Commit | Line | Data |
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65b07ddc | 1 | /* Read hp debug symbols and convert to internal format, for GDB. |
893a9f13 | 2 | Copyright 1993, 1996, 1998, 1999 Free Software Foundation, Inc. |
65b07ddc DT |
3 | |
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | ||
20 | Written by the Center for Software Science at the University of Utah | |
21 | and by Cygnus Support. */ | |
22 | ||
23 | /* Common include file for hp_symtab_read.c and hp_psymtab_read.c. | |
893a9f13 | 24 | This has nested includes of a bunch of stuff. */ |
65b07ddc DT |
25 | #include "hpread.h" |
26 | #include "demangle.h" | |
27 | ||
28 | /* To generate dumping code, uncomment this define. The dumping | |
893a9f13 | 29 | itself is controlled by routine-local statics called "dumping". */ |
42d99b82 | 30 | /* #define DUMPING 1 */ |
65b07ddc | 31 | |
893a9f13 | 32 | /* To use the quick look-up tables, uncomment this define. */ |
65b07ddc DT |
33 | #define QUICK_LOOK_UP 0 |
34 | ||
893a9f13 | 35 | /* To call PXDB to process un-processed files, uncomment this define. */ |
65b07ddc DT |
36 | #define USE_PXDB 1 |
37 | ||
38 | /* Forward procedure declarations */ | |
39 | ||
42d99b82 | 40 | void hpread_symfile_init |
65b07ddc DT |
41 | PARAMS ((struct objfile *)); |
42 | ||
43 | void hpread_build_psymtabs | |
44 | PARAMS ((struct objfile *, struct section_offsets *, int)); | |
45 | ||
42d99b82 | 46 | void hpread_symfile_finish |
65b07ddc DT |
47 | PARAMS ((struct objfile *)); |
48 | ||
42d99b82 | 49 | static union dnttentry *hpread_get_gntt |
65b07ddc DT |
50 | PARAMS ((int, struct objfile *)); |
51 | ||
42d99b82 | 52 | static unsigned long hpread_get_textlow |
65b07ddc DT |
53 | PARAMS ((int, int, struct objfile *, int)); |
54 | ||
55 | static struct partial_symtab *hpread_start_psymtab | |
56 | PARAMS ((struct objfile *, struct section_offsets *, char *, CORE_ADDR, int, | |
57 | struct partial_symbol **, struct partial_symbol **)); | |
58 | ||
59 | static struct partial_symtab *hpread_end_psymtab | |
60 | PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR, | |
61 | struct partial_symtab **, int)); | |
62 | ||
63 | /* End of forward routine declarations */ | |
64 | ||
65 | #ifdef USE_PXDB | |
66 | ||
893a9f13 | 67 | /* NOTE use of system files! May not be portable. */ |
42d99b82 | 68 | |
65b07ddc DT |
69 | #define PXDB_SVR4 "/opt/langtools/bin/pxdb" |
70 | #define PXDB_BSD "/usr/bin/pxdb" | |
71 | ||
72 | #include <stdlib.h> | |
73 | #include <string.h> | |
74 | #include <unistd.h> | |
75 | ||
76 | /* check for the existance of a file, given its full pathname */ | |
77 | int | |
78 | file_exists (filename) | |
79 | char *filename; | |
80 | { | |
42d99b82 EZ |
81 | if (filename) |
82 | return (access (filename, F_OK) == 0); | |
83 | return 0; | |
65b07ddc DT |
84 | } |
85 | ||
86 | ||
87 | /* Translate from the "hp_language" enumeration in hp-symtab.h | |
42d99b82 EZ |
88 | used in the debug info to gdb's generic enumeration in defs.h. */ |
89 | static enum language | |
65b07ddc DT |
90 | trans_lang (in_lang) |
91 | enum hp_language in_lang; | |
92 | { | |
42d99b82 EZ |
93 | if (in_lang == HP_LANGUAGE_C) |
94 | return language_c; | |
95 | ||
96 | else if (in_lang == HP_LANGUAGE_CPLUSPLUS) | |
97 | return language_cplus; | |
98 | ||
99 | else if (in_lang == HP_LANGUAGE_F77) | |
100 | return language_fortran; | |
101 | ||
102 | else | |
103 | return language_unknown; | |
65b07ddc DT |
104 | } |
105 | ||
106 | static char main_string[] = "main"; | |
65b07ddc DT |
107 | \f |
108 | /* Call PXDB to process our file. | |
42d99b82 | 109 | |
65b07ddc DT |
110 | Approach copied from DDE's "dbgk_run_pxdb". Note: we |
111 | don't check for BSD location of pxdb, nor for existance | |
112 | of pxdb itself, etc. | |
42d99b82 | 113 | |
65b07ddc | 114 | NOTE: uses system function and string functions directly. |
42d99b82 | 115 | |
65b07ddc DT |
116 | Return value: 1 if ok, 0 if not */ |
117 | int | |
118 | hpread_call_pxdb (file_name) | |
119 | char *file_name; | |
120 | { | |
42d99b82 EZ |
121 | char *p; |
122 | int status; | |
123 | int retval; | |
65b07ddc | 124 | |
42d99b82 EZ |
125 | if (file_exists (PXDB_SVR4)) |
126 | { | |
127 | p = malloc (strlen (PXDB_SVR4) + strlen (file_name) + 2); | |
128 | strcpy (p, PXDB_SVR4); | |
129 | strcat (p, " "); | |
130 | strcat (p, file_name); | |
65b07ddc | 131 | |
42d99b82 EZ |
132 | warning ("File not processed by pxdb--about to process now.\n"); |
133 | status = system (p); | |
65b07ddc | 134 | |
42d99b82 EZ |
135 | retval = (status == 0); |
136 | } | |
137 | else | |
138 | { | |
139 | warning ("pxdb not found at standard location: /opt/langtools/bin\ngdb will not be able to debug %s.\nPlease install pxdb at the above location and then restart gdb.\nYou can also run pxdb on %s with the command\n\"pxdb %s\" and then restart gdb.", file_name, file_name, file_name); | |
