Patch to a fix dwarf relocation problem on ARM. One-line fix plus the test where it used to break.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127757 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 15330c2..cb542aef 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -3272,7 +3272,9 @@
case dwarf::DW_AT_location: {
if (UseDotDebugLocEntry.count(Die) != 0) {
DIELabel *L = cast<DIELabel>(Values[i]);
- Asm->EmitLabelDifference(L->getValue(), DwarfDebugLocSectionSym, 4);
+ // Emitting reference to label directly, so the assembler can
+ // emit the relocations and the offset automatically.
+ Asm->EmitReference(L->getValue(), dwarf::DW_EH_PE_udata4);
} else
Values[i]->EmitValue(Asm, Form);
break;
@@ -3623,6 +3625,7 @@
if (DotDebugLocEntries.empty())
return;
+ // Group debug entries.
for (SmallVector<DotDebugLocEntry, 4>::iterator
I = DotDebugLocEntries.begin(), E = DotDebugLocEntries.end();
I != E; ++I) {
@@ -3631,7 +3634,7 @@
Entry.Merge(I+1);
}
- // Start the dwarf loc section.
+ // Start the dwarf location section.
Asm->OutStreamer.SwitchSection(
Asm->getObjFileLowering().getDwarfLocSection());
unsigned char Size = Asm->getTargetData().getPointerSize();