+++ /dev/null
-//===- lib/MC/MCELF.h - ELF MC --------------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains some support functions used by the ELF Streamer and
-// ObjectWriter.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_MC_MCELF_H
-#define LLVM_MC_MCELF_H
-
-namespace llvm {
-class MCSymbol;
-
-class MCELF {
- public:
- static void SetBinding(const MCSymbol &Sym, unsigned Binding);
- static unsigned GetBinding(const MCSymbol &Sym);
- static void SetType(const MCSymbol &Sym, unsigned Type);
- static unsigned GetType(const MCSymbol &Sym);
- static void SetVisibility(MCSymbol &Sym, unsigned Visibility);
- static unsigned GetVisibility(const MCSymbol &Sym);
- static void setOther(MCSymbol &Sym, unsigned Other);
- static unsigned getOther(const MCSymbol &Sym);
-};
-
-}
-
-#endif
class MCFragment;
class MCObjectWriter;
class MCSymbol;
+class MCSymbolELF;
class MCValue;
class raw_pwrite_stream;
struct ELFRelocationEntry {
uint64_t Offset; // Where is the relocation.
- const MCSymbol *Symbol; // The symbol to relocate with.
+ const MCSymbolELF *Symbol; // The symbol to relocate with.
unsigned Type; // The type of the relocation.
uint64_t Addend; // The addend to use.
- ELFRelocationEntry(uint64_t Offset, const MCSymbol *Symbol, unsigned Type,
+ ELFRelocationEntry(uint64_t Offset, const MCSymbolELF *Symbol, unsigned Type,
uint64_t Addend)
: Offset(Offset), Symbol(Symbol), Type(Type), Addend(Addend) {}
};
const MCExpr *getSize() const { return SymbolSize; }
+ void setVisibility(unsigned Visibility);
+ unsigned getVisibility() const;
+
+ void setOther(unsigned Other);
+ unsigned getOther() const;
+
+ void setType(unsigned Type) const;
+ unsigned getType() const;
+
+ void setBinding(unsigned Binding) const;
+ unsigned getBinding() const;
+
static bool classof(const MCSymbol *S) { return S->isELF(); }
};
}
MCCodeGenInfo.cpp
MCContext.cpp
MCDwarf.cpp
- MCELF.cpp
MCELFObjectTargetWriter.cpp
MCELFStreamer.cpp
MCExpr.cpp
MCStreamer.cpp
MCSubtargetInfo.cpp
MCSymbol.cpp
+ MCSymbolELF.cpp
MCSymbolizer.cpp
MCTargetOptions.cpp
MCValue.cpp
#include "llvm/MC/MCAsmLayout.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCFixupKindInfo.h"
class ELFObjectWriter : public MCObjectWriter {
static bool isFixupKindPCRel(const MCAssembler &Asm, unsigned Kind);
static uint64_t SymbolValue(const MCSymbol &Sym, const MCAsmLayout &Layout);
- static bool isInSymtab(const MCAsmLayout &Layout, const MCSymbol &Symbol,
+ static bool isInSymtab(const MCAsmLayout &Layout, const MCSymbolELF &Symbol,
bool Used, bool Renamed);
static bool isLocal(const MCSymbol &Symbol, bool IsUsedInReloc,
bool IsSignature);
// Support lexicographic sorting.
bool operator<(const ELFSymbolData &RHS) const {
- unsigned LHSType = MCELF::GetType(*Symbol);
- unsigned RHSType = MCELF::GetType(*RHS.Symbol);
+ unsigned LHSType = Symbol->getType();
+ unsigned RHSType = RHS.Symbol->getType();
if (LHSType == ELF::STT_SECTION && RHSType != ELF::STT_SECTION)
return false;
if (LHSType != ELF::STT_SECTION && RHSType == ELF::STT_SECTION)
SmallPtrSet<const MCSymbol *, 16> UsedInReloc;
SmallPtrSet<const MCSymbol *, 16> WeakrefUsedInReloc;
- DenseMap<const MCSymbol *, const MCSymbol *> Renames;
+ DenseMap<const MCSymbolELF *, const MCSymbolELF *> Renames;
llvm::DenseMap<const MCSectionELF *, std::vector<ELFRelocationEntry>>
Relocations;
// The presence of symbol versions causes undefined symbols and
// versions declared with @@@ to be renamed.
- for (const MCSymbol &Alias : Asm.symbols()) {
+ for (const MCSymbol &A : Asm.symbols()) {
+ const auto &Alias = cast<MCSymbolELF>(A);
// Not an alias.
if (!Alias.isVariable())
continue;
auto *Ref = dyn_cast<MCSymbolRefExpr>(Alias.getVariableValue());
if (!Ref)
continue;
- const MCSymbol &Symbol = Ref->getSymbol();
+ const auto &Symbol = cast<MCSymbolELF>(Ref->getSymbol());
StringRef AliasName = Alias.getName();
size_t Pos = AliasName.find('@');
// Aliases defined with .symvar copy the binding from the symbol they alias.
