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"
31 extern bfd_error_vector_type bfd_error_vector
;
35 static reloc_howto_type r_da
=
36 HOWTO(R_DA
, 0, 1, 16, false, 0, true,
37 true,func_da
,"r_da", true, 0x0000ffff,0x0000ffff, false);
39 static reloc_howto_type r_jr
=
40 HOWTO(R_JR
, 0,1,8,true,0,true,true,func_jr
,"r_jr", true,0,0,true);
46 /* Turn a howto into a reloc number */
48 static int coff_z8k_select_reloc(howto
)
49 reloc_howto_type
*howto
;
53 #define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto)
56 #define BADMAG(x) Z8KBADMAG(x)
57 #define Z8K 1 /* Customize coffcode.h */
58 #define __A_MAGIC_SET__
62 /* Code to swap in the reloc */
63 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
64 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
65 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
66 dst->r_stuff[0] = 'S'; \
67 dst->r_stuff[1] = 'C';
69 /* Code to turn a r_type into a howto ptr, uses the above howto table
73 DEFUN(rtype2howto
,(internal
, dst
),
75 struct internal_reloc
*dst
)
77 switch (dst
->r_type
) {
79 printf("BAD %x\n", dst
->r_type
);
81 internal
->howto
= &r_da
;
84 internal
->howto
= &r_jr
;
88 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
91 /* Perform any necessaru magic to the addend in a reloc entry */
94 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
95 cache_ptr->addend = ext_reloc.r_offset;
98 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
99 reloc_processing(relent, reloc, symbols, abfd, section)
101 static void DEFUN(reloc_processing
,(relent
,reloc
, symbols
, abfd
, section
) ,
103 struct internal_reloc
*reloc AND
104 asymbol
**symbols AND
108 relent
->address
= reloc
->r_vaddr
;
109 rtype2howto(relent
,reloc
);
111 if (reloc
->r_symndx
> 0)
114 relent
->sym_ptr_ptr
= symbols
+ obj_convert(abfd
)[reloc
->r_symndx
];
119 relent
->sym_ptr_ptr
= &(bfd_abs_symbol
);
124 relent
->addend
= reloc
->r_offset
;
126 relent
->address
-= section
->vma
;
127 /* relent->section = 0;*/
130 static bfd_vma
get_value();
132 extra_case(in_abfd
, seclet
, reloc
, data
, src_ptr
, dst_ptr
)
134 bfd_seclet_type
*seclet
;
137 unsigned int *src_ptr
;
138 unsigned int *dst_ptr
;
140 switch (reloc
->howto
->type
)
143 bfd_put_16(in_abfd
, get_value(reloc
, seclet
), data
+*dst_ptr
);
149 bfd_vma dst
= get_value(reloc
,seclet
);
150 bfd_vma dot
= seclet
->offset
152 + seclet
->u
.indirect
.section
->output_section
->vma
;
153 int gap
= dst
- dot
- 1 ; /* -1 since were in the odd byte of the
158 if (gap
> 128 || gap
< -128)
160 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
162 bfd_put_8(in_abfd
, gap
, data
+*dst_ptr
);
171 #define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
176 #include "coffcode.h"
179 #undef coff_bfd_get_relocated_section_contents
180 #undef coff_bfd_relax_section
181 #define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
182 #define coff_bfd_relax_section bfd_coff_relax_section
184 bfd_target z8kcoff_vec
=
186 "coff-z8k", /* name */
187 bfd_target_coff_flavour
,
188 true, /* data byte order is big */
189 true, /* header byte order is big */
191 (HAS_RELOC
| EXEC_P
| /* object flags */
192 HAS_LINENO
| HAS_DEBUG
|
193 HAS_SYMS
| HAS_LOCALS
| DYNAMIC
| WP_TEXT
),
195 ( SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
196 '/', /* ar_pad_char */
197 15, /* ar_max_namelen */
198 1, /* minimum section alignment */
199 _do_getb64
, _do_putb64
, _do_getb32
, _do_putb32
, _do_getb16
, _do_putb16
, /* data */
200 _do_getb64
, _do_putb64
, _do_getb32
, _do_putb32
, _do_getb16
, _do_putb16
, /* hdrs */
202 {_bfd_dummy_target
, coff_object_p
, /* bfd_check_format */
203 bfd_generic_archive_p
, _bfd_dummy_target
},
204 {bfd_false
, coff_mkobject
, _bfd_generic_mkarchive
, /* bfd_set_format */
206 {bfd_false
, coff_write_object_contents
, /* bfd_write_contents */
207 _bfd_write_archive_contents
, bfd_false
},