lib/Target/DarwinTargetAsmInfo.cpp

   1 //===-- DarwinTargetAsmInfo.cpp - Darwin asm properties ---------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file defines target asm properties related what form asm statements
  11 // should take in general on Darwin-based targets
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/Target/DarwinTargetAsmInfo.h"
  16 using namespace llvm;
  17
  18 DarwinTargetAsmInfo::DarwinTargetAsmInfo() {
  19   // Common settings for all Darwin targets.
  20   // Syntax:
  21   GlobalPrefix = "_";
  22   PrivateGlobalPrefix = "L";
  23   LinkerPrivateGlobalPrefix = "l";  // Marker for some ObjC metadata
  24   NeedsSet = true;
  25   NeedsIndirectEncoding = true;
  26   AllowQuotesInName = true;
  27   HasSingleParameterDotFile = false;
  28
  29   // In non-PIC modes, emit a special label before jump tables so that the
  30   // linker can perform more accurate dead code stripping.  We do not check the
  31   // relocation model here since it can be overridden later.
  32   JumpTableSpecialLabelPrefix = "l";
  33
  34   // Directives:
  35   WeakDefDirective = "\t.weak_definition ";
  36   WeakRefDirective = "\t.weak_reference ";
  37   HiddenDirective = "\t.private_extern ";
  38
  39   // _foo.eh symbols are currently always exported so that the linker knows
  40   // about them.  This is not necessary on 10.6 and later, but it
  41   // doesn't hurt anything.
  42   // FIXME: I need to get this from Triple.
  43   Is_EHSymbolPrivate = false;
  44 }
  45