DebugInfo: Add metadata support for disabling DWARF pub sections
In cases where the debugger load time is a worthwhile tradeoff (or less
costly - such as loading from a DWP instead of a variety of DWOs
(possibly over a high-latency/distributed filesystem)) against object
file size, it can be reasonable to disable pubnames and corresponding
gdb-index creation in the linker.
A backend-flag version of this was implemented for NVPTX in
D44385/r327994 - which was fine for NVPTX which wouldn't mix-and-match
CUs. Now that it's going to be a user-facing option (likely powered by
"-gno-pubnames", the same as GCC) it should be encoded in the
DICompileUnit so it can vary per-CU.
After this, likely the NVPTX support should be migrated to the metadata
& the previous flag implementation should be removed.
Reviewers: aprantl
Differential Revision: https://reviews.llvm.org/D50213
llvm-svn: 339939
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index 011f654..7335a0b 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -795,7 +795,7 @@
IsImplementation = CT->getRuntimeLang() == 0 || CT->isObjcClassComplete();
}
unsigned Flags = IsImplementation ? dwarf::DW_FLAG_type_implementation : 0;
- DD->addAccelType(Ty->getName(), TyDIE, Flags);
+ DD->addAccelType(*CUNode, Ty->getName(), TyDIE, Flags);
if (!Context || isa<DICompileUnit>(Context) || isa<DIFile>(Context) ||
isa<DINamespace>(Context))
@@ -1168,7 +1168,7 @@
addString(NDie, dwarf::DW_AT_name, NS->getName());
else
Name = "(anonymous namespace)";
- DD->addAccelNamespace(Name, NDie);
+ DD->addAccelNamespace(*CUNode, Name, NDie);
addGlobalName(Name, NDie, NS->getScope());
if (NS->getExportSymbols())
addFlag(NDie, dwarf::DW_AT_export_symbols);
@@ -1417,7 +1417,7 @@
addUInt(*IndexTyDie, dwarf::DW_AT_byte_size, None, sizeof(int64_t));
addUInt(*IndexTyDie, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
dwarf::DW_ATE_unsigned);
- DD->addAccelType(Name, *IndexTyDie, /*Flags*/ 0);
+ DD->addAccelType(*CUNode, Name, *IndexTyDie, /*Flags*/ 0);
return IndexTyDie;
}