[Lldb-commits] [PATCH] D51935: [LLDB] - Improve reporting source lines and variables (improved DWARF5 support).

Greg Clayton via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Wed Sep 12 10:30:35 PDT 2018

clayborg requested changes to this revision.
clayborg added a comment.

Patch looks good. A few fixes mentioned in inlined comments. And I am unsure how the test suite will run with various compilers if they don't support the -gdwarf-5 flag. We might need to run obj2yaml on a binary and then yaml2obj it for the test to ensure we can run the test. We might be able to just symbolicate a few addresses in the test instead of requiring us to run something.

Comment at: include/lldb/lldb-enumerations.h:675
   eSectionTypeDWARFDebugNames, // DWARF v5 .debug_names
+  eSectionTypeDWARFDebugLineStr, // DWARF v5 .debug_line_str
Add this after the eSectionTypeOther for backward compatibility.

Comment at: source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp:442
+        ReadDescriptors(debug_line_data, offset_ptr);
+    uint8_t dirCount = debug_line_data.GetU8(offset_ptr);
+    for (int i = 0; i < dirCount; ++i) {
We might verify that this is indeed correct by looking at compiler sources. Seems weird to limit dirs to 255


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