Kill off <TARGET>MachineModule variables, and <TARGETASMPRINTER>ForceLink

[oota-llvm.git] / lib / Target / DarwinTargetAsmInfo.cpp

diff --git a/lib/Target/DarwinTargetAsmInfo.cpp b/lib/Target/DarwinTargetAsmInfo.cpp
index 927fdd295361943308f8a90596fad777780d68b8..7ab3967c0d1bf2bd0c006d223ce927ac402a78ee 100644 (file)
--- a/lib/Target/DarwinTargetAsmInfo.cpp
+++ b/lib/Target/DarwinTargetAsmInfo.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Function.h"
 #include "llvm/GlobalVariable.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Mangler.h"
 #include "llvm/Target/DarwinTargetAsmInfo.h"
 #include "llvm/Target/TargetMachine.h"
@@ -50,23 +51,72 @@ DarwinTargetAsmInfo::DarwinTargetAsmInfo(const TargetMachine &TM)
   ConstDataSection = getUnnamedSection(".const_data", SectionFlags::None);
   DataCoalSection = getNamedSection("\t__DATA,__datacoal_nt,coalesced",
                                     SectionFlags::Writeable);
+    
+  
+  // Common settings for all Darwin targets.
+  // Syntax:
+  GlobalPrefix = "_";
+  PrivateGlobalPrefix = "L";
+  LessPrivateGlobalPrefix = "l";  // Marker for some ObjC metadata
+  NeedsSet = true;
+  NeedsIndirectEncoding = true;
+  AllowQuotesInName = true;
+  HasSingleParameterDotFile = false;
+
+  // In non-PIC modes, emit a special label before jump tables so that the
+  // linker can perform more accurate dead code stripping.  We do not check the
+  // relocation model here since it can be overridden later.
+  JumpTableSpecialLabelPrefix = "l";
+    
+  // Directives:
+  WeakDefDirective = "\t.weak_definition ";
+  WeakRefDirective = "\t.weak_reference ";
+  HiddenDirective = "\t.private_extern ";
+    
+  // Sections:
+  CStringSection = "\t.cstring";
+  JumpTableDataSection = "\t.const\n";
+  BSSSection = 0;
+
+  if (TM.getRelocationModel() == Reloc::Static) {
+    StaticCtorsSection = ".constructor";
+    StaticDtorsSection = ".destructor";
+  } else {
+    StaticCtorsSection = ".mod_init_func";
+    StaticDtorsSection = ".mod_term_func";
+  }
+    
+  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";
+  DwarfMacroInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
 }
 
 /// emitUsedDirectiveFor - On Darwin, internally linked data beginning with
 /// the PrivateGlobalPrefix or the LessPrivateGlobalPrefix does not have the
 /// directive emitted (this occurs in ObjC metadata).
-
 bool
 DarwinTargetAsmInfo::emitUsedDirectiveFor(const GlobalValue* GV,
                                           Mangler *Mang) const {
   if (GV==0)
     return false;
+  
+  /// FIXME: WHAT IS THIS?
+  
   if (GV->hasLocalLinkage() && !isa<Function>(GV) &&
       ((strlen(getPrivateGlobalPrefix()) != 0 &&
-        Mang->getValueName(GV).substr(0,strlen(getPrivateGlobalPrefix())) ==
+        Mang->getMangledName(GV).substr(0,strlen(getPrivateGlobalPrefix())) ==
           getPrivateGlobalPrefix()) ||
        (strlen(getLessPrivateGlobalPrefix()) != 0 &&
-        Mang->getValueName(GV).substr(0,strlen(getLessPrivateGlobalPrefix())) ==
+        Mang->getMangledName(GV).substr(0,
+                                        strlen(getLessPrivateGlobalPrefix())) ==
           getLessPrivateGlobalPrefix())))
     return false;
   return true;
@@ -104,7 +154,7 @@ DarwinTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV) const {
             ConstDataCoalSection:
             MergeableConstSection(cast<GlobalVariable>(GV)));
    default:
-    assert(0 && "Unsuported section kind for global");
+    llvm_unreachable("Unsuported section kind for global");
   }
 
   // FIXME: Do we have any extra special weird cases?
@@ -117,7 +167,7 @@ DarwinTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
   Constant *C = cast<GlobalVariable>(GV)->getInitializer();
   const Type *Ty = cast<ArrayType>(C->getType())->getElementType();
 
-  unsigned Size = TD->getTypePaddedSize(Ty);
+  unsigned Size = TD->getTypeAllocSize(Ty);
   if (Size) {
     unsigned Align = TD->getPreferredAlignment(GV);
     if (Align <= 32)
@@ -138,7 +188,7 @@ inline const Section*
 DarwinTargetAsmInfo::MergeableConstSection(const Type *Ty) const {
   const TargetData *TD = TM.getTargetData();
 
-  unsigned Size = TD->getTypePaddedSize(Ty);
+  unsigned Size = TD->getTypeAllocSize(Ty);
   if (Size == 4)
     return FourByteConstantSection;
   else if (Size == 8)
@@ -164,6 +214,6 @@ DarwinTargetAsmInfo::SelectSectionForMachineConst(const Type *Ty) const {
 std::string
 DarwinTargetAsmInfo::UniqueSectionForGlobal(const GlobalValue* GV,
                                                SectionKind::Kind kind) const {
-  assert(0 && "Darwin does not use unique sections");
+  llvm_unreachable("Darwin does not use unique sections");
   return "";
 }