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Extend the dumping infrastructure to deal with additional

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sections for debug info. These are some of the dwo sections from the
DWARF5 split debug info proposal. Update the fission-cu.ll testcase
to show what we should be able to dump more of now.

Work in progress: Ultimately the relocations will be gone for the
dwo section and the strings will be a different form (as well as
the rest of the sections will be included).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171428 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2013-01-02 23:52:13 +00:00
parent 278bac3fba
commit 82de10a34c
7 changed files with 160 additions and 31 deletions
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13
lib/DebugInfo/DWARFCompileUnit.cpp
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@@ -17,8 +17,7 @@ using namespace llvm;
using namespace dwarf;
DataExtractor DWARFCompileUnit::getDebugInfoExtractor() const {
return DataExtractor(Context.getInfoSection(),
Context.isLittleEndian(), getAddressByteSize());
return DataExtractor(InfoSection, isLittleEndian, AddrSize);
}
bool DWARFCompileUnit::extract(DataExtractor debug_info, uint32_t *offset_ptr) {
@@ -28,7 +27,6 @@ bool DWARFCompileUnit::extract(DataExtractor debug_info, uint32_t *offset_ptr) {
if (debug_info.isValidOffset(*offset_ptr)) {
uint64_t abbrOffset;
const DWARFDebugAbbrev *abbr = Context.getDebugAbbrev();
Length = debug_info.getU32(offset_ptr);
Version = debug_info.getU16(offset_ptr);
abbrOffset = debug_info.getU32(offset_ptr);
@@ -36,11 +34,11 @@ bool DWARFCompileUnit::extract(DataExtractor debug_info, uint32_t *offset_ptr) {
bool lengthOK = debug_info.isValidOffset(getNextCompileUnitOffset()-1);
bool versionOK = DWARFContext::isSupportedVersion(Version);
bool abbrOffsetOK = Context.getAbbrevSection().size() > abbrOffset;
bool abbrOffsetOK = AbbrevSection.size() > abbrOffset;
bool addrSizeOK = AddrSize == 4 || AddrSize == 8;
if (lengthOK && versionOK && addrSizeOK && abbrOffsetOK && abbr != NULL) {
Abbrevs = abbr->getAbbreviationDeclarationSet(abbrOffset);
if (lengthOK && versionOK && addrSizeOK && abbrOffsetOK && Abbrev != NULL) {
Abbrevs = Abbrev->getAbbreviationDeclarationSet(abbrOffset);
return true;
}
@@ -79,8 +77,7 @@ bool DWARFCompileUnit::extractRangeList(uint32_t RangeListOffset,
DWARFDebugRangeList &RangeList) const {
// Require that compile unit is extracted.
assert(DieArray.size() > 0);
DataExtractor RangesData(Context.getRangeSection(),
Context.isLittleEndian(), AddrSize);
DataExtractor RangesData(RangeSection, isLittleEndian, AddrSize);
return RangeList.extract(RangesData, &RangeListOffset);
}