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- /* NFP-specific support for 64-bit ELF
- Copyright (C) 2017-2022 Free Software Foundation, Inc.
- Contributed by Francois H. Theron <francois.theron@netronome.com>
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor,
- Boston, MA 02110-1301, USA. */
- #include "sysdep.h"
- #include "bfd.h"
- #include "libbfd.h"
- #include "elf-bfd.h"
- #include "elf/nfp.h"
- static bfd_reloc_status_type
- elf64_nfp_reloc (bfd * abfd ATTRIBUTE_UNUSED,
- arelent * reloc_entry,
- asymbol * symbol,
- void *data ATTRIBUTE_UNUSED,
- asection * input_section,
- bfd * output_bfd,
- char **error_message ATTRIBUTE_UNUSED);
- /* We don't actually apply any relocations in this toolset
- so we make them all do nothing, but at least display useful
- names.
- Most of these are mainly used by the NFP toolchain to resolve things
- before the final ELF file is created. */
- static reloc_howto_type elf_nfp_howto_table[] =
- {
- HOWTO (R_NFP_NOTYPE, /* Type. */
- 0, /* Rightshift. */
- 3, /* Size. */
- 0, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont,/* Complain_on_overflow. */
- elf64_nfp_reloc, /* Special_function. */
- "R_NFP_NOTYPE", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- false), /* PCrel_offset. */
- HOWTO (R_NFP_W32LE, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32LE",
- false, 0, 0, false),
- HOWTO (R_NFP_SRC8_A, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC8_A",
- false, 0, 0, false),
- HOWTO (R_NFP_SRC8_B, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC8_B",
- false, 0, 0, false),
- HOWTO (R_NFP_IMMED8_I, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_IMMED8_I",
- false, 0, 0, false),
- HOWTO (R_NFP_SC, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SC",
- false, 0, 0, false),
- HOWTO (R_NFP_IMMED_LO16_I_A, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_IMMED_LO16_I_A",
- false, 0, 0, false),
- HOWTO (R_NFP_IMMED_LO16_I_B, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_IMMED_LO16_I_B",
- true, 0, 0, false),
- HOWTO (R_NFP_SRC7_B, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC7_B",
- false, 0, 0, false),
- HOWTO (R_NFP_SRC7_A, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC7_A",
- false, 0, 0, false),
- HOWTO (R_NFP_SRC8_I_B, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC8_I_B",
- false, 0, 0, false),
- HOWTO (R_NFP_SRC8_I_A, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SRC8_I_A",
- false, 0, 0, false),
- HOWTO (R_NFP_IMMED_HI16_I_A, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_IMMED_HI16_I_A",
- false, 0, 0, false),
- HOWTO (R_NFP_IMMED_HI16_I_B, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_IMMED_HI16_I_B",
- false, 0, 0, false),
- HOWTO (R_NFP_W64LE, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64LE",
- false, 0, 0, false),
- HOWTO (R_NFP_SH_INFO, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_SH_INFO",
- false, 0, 0, false),
- HOWTO (R_NFP_W32BE, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32BE",
- false, 0, 0, false),
- HOWTO (R_NFP_W64BE, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64BE",
- false, 0, 0, false),
- HOWTO (R_NFP_W32_29_24, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32_29_24",
- false, 0, 0, false),
- HOWTO (R_NFP_W32LE_AND, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32LE_AND",
- false, 0, 0, false),
- HOWTO (R_NFP_W32BE_AND, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32BE_AND",
- false, 0, 0, false),
- HOWTO (R_NFP_W32LE_OR, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32LE_OR",
