MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong

[oota-llvm.git] / lib / MC / MCObjectStreamer.cpp

diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp
index 506c963c5914cc367099385575926d265d5c7b97..cbc66f1cf9b8415b99b53f9a8e375091d08e9f5a 100644 (file)
--- a/lib/MC/MCObjectStreamer.cpp
+++ b/lib/MC/MCObjectStreamer.cpp
@@ -12,19 +12,20 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCDwarf.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmInfo.h"
 using namespace llvm;
 
 MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
-                                   raw_ostream &_OS, MCCodeEmitter *_Emitter,
-                                   bool _PadSectionToAlignment)
-  : MCStreamer(Context), Assembler(new MCAssembler(Context, TAB,
-                                                   *_Emitter,
-                                                   _PadSectionToAlignment,
-                                                   _OS)),
+                                   raw_ostream &OS, MCCodeEmitter *Emitter_)
+  : MCStreamer(Context),
+    Assembler(new MCAssembler(Context, TAB,
+                              *Emitter_, *TAB.createObjectWriter(OS),
+                              OS)),
     CurSectionData(0)
 {
 }
@@ -32,6 +33,7 @@ MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
 MCObjectStreamer::~MCObjectStreamer() {
   delete &Assembler->getBackend();
   delete &Assembler->getEmitter();
+  delete &Assembler->getWriter();
   delete Assembler;
 }
 
@@ -76,23 +78,21 @@ const MCExpr *MCObjectStreamer::AddValueSymbols(const MCExpr *Value) {
   return Value;
 }
 
-void MCObjectStreamer::EmitValue(const MCExpr *Value, unsigned Size,
-                                 unsigned AddrSpace, bool UseSet) {
+void MCObjectStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+                                     bool isPCRel, unsigned AddrSpace) {
   assert(AddrSpace == 0 && "Address space must be 0!");
   MCDataFragment *DF = getOrCreateDataFragment();
 
   // Avoid fixups when possible.
   int64_t AbsValue;
-  if (AddValueSymbols(Value)->EvaluateAsAbsolute(AbsValue)) {
-    // FIXME: Endianness assumption.
-    for (unsigned i = 0; i != Size; ++i)
-      DF->getContents().push_back(uint8_t(AbsValue >> (i * 8)));
-  } else {
-    DF->addFixup(MCFixup::Create(DF->getContents().size(),
-                                 AddValueSymbols(Value),
-                                 MCFixup::getKindForSize(Size, false)));
-    DF->getContents().resize(DF->getContents().size() + Size, 0);
+  if (AddValueSymbols(Value)->EvaluateAsAbsolute(AbsValue, getAssembler())) {
+    EmitIntValue(AbsValue, Size, AddrSpace);
+    return;
   }
+  DF->addFixup(MCFixup::Create(DF->getContents().size(),
+                               AddValueSymbols(Value),
+                               MCFixup::getKindForSize(Size, isPCRel)));
+  DF->getContents().resize(DF->getContents().size() + Size, 0);
 }
 
 void MCObjectStreamer::EmitLabel(MCSymbol *Symbol) {
@@ -115,11 +115,21 @@ void MCObjectStreamer::EmitLabel(MCSymbol *Symbol) {
 
 void MCObjectStreamer::EmitULEB128Value(const MCExpr *Value,
                                         unsigned AddrSpace) {
+  int64_t IntValue;
+  if (Value->EvaluateAsAbsolute(IntValue, getAssembler())) {
+    EmitULEB128IntValue(IntValue, AddrSpace);
+    return;
+  }
   new MCLEBFragment(*Value, false, getCurrentSectionData());
 }
 
 void MCObjectStreamer::EmitSLEB128Value(const MCExpr *Value,
                                         unsigned AddrSpace) {
+  int64_t IntValue;
+  if (Value->EvaluateAsAbsolute(IntValue, getAssembler())) {
+    EmitSLEB128IntValue(IntValue, AddrSpace);
+    return;
+  }
   new MCLEBFragment(*Value, true, getCurrentSectionData());
 }
 
@@ -183,7 +193,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
                                                 const MCSymbol *LastLabel,
                                                 const MCSymbol *Label) {
   if (!LastLabel) {
-    int PointerSize = getAssembler().getBackend().getPointerSize();
+    int PointerSize = getContext().getTargetAsmInfo().getPointerSize();
     EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
     return;
   }
@@ -196,7 +206,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
     MCBinaryExpr::Create(MCBinaryExpr::Sub, LabelRef, LastLabelRef,
                          getContext());
   int64_t Res;
-  if (AddrDelta->EvaluateAsAbsolute(Res, &getAssembler())) {
+  if (AddrDelta->EvaluateAsAbsolute(Res, getAssembler())) {
     MCDwarfLineAddr::Emit(this, LineDelta, Res);
     return;
   }
@@ -209,5 +219,9 @@ void MCObjectStreamer::EmitValueToOffset(const MCExpr *Offset,
 }
 
 void MCObjectStreamer::Finish() {
+  // Dump out the dwarf file & directory tables and line tables.
+  if (getContext().hasDwarfFiles())
+    MCDwarfFileTable::Emit(this);
+
   getAssembler().Finish();
 }