lib/Target/XCore/XCoreTargetAsmInfo.cpp

   1 //===-- XCoreTargetAsmInfo.cpp - XCore 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 contains the declarations of the XCoreTargetAsmInfo properties.
  11 // We use the small section flag for the CP relative and DP relative
  12 // flags. If a section is small and writable then it is DP relative. If a
  13 // section is small and not writable then it is CP relative.
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #include "XCoreTargetAsmInfo.h"
  18 #include "XCoreTargetMachine.h"
  19 #include "llvm/GlobalVariable.h"
  20 #include "llvm/ADT/StringExtras.h"
  21
  22 using namespace llvm;
  23
  24 XCoreTargetAsmInfo::XCoreTargetAsmInfo(const XCoreTargetMachine &TM)
  25   : ELFTargetAsmInfo(TM) {
  26   SupportsDebugInformation = true;
  27   TextSection = getUnnamedSection("\t.text", SectionFlags::Code);
  28   DataSection = getNamedSection("\t.dp.data", SectionFlags::Writeable |
  29                                 SectionFlags::Small);
  30   BSSSection_  = getNamedSection("\t.dp.bss", SectionFlags::Writeable |
  31                                  SectionFlags::BSS | SectionFlags::Small);
  32
  33   // TLS globals are lowered in the backend to arrays indexed by the current
  34   // thread id. After lowering they require no special handling by the linker
  35   // and can be placed in the standard data / bss sections.
  36   TLSDataSection = DataSection;
  37   TLSBSSSection = BSSSection_;
  38
  39   if (TM.getSubtargetImpl()->isXS1A()) {
  40     ReadOnlySection = getNamedSection("\t.dp.rodata", SectionFlags::None |
  41                                       SectionFlags::Writeable |
  42                                       SectionFlags::Small);
  43   } else {
  44     ReadOnlySection = getNamedSection("\t.cp.rodata", SectionFlags::None |
  45                                       SectionFlags::Small);
  46   }
  47   Data16bitsDirective = "\t.short\t";
  48   Data32bitsDirective = "\t.long\t";
  49   Data64bitsDirective = 0;
  50   ZeroDirective = "\t.space\t";
  51   CommentString = "#";
  52   ConstantPoolSection = "\t.section\t.cp.rodata,\"ac\",@progbits";
  53   JumpTableDataSection = "\t.section\t.dp.data,\"awd\",@progbits";
  54   PrivateGlobalPrefix = ".L";
  55   AscizDirective = ".asciiz";
  56   WeakDefDirective = "\t.weak\t";
  57   WeakRefDirective = "\t.weak\t";
  58   SetDirective = "\t.set\t";
  59
  60   // Debug
  61   HasLEB128 = true;
  62   AbsoluteDebugSectionOffsets = true;
  63
  64   DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
  65   DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
  66   DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
  67   DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
  68   DwarfPubNamesSection = "\t.section\t.debug_pubnames,\"\",@progbits";
  69   DwarfPubTypesSection = "\t.section\t.debug_pubtypes,\"\",@progbits";
  70   DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
  71   DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
  72   DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
  73   DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
  74   DwarfMacroInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
  75 }
  76