Update LLVM to r104832.

1 files changed, 115 insertions, 0 deletions

diff --git a/include/llvm/MC/MCSectionCOFF.h b/include/llvm/MC/MCSectionCOFF.h
new file mode 100644
index 0000000..938a388
--- /dev/null
+++ b/include/llvm/MC/MCSectionCOFF.h
@@ -0,0 +1,115 @@
+//===- MCSectionCOFF.h - COFF Machine Code Sections -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the MCSectionCOFF class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCSECTIONCOFF_H
+#define LLVM_MC_MCSECTIONCOFF_H
+
+#include "llvm/MC/MCSection.h"
+
+namespace llvm {
+  
+/// MCSectionCOFF - This represents a section on Windows
+  class MCSectionCOFF : public MCSection {
+    // The memory for this string is stored in the same MCContext as *this.
+    StringRef SectionName;
+    
+    /// Characteristics - This is the Characteristics field of a section,
+    //  drawn from the enums below.
+    unsigned Characteristics;
+
+    /// Selection - This is the Selection field for the section symbol, if
+    /// it is a COMDAT section (Characteristics & IMAGE_SCN_LNK_COMDAT) != 0
+    int Selection;
+
+  private:
+    friend class MCContext;
+    MCSectionCOFF(StringRef Section, unsigned Characteristics,
+                  int Selection, SectionKind K)
+      : MCSection(SV_COFF, K), SectionName(Section),
+        Characteristics(Characteristics), Selection (Selection) {
+      assert ((Characteristics & 0x00F00000) == 0 &&
+        "alignment must not be set upon section creation");
+    }
+    ~MCSectionCOFF();
+
+  public:
+    /// ShouldOmitSectionDirective - Decides whether a '.section' directive
+    /// should be printed before the section name
+    bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
+
+    //FIXME: all COFF enumerations/flags should be standardized into one place...
+    // Target/X86COFF.h doesn't seem right as COFF can be used for other targets,
+    // MC/WinCOFF.h maybe right as it isn't target or entity specific, and it is
+    //   pretty low on the dependancy graph (is there any need to support non
+    //   windows COFF?)
+    // here is good for section stuff, but others should go elsewhere
+
+    /// Valid section flags.
+    enum {
+      IMAGE_SCN_TYPE_NO_PAD                     = 0x00000008,
+      IMAGE_SCN_CNT_CODE                        = 0x00000020,
+      IMAGE_SCN_CNT_INITIALIZED_DATA            = 0x00000040,
+      IMAGE_SCN_CNT_UNINITIALIZED_DATA          = 0x00000080,
+      IMAGE_SCN_LNK_OTHER                       = 0x00000100,
+      IMAGE_SCN_LNK_INFO                        = 0x00000200,
+      IMAGE_SCN_LNK_REMOVE                      = 0x00000800,
+      IMAGE_SCN_LNK_COMDAT                      = 0x00001000,
+      IMAGE_SCN_MEM_FARDATA                     = 0x00008000,
+      IMAGE_SCN_MEM_PURGEABLE                   = 0x00020000,
+      IMAGE_SCN_MEM_16BIT                       = 0x00020000,
+      IMAGE_SCN_MEM_LOCKED                      = 0x00040000,
+      IMAGE_SCN_MEM_PRELOAD                     = 0x00080000,
+      /* these are handled elsewhere
+      IMAGE_SCN_ALIGN_1BYTES                    = 0x00100000,
+      IMAGE_SCN_ALIGN_2BYTES                    = 0x00200000,
+      IMAGE_SCN_ALIGN_4BYTES                    = 0x00300000,
+      IMAGE_SCN_ALIGN_8BYTES                    = 0x00400000,
+      IMAGE_SCN_ALIGN_16BYTES                   = 0x00500000,
+      IMAGE_SCN_ALIGN_32BYTES                   = 0x00600000,
+      IMAGE_SCN_ALIGN_64BYTES                   = 0x00700000,
+      */
+      IMAGE_SCN_LNK_NRELOC_OVFL                 = 0x01000000,
+      IMAGE_SCN_MEM_DISCARDABLE                 = 0x02000000,
+      IMAGE_SCN_MEM_NOT_CACHED                  = 0x04000000,
+      IMAGE_SCN_MEM_NOT_PAGED                   = 0x08000000,
+      IMAGE_SCN_MEM_SHARED                      = 0x10000000,
+      IMAGE_SCN_MEM_EXECUTE                     = 0x20000000,
+      IMAGE_SCN_MEM_READ                        = 0x40000000,
+      IMAGE_SCN_MEM_WRITE                       = 0x80000000
+    };
+
+    enum {
+      IMAGE_COMDAT_SELECT_NODUPLICATES = 1,
+      IMAGE_COMDAT_SELECT_ANY,
+      IMAGE_COMDAT_SELECT_SAME_SIZE,
+      IMAGE_COMDAT_SELECT_EXACT_MATCH,
+      IMAGE_COMDAT_SELECT_ASSOCIATIVE,
+      IMAGE_COMDAT_SELECT_LARGEST
+    };
+
+    StringRef getSectionName() const { return SectionName; }
+    unsigned getCharacteristics() const { return Characteristics; }
+    int getSelection () const { return Selection; }
+    
+    virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
+                                      raw_ostream &OS) const;
+
+    static bool classof(const MCSection *S) {
+      return S->getVariant() == SV_COFF;
+    }
+    static bool classof(const MCSectionCOFF *) { return true; }
+  };
+
+} // end namespace llvm
+
+#endif