#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/MCSymbolELF.h"
+#include "llvm/MC/MCValue.h"
#include "llvm/Object/ELF.h"
+#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
-#define DEBUG_TYPE "aarch64mcexpr"
+#define DEBUG_TYPE "aarch64symbolrefexpr"
-const AArch64MCExpr*
-AArch64MCExpr::Create(VariantKind Kind, const MCExpr *Expr,
- MCContext &Ctx) {
- return new (Ctx) AArch64MCExpr(Kind, Expr);
+const AArch64MCExpr *AArch64MCExpr::create(const MCExpr *Expr, VariantKind Kind,
+ MCContext &Ctx) {
+ return new (Ctx) AArch64MCExpr(Expr, Kind);
}
-void AArch64MCExpr::PrintImpl(raw_ostream &OS) const {
- switch (Kind) {
- default: llvm_unreachable("Invalid kind!");
- case VK_AARCH64_GOT: OS << ":got:"; break;
- case VK_AARCH64_GOT_LO12: OS << ":got_lo12:"; break;
- case VK_AARCH64_LO12: OS << ":lo12:"; break;
- case VK_AARCH64_ABS_G0: OS << ":abs_g0:"; break;
- case VK_AARCH64_ABS_G0_NC: OS << ":abs_g0_nc:"; break;
- case VK_AARCH64_ABS_G1: OS << ":abs_g1:"; break;
- case VK_AARCH64_ABS_G1_NC: OS << ":abs_g1_nc:"; break;
- case VK_AARCH64_ABS_G2: OS << ":abs_g2:"; break;
- case VK_AARCH64_ABS_G2_NC: OS << ":abs_g2_nc:"; break;
- case VK_AARCH64_ABS_G3: OS << ":abs_g3:"; break;
- case VK_AARCH64_SABS_G0: OS << ":abs_g0_s:"; break;
- case VK_AARCH64_SABS_G1: OS << ":abs_g1_s:"; break;
- case VK_AARCH64_SABS_G2: OS << ":abs_g2_s:"; break;
- case VK_AARCH64_DTPREL_G2: OS << ":dtprel_g2:"; break;
- case VK_AARCH64_DTPREL_G1: OS << ":dtprel_g1:"; break;
- case VK_AARCH64_DTPREL_G1_NC: OS << ":dtprel_g1_nc:"; break;
- case VK_AARCH64_DTPREL_G0: OS << ":dtprel_g0:"; break;
- case VK_AARCH64_DTPREL_G0_NC: OS << ":dtprel_g0_nc:"; break;
- case VK_AARCH64_DTPREL_HI12: OS << ":dtprel_hi12:"; break;
- case VK_AARCH64_DTPREL_LO12: OS << ":dtprel_lo12:"; break;
- case VK_AARCH64_DTPREL_LO12_NC: OS << ":dtprel_lo12_nc:"; break;
- case VK_AARCH64_GOTTPREL_G1: OS << ":gottprel_g1:"; break;
- case VK_AARCH64_GOTTPREL_G0_NC: OS << ":gottprel_g0_nc:"; break;
- case VK_AARCH64_GOTTPREL: OS << ":gottprel:"; break;
- case VK_AARCH64_GOTTPREL_LO12: OS << ":gottprel_lo12:"; break;
- case VK_AARCH64_TPREL_G2: OS << ":tprel_g2:"; break;
- case VK_AARCH64_TPREL_G1: OS << ":tprel_g1:"; break;
- case VK_AARCH64_TPREL_G1_NC: OS << ":tprel_g1_nc:"; break;
- case VK_AARCH64_TPREL_G0: OS << ":tprel_g0:"; break;
- case VK_AARCH64_TPREL_G0_NC: OS << ":tprel_g0_nc:"; break;
- case VK_AARCH64_TPREL_HI12: OS << ":tprel_hi12:"; break;
- case VK_AARCH64_TPREL_LO12: OS << ":tprel_lo12:"; break;
- case VK_AARCH64_TPREL_LO12_NC: OS << ":tprel_lo12_nc:"; break;
- case VK_AARCH64_TLSDESC: OS << ":tlsdesc:"; break;
- case VK_AARCH64_TLSDESC_LO12: OS << ":tlsdesc_lo12:"; break;
-
+StringRef AArch64MCExpr::getVariantKindName() const {
+ switch (static_cast<uint32_t>(getKind())) {
+ case VK_CALL: return "";
+ case VK_LO12: return ":lo12:";
+ case VK_ABS_G3: return ":abs_g3:";
+ case VK_ABS_G2: return ":abs_g2:";
+ case VK_ABS_G2_S: return ":abs_g2_s:";
+ case VK_ABS_G2_NC: return ":abs_g2_nc:";
+ case VK_ABS_G1: return ":abs_g1:";
+ case VK_ABS_G1_S: return ":abs_g1_s:";
+ case VK_ABS_G1_NC: return ":abs_g1_nc:";
+ case VK_ABS_G0: return ":abs_g0:";
+ case VK_ABS_G0_S: return ":abs_g0_s:";
+ case VK_ABS_G0_NC: return ":abs_g0_nc:";
+ case VK_DTPREL_G2: return ":dtprel_g2:";
+ case VK_DTPREL_G1: return ":dtprel_g1:";
+ case VK_DTPREL_G1_NC: return ":dtprel_g1_nc:";
+ case VK_DTPREL_G0: return ":dtprel_g0:";
+ case VK_DTPREL_G0_NC: return ":dtprel_g0_nc:";
+ case VK_DTPREL_HI12: return ":dtprel_hi12:";
+ case VK_DTPREL_LO12: return ":dtprel_lo12:";
+ case VK_DTPREL_LO12_NC: return ":dtprel_lo12_nc:";
+ case VK_TPREL_G2: return ":tprel_g2:";
+ case VK_TPREL_G1: return ":tprel_g1:";
+ case VK_TPREL_G1_NC: return ":tprel_g1_nc:";
+ case VK_TPREL_G0: return ":tprel_g0:";
+ case VK_TPREL_G0_NC: return ":tprel_g0_nc:";
