const SectionIndexMapTy &SectionIndexMap);
virtual void RecordRelocation(const MCAssembler &Asm, const MCAsmLayout &Layout,
- const MCFragment *Fragment, const MCFixup &Fixup,
- MCValue Target, uint64_t &FixedValue) {
- assert(0 && "RecordRelocation is not specific enough");
- }
+ const MCFragment *Fragment, const MCFixup &Fixup,
+ MCValue Target, uint64_t &FixedValue);
virtual uint64_t getSymbolIndexInSymbolTable(const MCAssembler &Asm,
const MCSymbol *S);
virtual void CreateGroupSections(MCAssembler &Asm, MCAsmLayout &Layout,
GroupMapTy &GroupMap, RevGroupMapTy &RevGroupMap);
- virtual void ExecutePostLayoutBinding(MCAssembler &Asm);
+ virtual void ExecutePostLayoutBinding(MCAssembler &Asm,
+ const MCAsmLayout &Layout);
virtual void WriteSecHdrEntry(uint32_t Name, uint32_t Type, uint64_t Flags,
uint64_t Address, uint64_t Offset,
uint32_t GroupSymbolIndex,
uint64_t Offset, uint64_t Size, uint64_t Alignment,
const MCSectionELF &Section);
+
+ protected:
+ virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+ bool IsPCRel, bool IsRelocWithSymbol,
+ int64_t Addend) = 0;
+
+ virtual bool isFixupKindPCRel(unsigned Kind) const = 0;
};
//===- X86ELFObjectWriter -------------------------------------------===//
Triple::OSType _OSType);
virtual ~X86ELFObjectWriter();
- virtual void RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup, MCValue Target,
- uint64_t &FixedValue);
-
- private:
- static bool isFixupKindPCRel(unsigned Kind) {
+ protected:
+ virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+ bool IsPCRel, bool IsRelocWithSymbol,
+ int64_t Addend);
+
+ virtual bool isFixupKindPCRel(unsigned Kind) const {
switch (Kind) {
default:
return false;
Triple::OSType _OSType);
virtual ~ARMELFObjectWriter();
- virtual void RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup, MCValue Target,
- uint64_t &FixedValue);
-
protected:
- // Fixme: pull up to ELFObjectWriter
- unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
- bool IsPCRel);
- private:
- static bool isFixupKindPCRel(unsigned Kind) {
+ virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+ bool IsPCRel, bool IsRelocWithSymbol,
+ int64_t Addend);
+ virtual bool isFixupKindPCRel(unsigned Kind) const {
switch (Kind) {
default:
return false;
Triple::OSType _OSType);
virtual ~MBlazeELFObjectWriter();
- virtual void RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup, MCValue Target,
- uint64_t &FixedValue);
-
- private:
- static bool isFixupKindPCRel(unsigned Kind) {
+ protected:
+ virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+ bool IsPCRel, bool IsRelocWithSymbol,
+ int64_t Addend);
+
+ virtual bool isFixupKindPCRel(unsigned Kind) const {
switch (Kind) {
default:
return false;
return 0;
}
-void ELFObjectWriter::ExecutePostLayoutBinding(MCAssembler &Asm) {
+void ELFObjectWriter::ExecutePostLayoutBinding(MCAssembler &Asm,
+ const MCAsmLayout &Layout) {
// The presence of symbol versions causes undefined symbols and
// versions declared with @@@ to be renamed.
}
+void ELFObjectWriter::RecordRelocation(const MCAssembler &Asm,
+ const MCAsmLayout &Layout,
+ const MCFragment *Fragment,
+ const MCFixup &Fixup,
+ MCValue Target,
+ uint64_t &FixedValue) {
+ int64_t Addend = 0;
+ int Index = 0;
+ int64_t Value = Target.getConstant();
+ const MCSymbol *RelocSymbol = NULL;
+
+ bool IsPCRel = isFixupKindPCRel(Fixup.getKind());
+ if (!Target.isAbsolute()) {
+ const MCSymbol &Symbol = Target.getSymA()->getSymbol();
+ const MCSymbol &ASymbol = Symbol.AliasedSymbol();
+ RelocSymbol = SymbolToReloc(Asm, Target, *Fragment);
+
+ if (const MCSymbolRefExpr *RefB = Target.getSymB()) {
+ const MCSymbol &SymbolB = RefB->getSymbol();
+ MCSymbolData &SDB = Asm.getSymbolData(SymbolB);
+ IsPCRel = true;
+
+ // Offset of the symbol in the section
+ int64_t a = Layout.getSymbolOffset(&SDB);
+
+ // Ofeset of the relocation in the section
+ int64_t b = Layout.getFragmentOffset(Fragment) + Fixup.getOffset();
+ Value += b - a;
+ }
+
+ if (!RelocSymbol) {
+ MCSymbolData &SD = Asm.getSymbolData(ASymbol);
+ MCFragment *F = SD.getFragment();
+
+ Index = F->getParent()->getOrdinal() + 1;
+
+ // Offset of the symbol in the section
+ Value += Layout.getSymbolOffset(&SD);
+ } else {
+ if (Asm.getSymbolData(Symbol).getFlags() & ELF_Other_Weakref)
+ WeakrefUsedInReloc.insert(RelocSymbol);
+ else
+ UsedInReloc.insert(RelocSymbol);
+ Index = -1;
+ }
+ Addend = Value;
+ // Compensate for the addend on i386.
