//===-- SparcMCExpr.cpp - Sparc specific MC expression classes --------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file contains the implementation of the assembly expression modifiers // accepted by the Sparc architecture (e.g. "%hi", "%lo", ...). // //===----------------------------------------------------------------------===// #define DEBUG_TYPE "sparcmcexpr" #include "SparcMCExpr.h" #include "llvm/MC/MCAssembler.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCELF.h" #include "llvm/MC/MCSymbol.h" #include "llvm/Object/ELF.h" using namespace llvm; const SparcMCExpr* SparcMCExpr::Create(VariantKind Kind, const MCExpr *Expr, MCContext &Ctx) { return new (Ctx) SparcMCExpr(Kind, Expr); } void SparcMCExpr::PrintImpl(raw_ostream &OS) const { bool closeParen = printVariantKind(OS, Kind); const MCExpr *Expr = getSubExpr(); Expr->print(OS); if (closeParen) OS << ')'; } bool SparcMCExpr::printVariantKind(raw_ostream &OS, VariantKind Kind) { bool closeParen = true; switch (Kind) { case VK_Sparc_None: closeParen = false; break; case VK_Sparc_LO: OS << "%lo("; break; case VK_Sparc_HI: OS << "%hi("; break; case VK_Sparc_H44: OS << "%h44("; break; case VK_Sparc_M44: OS << "%m44("; break; case VK_Sparc_L44: OS << "%l44("; break; case VK_Sparc_HH: OS << "%hh("; break; case VK_Sparc_HM: OS << "%hm("; break; // FIXME: use %pc22/%pc10, if system assembler supports them. case VK_Sparc_PC22: OS << "%hi("; break; case VK_Sparc_PC10: OS << "%lo("; break; // FIXME: use %got22/%got10, if system assembler supports them. case VK_Sparc_GOT22: OS << "%hi("; break; case VK_Sparc_GOT10: OS << "%lo("; break; case VK_Sparc_WPLT30: closeParen = false; break; case VK_Sparc_R_DISP32: OS << "%r_disp32("; break; case VK_Sparc_TLS_GD_HI22: OS << "%tgd_hi22("; break; case VK_Sparc_TLS_GD_LO10: OS << "%tgd_lo10("; break; case VK_Sparc_TLS_GD_ADD: OS << "%tgd_add("; break; case VK_Sparc_TLS_GD_CALL: OS << "%tgd_call("; break; case VK_Sparc_TLS_LDM_HI22: OS << "%tldm_hi22("; break; case VK_Sparc_TLS_LDM_LO10: OS << "%tldm_lo10("; break; case VK_Sparc_TLS_LDM_ADD: OS << "%tldm_add("; break; case VK_Sparc_TLS_LDM_CALL: OS << "%tldm_call("; break; case VK_Sparc_TLS_LDO_HIX22: OS << "%tldo_hix22("; break; case VK_Sparc_TLS_LDO_LOX10: OS << "%tldo_lox10("; break; case VK_Sparc_TLS_LDO_ADD: OS << "%tldo_add("; break; case VK_Sparc_TLS_IE_HI22: OS << "%tie_hi22("; break; case VK_Sparc_TLS_IE_LO10: OS << "%tie_lo10("; break; case VK_Sparc_TLS_IE_LD: OS << "%tie_ld("; break; case VK_Sparc_TLS_IE_LDX: OS << "%tie_ldx("; break; case VK_Sparc_TLS_IE_ADD: OS << "%tie_add("; break; case VK_Sparc_TLS_LE_HIX22: OS << "%tle_hix22("; break; case VK_Sparc_TLS_LE_LOX10: OS << "%tle_lox10("; break; } return closeParen; } SparcMCExpr::VariantKind SparcMCExpr::parseVariantKind(StringRef name) { return StringSwitch(name) .Case("lo", VK_Sparc_LO) .Case("hi", VK_Sparc_HI) .Case("h44", VK_Sparc_H44) .Case("m44", VK_Sparc_M44) .Case("l44", VK_Sparc_L44) .Case("hh", VK_Sparc_HH) .Case("hm", VK_Sparc_HM) .Case("pc22", VK_Sparc_PC22) .Case("pc10", VK_Sparc_PC10) .Case("got22", VK_Sparc_GOT22) .Case("got10", VK_Sparc_GOT10) .Case("r_disp32", VK_Sparc_R_DISP32) .Case("tgd_hi22", VK_Sparc_TLS_GD_HI22) .Case("tgd_lo10", VK_Sparc_TLS_GD_LO10) .Case("tgd_add", VK_Sparc_TLS_GD_ADD) .Case("tgd_call", VK_Sparc_TLS_GD_CALL) .Case("tldm_hi22", VK_Sparc_TLS_LDM_HI22) .Case("tldm_lo10", VK_Sparc_TLS_LDM_LO10) .Case("tldm_add", VK_Sparc_TLS_LDM_ADD) .Case("tldm_call", VK_Sparc_TLS_LDM_CALL) .Case("tldo_hix22", VK_Sparc_TLS_LDO_HIX22) .Case("tldo_lox10", VK_Sparc_TLS_LDO_LOX10) .Case("tldo_add", VK_Sparc_TLS_LDO_ADD) .Case("tie_hi22", VK_Sparc_TLS_IE_HI22) .Case("tie_lo10", VK_Sparc_TLS_IE_LO10) .Case("tie_ld", VK_Sparc_TLS_IE_LD) .Case("tie_ldx", VK_Sparc_TLS_IE_LDX) .Case("tie_add", VK_Sparc_TLS_IE_ADD) .Case("tle_hix22", VK_Sparc_TLS_LE_HIX22) .Case("tle_lox10", VK_Sparc_TLS_LE_LOX10) .Default(VK_Sparc_None); } Sparc::Fixups