140 | ||
141 | retval = 0; | |
142 | } | |
143 | return retval; | |
144 | } /* hpread_call_pxdb */ | |
65b07ddc | 145 | \f |
42d99b82 | 146 | |
65b07ddc DT |
147 | /* Return 1 if the file turns out to need pre-processing |
148 | by PXDB, and we have thus called PXDB to do this processing | |
149 | and the file therefore needs to be re-loaded. Otherwise | |
150 | return 0. */ | |
151 | int | |
152 | hpread_pxdb_needed (sym_bfd) | |
42d99b82 | 153 | bfd *sym_bfd; |
65b07ddc | 154 | { |
42d99b82 EZ |
155 | asection *pinfo_section, *debug_section, *header_section; |
156 | unsigned int do_pxdb; | |
157 | char *buf; | |
158 | bfd_size_type header_section_size; | |
65b07ddc | 159 | |
42d99b82 EZ |
160 | unsigned long tmp; |
161 | unsigned int pxdbed; | |
65b07ddc | 162 | |
42d99b82 EZ |
163 | header_section = bfd_get_section_by_name (sym_bfd, "$HEADER$"); |
164 | if (!header_section) | |
165 | { | |
166 | return 0; /* No header at all, can't recover... */ | |
65b07ddc DT |
167 | } |
168 | ||
42d99b82 EZ |
169 | debug_section = bfd_get_section_by_name (sym_bfd, "$DEBUG$"); |
170 | pinfo_section = bfd_get_section_by_name (sym_bfd, "$PINFO$"); | |
171 | ||
172 | if (pinfo_section && !debug_section) | |
173 | { | |
174 | /* Debug info with DOC, has different header format. | |
175 | this only happens if the file was pxdbed and compiled optimized | |
176 | otherwise the PINFO section is not there. */ | |
177 | header_section_size = bfd_section_size (objfile->obfd, header_section); | |
178 | ||
179 | if (header_section_size == (bfd_size_type) sizeof (DOC_info_PXDB_header)) | |
65b07ddc | 180 | { |
42d99b82 EZ |
181 | buf = alloca (sizeof (DOC_info_PXDB_header)); |
182 | ||
183 | if (!bfd_get_section_contents (sym_bfd, | |
184 | header_section, | |
185 | buf, 0, | |
186 | header_section_size)) | |
187 | error ("bfd_get_section_contents\n"); | |
188 | ||
189 | tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 4)); | |
190 | pxdbed = (tmp >> 31) & 0x1; | |
191 | ||
192 | if (!pxdbed) | |
193 | error ("file debug header info invalid\n"); | |
194 | do_pxdb = 0; | |
65b07ddc | 195 | } |
42d99b82 EZ |
196 | |
197 | else | |
198 | error ("invalid $HEADER$ size in executable \n"); | |
199 | } | |
200 | ||
201 | else | |
202 | { | |
203 | ||
204 | /* this can be three different cases: | |
205 | 1. pxdbed and not doc | |
206 | - DEBUG and HEADER sections are there | |
207 | - header is PXDB_header type | |
208 | - pxdbed flag is set to 1 | |
209 | ||
210 | 2. not pxdbed and doc | |
211 | - DEBUG and HEADER sections are there | |
212 | - header is DOC_info_header type | |
213 | - pxdbed flag is set to 0 | |
214 | ||
215 | 3. not pxdbed and not doc | |
216 | - DEBUG and HEADER sections are there | |
217 | - header is XDB_header type | |
218 | - pxdbed flag is set to 0 | |
219 | ||
220 | NOTE: the pxdbed flag is meaningful also in the not | |
221 | already pxdb processed version of the header, | |
222 | because in case on non-already processed by pxdb files | |
223 | that same bit in the header would be always zero. | |
224 | Why? Because the bit is the leftmost bit of a word | |
225 | which contains a 'length' which is always a positive value | |
226 | so that bit is never set to 1 (otherwise it would be negative) | |
227 | ||
228 | Given the above, we have two choices : either we ignore the | |
229 | size of the header itself and just look at the pxdbed field, | |
230 | or we check the size and then we (for safety and paranoia related | |
231 | issues) check the bit. | |
232 | The first solution is used by DDE, the second by PXDB itself. | |
233 | I am using the second one here, because I already wrote it, | |
234 | and it is the end of a long day. | |
235 | Also, using the first approach would still involve size issues | |
236 | because we need to read in the contents of the header section, and | |
237 | give the correct amount of stuff we want to read to the | |
238 | get_bfd_section_contents function. */ | |
239 | ||
240 | /* decide which case depending on the size of the header section. | |
241 | The size is as defined in hp-symtab.h */ | |
242 | ||
243 | header_section_size = bfd_section_size (objfile->obfd, header_section); | |
244 | ||
245 | if (header_section_size == (bfd_size_type) sizeof (PXDB_header)) /* pxdb and not doc */ | |
65b07ddc | 246 | { |
42d99b82 EZ |
247 | |
248 | buf = alloca (sizeof (PXDB_header)); | |
249 | if (!bfd_get_section_contents (sym_bfd, | |
250 | header_section, | |
251 | buf, 0, | |
252 | header_section_size)) | |
253 | error ("bfd_get_section_contents\n"); | |
254 | ||
255 | tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 3)); | |
256 | pxdbed = (tmp >> 31) & 0x1; | |
