#include "PPCMCAsmInfo.h"
#include "PPCTargetStreamer.h"
#include "llvm/MC/MCCodeGenInfo.h"
-#include "llvm/MC/MCELF.h"
+#include "llvm/MC/MCContext.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"
return X;
}
-static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
- Triple TheTriple(TT);
- bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
- TheTriple.getArch() == Triple::ppc64le);
+static MCRegisterInfo *createPPCMCRegisterInfo(const Triple &TT) {
+ bool isPPC64 =
+ (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
unsigned Flavour = isPPC64 ? 0 : 1;
unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
return X;
}
-static MCSubtargetInfo *createPPCMCSubtargetInfo(StringRef TT, StringRef CPU,
- StringRef FS) {
- MCSubtargetInfo *X = new MCSubtargetInfo();
- InitPPCMCSubtargetInfo(X, TT, CPU, FS);
- return X;
+static MCSubtargetInfo *createPPCMCSubtargetInfo(const Triple &TT,
+ StringRef CPU, StringRef FS) {
+ return createPPCMCSubtargetInfoImpl(TT, CPU, FS);
}
-static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
- Triple TheTriple(TT);
+static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI,
+ const Triple &TheTriple) {
bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
TheTriple.getArch() == Triple::ppc64le);
if (TheTriple.isOSDarwin())
MAI = new PPCMCAsmInfoDarwin(isPPC64, TheTriple);
else
- MAI = new PPCLinuxMCAsmInfo(isPPC64, TheTriple);
+ MAI = new PPCELFMCAsmInfo(isPPC64, TheTriple);
// Initial state of the frame pointer is R1.
unsigned Reg = isPPC64 ? PPC::X1 : PPC::R1;
return MAI;
}
-static MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM,
+static MCCodeGenInfo *createPPCMCCodeGenInfo(const Triple &TT, Reloc::Model RM,
CodeModel::Model CM,
CodeGenOpt::Level OL) {
MCCodeGenInfo *X = new MCCodeGenInfo();
if (RM == Reloc::Default) {
- Triple T(TT);
- if (T.isOSDarwin())
+ if (TT.isOSDarwin())
RM = Reloc::DynamicNoPIC;
else
RM = Reloc::Static;
}
if (CM == CodeModel::Default) {
- Triple T(TT);
- if (!T.isOSDarwin() &&
- (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le))
+ if (!TT.isOSDarwin() &&
+ (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le))
CM = CodeModel::Medium;
}
- X->InitMCCodeGenInfo(RM, CM, OL);
+ X->initMCCodeGenInfo(RM, CM, OL);
return X;
}
void emitMachine(StringRef CPU) override {
OS << "\t.machine " << CPU << '\n';
}
- virtual void emitAbiVersion(int AbiVersion) override {
+ void emitAbiVersion(int AbiVersion) override {
OS << "\t.abiversion " << AbiVersion << '\n';
}
- virtual void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) {
- OS << "\t.localentry\t" << *S << ", " << *LocalOffset << '\n';
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
+ const MCAsmInfo *MAI = Streamer.getContext().getAsmInfo();
+
+ OS << "\t.localentry\t";
+ S->print(OS, MAI);
+ OS << ", ";
+ LocalOffset->print(OS, MAI);
+ OS << '\n';
}
};
MCELFStreamer &getStreamer() {
return static_cast<MCELFStreamer &>(Streamer);
}
- virtual void emitTCEntry(const MCSymbol &S) override {
+ void emitTCEntry(const MCSymbol &S) override {
// Creates a R_PPC64_TOC relocation
+ Streamer.EmitValueToAlignment(8);
Streamer.EmitSymbolValue(&S, 8);
}
void emitMachine(StringRef CPU) override {
// FIXME: Is there anything to do in here or does this directive only
// limit the parser?
