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//===-- DWARFContext.cpp --------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DWARFContext.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
void DWARFContext::dump(raw_ostream &OS) {
OS << ".debug_abbrev contents:\n";
getDebugAbbrev()->dump(OS);
OS << "\n.debug_info contents:\n";
for (unsigned i = 0, e = getNumCompileUnits(); i != e; ++i)
getCompileUnitAtIndex(i)->dump(OS);
OS << "\n.debug_aranges contents:\n";
DataExtractor arangesData(getARangeSection(), isLittleEndian(), 0);
uint32_t offset = 0;
DWARFDebugArangeSet set;
while (set.extract(arangesData, &offset))
set.dump(OS);
OS << "\n.debug_lines contents:\n";
// FIXME: must be done per CU.
DataExtractor lineData(getLineSection(), isLittleEndian(), /*FIXME*/8);
DWARFDebugLine::dump(lineData, OS);
OS << "\n.debug_str contents:\n";
DataExtractor strData(getStringSection(), isLittleEndian(), 0);
offset = 0;
uint32_t lastOffset = 0;
while (const char *s = strData.getCStr(&offset)) {
OS << format("0x%8.8x: \"%s\"\n", lastOffset, s);
lastOffset = offset;
}
}
const DWARFDebugAbbrev *DWARFContext::getDebugAbbrev() {
if (Abbrev)
return Abbrev.get();
DataExtractor abbrData(getAbbrevSection(), isLittleEndian(), 0);
Abbrev.reset(new DWARFDebugAbbrev());
Abbrev->parse(abbrData);
return Abbrev.get();
}
const DWARFDebugAranges *DWARFContext::getDebugAranges() {
if (Aranges)
return Aranges.get();
DataExtractor arangesData(getARangeSection(), isLittleEndian(), 0);
Aranges.reset(new DWARFDebugAranges());
Aranges->extract(arangesData);
if (Aranges->isEmpty()) // No aranges in file, generate them from the DIEs.
Aranges->generate(this);
return Aranges.get();
}
const DWARFDebugLine *DWARFContext::getDebugLine() {
if (Line)
return Line.get();
DataExtractor lineData(getLineSection(), isLittleEndian(), 0);
Line.reset(new DWARFDebugLine());
Line->parse(lineData);
return Line.get();
}
void DWARFContext::parseCompileUnits() {
uint32_t offset = 0;
const DataExtractor &debug_info_data = DataExtractor(getInfoSection(),
isLittleEndian(), 0);
while (debug_info_data.isValidOffset(offset)) {
CUs.push_back(DWARFCompileUnit(*this));
if (!CUs.back().extract(debug_info_data, &offset)) {
CUs.pop_back();
break;
}
offset = CUs.back().getNextCompileUnitOffset();
}
}
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