Assume .cfi_startproc is the first thing in a function. If the function is
externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.
Fixes PR10420.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 4a717ed..5295d0f 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -171,10 +171,7 @@
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection() && "Cannot emit before setting section!");
Symbol->setSection(*getCurrentSection());
-
- StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
- if (!Symbol->getName().startswith(Prefix))
- LastNonPrivate = Symbol;
+ LastSymbol = Symbol;
}
void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
@@ -194,9 +191,19 @@
if (CurFrame && !CurFrame->End)
report_fatal_error("Starting a frame before finishing the previous one!");
MCDwarfFrameInfo Frame;
- Frame.Begin = getContext().CreateTempSymbol();
- Frame.Function = LastNonPrivate;
- EmitLabel(Frame.Begin);
+
+ Frame.Function = LastSymbol;
+
+ // If the function is externally visible, we need to create a local
+ // symbol to avoid relocations.
+ StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
+ if (LastSymbol->getName().startswith(Prefix)) {
+ Frame.Begin = LastSymbol;
+ } else {
+ Frame.Begin = getContext().CreateTempSymbol();
+ EmitLabel(Frame.Begin);
+ }
+
FrameInfos.push_back(Frame);
}