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