- false, 0, 0, false),
- HOWTO (R_NFP_W32BE_OR, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W32BE_OR",
- false, 0, 0, false),
- HOWTO (R_NFP_W64LE_AND, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64LE_AND",
- false, 0, 0, false),
- HOWTO (R_NFP_W64BE_AND, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64BE_AND",
- false, 0, 0, false),
- HOWTO (R_NFP_W64LE_OR, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64LE_OR",
- false, 0, 0, false),
- HOWTO (R_NFP_W64BE_OR, 0, 3, 0, false, 0,
- complain_overflow_dont, elf64_nfp_reloc,
- "R_NFP_W64BE_OR",
- false, 0, 0, false)
- };
- static bool
- elf64_nfp_object_p (bfd * abfd)
- {
- /* If the e_machine value is one of the unofficial ones, we convert
- it first and set e_flags accordingly for later consistency. */
- if (elf_elfheader (abfd)->e_machine == E_NFP_MACH_3200)
- {
- elf_elfheader (abfd)->e_machine = EM_NFP;
- elf_elfheader (abfd)->e_flags &= ~EF_NFP_SET_MACH (~0);
- elf_elfheader (abfd)->e_flags |= EF_NFP_SET_MACH (E_NFP_MACH_3200);
- }
- else if (elf_elfheader (abfd)->e_machine == E_NFP_MACH_6000)
- {
- elf_elfheader (abfd)->e_machine = EM_NFP;
- elf_elfheader (abfd)->e_flags &= ~EF_NFP_SET_MACH (~0);
- elf_elfheader (abfd)->e_flags |= EF_NFP_SET_MACH (E_NFP_MACH_6000);
- }
- if (elf_elfheader (abfd)->e_machine == EM_NFP)
- {
- int e_mach = EF_NFP_MACH (elf_elfheader (abfd)->e_flags);
- switch (e_mach)
- {
- case E_NFP_MACH_3200:
- case E_NFP_MACH_6000:
- if (!bfd_default_set_arch_mach (abfd, bfd_arch_nfp, e_mach))
- return false;
- default:
- break;
- }
- }
- return true;
- }
- static bool
- elf64_nfp_section_from_shdr (bfd * abfd,
- Elf_Internal_Shdr * hdr,
- const char *name, int shindex)
- {
- switch (hdr->sh_type)
- {
- case SHT_NFP_INITREG:
- case SHT_NFP_MECONFIG:
- case SHT_NFP_UDEBUG:
- return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex);
- default:
- return false;
- }
- }
- bfd_reloc_status_type
- elf64_nfp_reloc (bfd * abfd ATTRIBUTE_UNUSED,
- arelent * reloc_entry ATTRIBUTE_UNUSED,
- asymbol * symbol ATTRIBUTE_UNUSED,
- void *data ATTRIBUTE_UNUSED,
- asection * input_section ATTRIBUTE_UNUSED,
- bfd * output_bfd ATTRIBUTE_UNUSED,
- char **error_message ATTRIBUTE_UNUSED)
- {
- return bfd_reloc_ok;
- }
- static bool
- elf64_nfp_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED,
- arelent * cache_ptr, Elf_Internal_Rela * dst)
- {
- unsigned int r_type;
- r_type = ELF64_R_TYPE (dst->r_info);
- if (r_type >= R_NFP_MAX)
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- cache_ptr->howto = &elf_nfp_howto_table[r_type];
- return true;
- }
- static reloc_howto_type *
- elf64_nfp_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code ATTRIBUTE_UNUSED)
- {
- return NULL;
- }
- static reloc_howto_type *
- elf64_nfp_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED,
- const char *r_name ATTRIBUTE_UNUSED)
- {
- return NULL;
- }
- #define ELF_ARCH bfd_arch_nfp
- #define ELF_MACHINE_CODE EM_NFP
- #define ELF_MACHINE_ALT1 E_NFP_MACH_6000
- #define ELF_MACHINE_ALT2 E_NFP_MACH_3200
- #define ELF_MAXPAGESIZE 1
- #define TARGET_LITTLE_NAME "elf64-nfp"
- #define TARGET_LITTLE_SYM nfp_elf64_vec
- #define elf_backend_object_p elf64_nfp_object_p
- #define elf_backend_section_from_shdr elf64_nfp_section_from_shdr
- #define elf_info_to_howto elf64_nfp_info_to_howto
- #define bfd_elf64_bfd_reloc_type_lookup elf64_nfp_reloc_type_lookup
- #define bfd_elf64_bfd_reloc_name_lookup elf64_nfp_reloc_name_lookup
- #include "elf64-target.h"
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