257 | ||
258 | if (pxdbed) | |
259 | do_pxdb = 0; | |
260 | else | |
261 | error ("file debug header invalid\n"); | |
65b07ddc | 262 | } |
42d99b82 EZ |
263 | else /*not pxdbed and doc OR not pxdbed and non doc */ |
264 | do_pxdb = 1; | |
265 | } | |
266 | ||
267 | if (do_pxdb) | |
268 | { | |
269 | return 1; | |
270 | } | |
271 | else | |
272 | { | |
273 | return 0; | |
274 | } | |
275 | } /* hpread_pxdb_needed */ | |
65b07ddc DT |
276 | |
277 | #endif | |
42d99b82 | 278 | |
65b07ddc DT |
279 | #ifdef QUICK_LOOK_UP |
280 | ||
893a9f13 EZ |
281 | /* This flag can be set to zero to use the old |
282 | style psymtab (build from a scan of the LNTT) | |
283 | or to one to try to use the quick look-up | |
284 | tables. */ | |
65b07ddc | 285 | int psym_new_style = 1; |
65b07ddc DT |
286 | \f |
287 | ||
42d99b82 | 288 | |
65b07ddc DT |
289 | /* Code to handle quick lookup-tables follows */ |
290 | ||
291 | ||
42d99b82 | 292 | /* Some useful macros */ |
65b07ddc DT |
293 | #define VALID_FILE(i) ((i) < pxdb_header_p->fd_entries) |
294 | #define VALID_MODULE(i) ((i) < pxdb_header_p->md_entries) | |
295 | #define VALID_PROC(i) ((i) < pxdb_header_p->pd_entries) | |
296 | #define VALID_CLASS(i) ((i) < pxdb_header_p->cd_entries) | |
297 | ||
298 | #define FILE_START(i) (qFD[i].adrStart) | |
299 | #define MODULE_START(i) (qMD[i].adrStart) | |
300 | #define PROC_START(i) (qPD[i].adrStart) | |
301 | ||
302 | #define FILE_END(i) (qFD[i].adrEnd) | |
303 | #define MODULE_END(i) (qMD[i].adrEnd) | |
304 | #define PROC_END(i) (qPD[i].adrEnd) | |
305 | ||
306 | #define FILE_ISYM(i) (qFD[i].isym) | |
307 | #define MODULE_ISYM(i) (qMD[i].isym) | |
308 | #define PROC_ISYM(i) (qPD[i].isym) | |
309 | ||
310 | #define VALID_CURR_FILE (curr_fd < pxdb_header_p->fd_entries) | |
311 | #define VALID_CURR_MODULE (curr_md < pxdb_header_p->md_entries) | |
312 | #define VALID_CURR_PROC (curr_pd < pxdb_header_p->pd_entries) | |
313 | #define VALID_CURR_CLASS (curr_cd < pxdb_header_p->cd_entries) | |
314 | ||
315 | #define CURR_FILE_START (qFD[curr_fd].adrStart) | |
316 | #define CURR_MODULE_START (qMD[curr_md].adrStart) | |
317 | #define CURR_PROC_START (qPD[curr_pd].adrStart) | |
318 | ||
319 | #define CURR_FILE_END (qFD[curr_fd].adrEnd) | |
320 | #define CURR_MODULE_END (qMD[curr_md].adrEnd) | |
321 | #define CURR_PROC_END (qPD[curr_pd].adrEnd) | |
322 | ||
323 | #define CURR_FILE_ISYM (qFD[curr_fd].isym) | |
324 | #define CURR_MODULE_ISYM (qMD[curr_md].isym) | |
325 | #define CURR_PROC_ISYM (qPD[curr_pd].isym) | |
326 | ||
327 | #define TELL_OBJFILE \ | |
328 | do { \ | |
329 | if( !told_objfile ) { \ | |
42d99b82 | 330 | told_objfile = 1; \ |
65b07ddc DT |
331 | warning ("\nIn object file \"%s\":\n", \ |
332 | objfile->name); \ | |
333 | } \ | |
334 | } while (0) | |
65b07ddc DT |
335 | \f |
336 | ||
42d99b82 | 337 | |
65b07ddc DT |
338 | /* Keeping track of the start/end symbol table (LNTT) indices of |
339 | psymtabs created so far */ | |
340 | ||
42d99b82 EZ |
341 | typedef struct |
342 | { | |
65b07ddc DT |
343 | int start; |
344 | int end; | |
42d99b82 EZ |
345 | } |
346 | pst_syms_struct; | |
65b07ddc | 347 | |
42d99b82 | 348 | static pst_syms_struct *pst_syms_array = 0; |
65b07ddc DT |
349 | |
350 | static pst_syms_count = 0; | |
351 | static pst_syms_size = 0; | |
352 | ||
42d99b82 | 353 | /* used by the TELL_OBJFILE macro */ |
65b07ddc DT |
354 | static boolean told_objfile = 0; |
355 | ||
42d99b82 | 356 | /* Set up psymtab symbol index stuff */ |
65b07ddc DT |
357 | static void |
358 | init_pst_syms () | |
359 | { | |
42d99b82 EZ |
360 | pst_syms_count = 0; |
361 | pst_syms_size = 20; | |
362 | pst_syms_array = (pst_syms_struct *) xmalloc (20 * sizeof (pst_syms_struct)); | |
65b07ddc DT |
363 | } |
364 | ||
42d99b82 | 365 | /* Clean up psymtab symbol index stuff */ |
65b07ddc DT |
366 | static void |
367 | clear_pst_syms () | |
368 | { | |
42d99b82 EZ |
369 | pst_syms_count = 0; |
370 | pst_syms_size = 0; | |
371 | free (pst_syms_array); | |
372 | pst_syms_array = 0; | |
65b07ddc DT |
373 | } |
374 | ||
42d99b82 | 375 | /* Add information about latest psymtab to symbol index table */ |
65b07ddc DT |
376 | static void |
377 | record_pst_syms (start_sym, end_sym) | |
42d99b82 EZ |
378 | int start_sym; |
379 | int end_sym; | |
65b07ddc | 380 | { |
42d99b82 EZ |
381 | if (++pst_syms_count > pst_syms_size) |
382 | { | |
383 | pst_syms_array = (pst_syms_struct *) xrealloc (pst_syms_array, | |
384 | 2 * pst_syms_size * sizeof (pst_syms_struct)); | |
385 | pst_syms_size *= 2; | |
386 | } | |
387 | pst_syms_array[pst_syms_count - 1].start = start_sym; | |
388 | pst_syms_array[pst_syms_count - 1].end = end_sym; | |
65b07ddc DT |
389 | } |
390 | ||
391 | /* Find a suitable symbol table index which can serve as the upper | |
