diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp | |
parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) | |
download | src-0b57cec536236d46e3dba9bd041533462f33dbb7.tar.gz src-0b57cec536236d46e3dba9bd041533462f33dbb7.zip |
Move all sources from the llvm project into contrib/llvm-project.
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.
Updating the vendor area to match this layout is next.
Notes
Notes:
svn path=/head/; revision=355940
Diffstat (limited to 'contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp | 438 |
1 files changed, 0 insertions, 438 deletions
diff --git a/contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp b/contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp deleted file mode 100644 index c871e2c62eac..000000000000 --- a/contrib/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFObjectWriter.cpp +++ /dev/null @@ -1,438 +0,0 @@ -//===-- AArch64ELFObjectWriter.cpp - AArch64 ELF Writer -------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// -// -// This file handles ELF-specific object emission, converting LLVM's internal -// fixups into the appropriate relocations. -// -//===----------------------------------------------------------------------===// - -#include "MCTargetDesc/AArch64FixupKinds.h" -#include "MCTargetDesc/AArch64MCExpr.h" -#include "MCTargetDesc/AArch64MCTargetDesc.h" -#include "llvm/BinaryFormat/ELF.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCELFObjectWriter.h" -#include "llvm/MC/MCFixup.h" -#include "llvm/MC/MCObjectWriter.h" -#include "llvm/MC/MCValue.h" -#include "llvm/Support/ErrorHandling.h" -#include <cassert> -#include <cstdint> - -using namespace llvm; - -namespace { - -class AArch64ELFObjectWriter : public MCELFObjectTargetWriter { -public: - AArch64ELFObjectWriter(uint8_t OSABI, bool IsILP32); - - ~AArch64ELFObjectWriter() override = default; - -protected: - unsigned getRelocType(MCContext &Ctx, const MCValue &Target, - const MCFixup &Fixup, bool IsPCRel) const override; - bool IsILP32; -}; - -} // end anonymous namespace - -AArch64ELFObjectWriter::AArch64ELFObjectWriter(uint8_t OSABI, bool IsILP32) - : MCELFObjectTargetWriter(/*Is64Bit*/ true, OSABI, ELF::EM_AARCH64, - /*HasRelocationAddend*/ true), - IsILP32(IsILP32) {} - -#define R_CLS(rtype) \ - IsILP32 ? ELF::R_AARCH64_P32_##rtype : ELF::R_AARCH64_##rtype -#define BAD_ILP32_MOV(lp64rtype) \ - "ILP32 absolute MOV relocation not " \ - "supported (LP64 eqv: " #lp64rtype ")" - -// assumes IsILP32 is true -static bool isNonILP32reloc(const MCFixup &Fixup, - AArch64MCExpr::VariantKind RefKind, - MCContext &Ctx) { - if ((unsigned)Fixup.getKind() != AArch64::fixup_aarch64_movw) - return false; - switch (RefKind) { - case AArch64MCExpr::VK_ABS_G3: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_UABS_G3)); - return true; - case AArch64MCExpr::VK_ABS_G2: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_UABS_G2)); - return true; - case AArch64MCExpr::VK_ABS_G2_S: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_SABS_G2)); - return true; - case AArch64MCExpr::VK_ABS_G2_NC: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_UABS_G2_NC)); - return true; - case AArch64MCExpr::VK_ABS_G1_S: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_SABS_G1)); - return true; - case AArch64MCExpr::VK_ABS_G1_NC: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(MOVW_UABS_G1_NC)); - return true; - case AArch64MCExpr::VK_DTPREL_G2: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSLD_MOVW_DTPREL_G2)); - return true; - case AArch64MCExpr::VK_DTPREL_G1_NC: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSLD_MOVW_DTPREL_G1_NC)); - return true; - case AArch64MCExpr::VK_TPREL_G2: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSLE_MOVW_TPREL_G2)); - return true; - case AArch64MCExpr::VK_TPREL_G1_NC: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSLE_MOVW_TPREL_G1_NC)); - return true; - case AArch64MCExpr::VK_GOTTPREL_G1: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSIE_MOVW_GOTTPREL_G1)); - return