+ if (Is64Bit)
+ Value = 0;
+ }
+
+ FixedValue = Value;
+ unsigned Type = GetRelocType(Target, Fixup, IsPCRel,
+ (RelocSymbol != 0), Addend);
+
+ uint64_t RelocOffset = Layout.getFragmentOffset(Fragment) +
+ Fixup.getOffset();
+
+ if (!HasRelocationAddend) Addend = 0;
+ ELFRelocationEntry ERE(RelocOffset, Index, Type, RelocSymbol, Addend);
+ Relocations[Fragment->getParent()].push_back(ERE);
+}
+
+
uint64_t
ELFObjectWriter::getSymbolIndexInSymbolTable(const MCAssembler &Asm,
const MCSymbol *S) {
return Layout.getSectionFileSize(&SD);
}
-static uint64_t GetSectionSize(const MCAsmLayout &Layout,
- const MCSectionData &SD) {
+static uint64_t GetSectionAddressSize(const MCAsmLayout &Layout,
+ const MCSectionData &SD) {
if (IsELFMetaDataSection(SD))
return DataSectionSize(SD);
- return Layout.getSectionSize(&SD);
+ return Layout.getSectionAddressSize(&SD);
}
static void WriteDataSectionData(ELFObjectWriter *W, const MCSectionData &SD) {
else
GroupSymbolIndex = getSymbolIndexInSymbolTable(Asm, GroupMap[&Section]);
- uint64_t Size = GetSectionSize(Layout, SD);
+ uint64_t Size = GetSectionAddressSize(Layout, SD);
WriteSection(Asm, SectionIndexMap, GroupSymbolIndex,
SectionOffsetMap[&Section], Size,
unsigned ARMELFObjectWriter::GetRelocType(const MCValue &Target,
const MCFixup &Fixup,
- bool IsPCRel) {
+ bool IsPCRel,
+ bool IsRelocWithSymbol,
+ int64_t Addend) {
MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
+ unsigned Type = 0;
if (IsPCRel) {
- switch (Modifier) {
- default: assert(0 && "Unimplemented Modifier");
- case MCSymbolRefExpr::VK_None: break;
- }
switch ((unsigned)Fixup.getKind()) {
default: assert(0 && "Unimplemented");
- case ARM::fixup_arm_branch: return ELF::R_ARM_CALL; break;
+ case FK_Data_4:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier");
+ case MCSymbolRefExpr::VK_None:
+ Type = ELF::R_ARM_BASE_PREL; break;
+ case MCSymbolRefExpr::VK_ARM_TLSGD:
+ assert(0 && "unimplemented"); break;
+ case MCSymbolRefExpr::VK_ARM_GOTTPOFF:
+ Type = ELF::R_ARM_TLS_IE32;
+ } break;
+ case ARM::fixup_arm_branch:
+ switch (Modifier) {
+ case MCSymbolRefExpr::VK_ARM_PLT:
+ Type = ELF::R_ARM_PLT32; break;
+ default:
+ Type = ELF::R_ARM_CALL; break;
+ } break;
}
} else {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
+ case FK_Data_4:
+ switch (Modifier) {
+ default: llvm_unreachable("Unsupported Modifier"); break;
+ case MCSymbolRefExpr::VK_ARM_GOT:
+ Type = ELF::R_ARM_GOT_BREL; break;
+ case MCSymbolRefExpr::VK_ARM_TLSGD:
+ Type = ELF::R_ARM_TLS_GD32; break;
+ case MCSymbolRefExpr::VK_ARM_TPOFF:
+ Type = ELF::R_ARM_TLS_LE32; break;
+ case MCSymbolRefExpr::VK_ARM_GOTTPOFF:
+ Type = ELF::R_ARM_TLS_IE32; break;
+ case MCSymbolRefExpr::VK_None:
+ Type = ELF::R_ARM_ABS32; break;
+ case MCSymbolRefExpr::VK_ARM_GOTOFF:
+ Type = ELF::R_ARM_GOTOFF32; break;
+ } break;
case ARM::fixup_arm_ldst_pcrel_12:
case ARM::fixup_arm_pcrel_10:
case ARM::fixup_arm_adr_pcrel_12:
+ case ARM::fixup_arm_thumb_bl:
+ case ARM::fixup_arm_thumb_cb:
+ case ARM::fixup_arm_thumb_cp:
+ case ARM::fixup_arm_thumb_br:
assert(0 && "Unimplemented"); break;
case ARM::fixup_arm_branch:
- return ELF::R_ARM_CALL; break;
+ // FIXME: Differentiate between R_ARM_CALL and
+ // R_ARM_JUMP24 (latter used for conditional jumps)
+ Type = ELF::R_ARM_CALL; break;
case ARM::fixup_arm_movt_hi16:
