#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCValue.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Target/TargetLowering.h"
return TM.getSymbol(GV, Mang);
}
-void
-X86LinuxTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) {
- TargetLoweringObjectFileELF::Initialize(Ctx, TM);
- InitializeELF(TM.Options.UseInitArray);
+const MCExpr *X86_64MachoTargetObjectFile::getIndirectSymViaGOTPCRel(
+ const MCSymbol *Sym, const MCValue &MV, int64_t Offset,
+ MachineModuleInfo *MMI, MCStreamer &Streamer) const {
+ // On Darwin/X86-64, we need to use foo@GOTPCREL+4 to access the got entry
+ // from a data section. In case there's an additional offset, then use
+ // foo@GOTPCREL+4+<offset>.
+ unsigned FinalOff = Offset+MV.getConstant()+4;
+ const MCExpr *Res =
+ MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext());
+ const MCExpr *Off = MCConstantExpr::Create(FinalOff, getContext());
+ return MCBinaryExpr::CreateAdd(Res, Off, getContext());
}
-const MCExpr *
-X86LinuxTargetObjectFile::getDebugThreadLocalSymbol(
+const MCExpr *X86ELFTargetObjectFile::getDebugThreadLocalSymbol(
const MCSymbol *Sym) const {
return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext());
}
+void
+X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx,
+ const TargetMachine &TM) {
+ TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+ InitializeELF(TM.Options.UseInitArray);
+}
+
const MCExpr *X86WindowsTargetObjectFile::getExecutableRelativeSymbol(
const ConstantExpr *CE, Mangler &Mang, const TargetMachine &TM) const {
// We are looking for the difference of two symbols, need a subtraction
SubRHS->getPointerAddressSpace() != 0)
return nullptr;
- // Both ptrtoint instructions must wrap global variables:
+ // Both ptrtoint instructions must wrap global objects:
// - Only global variables are eligible for image relative relocations.
- // - The subtrahend refers to the special symbol __ImageBase, a global.
- const GlobalVariable *GVLHS =
- dyn_cast<GlobalVariable>(SubLHS->getPointerOperand());
- const GlobalVariable *GVRHS =
- dyn_cast<GlobalVariable>(SubRHS->getPointerOperand());
- if (!GVLHS || !GVRHS)
+ // - The subtrahend refers to the special symbol __ImageBase, a GlobalVariable.
+ const auto *GOLHS = dyn_cast<GlobalObject>(SubLHS->getPointerOperand());
+ const auto *GVRHS = dyn_cast<GlobalVariable>(SubRHS->getPointerOperand());
+ if (!GOLHS || !GVRHS)
return nullptr;
// We expect __ImageBase to be a global variable without a section, externally
return nullptr;
// An image-relative, thread-local, symbol makes no sense.
- if (GVLHS->isThreadLocal())
+ if (GOLHS->isThreadLocal())
return nullptr;
- return MCSymbolRefExpr::Create(TM.getSymbol(GVLHS, Mang),
+ return MCSymbolRefExpr::Create(TM.getSymbol(GOLHS, Mang),
MCSymbolRefExpr::VK_COFF_IMGREL32,
getContext());
}
-static std::string APIntToHexString(const APInt &AI, unsigned Width) {
+static std::string APIntToHexString(const APInt &AI) {
+ unsigned Width = (AI.getBitWidth() / 8) * 2;
std::string HexString = utohexstr(AI.getLimitedValue(), /*LowerCase=*/true);
unsigned Size = HexString.size();
assert(Width >= Size && "hex string is too large!");
static std::string scalarConstantToHexString(const Constant *C) {
Type *Ty = C->getType();
- if (Ty->isFloatTy()) {
- const auto *CFP = cast<ConstantFP>(C);
- return APIntToHexString(CFP->getValueAPF().bitcastToAPInt(), /*Width=*/8);
- } else if (Ty->isDoubleTy()) {
+ APInt AI;
+ if (isa<UndefValue>(C)) {
+ AI = APInt(Ty->getPrimitiveSizeInBits(), /*val=*/0);
+ } else if (Ty->isFloatTy() || Ty->isDoubleTy()) {
const auto *CFP = cast<ConstantFP>(C);
- return APIntToHexString(CFP->getValueAPF().bitcastToAPInt(), /*Width=*/16);
- } else if (const auto *ITy = dyn_cast<IntegerType>(Ty)) {
+ AI = CFP->getValueAPF().bitcastToAPInt();
+ } else if (Ty->isIntegerTy()) {
const auto *CI = cast<ConstantInt>(C);
- return APIntToHexString(CI->getValue(), (ITy->getBitWidth() / 8) * 2);
+ AI = CI->getValue();
+ } else {
+ llvm_unreachable("unexpected constant pool element type!");
}
- llvm_unreachable("unexpected constant pool element type!");
+ return APIntToHexString(AI);
}
-const MCSection *
+MCSection *
X86WindowsTargetObjectFile::getSectionForConstant(SectionKind Kind,
const Constant *C) const {
if (Kind.isReadOnly()) {
} else if (const auto *VTy = dyn_cast<VectorType>(Ty)) {
uint64_t NumBits = VTy->getBitWidth();
if (NumBits == 128 || NumBits == 256) {
- const auto *CDV = cast<ConstantDataVector>(C);
COMDATSymName = NumBits == 128 ? "__xmm@" : "__ymm@";
- for (int I = CDV->getNumElements() - 1, E = -1; I != E; --I)
+ for (int I = VTy->getNumElements() - 1, E = -1; I != E; --I)
COMDATSymName +=
- scalarConstantToHexString(CDV->getElementAsConstant(I));
+ scalarConstantToHexString(C->getAggregateElement(I));
}
}
if (!COMDATSymName.empty()) {