Add support for emitting a stub DW_AT_GNU_dwo_id as part of the
DWARF5 split dwarf proposal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174350 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 13ad353..6b19c5a 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -685,6 +685,11 @@
if (!FirstCU)
FirstCU = NewCU;
+
+ // This should be a unique identifier when we want to build .dwp files.
+ if (useSplitDwarf())
+ NewCU->addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8, 0);
+
if (useSplitDwarf() && !SkeletonCU)
SkeletonCU = constructSkeletonCU(N);
@@ -2450,7 +2455,8 @@
StringRef FN = sys::path::filename(T);
NewCU->addLocalString(Die, dwarf::DW_AT_GNU_dwo_name, FN);
- // FIXME: We also need DW_AT_dwo_id.
+ // This should be a unique identifier when we want to build .dwp files.
+ NewCU->addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8, 0);
// FIXME: The addr base should be relative for each compile unit, however,
// this one is going to be 0 anyhow.