1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
4 Contributed by the Center for Software Science at the
5 University of Utah (pa-gdb-bugs@cs.utah.edu).
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD)
33 #include <sys/types.h>
34 #include <sys/param.h>
37 #include <machine/reg.h>
38 #include <sys/user.h> /* After a.out.h */
42 /* Magic not defined in standard HP-UX header files until 8.0 */
44 #ifndef CPU_PA_RISC1_0
45 #define CPU_PA_RISC1_0 0x20B
46 #endif /* CPU_PA_RISC1_0 */
48 #ifndef CPU_PA_RISC1_1
49 #define CPU_PA_RISC1_1 0x210
50 #endif /* CPU_PA_RISC1_1 */
52 #ifndef _PA_RISC1_0_ID
53 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
54 #endif /* _PA_RISC1_0_ID */
56 #ifndef _PA_RISC1_1_ID
57 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
58 #endif /* _PA_RISC1_1_ID */
60 #ifndef _PA_RISC_MAXID
61 #define _PA_RISC_MAXID 0x2FF
62 #endif /* _PA_RISC_MAXID */
65 #define _PA_RISC_ID(__m_num) \
66 (((__m_num) == _PA_RISC1_0_ID) || \
67 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
68 #endif /* _PA_RISC_ID */
70 /* Size (in chars) of the temporary buffers used during fixup and string
73 #define SOM_TMP_BUFSIZE 8192
76 /* SOM allows any one of the four previous relocations to be reused
77 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
78 relocations are always a single byte, using a R_PREV_FIXUP instead
79 of some multi-byte relocation makes object files smaller.
81 Note one side effect of using a R_PREV_FIXUP is the relocation that
82 is being repeated moves to the front of the queue. */
89 /* This fully describes the symbol types which may be attached to
90 an EXPORT or IMPORT directive. Only SOM uses this formation
91 (ELF has no need for it). */
99 SYMBOL_TYPE_MILLICODE
,
101 SYMBOL_TYPE_PRI_PROG
,
102 SYMBOL_TYPE_SEC_PROG
,
105 /* Forward declarations */
107 static boolean som_mkobject
PARAMS ((bfd
*));
108 static bfd_target
* som_object_setup
PARAMS ((bfd
*,
110 struct som_exec_auxhdr
*));
111 static asection
* make_unique_section
PARAMS ((bfd
*, CONST
char *, int));
112 static boolean setup_sections
PARAMS ((bfd
*, struct header
*));
113 static bfd_target
* som_object_p
PARAMS ((bfd
*));
114 static boolean som_write_object_contents
PARAMS ((bfd
*));
115 static boolean som_slurp_string_table
PARAMS ((bfd
*));
116 static unsigned int som_slurp_symbol_table
PARAMS ((bfd
*));
117 static unsigned int som_get_symtab_upper_bound
PARAMS ((bfd
*));
118 static unsigned int som_canonicalize_reloc
PARAMS ((bfd
*, sec_ptr
,
119 arelent
**, asymbol
**));
120 static unsigned int som_get_reloc_upper_bound
PARAMS ((bfd
*, sec_ptr
));
121 static unsigned int som_get_symtab
PARAMS ((bfd
*, asymbol
**));
122 static asymbol
* som_make_empty_symbol
PARAMS ((bfd
*));
123 static void som_print_symbol
PARAMS ((bfd
*, PTR
,
124 asymbol
*, bfd_print_symbol_type
));
125 static boolean som_new_section_hook
PARAMS ((bfd
*, asection
*));
126 static boolean som_set_section_contents
PARAMS ((bfd
*, sec_ptr
, PTR
,
127 file_ptr
, bfd_size_type
));
128 static boolean som_set_arch_mach
PARAMS ((bfd
*, enum bfd_architecture
,
130 static boolean som_find_nearest_line
PARAMS ((bfd
*, asection
*,
135 static void som_get_symbol_info
PARAMS ((bfd
*, asymbol
*, symbol_info
*));
136 static asection
* som_section_from_subspace_index
PARAMS ((bfd
*,
138 static int log2
PARAMS ((unsigned int));
139 static bfd_reloc_status_type hppa_som_reloc
PARAMS ((bfd
*, arelent
*,
142 static void som_initialize_reloc_queue
PARAMS ((struct reloc_queue
*));
143 static void som_reloc_queue_insert
PARAMS ((unsigned char *, unsigned int,
144 struct reloc_queue
*));
145 static void som_reloc_queue_fix
PARAMS ((struct reloc_queue
*, unsigned int));
146 static int som_reloc_queue_find
PARAMS ((unsigned char *, unsigned int,
147 struct reloc_queue
*));
148 static unsigned char * try_prev_fixup
PARAMS ((bfd
*, int *, unsigned char *,
150 struct reloc_queue
*));
152 static unsigned char * som_reloc_skip
PARAMS ((bfd
*, unsigned int,
153 unsigned char *, unsigned int *,
154 struct reloc_queue
*));
155 static unsigned char * som_reloc_addend
PARAMS ((bfd
*, int, unsigned char *,
157 struct reloc_queue
*));
158 static unsigned char * som_reloc_call
PARAMS ((bfd
*, unsigned char *,
161 struct reloc_queue
*));
162 static unsigned long som_count_spaces
PARAMS ((bfd
*));
163 static unsigned long som_count_subspaces
PARAMS ((bfd
*));
164 static int compare_syms
PARAMS ((asymbol
**, asymbol
**));
165 static unsigned long som_compute_checksum
PARAMS ((bfd
*));
166 static boolean som_prep_headers
PARAMS ((bfd
*));
167 static int som_sizeof_headers
PARAMS ((bfd
*, boolean
));
168 static boolean som_write_headers
PARAMS ((bfd
*));
169 static boolean som_build_and_write_symbol_table
PARAMS ((bfd
*));
170 static void som_prep_for_fixups
PARAMS ((bfd
*, asymbol
**, unsigned long));
171 static boolean som_write_fixups
PARAMS ((bfd
*, unsigned long, unsigned int *));
172 static boolean som_write_space_strings
PARAMS ((bfd
*, unsigned long,
174 static boolean som_write_symbol_strings
PARAMS ((bfd
*, unsigned long,
175 asymbol
**, unsigned int,
177 static boolean som_begin_writing
PARAMS ((bfd
*));
179 static reloc_howto_type som_hppa_howto_table
[] =
181 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
182 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
183 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
184 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
185 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
186 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
187 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
188 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
189 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
190 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
191 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
192 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
193 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
194 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
195 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
196 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
197 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
198 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
199 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
200 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
201 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
202 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
203 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
204 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
205 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
206 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
207 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
208 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
209 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
210 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
211 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
212 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
213 {R_ZEROES
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ZEROES"},
214 {R_ZEROES
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ZEROES"},
215 {R_UNINIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_UNINIT"},
216 {R_UNINIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_UNINIT"},
217 {R_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RELOCATION"},
218 {R_DATA_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_ONE_SYMBOL"},
219 {R_DATA_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_ONE_SYMBOL"},
220 {R_DATA_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_PLABEL"},
221 {R_DATA_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_PLABEL"},
222 {R_SPACE_REF
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_SPACE_REF"},
223 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
224 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
225 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
226 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
227 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
228 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
229 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
230 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
231 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
232 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
233 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
234 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
235 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
236 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
237 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
238 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
239 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
240 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
241 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
242 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
243 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
244 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
245 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
246 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
247 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
248 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
249 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
250 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
251 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
252 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
253 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
254 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
255 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
256 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
257 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
258 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
259 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
260 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
261 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
262 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
263 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
264 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
265 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
266 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
267 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
268 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
269 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
270 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
271 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
272 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
273 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
274 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
275 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
276 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
277 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
278 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
279 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
280 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
281 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
282 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
283 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
284 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
285 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
286 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
287 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
288 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
289 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
290 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
291 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
292 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
293 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
294 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
295 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
296 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
297 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
298 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
299 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
300 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
301 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
302 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
303 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
304 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
305 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
306 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
307 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
308 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
309 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
310 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
311 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
312 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
313 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
314 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
315 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
316 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
317 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
318 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
319 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
320 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
321 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
322 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
323 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
324 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
325 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
326 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
327 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
328 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
329 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
330 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
331 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
332 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
333 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
334 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
335 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
336 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
337 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
338 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
339 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
340 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
341 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
342 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
343 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
344 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
345 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
346 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
347 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
348 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
349 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
350 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
351 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
352 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
353 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
354 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
355 {R_MILLI_REL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_MILLI_REL"},
356 {R_MILLI_REL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_MILLI_REL"},
357 {R_CODE_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_PLABEL"},
358 {R_CODE_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_PLABEL"},
359 {R_BREAKPOINT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BREAKPOINT"},
360 {R_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ENTRY"},
361 {R_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ENTRY"},
362 {R_ALT_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ALT_ENTRY"},
363 {R_EXIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_EXIT"},
364 {R_BEGIN_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BEGIN_TRY"},
365 {R_END_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_TRY"},
