X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCSectionMachO.h;h=65ad7961b35fb01a38eda5c648dcc71a2ac5b844;hb=b09c146b116359616f6cbd4c8b3328607e00ff42;hp=9279e2933fde1b1c0bc85658d40d89105b072029;hpb=af76e592c7f9deff0e55c13dbb4a34f07f1c7f64;p=oota-llvm.git

diff --git a/include/llvm/MC/MCSectionMachO.h b/include/llvm/MC/MCSectionMachO.h
index 9279e2933fd..65ad7961b35 100644
--- a/include/llvm/MC/MCSectionMachO.h
+++ b/include/llvm/MC/MCSectionMachO.h
@@ -14,59 +14,40 @@
 #ifndef LLVM_MC_MCSECTIONMACHO_H
 #define LLVM_MC_MCSECTIONMACHO_H
 
+#include "llvm/ADT/StringRef.h"
 #include "llvm/MC/MCSection.h"
 
 namespace llvm {
-  
+
 /// MCSectionMachO - This represents a section on a Mach-O system (used by
 /// Mac OS X).  On a Mac system, these are also described in
 /// /usr/include/mach-o/loader.h.
 class MCSectionMachO : public MCSection {
   char SegmentName[16];  // Not necessarily null terminated!
   char SectionName[16];  // Not necessarily null terminated!
-  
+
   /// TypeAndAttributes - This is the SECTION_TYPE and SECTION_ATTRIBUTES
   /// field of a section, drawn from the enums below.
   unsigned TypeAndAttributes;
-  
+
   /// Reserved2 - The 'reserved2' field of a section, used to represent the
   /// size of stubs, for example.
   unsigned Reserved2;
-  
-  MCSectionMachO(const StringRef &Segment, const StringRef &Section,
-                 unsigned TAA, unsigned reserved2, SectionKind K)
-    : MCSection(K), TypeAndAttributes(TAA), Reserved2(reserved2) {
-    assert(Segment.size() <= 16 && Section.size() <= 16 &&
-           "Segment or section string too long");
-    for (unsigned i = 0; i != 16; ++i) {
-      if (i < Segment.size())
-        SegmentName[i] = Segment[i];
-      else
-        SegmentName[i] = 0;
-      
-      if (i < Section.size())
-        SectionName[i] = Section[i];
-      else
-        SectionName[i] = 0;
-    }        
-  }
+
+  MCSectionMachO(StringRef Segment, StringRef Section,
+                 unsigned TAA, unsigned reserved2, SectionKind K);
+  friend class MCContext;
 public:
-  
-  static MCSectionMachO *Create(const StringRef &Segment,
-                                const StringRef &Section,
-                                unsigned TypeAndAttributes,
-                                unsigned Reserved2,
-                                SectionKind K, MCContext &Ctx);
-  
+
   /// These are the section type and attributes fields.  A MachO section can
   /// have only one Type, but can have any of the attributes specified.
   enum {
     // TypeAndAttributes bitmasks.
     SECTION_TYPE       = 0x000000FFU,
     SECTION_ATTRIBUTES = 0xFFFFFF00U,
-    
+
     // Valid section types.
-    
+
     /// S_REGULAR - Regular section.
     S_REGULAR                    = 0x00U,
     /// S_ZEROFILL - Zero fill on demand section.
@@ -86,10 +67,10 @@ public:
     /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in
     /// the Reserved2 field.
     S_SYMBOL_STUBS               = 0x08U,
-    /// S_SYMBOL_STUBS - Section with only function pointers for
+    /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
     /// initialization.
     S_MOD_INIT_FUNC_POINTERS     = 0x09U,
-    /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
+    /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for
     /// termination.
     S_MOD_TERM_FUNC_POINTERS     = 0x0AU,
     /// S_COALESCED - Section contains symbols that are to be coalesced.
@@ -107,12 +88,24 @@ public:
     /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to
     /// lazy loaded dylibs.
     S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10U,
+    /// S_THREAD_LOCAL_REGULAR - Section with ....
+    S_THREAD_LOCAL_REGULAR = 0x11U,
+    /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section.
+    S_THREAD_LOCAL_ZEROFILL = 0x12U,
+    /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable structure
+    /// data.
+    S_THREAD_LOCAL_VARIABLES = 0x13U,
+    /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with ....
+    S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14U,
+    /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local
+    /// variable initialization pointers to functions.
+    S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15U,
+
+    LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
 
-    LAST_KNOWN_SECTION_TYPE = S_LAZY_DYLIB_SYMBOL_POINTERS,
-    
 
     // Valid section attributes.
-    
+
     /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine
     /// instructions.
     S_ATTR_PURE_INSTRUCTIONS   = 1U << 31,
@@ -151,23 +144,36 @@ public:
       return StringRef(SectionName, 16);
     return StringRef(SectionName);
   }
-  
+
   unsigned getTypeAndAttributes() const { return TypeAndAttributes; }
   unsigned getStubSize() const { return Reserved2; }
-  
+
+  unsigned getType() const { return TypeAndAttributes & SECTION_TYPE; }
+  bool hasAttribute(unsigned Value) const {
+    return (TypeAndAttributes & Value) != 0;
+  }
+
   /// ParseSectionSpecifier - Parse the section specifier indicated by "Spec".
   /// This is a string that can appear after a .section directive in a mach-o
   /// flavored .s file.  If successful, this fills in the specified Out
   /// parameters and returns an empty string.  When an invalid section
   /// specifier is present, this returns a string indicating the problem.
+  /// If no TAA was parsed, TAA is not altered, and TAAWasSet becomes false.
   static std::string ParseSectionSpecifier(StringRef Spec,       // In.
                                            StringRef &Segment,   // Out.
                                            StringRef &Section,   // Out.
                                            unsigned  &TAA,       // Out.
+                                           bool      &TAAParsed, // Out.
                                            unsigned  &StubSize); // Out.
-  
-  virtual void PrintSwitchToSection(const MCAsmInfo &TAI,
+
+  virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
                                     raw_ostream &OS) const;
+  virtual bool UseCodeAlign() const;
+  virtual bool isVirtualSection() const;
+
+  static bool classof(const MCSection *S) {
+    return S->getVariant() == SV_MachO;
+  }
 };
 
 } // end namespace llvm