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-rw-r--r--include/llvm/MC/MCStreamer.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h
index 793af5d4c0..54de8a3107 100644
--- a/include/llvm/MC/MCStreamer.h
+++ b/include/llvm/MC/MCStreamer.h
@@ -6,6 +6,10 @@
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
+//
+// This file declares the MCStreamer class.
+//
+//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCSTREAMER_H
#define LLVM_MC_MCSTREAMER_H
@@ -20,7 +24,15 @@ namespace llvm {
class MCSymbol;
class raw_ostream;
- /// MCStreamer - Streaming machine code generation interface.
+ /// MCStreamer - Streaming machine code generation interface. This interface
+ /// is intended to provide a programatic interface that is very similar to the
+ /// level that an assembler .s file provides. It has callbacks to emit bytes,
+ /// "emit directives", etc. The implementation of this interface retains
+ /// state to know what the current section is etc.
+ ///
+ /// There are multiple implementations of this interface: one for writing out
+ /// a .s file, and implementations that write out .o files of various formats.
+ ///
class MCStreamer {
public:
enum SymbolAttr {