MC: Implement support for new .addrsig and .addrsig_sym directives.

Part of the address-significance tables proposal:
http://lists.llvm.org/pipermail/llvm-dev/2018-May/123514.html

Differential Revision: https://reviews.llvm.org/D47744

llvm-svn: 337328

1 files changed, 9 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp
index 9d536883b98..4b6dad5ce8f 100644
--- a/llvm/lib/MC/MCObjectStreamer.cpp
+++ b/llvm/lib/MC/MCObjectStreamer.cpp
@@ -660,6 +660,15 @@ void MCObjectStreamer::EmitFileDirective(StringRef Filename) {
   getAssembler().addFileName(Filename);
 }
 
+void MCObjectStreamer::EmitAddrsig() {
+  getAssembler().getWriter().emitAddrsigSection();
+}
+
+void MCObjectStreamer::EmitAddrsigSym(const MCSymbol *Sym) {
+  getAssembler().registerSymbol(*Sym);
+  getAssembler().getWriter().addAddrsigSymbol(Sym);
+}
+
 void MCObjectStreamer::FinishImpl() {
   getContext().RemapDebugPaths();