Add a MCTargetStreamer interface.

This patch fixes an old FIXME by creating a MCTargetStreamer interface
and moving the target specific functions for ARM, Mips and PPC to it.

The ARM streamer is still declared in a common place because it is
used from lib/CodeGen/ARMException.cpp, but the Mips and PPC are
completely hidden in the corresponding Target directories.

I will send an email to llvmdev with instructions on how to use this.

llvm-svn: 192181

1 files changed, 11 insertions, 6 deletions

diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp
index cbcd5fd0211..7fa6695253e 100644
--- a/llvm/lib/MC/MCObjectStreamer.cpp
+++ b/llvm/lib/MC/MCObjectStreamer.cpp
@@ -22,17 +22,22 @@
 #include "llvm/Support/ErrorHandling.h"
 using namespace llvm;
 
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
-                                   raw_ostream &OS, MCCodeEmitter *Emitter_)
-    : MCStreamer(Context),
+MCObjectStreamer::MCObjectStreamer(MCContext &Context,
+                                   MCTargetStreamer *TargetStreamer,
+                                   MCAsmBackend &TAB, raw_ostream &OS,
+                                   MCCodeEmitter *Emitter_)
+    : MCStreamer(Context, TargetStreamer),
       Assembler(new MCAssembler(Context, TAB, *Emitter_,
                                 *TAB.createObjectWriter(OS), OS)),
       CurSectionData(0) {}
 
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
-                                   raw_ostream &OS, MCCodeEmitter *Emitter_,
+MCObjectStreamer::MCObjectStreamer(MCContext &Context,
+                                   MCTargetStreamer *TargetStreamer,
+                                   MCAsmBackend &TAB, raw_ostream &OS,
+                                   MCCodeEmitter *Emitter_,
                                    MCAssembler *_Assembler)
-    : MCStreamer(Context), Assembler(_Assembler), CurSectionData(0) {}
+    : MCStreamer(Context, TargetStreamer), Assembler(_Assembler),
+      CurSectionData(0) {}
 
 MCObjectStreamer::~MCObjectStreamer() {
   delete &Assembler->getBackend();