// This is the first place we are able to copy this information.
Alias.setExternal(Symbol.isExternal());
- MCELF::SetBinding(Alias, MCELF::GetBinding(Symbol));
+ Alias.setBinding(Symbol.getBinding());
StringRef Rest = AliasName.substr(Pos);
if (!Symbol.isUndefined() && !Rest.startswith("@@@"))
void ELFObjectWriter::writeSymbol(SymbolTableWriter &Writer,
uint32_t StringIndex, ELFSymbolData &MSD,
const MCAsmLayout &Layout) {
- const MCSymbol &Symbol = *MSD.Symbol;
+ const auto &Symbol = cast<MCSymbolELF>(*MSD.Symbol);
assert((!Symbol.getFragment() ||
(Symbol.getFragment()->getParent() == &Symbol.getSection())) &&
"The symbol's section doesn't match the fragment's symbol");
bool IsReserved = !Base || Symbol.isCommon();
// Binding and Type share the same byte as upper and lower nibbles
- uint8_t Binding = MCELF::GetBinding(Symbol);
- uint8_t Type = MCELF::GetType(Symbol);
+ uint8_t Binding = Symbol.getBinding();
+ uint8_t Type = Symbol.getType();
if (Base) {
- Type = mergeTypeForSet(Type, MCELF::GetType(*Base));
+ Type = mergeTypeForSet(Type, Base->getType());
}
uint8_t Info = (Binding << ELF_STB_Shift) | (Type << ELF_STT_Shift);
// Other and Visibility share the same byte with Visibility using the lower
// 2 bits
- uint8_t Visibility = MCELF::GetVisibility(Symbol);
- uint8_t Other = MCELF::getOther(Symbol) << (ELF_STO_Shift - ELF_STV_Shift);
+ uint8_t Visibility = Symbol.getVisibility();
+ uint8_t Other = Symbol.getOther() << (ELF_STO_Shift - ELF_STV_Shift);
Other |= Visibility;
uint64_t Value = SymbolValue(*MSD.Symbol, Layout);
// allows us to omit some local symbols from the symbol table.
bool ELFObjectWriter::shouldRelocateWithSymbol(const MCAssembler &Asm,
const MCSymbolRefExpr *RefA,
- const MCSymbol *Sym, uint64_t C,
+ const MCSymbol *S, uint64_t C,
unsigned Type) const {
+ const auto *Sym = cast_or_null<MCSymbolELF>(S);
// A PCRel relocation to an absolute value has no symbol (or section). We
// represent that with a relocation to a null section.
if (!RefA)
if (Sym->isUndefined())
return true;
- unsigned Binding = MCELF::GetBinding(*Sym);
+ unsigned Binding = Sym->getBinding();
switch(Binding) {
default:
llvm_unreachable("Invalid Binding");
// True if the assembler knows nothing about the final value of the symbol.
// This doesn't cover the comdat issues, since in those cases the assembler
// can at least know that all symbols in the section will move together.
-static bool isWeak(const MCSymbol &Sym) {
- if (MCELF::GetType(Sym) == ELF::STT_GNU_IFUNC)
+static bool isWeak(const MCSymbolELF &Sym) {
+ if (Sym.getType() == ELF::STT_GNU_IFUNC)
return true;
- switch (MCELF::GetBinding(Sym)) {
+ switch (Sym.getBinding()) {
default:
llvm_unreachable("Unknown binding");
case ELF::STB_LOCAL:
Fixup.getLoc(),
"No relocation available to represent this relative expression");
- const MCSymbol &SymB = RefB->getSymbol();
+ const auto &SymB = cast<MCSymbolELF>(RefB->getSymbol());
if (SymB.isUndefined())
Asm.getContext().reportFatalError(
// We either rejected the fixup or folded B into C at this point.
