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for ELF to work. 2) RIP addressing: Use SIB bytes for absolute relocations where RegBase=0, IndexReg=0. 3) The JIT can get the real address of cstpools and jmptables during code emission, fix that for object code emission llvm-svn: 78129
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
//===- X86Relocations.h - X86 Code Relocations ------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the X86 target-specific relocation types.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86RELOCATIONS_H
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#define X86RELOCATIONS_H
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#include "llvm/CodeGen/MachineRelocation.h"
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namespace llvm {
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namespace X86 {
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/// RelocationType - An enum for the x86 relocation codes. Note that
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/// the terminology here doesn't follow x86 convention - word means
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/// 32-bit and dword means 64-bit. The relocations will be treated
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/// by JIT or ObjectCode emitters, this is transparent to the x86 code
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/// emitter but JIT and ObjectCode will treat them differently
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enum RelocationType {
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/// reloc_pcrel_word - PC relative relocation, add the relocated value to
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/// the value already in memory, after we adjust it for where the PC is.
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reloc_pcrel_word = 0,
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/// reloc_picrel_word - PIC base relative relocation, add the relocated
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/// value to the value already in memory, after we adjust it for where the
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/// PIC base is.
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reloc_picrel_word = 1,
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/// reloc_absolute_word - absolute relocation, just add the relocated
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/// value to the value already in memory.
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reloc_absolute_word = 2,
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/// reloc_absolute_word_sext - absolute relocation, just add the relocated
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/// value to the value already in memory. In object files, it represents a
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/// value which must be sign-extended when resolving the relocation.
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reloc_absolute_word_sext = 3,
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/// reloc_absolute_dword - absolute relocation, just add the relocated
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/// value to the value already in memory.
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reloc_absolute_dword = 4
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};
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}
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}
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#endif
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