1 /* BFD back-end for TMS320C30 coff binaries.
2 Copyright 1998, 1999, 2000, 2001, 2002, 2007, 2008
3 Free Software Foundation, Inc.
4 Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
27 #include "coff/tic30.h"
28 #include "coff/internal.h"
31 static int coff_tic30_select_reloc PARAMS ((reloc_howto_type *));
32 static void rtype2howto PARAMS ((arelent *, struct internal_reloc *));
33 static void reloc_processing PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *));
35 reloc_howto_type * tic30_coff_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type));
37 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
39 reloc_howto_type tic30_coff_howto_table[] =
41 HOWTO (R_TIC30_ABS16, 2, 1, 16, FALSE, 0, 0, NULL,
42 "16", FALSE, 0x0000FFFF, 0x0000FFFF, FALSE),
43 HOWTO (R_TIC30_ABS24, 2, 2, 24, FALSE, 8, complain_overflow_bitfield, NULL,
44 "24", FALSE, 0xFFFFFF00, 0xFFFFFF00, FALSE),
45 HOWTO (R_TIC30_LDP, 18, 0, 24, FALSE, 0, complain_overflow_bitfield, NULL,
46 "LDP", FALSE, 0x00FF0000, 0x000000FF, FALSE),
47 HOWTO (R_TIC30_ABS32, 2, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL,
48 "32", FALSE, 0xFFFFFFFF, 0xFFFFFFFF, FALSE),
49 HOWTO (R_TIC30_PC16, 2, 1, 16, TRUE, 0, complain_overflow_signed, NULL,
50 "PCREL", FALSE, 0x0000FFFF, 0x0000FFFF, FALSE),
54 #ifndef coff_bfd_reloc_type_lookup
55 #define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup
56 #define coff_bfd_reloc_name_lookup tic30_coff_reloc_name_lookup
58 /* For the case statement use the code values used in tc_gen_reloc to
59 map to the howto table entries that match those in both the aout
60 and coff implementations. */
63 tic30_coff_reloc_type_lookup (abfd, code)
64 bfd *abfd ATTRIBUTE_UNUSED;
65 bfd_reloc_code_real_type code;
70 case BFD_RELOC_TIC30_LDP:
71 return &tic30_coff_howto_table[2];
73 return &tic30_coff_howto_table[0];
75 return &tic30_coff_howto_table[1];
76 case BFD_RELOC_16_PCREL:
77 return &tic30_coff_howto_table[4];
79 return &tic30_coff_howto_table[3];
81 return (reloc_howto_type *) NULL;
85 static reloc_howto_type *
86 tic30_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
92 i < (sizeof (tic30_coff_howto_table)
93 / sizeof (tic30_coff_howto_table[0]));
95 if (tic30_coff_howto_table[i].name != NULL
96 && strcasecmp (tic30_coff_howto_table[i].name, r_name) == 0)
97 return &tic30_coff_howto_table[i];
104 /* Turn a howto into a reloc number. */
107 coff_tic30_select_reloc (howto)
108 reloc_howto_type *howto;
113 #define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto)
115 #define BADMAG(x) TIC30BADMAG(x)
116 #define TIC30 1 /* Customize coffcode.h */
117 #define __A_MAGIC_SET__
119 /* Code to swap in the reloc */
120 #define SWAP_IN_RELOC_OFFSET H_GET_32
121 #define SWAP_OUT_RELOC_OFFSET H_PUT_32
122 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \
123 dst->r_stuff[1] = 'C';
125 /* Code to turn a r_type into a howto ptr, uses the above howto table. */
128 rtype2howto (internal, dst)
130 struct internal_reloc *dst;
135 internal->howto = &tic30_coff_howto_table[0];
138 internal->howto = &tic30_coff_howto_table[1];
141 internal->howto = &tic30_coff_howto_table[3];
144 internal->howto = &tic30_coff_howto_table[2];
147 internal->howto = &tic30_coff_howto_table[4];
155 #define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
157 /* Perform any necessary magic to the addend in a reloc entry */
159 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
160 cache_ptr->addend = ext_reloc.r_offset;
162 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
163 reloc_processing(relent, reloc, symbols, abfd, section)
166 reloc_processing (relent, reloc, symbols, abfd, section)
168 struct internal_reloc *reloc;
173 relent->address = reloc->r_vaddr;
174 rtype2howto (relent, reloc);
176 if (reloc->r_symndx > 0)
177 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
179 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
181 relent->addend = reloc->r_offset;
182 relent->address -= section->vma;
185 #ifndef bfd_pe_print_pdata
186 #define bfd_pe_print_pdata NULL
189 #include "coffcode.h"
191 const bfd_target tic30_coff_vec =
193 "coff-tic30", /* name */
194 bfd_target_coff_flavour,
195 BFD_ENDIAN_BIG, /* data byte order is big */
196 BFD_ENDIAN_LITTLE, /* header byte order is little */
198 (HAS_RELOC | EXEC_P | /* object flags */
199 HAS_LINENO | HAS_DEBUG |
200 HAS_SYMS | HAS_LOCALS | WP_TEXT),
202 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
203 '_', /* leading symbol underscore */
204 '/', /* ar_pad_char */
205 15, /* ar_max_namelen */
206 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
207 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
208 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
209 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
210 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
211 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
213 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
214 bfd_generic_archive_p, _bfd_dummy_target},
215 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
217 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
218 _bfd_write_archive_contents, bfd_false},
220 BFD_JUMP_TABLE_GENERIC (coff),
221 BFD_JUMP_TABLE_COPY (coff),
222 BFD_JUMP_TABLE_CORE (_bfd_nocore),
223 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
224 BFD_JUMP_TABLE_SYMBOLS (coff),
225 BFD_JUMP_TABLE_RELOCS (coff),
226 BFD_JUMP_TABLE_WRITE (coff),
227 BFD_JUMP_TABLE_LINK (coff),
228 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),