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();
156 extra_case(in_abfd
, seclet
, reloc
, data
, src_ptr
, dst_ptr
)
158 bfd_seclet_type
*seclet
;
161 unsigned int *src_ptr
;
162 unsigned int *dst_ptr
;
164 switch (reloc
->howto
->type
)
167 bfd_put_16(in_abfd
, get_value(reloc
, seclet
), data
+*dst_ptr
);
173 bfd_vma dst
= get_value(reloc
,seclet
);
174 bfd_vma dot
= seclet
->offset
176 + seclet
->u
.indirect
.section
->output_section
->vma
;
177 int gap
= dst
- dot
- 1 ; /* -1 since were in the odd byte of the
182 if (gap
> 128 || gap
< -128)
184 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
186 bfd_put_8(in_abfd
, gap
, data
+*dst_ptr
);
195 #define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
200 #include "coffcode.h"
203 #undef coff_bfd_get_relocated_section_contents
204 #undef coff_bfd_relax_section
205 #define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
206 #define coff_bfd_relax_section bfd_coff_relax_section
208 bfd_target z8kcoff_vec
=
210 "coff-z8k", /* name */
211 bfd_target_coff_flavour
,
212 true, /* data byte order is big */
213 true, /* header byte order is big */
215 (HAS_RELOC
| EXEC_P
| /* object flags */
216 HAS_LINENO
| HAS_DEBUG
|
217 HAS_SYMS
| HAS_LOCALS
| DYNAMIC
| WP_TEXT
),
219 ( SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
220 '_', /* leading symbol underscore */
221 '/', /* ar_pad_char */
222 15, /* ar_max_namelen */
223 1, /* minimum section alignment */
224 _do_getb64
, _do_putb64
, _do_getb32
, _do_putb32
, _do_getb16
, _do_putb16
, /* data */
225 _do_getb64
, _do_putb64
, _do_getb32
, _do_putb32
, _do_getb16
, _do_putb16
, /* hdrs */
227 {_bfd_dummy_target
, coff_object_p
, /* bfd_check_format */
228 bfd_generic_archive_p
, _bfd_dummy_target
},
229 {bfd_false
, coff_mkobject
, _bfd_generic_mkarchive
, /* bfd_set_format */
231 {bfd_false
, coff_write_object_contents
, /* bfd_write_contents */
232 _bfd_write_archive_contents
, bfd_false
},