+ case VK_TPREL_HI12: return ":tprel_hi12:";
+ case VK_TPREL_LO12: return ":tprel_lo12:";
+ case VK_TPREL_LO12_NC: return ":tprel_lo12_nc:";
+ case VK_TLSDESC_LO12: return ":tlsdesc_lo12:";
+ case VK_ABS_PAGE: return "";
+ case VK_GOT_PAGE: return ":got:";
+ case VK_GOT_LO12: return ":got_lo12:";
+ case VK_GOTTPREL_PAGE: return ":gottprel:";
+ case VK_GOTTPREL_LO12_NC: return ":gottprel_lo12:";
+ case VK_GOTTPREL_G1: return ":gottprel_g1:";
+ case VK_GOTTPREL_G0_NC: return ":gottprel_g0_nc:";
+ case VK_TLSDESC: return "";
+ case VK_TLSDESC_PAGE: return ":tlsdesc:";
+ default:
+ llvm_unreachable("Invalid ELF symbol kind");
}
+}
+
+void AArch64MCExpr::printImpl(raw_ostream &OS) const {
+ if (getKind() != VK_NONE)
+ OS << getVariantKindName();
+ OS << *Expr;
+}
+
+void AArch64MCExpr::visitUsedExpr(MCStreamer &Streamer) const {
+ Streamer.visitUsedExpr(*getSubExpr());
+}
- const MCExpr *Expr = getSubExpr();
- if (Expr->getKind() != MCExpr::SymbolRef)
- OS << '(';
- Expr->print(OS);
- if (Expr->getKind() != MCExpr::SymbolRef)
- OS << ')';
+MCSection *AArch64MCExpr::findAssociatedSection() const {
+ llvm_unreachable("FIXME: what goes here?");
}
-bool
-AArch64MCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
- const MCAsmLayout *Layout) const {
- return getSubExpr()->EvaluateAsRelocatable(Res, Layout);
+bool AArch64MCExpr::evaluateAsRelocatableImpl(MCValue &Res,
+ const MCAsmLayout *Layout,
+ const MCFixup *Fixup) const {
+ if (!getSubExpr()->evaluateAsRelocatable(Res, Layout, Fixup))
+ return false;
+
+ Res =
+ MCValue::get(Res.getSymA(), Res.getSymB(), Res.getConstant(), getKind());
+
+ return true;
}
static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) {
// 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);
- MCSymbolData &SD = Asm.getOrCreateSymbolData(SymRef.getSymbol());
- MCELF::SetType(SD, ELF::STT_TLS);
+ cast<MCSymbolELF>(SymRef.getSymbol()).setType(ELF::STT_TLS);
break;
}
}
void AArch64MCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
- switch (getKind()) {
+ switch (getSymbolLoc(Kind)) {
default:
return;
- case VK_AARCH64_DTPREL_G2:
- case VK_AARCH64_DTPREL_G1:
- case VK_AARCH64_DTPREL_G1_NC:
- case VK_AARCH64_DTPREL_G0:
- case VK_AARCH64_DTPREL_G0_NC:
- case VK_AARCH64_DTPREL_HI12:
- case VK_AARCH64_DTPREL_LO12:
- case VK_AARCH64_DTPREL_LO12_NC:
- case VK_AARCH64_GOTTPREL_G1:
- case VK_AARCH64_GOTTPREL_G0_NC:
- case VK_AARCH64_GOTTPREL:
- case VK_AARCH64_GOTTPREL_LO12:
- case VK_AARCH64_TPREL_G2:
- case VK_AARCH64_TPREL_G1:
- case VK_AARCH64_TPREL_G1_NC:
- case VK_AARCH64_TPREL_G0:
- case VK_AARCH64_TPREL_G0_NC:
- case VK_AARCH64_TPREL_HI12:
- case VK_AARCH64_TPREL_LO12:
- case VK_AARCH64_TPREL_LO12_NC:
- case VK_AARCH64_TLSDESC:
- case VK_AARCH64_TLSDESC_LO12:
+ case VK_DTPREL:
+ case VK_GOTTPREL:
+ case VK_TPREL:
+ case VK_TLSDESC:
break;
}
fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm);
}
-
-// FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
-// that method should be made public?
-// FIXME: really do above: now that two backends are using it.
-static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
- switch (Value->getKind()) {
- case MCExpr::Target:
- llvm_unreachable("Can't handle nested target expr!");
- break;
-
- case MCExpr::Constant:
- break;
-
- case MCExpr::Binary: {
- const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
- AddValueSymbolsImpl(BE->getLHS(), Asm);
- AddValueSymbolsImpl(BE->getRHS(), Asm);
- break;
- }
-
- case MCExpr::SymbolRef:
- Asm->getOrCreateSymbolData(cast<MCSymbolRefExpr>(Value)->getSymbol());
- break;
-
- case MCExpr::Unary:
- AddValueSymbolsImpl(cast<MCUnaryExpr>(Value)->getSubExpr(), Asm);
- break;
- }
-}
-
-void AArch64MCExpr::AddValueSymbols(MCAssembler *Asm) const {
- AddValueSymbolsImpl(getSubExpr(), Asm);
-}
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