//
//===----------------------------------------------------------------------===//
-#include "MCTargetDesc/PPCFixupKinds.h"
#include "MCTargetDesc/PPCMCTargetDesc.h"
+#include "MCTargetDesc/PPCFixupKinds.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCELFObjectWriter.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCValue.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
virtual ~PPCELFObjectWriter();
protected:
+ virtual unsigned getRelocTypeInner(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel) const;
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);
+ virtual const MCSymbol *undefinedExplicitRelSym(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel) const;
};
}
PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
: MCELFObjectTargetWriter(Is64Bit, OSABI,
Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
- /*HasRelocationAddend*/ false) {}
+ /*HasRelocationAddend*/ true) {}
PPCELFObjectWriter::~PPCELFObjectWriter() {
}
-unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
- const MCFixup &Fixup,
- bool IsPCRel,
- bool IsRelocWithSymbol,
- int64_t Addend) const {
+unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel) const
+{
+ MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
+ MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
+
// determine the type of the relocation
unsigned Type;
if (IsPCRel) {
case PPC::fixup_ppc_br24:
Type = ELF::R_PPC_REL24;
break;
+ case PPC::fixup_ppc_brcond14:
+ Type = ELF::R_PPC_REL14;
+ break;
+ case FK_Data_4:
case FK_PCRel_4:
Type = ELF::R_PPC_REL32;
break;
+ case FK_Data_8:
+ case FK_PCRel_8:
+ Type = ELF::R_PPC64_REL64;
+ break;
}
} else {
switch ((unsigned)Fixup.getKind()) {
Type = ELF::R_PPC_ADDR24;
break;
case PPC::fixup_ppc_brcond14:
- Type = ELF::R_PPC_ADDR14_BRTAKEN; // XXX: or BRNTAKEN?_
+ Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
+ break;
+ case PPC::fixup_ppc_half16:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier");
+ case MCSymbolRefExpr::VK_None:
+ Type = ELF::R_PPC_ADDR16;
+ break;
+ case MCSymbolRefExpr::VK_PPC_LO:
+ Type = ELF::R_PPC_ADDR16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_HI:
+ Type = ELF::R_PPC_ADDR16_HI;
+ break;
+ case MCSymbolRefExpr::VK_PPC_HA:
+ Type = ELF::R_PPC_ADDR16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC:
+ Type = ELF::R_PPC64_TOC16;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC_LO:
+ Type = ELF::R_PPC64_TOC16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC_HI:
+ Type = ELF::R_PPC64_TOC16_HI;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC_HA:
+ Type = ELF::R_PPC64_TOC16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TPREL_LO:
+ Type = ELF::R_PPC_TPREL16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TPREL_HA:
+ Type = ELF::R_PPC_TPREL16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
+ Type = ELF::R_PPC64_DTPREL16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
+ Type = ELF::R_PPC64_DTPREL16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
+ Type = ELF::R_PPC64_GOT_TLSGD16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
+ Type = ELF::R_PPC64_GOT_TLSGD16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
+ Type = ELF::R_PPC64_GOT_TLSLD16_LO;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
+ Type = ELF::R_PPC64_GOT_TLSLD16_HA;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
+ Type = ELF::R_PPC64_GOT_TPREL16_HA;
+ break;
+ }
+ break;
+ case PPC::fixup_ppc_half16ds:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier");
+ case MCSymbolRefExpr::VK_None:
+ Type = ELF::R_PPC64_ADDR16_DS;
+ break;
+ case MCSymbolRefExpr::VK_PPC_LO:
+ Type = ELF::R_PPC64_ADDR16_LO_DS;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC:
+ Type = ELF::R_PPC64_TOC16_DS;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TOC_LO:
+ Type = ELF::R_PPC64_TOC16_LO_DS;
+ break;
+ case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
+ Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
+ break;
+ }
break;
- case PPC::fixup_ppc_ha16:
- Type = ELF::R_PPC_ADDR16_HA;
+ case PPC::fixup_ppc_tlsreg:
+ Type = ELF::R_PPC64_TLS;
break;
- case PPC::fixup_ppc_lo16:
- Type = ELF::R_PPC_ADDR16_LO;
+ case PPC::fixup_ppc_nofixup:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier");
+ case MCSymbolRefExpr::VK_PPC_TLSGD:
+ Type = ELF::R_PPC64_TLSGD;
+ break;
+ case MCSymbolRefExpr::VK_PPC_TLSLD:
+ Type = ELF::R_PPC64_TLSLD;
+ break;
+ }
break;
- case PPC::fixup_ppc_lo14:
- Type = ELF::R_PPC_ADDR14;
+ case FK_Data_8:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier");
+ case MCSymbolRefExpr::VK_PPC_TOCBASE:
+ Type = ELF::R_PPC64_TOC;
+ break;
+ case MCSymbolRefExpr::VK_None:
+ Type = ELF::R_PPC64_ADDR64;
+ break;
+ }
break;
case FK_Data_4:
Type = ELF::R_PPC_ADDR32;
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;
- }
+unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel,
+ bool IsRelocWithSymbol,
+ int64_t Addend) const {
+ return getRelocTypeInner(Target, Fixup, IsPCRel);
+}
+
+const MCSymbol *PPCELFObjectWriter::undefinedExplicitRelSym(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel) const {
+ assert(Target.getSymA() && "SymA cannot be 0");
+ const MCSymbol &Symbol = Target.getSymA()->getSymbol().AliasedSymbol();
+
+ unsigned RelocType = getRelocTypeInner(Target, Fixup, IsPCRel);
+
+ // The .odp creation emits a relocation against the symbol ".TOC." which
+ // create a R_PPC64_TOC relocation. However the relocation symbol name
+ // in final object creation should be NULL, since the symbol does not
+ // really exist, it is just the reference to TOC base for the current
+ // object file.
+ bool EmitThisSym = RelocType != ELF::R_PPC64_TOC;
+
+ if (EmitThisSym && !Symbol.isTemporary())
+ return &Symbol;
+ return NULL;
}
MCObjectWriter *llvm::createPPCELFObjectWriter(raw_ostream &OS,
bool Is64Bit,
uint8_t OSABI) {
MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
- return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/true);
+ return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/false);
}
projects / oota-llvm.git / blobdiff