const MCSymbolRefExpr *RefA = Target.getSymA();
- const MCSymbol *SymA = RefA ? &RefA->getSymbol() : nullptr;
+ const auto *SymA = RefA ? cast<MCSymbolELF>(&RefA->getSymbol()) : nullptr;
unsigned Type = GetRelocType(Target, Fixup, IsPCRel);
bool RelocateWithSymbol = shouldRelocateWithSymbol(Asm, RefA, SymA, C, Type);
const MCSection *SecA =
(SymA && !SymA->isUndefined()) ? &SymA->getSection() : nullptr;
auto *ELFSec = cast_or_null<MCSectionELF>(SecA);
- const MCSymbol *SectionSymbol = ELFSec ? ELFSec->getBeginSymbol() : nullptr;
+ const auto *SectionSymbol =
+ ELFSec ? cast<MCSymbolELF>(ELFSec->getBeginSymbol()) : nullptr;
ELFRelocationEntry Rec(FixupOffset, SectionSymbol, Type, Addend);
Relocations[&FixupSection].push_back(Rec);
return;
}
if (SymA) {
- if (const MCSymbol *R = Renames.lookup(SymA))
+ if (const MCSymbolELF *R = Renames.lookup(SymA))
SymA = R;
if (const MCSymbol *WeakRef = getWeakRef(*RefA))
}
bool ELFObjectWriter::isInSymtab(const MCAsmLayout &Layout,
- const MCSymbol &Symbol, bool Used,
+ const MCSymbolELF &Symbol, bool Used,
bool Renamed) {
if (Symbol.isVariable()) {
const MCExpr *Expr = Symbol.getVariableValue();
return false;
}
- bool IsGlobal = MCELF::GetBinding(Symbol) == ELF::STB_GLOBAL;
+ bool IsGlobal = Symbol.getBinding() == ELF::STB_GLOBAL;
if (!Symbol.isVariable() && Symbol.isUndefined() && !IsGlobal)
return false;
- if (MCELF::GetType(Symbol) == ELF::STT_SECTION)
+ if (Symbol.getType() == ELF::STT_SECTION)
return true;
if (Symbol.isTemporary())
// Add the data for the symbols.
bool HasLargeSectionIndex = false;
- for (const MCSymbol &Symbol : Asm.symbols()) {
+ for (const MCSymbol &S : Asm.symbols()) {
+ const auto &Symbol = cast<MCSymbolELF>(S);
bool Used = UsedInReloc.count(&Symbol);
bool WeakrefUsed = WeakrefUsedInReloc.count(&Symbol);
bool isSignature = RevGroupMap.count(&Symbol);
// Undefined symbols are global, but this is the first place we
// are able to set it.
bool Local = isLocal(Symbol, Used, isSignature);
- if (!Local && MCELF::GetBinding(Symbol) == ELF::STB_LOCAL)
- MCELF::SetBinding(Symbol, ELF::STB_GLOBAL);
+ if (!Local && Symbol.getBinding() == ELF::STB_LOCAL)
+ Symbol.setBinding(ELF::STB_GLOBAL);
if (Symbol.isAbsolute()) {
MSD.SectionIndex = ELF::SHN_ABS;
MSD.SectionIndex = ELF::SHN_UNDEF;
}
if (!Used && WeakrefUsed)
- MCELF::SetBinding(Symbol, ELF::STB_WEAK);
+ Symbol.setBinding(ELF::STB_WEAK);
} else {
const MCSectionELF &Section =
static_cast<const MCSectionELF &>(Symbol.getSection());
}
// Sections have their own string table
- if (MCELF::GetType(Symbol) != ELF::STT_SECTION)
+ if (Symbol.getType() != ELF::STT_SECTION)
MSD.Name = StrTabBuilder.add(Name);
if (Local)
unsigned Index = FileNames.size() + 1;
for (ELFSymbolData &MSD : LocalSymbolData) {
- unsigned StringIndex = MCELF::GetType(*MSD.Symbol) == ELF::STT_SECTION
+ unsigned StringIndex = MSD.Symbol->getType() == ELF::STT_SECTION
? 0
: StrTabBuilder.getOffset(MSD.Name);
MSD.Symbol->setIndex(Index++);
unsigned StringIndex = StrTabBuilder.getOffset(MSD.Name);
MSD.Symbol->setIndex(Index++);
writeSymbol(Writer, StringIndex, MSD, Layout);
- assert(MCELF::GetBinding(*MSD.Symbol) != ELF::STB_LOCAL);
+ assert(MSD.Symbol->getBinding() != ELF::STB_LOCAL);
}
uint64_t SecEnd = OS.tell();
}
bool ELFObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl(
- const MCAssembler &Asm, const MCSymbol &SymA, const MCFragment &FB,
+ const MCAssembler &Asm, const MCSymbol &SA, const MCFragment &FB,
bool InSet, bool IsPCRel) const {
+ const auto &SymA = cast<MCSymbolELF>(SA);
if (IsPCRel) {
assert(!InSet);
if (::isWeak(SymA))
InSet, IsPCRel);
}
-bool ELFObjectWriter::isWeak(const MCSymbol &Sym) const {
+bool ELFObjectWriter::isWeak(const MCSymbol &S) const {
+ const auto &Sym = cast<MCSymbolELF>(S);
if (::isWeak(Sym))
return true;
// We could try to return false for more cases, like the reference
// being in the same comdat or Sym being an alias to another global,
// but it is not clear if it is worth the effort.