392 | bound of a psymtab that starts at INDEX | |
393 | ||
394 | This scans backwards in the psymtab symbol index table to find a | |
395 | "hole" in which the given index can fit. This is a heuristic!! | |
396 | We don't search the entire table to check for multiple holes, | |
397 | we don't care about overlaps, etc. | |
398 | ||
399 | Return 0 => not found */ | |
65b07ddc DT |
400 | static int |
401 | find_next_pst_start (index) | |
42d99b82 | 402 | int index; |
65b07ddc | 403 | { |
42d99b82 | 404 | int i; |
65b07ddc | 405 | |
42d99b82 EZ |
406 | for (i = pst_syms_count - 1; i >= 0; i--) |
407 | if (pst_syms_array[i].end <= index) | |
408 | return (i == pst_syms_count - 1) ? 0 : pst_syms_array[i + 1].start - 1; | |
65b07ddc | 409 | |
42d99b82 EZ |
410 | if (pst_syms_array[0].start > index) |
411 | return pst_syms_array[0].start - 1; | |
65b07ddc | 412 | |
42d99b82 | 413 | return 0; |
65b07ddc | 414 | } |
65b07ddc DT |
415 | \f |
416 | ||
42d99b82 | 417 | |
65b07ddc DT |
418 | /* Utility functions to find the ending symbol index for a psymtab */ |
419 | ||
420 | /* Find the next file entry that begins beyond INDEX, and return | |
421 | its starting symbol index - 1. | |
422 | QFD is the file table, CURR_FD is the file entry from where to start, | |
423 | PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work). | |
424 | ||
42d99b82 | 425 | Return 0 => not found */ |
65b07ddc DT |
426 | static int |
427 | find_next_file_isym (index, qFD, curr_fd, pxdb_header_p) | |
42d99b82 EZ |
428 | int index; |
429 | quick_file_entry *qFD; | |
430 | int curr_fd; | |
431 | PXDB_header_ptr pxdb_header_p; | |
65b07ddc | 432 | { |
42d99b82 EZ |
433 | while (VALID_CURR_FILE) |
434 | { | |
435 | if (CURR_FILE_ISYM >= index) | |
436 | return CURR_FILE_ISYM - 1; | |
437 | curr_fd++; | |
65b07ddc | 438 | } |
42d99b82 | 439 | return 0; |
65b07ddc DT |
440 | } |
441 | ||
442 | /* Find the next procedure entry that begins beyond INDEX, and return | |
443 | its starting symbol index - 1. | |
444 | QPD is the procedure table, CURR_PD is the proc entry from where to start, | |
445 | PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work). | |
446 | ||
42d99b82 | 447 | Return 0 => not found */ |
65b07ddc DT |
448 | static int |
449 | find_next_proc_isym (index, qPD, curr_pd, pxdb_header_p) | |
42d99b82 EZ |
450 | int index; |
451 | quick_procedure_entry *qPD; | |
452 | int curr_pd; | |
453 | PXDB_header_ptr pxdb_header_p; | |
65b07ddc | 454 | { |
42d99b82 EZ |
455 | while (VALID_CURR_PROC) |
456 | { | |
457 | if (CURR_PROC_ISYM >= index) | |
458 | return CURR_PROC_ISYM - 1; | |
459 | curr_pd++; | |
65b07ddc | 460 | } |
42d99b82 | 461 | return 0; |
65b07ddc DT |
462 | } |
463 | ||
464 | /* Find the next module entry that begins beyond INDEX, and return | |
465 | its starting symbol index - 1. | |
466 | QMD is the module table, CURR_MD is the modue entry from where to start, | |
467 | PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work). | |
468 | ||
42d99b82 | 469 | Return 0 => not found */ |
65b07ddc DT |
470 | static int |
471 | find_next_module_isym (index, qMD, curr_md, pxdb_header_p) | |
42d99b82 EZ |
472 | int index; |
473 | quick_module_entry *qMD; | |
474 | int curr_md; | |
475 | PXDB_header_ptr pxdb_header_p; | |
65b07ddc | 476 | { |
42d99b82 EZ |
477 | while (VALID_CURR_MODULE) |
478 | { | |
479 | if (CURR_MODULE_ISYM >= index) | |
480 | return CURR_MODULE_ISYM - 1; | |
481 | curr_md++; | |
65b07ddc | 482 | } |
42d99b82 | 483 | return 0; |
65b07ddc | 484 | } |
42d99b82 | 485 | |
65b07ddc DT |
486 | /* Scan and record partial symbols for all functions starting from index |
487 | pointed to by CURR_PD_P, and between code addresses START_ADR and END_ADR. | |
42d99b82 | 488 | Other parameters are explained in comments below. */ |
65b07ddc DT |
489 | |
490 | /* This used to be inline in hpread_quick_traverse, but now that we do essentially the | |
491 | same thing for two different cases (modules and module-less files), it's better | |
42d99b82 | 492 | organized in a separate routine, although it does take lots of arguments. pai/1997-10-08 */ |
65b07ddc DT |
493 | |
494 | static int | |
495 | scan_procs (curr_pd_p, qPD, max_procs, start_adr, end_adr, pst, vt_bits, objfile, section_offsets) | |
42d99b82 EZ |
496 | int *curr_pd_p; /* pointer to current proc index */ |
497 | quick_procedure_entry *qPD; /* the procedure quick lookup table */ | |
498 | int max_procs; /* number of entries in proc. table */ | |
499 | CORE_ADDR start_adr; /* beginning of code range for current psymtab */ | |
500 | CORE_ADDR end_adr; /* end of code range for current psymtab */ | |
501 | struct partial_symtab *pst; /* current psymtab */ | |
502 | char *vt_bits; /* strings table of SOM debug space */ | |
