1 /* BFD back-end for TMS320C30 coff binaries.
2 Copyright (C) 1998, 1999 Free Software Foundation, Inc.
3 Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include "coff/tic30.h"
27 #include "coff/internal.h"
30 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
32 reloc_howto_type tic30_coff_howto_table[] =
34 HOWTO (R_TIC30_ABS16, 2, 1, 16, false, 0, 0, NULL,
35 "16", false, 0x0000FFFF, 0x0000FFFF, false),
36 HOWTO (R_TIC30_ABS24, 2, 2, 24, false, 8, complain_overflow_bitfield, NULL,
37 "24", false, 0xFFFFFF00, 0xFFFFFF00, false),
38 HOWTO (R_TIC30_LDP, 18, 0, 24, false, 0, complain_overflow_bitfield, NULL,
39 "LDP", false, 0x00FF0000, 0x000000FF, false),
40 HOWTO (R_TIC30_ABS32, 2, 2, 32, false, 0, complain_overflow_bitfield, NULL,
41 "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false),
42 HOWTO (R_TIC30_PC16, 2, 1, 16, true, 0, complain_overflow_signed, NULL,
43 "PCREL", false, 0x0000FFFF, 0x0000FFFF, false),
47 #ifndef coff_bfd_reloc_type_lookup
48 #define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup
50 /* For the case statement use the code values used in tc_gen_reloc to
51 map to the howto table entries that match those in both the aout
52 and coff implementations. */
54 tic30_coff_reloc_type_lookup (abfd, code)
55 bfd *abfd ATTRIBUTE_UNUSED;
56 bfd_reloc_code_real_type code;
61 case BFD_RELOC_TIC30_LDP:
62 return &tic30_coff_howto_table[2];
64 return &tic30_coff_howto_table[0];
66 return &tic30_coff_howto_table[1];
67 case BFD_RELOC_16_PCREL:
68 return &tic30_coff_howto_table[4];
70 return &tic30_coff_howto_table[3];
72 return (reloc_howto_type *) NULL;
78 /* Turn a howto into a reloc number */
81 coff_tic30_select_reloc (howto)
82 reloc_howto_type *howto;
87 #define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto)
89 #define BADMAG(x) TIC30BADMAG(x)
90 #define TIC30 1 /* Customize coffcode.h */
91 #define __A_MAGIC_SET__
93 /* Code to swap in the reloc */
94 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
95 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
96 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \
97 dst->r_stuff[1] = 'C';
99 /* Code to turn a r_type into a howto ptr, uses the above howto table. */
102 rtype2howto (internal, dst)
104 struct internal_reloc *dst;
109 internal->howto = &tic30_coff_howto_table[0];
112 internal->howto = &tic30_coff_howto_table[1];
115 internal->howto = &tic30_coff_howto_table[3];
118 internal->howto = &tic30_coff_howto_table[2];
121 internal->howto = &tic30_coff_howto_table[4];
129 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
131 /* Perform any necessary magic to the addend in a reloc entry */
133 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
134 cache_ptr->addend = ext_reloc.r_offset;
136 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
137 reloc_processing(relent, reloc, symbols, abfd, section)
140 reloc_processing (relent, reloc, symbols, abfd, section)
142 struct internal_reloc *reloc;
147 relent->address = reloc->r_vaddr;
148 rtype2howto (relent, reloc);
150 if (reloc->r_symndx > 0)
152 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
156 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
158 relent->addend = reloc->r_offset;
159 relent->address -= section->vma;
162 #include "coffcode.h"
164 const bfd_target tic30_coff_vec =
166 "coff-tic30", /* name */
167 bfd_target_coff_flavour,
168 BFD_ENDIAN_BIG, /* data byte order is big */
169 BFD_ENDIAN_LITTLE, /* header byte order is little */
171 (HAS_RELOC | EXEC_P | /* object flags */
172 HAS_LINENO | HAS_DEBUG |
173 HAS_SYMS | HAS_LOCALS | WP_TEXT),
175 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
176 '_', /* leading symbol underscore */
177 '/', /* ar_pad_char */
178 15, /* ar_max_namelen */
179 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
180 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
181 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
182 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
183 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
184 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
186 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
187 bfd_generic_archive_p, _bfd_dummy_target},
188 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
190 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
191 _bfd_write_archive_contents, bfd_false},
193 BFD_JUMP_TABLE_GENERIC (coff),
194 BFD_JUMP_TABLE_COPY (coff),
195 BFD_JUMP_TABLE_CORE (_bfd_nocore),
196 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
197 BFD_JUMP_TABLE_SYMBOLS (coff),
198 BFD_JUMP_TABLE_RELOCS (coff),
199 BFD_JUMP_TABLE_WRITE (coff),
200 BFD_JUMP_TABLE_LINK (coff),
201 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),