- if (MCELF::GetBinding(Sym) != ELF::STB_GLOBAL)
+ if (Sym.getBinding() != ELF::STB_GLOBAL)
return false;
if (!Sym.isInSection())
+++ /dev/null
-//===- lib/MC/MCELF.cpp - MC ELF ------------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF object file writer information.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCELF.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCELFSymbolFlags.h"
-#include "llvm/MC/MCFixupKindInfo.h"
-#include "llvm/Support/ELF.h"
-
-namespace llvm {
-
-void MCELF::SetBinding(const MCSymbol &Sym, unsigned Binding) {
- assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
- Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
- uint32_t OtherFlags = Sym.getFlags() & ~(0xf << ELF_STB_Shift);
- Sym.setFlags(OtherFlags | (Binding << ELF_STB_Shift));
-}
-
-unsigned MCELF::GetBinding(const MCSymbol &Sym) {
- uint32_t Binding = (Sym.getFlags() & (0xf << ELF_STB_Shift)) >> ELF_STB_Shift;
- assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
- Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
- return Binding;
-}
-
-void MCELF::SetType(const MCSymbol &Sym, unsigned Type) {
- assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
- Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
- Type == ELF::STT_COMMON || Type == ELF::STT_TLS ||
- Type == ELF::STT_GNU_IFUNC);
-
- uint32_t OtherFlags = Sym.getFlags() & ~(0xf << ELF_STT_Shift);
- Sym.setFlags(OtherFlags | (Type << ELF_STT_Shift));
-}
-
-unsigned MCELF::GetType(const MCSymbol &Sym) {
- uint32_t Type = (Sym.getFlags() & (0xf << ELF_STT_Shift)) >> ELF_STT_Shift;
- assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
- Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
- Type == ELF::STT_COMMON || Type == ELF::STT_TLS || Type == ELF::STT_GNU_IFUNC);
- return Type;
-}
-
-// Visibility is stored in the first two bits of st_other
-// st_other values are stored in the second byte of get/setFlags
-void MCELF::SetVisibility(MCSymbol &Sym, unsigned Visibility) {
- assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
- Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
-
- uint32_t OtherFlags = Sym.getFlags() & ~(0x3 << ELF_STV_Shift);
- Sym.setFlags(OtherFlags | (Visibility << ELF_STV_Shift));
-}
-
-unsigned MCELF::GetVisibility(const MCSymbol &Sym) {
- unsigned Visibility =
- (Sym.getFlags() & (0x3 << ELF_STV_Shift)) >> ELF_STV_Shift;
- assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
- Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
- return Visibility;
-}
-
-// Other is stored in the last six bits of st_other
-// st_other values are stored in the second byte of get/setFlags
-void MCELF::setOther(MCSymbol &Sym, unsigned Other) {
- uint32_t OtherFlags = Sym.getFlags() & ~(0x3f << ELF_STO_Shift);
- Sym.setFlags(OtherFlags | (Other << ELF_STO_Shift));
-}
-
-unsigned MCELF::getOther(const MCSymbol &Sym) {
- unsigned Other = (Sym.getFlags() & (0x3f << ELF_STO_Shift)) >> ELF_STO_Shift;
- return Other;
-}
-
-}
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
SwitchSection(Ctx.getAsmInfo()->getNonexecutableStackSection(Ctx));
}
-void MCELFStreamer::EmitLabel(MCSymbol *Symbol) {
+void MCELFStreamer::EmitLabel(MCSymbol *S) {
+ auto *Symbol = cast<MCSymbolELF>(S);
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
MCObjectStreamer::EmitLabel(Symbol);
const MCSectionELF &Section =
static_cast<const MCSectionELF&>(Symbol->getSection());
if (Section.getFlags() & ELF::SHF_TLS)
- MCELF::SetType(*Symbol, ELF::STT_TLS);
+ Symbol->setType(ELF::STT_TLS);
}
void MCELFStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
this->MCObjectStreamer::ChangeSection(Section, Subsection);
MCContext &Ctx = getContext();
- MCSymbol *Begin = Section->getBeginSymbol();
+ auto *Begin = cast_or_null<MCSymbolELF>(Section->getBeginSymbol());
if (!Begin) {
Begin = Ctx.getOrCreateSectionSymbol(*SectionELF);
Section->setBeginSymbol(Begin);
}
if (Begin->isUndefined()) {
Asm.registerSymbol(*Begin);
- MCELF::SetType(*Begin, ELF::STT_SECTION);
+ Begin->setType(ELF::STT_SECTION);
}
}
return T2;
}
-bool MCELFStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
- MCSymbolAttr Attribute) {
+bool MCELFStreamer::EmitSymbolAttribute(MCSymbol *S, MCSymbolAttr Attribute) {
+ auto *Symbol = cast<MCSymbolELF>(S);
// Indirect symbols are handled differently, to match how 'as' handles
// them. This makes writing matching .o files easier.
