[Lldb-commits] [PATCH] D35734: Don't allow LLDB to try and parse .debug_types

Phabricator via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Mon Jul 24 11:42:17 PDT 2017


This revision was automatically updated to reflect the committed changes.
Closed by commit rL308911: Don't allow .debug_types to be parsed as LLDB can crash when enums are not able… (authored by gclayton).

Changed prior to commit:
  https://reviews.llvm.org/D35734?vs=107710&id=107936#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D35734

Files:
  lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp


Index: lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
===================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -497,6 +497,21 @@
     if (section_list == NULL)
       return 0;
 
+    // On non Apple platforms we might have .debug_types debug info that
+    // is created by using "-fdebug-types-section". LLDB currently will try
+    // to load this debug info, but it causes crashes during debugging when
+    // types are missing since it doesn't know how to parse the info in
+    // the .debug_types type units. This causes all complex debug info
+    // types to be unresolved. Because this causes LLDB to crash and since
+    // it really doesn't provide a solid debuggiung experience, we should
+    // disable trying to debug this kind of DWARF until support gets
+    // added or deprecated.
+    if (section_list->FindSectionByName(ConstString(".debug_types"))) {
+      m_obj_file->GetModule()->ReportWarning(
+        "lldb doesn’t support .debug_types debug info");
+      return 0;
+    }
+
     uint64_t debug_abbrev_file_size = 0;
     uint64_t debug_info_file_size = 0;
     uint64_t debug_line_file_size = 0;


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D35734.107936.patch
Type: text/x-patch
Size: 1294 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/lldb-commits/attachments/20170724/770c78f6/attachment.bin>


More information about the lldb-commits mailing list