Debug Info: for static member variables, add AT_MIPS_linkage_name to the
definition DIE, to make old GDB happy.
We have a regression for old GDB when Clang uses DW_TAG_member to declare
static members inside a class, instead of DW_TAG_variable. This patch will fix
this regression.
rdar://problem/13291234
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176143 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 93b00fb..59e433b 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1348,9 +1348,15 @@
}
// Add linkage name.
StringRef LinkageName = GV.getLinkageName();
- if (!LinkageName.empty() && isGlobalVariable)
+ if (!LinkageName.empty() && isGlobalVariable) {
addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name,
getRealLinkageName(LinkageName));
+ // To make old GDB happy, for static member variables, we add
+ // AT_MIPS_linkage_name to the definition DIE as well.
+ if (IsStaticMember && VariableSpecDIE)
+ addString(VariableSpecDIE, dwarf::DW_AT_MIPS_linkage_name,
+ getRealLinkageName(LinkageName));
+ }
} else if (const ConstantInt *CI =
dyn_cast_or_null<ConstantInt>(GV.getConstant())) {
// AT_const_value was added when the static memeber was created. To avoid