if (Attribute == MCSA_IndirectSymbol) {
break;
case MCSA_ELF_TypeGnuUniqueObject:
- MCELF::SetType(
- *Symbol, CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_OBJECT));
- MCELF::SetBinding(*Symbol, ELF::STB_GNU_UNIQUE);
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_OBJECT));
+ Symbol->setBinding(ELF::STB_GNU_UNIQUE);
Symbol->setExternal(true);
BindingExplicitlySet.insert(Symbol);
break;
case MCSA_Global:
- MCELF::SetBinding(*Symbol, ELF::STB_GLOBAL);
+ Symbol->setBinding(ELF::STB_GLOBAL);
Symbol->setExternal(true);
BindingExplicitlySet.insert(Symbol);
break;
case MCSA_WeakReference:
case MCSA_Weak:
- MCELF::SetBinding(*Symbol, ELF::STB_WEAK);
+ Symbol->setBinding(ELF::STB_WEAK);
Symbol->setExternal(true);
BindingExplicitlySet.insert(Symbol);
break;
case MCSA_Local:
- MCELF::SetBinding(*Symbol, ELF::STB_LOCAL);
+ Symbol->setBinding(ELF::STB_LOCAL);
Symbol->setExternal(false);
BindingExplicitlySet.insert(Symbol);
break;
case MCSA_ELF_TypeFunction:
- MCELF::SetType(*Symbol,
- CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_FUNC));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_FUNC));
break;
case MCSA_ELF_TypeIndFunction:
- MCELF::SetType(*Symbol, CombineSymbolTypes(MCELF::GetType(*Symbol),
- ELF::STT_GNU_IFUNC));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_GNU_IFUNC));
break;
case MCSA_ELF_TypeObject:
- MCELF::SetType(
- *Symbol, CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_OBJECT));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_OBJECT));
break;
case MCSA_ELF_TypeTLS:
- MCELF::SetType(*Symbol,
- CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_TLS));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_TLS));
break;
case MCSA_ELF_TypeCommon:
// TODO: Emit these as a common symbol.
- MCELF::SetType(
- *Symbol, CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_OBJECT));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_OBJECT));
break;
case MCSA_ELF_TypeNoType:
- MCELF::SetType(
- *Symbol, CombineSymbolTypes(MCELF::GetType(*Symbol), ELF::STT_NOTYPE));
+ Symbol->setType(CombineSymbolTypes(Symbol->getType(), ELF::STT_NOTYPE));
break;
case MCSA_Protected:
- MCELF::SetVisibility(*Symbol, ELF::STV_PROTECTED);
+ Symbol->setVisibility(ELF::STV_PROTECTED);
break;
case MCSA_Hidden:
- MCELF::SetVisibility(*Symbol, ELF::STV_HIDDEN);
+ Symbol->setVisibility(ELF::STV_HIDDEN);
break;
case MCSA_Internal:
- MCELF::SetVisibility(*Symbol, ELF::STV_INTERNAL);
+ Symbol->setVisibility(ELF::STV_INTERNAL);
break;
}
return true;
}
-void MCELFStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+void MCELFStreamer::EmitCommonSymbol(MCSymbol *S, uint64_t Size,
unsigned ByteAlignment) {
+ auto *Symbol = cast<MCSymbolELF>(S);
getAssembler().registerSymbol(*Symbol);
if (!BindingExplicitlySet.count(Symbol)) {
- MCELF::SetBinding(*Symbol, ELF::STB_GLOBAL);
+ Symbol->setBinding(ELF::STB_GLOBAL);
Symbol->setExternal(true);
}
- MCELF::SetType(*Symbol, ELF::STT_OBJECT);
+ Symbol->setType(ELF::STT_OBJECT);
- if (MCELF::GetBinding(*Symbol) == ELF_STB_Local) {
+ if (Symbol->getBinding() == ELF_STB_Local) {
MCSection *Section = getAssembler().getContext().getELFSection(
".bss", ELF::SHT_NOBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);
Symbol->setSize(Value);
}
-void MCELFStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+void MCELFStreamer::EmitLocalCommonSymbol(MCSymbol *S, uint64_t Size,
unsigned ByteAlignment) {
+ auto *Symbol = cast<MCSymbolELF>(S);
// FIXME: Should this be caught and done earlier?