503 | struct objfile *objfile; /* current object file */ | |
504 | struct section_offsets *section_offsets; /* not really used for HP-UX currently */ | |
65b07ddc | 505 | { |
42d99b82 EZ |
506 | union dnttentry *dn_bufp; |
507 | int symbol_count = 0; /* Total number of symbols in this psymtab */ | |
508 | int curr_pd = *curr_pd_p; /* Convenience variable -- avoid dereferencing pointer all the time */ | |
65b07ddc DT |
509 | |
510 | #ifdef DUMPING | |
42d99b82 EZ |
511 | /* Turn this on for lots of debugging information in this routine */ |
512 | static int dumping = 0; | |
65b07ddc DT |
513 | #endif |
514 | ||
515 | #ifdef DUMPING | |
42d99b82 EZ |
516 | if (dumping) |
517 | { | |
518 | printf ("Scan_procs called, addresses %x to %x, proc %x\n", start_adr, end_adr, curr_pd); | |
65b07ddc DT |
519 | } |
520 | #endif | |
521 | ||
42d99b82 EZ |
522 | while ((CURR_PROC_START <= end_adr) && (curr_pd < max_procs)) |
523 | { | |
524 | ||
525 | char *rtn_name; /* mangled name */ | |
526 | char *rtn_dem_name; /* qualified demangled name */ | |
527 | char *class_name; | |
528 | int class; | |
529 | ||
530 | if ((trans_lang ((enum hp_language) qPD[curr_pd].language) == language_cplus) && | |
531 | vt_bits[(long) qPD[curr_pd].sbAlias]) /* not a null string */ | |
532 | { | |
533 | /* Get mangled name for the procedure, and demangle it */ | |
534 | rtn_name = &vt_bits[(long) qPD[curr_pd].sbAlias]; | |
535 | rtn_dem_name = cplus_demangle (rtn_name, DMGL_ANSI | DMGL_PARAMS); | |
536 | } | |
537 | else | |
538 | { | |
539 | rtn_name = &vt_bits[(long) qPD[curr_pd].sbProc]; | |
540 | rtn_dem_name = NULL; | |
541 | } | |
542 | ||
543 | /* Hack to get around HP C/C++ compilers' insistence on providing | |
544 | "_MAIN_" as an alternate name for "main" */ | |
545 | if ((strcmp (rtn_name, "_MAIN_") == 0) && | |
546 | (strcmp (&vt_bits[(long) qPD[curr_pd].sbProc], "main") == 0)) | |
547 | rtn_dem_name = rtn_name = main_string; | |
65b07ddc DT |
548 | |
549 | #ifdef DUMPING | |
42d99b82 EZ |
550 | if (dumping) |
551 | { | |
552 | printf ("..add %s (demangled %s), index %x to this psymtab\n", rtn_name, rtn_dem_name, curr_pd); | |
553 | } | |
65b07ddc DT |
554 | #endif |
555 | ||
42d99b82 EZ |
556 | /* Check for module-spanning routines. */ |
557 | if (CURR_PROC_END > end_adr) | |
558 | { | |
559 | TELL_OBJFILE; | |
560 | warning ("Procedure \"%s\" [0x%x] spans file or module boundaries.", rtn_name, curr_pd); | |
561 | } | |
65b07ddc DT |
562 | |
563 | /* I asked for this in the hope it would fix bug CHFts22228, but | |
893a9f13 EZ |
564 | later decided it's not the right fix. I'm leaving the code |
565 | commented out for now in case we decide we actually want to do this. | |
566 | - RT */ | |
65b07ddc | 567 | #if 0 |
42d99b82 EZ |
568 | /* Check this routine--if it's a class member function, |
569 | add the class to the psymtab. We only need to add | |
570 | the class once in each module, so check. */ | |
571 | if (qPD[curr_pd].member) | |
572 | { | |
573 | ||
574 | class = qPD[curr_pd].icd; | |
575 | if (!B_TST (class_entered, class)) | |
576 | { /* pai: (temp) class_entered not a parameter */ | |
577 | ||
578 | class_name = &vt_bits[(long) qCD[class].sbClass]; | |
579 | ||
580 | /* Add to both the struct and var namespace */ | |
581 | ||
582 | add_psymbol_to_list (class_name, | |
583 | strlen (class_name), | |
584 | STRUCT_NAMESPACE, | |
585 | LOC_UNDEF, /* "I have no storage" */ | |
586 | &objfile->global_psymbols, /* assume classname is global */ | |
587 | 0, 0, | |
588 | trans_lang ((enum hp_language) qPD[curr_pd].language), | |
589 | objfile); | |
590 | ||
591 | add_psymbol_to_list (class_name, | |
592 | strlen (class_name), | |
593 | VAR_NAMESPACE, | |
594 | LOC_UNDEF, /* "I have no storage" */ | |
595 | &objfile->global_psymbols, /* assume classname is global */ | |
596 | 0, 0, | |
597 | trans_lang ((enum hp_language) qPD[curr_pd].language), | |
598 | objfile); | |
599 | ||
600 | B_SET (class_entered, class); /* pai: (temp) class_entered not a parameter */ | |
601 | symbol_count++; | |
602 | } | |
603 | } | |
65b07ddc DT |
604 | #endif |
605 | ||
42d99b82 EZ |
606 | /* Add this routine symbol to the list in the objfile. |
607 | Unfortunately we have to go to the LNTT to determine the | |
608 | correct list to put it on. An alternative (which the | |
609 | code used to do) would be to not check and always throw | |
610 | it on the "static" list. But if we go that route, then | |
611 | symbol_lookup() needs to be tweaked a bit to account | |
612 | for the fact that the function might not be found on | |
613 | the correct list in the psymtab. - RT */ | |
614 | dn_bufp = hpread_get_lntt (qPD[curr_pd].isym, objfile); | |
615 | if (dn_bufp->dfunc.global) | |
616 | add_psymbol_with_dem_name_to_list (rtn_name, | |
617 | strlen (rtn_name), | |