366 {R_END_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_TRY"},
367 {R_BEGIN_BRTAB
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BEGIN_BRTAB"},
368 {R_END_BRTAB
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_BRTAB"},
369 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
370 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
371 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
372 {R_DATA_EXPR
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_EXPR"},
373 {R_CODE_EXPR
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_EXPR"},
374 {R_FSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_FSEL"},
375 {R_LSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_LSEL"},
376 {R_RSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RSEL"},
377 {R_N_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_N_MODE"},
378 {R_S_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_S_MODE"},
379 {R_D_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_D_MODE"},
380 {R_R_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_R_MODE"},
381 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
382 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
383 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
384 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
385 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
386 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
387 {R_TRANSLATED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_TRANSLATED"},
388 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
389 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
390 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
391 {R_COMP1
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP1"},
392 {R_COMP2
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP2"},
393 {R_COMP3
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP3"},
394 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
395 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
396 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
397 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
398 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
399 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
400 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
401 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
402 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
403 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
404 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
405 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
406 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
407 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
408 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
409 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
410 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
411 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
412 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
413 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
414 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
415 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
416 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
417 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
418 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
419 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
420 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
421 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
422 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
423 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
424 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
425 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
426 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
427 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
428 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
429 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
430 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
431 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
432 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
433 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
434 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
435 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
436 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
437 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
438 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"}};
441 /* Initialize the SOM relocation queue. By definition the queue holds
442 the last four multibyte fixups. */
445 som_initialize_reloc_queue (queue
)
446 struct reloc_queue
*queue
;
448 queue
[0].reloc
= NULL
;
450 queue
[1].reloc
= NULL
;
452 queue
[2].reloc
= NULL
;
454 queue
[3].reloc
= NULL
;
458 /* Insert a new relocation into the relocation queue. */
461 som_reloc_queue_insert (p
, size
, queue
)
464 struct reloc_queue
*queue
;
466 queue
[3].reloc
= queue
[2].reloc
;
467 queue
[3].size
= queue
[2].size
;
468 queue
[2].reloc
= queue
[1].reloc
;
469 queue
[2].size
= queue
[1].size
;
470 queue
[1].reloc
= queue
[0].reloc
;
471 queue
[1].size
= queue
[0].size
;
473 queue
[0].size
= size
;
476 /* When an entry in the relocation queue is reused, the entry moves
477 to the front of the queue. */
480 som_reloc_queue_fix (queue
, index
)
481 struct reloc_queue
*queue
;
489 unsigned char *tmp1
= queue
[0].reloc
;
490 unsigned int tmp2
= queue
[0].size
;
491 queue
[0].reloc
= queue
[1].reloc
;
492 queue
[0].size
= queue
[1].size
;
493 queue
[1].reloc
= tmp1
;
494 queue
[1].size
= tmp2
;
500 unsigned char *tmp1
= queue
[0].reloc
;
501 unsigned int tmp2
= queue
[0].size
;
502 queue
[0].reloc
= queue
[2].reloc
;
503 queue
[0].size
= queue
[2].size
;
504 queue
[2].reloc
= queue
[1].reloc
;
505 queue
[2].size
= queue
[1].size
;
506 queue
[1].reloc
= tmp1
;
507 queue
[1].size
= tmp2
;
513 unsigned char *tmp1
= queue
[0].reloc
;
514 unsigned int tmp2
= queue
[0].size
;
515 queue
[0].reloc
= queue
[3].reloc
;
516 queue
[0].size
= queue
[3].size
;
517 queue
[3].reloc
= queue
[2].reloc
;
518 queue
[3].size
= queue
[2].size
;
519 queue
[2].reloc
= queue
[1].reloc
;
520 queue
[2].size
= queue
[1].size
;
521 queue
[1].reloc
= tmp1
;
522 queue
[1].size
= tmp2
;
528 /* Search for a particular relocation in the relocation queue. */
531 som_reloc_queue_find (p
, size
, queue
)
534 struct reloc_queue
*queue
;
536 if (!bcmp (p
, queue
[0].reloc
, size
)
537 && size
== queue
[0].size
)
539 if (!bcmp (p
, queue
[1].reloc
, size
)
540 && size
== queue
[1].size
)
542 if (!bcmp (p
, queue
[2].reloc
, size
)
543 && size
== queue
[2].size
)
545 if (!bcmp (p
, queue
[3].reloc
, size
)
546 && size
== queue
[3].size
)
551 static unsigned char *
552 try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, size
, queue
)
554 int *subspace_reloc_sizep
;
557 struct reloc_queue
*queue
;
559 int queue_index
= som_reloc_queue_find (p
, size
, queue
);
561 if (queue_index
!= -1)
563 /* Found this in a previous fixup. Undo the fixup we
564 just built and use R_PREV_FIXUP instead. We saved
565 a total of size - 1 bytes in the fixup stream. */
566 bfd_put_8 (abfd
, R_PREV_FIXUP
+ queue_index
, p
);
568 *subspace_reloc_sizep
+= 1;
569 som_reloc_queue_fix (queue
, queue_index
);
573 som_reloc_queue_insert (p
, size
, queue
);
574 *subspace_reloc_sizep
+= size
;
580 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
581 bytes without any relocation. Update the size of the subspace
582 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
583 current pointer into the relocation stream. */
585 static unsigned char *
586 som_reloc_skip (abfd
, skip
, p
, subspace_reloc_sizep
, queue
)
590 unsigned int *subspace_reloc_sizep
;
591 struct reloc_queue
*queue
;
593 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
594 then R_PREV_FIXUPs to get the difference down to a
596 if (skip
>= 0x1000000)
599 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 31, p
);
600 bfd_put_8 (abfd
, 0xff, p
+ 1);
601 bfd_put_16 (abfd
, 0xffff, p
+ 2);
602 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
603 while (skip
>= 0x1000000)
606 bfd_put_8 (abfd
, R_PREV_FIXUP
, p
);
608 *subspace_reloc_sizep
+= 1;
609 /* No need to adjust queue here since we are repeating the
610 most recent fixup. */
614 /* The difference must be less than 0x1000000. Use one
615 more R_NO_RELOCATION entry to get to the right difference. */
616 if ((skip
& 3) == 0 && skip
<= 0xc0000 && skip
> 0)
618 /* Difference can be handled in a simple single-byte
619 R_NO_RELOCATION entry. */
622 bfd_put_8 (abfd
, R_NO_RELOCATION
+ (skip
>> 2) - 1, p
);
623 *subspace_reloc_sizep
+= 1;
626 /* Handle it with a two byte R_NO_RELOCATION entry. */
627 else if (skip
<= 0x1000)
629 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 24 + (((skip
>> 2) - 1) >> 8), p
);
630 bfd_put_8 (abfd
, (skip
>> 2) - 1, p
+ 1);
631 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
633 /* Handle it with a three byte R_NO_RELOCATION entry. */
636 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 28 + (((skip
>> 2) - 1) >> 16), p
);
637 bfd_put_16 (abfd
, (skip
>> 2) - 1, p
+ 1);
638 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
641 /* Ugh. Punt and use a 4 byte entry. */
644 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 31, p
);
645 bfd_put_8 (abfd
, skip
>> 16, p
+ 1);
646 bfd_put_16 (abfd
, skip
, p
+ 2);
647 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
652 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
653 from a BFD relocation. Update the size of the subspace relocation
654 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
655 into the relocation stream. */
657 static unsigned char *
658 som_reloc_addend (abfd
, addend
, p
, subspace_reloc_sizep
, queue
)
662 unsigned int *subspace_reloc_sizep
;
663 struct reloc_queue
*queue
;
665 if ((unsigned)(addend
) + 0x80 < 0x100)
667 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 1, p
);
668 bfd_put_8 (abfd
, addend
, p
+ 1);
669 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
671 else if ((unsigned) (addend
) + 0x8000 < 0x10000)
673 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 2, p
);
674 bfd_put_16 (abfd
, addend
, p
+ 1);
675 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
677 else if ((unsigned) (addend
) + 0x800000 < 0x1000000)
679 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 3, p
);
680 bfd_put_8 (abfd
, addend
>> 16, p
+ 1);
681 bfd_put_16 (abfd
, addend
, p
+ 2);
682 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
686 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 4, p
);
687 bfd_put_32 (abfd
, addend
, p
+ 1);
688 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 5, queue
);
693 /* Handle a single function call relocation. */
695 static unsigned char *
696 som_reloc_call (abfd
, p
, subspace_reloc_sizep
, bfd_reloc
, sym_num
, queue
)
699 unsigned int *subspace_reloc_sizep
;
702 struct reloc_queue
*queue
;
704 int arg_bits
= HPPA_R_ARG_RELOC (bfd_reloc
->addend
);
705 int rtn_bits
= arg_bits
& 0x3;
708 /* You'll never believe all this is necessary to handle relocations
709 for function calls. Having to compute and pack the argument
710 relocation bits is the real nightmare.
712 If you're interested in how this works, just forget it. You really
713 do not want to know about this braindamage. */
715 /* First see if this can be done with a "simple" relocation. Simple
716 relocations have a symbol number < 0x100 and have simple encodings
717 of argument relocations. */
731 case 1 << 8 | 1 << 6:
732 case 1 << 8 | 1 << 6 | 1:
735 case 1 << 8 | 1 << 6 | 1 << 4:
736 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
739 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
740 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
744 /* Not one of the easy encodings. This will have to be
745 handled by the more complex code below. */
751 /* Account for the return value too. */
755 /* Emit a 2 byte relocation. Then see if it can be handled
756 with a relocation which is already in the relocation queue. */
757 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ type
, p
);
758 bfd_put_8 (abfd
, sym_num
, p
+ 1);
759 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
764 /* If this could not be handled with a simple relocation, then do a hard
765 one. Hard relocations occur if the symbol number was too high or if
766 the encoding of argument relocation bits is too complex. */
769 /* Don't ask about these magic sequences. I took them straight
770 from gas-1.36 which took them from the a.out man page. */
772 if ((arg_bits
>> 6 & 0xf) == 0xe)
775 type
+= (3 * (arg_bits
>> 8 & 3) + (arg_bits
>> 6 & 3)) * 40;
776 if ((arg_bits
>> 2 & 0xf) == 0xe)
779 type
+= (3 * (arg_bits
>> 4 & 3) + (arg_bits
>> 2 & 3)) * 4;
781 /* Output the first two bytes of the relocation. These describe
782 the length of the relocation and encoding style. */
783 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 10
784 + 2 * (sym_num
>= 0x100) + (type
>= 0x100),
786 bfd_put_8 (abfd
, type
, p
+ 1);
788 /* Now output the symbol index and see if this bizarre relocation
789 just happened to be in the relocation queue. */
792 bfd_put_8 (abfd
, sym_num
, p
+ 2);
793 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
797 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 2);
798 bfd_put_16 (abfd
, sym_num
, p
+ 3);
799 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 5, queue
);
806 /* Return the logarithm of X, base 2, considering X unsigned.
807 Abort if X is not a power of two -- this should never happen (FIXME:
808 It will happen on corrupt executables. GDB should give an error, not
809 a coredump, in that case). */
817 /* Test for 0 or a power of 2. */
818 if (x
== 0 || x
!= (x
& -x
))
821 while ((x
>>= 1) != 0)
826 static bfd_reloc_status_type
827 hppa_som_reloc (abfd
, reloc_entry
, symbol_in
, data
, input_section
, output_bfd
)
829 arelent
*reloc_entry
;
832 asection
*input_section
;
837 reloc_entry
->address
+= input_section
->output_offset
;
843 /* Given a generic HPPA relocation type, the instruction format,
844 and a field selector, return an appropriate SOM reloation.
846 FIXME. Need to handle %RR, %LR and the like as field selectors.
847 These will need to generate multiple SOM relocations. */
850 hppa_som_gen_reloc_type (abfd
, base_type
, format
, field
)
856 int *final_type
, **final_types
;
858 final_types
= (int **) bfd_alloc_by_size_t (abfd
, sizeof (int *) * 2);
859 final_type
= (int *) bfd_alloc_by_size_t (abfd
, sizeof (int));
862 final_types
[0] = final_type
;
863 final_types
[1] = NULL
;
865 /* Default to the basic relocation passed in. */
866 *final_type
= base_type
;
871 /* PLABELs get their own relocation type. */
876 /* A PLABEL relocation that has a size of 32 bits must
877 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
879 *final_type
= R_DATA_PLABEL
;
881 *final_type
= R_CODE_PLABEL
;
883 /* A relocatoin in the data space is always a full 32bits. */
884 else if (format
== 32)
885 *final_type
= R_DATA_ONE_SYMBOL
;
890 /* More PLABEL special cases. */
894 *final_type
= R_DATA_PLABEL
;
898 case R_HPPA_ABS_CALL
:
899 case R_HPPA_PCREL_CALL
:
901 case R_HPPA_COMPLEX_PCREL_CALL
:
902 case R_HPPA_COMPLEX_ABS_CALL
:
903 /* Right now we can default all these. */
909 /* Return the address of the correct entry in the PA SOM relocation
912 static reloc_howto_type
*
913 som_bfd_reloc_type_lookup (arch
, code
)
914 bfd_arch_info_type
*arch
;
915 bfd_reloc_code_real_type code
;
917 if ((int) code
< (int) R_NO_RELOCATION
+ 255)
919 BFD_ASSERT ((int) som_hppa_howto_table
[(int) code
].type
== (int) code
);
920 return &som_hppa_howto_table
[(int) code
];
923 return (reloc_howto_type
*) 0;
926 /* Perform some initialization for an object. Save results of this
927 initialization in the BFD. */
930 som_object_setup (abfd
, file_hdrp
, aux_hdrp
)
932 struct header
*file_hdrp
;
933 struct som_exec_auxhdr
*aux_hdrp
;
935 asection
*text
, *data
, *bss
;
937 /* som_mkobject will set bfd_error if som_mkobject fails. */
938 if (som_mkobject (abfd
) != true)
941 /* Make the standard .text, .data, and .bss sections so that tools
942 which assume those names work (size for example). They will have
943 no contents, but the sizes and such will reflect those of the
944 $CODE$, $DATA$, and $BSS$ subspaces respectively.