getAssembler().registerSymbol(*Symbol);
- MCELF::SetBinding(*Symbol, ELF::STB_LOCAL);
+ Symbol->setBinding(ELF::STB_LOCAL);
Symbol->setExternal(false);
BindingExplicitlySet.insert(Symbol);
EmitCommonSymbol(Symbol, Size, ByteAlignment);
break;
}
getAssembler().registerSymbol(symRef.getSymbol());
- MCELF::SetType(symRef.getSymbol(), ELF::STT_TLS);
+ cast<MCSymbolELF>(symRef.getSymbol()).setType(ELF::STT_TLS);
break;
}
--- /dev/null
+//===- lib/MC/MCSymbolELF.cpp ---------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCAssembler.h"
+#include "llvm/MC/MCSymbolELF.h"
+#include "llvm/MC/MCELFSymbolFlags.h"
+#include "llvm/MC/MCFixupKindInfo.h"
+#include "llvm/Support/ELF.h"
+
+namespace llvm {
+
+void MCSymbolELF::setBinding(unsigned Binding) const {
+ assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
+ Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
+ uint32_t OtherFlags = getFlags() & ~(0xf << ELF_STB_Shift);
+ setFlags(OtherFlags | (Binding << ELF_STB_Shift));
+}
+
+unsigned MCSymbolELF::getBinding() const {
+ uint32_t Binding = (getFlags() & (0xf << ELF_STB_Shift)) >> ELF_STB_Shift;
+ assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
+ Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
+ return Binding;
+}
+
+void MCSymbolELF::setType(unsigned Type) const {
+ assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
+ Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
+ Type == ELF::STT_COMMON || Type == ELF::STT_TLS ||
+ Type == ELF::STT_GNU_IFUNC);
+
+ uint32_t OtherFlags = getFlags() & ~(0xf << ELF_STT_Shift);
+ setFlags(OtherFlags | (Type << ELF_STT_Shift));
+}
+
+unsigned MCSymbolELF::getType() const {
+ uint32_t Type = (getFlags() & (0xf << ELF_STT_Shift)) >> ELF_STT_Shift;
+ assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
+ Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
+ Type == ELF::STT_COMMON || Type == ELF::STT_TLS ||
+ Type == ELF::STT_GNU_IFUNC);
+ return Type;
+}
+
+// Visibility is stored in the first two bits of st_other
+// st_other values are stored in the second byte of get/setFlags
+void MCSymbolELF::setVisibility(unsigned Visibility) {
+ assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
+ Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
+
+ uint32_t OtherFlags = getFlags() & ~(0x3 << ELF_STV_Shift);
+ setFlags(OtherFlags | (Visibility << ELF_STV_Shift));
+}
+
+unsigned MCSymbolELF::getVisibility() const {
+ unsigned Visibility = (getFlags() & (0x3 << ELF_STV_Shift)) >> ELF_STV_Shift;
+ assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
+ Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
+ return Visibility;
+}
+
+// Other is stored in the last six bits of st_other
+// st_other values are stored in the second byte of get/setFlags
+void MCSymbolELF::setOther(unsigned Other) {
+ uint32_t OtherFlags = getFlags() & ~(0x3f << ELF_STO_Shift);
+ setFlags(OtherFlags | (Other << ELF_STO_Shift));
+}
+
+unsigned MCSymbolELF::getOther() const {
+ unsigned Other = (getFlags() & (0x3f << ELF_STO_Shift)) >> ELF_STO_Shift;
+ return Other;
+}
+}
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
MCSymbol *Start = getContext().createTempSymbol();
EmitLabel(Start);
- MCSymbol *Symbol = getContext().getOrCreateSymbol(
- Name + "." + Twine(MappingSymbolCounter++));
+ auto *Symbol = cast<MCSymbolELF>(getContext().getOrCreateSymbol(
+ Name + "." + Twine(MappingSymbolCounter++)));
getAssembler().registerSymbol(*Symbol);
- MCELF::SetType(*Symbol, ELF::STT_NOTYPE);
- MCELF::SetBinding(*Symbol, ELF::STB_LOCAL);
+ Symbol->setType(ELF::STT_NOTYPE);
+ Symbol->setBinding(ELF::STB_LOCAL);
Symbol->setExternal(false);
auto Sec = getCurrentSection().first;
assert(Sec && "need a section");
#include "AArch64MCExpr.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Object/ELF.h"
#include "llvm/Support/ErrorHandling.h"
// We're known to be under a TLS fixup, so any symbol should be
// modified. There should be only one.
