string> Opts;
@ -659,7 +672,8 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR,
PublicSym32 &Public) {
P.format(" `{0}`", Public.Name);
AutoIndent Indent(P);
P.formatLine("type = {0}, addr = {1}", typeIndex(Public.Index),
P.formatLine("flags = {0}, addr = {1}",
formatPublicSymFlags(P.getIndentLevel() + 9, Public.Flags),
formatSegmentOffset(Public.Segment, Public.Offset));
return Error::success();
}