SparcMCExpr::getFixupKind(SparcMCExpr::VariantKind Kind) { switch (Kind) { default: assert(0 && "Unhandled SparcMCExpr::VariantKind"); case VK_Sparc_LO: return Sparc::fixup_sparc_lo10; case VK_Sparc_HI: return Sparc::fixup_sparc_hi22; case VK_Sparc_H44: return Sparc::fixup_sparc_h44; case VK_Sparc_M44: return Sparc::fixup_sparc_m44; case VK_Sparc_L44: return Sparc::fixup_sparc_l44; case VK_Sparc_HH: return Sparc::fixup_sparc_hh; case VK_Sparc_HM: return Sparc::fixup_sparc_hm; case VK_Sparc_PC22: return Sparc::fixup_sparc_pc22; case VK_Sparc_PC10: return Sparc::fixup_sparc_pc10; case VK_Sparc_GOT22: return Sparc::fixup_sparc_got22; case VK_Sparc_GOT10: return Sparc::fixup_sparc_got10; case VK_Sparc_WPLT30: return Sparc::fixup_sparc_wplt30; case VK_Sparc_TLS_GD_HI22: return Sparc::fixup_sparc_tls_gd_hi22; case VK_Sparc_TLS_GD_LO10: return Sparc::fixup_sparc_tls_gd_lo10; case VK_Sparc_TLS_GD_ADD: return Sparc::fixup_sparc_tls_gd_add; case VK_Sparc_TLS_GD_CALL: return Sparc::fixup_sparc_tls_gd_call; case VK_Sparc_TLS_LDM_HI22: return Sparc::fixup_sparc_tls_ldm_hi22; case VK_Sparc_TLS_LDM_LO10: return Sparc::fixup_sparc_tls_ldm_lo10; case VK_Sparc_TLS_LDM_ADD: return Sparc::fixup_sparc_tls_ldm_add; case VK_Sparc_TLS_LDM_CALL: return Sparc::fixup_sparc_tls_ldm_call; case VK_Sparc_TLS_LDO_HIX22: return Sparc::fixup_sparc_tls_ldo_hix22; case VK_Sparc_TLS_LDO_LOX10: return Sparc::fixup_sparc_tls_ldo_lox10; case VK_Sparc_TLS_LDO_ADD: return Sparc::fixup_sparc_tls_ldo_add; case VK_Sparc_TLS_IE_HI22: return Sparc::fixup_sparc_tls_ie_hi22; case VK_Sparc_TLS_IE_LO10: return Sparc::fixup_sparc_tls_ie_lo10; case VK_Sparc_TLS_IE_LD: return Sparc::fixup_sparc_tls_ie_ld; case VK_Sparc_TLS_IE_LDX: return Sparc::fixup_sparc_tls_ie_ldx; case VK_Sparc_TLS_IE_ADD: return Sparc::fixup_sparc_tls_ie_add; case VK_Sparc_TLS_LE_HIX22: return Sparc::fixup_sparc_tls_le_hix22; case VK_Sparc_TLS_LE_LOX10: return Sparc::fixup_sparc_tls_le_lox10; } } bool SparcMCExpr::EvaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout) const { return getSubExpr()->EvaluateAsRelocatable(Res, Layout); } static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) { switch (Expr->getKind()) { case MCExpr::Target: llvm_unreachable("Can't handle nested target expr!"); break; case MCExpr::Constant: break; case MCExpr::Binary: { const MCBinaryExpr *BE = cast(Expr); fixELFSymbolsInTLSFixupsImpl(BE->getLHS(), Asm); fixELFSymbolsInTLSFixupsImpl(BE->getRHS(), Asm); break; } case MCExpr::SymbolRef: { const MCSymbolRefExpr &SymRef = *cast(Expr); MCSymbolData &SD = Asm.getOrCreateSymbolData(SymRef.getSymbol()); MCELF::SetType(SD, ELF::STT_TLS); break; } case MCExpr::Unary: fixELFSymbolsInTLSFixupsImpl(cast(Expr)->getSubExpr(), Asm); break; } } void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const { switch(getKind()) { default: return; case VK_Sparc_TLS_GD_HI22: case VK_Sparc_TLS_GD_LO10: case VK_Sparc_TLS_GD_ADD: case VK_Sparc_TLS_GD_CALL: case VK_Sparc_TLS_LDM_HI22: case VK_Sparc_TLS_LDM_LO10: case VK_Sparc_TLS_LDM_ADD: case VK_Sparc_TLS_LDM_CALL: case VK_Sparc_TLS_LDO_HIX22: case VK_Sparc_TLS_LDO_LOX10: case VK_Sparc_TLS_LDO_ADD: case VK_Sparc_TLS_IE_HI22: case VK_Sparc_TLS_IE_LO10: case VK_Sparc_TLS_IE_LD: case VK_Sparc_TLS_IE_LDX: case VK_Sparc_TLS_IE_ADD: case VK_Sparc_TLS_LE_HIX22: case VK_Sparc_TLS_LE_LOX10: break; } fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm); } // FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps // that method should be made public? // FIXME: really do above: now that at least three other 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(Value); AddValueSymbolsImpl(BE->getLHS(), Asm); AddValueSymbolsImpl(BE->getRHS(), Asm); break; } case MCExpr::SymbolRef: Asm->getOrCreateSymbolData(cast(Value)->getSymbol()); break; case MCExpr::Unary: AddValueSymbolsImpl(cast(Value)->getSubExpr(), Asm); break; } } void SparcMCExpr::AddValueSymbols(MCAssembler *Asm) const { AddValueSymbolsImpl(getSubExpr(), Asm); }