diff options
Diffstat (limited to 'lib/Target/ARM64/MCTargetDesc/ARM64ELFObjectWriter.cpp')
| -rw-r--r-- | lib/Target/ARM64/MCTargetDesc/ARM64ELFObjectWriter.cpp | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/lib/Target/ARM64/MCTargetDesc/ARM64ELFObjectWriter.cpp b/lib/Target/ARM64/MCTargetDesc/ARM64ELFObjectWriter.cpp deleted file mode 100644 index 1a132a17ff..0000000000 --- a/lib/Target/ARM64/MCTargetDesc/ARM64ELFObjectWriter.cpp +++ /dev/null @@ -1,237 +0,0 @@ -//===-- ARM64ELFObjectWriter.cpp - ARM64 ELF Writer -----------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file handles ELF-specific object emission, converting LLVM's internal -// fixups into the appropriate relocations. -// -//===----------------------------------------------------------------------===// - -#include "MCTargetDesc/ARM64FixupKinds.h" -#include "MCTargetDesc/ARM64MCExpr.h" -#include "MCTargetDesc/ARM64MCTargetDesc.h" -#include "llvm/MC/MCELFObjectWriter.h" -#include "llvm/MC/MCValue.h" -#include "llvm/Support/ErrorHandling.h" - -using namespace llvm; - -namespace { -class ARM64ELFObjectWriter : public MCELFObjectTargetWriter { -public: - ARM64ELFObjectWriter(uint8_t OSABI); - - virtual ~ARM64ELFObjectWriter(); - -protected: - unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup, - bool IsPCRel) const override; - -private: -}; -} - -ARM64ELFObjectWriter::ARM64ELFObjectWriter(uint8_t OSABI) - : MCELFObjectTargetWriter(/*Is64Bit*/ true, OSABI, ELF::EM_AARCH64, - /*HasRelocationAddend*/ true) {} - -ARM64ELFObjectWriter::~ARM64ELFObjectWriter() {} - -unsigned ARM64ELFObjectWriter::GetRelocType(const MCValue &Target, - const MCFixup &Fixup, - bool IsPCRel) const { - ARM64MCExpr::VariantKind RefKind = - static_cast<ARM64MCExpr::VariantKind>(Target.getRefKind()); - ARM64MCExpr::VariantKind SymLoc = ARM64MCExpr::getSymbolLoc(RefKind); - bool IsNC = ARM64MCExpr::isNotChecked(RefKind); - - assert((!Target.getSymA() || - Target.getSymA()->getKind() == MCSymbolRefExpr::VK_None) && - "Should only be expression-level modifiers here"); - - assert((!Target.getSymB() || - Target.getSymB()->getKind() == MCSymbolRefExpr::VK_None) && - "Should only be expression-level modifiers here"); - - if (IsPCRel) { - switch ((unsigned)Fixup.getKind()) { - case FK_Data_2: - return ELF::R_AARCH64_PREL16; - case FK_Data_4: - return ELF::R_AARCH64_PREL32; - case FK_Data_8: - return ELF::R_AARCH64_PREL64; - case ARM64::fixup_arm64_pcrel_adr_imm21: - llvm_unreachable("No ELF relocations supported for ADR at the moment"); - case ARM64::fixup_arm64_pcrel_adrp_imm21: - if (SymLoc == ARM64MCExpr::VK_ABS && !IsNC) - return ELF::R_AARCH64_ADR_PREL_PG_HI21; - if (SymLoc == ARM64MCExpr::VK_GOT && !IsNC) - return ELF::R_AARCH64_ADR_GOT_PAGE; - if (SymLoc == ARM64MCExpr::VK_GOTTPREL && !IsNC) - return ELF::R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21; - if (SymLoc == ARM64MCExpr::VK_TLSDESC && !IsNC) - return ELF::R_AARCH64_TLSDESC_ADR_PAGE; - llvm_unreachable("invalid symbol kind for ADRP relocation"); - case ARM64::fixup_arm64_pcrel_branch26: - return ELF::R_AARCH64_JUMP26; - case ARM64::fixup_arm64_pcrel_call26: - return ELF::R_AARCH64_CALL26; - case ARM64::fixup_arm64_pcrel_imm19: - return ELF::R_AARCH64_TLSIE_LD_GOTTPREL_PREL19; - default: - llvm_unreachable("Unsupported pc-relative fixup kind"); - } - } else { - switch ((unsigned)Fixup.getKind()) { - case FK_Data_2: - return ELF::R_AARCH64_ABS16; - case FK_Data_4: - return ELF::R_AARCH64_ABS32; - case FK_Data_8: - return ELF::R_AARCH64_ABS64; - case ARM64::fixup_arm64_add_imm12: - if (SymLoc == ARM64MCExpr::VK_DTPREL && IsNC) - return ELF::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_DTPREL && !IsNC) - return ELF::R_AARCH64_TLSLD_ADD_DTPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TPREL && IsNC) - return ELF::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TPREL && !IsNC) - return ELF::R_AARCH64_TLSLE_ADD_TPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TLSDESC && IsNC) - return ELF::R_AARCH64_TLSDESC_ADD_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_ADD_ABS_LO12_NC; - - report_fatal_error("invalid fixup for add (uimm12) instruction"); - return 0; - case ARM64::fixup_arm64_ldst_imm12_scale1: - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_LDST8_ABS_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_DTPREL && !IsNC) - return ELF::R_AARCH64_TLSLD_LDST8_DTPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_DTPREL && IsNC) - return ELF::R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TPREL && !IsNC) - return ELF::R_AARCH64_TLSLE_LDST8_TPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TPREL && IsNC) - return ELF::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC; - - report_fatal_error("invalid fixup for 8-bit load/store