true; - case AArch64MCExpr::VK_GOTTPREL_G0_NC: - Ctx.reportError(Fixup.getLoc(), BAD_ILP32_MOV(TLSIE_MOVW_GOTTPREL_G0_NC)); - return true; - default: - return false; - } - return false; -} - -unsigned AArch64ELFObjectWriter::getRelocType(MCContext &Ctx, - const MCValue &Target, - const MCFixup &Fixup, - bool IsPCRel) const { - AArch64MCExpr::VariantKind RefKind = - static_cast<AArch64MCExpr::VariantKind>(Target.getRefKind()); - AArch64MCExpr::VariantKind SymLoc = AArch64MCExpr::getSymbolLoc(RefKind); - bool IsNC = AArch64MCExpr::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_1: - Ctx.reportError(Fixup.getLoc(), "1-byte data relocations not supported"); - return ELF::R_AARCH64_NONE; - case FK_Data_2: - return R_CLS(PREL16); - case FK_Data_4: - return R_CLS(PREL32); - case FK_Data_8: - if (IsILP32) { - Ctx.reportError(Fixup.getLoc(), - "ILP32 8 byte PC relative data " - "relocation not supported (LP64 eqv: PREL64)"); - return ELF::R_AARCH64_NONE; - } else - return ELF::R_AARCH64_PREL64; - case AArch64::fixup_aarch64_pcrel_adr_imm21: - if (SymLoc != AArch64MCExpr::VK_ABS) - Ctx.reportError(Fixup.getLoc(), - "invalid symbol kind for ADR relocation"); - return R_CLS(ADR_PREL_LO21); - case AArch64::fixup_aarch64_pcrel_adrp_imm21: - if (SymLoc == AArch64MCExpr::VK_ABS && !IsNC) - return R_CLS(ADR_PREL_PG_HI21); - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) { - if (IsILP32) { - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 32-bit pcrel ADRP instruction " - "VK_ABS VK_NC"); - return ELF::R_AARCH64_NONE; - } else { - return ELF::R_AARCH64_ADR_PREL_PG_HI21_NC; - } - } - if (SymLoc == AArch64MCExpr::VK_GOT && !IsNC) - return R_CLS(ADR_GOT_PAGE); - if (SymLoc == AArch64MCExpr::VK_GOTTPREL && !IsNC) - return R_CLS(TLSIE_ADR_GOTTPREL_PAGE21); - if (SymLoc == AArch64MCExpr::VK_TLSDESC && !IsNC) - return R_CLS(TLSDESC_ADR_PAGE21); - Ctx.reportError(Fixup.getLoc(), - "invalid symbol kind for ADRP relocation"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_pcrel_branch26: - return R_CLS(JUMP26); - case AArch64::fixup_aarch64_pcrel_call26: - return R_CLS(CALL26); - case AArch64::fixup_aarch64_ldr_pcrel_imm19: - if (SymLoc == AArch64MCExpr::VK_GOTTPREL) - return R_CLS(TLSIE_LD_GOTTPREL_PREL19); - if (SymLoc == AArch64MCExpr::VK_GOT) - return R_CLS(GOT_LD_PREL19); - return R_CLS(LD_PREL_LO19); - case AArch64::fixup_aarch64_pcrel_branch14: - return R_CLS(TSTBR14); - case AArch64::fixup_aarch64_pcrel_branch19: - return R_CLS(CONDBR19); - default: - Ctx.reportError(Fixup.getLoc(), "Unsupported pc-relative fixup kind"); - return ELF::R_AARCH64_NONE; - } - } else { - if (IsILP32 && isNonILP32reloc(Fixup, RefKind, Ctx)) - return ELF::R_AARCH64_NONE; - switch ((unsigned)Fixup.getKind()) { - case FK_NONE: - return ELF::R_AARCH64_NONE; - case FK_Data_1: - Ctx.reportError(Fixup.getLoc(), "1-byte data relocations not supported"); - return ELF::R_AARCH64_NONE; - case FK_Data_2: - return R_CLS(ABS16); - case FK_Data_4: - return R_CLS(ABS32); - case FK_Data_8: - if (IsILP32) { - Ctx.reportError(Fixup.getLoc(), - "ILP32 8 byte absolute data " - "relocation not supported (LP64 eqv: ABS64)"); - return ELF::R_AARCH64_NONE; - } else - return ELF::R_AARCH64_ABS64; - case AArch64::fixup_aarch64_add_imm12: - if (RefKind == AArch64MCExpr::VK_DTPREL_HI12) - return R_CLS(TLSLD_ADD_DTPREL_HI12); - if (RefKind == AArch64MCExpr::VK_TPREL_HI12) - return R_CLS(TLSLE_ADD_TPREL_HI12); - if (RefKind == AArch64MCExpr::VK_DTPREL_LO12_NC) - return R_CLS(TLSLD_ADD_DTPREL_LO12_NC); - if (RefKind == AArch64MCExpr::VK_DTPREL_LO12) - return R_CLS(TLSLD_ADD_DTPREL_LO12); - if (RefKind == AArch64MCExpr::VK_TPREL_LO12_NC) - return R_CLS(TLSLE_ADD_TPREL_LO12_NC); - if (RefKind == AArch64MCExpr::VK_TPREL_LO12) - return R_CLS(TLSLE_ADD_TPREL_LO12); - if (RefKind == AArch64MCExpr::VK_TLSDESC_LO12) - return R_CLS(TLSDESC_ADD_LO12); - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(ADD_ABS_LO12_NC); - - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for add (uimm12) instruction"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_ldst_imm12_scale1: - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(LDST8_ABS_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_DTPREL && !IsNC) - return R_CLS(TLSLD_LDST8_DTPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_DTPREL && IsNC) - return R_CLS(TLSLD_LDST8_DTPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_TPREL && !IsNC) - return R_CLS(TLSLE_LDST8_TPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_TPREL && IsNC) - return R_CLS(TLSLE_LDST8_TPREL_LO12_NC); - - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 8-bit load/store instruction"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_ldst_imm12_scale2: - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(LDST16_ABS_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_DTPREL && !IsNC) - return R_CLS(TLSLD_LDST16_DTPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_DTPREL && IsNC) - return R_CLS(TLSLD_LDST16_DTPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_TPREL && !IsNC) - return R_CLS(TLSLE_LDST16_TPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_TPREL && IsNC) - return R_CLS(TLSLE_LDST16_TPREL_LO12_NC); - - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 16-bit load/store instruction"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_ldst_imm12_scale4: - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(LDST32_ABS_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_DTPREL && !IsNC) - return R_CLS(TLSLD_LDST32_DTPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_DTPREL && IsNC) - return R_CLS(TLSLD_LDST32_DTPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_TPREL && !IsNC) - return R_CLS(TLSLE_LDST32_TPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_TPREL && IsNC) - return R_CLS(TLSLE_LDST32_TPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_GOT && IsNC) { - if (IsILP32) { - return ELF::R_AARCH64_P32_LD32_GOT_LO12_NC; - } else { - Ctx.reportError(Fixup.getLoc(), - "LP64 4 byte unchecked GOT load/store relocation " - "not supported (ILP32 eqv: LD32_GOT_LO12_NC"); - return ELF::R_AARCH64_NONE; - } - } - if (SymLoc == AArch64MCExpr::VK_GOT && !IsNC) { - if (IsILP32) { - Ctx.reportError(Fixup.getLoc(), - "ILP32 4 byte checked GOT load/store relocation " - "not supported (unchecked eqv: LD32_GOT_LO12_NC)"); - } else { - Ctx.reportError(Fixup.getLoc(), - "LP64 4 byte checked GOT load/store relocation " - "not supported (unchecked/ILP32 eqv: " - "LD32_GOT_LO12_NC)"); - } - return ELF::R_AARCH64_NONE; - } - if (SymLoc == AArch64MCExpr::VK_GOTTPREL && IsNC) { - if (IsILP32) { - return ELF::R_AARCH64_P32_TLSIE_LD32_GOTTPREL_LO12_NC; - } else { - Ctx.reportError(Fixup.getLoc(), - "LP64 32-bit load/store " - "relocation not supported (ILP32 eqv: " - "TLSIE_LD32_GOTTPREL_LO12_NC)"); - return ELF::R_AARCH64_NONE; - } - } - if (SymLoc == AArch64MCExpr::VK_TLSDESC && !IsNC) { - if (IsILP32) { - return ELF::R_AARCH64_P32_TLSDESC_LD32_LO12; - } else { - Ctx.reportError(Fixup.getLoc(), - "LP64 4 byte TLSDESC load/store relocation " - "not supported (ILP32 eqv: TLSDESC_LD64_LO12)"); - return ELF::R_AARCH64_NONE; - } - } - - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 32-bit load/store instruction " - "fixup_aarch64_ldst_imm12_scale4"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_ldst_imm12_scale8: - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(LDST64_ABS_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_GOT && IsNC) { - if (!IsILP32) { - return ELF::R_AARCH64_LD64_GOT_LO12_NC; - } else { - Ctx.reportError(Fixup.getLoc(), "ILP32 64-bit load/store " - "relocation not supported (LP64 eqv: " - "LD64_GOT_LO12_NC)"); - return ELF::R_AARCH64_NONE; - } - } - if (SymLoc == AArch64MCExpr::VK_DTPREL && !IsNC) - return R_CLS(TLSLD_LDST64_DTPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_DTPREL && IsNC) - return R_CLS(TLSLD_LDST64_DTPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_TPREL && !IsNC) - return R_CLS(TLSLE_LDST64_TPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_TPREL && IsNC) - return R_CLS(TLSLE_LDST64_TPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_GOTTPREL && IsNC) { - if (!IsILP32) { - return ELF::R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC; - } else { - Ctx.reportError(Fixup.getLoc(), "ILP32 64-bit load/store " - "relocation not supported (LP64 eqv: " - "TLSIE_LD64_GOTTPREL_LO12_NC)"); - return ELF::R_AARCH64_NONE; - } - } - if (SymLoc == AArch64MCExpr::VK_TLSDESC) { - if (!IsILP32) { - return ELF::R_AARCH64_TLSDESC_LD64_LO12; - } else { - Ctx.reportError(Fixup.getLoc(), "ILP32 64-bit load/store " - "relocation not supported (LP64 eqv: " - "TLSDESC_LD64_LO12)"); - return ELF::R_AARCH64_NONE; - } - } - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 64-bit load/store instruction"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_ldst_imm12_scale16: - if (SymLoc == AArch64MCExpr::VK_ABS && IsNC) - return R_CLS(LDST128_ABS_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_DTPREL && !IsNC) - return R_CLS(TLSLD_LDST128_DTPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_DTPREL && IsNC) - return R_CLS(TLSLD_LDST128_DTPREL_LO12_NC); - if (SymLoc == AArch64MCExpr::VK_TPREL && !IsNC) - return R_CLS(TLSLE_LDST128_TPREL_LO12); - if (SymLoc == AArch64MCExpr::VK_TPREL && IsNC) - return R_CLS(TLSLE_LDST128_TPREL_LO12_NC); - - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for 128-bit load/store instruction"); - return ELF::R_AARCH64_NONE; - // ILP32 case not reached here, tested with isNonILP32reloc - case AArch64::fixup_aarch64_movw: - if (RefKind == AArch64MCExpr::VK_ABS_G3) - return ELF::R_AARCH64_MOVW_UABS_G3; - if (RefKind == AArch64MCExpr::VK_ABS_G2) - return ELF::R_AARCH64_MOVW_UABS_G2; - if (RefKind == AArch64MCExpr::VK_ABS_G2_S) - return ELF::R_AARCH64_MOVW_SABS_G2; - if (RefKind == AArch64MCExpr::VK_ABS_G2_NC) - return ELF::R_AARCH64_MOVW_UABS_G2_NC; - if (RefKind == AArch64MCExpr::VK_ABS_G1) - return R_CLS(MOVW_UABS_G1); - if (RefKind == AArch64MCExpr::VK_ABS_G1_S) - return ELF::R_AARCH64_MOVW_SABS_G1; - if (RefKind == AArch64MCExpr::VK_ABS_G1_NC) - return ELF::R_AARCH64_MOVW_UABS_G1_NC; - if (RefKind == AArch64MCExpr::VK_ABS_G0) - return R_CLS(MOVW_UABS_G0); - if (RefKind == AArch64MCExpr::VK_ABS_G0_S) - return R_CLS(MOVW_SABS_G0); - if (RefKind == AArch64MCExpr::VK_ABS_G0_NC) - return R_CLS(MOVW_UABS_G0_NC); - if (RefKind == AArch64MCExpr::VK_DTPREL_G2) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G2; - if (RefKind == AArch64MCExpr::VK_DTPREL_G1) - return R_CLS(TLSLD_MOVW_DTPREL_G1); - if (RefKind == AArch64MCExpr::VK_DTPREL_G1_NC) - return ELF::R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC; - if (RefKind == AArch64MCExpr::VK_DTPREL_G0) - return R_CLS(TLSLD_MOVW_DTPREL_G0); - if (RefKind == AArch64MCExpr::VK_DTPREL_G0_NC) - return R_CLS(TLSLD_MOVW_DTPREL_G0_NC); - if (RefKind == AArch64MCExpr::VK_TPREL_G2) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G2; - if (RefKind == AArch64MCExpr::VK_TPREL_G1) - return R_CLS(TLSLE_MOVW_TPREL_G1); - if (RefKind == AArch64MCExpr::VK_TPREL_G1_NC) - return ELF::R_AARCH64_TLSLE_MOVW_TPREL_G1_NC; - if (RefKind == AArch64MCExpr::VK_TPREL_G0) - return R_CLS(TLSLE_MOVW_TPREL_G0); - if (RefKind == AArch64MCExpr::VK_TPREL_G0_NC) - return R_CLS(TLSLE_MOVW_TPREL_G0_NC); - if (RefKind == AArch64MCExpr::VK_GOTTPREL_G1) - return ELF::R_AARCH64_TLSIE_MOVW_GOTTPREL_G1; - if (RefKind == AArch64MCExpr::VK_GOTTPREL_G0_NC) - return ELF::R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC; - Ctx.reportError(Fixup.getLoc(), - "invalid fixup for movz/movk instruction"); - return ELF::R_AARCH64_NONE; - case AArch64::fixup_aarch64_tlsdesc_call: - return R_CLS(TLSDESC_CALL); - default: - Ctx.reportError(Fixup.getLoc(), "Unknown ELF relocation type"); - return ELF::R_AARCH64_NONE; - } - } - - llvm_unreachable("Unimplemented fixup -> relocation"); -} - -std::unique_ptr<MCObjectTargetWriter> -llvm::createAArch64ELFObjectWriter(uint8_t OSABI, bool IsILP32) { - return llvm::make_unique<AArch64ELFObjectWriter>(OSABI, IsILP32); -} |