1 files changed, 161 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCTargetAsmInfo.cpp b/lib/Target/PowerPC/PPCTargetAsmInfo.cpp
new file mode 100644
index 0000000..c69e591
--- /dev/null
+++ b/lib/Target/PowerPC/PPCTargetAsmInfo.cpp
@@ -0,0 +1,161 @@
+//===-- PPCTargetAsmInfo.cpp - PPC asm properties ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the declarations of the DarwinTargetAsmInfo properties.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PPCTargetAsmInfo.h"
+#include "PPCTargetMachine.h"
+#include "llvm/Function.h"
+#include "llvm/Support/Dwarf.h"
+
+using namespace llvm;
+using namespace llvm::dwarf;
+
+PPCDarwinTargetAsmInfo::PPCDarwinTargetAsmInfo(const PPCTargetMachine &TM):
+  PPCTargetAsmInfo<DarwinTargetAsmInfo>(TM) {
+  PCSymbol = ".";
+  CommentString = ";";
+  GlobalPrefix = "_";
+  PrivateGlobalPrefix = "L";
+  LessPrivateGlobalPrefix = "l";
+  StringConstantPrefix = "\1LC";
+  ConstantPoolSection = "\t.const\t";
+  JumpTableDataSection = ".const";
+  CStringSection = "\t.cstring";
+  if (TM.getRelocationModel() == Reloc::Static) {
+    StaticCtorsSection = ".constructor";
+    StaticDtorsSection = ".destructor";
+  } else {
+    StaticCtorsSection = ".mod_init_func";
+    StaticDtorsSection = ".mod_term_func";
+  }
+  HasSingleParameterDotFile = false;
+  SwitchToSectionDirective = "\t.section ";
+  UsedDirective = "\t.no_dead_strip\t";
+  WeakDefDirective = "\t.weak_definition ";
+  WeakRefDirective = "\t.weak_reference ";
+  HiddenDirective = "\t.private_extern ";
+  SupportsExceptionHandling = true;
+  NeedsIndirectEncoding = true;
+  NeedsSet = true;
+  BSSSection = 0;
+  
+  DwarfEHFrameSection =
+  ".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
+  DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
+  GlobalEHDirective = "\t.globl\t";
+  SupportsWeakOmittedEHFrame = false;
+
+  DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
+  DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
+  DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
+  DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
+  DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
+  DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
+  DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
+  DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
+  DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
+  DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
+  DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
+  
+  // In non-PIC modes, emit a special label before jump tables so that the
+  // linker can perform more accurate dead code stripping.
+  if (TM.getRelocationModel() != Reloc::PIC_) {
+    // Emit a local label that is preserved until the linker runs.
+    JumpTableSpecialLabelPrefix = "l";
+  }
+}
+
+/// PreferredEHDataFormat - This hook allows the target to select data
+/// format used for encoding pointers in exception handling data. Reason is
+/// 0 for data, 1 for code labels, 2 for function pointers. Global is true
+/// if the symbol can be relocated.
+unsigned
+PPCDarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
+                                              bool Global) const {
+  if (Reason == DwarfEncoding::Functions && Global)
+    return (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4);
+  else if (Reason == DwarfEncoding::CodeLabels || !Global)
+    return DW_EH_PE_pcrel;
+  else
+    return DW_EH_PE_absptr;
+}
+
+const char *
+PPCDarwinTargetAsmInfo::getEHGlobalPrefix() const
+{
+  const PPCSubtarget* Subtarget = &TM.getSubtarget<PPCSubtarget>();
+  if (Subtarget->getDarwinVers() > 9)
+    return PrivateGlobalPrefix;
+  else
+    return "";
+}
+
+PPCLinuxTargetAsmInfo::PPCLinuxTargetAsmInfo(const PPCTargetMachine &TM) :
+  PPCTargetAsmInfo<ELFTargetAsmInfo>(TM) {
+  CommentString = "#";
+  GlobalPrefix = "";
+  PrivateGlobalPrefix = ".L";
+  ConstantPoolSection = "\t.section .rodata.cst4\t";
+  JumpTableDataSection = ".section .rodata.cst4";
+  CStringSection = ".rodata.str";
+  StaticCtorsSection = ".section\t.ctors,\"aw\",@progbits";
+  StaticDtorsSection = ".section\t.dtors,\"aw\",@progbits";
+  UsedDirective = "\t# .no_dead_strip\t";
+  WeakRefDirective = "\t.weak\t";
+  BSSSection = "\t.section\t\".sbss\",\"aw\",@nobits";
+
+  // PPC/Linux normally uses named section for BSS.
+  BSSSection_  = getNamedSection("\t.bss",
+                                 SectionFlags::Writeable | SectionFlags::BSS,
+                                 /* Override */ true);
+
+  // Debug Information
+  AbsoluteDebugSectionOffsets = true;
+  SupportsDebugInformation = true;
+  DwarfAbbrevSection =  "\t.section\t.debug_abbrev,\"\",@progbits";
+  DwarfInfoSection =    "\t.section\t.debug_info,\"\",@progbits";
+  DwarfLineSection =    "\t.section\t.debug_line,\"\",@progbits";
+  DwarfFrameSection =   "\t.section\t.debug_frame,\"\",@progbits";
+  DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
+  DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
+  DwarfStrSection =     "\t.section\t.debug_str,\"\",@progbits";
+  DwarfLocSection =     "\t.section\t.debug_loc,\"\",@progbits";
+  DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
+  DwarfRangesSection =  "\t.section\t.debug_ranges,\"\",@progbits";
+  DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
+
+  PCSymbol = ".";
+
+  // Set up DWARF directives
+  HasLEB128 = true;  // Target asm supports leb128 directives (little-endian)
+
+  // Exceptions handling
+  if (!TM.getSubtargetImpl()->isPPC64())
+    SupportsExceptionHandling = true;
+  AbsoluteEHSectionOffsets = false;
+  DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
+  DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
+}
+
+/// PreferredEHDataFormat - This hook allows the target to select data
+/// format used for encoding pointers in exception handling data. Reason is
+/// 0 for data, 1 for code labels, 2 for function pointers. Global is true
+/// if the symbol can be relocated.
+unsigned
+PPCLinuxTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
+                                             bool Global) const {
+  // We really need to write something here.
+  return TargetAsmInfo::PreferredEHDataFormat(Reason, Global);
+}
+
+// Instantiate default implementation.
+TEMPLATE_INSTANTIATION(class PPCTargetAsmInfo<TargetAsmInfo>);