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[pdbutil] When dumping section contribs, show the section name. 

llvm-svn: 310128
This commit is contained in:
Zachary Turner 2017-08-04 21:10:04 +00:00
parent c4df10e139
commit 92e584cb48
1 changed files with 78 additions and 43 deletions
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117
llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp
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@ -1068,45 +1068,53 @@ Error DumpOutputStyle::dumpSectionHeaders() {
return Error::success();
}
static Expected<std::pair<std::unique_ptr<MappedBlockStream>,
ArrayRef<llvm::object::coff_section>>>
loadSectionHeaders(PDBFile &File, DbgHeaderType Type) {
if (!File.hasPDBDbiStream())
return make_error<StringError>(
"Section headers require a DBI Stream, which could not be loaded",
inconvertibleErrorCode());
auto &Dbi = cantFail(File.getPDBDbiStream());
uint32_t SI = Dbi.getDebugStreamIndex(Type);
if (SI == kInvalidStreamIndex)
return make_error<StringError>(
"PDB does not contain the requested image section header type",
inconvertibleErrorCode());
auto Stream = MappedBlockStream::createIndexedStream(
File.getMsfLayout(), File.getMsfBuffer(), SI, File.getAllocator());
if (!Stream)
return make_error<StringError>("Could not load the required stream data",
inconvertibleErrorCode());
ArrayRef<object::coff_section> Headers;
if (Stream->getLength() % sizeof(object::coff_section) != 0)
return make_error<StringError>(
"Section header array size is not a multiple of section header size",
inconvertibleErrorCode());
uint32_t NumHeaders = Stream->getLength() / sizeof(object::coff_section);
BinaryStreamReader Reader(*Stream);
cantFail(Reader.readArray(Headers, NumHeaders));
return std::make_pair(std::move(Stream), Headers);
}
void DumpOutputStyle::dumpSectionHeaders(StringRef Label, DbgHeaderType Type) {
printHeader(P, Label);
ExitOnError Err("Error dumping publics stream: ");
AutoIndent Indent(P);
if (!File.hasPDBDbiStream()) {
P.formatLine(
"Section headers require a DBI Stream, which could not be loaded");
return;
}
auto &Dbi = Err(File.getPDBDbiStream());
uint32_t SI = Dbi.getDebugStreamIndex(Type);
if (SI == kInvalidStreamIndex) {
P.formatLine(
"PDB does not contain the requested image section header type");
return;
}
auto Stream = MappedBlockStream::createIndexedStream(
File.getMsfLayout(), File.getMsfBuffer(), SI, File.getAllocator());
if (!Stream) {
P.formatLine("Could not load the required stream data");
return;
}
std::unique_ptr<MappedBlockStream> Stream;
ArrayRef<object::coff_section> Headers;
if (Stream->getLength() % sizeof(object::coff_section) != 0) {
P.formatLine(
"Section header array size is not a multiple of section header size");
return;
}
uint32_t NumHeaders = Stream->getLength() / sizeof(object::coff_section);
BinaryStreamReader Reader(*Stream);
cantFail(Reader.readArray(Headers, NumHeaders));
if (Headers.empty()) {
P.formatLine("No section headers");
auto ExpectedHeaders = loadSectionHeaders(File, Type);
if (!ExpectedHeaders) {
P.printLine(toString(ExpectedHeaders.takeError()));
return;
}
std::tie(Stream, Headers) = std::move(*ExpectedHeaders);
uint32_t I = 1;
for (const auto &Header : Headers) {
@ -1135,6 +1143,20 @@ void DumpOutputStyle::dumpSectionHeaders(StringRef Label, DbgHeaderType Type) {
return;
}
std::vector<std::string> getSectionNames(PDBFile &File) {
auto ExpectedHeaders = loadSectionHeaders(File, DbgHeaderType::SectionHdr);
if (!ExpectedHeaders)
return {};
std::unique_ptr<MappedBlockStream> Stream;
ArrayRef<object::coff_section> Headers;
std::tie(Stream, Headers) = std::move(*ExpectedHeaders);
std::vector<std::string> Names;
for (const auto &H : Headers)
Names.push_back(H.Name);
return Names;
}
Error DumpOutputStyle::dumpSectionContribs() {
printHeader(P, "Section Contributions");
ExitOnError Err("Error dumping publics stream: ");
@ -1150,22 +1172,32 @@ Error DumpOutputStyle::dumpSectionContribs() {
class Visitor : public ISectionContribVisitor {
public:
Visitor(LinePrinter &P) : P(P) {}
Visitor(LinePrinter &P, ArrayRef<std::string> Names) : P(P), Names(Names) {
auto Max = std::max_element(
Names.begin(), Names.end(),
[](StringRef S1, StringRef S2) { return S1.size() < S2.size(); });
MaxNameLen = (Max == Names.end() ? 0 : Max->size());
}
void visit(const SectionContrib &SC) override {
P.formatLine(
"SC | mod = {2}, {0}, size = {1}, data crc = {3}, reloc crc = {4}",
formatSegmentOffset(SC.ISect, SC.Off), fmtle(SC.Size), fmtle(SC.Imod),
fmtle(SC.DataCrc), fmtle(SC.RelocCrc));
assert(SC.ISect > 0);
StringRef SectionName = Names[SC.ISect - 1];
std::string NameInsert = formatv("[{0}]", SectionName).str();
P.formatLine("SC{5} | mod = {2}, {0}, size = {1}, data crc = {3}, reloc "
"crc = {4}",
formatSegmentOffset(SC.ISect, SC.Off), fmtle(SC.Size),
fmtle(SC.Imod), fmtle(SC.DataCrc), fmtle(SC.RelocCrc),
fmt_align(NameInsert, AlignStyle::Left, MaxNameLen + 2));
AutoIndent Indent(P, MaxNameLen + 2);
P.formatLine(" {0}",
formatSectionCharacteristics(P.getIndentLevel() + 6,
SC.Characteristics, 3, " | "));
}
void visit(const SectionContrib2 &SC) override {
P.formatLine("SC2 | mod = {2}, {0}, size = {1}, data crc = {3}, reloc "
P.formatLine(
"SC2[{6}] | mod = {2}, {0}, size = {1}, data crc = {3}, reloc "
"crc = {4}, coff section = {5}",
formatSegmentOffset(SC.Base.ISect, SC.Base.Off),
fmtle(SC.Base.Size), fmtle(SC.Base.Imod),
fmtle(SC.Base.DataCrc), fmtle(SC.Base.RelocCrc),
formatSegmentOffset(SC.Base.ISect, SC.Base.Off), fmtle(SC.Base.Size),
fmtle(SC.Base.Imod), fmtle(SC.Base.DataCrc), fmtle(SC.Base.RelocCrc),
fmtle(SC.ISectCoff));
P.formatLine(" {0}", formatSectionCharacteristics(
P.getIndentLevel() + 6,
@ -1174,9 +1206,12 @@ Error DumpOutputStyle::dumpSectionContribs() {
private:
LinePrinter &P;
uint32_t MaxNameLen;
ArrayRef<std::string> Names;
};
Visitor V(P);
std::vector<std::string> Names = getSectionNames(File);
Visitor V(P, makeArrayRef(Names));
Dbi.visitSectionContributions(V);
return Error::success();
}