618 | rtn_dem_name, | |
619 | strlen (rtn_dem_name), | |
620 | VAR_NAMESPACE, | |
621 | LOC_BLOCK, /* "I am a routine" */ | |
622 | &objfile->global_psymbols, | |
623 | (qPD[curr_pd].adrStart + /* Starting address of rtn */ | |
624 | ANOFFSET (section_offsets, SECT_OFF_TEXT)), | |
625 | 0, /* core addr?? */ | |
626 | trans_lang ((enum hp_language) qPD[curr_pd].language), | |
627 | objfile); | |
628 | else | |
629 | add_psymbol_with_dem_name_to_list (rtn_name, | |
630 | strlen (rtn_name), | |
631 | rtn_dem_name, | |
632 | strlen (rtn_dem_name), | |
633 | VAR_NAMESPACE, | |
634 | LOC_BLOCK, /* "I am a routine" */ | |
635 | &objfile->static_psymbols, | |
636 | (qPD[curr_pd].adrStart + /* Starting address of rtn */ | |
637 | ANOFFSET (section_offsets, SECT_OFF_TEXT)), | |
638 | 0, /* core addr?? */ | |
639 | trans_lang ((enum hp_language) qPD[curr_pd].language), | |
640 | objfile); | |
641 | ||
642 | symbol_count++; | |
643 | *curr_pd_p = ++curr_pd; /* bump up count & reflect in caller */ | |
644 | } /* loop over procedures */ | |
65b07ddc DT |
645 | |
646 | #ifdef DUMPING | |
42d99b82 EZ |
647 | if (dumping) |
648 | { | |
649 | if (symbol_count == 0) | |
650 | printf ("Scan_procs: no symbols found!\n"); | |
65b07ddc DT |
651 | } |
652 | #endif | |
653 | ||
42d99b82 | 654 | return symbol_count; |
65b07ddc DT |
655 | } |
656 | ||
657 | ||
658 | /* Traverse the quick look-up tables, building a set of psymtabs. | |
42d99b82 | 659 | |
893a9f13 EZ |
660 | This constructs a psymtab for modules and files in the quick lookup |
661 | tables. | |
42d99b82 | 662 | |
893a9f13 EZ |
663 | Mostly, modules correspond to compilation units, so we try to |
664 | create psymtabs that correspond to modules; however, in some cases | |
665 | a file can result in a compiled object which does not have a module | |
666 | entry for it, so in such cases we create a psymtab for the file. */ | |
65b07ddc DT |
667 | |
668 | int | |
42d99b82 EZ |
669 | hpread_quick_traverse (objfile, section_offsets, gntt_bits, vt_bits, pxdb_header_p) |
670 | struct objfile *objfile; /* The object file descriptor */ | |
671 | struct section_offsets *section_offsets; /* ?? Null for HP */ | |
672 | char *gntt_bits; /* GNTT entries, loaded in from the file */ | |
673 | char *vt_bits; /* VT (string) entries ditto. */ | |
674 | PXDB_header_ptr pxdb_header_p; /* Pointer to pxdb header ditto */ | |
65b07ddc DT |
675 | { |
676 | struct partial_symtab *pst; | |
677 | ||
42d99b82 EZ |
678 | char *addr; |
679 | ||
65b07ddc | 680 | quick_procedure_entry *qPD; |
42d99b82 EZ |
681 | quick_file_entry *qFD; |
682 | quick_module_entry *qMD; | |
683 | quick_class_entry *qCD; | |
684 | ||
685 | int idx; | |
686 | int i; | |
687 | CORE_ADDR start_adr; /* current psymtab's starting code addr */ | |
688 | CORE_ADDR end_adr; /* current psymtab's ending code addr */ | |
689 | CORE_ADDR next_mod_adr; /* next module's starting code addr */ | |
690 | int curr_pd; /* current procedure */ | |
691 | int curr_fd; /* current file */ | |
692 | int curr_md; /* current module */ | |
693 | int start_sym; /* current psymtab's starting symbol index */ | |
694 | int end_sym; /* current psymtab's ending symbol index */ | |
695 | int max_LNTT_sym_index; | |
696 | int syms_in_pst; | |
697 | B_TYPE *class_entered; | |
698 | ||
699 | struct partial_symbol **global_syms; /* We'll be filling in the "global" */ | |
700 | struct partial_symbol **static_syms; /* and "static" tables in the objfile | |
701 | as we go, so we need a pair of | |
702 | current pointers. */ | |
703 | ||
65b07ddc DT |
704 | #ifdef DUMPING |
705 | /* Turn this on for lots of debugging information in this routine. | |
706 | You get a blow-by-blow account of quick lookup table reading */ | |
707 | static int dumping = 0; | |
708 | #endif | |
709 | ||
42d99b82 | 710 | pst = (struct partial_symtab *) 0; |
65b07ddc DT |
711 | |
712 | /* Clear out some globals */ | |
713 | init_pst_syms (); | |
714 | told_objfile = 0; | |
42d99b82 | 715 | |
65b07ddc | 716 | /* Demangling style -- if EDG style already set, don't change it, |
42d99b82 EZ |
717 | as HP style causes some problems with the KAI EDG compiler */ |
718 | if (current_demangling_style != edg_demangling) | |
719 | { | |
720 | /* Otherwise, ensure that we are using HP style demangling */ | |
721 | set_demangling_style (HP_DEMANGLING_STYLE_STRING); | |
722 | } | |
65b07ddc DT |
723 | |
724 | /* First we need to find the starting points of the quick | |
893a9f13 | 725 | look-up tables in the GNTT. */ |
65b07ddc DT |
726 | |
727 | addr = gntt_bits; | |
728 | ||
42d99b82 EZ |
729 | qPD = (quick_procedure_entry_ptr) addr; |
730 | addr += pxdb_header_p->pd_entries * sizeof (quick_procedure_entry); | |
731 | ||
65b07ddc | 732 | #ifdef DUMPING |
42d99b82 EZ |
733 | if (dumping) |
734 | { | |
