1 /* Zilog Z800n COFF back-end for BFD.
2 Copyright (C) 1992 Free Software Foundation, Inc.
3 Written by Steve Chamberlain
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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
28 #include "coff/internal.h"
32 extern bfd_error_vector_type bfd_error_vector;
35 static bfd_reloc_status_type
36 DEFUN(func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
38 arelent *reloc_entry AND
39 struct symbol_cache_entry *symbol AND
41 asection *input_section AND
47 static bfd_reloc_status_type
48 DEFUN(func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
50 arelent *reloc_entry AND
51 struct symbol_cache_entry *symbol AND
53 asection *input_section AND
58 static reloc_howto_type r_da =
59 HOWTO(R_DA , 0, 1, 16, false, 0, true,
60 true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false);
62 static reloc_howto_type r_jr =
63 HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true);
69 /* Turn a howto into a reloc number */
71 static int coff_z8k_select_reloc(howto)
72 reloc_howto_type *howto;
76 #define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto)
79 #define BADMAG(x) Z8KBADMAG(x)
80 #define Z8K 1 /* Customize coffcode.h */
81 #define __A_MAGIC_SET__
85 /* Code to swap in the reloc */
86 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
87 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
88 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
89 dst->r_stuff[0] = 'S'; \
90 dst->r_stuff[1] = 'C';
92 /* Code to turn a r_type into a howto ptr, uses the above howto table
96 DEFUN(rtype2howto,(internal, dst),
98 struct internal_reloc *dst)
100 switch (dst->r_type) {
102 printf("BAD %x\n", dst->r_type);
104 internal->howto = &r_da;
107 internal->howto = &r_jr;
111 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
114 /* Perform any necessaru magic to the addend in a reloc entry */
117 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
118 cache_ptr->addend = ext_reloc.r_offset;
121 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
122 reloc_processing(relent, reloc, symbols, abfd, section)
124 static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
126 struct internal_reloc *reloc AND
127 asymbol **symbols AND
131 relent->address = reloc->r_vaddr;
132 rtype2howto(relent,reloc);
134 if (reloc->r_symndx > 0)
137 relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
142 relent->sym_ptr_ptr = &(bfd_abs_symbol);
147 relent->addend = reloc->r_offset;
149 relent->address-= section->vma;
150 /* relent->section = 0;*/
153 static bfd_vma get_value();
155 extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
157 bfd_seclet_type *seclet;
160 unsigned int *src_ptr;
161 unsigned int *dst_ptr;
163 switch (reloc->howto->type)
166 bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr);
172 bfd_vma dst = get_value(reloc,seclet);
173 bfd_vma dot = seclet->offset
175 + seclet->u.indirect.section->output_section->vma;
176 int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the
181 if (gap > 128 || gap< -128)
183 bfd_error_vector.reloc_value_truncated(reloc, seclet);
185 bfd_put_8(in_abfd, gap, data+*dst_ptr);
194 #define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
199 #include "coffcode.h"
202 #undef coff_bfd_get_relocated_section_contents
203 #undef coff_bfd_relax_section
204 #define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
205 #define coff_bfd_relax_section bfd_coff_relax_section
207 bfd_target z8kcoff_vec =
209 "coff-z8k", /* name */
210 bfd_target_coff_flavour,
211 true, /* data byte order is big */
212 true, /* header byte order is big */
214 (HAS_RELOC | EXEC_P | /* object flags */
215 HAS_LINENO | HAS_DEBUG |
216 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
218 ( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
219 '_', /* leading symbol underscore */
220 '/', /* ar_pad_char */
221 15, /* ar_max_namelen */
222 1, /* minimum section alignment */
223 _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
224 _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
226 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
227 bfd_generic_archive_p, _bfd_dummy_target},
228 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
230 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
231 _bfd_write_archive_contents, bfd_false},