[Lldb-commits] [PATCH] D106355: [DWARF5] Only fallback to manual index if no entry was found

Jan Kratochvil via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Thu Jul 29 07:17:24 PDT 2021


This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG2e9853e0e9ff: [DWARF5] Only fallback to manual index if no entry was found (authored by kimanh, committed by jankratochvil).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106355/new/

https://reviews.llvm.org/D106355

Files:
  lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp


Index: lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
===================================================================
--- lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
+++ lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
@@ -125,6 +125,7 @@
 void DebugNamesDWARFIndex::GetGlobalVariables(
     const DWARFUnit &cu, llvm::function_ref<bool(DWARFDIE die)> callback) {
   uint64_t cu_offset = cu.GetOffset();
+  bool found_entry_for_cu = false;
   for (const DebugNames::NameIndex &ni: *m_debug_names_up) {
     for (DebugNames::NameTableEntry nte: ni) {
       uint64_t entry_offset = nte.getEntryOffset();
@@ -135,6 +136,7 @@
         if (entry_or->getCUOffset() != cu_offset)
           continue;
 
+        found_entry_for_cu = true;
         if (!ProcessEntry(*entry_or, callback,
                           llvm::StringRef(nte.getString())))
           return;
@@ -142,8 +144,10 @@
       MaybeLogLookupError(entry_or.takeError(), ni, nte.getString());
     }
   }
-
-  m_fallback.GetGlobalVariables(cu, callback);
+  // If no name index for that particular CU was found, fallback to
+  // creating the manual index.
+  if (!found_entry_for_cu)
+    m_fallback.GetGlobalVariables(cu, callback);
 }
 
 void DebugNamesDWARFIndex::GetCompleteObjCClass(


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