vendor/llvm/llvm-r72732

1 files changed, 55 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCMachOWriterInfo.h b/lib/Target/PowerPC/PPCMachOWriterInfo.h
new file mode 100644
index 0000000000000..d46334df26028
--- /dev/null
+++ b/lib/Target/PowerPC/PPCMachOWriterInfo.h
@@ -0,0 +1,55 @@
+//===-- PPCMachOWriterInfo.h - Mach-O Writer Info for PowerPC ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements Mach-O writer information for the PowerPC backend.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PPC_MACHO_WRITER_INFO_H
+#define PPC_MACHO_WRITER_INFO_H
+
+#include "llvm/Target/TargetMachOWriterInfo.h"
+
+namespace llvm {
+
+  // Forward declarations
+  class MachineRelocation;
+  class OutputBuffer;
+  class PPCTargetMachine;
+
+  class PPCMachOWriterInfo : public TargetMachOWriterInfo {
+  public:
+    PPCMachOWriterInfo(const PPCTargetMachine &TM);
+    virtual ~PPCMachOWriterInfo();
+
+    virtual unsigned GetTargetRelocation(MachineRelocation &MR,
+                                         unsigned FromIdx,
+                                         unsigned ToAddr,
+                                         unsigned ToIdx,
+                                         OutputBuffer &RelocOut,
+                                         OutputBuffer &SecOut,
+                                         bool Scattered, bool Extern) const;
+
+    // Constants for the relocation r_type field.
+    // See <mach-o/ppc/reloc.h>
+    enum {
+      PPC_RELOC_VANILLA, // generic relocation
+      PPC_RELOC_PAIR,    // the second relocation entry of a pair
+      PPC_RELOC_BR14,    // 14 bit branch displacement to word address
+      PPC_RELOC_BR24,    // 24 bit branch displacement to word address
+      PPC_RELOC_HI16,    // a PAIR follows with the low 16 bits
+      PPC_RELOC_LO16,    // a PAIR follows with the high 16 bits
+      PPC_RELOC_HA16,    // a PAIR follows, which is sign extended to 32b
+      PPC_RELOC_LO14     // LO16 with low 2 bits implicitly zero
+    };
+  };
+
+} // end llvm namespace
+
+#endif // PPC_MACHO_WRITER_INFO_H