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DWARF: Port support for parsing .debug_aranges section from LLDB and wire it up to llvm-dwarfdump.

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This is only one half of it, the part that caches address ranges from the DIEs when .debug_aranges is
not available will be ported soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139680 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2011-09-14 01:09:52 +00:00
parent 836623420d
commit 358f4fd9ee
8 changed files with 556 additions and 3 deletions
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22
lib/DebugInfo/DWARFContext.cpp
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@@ -8,12 +8,23 @@
//===----------------------------------------------------------------------===//
#include "DWARFContext.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);
}
const DWARFDebugAbbrev *DWARFContext::getDebugAbbrev() {
@@ -27,6 +38,17 @@ const DWARFDebugAbbrev *DWARFContext::getDebugAbbrev() {
return Abbrev.get();
}
const DWARFDebugAranges *DWARFContext::getDebugAranges() {
if (Aranges)
return Aranges.get();
DataExtractor arangesData(getARangeSection(), isLittleEndian(), 0);
Aranges.reset(new DWARFDebugAranges());
Aranges->extract(arangesData);
return Aranges.get();
}
void DWARFContext::parseCompileUnits() {
uint32_t offset = 0;
const DataExtractor &debug_info_data = DataExtractor(getInfoSection(),