llvm-dwarfdump: Add support for dumping the .debug_loc section
This is a basic implementation - we still don't have any support (that I
know of) for dumping DWARF expressions in a meaningful way, so the
location information itself is just printed as a sequence of bytes as we
do elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184361 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/DebugInfo/DWARFContext.cpp b/lib/DebugInfo/DWARFContext.cpp
index aaae952..6ecd0a7 100644
--- a/lib/DebugInfo/DWARFContext.cpp
+++ b/lib/DebugInfo/DWARFContext.cpp
@@ -35,6 +35,11 @@
getCompileUnitAtIndex(i)->dump(OS);
}
+ if (DumpType == DIDT_All || DumpType == DIDT_Loc) {
+ OS << ".debug_loc contents:\n";
+ getDebugLoc()->dump(OS);
+ }
+
if (DumpType == DIDT_All || DumpType == DIDT_Frames) {
OS << "\n.debug_frame contents:\n";
getDebugFrame()->dump(OS);
@@ -171,6 +176,18 @@
return AbbrevDWO.get();
}
+const DWARFDebugLoc *DWARFContext::getDebugLoc() {
+ if (Loc)
+ return Loc.get();
+
+ DataExtractor LocData(getLocSection(), isLittleEndian(), 0);
+ Loc.reset(new DWARFDebugLoc(locRelocMap()));
+ // assume all compile units have the same address byte size
+ if (getNumCompileUnits())
+ Loc->parse(LocData, getCompileUnitAtIndex(0)->getAddressByteSize());
+ return Loc.get();
+}
+
const DWARFDebugAranges *DWARFContext::getDebugAranges() {
if (Aranges)
return Aranges.get();
@@ -542,6 +559,7 @@
StringRef *Section = StringSwitch<StringRef*>(name)
.Case("debug_info", &InfoSection)
.Case("debug_abbrev", &AbbrevSection)
+ .Case("debug_loc", &LocSection)
.Case("debug_line", &LineSection)
.Case("debug_aranges", &ARangeSection)
.Case("debug_frame", &DebugFrameSection)
@@ -576,6 +594,7 @@
// Record relocations for the debug_info and debug_line sections.
RelocAddrMap *Map = StringSwitch<RelocAddrMap*>(RelSecName)
.Case("debug_info", &InfoRelocMap)
+ .Case("debug_loc", &LocRelocMap)
.Case("debug_info.dwo", &InfoDWORelocMap)
.Case("debug_line", &LineRelocMap)
.Default(0);