[DWARF v5] Generate range list tables into the .debug_rnglists section. No support for split DWARF

and no use of DW_FORM_rnglistx with the DW_AT_ranges attribute.

Reviewer: aprantl

Differential Revision: https://reviews.llvm.org/D49214

llvm-svn: 336927

1 files changed, 9 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index 77861ad45be..9af555464d4 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -1757,3 +1757,12 @@ void DwarfUnit::addStringOffsetsStart() {
                   DU->getStringOffsetsStartSym(),
                   TLOF.getDwarfStrOffSection()->getBeginSymbol());
 }
+
+void DwarfUnit::addRnglistsBase() {
+  assert(DD->getDwarfVersion() >= 5 &&
+         "DW_AT_rnglists_base requires DWARF version 5 or later");
+  const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
+  addSectionLabel(getUnitDie(), dwarf::DW_AT_rnglists_base,
+                  DU->getRnglistsTableBaseSym(),
+                  TLOF.getDwarfRnglistsSection()->getBeginSymbol());
+}