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- /* BFD back-end for TMS320C30 coff binaries.
- Copyright (C) 1998-2022 Free Software Foundation, Inc.
- Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
- 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 "bfdlink.h"
- #include "coff/tic30.h"
- #include "coff/internal.h"
- #include "libcoff.h"
- #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
- reloc_howto_type tic30_coff_howto_table[] =
- {
- HOWTO (R_TIC30_ABS16, 2, 1, 16, false, 0, 0, NULL,
- "16", false, 0x0000FFFF, 0x0000FFFF, false),
- HOWTO (R_TIC30_ABS24, 2, 2, 24, false, 8, complain_overflow_bitfield, NULL,
- "24", false, 0xFFFFFF00, 0xFFFFFF00, false),
- HOWTO (R_TIC30_LDP, 18, 0, 24, false, 0, complain_overflow_bitfield, NULL,
- "LDP", false, 0x00FF0000, 0x000000FF, false),
- HOWTO (R_TIC30_ABS32, 2, 2, 32, false, 0, complain_overflow_bitfield, NULL,
- "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false),
- HOWTO (R_TIC30_PC16, 2, 1, 16, true, 0, complain_overflow_signed, NULL,
- "PCREL", false, 0x0000FFFF, 0x0000FFFF, false),
- EMPTY_HOWTO (-1)
- };
- #ifndef coff_bfd_reloc_type_lookup
- #define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup
- #define coff_bfd_reloc_name_lookup tic30_coff_reloc_name_lookup
- /* For the case statement use the code values used in tc_gen_reloc to
- map to the howto table entries that match those in both the aout
- and coff implementations. */
- static reloc_howto_type *
- tic30_coff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code)
- {
- switch (code)
- {
- case BFD_RELOC_8:
- case BFD_RELOC_TIC30_LDP:
- return &tic30_coff_howto_table[2];
- case BFD_RELOC_16:
- return &tic30_coff_howto_table[0];
- case BFD_RELOC_24:
- return &tic30_coff_howto_table[1];
- case BFD_RELOC_16_PCREL:
- return &tic30_coff_howto_table[4];
- case BFD_RELOC_32:
- return &tic30_coff_howto_table[3];
- default:
- return (reloc_howto_type *) NULL;
- }
- }
- static reloc_howto_type *
- tic30_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- const char *r_name)
- {
- unsigned int i;
- for (i = 0;
- i < (sizeof (tic30_coff_howto_table)
- / sizeof (tic30_coff_howto_table[0]));
- i++)
- if (tic30_coff_howto_table[i].name != NULL
- && strcasecmp (tic30_coff_howto_table[i].name, r_name) == 0)
- return &tic30_coff_howto_table[i];
- return NULL;
- }
- #endif
- /* Turn a howto into a reloc number. */
- static int
- coff_tic30_select_reloc (reloc_howto_type *howto)
- {
- return howto->type;
- }
- #define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto)
- #define BADMAG(x) TIC30BADMAG(x)
- #define TIC30 1 /* Customize coffcode.h */
- #define __A_MAGIC_SET__
- /* Code to swap in the reloc */
- #define SWAP_IN_RELOC_OFFSET H_GET_32
- #define SWAP_OUT_RELOC_OFFSET H_PUT_32
- #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \
- dst->r_stuff[1] = 'C';
- /* Code to turn a r_type into a howto ptr, uses the above howto table. */
- static void
- rtype2howto (arelent *internal, struct internal_reloc *dst)
- {
- switch (dst->r_type)
- {
- case R_TIC30_ABS16:
- internal->howto = &tic30_coff_howto_table[0];
- break;
- case R_TIC30_ABS24:
- internal->howto = &tic30_coff_howto_table[1];
- break;
- case R_TIC30_ABS32:
- internal->howto = &tic30_coff_howto_table[3];
- break;
- case R_TIC30_LDP:
- internal->howto = &tic30_coff_howto_table[2];
- break;
- case R_TIC30_PC16:
- internal->howto = &tic30_coff_howto_table[4];
- break;
- default:
- internal->howto = NULL;
- break;
- }
- }
- #define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
- /* Perform any necessary magic to the addend in a reloc entry */
- #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
- cache_ptr->addend = ext_reloc.r_offset;
- #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
- reloc_processing(relent, reloc, symbols, abfd, section)
- static void
- reloc_processing (arelent *relent,
- struct internal_reloc *reloc,
- asymbol **symbols,
- bfd *abfd,
- asection *section)
- {
- relent->address = reloc->r_vaddr;
- rtype2howto (relent, reloc);
- if (reloc->r_symndx == -1)
- relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
- else if (reloc->r_symndx >= 0 && reloc->r_symndx < obj_conv_table_size (abfd))
- relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
- else
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: warning: illegal symbol index %ld in relocs"),
- abfd, reloc->r_symndx);
- relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
- }
- relent->addend = reloc->r_offset;
- relent->address -= section->vma;
- }
- #ifndef bfd_pe_print_pdata
- #define bfd_pe_print_pdata NULL
- #endif
- #include "coffcode.h"
- const bfd_target tic30_coff_vec =
- {
- "coff-tic30", /* name */
- bfd_target_coff_flavour,
- BFD_ENDIAN_BIG, /* data byte order is big */
- BFD_ENDIAN_LITTLE, /* header byte order is little */
- (HAS_RELOC | EXEC_P /* object flags */
- | HAS_LINENO | HAS_DEBUG
- | HAS_SYMS | HAS_LOCALS | WP_TEXT),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- '_', /* leading symbol underscore */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 0, /* match priority. */
- TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
- { /* bfd_check_format */
- _bfd_dummy_target,
- coff_object_p,
- bfd_generic_archive_p,
- _bfd_dummy_target
- },
- { /* bfd_set_format */
- _bfd_bool_bfd_false_error,
- coff_mkobject,
- _bfd_generic_mkarchive,
- _bfd_bool_bfd_false_error
- },
- { /* bfd_write_contents */
- _bfd_bool_bfd_false_error,
- coff_write_object_contents,
- _bfd_write_archive_contents,
- _bfd_bool_bfd_false_error
- },
- BFD_JUMP_TABLE_GENERIC (coff),
- BFD_JUMP_TABLE_COPY (coff),
- BFD_JUMP_TABLE_CORE (_bfd_nocore),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
- BFD_JUMP_TABLE_SYMBOLS (coff),
- BFD_JUMP_TABLE_RELOCS (coff),
- BFD_JUMP_TABLE_WRITE (coff),
- BFD_JUMP_TABLE_LINK (coff),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
- NULL,
- COFF_SWAP_TABLE
- };
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