lib/Target/X86/X86TargetAsmInfo.cpp

   1 //===-- X86TargetAsmInfo.cpp - X86 asm properties ---------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by James M. Laskey and is distributed under the
   6 // University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the declarations of the X86TargetAsmInfo properties.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "X86TargetAsmInfo.h"
  15 #include "X86TargetMachine.h"
  16 #include "X86Subtarget.h"
  17
  18 using namespace llvm;
  19
  20 X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
  21   const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
  22
  23   // FIXME - Should be simplified.
  24
  25   switch (Subtarget->TargetType) {
  26   case X86Subtarget::isDarwin:
  27     AlignmentIsInBytes = false;
  28     GlobalPrefix = "_";
  29     if (!Subtarget->is64Bit())
  30       Data64bitsDirective = 0;       // we can't emit a 64-bit unit
  31     ZeroDirective = "\t.space\t";  // ".space N" emits N zeros.
  32     PrivateGlobalPrefix = "L";     // Marker for constant pool idxs
  33     ConstantPoolSection = "\t.const\n";
  34     JumpTableDataSection = "\t.const\n";
  35     FourByteConstantSection = "\t.literal4\n";
  36     EightByteConstantSection = "\t.literal8\n";
  37     if (Subtarget->is64Bit())
  38       SixteenByteConstantSection = "\t.literal16\n";
  39     LCOMMDirective = "\t.lcomm\t";
  40     COMMDirectiveTakesAlignment = false;
  41     HasDotTypeDotSizeDirective = false;
  42     StaticCtorsSection = ".mod_init_func";
  43     StaticDtorsSection = ".mod_term_func";
  44     InlineAsmStart = "# InlineAsm Start";
  45     InlineAsmEnd = "# InlineAsm End";
  46     SetDirective = "\t.set";
  47     UsedDirective = "\t.no_dead_strip\t";
  48
  49     NeedsSet = true;
  50     DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
  51     DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
  52     DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
  53     DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
  54     DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
  55     DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
  56     DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
  57     DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
  58     DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
  59     DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
  60     DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
  61     break;
  62   case X86Subtarget::isCygwin:
  63     GlobalPrefix = "_";
  64     COMMDirectiveTakesAlignment = false;
  65     HasDotTypeDotSizeDirective = false;
  66     StaticCtorsSection = "\t.section .ctors,\"aw\"";
  67     StaticDtorsSection = "\t.section .dtors,\"aw\"";
  68     break;
  69   case X86Subtarget::isWindows:
  70     GlobalPrefix = "_";
  71     HasDotTypeDotSizeDirective = false;
  72     break;
  73   default: break;
  74   }
  75
  76   if (Subtarget->isFlavorIntel()) {
  77     GlobalPrefix = "_";
  78     CommentString = ";";
  79
  80     PrivateGlobalPrefix = "$";
  81     AlignDirective = "\talign\t";
  82     ZeroDirective = "\tdb\t";
  83     ZeroDirectiveSuffix = " dup(0)";
  84     AsciiDirective = "\tdb\t";
  85     AscizDirective = 0;
  86     Data8bitsDirective = "\tdb\t";
  87     Data16bitsDirective = "\tdw\t";
  88     Data32bitsDirective = "\tdd\t";
  89     Data64bitsDirective = "\tdq\t";
  90     HasDotTypeDotSizeDirective = false;
  91
  92     TextSection = "_text";
  93     DataSection = "_data";
  94     SwitchToSectionDirective = "";
  95     TextSectionStartSuffix = "\tsegment 'CODE'";
  96     DataSectionStartSuffix = "\tsegment 'DATA'";
  97     SectionEndDirectiveSuffix = "\tends\n";
  98   }
  99 }
 100