instruction"); - return 0; - case ARM64::fixup_arm64_ldst_imm12_scale2: - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_LDST16_ABS_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_DTPREL && !IsNC) - return ELF::R_AARCH64_TLSLD_LDST16_DTPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_DTPREL && IsNC) - return ELF::R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TPREL && !IsNC) - return ELF::R_AARCH64_TLSLE_LDST16_TPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TPREL && IsNC) - return ELF::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC; - - report_fatal_error("invalid fixup for 16-bit load/store instruction"); - return 0; - case ARM64::fixup_arm64_ldst_imm12_scale4: - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_LDST32_ABS_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_DTPREL && !IsNC) - return ELF::R_AARCH64_TLSLD_LDST32_DTPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_DTPREL && IsNC) - return ELF::R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TPREL && !IsNC) - return ELF::R_AARCH64_TLSLE_LDST32_TPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TPREL && IsNC) - return ELF::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC; - - report_fatal_error("invalid fixup for 32-bit load/store instruction"); - return 0; - case ARM64::fixup_arm64_ldst_imm12_scale8: - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_LDST64_ABS_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_GOT && IsNC) - return ELF::R_AARCH64_LD64_GOT_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_DTPREL && !IsNC) - return ELF::R_AARCH64_TLSLD_LDST64_DTPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_DTPREL && IsNC) - return ELF::R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TPREL && !IsNC) - return ELF::R_AARCH64_TLSLE_LDST64_TPREL_LO12; - if (SymLoc == ARM64MCExpr::VK_TPREL && IsNC) - return ELF::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_GOTTPREL && IsNC) - return ELF::R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC; - if (SymLoc == ARM64MCExpr::VK_TLSDESC && IsNC) - return ELF::R_AARCH64_TLSDESC_LD64_LO12_NC; - - report_fatal_error("invalid fixup for 64-bit load/store instruction"); - return 0; - case ARM64::fixup_arm64_ldst_imm12_scale16: - if (SymLoc == ARM64MCExpr::VK_ABS && IsNC) - return ELF::R_AARCH64_LDST128_ABS_LO12_NC; - - report_fatal_error("invalid fixup for 128-bit load/store instruction"); - return 0; - case ARM64::fixup_arm64_movw: - if (RefKind == ARM64MCExpr::VK_ABS_G3) - return ELF::R_AARCH64_MOVW_UABS_G3; - if (RefKind == ARM64MCExpr::VK_ABS_G2) - return ELF::R_AARCH64_MOVW_UABS_G2; - if (RefKind == ARM64MCExpr::VK_ABS_G2_NC) - return ELF::R_AARCH64_MOVW_UABS_G2_NC; - if (RefKind == ARM64MCExpr::VK_ABS_G1) - return ELF::R_AARCH64_MOVW_UABS_G1; - if (RefKind == ARM64MCExpr::VK_ABS_G1_NC) - return ELF::R_AARCH64_MOVW_UABS_G1_NC; - if (RefKind == ARM64MCExpr::VK_ABS_G0) - return ELF::R_AARCH64_MOVW_UABS_G0; - if (RefKind == ARM64MCExpr::VK_ABS_G0_NC) - return ELF::R_AARCH64_MOVW_UABS_G0_NC; - if (RefKind == ARM64MCExpr::VK_DTPREL_G2) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G2; - if (RefKind == ARM64MCExpr::VK_DTPREL_G1) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G1; - if (RefKind == ARM64MCExpr::VK_DTPREL_G1_NC) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC; - if (RefKind == ARM64MCExpr::VK_DTPREL_G0) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G0; - if (RefKind == ARM64MCExpr::VK_DTPREL_G0_NC) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC; - if (RefKind == ARM64MCExpr::VK_TPREL_G2) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G2; - if (RefKind == ARM64MCExpr::VK_TPREL_G1) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G1; - if (RefKind == ARM64MCExpr::VK_TPREL_G1_NC) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G1_NC; - if (RefKind == ARM64MCExpr::VK_TPREL_G0) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G0; - if (RefKind == ARM64MCExpr::VK_TPREL_G0_NC) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G0_NC; - if (RefKind == ARM64MCExpr::VK_GOTTPREL_G1) - return ELF::R_AARCH64_TLSIE_MOVW_GOTTPREL_G1; - if (RefKind == ARM64MCExpr::VK_GOTTPREL_G0_NC) - return ELF::R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC; - report_fatal_error("invalid fixup for movz/movk instruction"); - return 0; - case ARM64::fixup_arm64_tlsdesc_call: - return ELF::R_AARCH64_TLSDESC_CALL; - default: - llvm_unreachable("Unknown ELF relocation type"); - } - } - - llvm_unreachable("Unimplemented fixup -> relocation"); -} - -MCObjectWriter *llvm::createARM64ELFObjectWriter(raw_ostream &OS, - uint8_t OSABI) { - MCELFObjectTargetWriter *MOTW = new ARM64ELFObjectWriter(OSABI); - return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/true); -} |