- return ELF::R_ARM_MOVT_ABS; break;
+ Type = ELF::R_ARM_MOVT_ABS; break;
case ARM::fixup_arm_movw_lo16:
- return ELF::R_ARM_MOVW_ABS_NC; break;
+ Type = ELF::R_ARM_MOVW_ABS_NC; break;
}
}
if (RelocNeedsGOT(Modifier))
NeedsGOT = true;
- return -1;
-}
-
-void ARMELFObjectWriter::RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup,
- MCValue Target,
- uint64_t &FixedValue) {
- int64_t Addend = 0;
- int Index = 0;
- int64_t Value = Target.getConstant();
- const MCSymbol *RelocSymbol = NULL;
-
- bool IsPCRel = isFixupKindPCRel(Fixup.getKind());
- if (!Target.isAbsolute()) {
- const MCSymbol &Symbol = Target.getSymA()->getSymbol();
- const MCSymbol &ASymbol = Symbol.AliasedSymbol();
- RelocSymbol = SymbolToReloc(Asm, Target, *Fragment);
-
- if (const MCSymbolRefExpr *RefB = Target.getSymB()) {
- const MCSymbol &SymbolB = RefB->getSymbol();
- MCSymbolData &SDB = Asm.getSymbolData(SymbolB);
- IsPCRel = true;
-
- // Offset of the symbol in the section
- int64_t a = Layout.getSymbolOffset(&SDB);
-
- // Ofeset of the relocation in the section
- int64_t b = Layout.getFragmentOffset(Fragment) + Fixup.getOffset();
- Value += b - a;
- }
-
- if (!RelocSymbol) {
- MCSymbolData &SD = Asm.getSymbolData(ASymbol);
- MCFragment *F = SD.getFragment();
-
- Index = F->getParent()->getOrdinal() + 1;
-
- // Offset of the symbol in the section
- Value += Layout.getSymbolOffset(&SD);
- } else {
- if (Asm.getSymbolData(Symbol).getFlags() & ELF_Other_Weakref)
- WeakrefUsedInReloc.insert(RelocSymbol);
- else
- UsedInReloc.insert(RelocSymbol);
- Index = -1;
- }
- Addend = Value;
- // Compensate for the addend on i386.
- if (Is64Bit)
- Value = 0;
- }
-
- FixedValue = Value;
-
- // determine the type of the relocation
- unsigned Type = GetRelocType(Target, Fixup, IsPCRel);
-
- uint64_t RelocOffset = Layout.getFragmentOffset(Fragment) +
- Fixup.getOffset();
-
- if (!HasRelocationAddend) Addend = 0;
- ELFRelocationEntry ERE(RelocOffset, Index, Type, RelocSymbol, Addend);
- Relocations[Fragment->getParent()].push_back(ERE);
+
+ return Type;
}
//===- MBlazeELFObjectWriter -------------------------------------------===//
MBlazeELFObjectWriter::~MBlazeELFObjectWriter() {
}
-void MBlazeELFObjectWriter::RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
+unsigned MBlazeELFObjectWriter::GetRelocType(const MCValue &Target,
const MCFixup &Fixup,
- MCValue Target,
- uint64_t &FixedValue) {
- int64_t Addend = 0;
- int Index = 0;
- int64_t Value = Target.getConstant();
- const MCSymbol &Symbol = Target.getSymA()->getSymbol();
- const MCSymbol &ASymbol = Symbol.AliasedSymbol();
- const MCSymbol *RelocSymbol = SymbolToReloc(Asm, Target, *Fragment);
-
- bool IsPCRel = isFixupKindPCRel(Fixup.getKind());
- if (!Target.isAbsolute()) {
- if (const MCSymbolRefExpr *RefB = Target.getSymB()) {
- const MCSymbol &SymbolB = RefB->getSymbol();
- MCSymbolData &SDB = Asm.getSymbolData(SymbolB);
- IsPCRel = true;
-
- // Offset of the symbol in the section
- int64_t a = Layout.getSymbolOffset(&SDB);
-
- // Ofeset of the relocation in the section
- int64_t b = Layout.getFragmentOffset(Fragment) + Fixup.getOffset();
- Value += b - a;
- }
-
- if (!RelocSymbol) {
- MCSymbolData &SD = Asm.getSymbolData(ASymbol);
- MCFragment *F = SD.getFragment();
-
- Index = F->getParent()->getOrdinal();
-