946 FIXME: Should check return status from bfd_make_section calls below. */
948 text
= bfd_make_section (abfd
, ".text");
949 data
= bfd_make_section (abfd
, ".data");
950 bss
= bfd_make_section (abfd
, ".bss");
952 text
->_raw_size
= aux_hdrp
->exec_tsize
;
953 data
->_raw_size
= aux_hdrp
->exec_dsize
;
954 bss
->_raw_size
= aux_hdrp
->exec_bsize
;
956 text
->flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_CODE
);
957 data
->flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
);
958 bss
->flags
= (SEC_ALLOC
| SEC_IS_COMMON
);
960 /* The virtual memory addresses of the sections */
961 text
->vma
= aux_hdrp
->exec_tmem
;
962 data
->vma
= aux_hdrp
->exec_dmem
;
963 bss
->vma
= aux_hdrp
->exec_bfill
;
965 /* The file offsets of the sections */
966 text
->filepos
= aux_hdrp
->exec_tfile
;
967 data
->filepos
= aux_hdrp
->exec_dfile
;
969 /* The file offsets of the relocation info */
970 text
->rel_filepos
= 0;
971 data
->rel_filepos
= 0;
973 /* Set BFD flags based on what information is available in the SOM. */
974 abfd
->flags
= NO_FLAGS
;
975 if (! file_hdrp
->entry_offset
)
976 abfd
->flags
|= HAS_RELOC
;
978 abfd
->flags
|= EXEC_P
;
979 if (file_hdrp
->symbol_total
)
980 abfd
->flags
|= HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
;
982 bfd_get_start_address (abfd
) = aux_hdrp
->exec_entry
;
983 bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 0);
984 bfd_get_symcount (abfd
) = file_hdrp
->symbol_total
;
986 /* Initialize the saved symbol table and string table to NULL.
987 Save important offsets and sizes from the SOM header into
989 obj_som_stringtab (abfd
) = (char *) NULL
;
990 obj_som_symtab (abfd
) = (som_symbol_type
*) NULL
;
991 obj_som_stringtab_size (abfd
) = file_hdrp
->symbol_strings_size
;
992 obj_som_sym_filepos (abfd
) = file_hdrp
->symbol_location
;
993 obj_som_str_filepos (abfd
) = file_hdrp
->symbol_strings_location
;
994 obj_som_reloc_filepos (abfd
) = file_hdrp
->fixup_request_location
;
999 /* Create a new BFD section for NAME. If NAME already exists, then create a
1000 new unique name, with NAME as the prefix. This exists because SOM .o files
1001 may have more than one $CODE$ subspace. */
1004 make_unique_section (abfd
, name
, num
)
1013 sect
= bfd_make_section (abfd
, name
);
1016 sprintf (altname
, "%s-%d", name
, num
++);
1017 sect
= bfd_make_section (abfd
, altname
);
1020 newname
= bfd_alloc (abfd
, strlen (sect
->name
) + 1);
1021 strcpy (newname
, sect
->name
);
1023 sect
->name
= newname
;
1027 /* Convert all of the space and subspace info into BFD sections. Each space
1028 contains a number of subspaces, which in turn describe the mapping between
1029 regions of the exec file, and the address space that the program runs in.
1030 BFD sections which correspond to spaces will overlap the sections for the
1031 associated subspaces. */
1034 setup_sections (abfd
, file_hdr
)
1036 struct header
*file_hdr
;
1038 char *space_strings
;
1040 unsigned int total_subspaces
= 0;
1042 /* First, read in space names */
1044 space_strings
= alloca (file_hdr
->space_strings_size
);
1048 if (bfd_seek (abfd
, file_hdr
->space_strings_location
, SEEK_SET
) < 0)
1050 if (bfd_read (space_strings
, 1, file_hdr
->space_strings_size
, abfd
)
1051 != file_hdr
->space_strings_size
)
1054 /* Loop over all of the space dictionaries, building up sections */
1055 for (space_index
= 0; space_index
< file_hdr
->space_total
; space_index
++)
1057 struct space_dictionary_record space
;
1058 struct subspace_dictionary_record subspace
, save_subspace
;
1060 asection
*space_asect
;
1062 /* Read the space dictionary element */
1063 if (bfd_seek (abfd
, file_hdr
->space_location
1064 + space_index
* sizeof space
, SEEK_SET
) < 0)
1066 if (bfd_read (&space
, 1, sizeof space
, abfd
) != sizeof space
)
1069 /* Setup the space name string */
1070 space
.name
.n_name
= space
.name
.n_strx
+ space_strings
;
1072 /* Make a section out of it */
1073 space_asect
= make_unique_section (abfd
, space
.name
.n_name
, space_index
);
1077 /* Now, read in the first subspace for this space */
1078 if (bfd_seek (abfd
, file_hdr
->subspace_location
1079 + space
.subspace_index
* sizeof subspace
,
1082 if (bfd_read (&subspace
, 1, sizeof subspace
, abfd
) != sizeof subspace
)
1084 /* Seek back to the start of the subspaces for loop below */
1085 if (bfd_seek (abfd
, file_hdr
->subspace_location
1086 + space
.subspace_index
* sizeof subspace
,
1090 /* Setup the start address and file loc from the first subspace record */
1091 space_asect
->vma
= subspace
.subspace_start
;
1092 space_asect
->filepos
= subspace
.file_loc_init_value
;
1093 space_asect
->alignment_power
= log2 (subspace
.alignment
);
1095 /* Initialize save_subspace so we can reliably determine if this
1096 loop placed any useful values into it. */
1097 bzero (&save_subspace
, sizeof (struct subspace_dictionary_record
));
1099 /* Loop over the rest of the subspaces, building up more sections */
1100 for (subspace_index
= 0; subspace_index
< space
.subspace_quantity
;
1103 asection
*subspace_asect
;
1105 /* Read in the next subspace */
1106 if (bfd_read (&subspace
, 1, sizeof subspace
, abfd
)
1110 /* Setup the subspace name string */
1111 subspace
.name
.n_name
= subspace
.name
.n_strx
+ space_strings
;
1113 /* Make a section out of this subspace */
1114 subspace_asect
= make_unique_section (abfd
, subspace
.name
.n_name
,
1115 space
.subspace_index
+ subspace_index
);
1117 if (!subspace_asect
)
1120 /* Keep an easy mapping between subspaces and sections. */
1121 som_section_data (subspace_asect
)->subspace_index
1122 = total_subspaces
++;
1124 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1125 by the access_control_bits in the subspace header. */
1126 switch (subspace
.access_control_bits
>> 4)
1128 /* Readonly data. */
1130 subspace_asect
->flags
|= SEC_DATA
| SEC_READONLY
;
1135 subspace_asect
->flags
|= SEC_DATA
;
1138 /* Readonly code and the gateways.
1139 Gateways have other attributes which do not map
1140 into anything BFD knows about. */
1146 subspace_asect
->flags
|= SEC_CODE
| SEC_READONLY
;
1149 /* dynamic (writable) code. */
1151 subspace_asect
->flags
|= SEC_CODE
;
1155 if (subspace
.dup_common
|| subspace
.is_common
)
1156 subspace_asect
->flags
|= SEC_IS_COMMON
;
1158 subspace_asect
->flags
|= SEC_HAS_CONTENTS
;
1159 if (subspace
.is_loadable
)
1160 subspace_asect
->flags
|= SEC_ALLOC
| SEC_LOAD
;
1161 if (subspace
.code_only
)
1162 subspace_asect
->flags
|= SEC_CODE
;
1164 /* This subspace has relocations.
1165 The fixup_request_quantity is a byte count for the number of
1166 entries in the relocation stream; it is not the actual number
1167 of relocations in the subspace. */
1168 if (subspace
.fixup_request_quantity
!= 0)
1170 subspace_asect
->flags
|= SEC_RELOC
;
1171 subspace_asect
->rel_filepos
= subspace
.fixup_request_index
;
1172 som_section_data (subspace_asect
)->reloc_size
1173 = subspace
.fixup_request_quantity
;
1174 /* We can not determine this yet. When we read in the
1175 relocation table the correct value will be filled in. */
1176 subspace_asect
->reloc_count
= -1;
1179 /* Update save_subspace if appropriate. */
1180 if (subspace
.file_loc_init_value
> save_subspace
.file_loc_init_value
)
1181 save_subspace
= subspace
;
1183 subspace_asect
->vma
= subspace
.subspace_start
;
1184 subspace_asect
->_cooked_size
= subspace
.subspace_length
;
1185 subspace_asect
->_raw_size
= subspace
.initialization_length
;
1186 subspace_asect
->alignment_power
= log2 (subspace
.alignment
);
1187 subspace_asect
->filepos
= subspace
.file_loc_init_value
;
1190 /* Yow! there is no subspace within the space which actually
1191 has initialized information in it; this should never happen
1192 as far as I know. */
1193 if (!save_subspace
.file_loc_init_value
)
1196 /* Setup the sizes for the space section based upon the info in the
1197 last subspace of the space. */
1198 space_asect
->_cooked_size
= save_subspace
.subspace_start
1199 - space_asect
->vma
+ save_subspace
.subspace_length
;
1200 space_asect
->_raw_size
= save_subspace
.file_loc_init_value
1201 - space_asect
->filepos
+ save_subspace
.initialization_length
;
1206 /* Read in a SOM object and make it into a BFD. */
1212 struct header file_hdr
;
1213 struct som_exec_auxhdr aux_hdr
;
1215 if (bfd_read ((PTR
) & file_hdr
, 1, FILE_HDR_SIZE
, abfd
) != FILE_HDR_SIZE
)
1217 bfd_error
= system_call_error
;
1221 if (!_PA_RISC_ID (file_hdr
.system_id
))
1223 bfd_error
= wrong_format
;
1227 switch (file_hdr
.a_magic
)
1244 bfd_error
= wrong_format
;
1248 if (file_hdr
.version_id
!= VERSION_ID
1249 && file_hdr
.version_id
!= NEW_VERSION_ID
)
1251 bfd_error
= wrong_format
;
1255 /* If the aux_header_size field in the file header is zero, then this
1256 object is an incomplete executable (a .o file). Do not try to read
1257 a non-existant auxiliary header. */
1258 bzero (&aux_hdr
, sizeof (struct som_exec_auxhdr
));
1259 if (file_hdr
.aux_header_size
!= 0)
1261 if (bfd_read ((PTR
) & aux_hdr
, 1, AUX_HDR_SIZE
, abfd
) != AUX_HDR_SIZE
)
1263 bfd_error
= wrong_format
;
1268 if (!setup_sections (abfd
, &file_hdr
))
1270 /* setup_sections does not bubble up a bfd error code. */
1271 bfd_error
= bad_value
;
1275 /* This appears to be a valid SOM object. Do some initialization. */
1276 return som_object_setup (abfd
, &file_hdr
, &aux_hdr
);
1279 /* Create a SOM object. */
1285 /* Allocate memory to hold backend information. */
1286 abfd
->tdata
.som_data
= (struct som_data_struct
*)
1287 bfd_zalloc (abfd
, sizeof (struct som_data_struct
));
1288 if (abfd
->tdata
.som_data
== NULL
)
1290 bfd_error
= no_memory
;
1293 obj_som_file_hdr (abfd
) = bfd_zalloc (abfd
, sizeof (struct header
));
1294 if (obj_som_file_hdr (abfd
) == NULL
)
1297 bfd_error
= no_memory
;
1303 /* Initialize some information in the file header. This routine makes
1304 not attempt at doing the right thing for a full executable; it
1305 is only meant to handle relocatable objects. */
1308 som_prep_headers (abfd
)
1311 struct header
*file_hdr
= obj_som_file_hdr (abfd
);
1314 /* FIXME. This should really be conditional based on whether or not
1315 PA1.1 instructions/registers have been used. */
1316 file_hdr
->system_id
= HP9000S800_ID
;
1318 /* FIXME. Only correct for building relocatable objects. */
1319 if (abfd
->flags
& EXEC_P
)
1322 file_hdr
->a_magic
= RELOC_MAGIC
;
1324 /* Only new format SOM is supported. */
1325 file_hdr
->version_id
= NEW_VERSION_ID
;
1327 /* These fields are optional, and embedding timestamps is not always
1328 a wise thing to do, it makes comparing objects during a multi-stage
1329 bootstrap difficult. */
1330 file_hdr
->file_time
.secs
= 0;
1331 file_hdr
->file_time
.nanosecs
= 0;
1333 if (abfd
->flags
& EXEC_P
)
1337 file_hdr
->entry_space
= 0;
1338 file_hdr
->entry_subspace
= 0;
1339 file_hdr
->entry_offset
= 0;
1342 /* FIXME. I do not know if we ever need to put anything other
1343 than zero in this field. */
1344 file_hdr
->presumed_dp
= 0;
1346 /* Now iterate over the sections translating information from
1347 BFD sections to SOM spaces/subspaces. */
1349 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1351 /* Ignore anything which has not been marked as a space or
1353 if (som_section_data (section
)->is_space
== 0
1355 && som_section_data (section
)->is_subspace
== 0)
1358 if (som_section_data (section
)->is_space
)
1360 /* Set space attributes. Note most attributes of SOM spaces
1361 are set based on the subspaces it contains. */
1362 som_section_data (section
)->space_dict
.loader_fix_index
= -1;
1363 som_section_data (section
)->space_dict
.init_pointer_index
= -1;
1367 /* Set subspace attributes. Basic stuff is done here, additional
1368 attributes are filled in later as more information becomes
1370 if (section
->flags
& SEC_IS_COMMON
)
1372 som_section_data (section
)->subspace_dict
.dup_common
= 1;
1373 som_section_data (section
)->subspace_dict
.is_common
= 1;
1376 if (section
->flags
& SEC_ALLOC
)
1377 som_section_data (section
)->subspace_dict
.is_loadable
= 1;
1379 if (section
->flags
& SEC_CODE
)
1380 som_section_data (section
)->subspace_dict
.code_only
= 1;
1382 som_section_data (section
)->subspace_dict
.subspace_start
=
1384 som_section_data (section
)->subspace_dict
.subspace_length
=
1385 bfd_section_size (abfd
, section
);
1386 som_section_data (section
)->subspace_dict
.initialization_length
=
1387 bfd_section_size (abfd
, section
);
1388 som_section_data (section
)->subspace_dict
.alignment
=
1389 1 << section
->alignment_power
;
1395 /* Count and return the number of spaces attached to the given BFD. */
1397 static unsigned long
1398 som_count_spaces (abfd
)
1404 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1405 count
+= som_section_data (section
)->is_space
;
1410 /* Count the number of subspaces attached to the given BFD. */
1412 static unsigned long
1413 som_count_subspaces (abfd
)
1419 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1420 count
+= som_section_data (section
)->is_subspace
;
1425 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
1427 We desire symbols to be ordered starting with the symbol with the
1428 highest relocation count down to the symbol with the lowest relocation
1429 count. Doing so compacts the relocation stream. */
1432 compare_syms (sym1
, sym2
)
1437 unsigned int count1
, count2
;
1439 /* Get relocation count for each symbol. Note that the count
1440 is stored in the udata pointer for section symbols! */
1441 if ((*sym1
)->flags
& BSF_SECTION_SYM
)
1442 count1
= (int)(*sym1
)->udata
;
1444 count1
= (*som_symbol_data ((*sym1
)))->reloc_count
;
1446 if ((*sym2
)->flags
& BSF_SECTION_SYM
)
1447 count2
= (int)(*sym2
)->udata
;
1449 count2
= (*som_symbol_data ((*sym2
)))->reloc_count
;
1451 /* Return the appropriate value. */
1452 if (count1
< count2
)
1454 else if (count1
> count2
)
1459 /* Perform various work in preparation for emitting the fixup stream. */
1462 som_prep_for_fixups (abfd
, syms
, num_syms
)
1465 unsigned long num_syms
;
1470 /* Most SOM relocations involving a symbol have a length which is
1471 dependent on the index of the symbol. So symbols which are
1472 used often in relocations should have a small index. */
1474 /* First initialize the counters for each symbol. */
1475 for (i
= 0; i
< num_syms
; i
++)
1477 /* Handle a section symbol; these have no pointers back to the
1478 SOM symbol info. So we just use the pointer field (udata)
1479 to hold the relocation count.
1481 FIXME. While we're here set the name of any section symbol
1482 to something which will not screw GDB. How do other formats
1483 deal with this?!? */
1484 if (som_symbol_data (syms
[i
]) == NULL
)
1486 syms
[i
]->flags
|= BSF_SECTION_SYM
;
1487 syms
[i
]->name
= "L$0\002";
1488 syms
[i
]->udata
= (PTR
) 0;
1491 (*som_symbol_data (syms
[i
]))->reloc_count
= 0;
1494 /* Now that the counters are initialized, make a weighted count
1495 of how often a given symbol is used in a relocation. */
1496 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1500 /* Does this section have any relocations? */
1501 if (section
->reloc_count
<= 0)
1504 /* Walk through each relocation for this section. */
1505 for (i
= 1; i
< section
->reloc_count
; i
++)
1507 arelent
*reloc
= section
->orelocation
[i
];
1510 /* If no symbol, then there is no counter to increase. */
1511 if (reloc
->sym_ptr_ptr
== NULL
)
1514 /* Scaling to encourage symbols involved in R_DP_RELATIVE
1515 and R_CODE_ONE_SYMBOL relocations to come first. These
1516 two relocations have single byte versions if the symbol
1517 index is very small. */
1518 if (reloc
->howto
->type
== R_DP_RELATIVE
1519 || reloc
->howto
->type
== R_CODE_ONE_SYMBOL
)
1524 /* Handle section symbols by ramming the count in the udata
1525 field. It will not be used and the count is very important
1526 for these symbols. */
1527 if ((*reloc
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
)
1529 (*reloc
->sym_ptr_ptr
)->udata
=
1530 (PTR
) ((int) (*reloc
->sym_ptr_ptr
)->udata
+ scale
);
1534 /* A normal symbol. Increment the count. */
1535 (*som_symbol_data ((*reloc
->sym_ptr_ptr
)))->reloc_count
+= scale
;
1539 /* Now sort the symbols. */
1540 qsort (syms
, num_syms
, sizeof (asymbol
*), compare_syms
);
1542 /* Compute the symbol indexes, they will be needed by the relocation
1544 for (i
= 0; i
< num_syms
; i
++)
1546 /* A section symbol. Again, there is no pointer to backend symbol
1547 information, so we reuse (abuse) the udata field again. */
1548 if (syms
[i
]->flags
& BSF_SECTION_SYM
)
1549 syms
[i
]->udata
= (PTR
) i
;
1551 (*som_symbol_data (syms
[i
]))->index
= i
;
1556 som_write_fixups (abfd
, current_offset
, total_reloc_sizep
)
1558 unsigned long current_offset
;
1559 unsigned int *total_reloc_sizep
;
1562 unsigned char *tmp_space
, *p
;
1563 unsigned int total_reloc_size
= 0;
1564 unsigned int subspace_reloc_size
= 0;
1565 unsigned int num_spaces
= obj_som_file_hdr (abfd
)->space_total
;
1566 asection
*section
= abfd
->sections
;
1568 /* Get a chunk of memory that we can use as buffer space, then throw
1570 tmp_space
= alloca (SOM_TMP_BUFSIZE
);
1571 bzero (tmp_space
, SOM_TMP_BUFSIZE
);
1574 /* All the fixups for a particular subspace are emitted in a single
1575 stream. All the subspaces for a particular space are emitted
1578 So, to get all the locations correct one must iterate through all the
1579 spaces, for each space iterate through its subspaces and output a
1581 for (i
= 0; i
< num_spaces
; i
++)
1583 asection
*subsection
;
1586 while (som_section_data (section
)->is_space
== 0)
1587 section
= section
->next
;
1589 /* Now iterate through each of its subspaces. */
1590 for (subsection
= abfd
->sections
;
1592 subsection
= subsection
->next
)
1596 /* Find a subspace of this space. */
1597 if (som_section_data (subsection
)->is_subspace
== 0
1598 || som_section_data (subsection
)->containing_space
!= section
)
1601 /* If this subspace had no relocations, then we're finished
1603 if (subsection
->reloc_count
<= 0)
1605 som_section_data (subsection
)->subspace_dict
.fixup_request_index
1610 /* This subspace has some relocations. Put the relocation stream
1611 index into the subspace record. */
1612 som_section_data (subsection
)->subspace_dict
.fixup_request_index
1615 /* To make life easier start over with a clean slate for
1616 each subspace. Seek to the start of the relocation stream
1617 for this subspace in preparation for writing out its fixup
1619 if (bfd_seek (abfd
, current_offset
+ total_reloc_size
, SEEK_SET
) != 0)
1621 bfd_error
= system_call_error
;
1625 /* Buffer space has already been allocated. Just perform some
1626 initialization here. */
1628 subspace_reloc_size
= 0;
1630 som_initialize_reloc_queue (reloc_queue
);
1632 /* Translate each BFD relocation into one or more SOM
1634 for (j
= 0; j
< subsection
->reloc_count
; j
++)
1636 arelent
*bfd_reloc
= subsection
->orelocation
[j
];
1640 /* Get the symbol number. Remember it's stored in a
1641 special place for section symbols. */
1642 if ((*bfd_reloc
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
)
1643 sym_num
= (int) (*bfd_reloc
->sym_ptr_ptr
)->udata
;
1645 sym_num
= (*som_symbol_data ((*bfd_reloc
->sym_ptr_ptr
)))->index
;
1647 /* If there is not enough room for the next couple relocations,
1648 then dump the current buffer contents now. Also reinitialize
1649 the relocation queue.
1651 FIXME. We assume here that no BFD relocation will expand
1652 to more than 100 bytes of SOM relocations. This should (?!?)
1654 if (p
- tmp_space
+ 100 > SOM_TMP_BUFSIZE
)
1656 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1659 bfd_error
= system_call_error
;
1663 som_initialize_reloc_queue (reloc_queue
);
1666 /* Emit R_NO_RELOCATION fixups to map any bytes which were
1668 skip
= bfd_reloc
->address
- reloc_offset
;
1669 p
= som_reloc_skip (abfd
, skip
, p
,
1670 &subspace_reloc_size
, reloc_queue
);
1672 /* Update reloc_offset for the next iteration.
1674 Note R_ENTRY and R_EXIT relocations are just markers,
1675 they do not consume input bytes. */
1676 if (bfd_reloc
->howto
->type
!= R_ENTRY
1677 && bfd_reloc
->howto
->type
!= R_EXIT
)
1678 reloc_offset
= bfd_reloc
->address
+ 4;
1680 reloc_offset
= bfd_reloc
->address
;
1683 /* Now the actual relocation we care about. */
1684 switch (bfd_reloc
->howto
->type
)
1688 p
= som_reloc_call (abfd
, p
, &subspace_reloc_size
,
1689 bfd_reloc
, sym_num
, reloc_queue
);
1692 case R_CODE_ONE_SYMBOL
:
1694 /* Account for any addend. */
1695 if (bfd_reloc
->addend
)
1696 p
= som_reloc_addend (abfd
, bfd_reloc
->addend
, p
,
1697 &subspace_reloc_size
, reloc_queue
);
1701 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ sym_num
, p
);
1702 subspace_reloc_size
+= 1;
1705 else if (sym_num
< 0x100)
1707 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 32, p
);
1708 bfd_put_8 (abfd
, sym_num
, p
+ 1);
1709 p
= try_prev_fixup (abfd
, &subspace_reloc_size
, p
,
1712 else if (sym_num
< 0x10000000)
1714 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 33, p
);
1715 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 1);
1716 bfd_put_16 (abfd
, sym_num
, p
+ 2);
1717 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1724 case R_DATA_ONE_SYMBOL
:
1727 /* Account for any addend. */
1728 if (bfd_reloc
->addend
)
1729 p
= som_reloc_addend (abfd
, bfd_reloc
->addend
, p
,
1730 &subspace_reloc_size
, reloc_queue
);
1732 if (sym_num
< 0x100)
1734 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
, p
);
1735 bfd_put_8 (abfd
, sym_num
, p
+ 1);
1736 p
= try_prev_fixup (abfd
, &subspace_reloc_size
, p
,
1739 else if (sym_num
< 0x10000000)
1741 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 1, p
);
1742 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 1);
1743 bfd_put_16 (abfd
, sym_num
, p
+ 2);
1744 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1754 = (int *) (*som_symbol_data ((*bfd_reloc
->sym_ptr_ptr
)))->unwind
;
1755 bfd_put_8 (abfd
, R_ENTRY
, p
);
1756 bfd_put_32 (abfd
, descp
[0], p
+ 1);
1757 bfd_put_32 (abfd
, descp
[1], p
+ 5);
1758 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1764 bfd_put_8 (abfd
, R_EXIT
, p
);
1765 subspace_reloc_size
+= 1;
1769 /* Put a "R_RESERVED" relocation in the stream if
1770 we hit something we do not understand. The linker
1771 will complain loudly if this ever happens. */
1773 bfd_put_8 (abfd
, 0xff, p
);
1774 subspace_reloc_size
+= 1;
1779 /* Last BFD relocation for a subspace has been processed.
1780 Map the rest of the subspace with R_NO_RELOCATION fixups. */
1781 p
= som_reloc_skip (abfd
, bfd_section_size (abfd
, subsection
)
1783 p
, &subspace_reloc_size
, reloc_queue
);
1785 /* Scribble out the relocations. */
1786 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1789 bfd_error
= system_call_error
;
1794 total_reloc_size
+= subspace_reloc_size
;
1795 som_section_data (subsection
)->subspace_dict
.fixup_request_quantity
1796 = subspace_reloc_size
;
1798 section
= section
->next
;
1800 *total_reloc_sizep
= total_reloc_size
;
1804 /* Write out the space/subspace string table. */
1807 som_write_space_strings (abfd
, current_offset
, string_sizep
)
1809 unsigned long current_offset
;
1810 unsigned int *string_sizep
;
1812 unsigned char *tmp_space
, *p
;
1813 unsigned int strings_size
= 0;
1816 /* Get a chunk of memory that we can use as buffer space, then throw
1818 tmp_space
= alloca (SOM_TMP_BUFSIZE
);
1819 bzero (tmp_space
, SOM_TMP_BUFSIZE
);
1822 /* Seek to the start of the space strings in preparation for writing
1824 if (bfd_seek (abfd
, current_offset
, SEEK_SET
) != 0)
1826 bfd_error
= system_call_error
;
1830 /* Walk through all the spaces and subspaces (order is not important)
1831 building up and writing string table entries for their names. */
1832 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1836 /* Only work with space/subspaces; avoid any other sections
1837 which might have been made (.text for example). */
1838 if (som_section_data (section
)->is_space
== 0
1839 && som_section_data (section
)->is_subspace
== 0)
1842 /* Get the length of the space/subspace name. */
1843 length
= strlen (section
->name
);
1845 /* If there is not enough room for the next entry, then dump the
1846 current buffer contents now. Each entry will take 4 bytes to
1847 hold the string length + the string itself + null terminator. */
1848 if (p
- tmp_space
+ 5 + length
> SOM_TMP_BUFSIZE
)
1850 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1853 bfd_error
= system_call_error
;
1856 /* Reset to beginning of the buffer space. */
1860 /* First element in a string table entry is the length of the
1861 string. Alignment issues are already handled. */
1862 bfd_put_32 (abfd
, length
, p
);
1866 /* Record the index in the space/subspace records. */
1867 if (som_section_data (section
)->is_space
)
1868 som_section_data (section
)->space_dict
.name
.n_strx
= strings_size
;
1870 som_section_data (section
)->subspace_dict
.name
.n_strx
= strings_size
;
1872 /* Next comes the string itself + a null terminator. */
1873 strcpy (p
, section
->name
);
1875 strings_size
+= length
+ 1;
1877 /* Always align up to the next word boundary. */
1878 while (strings_size
% 4)
1880 bfd_put_8 (abfd
, 0, p
);
1886 /* Done with the space/subspace strings. Write out any information
1887 contained in a partial block. */
1888 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
) != p
- tmp_space
)
1890 bfd_error
= system_call_error
;
1893 *string_sizep
= strings_size
;
1897 /* Write out the symbol string table. */
1900 som_write_symbol_strings (abfd
, current_offset
, syms
, num_syms
, string_sizep
)
1902 unsigned long current_offset
;
1904 unsigned int num_syms
;
1905 unsigned int *string_sizep
;
1908 unsigned char *tmp_space
, *p
;
1909 unsigned int strings_size
= 0;
1911 /* Get a chunk of memory that we can use as buffer space, then throw
1913 tmp_space
= alloca (SOM_TMP_BUFSIZE
);
1914 bzero (tmp_space
, SOM_TMP_BUFSIZE
);
1917 /* Seek to the start of the space strings in preparation for writing
1919 if (bfd_seek (abfd
, current_offset
, SEEK_SET
) != 0)
1921 bfd_error
= system_call_error
;
1925 for (i
= 0; i
< num_syms
; i
++)
1927 int length
= strlen (syms
[i
]->name
);
1929 /* If there is not enough room for the next entry, then dump the
1930 current buffer contents now. */
1931 if (p
- tmp_space
+ 5 + length
> SOM_TMP_BUFSIZE
)
1933 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1936 bfd_error
= system_call_error
;
1939 /* Reset to beginning of the buffer space. */
1943 /* First element in a string table entry is the length of the
1944 string. This must always be 4 byte aligned. This is also
1945 an appropriate time to fill in the string index field in the
1946 symbol table entry. */
1947 bfd_put_32 (abfd
, length
, p
);
1951 /* Next comes the string itself + a null terminator. */
1952 strcpy (p
, syms
[i
]->name
);
1955 syms
[i
]->name
= (char *)strings_size
;
1957 strings_size
+= length
+ 1;
1959 /* Always align up to the next word boundary. */
1960 while (strings_size
% 4)
1962 bfd_put_8 (abfd
, 0, p
);
1968 /* Scribble out any partial block. */
1969 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
) != p
- tmp_space
)
1971 bfd_error
= system_call_error
;
1975 *string_sizep
= strings_size
;
1979 /* Compute variable information to be placed in the SOM headers,
1980 space/subspace dictionaries, relocation streams, etc. Begin
1981 writing parts of the object file. */
1984 som_begin_writing (abfd
)
1987 unsigned long current_offset
= 0;
1988 int strings_size
= 0;
1989 unsigned int total_reloc_size
= 0;
1990 unsigned long num_spaces
, num_subspaces
, num_syms
, i
;
1992 asymbol
**syms
= bfd_get_outsymbols (abfd
);
1993 unsigned int total_subspaces
= 0;
1995 /* The file header will always be first in an object file,
1996 everything else can be in random locations. To keep things
1997 "simple" BFD will lay out the object file in the manner suggested
1998 by the PRO ABI for PA-RISC Systems. */
2000 /* Before any output can really begin offsets for all the major
2001 portions of the object file must be computed. So, starting
2002 with the initial file header compute (and sometimes write)
2003 each portion of the object file. */
2005 /* Make room for the file header, it's contents are not complete
2006 yet, so it can not be written at this time. */
2007 current_offset
+= sizeof (struct header
);
2009 /* Any auxiliary headers will follow the file header. Right now
2010 we have no auxiliary headers, so current_offset does not change. */
2011 obj_som_file_hdr (abfd
)->aux_header_location
= current_offset
;
2012 obj_som_file_hdr (abfd
)->aux_header_size
= 0;
2014 /* Next comes the initialization pointers; again we have no
2015 initialization pointers, so current offset does not change. */
2016 obj_som_file_hdr (abfd
)->init_array_location
= current_offset
;
2017 obj_som_file_hdr (abfd
)->init_array_total
= 0;
2019 /* Next are the space records. These are fixed length records.
2021 Count the number of spaces to determine how much room is needed
2022 in the object file for the space records.
2024 The names of the spaces are stored in a separate string table,
2025 and the index for each space into the string table is computed
2026 below. Therefore, it is not possible to write the space headers
2028 num_spaces
= som_count_spaces (abfd
);
2029 obj_som_file_hdr (abfd
)->space_location
= current_offset
;
2030 obj_som_file_hdr (abfd
)->space_total
= num_spaces
;
2031 current_offset
+= num_spaces
* sizeof (struct space_dictionary_record
);
2033 /* Next are the subspace records. These are fixed length records.
2035 Count the number of subspaes to determine how much room is needed
2036 in the object file for the subspace records.
2038 A variety if fields in the subspace record are still unknown at
2039 this time (index into string table, fixup stream location/size, etc). */
2040 num_subspaces
= som_count_subspaces (abfd
);
2041 obj_som_file_hdr (abfd
)->subspace_location
= current_offset
;
2042 obj_som_file_hdr (abfd
)->subspace_total
= num_subspaces
;
2043 current_offset
+= num_subspaces
* sizeof (struct subspace_dictionary_record
);
2045 /* Next is the string table for the space/subspace names. We will
2046 build and write the string table on the fly. At the same time
2047 we will fill in the space/subspace name index fields. */
2049 /* The string table needs to be aligned on a word boundary. */
2050 if (current_offset
% 4)
2051 current_offset
+= (4 - (current_offset
% 4));
2053 /* Mark the offset of the space/subspace string table in the
2055 obj_som_file_hdr (abfd
)->space_strings_location
= current_offset
;
2057 /* Scribble out the space strings. */
2058 if (som_write_space_strings (abfd
, current_offset
, &strings_size
) == false)
2061 /* Record total string table size in the header and update the
2063 obj_som_file_hdr (abfd
)->space_strings_size
= strings_size
;
2064 current_offset
+= strings_size
;
2066 /* Next is the symbol table. These are fixed length records.
2068 Count the number of symbols to determine how much room is needed
2069 in the object file for the symbol table.
2071 The names of the symbols are stored in a separate string table,
2072 and the index for each symbol name into the string table is computed
2073 below. Therefore, it is not possible to write the symobl table
2075 num_syms
= bfd_get_symcount (abfd
);
2076 obj_som_file_hdr (abfd
)->symbol_location
= current_offset
;
2077 obj_som_file_hdr (abfd
)->symbol_total
= num_syms
;
2078 current_offset
+= num_syms
* sizeof (struct symbol_dictionary_record
);
2080 /* Do prep work before handling fixups. */
2081 som_prep_for_fixups (abfd
, syms
, num_syms
);
2083 /* Next comes the fixup stream which starts on a word boundary. */
2084 if (current_offset
% 4)
2085 current_offset
+= (4 - (current_offset
% 4));
2086 obj_som_file_hdr (abfd
)->fixup_request_location
= current_offset
;
2088 /* Write the fixups and update fields in subspace headers which
2089 relate to the fixup stream. */
2090 if (som_write_fixups (abfd
, current_offset
, &total_reloc_size
) == false)
2093 /* Record the total size of the fixup stream in the file header. */
2094 obj_som_file_hdr (abfd
)->fixup_request_total
= total_reloc_size
;
2095 current_offset
+= total_reloc_size
;
2097 /* Next are the symbol strings.
2098 Align them to a word boundary. */
2099 if (current_offset
% 4)
2100 current_offset
+= (4 - (current_offset
% 4));
2101 obj_som_file_hdr (abfd
)->symbol_strings_location
= current_offset
;
2103 /* Scribble out the symbol strings. */
2104 if (som_write_symbol_strings (abfd
, current_offset
, syms
,
2105 num_syms
, &strings_size
)
2109 /* Record total string table size in header and update the
2111 obj_som_file_hdr (abfd
)->symbol_strings_size
= strings_size
;
2112 current_offset
+= strings_size
;
2114 /* Next is the compiler records. We do not use these. */
2115 obj_som_file_hdr (abfd
)->compiler_location
= current_offset
;
2116 obj_som_file_hdr (abfd
)->compiler_total
= 0;
2118 /* Now compute the file positions for the loadable subspaces. */
2120 section
= abfd
->sections
;
2121 for (i
= 0; i
< num_spaces
; i
++)
2123 asection
*subsection
;
2126 while (som_section_data (section
)->is_space
== 0)
2127 section
= section
->next
;
2129 /* Now look for all its subspaces. */
2130 for (subsection
= abfd
->sections
;
2132 subsection
= subsection
->next
)
2135 if (som_section_data (subsection
)->is_subspace
== 0
2136 || som_section_data (subsection
)->containing_space
!= section
2137 || (subsection
->flags
& SEC_ALLOC
) == 0)
2140 som_section_data (subsection
)->subspace_index
= total_subspaces
++;
2141 /* This is real data to be loaded from the file. */
2142 if (subsection
->flags
& SEC_LOAD
)
2144 som_section_data (subsection
)->subspace_dict
.file_loc_init_value
2146 section
->filepos
= current_offset
;
2147 current_offset
+= bfd_section_size (abfd
, subsection
);
2149 /* Looks like uninitialized data. */
2152 som_section_data (subsection
)->subspace_dict
.file_loc_init_value
2154 som_section_data (subsection
)->subspace_dict
.
2155 initialization_length
= 0;
2158 /* Goto the next section. */
2159 section
= section
->next
;
2162 /* Finally compute the file positions for unloadable subspaces. */
2164 obj_som_file_hdr (abfd
)->unloadable_sp_location
= current_offset
;
2165 section
= abfd
->sections
;
2166 for (i
= 0; i
< num_spaces
; i
++)
2168 asection
*subsection
;
2171 while (som_section_data (section
)->is_space
== 0)
2172 section
= section
->next
;
2174 /* Now look for all its subspaces. */
2175 for (subsection
= abfd
->sections
;
2177 subsection
= subsection
->next
)
2180 if (som_section_data (subsection
)->is_subspace
== 0
2181 || som_section_data (subsection
)->containing_space
!= section
2182 || (subsection
->flags
& SEC_ALLOC
) != 0)
2185 som_section_data (subsection
)->subspace_index
= total_subspaces
++;
2186 /* This is real data to be loaded from the file. */
2187 if ((subsection
->flags
& SEC_LOAD
) == 0)
2189 som_section_data (subsection
)->subspace_dict
.file_loc_init_value
2191 section
->filepos
= current_offset
;
2192 current_offset
+= bfd_section_size (abfd
, subsection
);
2194 /* Looks like uninitialized data. */
2197 som_section_data (subsection
)->subspace_dict
.file_loc_init_value
2199 som_section_data (subsection
)->subspace_dict
.
2200 initialization_length
= bfd_section_size (abfd
, subsection
);
2203 /* Goto the next section. */
2204 section
= section
->next
;
2207 obj_som_file_hdr (abfd
)->unloadable_sp_size
2208 = current_offset
- obj_som_file_hdr (abfd
)->unloadable_sp_location
;
2210 /* Loader fixups are not supported in any way shape or form. */
2211 obj_som_file_hdr (abfd
)->loader_fixup_location
= 0;
2212 obj_som_file_hdr (abfd
)->loader_fixup_total
= 0;
2214 /* Done. Store the total size of the SOM. */
2215 obj_som_file_hdr (abfd
)->som_length
= current_offset
;
2219 /* Finally, scribble out the various headers to the disk. */
2222 som_write_headers (abfd
)
2225 int num_spaces
= som_count_spaces (abfd
);
2227 int subspace_index
= 0;
2231 /* Subspaces are written first so that we can set up information
2232 about them in their containing spaces as the subspace is written. */
2234 /* Seek to the start of the subspace dictionary records. */
2235 location
= obj_som_file_hdr (abfd
)->subspace_location
;
2236 bfd_seek (abfd
, location
, SEEK_SET
);
2237 section
= abfd
->sections
;
2238 /* Now for each loadable space write out records for its subspaces. */
2239 for (i
= 0; i
< num_spaces
; i
++)
2241 asection
*subsection
;
2244 while (som_section_data (section
)->is_space
== 0)
2245 section
= section
->next
;
2247 /* Now look for all its subspaces. */
2248 for (subsection
= abfd
->sections
;
2250 subsection
= subsection
->next
)
2253 /* Skip any section which does not correspond to a space
2254 or subspace. Or does not have SEC_ALLOC set (and therefore
2255 has no real bits on the disk). */
2256 if (som_section_data (subsection
)->is_subspace
== 0
2257 || som_section_data (subsection
)->containing_space
!= section
2258 || (subsection
->flags
& SEC_ALLOC
) == 0)
2261 /* If this is the first subspace for this space, then save
2262 the index of the subspace in its containing space. Also
2263 set "is_loadable" in the containing space. */
2265 if (som_section_data (section
)->space_dict
.subspace_quantity
== 0)
2267 som_section_data (section
)->space_dict
.is_loadable
= 1;
2268 som_section_data (section
)->space_dict
.subspace_index
2272 /* Increment the number of subspaces seen and the number of
2273 subspaces contained within the current space. */
2275 som_section_data (section
)->space_dict
.subspace_quantity
++;
2277 /* Mark the index of the current space within the subspace's
2278 dictionary record. */
2279 som_section_data (subsection
)->subspace_dict
.space_index
= i
;
2281 /* Dump the current subspace header. */
2282 if (bfd_write ((PTR
) &som_section_data (subsection
)->subspace_dict
,
2283 sizeof (struct subspace_dictionary_record
), 1, abfd
)
2284 != sizeof (struct subspace_dictionary_record
))
2286 bfd_error
= system_call_error
;
2290 /* Goto the next section. */
2291 section
= section
->next
;
2294 /* Now repeat the process for unloadable subspaces. */
2295 section
= abfd
->sections
;
2296 /* Now for each space write out records for its subspaces. */
2297 for (i
= 0; i
< num_spaces
; i
++)
2299 asection
*subsection
;
2302 while (som_section_data (section
)->is_space
== 0)
2303 section
= section
->next
;
2305 /* Now look for all its subspaces. */
2306 for (subsection
= abfd
->sections
;
2308 subsection
= subsection
->next
)
2311 /* Skip any section which does not correspond to a space or
2312 subspace, or which SEC_ALLOC set (and therefore handled
2313 in the loadable spaces/subspaces code above. */
2315 if (som_section_data (subsection
)->is_subspace
== 0
2316 || som_section_data (subsection
)->containing_space
!= section
2317 || (subsection
->flags
& SEC_ALLOC
) != 0)
2320 /* If this is the first subspace for this space, then save
2321 the index of the subspace in its containing space. Clear
2324 if (som_section_data (section
)->space_dict
.subspace_quantity
== 0)
2326 som_section_data (section
)->space_dict
.is_loadable
= 0;
2327 som_section_data (section
)->space_dict
.subspace_index
2331 /* Increment the number of subspaces seen and the number of
2332 subspaces contained within the current space. */
2333 som_section_data (section
)->space_dict
.subspace_quantity
++;
2336 /* Mark the index of the current space within the subspace's
2337 dictionary record. */
2338 som_section_data (subsection
)->subspace_dict
.space_index
= i
;
2340 /* Dump this subspace header. */
2341 if (bfd_write ((PTR
) &som_section_data (subsection
)->subspace_dict
,
2342 sizeof (struct subspace_dictionary_record
), 1, abfd
)
2343 != sizeof (struct subspace_dictionary_record
))
2345 bfd_error
= system_call_error
;
2349 /* Goto the next section. */
2350 section
= section
->next
;
2353 /* All the subspace dictiondary records are written, and all the
2354 fields are set up in the space dictionary records.
2356 Seek to the right location and start writing the space
2357 dictionary records. */
2358 location
= obj_som_file_hdr (abfd
)->space_location
;
2359 bfd_seek (abfd
, location
, SEEK_SET
);
2361 section
= abfd
->sections
;
2362 for (i
= 0; i
< num_spaces
; i
++)
2366 while (som_section_data (section
)->is_space
== 0)
2367 section
= section
->next
;
2369 /* Dump its header */
2370 if (bfd_write ((PTR
) &som_section_data (section
)->space_dict
,
2371 sizeof (struct space_dictionary_record
), 1, abfd
)
2372 != sizeof (struct space_dictionary_record
))
2374 bfd_error
= system_call_error
;
2378 /* Goto the next section. */
2379 section
= section
->next
;
2382 /* Only thing left to do is write out the file header. It is always
2383 at location zero. Seek there and write it. */
2384 bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
);
2385 if (bfd_write ((PTR
) obj_som_file_hdr (abfd
),
2386 sizeof (struct header
), 1, abfd
)
2387 != sizeof (struct header
))
2389 bfd_error
= system_call_error
;
2395 /* Compute and return the checksum for a SOM file header. */
2397 static unsigned long
2398 som_compute_checksum (abfd
)
2401 unsigned long checksum
, count
, i
;
2402 unsigned long *buffer
= (unsigned long *) obj_som_file_hdr (abfd
);
2405 count
= sizeof (struct header
) / sizeof (unsigned long);
2406 for (i
= 0; i
< count
; i
++)
2407 checksum
^= *(buffer
+ i
);
2412 /* Build and write, in one big chunk, the entire symbol table for
2416 som_build_and_write_symbol_table (abfd
)
2419 unsigned int num_syms
= bfd_get_symcount (abfd
);
2420 file_ptr symtab_location
= obj_som_file_hdr (abfd
)->symbol_location
;
2421 asymbol
**bfd_syms
= bfd_get_outsymbols (abfd
);
2422 struct symbol_dictionary_record
*som_symtab
;
2425 /* Compute total symbol table size and allocate a chunk of memory
2426 to hold the symbol table as we build it. */
2427 symtab_size
= num_syms
* sizeof (struct symbol_dictionary_record
);
2428 som_symtab
= (struct symbol_dictionary_record
*) alloca (symtab_size
);
2429 bzero (som_symtab
, symtab_size
);
2431 /* Walk over each symbol. */
2432 for (i
= 0; i
< num_syms
; i
++)
2434 /* This is really an index into the symbol strings table.
2435 By the time we get here, the index has already been
2436 computed and stored into the name field in the BFD symbol. */
2437 som_symtab
[i
].name
.n_strx
= (int) bfd_syms
[i
]->name
;
2439 /* The HP SOM linker requires detailed type information about
2440 all symbols (including undefined symbols!). Unfortunately,
2441 the type specified in an import/export statement does not
2442 always match what the linker wants. Severe braindamage. */
2444 /* Section symbols will not have a SOM symbol type assigned to
2445 them yet. Assign all section symbols type ST_DATA. */
2446 if (bfd_syms
[i
]->flags
& BSF_SECTION_SYM
)
2447 som_symtab
[i
].symbol_type
= ST_DATA
;
2450 /* Common symbols must have scope SS_UNSAT and type
2451 ST_STORAGE or the linker will choke. */
2452 if (bfd_syms
[i
]->section
== &bfd_com_section
)
2454 som_symtab
[i
].symbol_scope
= SS_UNSAT
;
2455 som_symtab
[i
].symbol_type
= ST_STORAGE
;
2458 /* It is possible to have a symbol without an associated
2459 type. This happens if the user imported the symbol
2460 without a type and the symbol was never defined
2461 locally. If BSF_FUNCTION is set for this symbol, then
2462 assign it type ST_CODE (the HP linker requires undefined
2463 external functions to have type ST_CODE rather than ST_ENTRY. */
2464 else if (((*som_symbol_data (bfd_syms
[i
]))->som_type
2465 == SYMBOL_TYPE_UNKNOWN
)
2466 && (bfd_syms
[i
]->section
== &bfd_und_section
)
2467 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
))
2468 som_symtab
[i
].symbol_type
= ST_CODE
;
2470 /* Handle function symbols which were defined in this file.
2471 They should have type ST_ENTRY. Also retrieve the argument
2472 relocation bits from the SOM backend information. */
2473 else if (((*som_symbol_data (bfd_syms
[i
]))->som_type
2474 == SYMBOL_TYPE_ENTRY
)
2475 || (((*som_symbol_data (bfd_syms
[i
]))->som_type
2476 == SYMBOL_TYPE_CODE
)
2477 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
))
2478 || (((*som_symbol_data (bfd_syms
[i
]))->som_type
2479 == SYMBOL_TYPE_UNKNOWN
)
2480 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
)))
2482 som_symtab
[i
].symbol_type
= ST_ENTRY
;
2483 som_symtab
[i
].arg_reloc
2484 = (*som_symbol_data (bfd_syms
[i
]))->tc_data
.hppa_arg_reloc
;
2487 /* If the type is unknown at this point, it should be
2488 ST_DATA (functions were handled as special cases above). */
2489 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2490 == SYMBOL_TYPE_UNKNOWN
)
2491 som_symtab
[i
].symbol_type
= ST_DATA
;
2493 /* From now on it's a very simple mapping. */
2494 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2495 == SYMBOL_TYPE_ABSOLUTE
)
2496 som_symtab
[i
].symbol_type
= ST_ABSOLUTE
;
2497 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2498 == SYMBOL_TYPE_CODE
)
2499 som_symtab
[i
].symbol_type
= ST_CODE
;
2500 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2501 == SYMBOL_TYPE_DATA
)
2502 som_symtab
[i
].symbol_type
= ST_DATA
;
2503 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2504 == SYMBOL_TYPE_MILLICODE
)
2505 som_symtab
[i
].symbol_type
= ST_MILLICODE
;
2506 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2507 == SYMBOL_TYPE_PLABEL
)
2508 som_symtab
[i
].symbol_type
= ST_PLABEL
;
2509 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2510 == SYMBOL_TYPE_PRI_PROG
)
2511 som_symtab
[i
].symbol_type
= ST_PRI_PROG
;
2512 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2513 == SYMBOL_TYPE_SEC_PROG
)
2514 som_symtab
[i
].symbol_type
= ST_SEC_PROG
;
2517 /* Now handle the symbol's scope. Exported data which is not
2518 in the common section has scope SS_UNIVERSAL. Note scope
2519 of common symbols was handled earlier! */
2520 if (bfd_syms
[i
]->flags
& BSF_EXPORT
2521 && bfd_syms
[i
]->section
!= &bfd_com_section
)
2522 som_symtab
[i
].symbol_scope
= SS_UNIVERSAL
;
2523 /* Any undefined symbol at this point has a scope SS_UNSAT. */
2524 else if (bfd_syms
[i
]->section
== &bfd_und_section
)
2525 som_symtab
[i
].symbol_scope
= SS_UNSAT
;
2526 /* Anything else which is not in the common section has scope
2528 else if (bfd_syms
[i
]->section
!= &bfd_com_section
)
2529 som_symtab
[i
].symbol_scope
= SS_LOCAL
;
2531 /* Now set the symbol_info field. It has no real meaning
2532 for undefined or common symbols, but the HP linker will
2533 choke if it's not set to some "reasonable" value. We
2534 use zero as a reasonable value. */
2535 if (bfd_syms
[i
]->section
== &bfd_com_section
2536 || bfd_syms
[i
]->section
== &bfd_und_section
)
2537 som_symtab
[i
].symbol_info
= 0;
2538 /* For all other symbols, the symbol_info field contains the
2539 subspace index of the space this symbol is contained in. */
2541 som_symtab
[i
].symbol_info
2542 = som_section_data (bfd_syms
[i
]->section
)->subspace_index
;
2544 /* Set the symbol's value. */
2545 som_symtab
[i
].symbol_value
2546 = bfd_syms
[i
]->value
+ bfd_syms
[i
]->section
->vma
;
2549 /* Egad. Everything is ready, seek to the right location and
2550 scribble out the symbol table. */
2551 if (bfd_seek (abfd
, symtab_location
, SEEK_SET
) != 0)
2553 bfd_error
= system_call_error
;
2557 if (bfd_write ((PTR
) som_symtab
, symtab_size
, 1, abfd
) != symtab_size
)
2559 bfd_error
= system_call_error
;
2565 /* Write an object in SOM format. */
2568 som_write_object_contents (abfd
)
2571 if (abfd
->output_has_begun
== false)
2573 /* Set up fixed parts of the file, space, and subspace headers.
2574 Notify the world that output has begun. */
2575 som_prep_headers (abfd
);
2576 abfd
->output_has_begun
= true;
2577 /* Start writing the object file. This include all the string
2578 tables, fixup streams, and other portions of the object file. */
2579 som_begin_writing (abfd
);
2582 /* Now that the symbol table information is complete, build and
2583 write the symbol table. */
2584 if (som_build_and_write_symbol_table (abfd
) == false)
2587 /* Compute the checksum for the file header just before writing
2588 the header to disk. */
2589 obj_som_file_hdr (abfd
)->checksum
= som_compute_checksum (abfd
);
2590 return (som_write_headers (abfd
));
2594 /* Read and save the string table associated with the given BFD. */
2597 som_slurp_string_table (abfd
)
2602 /* Use the saved version if its available. */
2603 if (obj_som_stringtab (abfd
) != NULL
)
2606 /* Allocate and read in the string table. */
2607 stringtab
= bfd_zalloc (abfd
, obj_som_stringtab_size (abfd
));
2608 if (stringtab
== NULL
)
2610 bfd_error
= no_memory
;
2614 if (bfd_seek (abfd
, obj_som_str_filepos (abfd
), SEEK_SET
) < 0)
2616 bfd_error
= system_call_error
;
2620 if (bfd_read (stringtab
, obj_som_stringtab_size (abfd
), 1, abfd
)
2621 != obj_som_stringtab_size (abfd
))
2623 bfd_error
= system_call_error
;
2627 /* Save our results and return success. */
2628 obj_som_stringtab (abfd
) = stringtab
;
2632 /* Return the amount of data (in bytes) required to hold the symbol
2633 table for this object. */
2636 som_get_symtab_upper_bound (abfd
)
2639 if (!som_slurp_symbol_table (abfd
))
2642 return (bfd_get_symcount (abfd
) + 1) * (sizeof (som_symbol_type
*));
2645 /* Convert from a SOM subspace index to a BFD section. */
2648 som_section_from_subspace_index (abfd
, index
)
2654 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
2655 if (som_section_data (section
)->subspace_index
== index
)
2658 /* Should never happen. */
2662 /* Read and save the symbol table associated with the given BFD. */
2665 som_slurp_symbol_table (abfd
)
2668 int symbol_count
= bfd_get_symcount (abfd
);
2669 int symsize
= sizeof (struct symbol_dictionary_record
);
2671 struct symbol_dictionary_record
*buf
, *bufp
, *endbufp
;
2672 som_symbol_type
*sym
, *symbase
;
2674 /* Return saved value if it exists. */
2675 if (obj_som_symtab (abfd
) != NULL
)
2678 /* Sanity checking. Make sure there are some symbols and that
2679 we can read the string table too. */
2680 if (symbol_count
== 0)
2682 bfd_error
= no_symbols
;
2686 if (!som_slurp_string_table (abfd
))
2689 stringtab
= obj_som_stringtab (abfd
);
2691 symbase
= (som_symbol_type
*)
2692 bfd_zalloc (abfd
, symbol_count
* sizeof (som_symbol_type
));
2693 if (symbase
== NULL
)
2695 bfd_error
= no_memory
;
2699 /* Read in the external SOM representation. */
2700 buf
= alloca (symbol_count
* symsize
);
2703 bfd_error
= no_memory
;
2706 if (bfd_seek (abfd
, obj_som_sym_filepos (abfd
), SEEK_SET
) < 0)
2708 bfd_error
= system_call_error
;
2711 if (bfd_read (buf
, symbol_count
* symsize
, 1, abfd
)
2712 != symbol_count
* symsize
)
2714 bfd_error
= no_symbols
;
2718 /* Iterate over all the symbols and internalize them. */
2719 endbufp
= buf
+ symbol_count
;
2720 for (bufp
= buf
, sym
= symbase
; bufp
< endbufp
; ++bufp
)
2723 /* I don't think we care about these. */
2724 if (bufp
->symbol_type
== ST_SYM_EXT
2725 || bufp
->symbol_type
== ST_ARG_EXT
)
2728 /* Some reasonable defaults. */
2729 sym
->symbol
.the_bfd
= abfd
;
2730 sym
->symbol
.name
= bufp
->name
.n_strx
+ stringtab
;
2731 sym
->symbol
.value
= bufp
->symbol_value
;
2732 sym
->symbol
.section
= 0;
2733 sym
->symbol
.flags
= 0;
2735 switch (bufp
->symbol_type
)
2738 sym
->symbol
.flags
|= BSF_FUNCTION
;
2739 sym
->symbol
.value
&= ~0x3;
2747 sym
->symbol
.value
&= ~0x3;
2753 /* Handle scoping and section information. */
2754 switch (bufp
->symbol_scope
)
2756 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
2757 so the section associated with this symbol can't be known. */
2760 sym
->symbol
.flags
|= (BSF_EXPORT
| BSF_GLOBAL
);
2764 sym
->symbol
.flags
|= (BSF_EXPORT
| BSF_GLOBAL
);
2766 = som_section_from_subspace_index (abfd
, bufp
->symbol_info
);
2767 sym
->symbol
.value
-= sym
->symbol
.section
->vma
;
2771 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
2772 Sound dumb? It is. */
2776 sym
->symbol
.flags
|= BSF_LOCAL
;
2778 = som_section_from_subspace_index (abfd
, bufp
->symbol_info
);
2779 sym
->symbol
.value
-= sym
->symbol
.section
->vma
;
2783 /* Mark symbols left around by the debugger. */
2784 if (strlen (sym
->symbol
.name
) >= 3
2785 && sym
->symbol
.name
[0] == 'L'
2786 && (sym
->symbol
.name
[2] == '$' || sym
->symbol
.name
[3] == '$'))
2787 sym
->symbol
.flags
|= BSF_DEBUGGING
;
2789 /* Note increment at bottom of loop, since we skip some symbols
2790 we can not include it as part of the for statement. */
2794 /* Save our results and return success. */
2795 obj_som_symtab (abfd
) = symbase
;
2799 /* Canonicalize a SOM symbol table. Return the number of entries
2800 in the symbol table. */
2803 som_get_symtab (abfd
, location
)
2808 som_symbol_type
*symbase
;
2810 if (!som_slurp_symbol_table (abfd
))
2813 i
= bfd_get_symcount (abfd
);
2814 symbase
= obj_som_symtab (abfd
);
2816 for (; i
> 0; i
--, location
++, symbase
++)
2817 *location
= &symbase
->symbol
;
2819 /* Final null pointer. */
2821 return (bfd_get_symcount (abfd
));
2824 /* Make a SOM symbol. There is nothing special to do here. */
2827 som_make_empty_symbol (abfd
)
2830 som_symbol_type
*new =
2831 (som_symbol_type
*) bfd_zalloc (abfd
, sizeof (som_symbol_type
));
2834 bfd_error
= no_memory
;
2837 new->symbol
.the_bfd
= abfd
;
2839 return &new->symbol
;
2842 /* Print symbol information. */
2845 som_print_symbol (ignore_abfd
, afile
, symbol
, how
)
2849 bfd_print_symbol_type how
;
2851 FILE *file
= (FILE *) afile
;
2854 case bfd_print_symbol_name
:
2855 fprintf (file
, "%s", symbol
->name
);
2857 case bfd_print_symbol_more
:
2858 fprintf (file
, "som ");
2859 fprintf_vma (file
, symbol
->value
);
2860 fprintf (file
, " %lx", (long) symbol
->flags
);
2862 case bfd_print_symbol_all
:
2864 CONST
char *section_name
;
2865 section_name
= symbol
->section
? symbol
->section
->name
: "(*none*)";
2866 bfd_print_symbol_vandf ((PTR
) file
, symbol
);
2867 fprintf (file
, " %s\t%s", section_name
, symbol
->name
);
2874 som_get_reloc_upper_bound (abfd
, asect
)
2878 fprintf (stderr
, "som_get_reloc_upper_bound unimplemented\n");
2885 som_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
2891 fprintf (stderr
, "som_canonicalize_reloc unimplemented\n");
2896 extern bfd_target som_vec
;
2898 /* A hook to set up object file dependent section information. */
2901 som_new_section_hook (abfd
, newsect
)
2905 newsect
->used_by_bfd
= (struct som_section_data_struct
*)
2906 bfd_zalloc (abfd
, sizeof (struct som_section_data_struct
));
2907 newsect
->alignment_power
= 3;
2909 /* Initialize the subspace_index field to -1 so that it does
2910 not match a subspace with an index of 0. */
2911 som_section_data (newsect
)->subspace_index
= -1;
2913 /* We allow more than three sections internally */
2917 /* Set backend info for sections which can not be described
2918 in the BFD data structures. */
2921 bfd_som_set_section_attributes (section
, defined
, private, sort_key
, spnum
)
2925 unsigned char sort_key
;
2928 struct space_dictionary_record
*space_dict
;
2930 som_section_data (section
)->is_space
= 1;
2931 space_dict
= &som_section_data (section
)->space_dict
;
2932 space_dict
->is_defined
= defined
;
2933 space_dict
->is_private
= private;
2934 space_dict
->sort_key
= sort_key
;
2935 space_dict
->space_number
= spnum
;
2938 /* Set backend info for subsections which can not be described
2939 in the BFD data structures. */
2942 bfd_som_set_subsection_attributes (section
, container
, access
,
2945 asection
*container
;
2947 unsigned char sort_key
;
2950 struct subspace_dictionary_record
*subspace_dict
;
2951 som_section_data (section
)->is_subspace
= 1;
2952 subspace_dict
= &som_section_data (section
)->subspace_dict
;
2953 subspace_dict
->access_control_bits
= access
;
2954 subspace_dict
->sort_key
= sort_key
;
2955 subspace_dict
->quadrant
= quadrant
;
2956 som_section_data (section
)->containing_space
= container
;
2959 /* Set the full SOM symbol type. SOM needs far more symbol information
2960 than any other object file format I'm aware of. It is mandatory
2961 to be able to know if a symbol is an entry point, millicode, data,
2962 code, absolute, storage request, or procedure label. If you get
2963 the symbol type wrong your program will not link. */
2966 bfd_som_set_symbol_type (symbol
, type
)
2970 (*som_symbol_data (symbol
))->som_type
= type
;
2973 /* Attach 64bits of unwind information to a symbol (which hopefully
2974 is a function of some kind!). It would be better to keep this
2975 in the R_ENTRY relocation, but there is not enough space. */
2978 bfd_som_attach_unwind_info (symbol
, unwind_desc
)
2982 (*som_symbol_data (symbol
))->unwind
= unwind_desc
;
2986 som_set_section_contents (abfd
, section
, location
, offset
, count
)
2991 bfd_size_type count
;
2993 if (abfd
->output_has_begun
== false)
2995 /* Set up fixed parts of the file, space, and subspace headers.
2996 Notify the world that output has begun. */
2997 som_prep_headers (abfd
);
2998 abfd
->output_has_begun
= true;
2999 /* Start writing the object file. This include all the string
3000 tables, fixup streams, and other portions of the object file. */
3001 som_begin_writing (abfd
);
3004 /* Only write subspaces which have "real" contents (eg. the contents
3005 are not generated at run time by the OS). */
3006 if (som_section_data (section
)->is_subspace
!= 1
3007 || ((section
->flags
& (SEC_LOAD
| SEC_DEBUGGING
)) == 0))
3010 /* Seek to the proper offset within the object file and write the
3012 offset
+= som_section_data (section
)->subspace_dict
.file_loc_init_value
;
3013 if (bfd_seek (abfd
, offset
, SEEK_SET
) == -1)
3015 bfd_error
= system_call_error
;
3019 if (bfd_write ((PTR
) location
, 1, count
, abfd
) != count
)
3021 bfd_error
= system_call_error
;
3028 som_set_arch_mach (abfd
, arch
, machine
)
3030 enum bfd_architecture arch
;
3031 unsigned long machine
;
3033 /* Allow any architecture to be supported by the SOM backend */
3034 return bfd_default_set_arch_mach (abfd
, arch
, machine
);
3038 som_find_nearest_line (abfd
, section
, symbols
, offset
, filename_ptr
,
3039 functionname_ptr
, line_ptr
)
3044 CONST
char **filename_ptr
;
3045 CONST
char **functionname_ptr
;
3046 unsigned int *line_ptr
;
3048 fprintf (stderr
, "som_find_nearest_line unimplemented\n");
3055 som_sizeof_headers (abfd
, reloc
)
3059 fprintf (stderr
, "som_sizeof_headers unimplemented\n");
3065 /* Return information about SOM symbol SYMBOL in RET. */
3068 som_get_symbol_info (ignore_abfd
, symbol
, ret
)
3069 bfd
*ignore_abfd
; /* Ignored. */
3073 bfd_symbol_info (symbol
, ret
);
3076 /* End of miscellaneous support functions. */
3078 #define som_bfd_debug_info_start bfd_void
3079 #define som_bfd_debug_info_end bfd_void
3080 #define som_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
3082 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
3083 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
3084 #define som_slurp_armap bfd_false
3085 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
3086 #define som_truncate_arname (void (*)())bfd_nullvoidptr
3087 #define som_write_armap 0
3089 #define som_get_lineno (struct lineno_cache_entry *(*)())bfd_nullvoidptr
3090 #define som_close_and_cleanup bfd_generic_close_and_cleanup
3091 #define som_get_section_contents bfd_generic_get_section_contents
3093 #define som_bfd_get_relocated_section_contents \
3094 bfd_generic_get_relocated_section_contents
3095 #define som_bfd_relax_section bfd_generic_relax_section
3096 #define som_bfd_seclet_link bfd_generic_seclet_link
3097 #define som_bfd_reloc_type_lookup \
3098 ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
3099 #define som_bfd_make_debug_symbol \
3100 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
3102 /* Core file support is in the hpux-core backend. */
3103 #define som_core_file_failing_command _bfd_dummy_core_file_failing_command
3104 #define som_core_file_failing_signal _bfd_dummy_core_file_failing_signal
3105 #define som_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
3107 bfd_target som_vec
=
3110 bfd_target_som_flavour
,
3111 true, /* target byte order */
3112 true, /* target headers byte order */
3113 (HAS_RELOC
| EXEC_P
| /* object flags */
3114 HAS_LINENO
| HAS_DEBUG
|
3115 HAS_SYMS
| HAS_LOCALS
| WP_TEXT
| D_PAGED
),
3116 (SEC_CODE
| SEC_DATA
| SEC_ROM
| SEC_HAS_CONTENTS
3117 | SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
3119 /* leading_symbol_char: is the first char of a user symbol
3120 predictable, and if so what is it */
3122 ' ', /* ar_pad_char */
3123 16, /* ar_max_namelen */
3124 3, /* minimum alignment */
3125 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
3126 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
3127 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* data */
3128 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
3129 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
3130 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* hdrs */
3132 som_object_p
, /* bfd_check_format */
3133 bfd_generic_archive_p
,
3139 _bfd_generic_mkarchive
,
3144 som_write_object_contents
,
3145 _bfd_write_archive_contents
,
3153 #endif /* HOST_HPPAHPUX || HOST_HPPABSD */