mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-11 08:07:22 +00:00
f51e95a9f2
it. It does need some some tests... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147154 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
//===-- PPCELFObjectWriter.cpp - PPC ELF Writer ---------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "MCTargetDesc/PPCFixupKinds.h"
|
|
#include "MCTargetDesc/PPCMCTargetDesc.h"
|
|
#include "llvm/MC/MCELFObjectWriter.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
class PPCELFObjectWriter : public MCELFObjectTargetWriter {
|
|
public:
|
|
PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI);
|
|
|
|
virtual ~PPCELFObjectWriter();
|
|
protected:
|
|
virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
|
|
bool IsPCRel, bool IsRelocWithSymbol,
|
|
int64_t Addend) const;
|
|
virtual void adjustFixupOffset(const MCFixup &Fixup, uint64_t &RelocOffset);
|
|
};
|
|
}
|
|
|
|
PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
|
|
: MCELFObjectTargetWriter(Is64Bit, OSABI,
|
|
Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
|
|
/*HasRelocationAddend*/ true) {}
|
|
|
|
PPCELFObjectWriter::~PPCELFObjectWriter() {
|
|
}
|
|
|
|
unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
|
|
const MCFixup &Fixup,
|
|
bool IsPCRel,
|
|
bool IsRelocWithSymbol,
|
|
int64_t Addend) const {
|
|
// determine the type of the relocation
|
|
unsigned Type;
|
|
if (IsPCRel) {
|
|
switch ((unsigned)Fixup.getKind()) {
|
|
default:
|
|
llvm_unreachable("Unimplemented");
|
|
case PPC::fixup_ppc_br24:
|
|
Type = ELF::R_PPC_REL24;
|
|
break;
|
|
case FK_PCRel_4:
|
|
Type = ELF::R_PPC_REL32;
|
|
break;
|
|
}
|
|
} else {
|
|
switch ((unsigned)Fixup.getKind()) {
|
|
default: llvm_unreachable("invalid fixup kind!");
|
|
case PPC::fixup_ppc_br24:
|
|
Type = ELF::R_PPC_ADDR24;
|
|
break;
|
|
case PPC::fixup_ppc_brcond14:
|
|
Type = ELF::R_PPC_ADDR14_BRTAKEN; // XXX: or BRNTAKEN?_
|
|
break;
|
|
case PPC::fixup_ppc_ha16:
|
|
Type = ELF::R_PPC_ADDR16_HA;
|
|
break;
|
|
case PPC::fixup_ppc_lo16:
|
|
Type = ELF::R_PPC_ADDR16_LO;
|
|
break;
|
|
case PPC::fixup_ppc_lo14:
|
|
Type = ELF::R_PPC_ADDR14;
|
|
break;
|
|
case FK_Data_4:
|
|
Type = ELF::R_PPC_ADDR32;
|
|
break;
|
|
case FK_Data_2:
|
|
Type = ELF::R_PPC_ADDR16;
|
|
break;
|
|
}
|
|
}
|
|
return Type;
|
|
}
|
|
|
|
void PPCELFObjectWriter::
|
|
adjustFixupOffset(const MCFixup &Fixup, uint64_t &RelocOffset) {
|
|
switch ((unsigned)Fixup.getKind()) {
|
|
case PPC::fixup_ppc_ha16:
|
|
case PPC::fixup_ppc_lo16:
|
|
RelocOffset += 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
MCObjectWriter *llvm::createPPCELFObjectWriter(raw_ostream &OS,
|
|
bool Is64Bit,
|
|
uint8_t OSABI) {
|
|
MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
|
|
return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/false);
|
|
}
|