- // Offset of the symbol in the section
- Value += Layout.getSymbolOffset(&SD);
- } else {
- if (Asm.getSymbolData(Symbol).getFlags() & ELF_Other_Weakref)
- WeakrefUsedInReloc.insert(RelocSymbol);
- else
- UsedInReloc.insert(RelocSymbol);
- Index = -1;
- }
- Addend = Value;
- }
-
- FixedValue = Value;
-
+ bool IsPCRel,
+ bool IsRelocWithSymbol,
+ int64_t Addend) {
// determine the type of the relocation
unsigned Type;
if (IsPCRel) {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
case FK_Data_4:
- Type = (RelocSymbol || Addend !=0) ? ELF::R_MICROBLAZE_32
- : ELF::R_MICROBLAZE_64;
+ Type = ((IsRelocWithSymbol || Addend !=0)
+ ? ELF::R_MICROBLAZE_32
+ : ELF::R_MICROBLAZE_64);
break;
case FK_Data_2:
Type = ELF::R_MICROBLAZE_32;
break;
}
}
-
- MCSymbolRefExpr::VariantKind Modifier = Target.getSymA()->getKind();
- if (RelocNeedsGOT(Modifier))
- NeedsGOT = true;
-
- uint64_t RelocOffset = Layout.getFragmentOffset(Fragment) +
- Fixup.getOffset();
-
- if (!HasRelocationAddend) Addend = 0;
- ELFRelocationEntry ERE(RelocOffset, Index, Type, RelocSymbol, Addend);
- Relocations[Fragment->getParent()].push_back(ERE);
+ return Type;
}
//===- X86ELFObjectWriter -------------------------------------------===//
X86ELFObjectWriter::~X86ELFObjectWriter()
{}
-void X86ELFObjectWriter::RecordRelocation(const MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup,
- MCValue Target,
- uint64_t &FixedValue) {
- int64_t Addend = 0;
- int Index = 0;
- int64_t Value = Target.getConstant();
- const MCSymbol *RelocSymbol = NULL;
-
- bool IsPCRel = isFixupKindPCRel(Fixup.getKind());
- if (!Target.isAbsolute()) {
- const MCSymbol &Symbol = Target.getSymA()->getSymbol();
- const MCSymbol &ASymbol = Symbol.AliasedSymbol();
- RelocSymbol = SymbolToReloc(Asm, Target, *Fragment);
-
- if (const MCSymbolRefExpr *RefB = Target.getSymB()) {
- const MCSymbol &SymbolB = RefB->getSymbol();
- MCSymbolData &SDB = Asm.getSymbolData(SymbolB);
- IsPCRel = true;
-
- // Offset of the symbol in the section
- int64_t a = Layout.getSymbolOffset(&SDB);
-
- // Ofeset of the relocation in the section
- int64_t b = Layout.getFragmentOffset(Fragment) + Fixup.getOffset();
- Value += b - a;
- }
-
- if (!RelocSymbol) {
- MCSymbolData &SD = Asm.getSymbolData(ASymbol);
- MCFragment *F = SD.getFragment();
-
- Index = F->getParent()->getOrdinal() + 1;
-
- // Offset of the symbol in the section
- Value += Layout.getSymbolOffset(&SD);
- } else {
- if (Asm.getSymbolData(Symbol).getFlags() & ELF_Other_Weakref)
- WeakrefUsedInReloc.insert(RelocSymbol);
- else
- UsedInReloc.insert(RelocSymbol);
- Index = -1;
- }
- Addend = Value;
- // Compensate for the addend on i386.
- if (Is64Bit)
- Value = 0;
- }
-
- FixedValue = Value;
-
+unsigned X86ELFObjectWriter::GetRelocType(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel,
+ bool IsRelocWithSymbol,
+ int64_t Addend) {
// determine the type of the relocation
MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
if (RelocNeedsGOT(Modifier))
NeedsGOT = true;
-
- uint64_t RelocOffset = Layout.getFragmentOffset(Fragment) +
- Fixup.getOffset();
-
- if (!HasRelocationAddend) Addend = 0;
- ELFRelocationEntry ERE(RelocOffset, Index, Type, RelocSymbol, Addend);
- Relocations[Fragment->getParent()].push_back(ERE);
+ return Type;
}
projects / oota-llvm.git / blobdiff