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https://github.com/c64scene-ar/llvm-6502.git
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72c0d7fdd3
This introduces a new library to LLVM: libDebugInfo. It will provide debug information parsing to LLVM. Much of the design and some of the code is taken from the LLDB project. It also contains an llvm-dwarfdump tool that can dump the abbrevs and DIEs from an object file. It can be used to write tests for DWARF input and output easily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139627 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.3 KiB
C++
44 lines
1.3 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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using namespace llvm;
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void DWARFContext::dump(raw_ostream &OS) {
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getDebugAbbrev()->dump(OS);
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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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}
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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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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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