diff options
Diffstat (limited to 'gnu/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp')
| -rw-r--r-- | gnu/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/gnu/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp b/gnu/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp deleted file mode 100644 index a3caf9a7a5e..00000000000 --- a/gnu/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp +++ /dev/null @@ -1,445 +0,0 @@ -//===-- PPCELFObjectWriter.cpp - PPC ELF Writer ---------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "MCTargetDesc/PPCFixupKinds.h" -#include "MCTargetDesc/PPCMCExpr.h" -#include "MCTargetDesc/PPCMCTargetDesc.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/MC/MCELFObjectWriter.h" -#include "llvm/MC/MCExpr.h" -#include "llvm/MC/MCObjectWriter.h" -#include "llvm/MC/MCSymbolELF.h" -#include "llvm/MC/MCValue.h" -#include "llvm/Support/ErrorHandling.h" - -using namespace llvm; - -namespace { - class PPCELFObjectWriter : public MCELFObjectTargetWriter { - public: - PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI); - - protected: - unsigned getRelocType(MCContext &Ctx, const MCValue &Target, - const MCFixup &Fixup, bool IsPCRel) const override; - - bool needsRelocateWithSymbol(const MCSymbol &Sym, - unsigned Type) const override; - }; -} - -PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI) - : MCELFObjectTargetWriter(Is64Bit, OSABI, - Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC, - /*HasRelocationAddend*/ true) {} - -static MCSymbolRefExpr::VariantKind getAccessVariant(const MCValue &Target, - const MCFixup &Fixup) { - const MCExpr *Expr = Fixup.getValue(); - - if (Expr->getKind() != MCExpr::Target) - return Target.getAccessVariant(); - - switch (cast<PPCMCExpr>(Expr)->getKind()) { - case PPCMCExpr::VK_PPC_None: - return MCSymbolRefExpr::VK_None; - case PPCMCExpr::VK_PPC_LO: - return MCSymbolRefExpr::VK_PPC_LO; - case PPCMCExpr::VK_PPC_HI: - return MCSymbolRefExpr::VK_PPC_HI; - case PPCMCExpr::VK_PPC_HA: - return MCSymbolRefExpr::VK_PPC_HA; - case PPCMCExpr::VK_PPC_HIGH: - return MCSymbolRefExpr::VK_PPC_HIGH; - case PPCMCExpr::VK_PPC_HIGHA: - return MCSymbolRefExpr::VK_PPC_HIGHA; - case PPCMCExpr::VK_PPC_HIGHERA: - return MCSymbolRefExpr::VK_PPC_HIGHERA; - case PPCMCExpr::VK_PPC_HIGHER: - return MCSymbolRefExpr::VK_PPC_HIGHER; - case PPCMCExpr::VK_PPC_HIGHEST: - return MCSymbolRefExpr::VK_PPC_HIGHEST; - case PPCMCExpr::VK_PPC_HIGHESTA: - return MCSymbolRefExpr::VK_PPC_HIGHESTA; - } - llvm_unreachable("unknown PPCMCExpr kind"); -} - -unsigned PPCELFObjectWriter::getRelocType(MCContext &Ctx, const MCValue &Target, - const MCFixup &Fixup, - bool IsPCRel) const { - MCSymbolRefExpr::VariantKind Modifier = getAccessVariant(Target, Fixup); - - // determine the type of the relocation - unsigned Type; - if (IsPCRel) { - switch ((unsigned)Fixup.getKind()) { - default: - llvm_unreachable("Unimplemented"); - case PPC::fixup_ppc_br24: - case PPC::fixup_ppc_br24abs: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_None: - Type = ELF::R_PPC_REL24; - break; - case MCSymbolRefExpr::VK_PLT: - Type = ELF::R_PPC_PLTREL24; - break; - case MCSymbolRefExpr::VK_PPC_LOCAL: - Type = ELF::R_PPC_LOCAL24PC; - break; - } - break; - case PPC::fixup_ppc_brcond14: - case PPC::fixup_ppc_brcond14abs: - Type = ELF::R_PPC_REL14; - break; - case PPC::fixup_ppc_half16: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_None: - Type = ELF::R_PPC_REL16; - break; - case MCSymbolRefExpr::VK_PPC_LO: - Type = ELF::R_PPC_REL16_LO; - break; - case MCSymbolRefExpr::VK_PPC_HI: - Type = ELF::R_PPC_REL16_HI; - break; - case MCSymbolRefExpr::VK_PPC_HA: - Type = ELF::R_PPC_REL16_HA; - break; - } - break; - case PPC::fixup_ppc_half16ds: - Target.print(errs()); - errs() << '\n'; - report_fatal_error("Invalid PC-relative half16ds relocation"); - case FK_Data_4: - case FK_PCRel_4: - Type = ELF::R_PPC_REL32; - break; - case FK_Data_8: - case FK_PCRel_8: - Type = ELF::R_PPC64_REL64; - break; - } - } else { - switch ((unsigned)Fixup.getKind()) { - default: llvm_unreachable("invalid fixup kind!"); - case PPC::fixup_ppc_br24abs: - Type = ELF::R_PPC_ADDR24; - break; - case PPC::fixup_ppc_brcond14abs: - Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_ - break; - case PPC::fixup_ppc_half16: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_None: - Type = ELF::R_PPC_ADDR16; - break; - case MCSymbolRefExpr::VK_PPC_LO: - Type = ELF::R_PPC_ADDR16_LO; - break; - case MCSymbolRefExpr::VK_PPC_HI: - Type = ELF::R_PPC_ADDR16_HI; - break; - case MCSymbolRefExpr::VK_PPC_HA: - Type = ELF::R_PPC_ADDR16_HA; - break; - case MCSymbolRefExpr::VK_PPC_HIGH: - Type = ELF::R_PPC64_ADDR16_HIGH; - break; - case MCSymbolRefExpr::VK_PPC_HIGHA: - Type = ELF::R_PPC64_ADDR16_HIGHA; - break; - case MCSymbolRefExpr::VK_PPC_HIGHER: - Type = ELF::R_PPC64_ADDR16_HIGHER; - break; - case MCSymbolRefExpr::VK_PPC_HIGHERA: - Type = ELF::R_PPC64_ADDR16_HIGHERA; - break; - case MCSymbolRefExpr::VK_PPC_HIGHEST: - Type = ELF::R_PPC64_ADDR16_HIGHEST; - break; - case MCSymbolRefExpr::VK_PPC_HIGHESTA: - Type = ELF::R_PPC64_ADDR16_HIGHESTA; - break; - case MCSymbolRefExpr::VK_GOT: - Type = ELF::R_PPC_GOT16; - break; - case MCSymbolRefExpr::VK_PPC_GOT_LO: - Type = ELF::R_PPC_GOT16_LO; - break; - case MCSymbolRefExpr::VK_PPC_GOT_HI: - Type = ELF::R_PPC_GOT16_HI; - break; - case MCSymbolRefExpr::VK_PPC_GOT_HA: - Type = ELF::R_PPC_GOT16_HA; - break; - case MCSymbolRefExpr::VK_PPC_TOC: - Type = ELF::R_PPC64_TOC16; - break; - case MCSymbolRefExpr::VK_PPC_TOC_LO: - Type = ELF::R_PPC64_TOC16_LO; - break; - case MCSymbolRefExpr::VK_PPC_TOC_HI: - Type = ELF::R_PPC64_TOC16_HI; - break; - case MCSymbolRefExpr::VK_PPC_TOC_HA: - Type = ELF::R_PPC64_TOC16_HA; - break; - case MCSymbolRefExpr::VK_TPREL: - Type = ELF::R_PPC_TPREL16; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_LO: - Type = ELF::R_PPC_TPREL16_LO; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HI: - Type = ELF::R_PPC_TPREL16_HI; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HA: - Type = ELF::R_PPC_TPREL16_HA; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGH: - Type = ELF::R_PPC64_TPREL16_HIGH; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGHA: - Type = ELF::R_PPC64_TPREL16_HIGHA; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER: - Type = ELF::R_PPC64_TPREL16_HIGHER; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA: - Type = ELF::R_PPC64_TPREL16_HIGHERA; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST: - Type = ELF::R_PPC64_TPREL16_HIGHEST; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA: - Type = ELF::R_PPC64_TPREL16_HIGHESTA; - break; - case MCSymbolRefExpr::VK_DTPREL: - Type = ELF::R_PPC64_DTPREL16; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_LO: - Type = ELF::R_PPC64_DTPREL16_LO; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HI: - Type = ELF::R_PPC64_DTPREL16_HI; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HA: - Type = ELF::R_PPC64_DTPREL16_HA; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGH: - Type = ELF::R_PPC64_DTPREL16_HIGH; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHA: - Type = ELF::R_PPC64_DTPREL16_HIGHA; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER: - Type = ELF::R_PPC64_DTPREL16_HIGHER; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA: - Type = ELF::R_PPC64_DTPREL16_HIGHERA; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST: - Type = ELF::R_PPC64_DTPREL16_HIGHEST; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA: - Type = ELF::R_PPC64_DTPREL16_HIGHESTA; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSGD: - if (is64Bit()) - Type = ELF::R_PPC64_GOT_TLSGD16; - else - Type = ELF::R_PPC_GOT_TLSGD16; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO: - Type = ELF::R_PPC64_GOT_TLSGD16_LO; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI: - Type = ELF::R_PPC64_GOT_TLSGD16_HI; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA: - Type = ELF::R_PPC64_GOT_TLSGD16_HA; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSLD: - if (is64Bit()) - Type = ELF::R_PPC64_GOT_TLSLD16; - else - Type = ELF::R_PPC_GOT_TLSLD16; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO: - Type = ELF::R_PPC64_GOT_TLSLD16_LO; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI: - Type = ELF::R_PPC64_GOT_TLSLD16_HI; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA: - Type = ELF::R_PPC64_GOT_TLSLD16_HA; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL: - /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets - are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */ - Type = ELF::R_PPC64_GOT_TPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO: - /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets - are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */ - Type = ELF::R_PPC64_GOT_TPREL16_LO_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI: - Type = ELF::R_PPC64_GOT_TPREL16_HI; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL: - /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets - are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */ - Type = ELF::R_PPC64_GOT_DTPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO: - /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets - are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */ - Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA: - Type = ELF::R_PPC64_GOT_TPREL16_HA; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI: - Type = ELF::R_PPC64_GOT_DTPREL16_HI; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA: - Type = ELF::R_PPC64_GOT_DTPREL16_HA; - break; - } - break; - case PPC::fixup_ppc_half16ds: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_None: - Type = ELF::R_PPC64_ADDR16_DS; - break; - case MCSymbolRefExpr::VK_PPC_LO: - Type = ELF::R_PPC64_ADDR16_LO_DS; - break; - case MCSymbolRefExpr::VK_GOT: - Type = ELF::R_PPC64_GOT16_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_LO: - Type = ELF::R_PPC64_GOT16_LO_DS; - break; - case MCSymbolRefExpr::VK_PPC_TOC: - Type = ELF::R_PPC64_TOC16_DS; - break; - case MCSymbolRefExpr::VK_PPC_TOC_LO: - Type = ELF::R_PPC64_TOC16_LO_DS; - break; - case MCSymbolRefExpr::VK_TPREL: - Type = ELF::R_PPC64_TPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_TPREL_LO: - Type = ELF::R_PPC64_TPREL16_LO_DS; - break; - case MCSymbolRefExpr::VK_DTPREL: - Type = ELF::R_PPC64_DTPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_DTPREL_LO: - Type = ELF::R_PPC64_DTPREL16_LO_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL: - Type = ELF::R_PPC64_GOT_TPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO: - Type = ELF::R_PPC64_GOT_TPREL16_LO_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL: - Type = ELF::R_PPC64_GOT_DTPREL16_DS; - break; - case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO: - Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS; - break; - } - break; - case PPC::fixup_ppc_nofixup: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_PPC_TLSGD: - if (is64Bit()) - Type = ELF::R_PPC64_TLSGD; - else - Type = ELF::R_PPC_TLSGD; - break; - case MCSymbolRefExpr::VK_PPC_TLSLD: - if (is64Bit()) - Type = ELF::R_PPC64_TLSLD; - else - Type = ELF::R_PPC_TLSLD; - break; - case MCSymbolRefExpr::VK_PPC_TLS: - if (is64Bit()) - Type = ELF::R_PPC64_TLS; - else - Type = ELF::R_PPC_TLS; - break; - } - break; - case FK_Data_8: - switch (Modifier) { - default: llvm_unreachable("Unsupported Modifier"); - case MCSymbolRefExpr::VK_PPC_TOCBASE: - Type = ELF::R_PPC64_TOC; - break; - case MCSymbolRefExpr::VK_None: - Type = ELF::R_PPC64_ADDR64; - break; - case MCSymbolRefExpr::VK_PPC_DTPMOD: - Type = ELF::R_PPC64_DTPMOD64; - break; - case MCSymbolRefExpr::VK_TPREL: - Type = ELF::R_PPC64_TPREL64; - break; - case MCSymbolRefExpr::VK_DTPREL: - Type = ELF::R_PPC64_DTPREL64; - break; - } - break; - case FK_Data_4: - Type = ELF::R_PPC_ADDR32; - break; - case FK_Data_2: - Type = ELF::R_PPC_ADDR16; - break; - } - } - return Type; -} - -bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym, - unsigned Type) const { - switch (Type) { - default: - return false; - - case ELF::R_PPC_REL24: - // If the target symbol has a local entry point, we must keep the - // target symbol to preserve that information for the linker. - // 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 = cast<MCSymbolELF>(Sym).getOther() << 2; - return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0; - } -} - -std::unique_ptr<MCObjectTargetWriter> -llvm::createPPCELFObjectWriter(bool Is64Bit, uint8_t OSABI) { - return llvm::make_unique<PPCELFObjectWriter>(Is64Bit, OSABI); -} |