Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121152 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MachObjectWriter.cpp b/lib/MC/MachObjectWriter.cpp
index d31ecef..1eb7c1c 100644
--- a/lib/MC/MachObjectWriter.cpp
+++ b/lib/MC/MachObjectWriter.cpp
@@ -884,6 +884,17 @@
// FIXME: Currently, these are never generated (see code below). I cannot
// find a case where they are actually emitted.
Type = macho::RIT_Vanilla;
+ } else if (SD->getSymbol().isVariable()) {
+ const MCExpr *Value = SD->getSymbol().getVariableValue();
+ int64_t Res;
+ bool isAbs = Value->EvaluateAsAbsolute(Res, Layout, SectionAddress);
+ if (isAbs) {
+ FixedValue = Res;
+ return;
+ } else {
+ report_fatal_error("unsupported relocation of variable '" +
+ SD->getSymbol().getName() + "'");
+ }
} else {
// Check whether we need an external or internal relocation.
if (doesSymbolRequireExternRelocation(SD)) {