lib/Target/CellSPU/SPUTargetAsmInfo.cpp

   1 //===-- SPUTargetAsmInfo.cpp - Cell SPU 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 SPUTargetAsmInfo properties.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "SPUTargetAsmInfo.h"
  15 #include "SPUTargetMachine.h"
  16 #include "llvm/Function.h"
  17 #include "llvm/Support/Compiler.h"
  18 #include "llvm/Support/Dwarf.h"
  19
  20 using namespace llvm;
  21 using namespace llvm::dwarf;
  22
  23 SPULinuxTargetAsmInfo::SPULinuxTargetAsmInfo(const SPUTargetMachine &TM) :
  24     SPUTargetAsmInfo<ELFTargetAsmInfo>(TM) {
  25   PCSymbol = ".";
  26   CommentString = "#";
  27   GlobalPrefix = "";
  28   PrivateGlobalPrefix = ".L";
  29   // This corresponds to what the gcc SPU compiler emits, for consistency.
  30   CStringSection = ".rodata.str";
  31
  32   // Has leb128, .loc and .file
  33   HasLEB128 = true;
  34   HasDotLocAndDotFile = true;
  35
  36   // BSS section needs to be emitted as ".section"
  37   BSSSection = "\t.section\t.bss";
  38   BSSSection_ = getUnnamedSection("\t.section\t.bss",
  39                                   SectionFlags::Writeable | SectionFlags::BSS,
  40                                   true);
  41
  42   SupportsDebugInformation = true;
  43   NeedsSet = true;
  44   SupportsMacInfoSection = false;
  45   DwarfAbbrevSection =  "\t.section        .debug_abbrev,\"\",@progbits";
  46   DwarfInfoSection =    "\t.section        .debug_info,\"\",@progbits";
  47   DwarfLineSection =    "\t.section        .debug_line,\"\",@progbits";
  48   DwarfFrameSection =   "\t.section        .debug_frame,\"\",@progbits";
  49   DwarfPubNamesSection = "\t.section        .debug_pubnames,\"\",@progbits";
  50   DwarfPubTypesSection = "\t.section        .debug_pubtypes,\"\",progbits";
  51   DwarfStrSection =     "\t.section        .debug_str,\"MS\",@progbits,1";
  52   DwarfLocSection =     "\t.section        .debug_loc,\"\",@progbits";
  53   DwarfARangesSection = "\t.section        .debug_aranges,\"\",@progbits";
  54   DwarfRangesSection =  "\t.section        .debug_ranges,\"\",@progbits";
  55   DwarfMacInfoSection = "\t.section        .debug_macinfo,\"\",progbits";
  56
  57   // Exception handling is not supported on CellSPU (think about it: you only
  58   // have 256K for code+data. Would you support exception handling?)
  59   SupportsExceptionHandling = false;
  60 }
  61
  62 /// PreferredEHDataFormat - This hook allows the target to select data
  63 /// format used for encoding pointers in exception handling data. Reason is
  64 /// 0 for data, 1 for code labels, 2 for function pointers. Global is true
  65 /// if the symbol can be relocated.
  66 unsigned
  67 SPULinuxTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
  68                                              bool Global) const {
  69   // We really need to write something here.
  70   return TargetAsmInfo::PreferredEHDataFormat(Reason, Global);
  71 }
  72
  73 // Instantiate default implementation.
  74 TEMPLATE_INSTANTIATION(class SPUTargetAsmInfo<TargetAsmInfo>);