const MCSymbolRefExpr &SymRef = *cast<MCSymbolRefExpr>(Expr);
- MCELF::SetType(SymRef.getSymbol(), ELF::STT_TLS);
+ cast<MCSymbolELF>(SymRef.getSymbol()).setType(ELF::STT_TLS);
break;
}
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/ARMBuildAttributes.h"
#include "llvm/Support/ARMEHABI.h"
MCSymbol *Start = getContext().createTempSymbol();
EmitLabel(Start);
- MCSymbol *Symbol =
- getContext().getOrCreateSymbol(Name + "." +
- Twine(MappingSymbolCounter++));
+ auto *Symbol = cast<MCSymbolELF>(getContext().getOrCreateSymbol(
+ Name + "." + Twine(MappingSymbolCounter++)));
getAssembler().registerSymbol(*Symbol);
- MCELF::SetType(*Symbol, ELF::STT_NOTYPE);
- MCELF::SetBinding(*Symbol, ELF::STB_LOCAL);
+ Symbol->setType(ELF::STT_NOTYPE);
+ Symbol->setBinding(ELF::STB_LOCAL);
Symbol->setExternal(false);
AssignSection(Symbol, getCurrentSection().first);
return;
Streamer.getOrCreateSymbolData(Symbol);
- unsigned Type = MCELF::GetType(*Symbol);
+ unsigned Type = cast<MCSymbolELF>(Symbol)->getType();
if (Type == ELF_STT_Func || Type == ELF_STT_GnuIFunc)
Streamer.EmitThumbFunc(Symbol);
}
#include "MCTargetDesc/MipsMCTargetDesc.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/ErrorHandling.h"
#include <list>
if (Type == ELF::R_MIPS16_HI16)
return ELF::R_MIPS16_LO16;
- if (MCELF::GetBinding(*Reloc.Symbol) != ELF::STB_LOCAL)
+ if (Reloc.Symbol->getBinding() != ELF::STB_LOCAL)
return ELF::R_MIPS_NONE;
if (Type == ELF::R_MIPS_GOT16)
return true;
case ELF::R_MIPS_32:
- if (MCELF::getOther(Sym) & (ELF::STO_MIPS_MICROMIPS >> 2))
+ if (cast<MCSymbolELF>(Sym).getOther() & (ELF::STO_MIPS_MICROMIPS >> 2))
return true;
// falltrough
case ELF::R_MIPS_26:
#include "MipsELFStreamer.h"
#include "MipsTargetStreamer.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Support/ELF.h"
using namespace llvm;
// FIXME: Also mark labels when in MIPS16 mode.
if (ELFTargetStreamer->isMicroMipsEnabled()) {
- for (auto Label : Labels) {
+ for (auto *L : Labels) {
+ auto *Label = cast<MCSymbolELF>(L);
getOrCreateSymbolData(Label);
// The "other" values are stored in the last 6 bits of the second byte.
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- MCELF::setOther(*Label, ELF::STO_MIPS_MICROMIPS >> 2);
+ Label->setOther(ELF::STO_MIPS_MICROMIPS >> 2);
}
}
#include "MipsTargetObjectFile.h"
#include "MipsTargetStreamer.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
MCA.setELFHeaderEFlags(EFlags);
}
-void MipsTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
+void MipsTargetELFStreamer::emitLabel(MCSymbol *S) {
+ auto *Symbol = cast<MCSymbolELF>(S);
if (!isMicroMipsEnabled())
return;
getStreamer().getOrCreateSymbolData(Symbol);
- uint8_t Type = MCELF::GetType(*Symbol);
+ uint8_t Type = Symbol->getType();
if (Type != ELF::STT_FUNC)
return;
// The "other" values are stored in the last 6 bits of the second byte
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- MCELF::setOther(*Symbol, ELF::STO_MIPS_MICROMIPS >> 2);
+ Symbol->setOther(ELF::STO_MIPS_MICROMIPS >> 2);
}
void MipsTargetELFStreamer::finish() {
emitMipsAbiFlags();
}
-void MipsTargetELFStreamer::emitAssignment(MCSymbol *Symbol,
- const MCExpr *Value) {
+void MipsTargetELFStreamer::emitAssignment(MCSymbol *S, const MCExpr *Value) {
+ auto *Symbol = cast<MCSymbolELF>(S);
// If on rhs is micromips symbol then mark Symbol as microMips.
if (Value->getKind() != MCExpr::SymbolRef)
return;
- const MCSymbol &RhsSym =
- static_cast<const MCSymbolRefExpr *>(Value)->getSymbol();
+ const auto &RhsSym = cast<MCSymbolELF>(
+ static_cast<const MCSymbolRefExpr *>(Value)->getSymbol());
- if (!(MCELF::getOther(RhsSym) & (ELF::STO_MIPS_MICROMIPS >> 2)))
+ if (!(RhsSym.getOther() & (ELF::STO_MIPS_MICROMIPS >> 2)))
return;
// The "other" values are stored in the last 6 bits of the second byte.
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- MCELF::setOther(*Symbol, ELF::STO_MIPS_MICROMIPS >> 2);
+ Symbol->setOther(ELF::STO_MIPS_MICROMIPS >> 2);
}
MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCTargetAsmParser.h"
#include "llvm/Support/SourceMgr.h"
Error(L, "expected identifier in directive");
return false;
}
- MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
+ MCSymbolELF *Sym = cast<MCSymbolELF>(getContext().getOrCreateSymbol(Name));
if (getLexer().isNot(AsmToken::Comma)) {
Error(L, "unexpected token in directive");
#include "MCTargetDesc/PPCFixupKinds.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCFixupKindInfo.h"
#include "llvm/MC/MCMachObjectWriter.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
// to resolve the fixup directly. Emit a relocation and leave
// resolution of the final target address to the linker.
if (const MCSymbolRefExpr *A = Target.getSymA()) {
- // The "other" values are stored in the last 6 bits of the second byte.
- // The traditional defines for STO values assume the full byte and thus
- // the shift to pack it.
- unsigned Other = MCELF::getOther(A->getSymbol()) << 2;
- if ((Other & ELF::STO_PPC64_LOCAL_MASK) != 0)
- IsResolved = false;
+ if (const auto *S = dyn_cast<MCSymbolELF>(&A->getSymbol())) {
+ // The "other" values are stored in the last 6 bits of the second
+ // byte. The traditional defines for STO values assume the full byte
+ // and thus the shift to pack it.
+ unsigned Other = S->getOther() << 2;
+ if ((Other & ELF::STO_PPC64_LOCAL_MASK) != 0)
+ IsResolved = false;
+ }
}
break;
}
#include "MCTargetDesc/PPCFixupKinds.h"
#include "MCTargetDesc/PPCMCExpr.h"
#include "llvm/ADT/STLExtras.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/ErrorHandling.h"
// The "other" values are stored in the last 6 bits of the second byte.
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- unsigned Other = MCELF::getOther(Sym) << 2;
+ unsigned Other = cast<MCSymbolELF>(Sym).getOther() << 2;
return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0;
}
}
#include "PPCMCAsmInfo.h"
#include "PPCTargetStreamer.h"
#include "llvm/MC/MCCodeGenInfo.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MachineLocation.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
void emitAbiVersion(int AbiVersion) override {
OS << "\t.abiversion " << AbiVersion << '\n';
}
- void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
OS << "\t.localentry\t" << *S << ", " << *LocalOffset << '\n';
}
};
Flags |= (AbiVersion & ELF::EF_PPC64_ABI);
MCA.setELFHeaderEFlags(Flags);
}
- void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
MCAssembler &MCA = getStreamer().getAssembler();
int64_t Res;
// The "other" values are stored in the last 6 bits of the second byte.
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- unsigned Other = MCELF::getOther(*S) << 2;
+ unsigned Other = S->getOther() << 2;
Other &= ~ELF::STO_PPC64_LOCAL_MASK;
Other |= Encoded;
- MCELF::setOther(*S, Other >> 2);
+ S->setOther(Other >> 2);
// For GAS compatibility, unless we already saw a .abiversion directive,
// set e_flags to indicate ELFv2 ABI.
if ((Flags & ELF::EF_PPC64_ABI) == 0)
MCA.setELFHeaderEFlags(Flags | 2);
}
- void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override {
+ void emitAssignment(MCSymbol *S, const MCExpr *Value) override {
+ auto *Symbol = cast<MCSymbolELF>(S);
// When encoding an assignment to set symbol A to symbol B, also copy
// the st_other bits encoding the local entry point offset.
if (Value->getKind() != MCExpr::SymbolRef)
return;
- const MCSymbol &RhsSym =
- static_cast<const MCSymbolRefExpr *>(Value)->getSymbol();
+ const auto &RhsSym = cast<MCSymbolELF>(
+ static_cast<const MCSymbolRefExpr *>(Value)->getSymbol());
// The "other" values are stored in the last 6 bits of the second byte.
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
- unsigned Other = MCELF::getOther(*Symbol) << 2;
+ unsigned Other = Symbol->getOther() << 2;
Other &= ~ELF::STO_PPC64_LOCAL_MASK;
- Other |= (MCELF::getOther(RhsSym) << 2) & ELF::STO_PPC64_LOCAL_MASK;
- MCELF::setOther(*Symbol, Other >> 2);
+ Other |= (RhsSym.getOther() << 2) & ELF::STO_PPC64_LOCAL_MASK;
+ Symbol->setOther(Other >> 2);
}
};
void emitAbiVersion(int AbiVersion) override {
llvm_unreachable("Unknown pseudo-op: .abiversion");
}
- void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
llvm_unreachable("Unknown pseudo-op: .localentry");
}
};
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
static_cast<PPCTargetStreamer *>(OutStreamer->getTargetStreamer());
if (TS)
- TS->emitLocalEntry(CurrentFnSym, LocalOffsetExp);
+ TS->emitLocalEntry(cast<MCSymbolELF>(CurrentFnSym), LocalOffsetExp);
}
}
virtual void emitTCEntry(const MCSymbol &S) = 0;
virtual void emitMachine(StringRef CPU) = 0;
virtual void emitAbiVersion(int AbiVersion) = 0;
- virtual void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) = 0;
+ virtual void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) = 0;
};
}
#include "SparcMCExpr.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCObjectStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Object/ELF.h"
case MCExpr::SymbolRef: {
const MCSymbolRefExpr &SymRef = *cast<MCSymbolRefExpr>(Expr);
- MCELF::SetType(SymRef.getSymbol(), ELF::STT_TLS);
+ cast<MCSymbolELF>(SymRef.getSymbol()).setType(ELF::STT_TLS);
break;
}
projects / oota-llvm.git / commitdiff