}
- virtual void emitAbiVersion(int AbiVersion) override {
+ void emitAbiVersion(int AbiVersion) override {
MCAssembler &MCA = getStreamer().getAssembler();
unsigned Flags = MCA.getELFHeaderEFlags();
Flags &= ~ELF::EF_PPC64_ABI;
Flags |= (AbiVersion & ELF::EF_PPC64_ABI);
MCA.setELFHeaderEFlags(Flags);
}
- virtual void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) {
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
MCAssembler &MCA = getStreamer().getAssembler();
- MCSymbolData &Data = getStreamer().getOrCreateSymbolData(S);
int64_t Res;
- if (!LocalOffset->EvaluateAsAbsolute(Res, MCA))
+ if (!LocalOffset->evaluateAsAbsolute(Res, MCA))
report_fatal_error(".localentry expression must be absolute.");
unsigned Encoded = ELF::encodePPC64LocalEntryOffset(Res);
if (Res != ELF::decodePPC64LocalEntryOffset(Encoded))
report_fatal_error(".localentry expression cannot be encoded.");
- // 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(Data) << 2;
+ unsigned Other = S->getOther();
Other &= ~ELF::STO_PPC64_LOCAL_MASK;
Other |= Encoded;
- MCELF::setOther(Data, Other >> 2);
+ S->setOther(Other);
// 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 *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 auto &RhsSym = cast<MCSymbolELF>(
+ static_cast<const MCSymbolRefExpr *>(Value)->getSymbol());
+ unsigned Other = Symbol->getOther();
+ Other &= ~ELF::STO_PPC64_LOCAL_MASK;
+ Other |= RhsSym.getOther() & ELF::STO_PPC64_LOCAL_MASK;
+ Symbol->setOther(Other);
+ }
};
class PPCTargetMachOStreamer : public PPCTargetStreamer {
// FIXME: We should update the CPUType, CPUSubType in the Object file if
// the new values are different from the defaults.
}
- virtual void emitAbiVersion(int AbiVersion) override {
+ void emitAbiVersion(int AbiVersion) override {
llvm_unreachable("Unknown pseudo-op: .abiversion");
}
- virtual void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) {
+ void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
llvm_unreachable("Unknown pseudo-op: .localentry");
}
};
}
-// This is duplicated code. Refactor this.
-static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
- MCContext &Ctx, MCAsmBackend &MAB,
- raw_ostream &OS,
- MCCodeEmitter *Emitter,
- const MCSubtargetInfo &STI,
- bool RelaxAll,
- bool NoExecStack) {
- if (Triple(TT).isOSDarwin()) {
- MCStreamer *S = createMachOStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
- new PPCTargetMachOStreamer(*S);
- return S;
- }
-
- MCStreamer *S =
- createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll, NoExecStack);
- new PPCTargetELFStreamer(*S);
- return S;
+static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
+ formatted_raw_ostream &OS,
+ MCInstPrinter *InstPrint,
+ bool isVerboseAsm) {
+ return new PPCTargetAsmStreamer(S, OS);
}
-static MCStreamer *
-createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useDwarfDirectory,
- MCInstPrinter *InstPrint, MCCodeEmitter *CE,
- MCAsmBackend *TAB, bool ShowInst) {
-
- MCStreamer *S = llvm::createAsmStreamer(
- Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
- new PPCTargetAsmStreamer(*S, OS);
- return S;
+static MCTargetStreamer *
+createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
+ const Triple &TT = STI.getTargetTriple();
+ if (TT.isOSBinFormatELF())
+ return new PPCTargetELFStreamer(S);
+ return new PPCTargetMachOStreamer(S);
}
-static MCInstPrinter *createPPCMCInstPrinter(const Target &T,
+static MCInstPrinter *createPPCMCInstPrinter(const Triple &T,
unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
- const MCRegisterInfo &MRI,
- const MCSubtargetInfo &STI) {
- bool isDarwin = Triple(STI.getTargetTriple()).isOSDarwin();
- return new PPCInstPrinter(MAI, MII, MRI, isDarwin);
+ const MCRegisterInfo &MRI) {
+ return new PPCInstPrinter(MAI, MII, MRI, T.isOSDarwin());
}
extern "C" void LLVMInitializePowerPCTargetMC() {
- // Register the MC asm info.
- RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
- RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
- RegisterMCAsmInfoFn E(ThePPC64LETarget, createPPCMCAsmInfo);
-
- // Register the MC codegen info.
- TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
- TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
- TargetRegistry::RegisterMCCodeGenInfo(ThePPC64LETarget,
- createPPCMCCodeGenInfo);
-
- // Register the MC instruction info.
- TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
- TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
- TargetRegistry::RegisterMCInstrInfo(ThePPC64LETarget,
- createPPCMCInstrInfo);
-
- // Register the MC register info.
- TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
- TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
- TargetRegistry::RegisterMCRegInfo(ThePPC64LETarget, createPPCMCRegisterInfo);
-
- // Register the MC subtarget info.
- TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
- createPPCMCSubtargetInfo);
- TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
- createPPCMCSubtargetInfo);
- TargetRegistry::RegisterMCSubtargetInfo(ThePPC64LETarget,
- createPPCMCSubtargetInfo);
-
- // Register the MC Code Emitter
- TargetRegistry::RegisterMCCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
- TargetRegistry::RegisterMCCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
- TargetRegistry::RegisterMCCodeEmitter(ThePPC64LETarget,
- createPPCMCCodeEmitter);
-
+ for (Target *T : {&ThePPC32Target, &ThePPC64Target, &ThePPC64LETarget}) {
+ // Register the MC asm info.
+ RegisterMCAsmInfoFn C(*T, createPPCMCAsmInfo);
+
+ // Register the MC codegen info.
+ TargetRegistry::RegisterMCCodeGenInfo(*T, createPPCMCCodeGenInfo);
+
+ // Register the MC instruction info.
+ TargetRegistry::RegisterMCInstrInfo(*T, createPPCMCInstrInfo);
+
+ // Register the MC register info.
+ TargetRegistry::RegisterMCRegInfo(*T, createPPCMCRegisterInfo);
+
+ // Register the MC subtarget info.
+ TargetRegistry::RegisterMCSubtargetInfo(*T, createPPCMCSubtargetInfo);
+
+ // Register the MC Code Emitter
+ TargetRegistry::RegisterMCCodeEmitter(*T, createPPCMCCodeEmitter);
+
// Register the asm backend.
- TargetRegistry::RegisterMCAsmBackend(ThePPC32Target, createPPCAsmBackend);
- TargetRegistry::RegisterMCAsmBackend(ThePPC64Target, createPPCAsmBackend);
- TargetRegistry::RegisterMCAsmBackend(ThePPC64LETarget, createPPCAsmBackend);
-
- // Register the object streamer.
- TargetRegistry::RegisterMCObjectStreamer(ThePPC32Target, createMCStreamer);
- TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
- TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
-
- // Register the asm streamer.
- TargetRegistry::RegisterAsmStreamer(ThePPC32Target, createMCAsmStreamer);
- TargetRegistry::RegisterAsmStreamer(ThePPC64Target, createMCAsmStreamer);
- TargetRegistry::RegisterAsmStreamer(ThePPC64LETarget, createMCAsmStreamer);
-
- // Register the MCInstPrinter.
- TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
- TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
- TargetRegistry::RegisterMCInstPrinter(ThePPC64LETarget,
- createPPCMCInstPrinter);
+ TargetRegistry::RegisterMCAsmBackend(*T, createPPCAsmBackend);
+
+ // Register the object target streamer.
+ TargetRegistry::RegisterObjectTargetStreamer(*T,
+ createObjectTargetStreamer);
+
+ // Register the asm target streamer.
+ TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
+
+ // Register the MCInstPrinter.
+ TargetRegistry::RegisterMCInstPrinter(*T, createPPCMCInstPrinter);
+ }
}
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