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Modify llvm-readobj to dump symbol record bytes.

Browse Source 
This will help us study the format of individual symbol
records more closely.

Differential Revision: http://reviews.llvm.org/D7664
Reviewed by: Timur Iskhodzhanov

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229730 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner
2015-02-18 19:32:05 +00:00
parent bc20f6088d
commit 23719010db
10 changed files with 62 additions and 43 deletions
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33
tools/llvm-readobj/COFFDumper.cpp
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@ -71,7 +71,7 @@ private:
void printBaseOfDataField(const pe32_header *Hdr);
void printBaseOfDataField(const pe32plus_header *Hdr);
void printCodeViewLineTables(const SectionRef &Section);
void printCodeViewDebugInfo(const SectionRef &Section);
void printCodeViewSymbolsSubsection(StringRef Subsection,
const SectionRef &Section,
@ -469,7 +469,7 @@ void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) {
void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
void COFFDumper::printCodeViewDebugInfo(const SectionRef &Section) {
StringRef Data;
if (error(Section.getContents(Data)))
return;
@ -477,7 +477,7 @@ void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
SmallVector<StringRef, 10> FunctionNames;
StringMap<StringRef> FunctionLineTables;
ListScope D(W, "CodeViewLineTables");
ListScope D(W, "CodeViewDebugInfo");
{
// FIXME: Add more offset correctness checks.
DataExtractor DE(Data, true, 4);
@ -503,14 +503,17 @@ void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
return;
}
// Print the raw contents to simplify debugging if anything goes wrong
// afterwards.
StringRef Contents = Data.substr(Offset, PayloadSize);
W.printBinaryBlock("Contents", Contents);
if (opts::CodeViewSubsectionBytes) {
// Print the raw contents to simplify debugging if anything goes wrong
// afterwards.
W.printBinaryBlock("Contents", Contents);
}
switch (SubSectionType) {
case COFF::DEBUG_SYMBOL_SUBSECTION:
printCodeViewSymbolsSubsection(Contents, Section, Offset);
if (opts::SectionSymbols)
printCodeViewSymbolsSubsection(Contents, Section, Offset);
break;
case COFF::DEBUG_LINE_TABLE_SUBSECTION: {
// Holds a PC to file:line table. Some data to parse this subsection is
@ -695,10 +698,20 @@ void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection,
InFunctionScope = false;
break;
}
default:
default: {
if (opts::CodeViewSubsectionBytes) {
ListScope S(W, "Record");
W.printHex("Size", Size);
W.printHex("Type", Type);
StringRef Contents = DE.getData().substr(Offset, Size);
W.printBinaryBlock("Contents", Contents);
}
Offset += Size;
break;
}
}
}
if (InFunctionScope)
@ -747,8 +760,8 @@ void COFFDumper::printSections() {
}
}
if (Name == ".debug$S" && opts::CodeViewLineTables)
printCodeViewLineTables(Sec);
if (Name == ".debug$S" && opts::CodeView)
printCodeViewDebugInfo(Sec);
if (opts::SectionData &&
!(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {