mirror of
https://github.com/c64scene-ar/llvm-6502.git
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dfc6383227
Add MachO 32-bit (i.e. arm and x86) support for replacing global GOT equivalent
symbol accesses. Unlike 64-bit targets, there's no GOTPCREL relocation, and
access through a non_lazy_symbol_pointers section is used instead.
-- before
_extgotequiv:
.long _extfoo
_delta:
.long _extgotequiv-_delta
-- after
_delta:
.long L_extfoo$non_lazy_ptr-_delta
.section __IMPORT,__pointers,non_lazy_symbol_pointers
L_extfoo$non_lazy_ptr:
.indirect_symbol _extfoo
.long 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231475 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
//===-- AArch64TargetObjectFile.h - AArch64 Object Info -*- 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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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETOBJECTFILE_H
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#define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETOBJECTFILE_H
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#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
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#include "llvm/Target/TargetLoweringObjectFile.h"
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namespace llvm {
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class AArch64TargetMachine;
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/// This implementation is used for AArch64 ELF targets (Linux in particular).
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class AArch64_ELFTargetObjectFile : public TargetLoweringObjectFileELF {
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void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
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};
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/// AArch64_MachoTargetObjectFile - This TLOF implementation is used for Darwin.
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class AArch64_MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
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public:
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AArch64_MachoTargetObjectFile();
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const MCExpr *getTTypeGlobalReference(const GlobalValue *GV,
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unsigned Encoding, Mangler &Mang,
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const TargetMachine &TM,
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MachineModuleInfo *MMI,
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MCStreamer &Streamer) const override;
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MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
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const TargetMachine &TM,
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MachineModuleInfo *MMI) const override;
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const MCExpr *getIndirectSymViaGOTPCRel(const MCSymbol *Sym,
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const MCValue &MV, int64_t Offset,
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MachineModuleInfo *MMI,
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MCStreamer &Streamer) const override;
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};
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} // end namespace llvm
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#endif
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