[llvm-commits] CVS: llvm/include/llvm/CodeGen/ELFRelocation.h

[Christopher Lamb]

Changes in directory llvm/include/llvm/CodeGen:

ELFRelocation.h added (r1.1)
---
Log message:

Header file for ELF relocations.


---
Diffs of the changes:  (+49 -0)

 ELFRelocation.h |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 49 insertions(+)


Index: llvm/include/llvm/CodeGen/ELFRelocation.h
diff -c /dev/null llvm/include/llvm/CodeGen/ELFRelocation.h:1.1
*** /dev/null	Mon Apr 30 15:41:18 2007
--- llvm/include/llvm/CodeGen/ELFRelocation.h	Mon Apr 30 15:41:08 2007
***************
*** 0 ****
--- 1,49 ----
+ //=== ELFRelocation.h - ELF Relocation Info ---------------------*- C++ -*-===//
+ //
+ //                     The LLVM Compiler Infrastructure
+ //
+ // This file was developed by Christopher Lamb and is distributed under the
+ // University of Illinois Open Source License. See LICENSE.TXT for details.
+ //
+ //===----------------------------------------------------------------------===//
+ //
+ // This file defines the ELFRelocation class.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #ifndef LLVM_CODEGEN_ELF_RELOCATION_H
+ #define LLVM_CODEGEN_ELF_RELOCATION_H
+ 
+ namespace llvm {
+ 
+   /// ELFRelocation - This class contains all the information necessary to
+   /// to generate any 32-bit or 64-bit ELF relocation entry.
+   class ELFRelocation {
+     uint64_t r_offset;    // offset in the section of the object this applies to
+     uint32_t r_symidx;    // symbol table index of the symbol to use
+     uint32_t r_type;      // machine specific relocation type
+     int64_t  r_add;       // explicit relocation addend
+     bool     r_rela;      // if true then the addend is part of the entry
+                           // otherwise the addend is at the location specified
+                           // by r_offset
+   public:      
+   
+     uint64_t getInfo(bool is64Bit = false) const {
+       if (is64Bit)
+         return ((uint64_t)r_symidx << 32) + ((uint64_t)r_type & 0xFFFFFFFFL);
+       else
+         return (r_symidx << 8)  + (r_type & 0xFFL);
+     }
+   
+     uint64_t getOffset() const { return r_offset; }
+     uint64_t getAddress() const { return r_add; }
+   
+     ELFRelocation(uint64_t off, uint32_t sym, uint32_t type, 
+                   bool rela = true, int64_t addend = 0) : 
+       r_offset(off), r_symidx(sym), r_type(type),
+       r_add(addend), r_rela(rela) {}
+   };
+ 
+ } // end llvm namespace
+ 
+ #endif // LLVM_CODEGEN_ELF_RELOCATION_H
\ No newline at end of file