AsmParser: Add support for the .purgem directive.
[oota-llvm.git] / lib / MC / MCAsmInfoDarwin.cpp
index d6a4e740ed5197585d9230e045c810b18eea2345..4d675929e1ea416488071cc5305fa2583e786820 100644 (file)
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCAsmInfoDarwin.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCStreamer.h"
 using namespace llvm;
 
+void MCAsmInfoDarwin::anchor() { }
+
 MCAsmInfoDarwin::MCAsmInfoDarwin() {
   // Common settings for all Darwin targets.
   // Syntax:
   GlobalPrefix = "_";
   PrivateGlobalPrefix = "L";
-  LinkerPrivateGlobalPrefix = "l";  // Marker for some ObjC metadata
-  NeedsSet = true;
-  NeedsIndirectEncoding = true;
+  LinkerPrivateGlobalPrefix = "l";
   AllowQuotesInName = true;
   HasSingleParameterDotFile = false;
+  HasSubsectionsViaSymbols = true;
 
   AlignmentIsInBytes = false;
+  COMMDirectiveAlignmentIsInBytes = false;
   InlineAsmStart = " InlineAsm Start";
   InlineAsmEnd = " InlineAsm End";
 
   // Directives:
   WeakDefDirective = "\t.weak_definition ";
   WeakRefDirective = "\t.weak_reference ";
-  HiddenDirective = "\t.private_extern ";
-  LCOMMDirective = "\t.lcomm\t";
   ZeroDirective = "\t.space\t";  // ".space N" emits N zeros.
-  ZeroFillDirective = "\t.zerofill\t";  // Uses .zerofill
-  SetDirective = "\t.set";
-  ProtectedDirective = "\t.globl\t";
+  HasMachoZeroFillDirective = true;  // Uses .zerofill
+  HasMachoTBSSDirective = true; // Uses .tbss
+  HasStaticCtorDtorReferenceInStaticMode = true;
+
+  CodeBegin = "L$start$code$";
+  DataBegin = "L$start$data$";
+  JT8Begin  = "L$start$jt8$";
+  JT16Begin = "L$start$jt16$";
+  JT32Begin = "L$start$jt32$";
+  SupportsDataRegions = true;
+
+  // FIXME: Darwin 10 and newer don't need this.
+  LinkerRequiresNonEmptyDwarfLines = true;
+
+  // FIXME: Change this once MC is the system assembler.
+  HasAggressiveSymbolFolding = false;
+
+  HiddenVisibilityAttr = MCSA_PrivateExtern;
+  HiddenDeclarationVisibilityAttr = MCSA_Invalid;
+
+  // Doesn't support protected visibility.
+  ProtectedVisibilityAttr = MCSA_Invalid;
+
   HasDotTypeDotSizeDirective = false;
-  UsedDirective = "\t.no_dead_strip\t";
-
-  // _foo.eh symbols are currently always exported so that the linker knows
-  // about them.  This is not necessary on 10.6 and later, but it
-  // doesn't hurt anything.
-  // FIXME: I need to get this from Triple.
-  Is_EHSymbolPrivate = false;
-  GlobalEHDirective = "\t.globl\t";
-  SupportsWeakOmittedEHFrame = false;
-}
+  HasNoDeadStrip = true;
+  HasSymbolResolver = true;
 
+  DwarfRequiresRelocationForSectionOffset = false;
+  DwarfUsesLabelOffsetForRanges = false;
+  DwarfUsesRelocationsForStringPool = false;
+}