dwarfdump: Added macro support to llvm-dwarfdump tool.

Added "macro" option to "-debug-dump" flag, which trigger parsing and dumping of the ".debug_macinfo" section.

Differential Revision: http://reviews.llvm.org/D14294

llvm-svn: 252866

1 files changed, 16 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
index ac92a632b58..f4624851737 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
@@ -127,6 +127,11 @@ void DWARFContext::dump(raw_ostream &OS, DIDumpType DumpType) {
     getDebugFrame()->dump(OS);
   }
 
+  if (DumpType == DIDT_All || DumpType == DIDT_Macro) {
+    OS << "\n.debug_macinfo contents:\n";
+    getDebugMacro()->dump(OS);
+  }
+
   uint32_t offset = 0;
   if (DumpType == DIDT_All || DumpType == DIDT_Aranges) {
     OS << "\n.debug_aranges contents:\n";
@@ -341,6 +346,16 @@ const DWARFDebugFrame *DWARFContext::getDebugFrame() {
   return DebugFrame.get();
 }
 
+const DWARFDebugMacro *DWARFContext::getDebugMacro() {
+  if (Macro)
+    return Macro.get();
+
+  DataExtractor MacinfoData(getMacinfoSection(), isLittleEndian(), 0);
+  Macro.reset(new DWARFDebugMacro());
+  Macro->parse(MacinfoData);
+  return Macro.get();
+}
+
 const DWARFLineTable *
 DWARFContext::getLineTableForUnit(DWARFUnit *U) {
   if (!Line)
@@ -611,6 +626,7 @@ DWARFContextInMemory::DWARFContextInMemory(const object::ObjectFile &Obj,
             .Case("debug_frame", &DebugFrameSection)
             .Case("debug_str", &StringSection)
             .Case("debug_ranges", &RangeSection)
+            .Case("debug_macinfo", &MacinfoSection)
             .Case("debug_pubnames", &PubNamesSection)
             .Case("debug_pubtypes", &PubTypesSection)
             .Case("debug_gnu_pubnames", &GnuPubNamesSection)