Move .ident handling to MCStreamer.

No functionality change, but exposes the API so that codegen can use it too.

Patch by Katya Romanova.

llvm-svn: 192757

1 files changed, 16 insertions, 1 deletions

diff --git a/llvm/lib/MC/MCELFStreamer.cpp b/llvm/lib/MC/MCELFStreamer.cpp
index c16a61d2b69..3f6c62c0625 100644
--- a/llvm/lib/MC/MCELFStreamer.cpp
+++ b/llvm/lib/MC/MCELFStreamer.cpp
@@ -329,7 +329,22 @@ void MCELFStreamer::EmitFileDirective(StringRef Filename) {
   SD.setFlags(ELF_STT_File | ELF_STB_Local | ELF_STV_Default);
 }
 
-void  MCELFStreamer::fixSymbolsInTLSFixups(const MCExpr *expr) {
+void MCELFStreamer::EmitIdent(StringRef IdentString) {
+  const MCSection *Comment = getAssembler().getContext().getELFSection(
+      ".comment", ELF::SHT_PROGBITS, ELF::SHF_MERGE | ELF::SHF_STRINGS,
+      SectionKind::getReadOnly(), 1, "");
+  PushSection();
+  SwitchSection(Comment);
+  if (!SeenIdent) {
+    EmitIntValue(0, 1);
+    SeenIdent = true;
+  }
+  EmitBytes(IdentString);
+  EmitIntValue(0, 1);
+  PopSection();
+}
+
+void MCELFStreamer::fixSymbolsInTLSFixups(const MCExpr *expr) {
   switch (expr->getKind()) {
   case MCExpr::Target:
     cast<MCTargetExpr>(expr)->fixELFSymbolsInTLSFixups(getAssembler());