1 /* BFD back-end for Zilog Z800n COFF binaries.
2 Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 #include "coff/internal.h"
31 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
33 static reloc_howto_type r_imm32 =
34 HOWTO (R_IMM32, 0, 1, 32, false, 0,
35 complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff,
38 static reloc_howto_type r_imm4l =
39 HOWTO (R_IMM4L, 0, 1, 4, false, 0,
40 complain_overflow_bitfield, 0, "r_imm4l", true, 0xf, 0xf, false);
42 static reloc_howto_type r_da =
43 HOWTO (R_IMM16, 0, 1, 16, false, 0,
44 complain_overflow_bitfield, 0, "r_da", true, 0x0000ffff, 0x0000ffff,
47 static reloc_howto_type r_imm8 =
48 HOWTO (R_IMM8, 0, 1, 8, false, 0,
49 complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff,
52 static reloc_howto_type r_rel16 =
53 HOWTO (R_REL16, 0, 1, 16, false, 0,
54 complain_overflow_bitfield, 0, "r_rel16", true, 0x0000ffff, 0x0000ffff,
57 static reloc_howto_type r_jr =
58 HOWTO (R_JR, 0, 1, 8, true, 0, complain_overflow_signed, 0,
59 "r_jr", true, 0, 0, true);
61 static reloc_howto_type r_disp7 =
62 HOWTO (R_DISP7, 0, 1, 7, true, 0, complain_overflow_bitfield, 0,
63 "r_disp7", true, 0, 0, true);
65 static reloc_howto_type r_callr =
66 HOWTO (R_CALLR, 0, 1, 12, true, 0, complain_overflow_signed, 0,
67 "r_callr", true, 0xfff, 0xfff, true);
69 /* Turn a howto into a reloc number */
72 coff_z8k_select_reloc (howto)
73 reloc_howto_type *howto;
78 #define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto)
80 #define BADMAG(x) Z8KBADMAG(x)
81 #define Z8K 1 /* Customize coffcode.h */
82 #define __A_MAGIC_SET__
84 /* Code to swap in the reloc */
85 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
86 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
87 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
88 dst->r_stuff[0] = 'S'; \
89 dst->r_stuff[1] = 'C';
91 /* Code to turn a r_type into a howto ptr, uses the above howto table
95 rtype2howto (internal, dst)
97 struct internal_reloc *dst;
105 internal->howto = &r_imm8;
108 internal->howto = &r_da;
111 internal->howto = &r_jr;
114 internal->howto = &r_disp7;
117 internal->howto = &r_callr;
120 internal->howto = &r_rel16;
123 internal->howto = &r_imm32;
126 internal->howto = &r_imm4l;
131 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
133 /* Perform any necessary magic to the addend in a reloc entry */
135 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
136 cache_ptr->addend = ext_reloc.r_offset;
138 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
139 reloc_processing(relent, reloc, symbols, abfd, section)
142 reloc_processing (relent, reloc, symbols, abfd, section)
144 struct internal_reloc *reloc;
149 relent->address = reloc->r_vaddr;
150 rtype2howto (relent, reloc);
152 if (reloc->r_symndx > 0)
154 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
158 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
161 relent->addend = reloc->r_offset;
162 relent->address -= section->vma;
166 extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
168 struct bfd_link_info *link_info;
169 struct bfd_link_order *link_order;
172 unsigned int *src_ptr;
173 unsigned int *dst_ptr;
175 asection *input_section = link_order->u.indirect.section;
177 switch (reloc->howto->type)
181 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
189 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
197 ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
199 & bfd_coff_reloc16_get_value (reloc, link_info,
208 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
216 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
218 bfd_vma dot = (link_order->offset
220 + input_section->output_section->vma);
221 int gap = dst - dot - 1;/* -1 since were in the odd byte of the
222 word and the pc's been incremented */
227 if (gap > 128 || gap < -128)
229 if (! ((*link_info->callbacks->reloc_overflow)
230 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
231 reloc->howto->name, reloc->addend, input_section->owner,
232 input_section, reloc->address)))
235 bfd_put_8 (in_abfd, gap, data + *dst_ptr);
243 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
245 bfd_vma dot = (link_order->offset
247 + input_section->output_section->vma);
248 int gap = dst - dot - 1;/* -1 since were in the odd byte of the
249 word and the pc's been incremented */
255 if (gap > 0 || gap < -128)
257 if (! ((*link_info->callbacks->reloc_overflow)
258 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
259 reloc->howto->name, reloc->addend, input_section->owner,
260 input_section, reloc->address)))
264 (bfd_get_8 ( in_abfd, data + *dst_ptr) & 0x80) + (-gap & 0x7f),
273 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
275 bfd_vma dot = (link_order->offset
277 + input_section->output_section->vma);
278 int gap = dst - dot - 2;
283 if (gap > 8191 || gap < -8192)
285 if (! ((*link_info->callbacks->reloc_overflow)
286 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
287 reloc->howto->name, reloc->addend, input_section->owner,
288 input_section, reloc->address)))
292 (bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff),
301 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
303 bfd_vma dot = (link_order->offset
305 + input_section->output_section->vma);
306 int gap = dst - dot - 2;
308 if (gap > 32767 || gap < -32768)
310 if (! ((*link_info->callbacks->reloc_overflow)
311 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
312 reloc->howto->name, reloc->addend, input_section->owner,
313 input_section, reloc->address)))
316 bfd_put_16 (in_abfd,gap,data + *dst_ptr);
326 #define coff_reloc16_extra_cases extra_case
328 #include "coffcode.h"
330 #undef coff_bfd_get_relocated_section_contents
331 #undef coff_bfd_relax_section
332 #define coff_bfd_get_relocated_section_contents \
333 bfd_coff_reloc16_get_relocated_section_contents
334 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section
336 CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL)