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 *));
173 static reloc_howto_type som_hppa_howto_table
[] =
175 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
176 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
177 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
178 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
179 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
180 {R_NO_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_NO_RELOCATION"},
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_ZEROES
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ZEROES"},
208 {R_ZEROES
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ZEROES"},
209 {R_UNINIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_UNINIT"},
210 {R_UNINIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_UNINIT"},
211 {R_RELOCATION
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RELOCATION"},
212 {R_DATA_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_ONE_SYMBOL"},
213 {R_DATA_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_ONE_SYMBOL"},
214 {R_DATA_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_PLABEL"},
215 {R_DATA_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_PLABEL"},
216 {R_SPACE_REF
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_SPACE_REF"},
217 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
218 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
219 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
220 {R_REPEATED_INIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "REPEATED_INIT"},
221 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
222 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
223 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
224 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
225 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
226 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
227 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
228 {R_PCREL_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PCREL_CALL"},
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_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
238 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
239 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
240 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
241 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
242 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
243 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
244 {R_ABS_CALL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ABS_CALL"},
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_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
254 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
255 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
256 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
257 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
258 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
259 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
260 {R_DP_RELATIVE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DP_RELATIVE"},
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_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
291 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
292 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
293 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
294 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
295 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
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_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
304 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
305 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
306 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
307 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
308 {R_CODE_ONE_SYMBOL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_ONE_SYMBOL"},
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_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
339 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
340 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
341 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
342 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
343 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
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_MILLI_REL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_MILLI_REL"},
350 {R_MILLI_REL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_MILLI_REL"},
351 {R_CODE_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_PLABEL"},
352 {R_CODE_PLABEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_PLABEL"},
353 {R_BREAKPOINT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BREAKPOINT"},
354 {R_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ENTRY"},
355 {R_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ENTRY"},
356 {R_ALT_ENTRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_ALT_ENTRY"},
357 {R_EXIT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_EXIT"},
358 {R_BEGIN_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BEGIN_TRY"},
359 {R_END_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_TRY"},
360 {R_END_TRY
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_TRY"},
361 {R_BEGIN_BRTAB
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_BEGIN_BRTAB"},
362 {R_END_BRTAB
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_END_BRTAB"},
363 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
364 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
365 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
366 {R_DATA_EXPR
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_EXPR"},
367 {R_CODE_EXPR
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_CODE_EXPR"},
368 {R_FSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_FSEL"},
369 {R_LSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_LSEL"},
370 {R_RSEL
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RSEL"},
371 {R_N_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_N_MODE"},
372 {R_S_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_S_MODE"},
373 {R_D_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_D_MODE"},
374 {R_R_MODE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_R_MODE"},
375 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
376 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
377 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
378 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
379 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
380 {R_DATA_OVERRIDE
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_DATA_OVERRIDE"},
381 {R_TRANSLATED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_TRANSLATED"},
382 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
383 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
384 {R_STATEMENT
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_STATEMENT"},
385 {R_COMP1
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP1"},
386 {R_COMP2
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP2"},
387 {R_COMP3
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_COMP3"},
388 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
389 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
390 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
391 {R_PREV_FIXUP
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_PREV_FIXUP"},
392 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
393 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
394 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
395 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
396 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
397 {R_RESERVED
, 0, 0, 32, false, 0, 0, hppa_som_reloc
, "R_RESERVED"},
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"}};
435 /* Initialize the SOM relocation queue. By definition the queue holds
436 the last four multibyte fixups. */
439 som_initialize_reloc_queue (queue
)
440 struct reloc_queue
*queue
;
442 queue
[0].reloc
= NULL
;
444 queue
[1].reloc
= NULL
;
446 queue
[2].reloc
= NULL
;
448 queue
[3].reloc
= NULL
;
452 /* Insert a new relocation into the relocation queue. */
455 som_reloc_queue_insert (p
, size
, queue
)
458 struct reloc_queue
*queue
;
460 queue
[3].reloc
= queue
[2].reloc
;
461 queue
[3].size
= queue
[2].size
;
462 queue
[2].reloc
= queue
[1].reloc
;
463 queue
[2].size
= queue
[1].size
;
464 queue
[1].reloc
= queue
[0].reloc
;
465 queue
[1].size
= queue
[0].size
;
467 queue
[0].size
= size
;
470 /* When an entry in the relocation queue is reused, the entry moves
471 to the front of the queue. */
474 som_reloc_queue_fix (queue
, index
)
475 struct reloc_queue
*queue
;
483 unsigned char *tmp1
= queue
[0].reloc
;
484 unsigned int tmp2
= queue
[0].size
;
485 queue
[0].reloc
= queue
[1].reloc
;
486 queue
[0].size
= queue
[1].size
;
487 queue
[1].reloc
= tmp1
;
488 queue
[1].size
= tmp2
;
494 unsigned char *tmp1
= queue
[0].reloc
;
495 unsigned int tmp2
= queue
[0].size
;
496 queue
[0].reloc
= queue
[2].reloc
;
497 queue
[0].size
= queue
[2].size
;
498 queue
[2].reloc
= queue
[1].reloc
;
499 queue
[2].size
= queue
[1].size
;
500 queue
[1].reloc
= tmp1
;
501 queue
[1].size
= tmp2
;
507 unsigned char *tmp1
= queue
[0].reloc
;
508 unsigned int tmp2
= queue
[0].size
;
509 queue
[0].reloc
= queue
[3].reloc
;
510 queue
[0].size
= queue
[3].size
;
511 queue
[3].reloc
= queue
[2].reloc
;
512 queue
[3].size
= queue
[2].size
;
513 queue
[2].reloc
= queue
[1].reloc
;
514 queue
[2].size
= queue
[1].size
;
515 queue
[1].reloc
= tmp1
;
516 queue
[1].size
= tmp2
;
522 /* Search for a particular relocation in the relocation queue. */
525 som_reloc_queue_find (p
, size
, queue
)
528 struct reloc_queue
*queue
;
530 if (!bcmp (p
, queue
[0].reloc
, size
)
531 && size
== queue
[0].size
)
533 if (!bcmp (p
, queue
[1].reloc
, size
)
534 && size
== queue
[1].size
)
536 if (!bcmp (p
, queue
[2].reloc
, size
)
537 && size
== queue
[2].size
)
539 if (!bcmp (p
, queue
[3].reloc
, size
)
540 && size
== queue
[3].size
)
545 static unsigned char *
546 try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, size
, queue
)
548 int *subspace_reloc_sizep
;
551 struct reloc_queue
*queue
;
553 int queue_index
= som_reloc_queue_find (p
, size
, queue
);
555 if (queue_index
!= -1)
557 /* Found this in a previous fixup. Undo the fixup we
558 just built and use R_PREV_FIXUP instead. We saved
559 a total of size - 1 bytes in the fixup stream. */
560 bfd_put_8 (abfd
, R_PREV_FIXUP
+ queue_index
, p
);
562 *subspace_reloc_sizep
+= 1;
563 som_reloc_queue_fix (queue
, queue_index
);
567 som_reloc_queue_insert (p
, size
, queue
);
568 *subspace_reloc_sizep
+= size
;
574 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
575 bytes without any relocation. Update the size of the subspace
576 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
577 current pointer into the relocation stream. */
579 static unsigned char *
580 som_reloc_skip (abfd
, skip
, p
, subspace_reloc_sizep
, queue
)
584 unsigned int *subspace_reloc_sizep
;
585 struct reloc_queue
*queue
;
587 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
588 then R_PREV_FIXUPs to get the difference down to a
590 if (skip
>= 0x1000000)
593 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 31, p
);
594 bfd_put_8 (abfd
, 0xff, p
+ 1);
595 bfd_put_16 (abfd
, 0xffff, p
+ 2);
596 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
597 while (skip
>= 0x1000000)
600 bfd_put_8 (abfd
, R_PREV_FIXUP
, p
);
602 *subspace_reloc_sizep
+= 1;
603 /* No need to adjust queue here since we are repeating the
604 most recent fixup. */
608 /* The difference must be less than 0x1000000. Use one
609 more R_NO_RELOCATION entry to get to the right difference. */
610 if ((skip
& 3) == 0 && skip
<= 0xc0000 && skip
> 0)
612 /* Difference can be handled in a simple single-byte
613 R_NO_RELOCATION entry. */
616 bfd_put_8 (abfd
, R_NO_RELOCATION
+ (skip
>> 2) - 1, p
);
617 *subspace_reloc_sizep
+= 1;
620 /* Handle it with a two byte R_NO_RELOCATION entry. */
621 else if (skip
<= 0x1000)
623 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 24 + (((skip
>> 2) - 1) >> 8), p
);
624 bfd_put_8 (abfd
, (skip
>> 2) - 1, p
+ 1);
625 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
627 /* Handle it with a three byte R_NO_RELOCATION entry. */
630 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 28 + (((skip
>> 2) - 1) >> 16), p
);
631 bfd_put_16 (abfd
, (skip
>> 2) - 1, p
+ 1);
632 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
635 /* Ugh. Punt and use a 4 byte entry. */
638 bfd_put_8 (abfd
, R_NO_RELOCATION
+ 31, p
);
639 bfd_put_8 (abfd
, skip
>> 16, p
+ 1);
640 bfd_put_16 (abfd
, skip
, p
+ 2);
641 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
646 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
647 from a BFD relocation. Update the size of the subspace relocation
648 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
649 into the relocation stream. */
651 static unsigned char *
652 som_reloc_addend (abfd
, addend
, p
, subspace_reloc_sizep
, queue
)
656 unsigned int *subspace_reloc_sizep
;
657 struct reloc_queue
*queue
;
659 if ((unsigned)(addend
) + 0x80 < 0x100)
661 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 1, p
);
662 bfd_put_8 (abfd
, addend
, p
+ 1);
663 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
665 else if ((unsigned) (addend
) + 0x8000 < 0x10000)
667 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 2, p
);
668 bfd_put_16 (abfd
, addend
, p
+ 1);
669 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
671 else if ((unsigned) (addend
) + 0x800000 < 0x1000000)
673 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 3, p
);
674 bfd_put_8 (abfd
, addend
>> 16, p
+ 1);
675 bfd_put_16 (abfd
, addend
, p
+ 2);
676 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 4, queue
);
680 bfd_put_8 (abfd
, R_DATA_OVERRIDE
+ 4, p
);
681 bfd_put_32 (abfd
, addend
, p
+ 1);
682 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 5, queue
);
687 /* Handle a single function call relocation. */
689 static unsigned char *
690 som_reloc_call (abfd
, p
, subspace_reloc_sizep
, bfd_reloc
, sym_num
, queue
)
693 unsigned int *subspace_reloc_sizep
;
696 struct reloc_queue
*queue
;
698 int arg_bits
= HPPA_R_ARG_RELOC (bfd_reloc
->addend
);
699 int rtn_bits
= arg_bits
& 0x3;
702 /* You'll never believe all this is necessary to handle relocations
703 for function calls. Having to compute and pack the argument
704 relocation bits is the real nightmare.
706 If you're interested in how this works, just forget it. You really
707 do not want to know about this braindamage. */
709 /* First see if this can be done with a "simple" relocation. Simple
710 relocations have a symbol number < 0x100 and have simple encodings
711 of argument relocations. */
725 case 1 << 8 | 1 << 6:
726 case 1 << 8 | 1 << 6 | 1:
729 case 1 << 8 | 1 << 6 | 1 << 4:
730 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
733 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
734 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
738 /* Not one of the easy encodings. This will have to be
739 handled by the more complex code below. */
745 /* Account for the return value too. */
749 /* Emit a 2 byte relocation. Then see if it can be handled
750 with a relocation which is already in the relocation queue. */
751 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ type
, p
);
752 bfd_put_8 (abfd
, sym_num
, p
+ 1);
753 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 2, queue
);
758 /* If this could not be handled with a simple relocation, then do a hard
759 one. Hard relocations occur if the symbol number was too high or if
760 the encoding of argument relocation bits is too complex. */
763 /* Don't ask about these magic sequences. I took them straight
764 from gas-1.36 which took them from the a.out man page. */
766 if ((arg_bits
>> 6 & 0xf) == 0xe)
769 type
+= (3 * (arg_bits
>> 8 & 3) + (arg_bits
>> 6 & 3)) * 40;
770 if ((arg_bits
>> 2 & 0xf) == 0xe)
773 type
+= (3 * (arg_bits
>> 4 & 3) + (arg_bits
>> 2 & 3)) * 4;
775 /* Output the first two bytes of the relocation. These describe
776 the length of the relocation and encoding style. */
777 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 10
778 + 2 * (sym_num
>= 0x100) + (type
>= 0x100),
780 bfd_put_8 (abfd
, type
, p
+ 1);
782 /* Now output the symbol index and see if this bizarre relocation
783 just happened to be in the relocation queue. */
786 bfd_put_8 (abfd
, sym_num
, p
+ 2);
787 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 3, queue
);
791 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 2);
792 bfd_put_16 (abfd
, sym_num
, p
+ 3);
793 p
= try_prev_fixup (abfd
, subspace_reloc_sizep
, p
, 5, queue
);
800 /* Return the logarithm of X, base 2, considering X unsigned.
801 Abort if X is not a power of two -- this should never happen (FIXME:
802 It will happen on corrupt executables. GDB should give an error, not
803 a coredump, in that case). */
811 /* Test for 0 or a power of 2. */
812 if (x
== 0 || x
!= (x
& -x
))
815 while ((x
>>= 1) != 0)
820 static bfd_reloc_status_type
821 hppa_som_reloc (abfd
, reloc_entry
, symbol_in
, data
, input_section
, output_bfd
)
823 arelent
*reloc_entry
;
826 asection
*input_section
;
831 reloc_entry
->address
+= input_section
->output_offset
;
837 /* Given a generic HPPA relocation type, the instruction format,
838 and a field selector, return an appropriate SOM reloation.
840 FIXME. Need to handle %RR, %LR and the like as field selectors.
841 These will need to generate multiple SOM relocations. */
844 hppa_som_gen_reloc_type (abfd
, base_type
, format
, field
)
850 int *final_type
, **final_types
;
852 final_types
= (int **) bfd_alloc_by_size_t (abfd
, sizeof (int *) * 2);
853 final_type
= (int *) bfd_alloc_by_size_t (abfd
, sizeof (int));
856 final_types
[0] = final_type
;
857 final_types
[1] = NULL
;
859 /* Default to the basic relocation passed in. */
860 *final_type
= base_type
;
865 /* PLABELs get their own relocation type. */
870 /* A PLABEL relocation that has a size of 32 bits must
871 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
873 *final_type
= R_DATA_PLABEL
;
875 *final_type
= R_CODE_PLABEL
;
877 /* A relocatoin in the data space is always a full 32bits. */
878 else if (format
== 32)
879 *final_type
= R_DATA_ONE_SYMBOL
;
884 /* More PLABEL special cases. */
888 *final_type
= R_DATA_PLABEL
;
892 case R_HPPA_ABS_CALL
:
893 case R_HPPA_PCREL_CALL
:
895 case R_HPPA_COMPLEX_PCREL_CALL
:
896 case R_HPPA_COMPLEX_ABS_CALL
:
897 /* Right now we can default all these. */
903 /* Return the address of the correct entry in the PA SOM relocation
906 static reloc_howto_type
*
907 som_bfd_reloc_type_lookup (arch
, code
)
908 bfd_arch_info_type
*arch
;
909 bfd_reloc_code_real_type code
;
911 if ((int) code
< (int) R_NO_RELOCATION
+ 255)
913 BFD_ASSERT ((int) som_hppa_howto_table
[(int) code
].type
== (int) code
);
914 return &som_hppa_howto_table
[(int) code
];
917 return (reloc_howto_type
*) 0;
920 /* Perform some initialization for an object. Save results of this
921 initialization in the BFD. */
924 som_object_setup (abfd
, file_hdrp
, aux_hdrp
)
926 struct header
*file_hdrp
;
927 struct som_exec_auxhdr
*aux_hdrp
;
929 asection
*text
, *data
, *bss
;
931 /* som_mkobject will set bfd_error if som_mkobject fails. */
932 if (som_mkobject (abfd
) != true)
935 /* Make the standard .text, .data, and .bss sections so that tools
936 which assume those names work (size for example). They will have
937 no contents, but the sizes and such will reflect those of the
938 $CODE$, $DATA$, and $BSS$ subspaces respectively.
940 FIXME: Should check return status from bfd_make_section calls below. */
942 text
= bfd_make_section (abfd
, ".text");
943 data
= bfd_make_section (abfd
, ".data");
944 bss
= bfd_make_section (abfd
, ".bss");
946 text
->_raw_size
= aux_hdrp
->exec_tsize
;
947 data
->_raw_size
= aux_hdrp
->exec_dsize
;
948 bss
->_raw_size
= aux_hdrp
->exec_bsize
;
950 text
->flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_CODE
);
951 data
->flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
);
952 bss
->flags
= (SEC_ALLOC
| SEC_IS_COMMON
);
954 /* The virtual memory addresses of the sections */
955 text
->vma
= aux_hdrp
->exec_tmem
;
956 data
->vma
= aux_hdrp
->exec_dmem
;
957 bss
->vma
= aux_hdrp
->exec_bfill
;
959 /* The file offsets of the sections */
960 text
->filepos
= aux_hdrp
->exec_tfile
;
961 data
->filepos
= aux_hdrp
->exec_dfile
;
963 /* The file offsets of the relocation info */
964 text
->rel_filepos
= 0;
965 data
->rel_filepos
= 0;
967 /* Set BFD flags based on what information is available in the SOM. */
968 abfd
->flags
= NO_FLAGS
;
969 if (! file_hdrp
->entry_offset
)
970 abfd
->flags
|= HAS_RELOC
;
972 abfd
->flags
|= EXEC_P
;
973 if (file_hdrp
->symbol_total
)
974 abfd
->flags
|= HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
;
976 bfd_get_start_address (abfd
) = aux_hdrp
->exec_entry
;
977 bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 0);
978 bfd_get_symcount (abfd
) = file_hdrp
->symbol_total
;
980 /* Initialize the saved symbol table and string table to NULL.
981 Save important offsets and sizes from the SOM header into
983 obj_som_stringtab (abfd
) = (char *) NULL
;
984 obj_som_symtab (abfd
) = (som_symbol_type
*) NULL
;
985 obj_som_stringtab_size (abfd
) = file_hdrp
->symbol_strings_size
;
986 obj_som_sym_filepos (abfd
) = file_hdrp
->symbol_location
;
987 obj_som_str_filepos (abfd
) = file_hdrp
->symbol_strings_location
;
988 obj_som_reloc_filepos (abfd
) = file_hdrp
->fixup_request_location
;
993 /* Create a new BFD section for NAME. If NAME already exists, then create a
994 new unique name, with NAME as the prefix. This exists because SOM .o files
995 may have more than one $CODE$ subspace. */
998 make_unique_section (abfd
, name
, num
)
1007 sect
= bfd_make_section (abfd
, name
);
1010 sprintf (altname
, "%s-%d", name
, num
++);
1011 sect
= bfd_make_section (abfd
, altname
);
1014 newname
= bfd_alloc (abfd
, strlen (sect
->name
) + 1);
1015 strcpy (newname
, sect
->name
);
1017 sect
->name
= newname
;
1021 /* Convert all of the space and subspace info into BFD sections. Each space
1022 contains a number of subspaces, which in turn describe the mapping between
1023 regions of the exec file, and the address space that the program runs in.
1024 BFD sections which correspond to spaces will overlap the sections for the
1025 associated subspaces. */
1028 setup_sections (abfd
, file_hdr
)
1030 struct header
*file_hdr
;
1032 char *space_strings
;
1034 unsigned int total_subspaces
= 0;
1036 /* First, read in space names */
1038 space_strings
= alloca (file_hdr
->space_strings_size
);
1042 if (bfd_seek (abfd
, file_hdr
->space_strings_location
, SEEK_SET
) < 0)
1044 if (bfd_read (space_strings
, 1, file_hdr
->space_strings_size
, abfd
)
1045 != file_hdr
->space_strings_size
)
1048 /* Loop over all of the space dictionaries, building up sections */
1049 for (space_index
= 0; space_index
< file_hdr
->space_total
; space_index
++)
1051 struct space_dictionary_record space
;
1052 struct subspace_dictionary_record subspace
, save_subspace
;
1054 asection
*space_asect
;
1056 /* Read the space dictionary element */
1057 if (bfd_seek (abfd
, file_hdr
->space_location
1058 + space_index
* sizeof space
, SEEK_SET
) < 0)
1060 if (bfd_read (&space
, 1, sizeof space
, abfd
) != sizeof space
)
1063 /* Setup the space name string */
1064 space
.name
.n_name
= space
.name
.n_strx
+ space_strings
;
1066 /* Make a section out of it */
1067 space_asect
= make_unique_section (abfd
, space
.name
.n_name
, space_index
);
1071 /* Now, read in the first subspace for this space */
1072 if (bfd_seek (abfd
, file_hdr
->subspace_location
1073 + space
.subspace_index
* sizeof subspace
,
1076 if (bfd_read (&subspace
, 1, sizeof subspace
, abfd
) != sizeof subspace
)
1078 /* Seek back to the start of the subspaces for loop below */
1079 if (bfd_seek (abfd
, file_hdr
->subspace_location
1080 + space
.subspace_index
* sizeof subspace
,
1084 /* Setup the start address and file loc from the first subspace record */
1085 space_asect
->vma
= subspace
.subspace_start
;
1086 space_asect
->filepos
= subspace
.file_loc_init_value
;
1087 space_asect
->alignment_power
= log2 (subspace
.alignment
);
1089 /* Initialize save_subspace so we can reliably determine if this
1090 loop placed any useful values into it. */
1091 bzero (&save_subspace
, sizeof (struct subspace_dictionary_record
));
1093 /* Loop over the rest of the subspaces, building up more sections */
1094 for (subspace_index
= 0; subspace_index
< space
.subspace_quantity
;
1097 asection
*subspace_asect
;
1099 /* Read in the next subspace */
1100 if (bfd_read (&subspace
, 1, sizeof subspace
, abfd
)
1104 /* Setup the subspace name string */
1105 subspace
.name
.n_name
= subspace
.name
.n_strx
+ space_strings
;
1107 /* Make a section out of this subspace */
1108 subspace_asect
= make_unique_section (abfd
, subspace
.name
.n_name
,
1109 space
.subspace_index
+ subspace_index
);
1111 if (!subspace_asect
)
1114 /* Keep an easy mapping between subspaces and sections. */
1115 som_section_data (subspace_asect
)->subspace_index
1116 = total_subspaces
++;
1118 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1119 by the access_control_bits in the subspace header. */
1120 switch (subspace
.access_control_bits
>> 4)
1122 /* Readonly data. */
1124 subspace_asect
->flags
|= SEC_DATA
| SEC_READONLY
;
1129 subspace_asect
->flags
|= SEC_DATA
;
1132 /* Readonly code and the gateways.
1133 Gateways have other attributes which do not map
1134 into anything BFD knows about. */
1140 subspace_asect
->flags
|= SEC_CODE
| SEC_READONLY
;
1143 /* dynamic (writable) code. */
1145 subspace_asect
->flags
|= SEC_CODE
;
1149 if (subspace
.dup_common
|| subspace
.is_common
)
1150 subspace_asect
->flags
|= SEC_IS_COMMON
;
1152 subspace_asect
->flags
|= SEC_HAS_CONTENTS
;
1153 if (subspace
.is_loadable
)
1154 subspace_asect
->flags
|= SEC_ALLOC
| SEC_LOAD
;
1155 if (subspace
.code_only
)
1156 subspace_asect
->flags
|= SEC_CODE
;
1158 /* This subspace has relocations.
1159 The fixup_request_quantity is a byte count for the number of
1160 entries in the relocation stream; it is not the actual number
1161 of relocations in the subspace. */
1162 if (subspace
.fixup_request_quantity
!= 0)
1164 subspace_asect
->flags
|= SEC_RELOC
;
1165 subspace_asect
->rel_filepos
= subspace
.fixup_request_index
;
1166 som_section_data (subspace_asect
)->reloc_size
1167 = subspace
.fixup_request_quantity
;
1168 /* We can not determine this yet. When we read in the
1169 relocation table the correct value will be filled in. */
1170 subspace_asect
->reloc_count
= -1;
1173 /* Update save_subspace if appropriate. */
1174 if (subspace
.file_loc_init_value
> save_subspace
.file_loc_init_value
)
1175 save_subspace
= subspace
;
1177 subspace_asect
->vma
= subspace
.subspace_start
;
1178 subspace_asect
->_cooked_size
= subspace
.subspace_length
;
1179 subspace_asect
->_raw_size
= subspace
.initialization_length
;
1180 subspace_asect
->alignment_power
= log2 (subspace
.alignment
);
1181 subspace_asect
->filepos
= subspace
.file_loc_init_value
;
1184 /* Yow! there is no subspace within the space which actually
1185 has initialized information in it; this should never happen
1186 as far as I know. */
1187 if (!save_subspace
.file_loc_init_value
)
1190 /* Setup the sizes for the space section based upon the info in the
1191 last subspace of the space. */
1192 space_asect
->_cooked_size
= save_subspace
.subspace_start
1193 - space_asect
->vma
+ save_subspace
.subspace_length
;
1194 space_asect
->_raw_size
= save_subspace
.file_loc_init_value
1195 - space_asect
->filepos
+ save_subspace
.initialization_length
;
1200 /* Read in a SOM object and make it into a BFD. */
1206 struct header file_hdr
;
1207 struct som_exec_auxhdr aux_hdr
;
1209 if (bfd_read ((PTR
) & file_hdr
, 1, FILE_HDR_SIZE
, abfd
) != FILE_HDR_SIZE
)
1211 bfd_error
= system_call_error
;
1215 if (!_PA_RISC_ID (file_hdr
.system_id
))
1217 bfd_error
= wrong_format
;
1221 switch (file_hdr
.a_magic
)
1238 bfd_error
= wrong_format
;
1242 if (file_hdr
.version_id
!= VERSION_ID
1243 && file_hdr
.version_id
!= NEW_VERSION_ID
)
1245 bfd_error
= wrong_format
;
1249 /* If the aux_header_size field in the file header is zero, then this
1250 object is an incomplete executable (a .o file). Do not try to read
1251 a non-existant auxiliary header. */
1252 bzero (&aux_hdr
, sizeof (struct som_exec_auxhdr
));
1253 if (file_hdr
.aux_header_size
!= 0)
1255 if (bfd_read ((PTR
) & aux_hdr
, 1, AUX_HDR_SIZE
, abfd
) != AUX_HDR_SIZE
)
1257 bfd_error
= wrong_format
;
1262 if (!setup_sections (abfd
, &file_hdr
))
1264 /* setup_sections does not bubble up a bfd error code. */
1265 bfd_error
= bad_value
;
1269 /* This appears to be a valid SOM object. Do some initialization. */
1270 return som_object_setup (abfd
, &file_hdr
, &aux_hdr
);
1273 /* Create a SOM object. */
1279 /* Allocate memory to hold backend information. */
1280 abfd
->tdata
.som_data
= (struct som_data_struct
*)
1281 bfd_zalloc (abfd
, sizeof (struct som_data_struct
));
1282 if (abfd
->tdata
.som_data
== NULL
)
1284 bfd_error
= no_memory
;
1287 obj_som_file_hdr (abfd
) = bfd_zalloc (abfd
, sizeof (struct header
));
1288 if (obj_som_file_hdr (abfd
) == NULL
)
1291 bfd_error
= no_memory
;
1297 /* Initialize some information in the file header. This routine makes
1298 not attempt at doing the right thing for a full executable; it
1299 is only meant to handle relocatable objects. */
1302 som_prep_headers (abfd
)
1305 struct header
*file_hdr
= obj_som_file_hdr (abfd
);
1308 /* FIXME. This should really be conditional based on whether or not
1309 PA1.1 instructions/registers have been used. */
1310 file_hdr
->system_id
= HP9000S800_ID
;
1312 /* FIXME. Only correct for building relocatable objects. */
1313 if (abfd
->flags
& EXEC_P
)
1316 file_hdr
->a_magic
= RELOC_MAGIC
;
1318 /* Only new format SOM is supported. */
1319 file_hdr
->version_id
= NEW_VERSION_ID
;
1321 /* These fields are optional, and embedding timestamps is not always
1322 a wise thing to do, it makes comparing objects during a multi-stage
1323 bootstrap difficult. */
1324 file_hdr
->file_time
.secs
= 0;
1325 file_hdr
->file_time
.nanosecs
= 0;
1327 if (abfd
->flags
& EXEC_P
)
1331 file_hdr
->entry_space
= 0;
1332 file_hdr
->entry_subspace
= 0;
1333 file_hdr
->entry_offset
= 0;
1336 /* FIXME. I do not know if we ever need to put anything other
1337 than zero in this field. */
1338 file_hdr
->presumed_dp
= 0;
1340 /* Now iterate over the sections translating information from
1341 BFD sections to SOM spaces/subspaces. */
1343 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1345 /* Ignore anything which has not been marked as a space or
1347 if (som_section_data (section
)->is_space
== 0
1349 && som_section_data (section
)->is_subspace
== 0)
1352 if (som_section_data (section
)->is_space
)
1354 /* Set space attributes. Note most attributes of SOM spaces
1355 are set based on the subspaces it contains. */
1356 som_section_data (section
)->space_dict
.loader_fix_index
= -1;
1357 som_section_data (section
)->space_dict
.init_pointer_index
= -1;
1361 /* Set subspace attributes. Basic stuff is done here, additional
1362 attributes are filled in later as more information becomes
1364 if (section
->flags
& SEC_IS_COMMON
)
1366 som_section_data (section
)->subspace_dict
.dup_common
= 1;
1367 som_section_data (section
)->subspace_dict
.is_common
= 1;
1370 if (section
->flags
& SEC_ALLOC
)
1371 som_section_data (section
)->subspace_dict
.is_loadable
= 1;
1373 if (section
->flags
& SEC_CODE
)
1374 som_section_data (section
)->subspace_dict
.code_only
= 1;
1376 som_section_data (section
)->subspace_dict
.subspace_start
=
1378 som_section_data (section
)->subspace_dict
.subspace_length
=
1379 bfd_section_size (abfd
, section
);
1380 som_section_data (section
)->subspace_dict
.initialization_length
=
1381 bfd_section_size (abfd
, section
);
1382 som_section_data (section
)->subspace_dict
.alignment
=
1383 1 << section
->alignment_power
;
1389 /* Count and return the number of spaces attached to the given BFD. */
1391 static unsigned long
1392 som_count_spaces (abfd
)
1398 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1399 count
+= som_section_data (section
)->is_space
;
1404 /* Count the number of subspaces attached to the given BFD. */
1406 static unsigned long
1407 som_count_subspaces (abfd
)
1413 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1414 count
+= som_section_data (section
)->is_subspace
;
1419 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
1421 We desire symbols to be ordered starting with the symbol with the
1422 highest relocation count down to the symbol with the lowest relocation
1423 count. Doing so compacts the relocation stream. */
1426 compare_syms (sym1
, sym2
)
1431 unsigned int count1
, count2
;
1433 /* Get relocation count for each symbol. Note that the count
1434 is stored in the udata pointer for section symbols! */
1435 if ((*sym1
)->flags
& BSF_SECTION_SYM
)
1436 count1
= (int)(*sym1
)->udata
;
1438 count1
= (*som_symbol_data ((*sym1
)))->reloc_count
;
1440 if ((*sym2
)->flags
& BSF_SECTION_SYM
)
1441 count2
= (int)(*sym2
)->udata
;
1443 count2
= (*som_symbol_data ((*sym2
)))->reloc_count
;
1445 /* Return the appropriate value. */
1446 if (count1
< count2
)
1448 else if (count1
> count2
)
1453 /* Perform various work in preparation for emitting the fixup stream. */
1456 som_prep_for_fixups (abfd
, syms
, num_syms
)
1459 unsigned long num_syms
;
1464 /* Most SOM relocations involving a symbol have a length which is
1465 dependent on the index of the symbol. So symbols which are
1466 used often in relocations should have a small index. */
1468 /* First initialize the counters for each symbol. */
1469 for (i
= 0; i
< num_syms
; i
++)
1471 /* Handle a section symbol; these have no pointers back to the
1472 SOM symbol info. So we just use the pointer field (udata)
1473 to hold the relocation count.
1475 FIXME. While we're here set the name of any section symbol
1476 to something which will not screw GDB. How do other formats
1477 deal with this?!? */
1478 if (som_symbol_data (syms
[i
]) == NULL
)
1480 syms
[i
]->flags
|= BSF_SECTION_SYM
;
1481 syms
[i
]->name
= "L$0\002";
1482 syms
[i
]->udata
= (PTR
) 0;
1485 (*som_symbol_data (syms
[i
]))->reloc_count
= 0;
1488 /* Now that the counters are initialized, make a weighted count
1489 of how often a given symbol is used in a relocation. */
1490 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1494 /* Does this section have any relocations? */
1495 if (section
->reloc_count
<= 0)
1498 /* Walk through each relocation for this section. */
1499 for (i
= 1; i
< section
->reloc_count
; i
++)
1501 arelent
*reloc
= section
->orelocation
[i
];
1504 /* If no symbol, then there is no counter to increase. */
1505 if (reloc
->sym_ptr_ptr
== NULL
)
1508 /* Scaling to encourage symbols involved in R_DP_RELATIVE
1509 and R_CODE_ONE_SYMBOL relocations to come first. These
1510 two relocations have single byte versions if the symbol
1511 index is very small. */
1512 if (reloc
->howto
->type
== R_DP_RELATIVE
1513 || reloc
->howto
->type
== R_CODE_ONE_SYMBOL
)
1518 /* Handle section symbols by ramming the count in the udata
1519 field. It will not be used and the count is very important
1520 for these symbols. */
1521 if ((*reloc
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
)
1523 (*reloc
->sym_ptr_ptr
)->udata
=
1524 (PTR
) ((int) (*reloc
->sym_ptr_ptr
)->udata
+ scale
);
1528 /* A normal symbol. Increment the count. */
1529 (*som_symbol_data ((*reloc
->sym_ptr_ptr
)))->reloc_count
+= scale
;
1533 /* Now sort the symbols. */
1534 qsort (syms
, num_syms
, sizeof (asymbol
*), compare_syms
);
1536 /* Compute the symbol indexes, they will be needed by the relocation
1538 for (i
= 0; i
< num_syms
; i
++)
1540 /* A section symbol. Again, there is no pointer to backend symbol
1541 information, so we reuse (abuse) the udata field again. */
1542 if (syms
[i
]->flags
& BSF_SECTION_SYM
)
1543 syms
[i
]->udata
= (PTR
) i
;
1545 (*som_symbol_data (syms
[i
]))->index
= i
;
1550 som_write_fixups (abfd
, current_offset
, total_reloc_sizep
)
1552 unsigned long current_offset
;
1553 unsigned int *total_reloc_sizep
;
1556 unsigned char *tmp_space
, *p
;
1557 unsigned int total_reloc_size
= 0;
1558 unsigned int subspace_reloc_size
= 0;
1559 unsigned int num_spaces
= obj_som_file_hdr (abfd
)->space_total
;
1560 asection
*section
= abfd
->sections
;
1562 /* Get a chunk of memory that we can use as buffer space, then throw
1564 tmp_space
= alloca (SOM_TMP_BUFSIZE
);
1565 bzero (tmp_space
, SOM_TMP_BUFSIZE
);
1568 /* All the fixups for a particular subspace are emitted in a single
1569 stream. All the subspaces for a particular space are emitted
1572 So, to get all the locations correct one must iterate through all the
1573 spaces, for each space iterate through its subspaces and output a
1575 for (i
= 0; i
< num_spaces
; i
++)
1577 asection
*subsection
;
1580 while (som_section_data (section
)->is_space
== 0)
1581 section
= section
->next
;
1583 /* Now iterate through each of its subspaces. */
1584 for (subsection
= abfd
->sections
;
1586 subsection
= subsection
->next
)
1590 /* Find a subspace of this space. */
1591 if (som_section_data (subsection
)->is_subspace
== 0
1592 || som_section_data (subsection
)->containing_space
!= section
)
1595 /* If this subspace had no relocations, then we're finished
1597 if (subsection
->reloc_count
<= 0)
1599 som_section_data (subsection
)->subspace_dict
.fixup_request_index
1604 /* This subspace has some relocations. Put the relocation stream
1605 index into the subspace record. */
1606 som_section_data (subsection
)->subspace_dict
.fixup_request_index
1609 /* To make life easier start over with a clean slate for
1610 each subspace. Seek to the start of the relocation stream
1611 for this subspace in preparation for writing out its fixup
1613 if (bfd_seek (abfd
, current_offset
+ total_reloc_size
, SEEK_SET
) != 0)
1615 bfd_error
= system_call_error
;
1619 /* Buffer space has already been allocated. Just perform some
1620 initialization here. */
1622 subspace_reloc_size
= 0;
1624 som_initialize_reloc_queue (reloc_queue
);
1626 /* Translate each BFD relocation into one or more SOM
1628 for (j
= 0; j
< subsection
->reloc_count
; j
++)
1630 arelent
*bfd_reloc
= subsection
->orelocation
[j
];
1634 /* Get the symbol number. Remember it's stored in a
1635 special place for section symbols. */
1636 if ((*bfd_reloc
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
)
1637 sym_num
= (int) (*bfd_reloc
->sym_ptr_ptr
)->udata
;
1639 sym_num
= (*som_symbol_data ((*bfd_reloc
->sym_ptr_ptr
)))->index
;
1641 /* If there is not enough room for the next couple relocations,
1642 then dump the current buffer contents now. Also reinitialize
1643 the relocation queue.
1645 FIXME. We assume here that no BFD relocation will expand
1646 to more than 100 bytes of SOM relocations. This should (?!?)
1648 if (p
- tmp_space
+ 100 > SOM_TMP_BUFSIZE
)
1650 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1653 bfd_error
= system_call_error
;
1657 som_initialize_reloc_queue (reloc_queue
);
1660 /* Emit R_NO_RELOCATION fixups to map any bytes which were
1662 skip
= bfd_reloc
->address
- reloc_offset
;
1663 p
= som_reloc_skip (abfd
, skip
, p
,
1664 &subspace_reloc_size
, reloc_queue
);
1666 /* Update reloc_offset for the next iteration.
1668 Note R_ENTRY and R_EXIT relocations are just markers,
1669 they do not consume input bytes. */
1670 if (bfd_reloc
->howto
->type
!= R_ENTRY
1671 && bfd_reloc
->howto
->type
!= R_EXIT
)
1672 reloc_offset
= bfd_reloc
->address
+ 4;
1674 reloc_offset
= bfd_reloc
->address
;
1677 /* Now the actual relocation we care about. */
1678 switch (bfd_reloc
->howto
->type
)
1682 p
= som_reloc_call (abfd
, p
, &subspace_reloc_size
,
1683 bfd_reloc
, sym_num
, reloc_queue
);
1686 case R_CODE_ONE_SYMBOL
:
1688 /* Account for any addend. */
1689 if (bfd_reloc
->addend
)
1690 p
= som_reloc_addend (abfd
, bfd_reloc
->addend
, p
,
1691 &subspace_reloc_size
, reloc_queue
);
1695 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ sym_num
, p
);
1696 subspace_reloc_size
+= 1;
1699 else if (sym_num
< 0x100)
1701 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 32, p
);
1702 bfd_put_8 (abfd
, sym_num
, p
+ 1);
1703 p
= try_prev_fixup (abfd
, &subspace_reloc_size
, p
,
1706 else if (sym_num
< 0x10000000)
1708 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 33, p
);
1709 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 1);
1710 bfd_put_16 (abfd
, sym_num
, p
+ 2);
1711 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1718 case R_DATA_ONE_SYMBOL
:
1721 /* Account for any addend. */
1722 if (bfd_reloc
->addend
)
1723 p
= som_reloc_addend (abfd
, bfd_reloc
->addend
, p
,
1724 &subspace_reloc_size
, reloc_queue
);
1726 if (sym_num
< 0x100)
1728 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
, p
);
1729 bfd_put_8 (abfd
, sym_num
, p
+ 1);
1730 p
= try_prev_fixup (abfd
, &subspace_reloc_size
, p
,
1733 else if (sym_num
< 0x10000000)
1735 bfd_put_8 (abfd
, bfd_reloc
->howto
->type
+ 1, p
);
1736 bfd_put_8 (abfd
, sym_num
>> 16, p
+ 1);
1737 bfd_put_16 (abfd
, sym_num
, p
+ 2);
1738 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1748 = (int *) (*som_symbol_data ((*bfd_reloc
->sym_ptr_ptr
)))->unwind
;
1749 bfd_put_8 (abfd
, R_ENTRY
, p
);
1750 bfd_put_32 (abfd
, descp
[0], p
+ 1);
1751 bfd_put_32 (abfd
, descp
[1], p
+ 5);
1752 p
= try_prev_fixup (abfd
, &subspace_reloc_size
,
1758 bfd_put_8 (abfd
, R_EXIT
, p
);
1759 subspace_reloc_size
+= 1;
1763 /* Put a "R_RESERVED" relocation in the stream if
1764 we hit something we do not understand. The linker
1765 will complain loudly if this ever happens. */
1767 bfd_put_8 (abfd
, 0xff, p
);
1768 subspace_reloc_size
+= 1;
1773 /* Last BFD relocation for a subspace has been processed.
1774 Map the rest of the subspace with R_NO_RELOCATION fixups. */
1775 p
= som_reloc_skip (abfd
, bfd_section_size (abfd
, subsection
)
1777 p
, &subspace_reloc_size
, reloc_queue
);
1779 /* Scribble out the relocations. */
1780 if (bfd_write ((PTR
) tmp_space
, p
- tmp_space
, 1, abfd
)
1783 bfd_error
= system_call_error
;
1788 total_reloc_size
+= subspace_reloc_size
;
1789 som_section_data (subsection
)->subspace_dict
.fixup_request_quantity
1790 = subspace_reloc_size
;
1792 section
= section
->next
;
1794 *total_reloc_sizep
= total_reloc_size
;
1798 /* Finally, scribble out the various headers to the disk. */
1801 som_write_headers (abfd
)
1804 int num_spaces
= som_count_spaces (abfd
);
1806 int subspace_index
= 0;
1810 /* Subspaces are written first so that we can set up information
1811 about them in their containing spaces as the subspace is written. */
1813 /* Seek to the start of the subspace dictionary records. */
1814 location
= obj_som_file_hdr (abfd
)->subspace_location
;
1815 bfd_seek (abfd
, location
, SEEK_SET
);
1816 section
= abfd
->sections
;
1817 /* Now for each loadable space write out records for its subspaces. */
1818 for (i
= 0; i
< num_spaces
; i
++)
1820 asection
*subsection
;
1823 while (som_section_data (section
)->is_space
== 0)
1824 section
= section
->next
;
1826 /* Now look for all its subspaces. */
1827 for (subsection
= abfd
->sections
;
1829 subsection
= subsection
->next
)
1832 /* Skip any section which does not correspond to a space
1833 or subspace. Or does not have SEC_ALLOC set (and therefore
1834 has no real bits on the disk). */
1835 if (som_section_data (subsection
)->is_subspace
== 0
1836 || som_section_data (subsection
)->containing_space
!= section
1837 || (subsection
->flags
& SEC_ALLOC
) == 0)
1840 /* If this is the first subspace for this space, then save
1841 the index of the subspace in its containing space. Also
1842 set "is_loadable" in the containing space. */
1844 if (som_section_data (section
)->space_dict
.subspace_quantity
== 0)
1846 som_section_data (section
)->space_dict
.is_loadable
= 1;
1847 som_section_data (section
)->space_dict
.subspace_index
1851 /* Increment the number of subspaces seen and the number of
1852 subspaces contained within the current space. */
1854 som_section_data (section
)->space_dict
.subspace_quantity
++;
1856 /* Mark the index of the current space within the subspace's
1857 dictionary record. */
1858 som_section_data (subsection
)->subspace_dict
.space_index
= i
;
1860 /* Dump the current subspace header. */
1861 if (bfd_write ((PTR
) &som_section_data (subsection
)->subspace_dict
,
1862 sizeof (struct subspace_dictionary_record
), 1, abfd
)
1863 != sizeof (struct subspace_dictionary_record
))
1865 bfd_error
= system_call_error
;
1869 /* Goto the next section. */
1870 section
= section
->next
;
1873 /* Now repeat the process for unloadable subspaces. */
1874 section
= abfd
->sections
;
1875 /* Now for each space write out records for its subspaces. */
1876 for (i
= 0; i
< num_spaces
; i
++)
1878 asection
*subsection
;
1881 while (som_section_data (section
)->is_space
== 0)
1882 section
= section
->next
;
1884 /* Now look for all its subspaces. */
1885 for (subsection
= abfd
->sections
;
1887 subsection
= subsection
->next
)
1890 /* Skip any section which does not correspond to a space or
1891 subspace, or which SEC_ALLOC set (and therefore handled
1892 in the loadable spaces/subspaces code above. */
1894 if (som_section_data (subsection
)->is_subspace
== 0
1895 || som_section_data (subsection
)->containing_space
!= section
1896 || (subsection
->flags
& SEC_ALLOC
) != 0)
1899 /* If this is the first subspace for this space, then save
1900 the index of the subspace in its containing space. Clear
1903 if (som_section_data (section
)->space_dict
.subspace_quantity
== 0)
1905 som_section_data (section
)->space_dict
.is_loadable
= 0;
1906 som_section_data (section
)->space_dict
.subspace_index
1910 /* Increment the number of subspaces seen and the number of
1911 subspaces contained within the current space. */
1912 som_section_data (section
)->space_dict
.subspace_quantity
++;
1915 /* Mark the index of the current space within the subspace's
1916 dictionary record. */
1917 som_section_data (subsection
)->subspace_dict
.space_index
= i
;
1919 /* Dump this subspace header. */
1920 if (bfd_write ((PTR
) &som_section_data (subsection
)->subspace_dict
,
1921 sizeof (struct subspace_dictionary_record
), 1, abfd
)
1922 != sizeof (struct subspace_dictionary_record
))
1924 bfd_error
= system_call_error
;
1928 /* Goto the next section. */
1929 section
= section
->next
;
1932 /* All the subspace dictiondary records are written, and all the
1933 fields are set up in the space dictionary records.
1935 Seek to the right location and start writing the space
1936 dictionary records. */
1937 location
= obj_som_file_hdr (abfd
)->space_location
;
1938 bfd_seek (abfd
, location
, SEEK_SET
);
1940 section
= abfd
->sections
;
1941 for (i
= 0; i
< num_spaces
; i
++)
1945 while (som_section_data (section
)->is_space
== 0)
1946 section
= section
->next
;
1948 /* Dump its header */
1949 if (bfd_write ((PTR
) &som_section_data (section
)->space_dict
,
1950 sizeof (struct space_dictionary_record
), 1, abfd
)
1951 != sizeof (struct space_dictionary_record
))
1953 bfd_error
= system_call_error
;
1957 /* Goto the next section. */
1958 section
= section
->next
;
1961 /* Only thing left to do is write out the file header. It is always
1962 at location zero. Seek there and write it. */
1963 bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
);
1964 if (bfd_write ((PTR
) obj_som_file_hdr (abfd
),
1965 sizeof (struct header
), 1, abfd
)
1966 != sizeof (struct header
))
1968 bfd_error
= system_call_error
;
1974 /* Compute and return the checksum for a SOM file header. */
1976 static unsigned long
1977 som_compute_checksum (abfd
)
1980 unsigned long checksum
, count
, i
;
1981 unsigned long *buffer
= (unsigned long *) obj_som_file_hdr (abfd
);
1984 count
= sizeof (struct header
) / sizeof (unsigned long);
1985 for (i
= 0; i
< count
; i
++)
1986 checksum
^= *(buffer
+ i
);
1991 /* Build and write, in one big chunk, the entire symbol table for
1995 som_build_and_write_symbol_table (abfd
)
1998 unsigned int num_syms
= bfd_get_symcount (abfd
);
1999 file_ptr symtab_location
= obj_som_file_hdr (abfd
)->symbol_location
;
2000 asymbol
**bfd_syms
= bfd_get_outsymbols (abfd
);
2001 struct symbol_dictionary_record
*som_symtab
;
2004 /* Compute total symbol table size and allocate a chunk of memory
2005 to hold the symbol table as we build it. */
2006 symtab_size
= num_syms
* sizeof (struct symbol_dictionary_record
);
2007 som_symtab
= (struct symbol_dictionary_record
*) alloca (symtab_size
);
2008 bzero (som_symtab
, symtab_size
);
2010 /* Walk over each symbol. */
2011 for (i
= 0; i
< num_syms
; i
++)
2013 /* This is really an index into the symbol strings table.
2014 By the time we get here, the index has already been
2015 computed and stored into the name field in the BFD symbol. */
2016 som_symtab
[i
].name
.n_strx
= (int) bfd_syms
[i
]->name
;
2018 /* The HP SOM linker requires detailed type information about
2019 all symbols (including undefined symbols!). Unfortunately,
2020 the type specified in an import/export statement does not
2021 always match what the linker wants. Severe braindamage. */
2023 /* Section symbols will not have a SOM symbol type assigned to
2024 them yet. Assign all section symbols type ST_DATA. */
2025 if (bfd_syms
[i
]->flags
& BSF_SECTION_SYM
)
2026 som_symtab
[i
].symbol_type
= ST_DATA
;
2029 /* Common symbols must have scope SS_UNSAT and type
2030 ST_STORAGE or the linker will choke. */
2031 if (bfd_syms
[i
]->section
== &bfd_com_section
)
2033 som_symtab
[i
].symbol_scope
= SS_UNSAT
;
2034 som_symtab
[i
].symbol_type
= ST_STORAGE
;
2037 /* It is possible to have a symbol without an associated
2038 type. This happens if the user imported the symbol
2039 without a type and the symbol was never defined
2040 locally. If BSF_FUNCTION is set for this symbol, then
2041 assign it type ST_CODE (the HP linker requires undefined
2042 external functions to have type ST_CODE rather than ST_ENTRY. */
2043 else if (((*som_symbol_data (bfd_syms
[i
]))->som_type
2044 == SYMBOL_TYPE_UNKNOWN
)
2045 && (bfd_syms
[i
]->section
== &bfd_und_section
)
2046 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
))
2047 som_symtab
[i
].symbol_type
= ST_CODE
;
2049 /* Handle function symbols which were defined in this file.
2050 They should have type ST_ENTRY. Also retrieve the argument
2051 relocation bits from the SOM backend information. */
2052 else if (((*som_symbol_data (bfd_syms
[i
]))->som_type
2053 == SYMBOL_TYPE_ENTRY
)
2054 || (((*som_symbol_data (bfd_syms
[i
]))->som_type
2055 == SYMBOL_TYPE_CODE
)
2056 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
))
2057 || (((*som_symbol_data (bfd_syms
[i
]))->som_type
2058 == SYMBOL_TYPE_UNKNOWN
)
2059 && (bfd_syms
[i
]->flags
& BSF_FUNCTION
)))
2061 som_symtab
[i
].symbol_type
= ST_ENTRY
;
2062 som_symtab
[i
].arg_reloc
2063 = (*som_symbol_data (bfd_syms
[i
]))->tc_data
.hppa_arg_reloc
;
2066 /* If the type is unknown at this point, it should be
2067 ST_DATA (functions were handled as special cases above). */
2068 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2069 == SYMBOL_TYPE_UNKNOWN
)
2070 som_symtab
[i
].symbol_type
= ST_DATA
;
2072 /* From now on it's a very simple mapping. */
2073 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2074 == SYMBOL_TYPE_ABSOLUTE
)
2075 som_symtab
[i
].symbol_type
= ST_ABSOLUTE
;
2076 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2077 == SYMBOL_TYPE_CODE
)
2078 som_symtab
[i
].symbol_type
= ST_CODE
;
2079 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2080 == SYMBOL_TYPE_DATA
)
2081 som_symtab
[i
].symbol_type
= ST_DATA
;
2082 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2083 == SYMBOL_TYPE_MILLICODE
)
2084 som_symtab
[i
].symbol_type
= ST_MILLICODE
;
2085 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2086 == SYMBOL_TYPE_PLABEL
)
2087 som_symtab
[i
].symbol_type
= ST_PLABEL
;
2088 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2089 == SYMBOL_TYPE_PRI_PROG
)
2090 som_symtab
[i
].symbol_type
= ST_PRI_PROG
;
2091 else if ((*som_symbol_data (bfd_syms
[i
]))->som_type
2092 == SYMBOL_TYPE_SEC_PROG
)
2093 som_symtab
[i
].symbol_type
= ST_SEC_PROG
;
2096 /* Now handle the symbol's scope. Exported data which is not
2097 in the common section has scope SS_UNIVERSAL. Note scope
2098 of common symbols was handled earlier! */
2099 if (bfd_syms
[i
]->flags
& BSF_EXPORT
2100 && bfd_syms
[i
]->section
!= &bfd_com_section
)
2101 som_symtab
[i
].symbol_scope
= SS_UNIVERSAL
;
2102 /* Any undefined symbol at this point has a scope SS_UNSAT. */
2103 else if (bfd_syms
[i
]->section
== &bfd_und_section
)
2104 som_symtab
[i
].symbol_scope
= SS_UNSAT
;
2105 /* Anything else which is not in the common section has scope
2107 else if (bfd_syms
[i
]->section
!= &bfd_com_section
)
2108 som_symtab
[i
].symbol_scope
= SS_LOCAL
;
2110 /* Now set the symbol_info field. It has no real meaning
2111 for undefined or common symbols, but the HP linker will
2112 choke if it's not set to some "reasonable" value. We
2113 use zero as a reasonable value. */
2114 if (bfd_syms
[i
]->section
== &bfd_com_section
2115 || bfd_syms
[i
]->section
== &bfd_und_section
)
2116 som_symtab
[i
].symbol_info
= 0;
2117 /* For all other symbols, the symbol_info field contains the
2118 subspace index of the space this symbol is contained in. */
2120 som_symtab
[i
].symbol_info
2121 = som_section_data (bfd_syms
[i
]->section
)->subspace_index
;
2123 /* Set the symbol's value. */
2124 som_symtab
[i
].symbol_value
2125 = bfd_syms
[i
]->value
+ bfd_syms
[i
]->section
->vma
;
2128 /* Egad. Everything is ready, seek to the right location and
2129 scribble out the symbol table. */
2130 if (bfd_seek (abfd
, symtab_location
, SEEK_SET
) != 0)
2132 bfd_error
= system_call_error
;
2136 if (bfd_write ((PTR
) som_symtab
, symtab_size
, 1, abfd
) != symtab_size
)
2138 bfd_error
= system_call_error
;
2144 /* Write an object in SOM format. */
2147 som_write_object_contents (abfd
)
2150 if (abfd
->output_has_begun
== false)
2152 /* Set up fixed parts of the file, space, and subspace headers.
2153 Notify the world that output has begun. */
2154 som_prep_headers (abfd
);
2155 abfd
->output_has_begun
= true;
2157 /* Not in Cygnus sources yet. */
2158 /* Start writing the object file. This include all the string
2159 tables, fixup streams, and other portions of the object file. */
2160 som_begin_writing (abfd
);
2164 /* Now that the symbol table information is complete, build and
2165 write the symbol table. */
2166 if (som_build_and_write_symbol_table (abfd
) == false)
2169 /* Compute the checksum for the file header just before writing
2170 the header to disk. */
2171 obj_som_file_hdr (abfd
)->checksum
= som_compute_checksum (abfd
);
2172 return (som_write_headers (abfd
));
2176 /* Read and save the string table associated with the given BFD. */
2179 som_slurp_string_table (abfd
)
2184 /* Use the saved version if its available. */
2185 if (obj_som_stringtab (abfd
) != NULL
)
2188 /* Allocate and read in the string table. */
2189 stringtab
= bfd_zalloc (abfd
, obj_som_stringtab_size (abfd
));
2190 if (stringtab
== NULL
)
2192 bfd_error
= no_memory
;
2196 if (bfd_seek (abfd
, obj_som_str_filepos (abfd
), SEEK_SET
) < 0)
2198 bfd_error
= system_call_error
;
2202 if (bfd_read (stringtab
, obj_som_stringtab_size (abfd
), 1, abfd
)
2203 != obj_som_stringtab_size (abfd
))
2205 bfd_error
= system_call_error
;
2209 /* Save our results and return success. */
2210 obj_som_stringtab (abfd
) = stringtab
;
2214 /* Return the amount of data (in bytes) required to hold the symbol
2215 table for this object. */
2218 som_get_symtab_upper_bound (abfd
)
2221 if (!som_slurp_symbol_table (abfd
))
2224 return (bfd_get_symcount (abfd
) + 1) * (sizeof (som_symbol_type
*));
2227 /* Convert from a SOM subspace index to a BFD section. */
2230 som_section_from_subspace_index (abfd
, index
)
2236 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
2237 if (som_section_data (section
)->subspace_index
== index
)
2240 /* Should never happen. */
2244 /* Read and save the symbol table associated with the given BFD. */
2247 som_slurp_symbol_table (abfd
)
2250 int symbol_count
= bfd_get_symcount (abfd
);
2251 int symsize
= sizeof (struct symbol_dictionary_record
);
2253 struct symbol_dictionary_record
*buf
, *bufp
, *endbufp
;
2254 som_symbol_type
*sym
, *symbase
;
2256 /* Return saved value if it exists. */
2257 if (obj_som_symtab (abfd
) != NULL
)
2260 /* Sanity checking. Make sure there are some symbols and that
2261 we can read the string table too. */
2262 if (symbol_count
== 0)
2264 bfd_error
= no_symbols
;
2268 if (!som_slurp_string_table (abfd
))
2271 stringtab
= obj_som_stringtab (abfd
);
2273 symbase
= (som_symbol_type
*)
2274 bfd_zalloc (abfd
, symbol_count
* sizeof (som_symbol_type
));
2275 if (symbase
== NULL
)
2277 bfd_error
= no_memory
;
2281 /* Read in the external SOM representation. */
2282 buf
= alloca (symbol_count
* symsize
);
2285 bfd_error
= no_memory
;
2288 if (bfd_seek (abfd
, obj_som_sym_filepos (abfd
), SEEK_SET
) < 0)
2290 bfd_error
= system_call_error
;
2293 if (bfd_read (buf
, symbol_count
* symsize
, 1, abfd
)
2294 != symbol_count
* symsize
)
2296 bfd_error
= no_symbols
;
2300 /* Iterate over all the symbols and internalize them. */
2301 endbufp
= buf
+ symbol_count
;
2302 for (bufp
= buf
, sym
= symbase
; bufp
< endbufp
; ++bufp
)
2305 /* I don't think we care about these. */
2306 if (bufp
->symbol_type
== ST_SYM_EXT
2307 || bufp
->symbol_type
== ST_ARG_EXT
)
2310 /* Some reasonable defaults. */
2311 sym
->symbol
.the_bfd
= abfd
;
2312 sym
->symbol
.name
= bufp
->name
.n_strx
+ stringtab
;
2313 sym
->symbol
.value
= bufp
->symbol_value
;
2314 sym
->symbol
.section
= 0;
2315 sym
->symbol
.flags
= 0;
2317 switch (bufp
->symbol_type
)
2320 sym
->symbol
.flags
|= BSF_FUNCTION
;
2321 sym
->symbol
.value
&= ~0x3;
2329 sym
->symbol
.value
&= ~0x3;
2335 /* Handle scoping and section information. */
2336 switch (bufp
->symbol_scope
)
2338 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
2339 so the section associated with this symbol can't be known. */
2342 sym
->symbol
.flags
|= (BSF_EXPORT
| BSF_GLOBAL
);
2346 sym
->symbol
.flags
|= (BSF_EXPORT
| BSF_GLOBAL
);
2348 = som_section_from_subspace_index (abfd
, bufp
->symbol_info
);
2349 sym
->symbol
.value
-= sym
->symbol
.section
->vma
;
2353 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
2354 Sound dumb? It is. */
2358 sym
->symbol
.flags
|= BSF_LOCAL
;
2360 = som_section_from_subspace_index (abfd
, bufp
->symbol_info
);
2361 sym
->symbol
.value
-= sym
->symbol
.section
->vma
;
2365 /* Mark symbols left around by the debugger. */
2366 if (strlen (sym
->symbol
.name
) >= 3
2367 && sym
->symbol
.name
[0] == 'L'
2368 && (sym
->symbol
.name
[2] == '$' || sym
->symbol
.name
[3] == '$'))
2369 sym
->symbol
.flags
|= BSF_DEBUGGING
;
2371 /* Note increment at bottom of loop, since we skip some symbols
2372 we can not include it as part of the for statement. */
2376 /* Save our results and return success. */
2377 obj_som_symtab (abfd
) = symbase
;
2381 /* Canonicalize a SOM symbol table. Return the number of entries
2382 in the symbol table. */
2385 som_get_symtab (abfd
, location
)
2390 som_symbol_type
*symbase
;
2392 if (!som_slurp_symbol_table (abfd
))
2395 i
= bfd_get_symcount (abfd
);
2396 symbase
= obj_som_symtab (abfd
);
2398 for (; i
> 0; i
--, location
++, symbase
++)
2399 *location
= &symbase
->symbol
;
2401 /* Final null pointer. */
2403 return (bfd_get_symcount (abfd
));
2406 /* Make a SOM symbol. There is nothing special to do here. */
2409 som_make_empty_symbol (abfd
)
2412 som_symbol_type
*new =
2413 (som_symbol_type
*) bfd_zalloc (abfd
, sizeof (som_symbol_type
));
2416 bfd_error
= no_memory
;
2419 new->symbol
.the_bfd
= abfd
;
2421 return &new->symbol
;
2424 /* Print symbol information. */
2427 som_print_symbol (ignore_abfd
, afile
, symbol
, how
)
2431 bfd_print_symbol_type how
;
2433 FILE *file
= (FILE *) afile
;
2436 case bfd_print_symbol_name
:
2437 fprintf (file
, "%s", symbol
->name
);
2439 case bfd_print_symbol_more
:
2440 fprintf (file
, "som ");
2441 fprintf_vma (file
, symbol
->value
);
2442 fprintf (file
, " %lx", (long) symbol
->flags
);
2444 case bfd_print_symbol_all
:
2446 CONST
char *section_name
;
2447 section_name
= symbol
->section
? symbol
->section
->name
: "(*none*)";
2448 bfd_print_symbol_vandf ((PTR
) file
, symbol
);
2449 fprintf (file
, " %s\t%s", section_name
, symbol
->name
);
2456 som_get_reloc_upper_bound (abfd
, asect
)
2460 fprintf (stderr
, "som_get_reloc_upper_bound unimplemented\n");
2467 som_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
2473 fprintf (stderr
, "som_canonicalize_reloc unimplemented\n");
2478 extern bfd_target som_vec
;
2480 /* A hook to set up object file dependent section information. */
2483 som_new_section_hook (abfd
, newsect
)
2487 newsect
->used_by_bfd
= (struct som_section_data_struct
*)
2488 bfd_zalloc (abfd
, sizeof (struct som_section_data_struct
));
2489 newsect
->alignment_power
= 3;
2491 /* Initialize the subspace_index field to -1 so that it does
2492 not match a subspace with an index of 0. */
2493 som_section_data (newsect
)->subspace_index
= -1;
2495 /* We allow more than three sections internally */
2499 /* Set backend info for sections which can not be described
2500 in the BFD data structures. */
2503 bfd_som_set_section_attributes (section
, defined
, private, sort_key
, spnum
)
2507 unsigned char sort_key
;
2510 struct space_dictionary_record
*space_dict
;
2512 som_section_data (section
)->is_space
= 1;
2513 space_dict
= &som_section_data (section
)->space_dict
;
2514 space_dict
->is_defined
= defined
;
2515 space_dict
->is_private
= private;
2516 space_dict
->sort_key
= sort_key
;
2517 space_dict
->space_number
= spnum
;
2520 /* Set backend info for subsections which can not be described
2521 in the BFD data structures. */
2524 bfd_som_set_subsection_attributes (section
, container
, access
,
2527 asection
*container
;
2529 unsigned char sort_key
;
2532 struct subspace_dictionary_record
*subspace_dict
;
2533 som_section_data (section
)->is_subspace
= 1;
2534 subspace_dict
= &som_section_data (section
)->subspace_dict
;
2535 subspace_dict
->access_control_bits
= access
;
2536 subspace_dict
->sort_key
= sort_key
;
2537 subspace_dict
->quadrant
= quadrant
;
2538 som_section_data (section
)->containing_space
= container
;
2541 /* Set the full SOM symbol type. SOM needs far more symbol information
2542 than any other object file format I'm aware of. It is mandatory
2543 to be able to know if a symbol is an entry point, millicode, data,
2544 code, absolute, storage request, or procedure label. If you get
2545 the symbol type wrong your program will not link. */
2548 bfd_som_set_symbol_type (symbol
, type
)
2552 (*som_symbol_data (symbol
))->som_type
= type
;
2555 /* Attach 64bits of unwind information to a symbol (which hopefully
2556 is a function of some kind!). It would be better to keep this
2557 in the R_ENTRY relocation, but there is not enough space. */
2560 bfd_som_attach_unwind_info (symbol
, unwind_desc
)
2564 (*som_symbol_data (symbol
))->unwind
= unwind_desc
;
2568 som_set_section_contents (abfd
, section
, location
, offset
, count
)
2573 bfd_size_type count
;
2575 if (abfd
->output_has_begun
== false)
2577 /* Set up fixed parts of the file, space, and subspace headers.
2578 Notify the world that output has begun. */
2579 som_prep_headers (abfd
);
2580 abfd
->output_has_begun
= true;
2582 /* Not in Cygnus sources yet. */
2583 /* Start writing the object file. This include all the string
2584 tables, fixup streams, and other portions of the object file. */
2585 som_begin_writing (abfd
);
2589 /* Only write subspaces which have "real" contents (eg. the contents
2590 are not generated at run time by the OS). */
2591 if (som_section_data (section
)->is_subspace
!= 1
2592 || ((section
->flags
& (SEC_LOAD
| SEC_DEBUGGING
)) == 0))
2595 /* Seek to the proper offset within the object file and write the
2597 offset
+= som_section_data (section
)->subspace_dict
.file_loc_init_value
;
2598 if (bfd_seek (abfd
, offset
, SEEK_SET
) == -1)
2600 bfd_error
= system_call_error
;
2604 if (bfd_write ((PTR
) location
, 1, count
, abfd
) != count
)
2606 bfd_error
= system_call_error
;
2613 som_set_arch_mach (abfd
, arch
, machine
)
2615 enum bfd_architecture arch
;
2616 unsigned long machine
;
2618 /* Allow any architecture to be supported by the SOM backend */
2619 return bfd_default_set_arch_mach (abfd
, arch
, machine
);
2623 som_find_nearest_line (abfd
, section
, symbols
, offset
, filename_ptr
,
2624 functionname_ptr
, line_ptr
)
2629 CONST
char **filename_ptr
;
2630 CONST
char **functionname_ptr
;
2631 unsigned int *line_ptr
;
2633 fprintf (stderr
, "som_find_nearest_line unimplemented\n");
2640 som_sizeof_headers (abfd
, reloc
)
2644 fprintf (stderr
, "som_sizeof_headers unimplemented\n");
2650 /* Return information about SOM symbol SYMBOL in RET. */
2653 som_get_symbol_info (ignore_abfd
, symbol
, ret
)
2654 bfd
*ignore_abfd
; /* Ignored. */
2658 bfd_symbol_info (symbol
, ret
);
2661 /* End of miscellaneous support functions. */
2663 #define som_bfd_debug_info_start bfd_void
2664 #define som_bfd_debug_info_end bfd_void
2665 #define som_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
2667 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
2668 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
2669 #define som_slurp_armap bfd_false
2670 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
2671 #define som_truncate_arname (void (*)())bfd_nullvoidptr
2672 #define som_write_armap 0
2674 #define som_get_lineno (struct lineno_cache_entry *(*)())bfd_nullvoidptr
2675 #define som_close_and_cleanup bfd_generic_close_and_cleanup
2676 #define som_get_section_contents bfd_generic_get_section_contents
2678 #define som_bfd_get_relocated_section_contents \
2679 bfd_generic_get_relocated_section_contents
2680 #define som_bfd_relax_section bfd_generic_relax_section
2681 #define som_bfd_seclet_link bfd_generic_seclet_link
2682 #define som_bfd_reloc_type_lookup \
2683 ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
2684 #define som_bfd_make_debug_symbol \
2685 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
2687 /* Core file support is in the hpux-core backend. */
2688 #define som_core_file_failing_command _bfd_dummy_core_file_failing_command
2689 #define som_core_file_failing_signal _bfd_dummy_core_file_failing_signal
2690 #define som_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
2692 bfd_target som_vec
=
2695 bfd_target_som_flavour
,
2696 true, /* target byte order */
2697 true, /* target headers byte order */
2698 (HAS_RELOC
| EXEC_P
| /* object flags */
2699 HAS_LINENO
| HAS_DEBUG
|
2700 HAS_SYMS
| HAS_LOCALS
| WP_TEXT
| D_PAGED
),
2701 (SEC_CODE
| SEC_DATA
| SEC_ROM
| SEC_HAS_CONTENTS
2702 | SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
2704 /* leading_symbol_char: is the first char of a user symbol
2705 predictable, and if so what is it */
2707 ' ', /* ar_pad_char */
2708 16, /* ar_max_namelen */
2709 3, /* minimum alignment */
2710 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
2711 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
2712 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* data */
2713 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
2714 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
2715 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* hdrs */
2717 som_object_p
, /* bfd_check_format */
2718 bfd_generic_archive_p
,
2724 _bfd_generic_mkarchive
,
2729 som_write_object_contents
,
2730 _bfd_write_archive_contents
,
2738 #endif /* HOST_HPPAHPUX || HOST_HPPABSD */