735 | printf ("\n Printing routines as we see them\n"); | |
736 | for (i = 0; VALID_PROC (i); i++) | |
737 | { | |
738 | idx = (long) qPD[i].sbProc; | |
739 | printf ("%s %x..%x\n", &vt_bits[idx], | |
740 | (int) PROC_START (i), | |
741 | (int) PROC_END (i)); | |
742 | } | |
743 | } | |
65b07ddc DT |
744 | #endif |
745 | ||
42d99b82 EZ |
746 | qFD = (quick_file_entry_ptr) addr; |
747 | addr += pxdb_header_p->fd_entries * sizeof (quick_file_entry); | |
65b07ddc DT |
748 | |
749 | #ifdef DUMPING | |
42d99b82 EZ |
750 | if (dumping) |
751 | { | |
752 | printf ("\n Printing files as we see them\n"); | |
753 | for (i = 0; VALID_FILE (i); i++) | |
754 | { | |
755 | idx = (long) qFD[i].sbFile; | |
756 | printf ("%s %x..%x\n", &vt_bits[idx], | |
757 | (int) FILE_START (i), | |
758 | (int) FILE_END (i)); | |
759 | } | |
760 | } | |
65b07ddc DT |
761 | #endif |
762 | ||
42d99b82 EZ |
763 | qMD = (quick_module_entry_ptr) addr; |
764 | addr += pxdb_header_p->md_entries * sizeof (quick_module_entry); | |
65b07ddc DT |
765 | |
766 | #ifdef DUMPING | |
42d99b82 EZ |
767 | if (dumping) |
768 | { | |
769 | printf ("\n Printing modules as we see them\n"); | |
770 | for (i = 0; i < pxdb_header_p->md_entries; i++) | |
771 | { | |
772 | idx = (long) qMD[i].sbMod; | |
773 | printf ("%s\n", &vt_bits[idx]); | |
774 | } | |
775 | } | |
65b07ddc DT |
776 | #endif |
777 | ||
42d99b82 EZ |
778 | qCD = (quick_class_entry_ptr) addr; |
779 | addr += pxdb_header_p->cd_entries * sizeof (quick_class_entry); | |
65b07ddc DT |
780 | |
781 | #ifdef DUMPING | |
42d99b82 EZ |
782 | if (dumping) |
783 | { | |
784 | printf ("\n Printing classes as we see them\n"); | |
785 | for (i = 0; VALID_CLASS (i); i++) | |
786 | { | |
787 | idx = (long) qCD[i].sbClass; | |
788 | printf ("%s\n", &vt_bits[idx]); | |
789 | } | |
790 | ||
791 | printf ("\n Done with dump, on to build!\n"); | |
792 | } | |
65b07ddc DT |
793 | #endif |
794 | ||
795 | /* We need this index only while hp-symtab-read.c expects | |
893a9f13 EZ |
796 | a byte offset to the end of the LNTT entries for a given |
797 | psymtab. Thus the need for it should go away someday. | |
42d99b82 | 798 | |
893a9f13 EZ |
799 | When it goes away, then we won't have any need to load the |
800 | LNTT from the objfile at psymtab-time, and start-up will be | |
801 | faster. To make that work, we'll need some way to create | |
802 | a null pst for the "globals" pseudo-module. */ | |
65b07ddc DT |
803 | max_LNTT_sym_index = LNTT_SYMCOUNT (objfile); |
804 | ||
805 | /* Scan the module descriptors and make a psymtab for each. | |
42d99b82 | 806 | |
893a9f13 EZ |
807 | We know the MDs, FDs and the PDs are in order by starting |
808 | address. We use that fact to traverse all three arrays in | |
809 | parallel, knowing when the next PD is in a new file | |
810 | and we need to create a new psymtab. */ | |
42d99b82 EZ |
811 | curr_pd = 0; /* Current procedure entry */ |
812 | curr_fd = 0; /* Current file entry */ | |
813 | curr_md = 0; /* Current module entry */ | |
814 | ||
815 | start_adr = 0; /* Current psymtab code range */ | |
816 | end_adr = 0; | |
65b07ddc | 817 | |
42d99b82 EZ |
818 | start_sym = 0; /* Current psymtab symbol range */ |
819 | end_sym = 0; | |
65b07ddc | 820 | |
42d99b82 | 821 | syms_in_pst = 0; /* Symbol count for psymtab */ |
65b07ddc DT |
822 | |
823 | /* Psts actually just have pointers into the objfile's | |
893a9f13 | 824 | symbol table, not their own symbol tables. */ |
42d99b82 EZ |
825 | global_syms = objfile->global_psymbols.list; |
826 | static_syms = objfile->static_psymbols.list; | |
65b07ddc | 827 | |
42d99b82 | 828 | #if 0 /* pai: (temp) we don't need this any more */ |
65b07ddc DT |
829 | /* elz: if the first module we see in the table is for |
830 | end.c, then return immediately with false. This happens | |
831 | for F77 programs, for which there is no MODULE information | |
832 | produced in the debug info. | |
833 | Returning false from this function will make the caller | |
834 | (build_psymbols) scan the table from the beginning and | |
835 | not use the quick lookup tables. | |
893a9f13 | 836 | F90 has modules so this poses no problem. */ |
42d99b82 | 837 | if (!strcmp (&vt_bits[(long) qMD[0].sbMod], "end.c")) |
65b07ddc DT |
838 | return 0; |
839 | #endif | |
840 | ||
841 | /* First skip over pseudo-entries with address 0. These represent inlined | |
842 | routines and abstract (uninstantiated) template routines. | |
843 | FIXME: These should be read in and available -- even if we can't set | |
844 | breakpoints, etc., there's some information that can be presented | |
845 | to the user. pai/1997-10-08 */ | |
846 | ||
847 | while (VALID_CURR_PROC && (CURR_PROC_START == 0)) | |
42d99b82 | 848 | curr_pd++; |
65b07ddc DT |
849 | |
850 | /* Loop over files, modules, and procedures in code address order. Each | |
851 | time we enter an iteration of this loop, curr_pd points to the first | |
852 | unprocessed procedure, curr_fd points to the first unprocessed file, and | |
853 | curr_md to the first unprocessed module. Each iteration of this loop | |
854 | updates these as required -- any or all of them may be bumpd up | |
855 | each time around. When we exit this loop, we are done with all files | |
856 | and modules in the tables -- there may still be some procedures, however. | |
857 | ||
858 | Note: This code used to loop only over module entries, under the assumption | |
859 | that files can occur via inclusions and are thus unreliable, while a | |
860 | compiled object always corresponds to a module. With CTTI in the HP aCC | |
861 | compiler, it turns out that compiled objects may have only files and no | |
862 | modules; so we have to loop over files and modules, creating psymtabs for | |
863 | either as appropriate. Unfortunately there are some problems (notably: | |
864 | 1. the lack of "SRC_FILE_END" entries in the LNTT, 2. the lack of pointers | |
865 | to the ending symbol indices of a module or a file) which make it quite hard | |
866 | to do this correctly. Currently it uses a bunch of heuristics to start and | |
867 | end psymtabs; they seem to work well with most objects generated by aCC, but | |
868 | who knows when that will change... */ | |
869 | ||
42d99b82 EZ |
870 | while (VALID_CURR_FILE || VALID_CURR_MODULE) |
871 | { | |
872 | ||
65b07ddc DT |
873 | char *mod_name_string; |
874 | char *full_name_string; | |
875 | ||
876 | /* First check for modules like "version.c", which have no code | |
893a9f13 EZ |
877 | in them but still have qMD entries. They also have no qFD or |
878 | qPD entries. Their start address is -1 and their end address | |
879 | is 0. */ | |
42d99b82 EZ |
880 | if (VALID_CURR_MODULE && (CURR_MODULE_START == -1) && (CURR_MODULE_END == NULL)) |
881 | { | |
65b07ddc | 882 | |
42d99b82 | 883 | mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod]; |
65b07ddc DT |
884 | |
885 | #ifdef DUMPING | |
42d99b82 EZ |
886 | if (dumping) |
887 | printf ("Module with data only %s\n", mod_name_string); | |
65b07ddc DT |
888 | #endif |
889 | ||
42d99b82 EZ |
890 | /* We'll skip the rest (it makes error-checking easier), and |
891 | just make an empty pst. Right now empty psts are not put | |
892 | in the pst chain, so all this is for naught, but later it | |
893 | might help. */ | |
894 | ||
895 | pst = hpread_start_psymtab (objfile, | |
896 | section_offsets, /* ?? */ | |
897 | mod_name_string, | |
898 | CURR_MODULE_START, /* Low text address: bogus! */ | |
899 | (CURR_MODULE_ISYM * sizeof (struct dntt_type_block)), | |
900 | /* ldsymoff */ | |
901 | global_syms, | |
902 | static_syms); | |
903 | ||
904 | pst = hpread_end_psymtab (pst, | |
905 | NULL, /* psymtab_include_list */ | |
906 | 0, /* includes_used */ | |
907 | end_sym * sizeof (struct dntt_type_block), | |
908 | /* byte index in LNTT of end | |
909 | = capping symbol offset | |
910 | = LDSYMOFF of nextfile */ | |
911 | NULL, /* text high */ | |
912 | NULL, /* dependency_list */ | |
913 | 0); /* dependencies_used */ | |
914 | ||
915 | global_syms = objfile->global_psymbols.next; | |
916 | static_syms = objfile->static_psymbols.next; | |
917 | ||
918 | curr_md++; | |
919 | } | |
65b07ddc | 920 | else if (VALID_CURR_MODULE && |
42d99b82 EZ |
921 | ((CURR_MODULE_START == 0) || (CURR_MODULE_START == -1) || |
922 | (CURR_MODULE_END == 0) || (CURR_MODULE_END == -1))) | |
923 | { | |
924 | TELL_OBJFILE; | |
925 | warning ("Module \"%s\" [0x%x] has non-standard addresses. It starts at 0x%x, ends at 0x%x, and will be skipped.", | |
926 | mod_name_string, curr_md, start_adr, end_adr); | |
927 | /* On to next module */ | |
928 | curr_md++; | |
929 | } | |
930 | else | |
931 | { | |
932 | /* First check if we are looking at a file with code in it | |
933 | that does not overlap the current module's code range */ | |
934 | ||
935 | if (VALID_CURR_FILE ? (VALID_CURR_MODULE ? (CURR_FILE_END < CURR_MODULE_START) : 1) : 0) | |
936 | { | |
937 | ||
938 | /* Looking at file not corresponding to any module, | |
939 | create a psymtab for it */ | |
940 | full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile]; | |
941 | start_adr = CURR_FILE_START; | |
942 | end_adr = CURR_FILE_END; | |
943 | start_sym = CURR_FILE_ISYM; | |
944 | ||
945 | /* Check if there are any procedures not handled until now, that | |
946 | begin before the start address of this file, and if so, adjust | |
947 | this module's start address to include them. This handles routines that | |
948 | are in between file or module ranges for some reason (probably | |
949 | indicates a compiler bug */ | |
950 | ||
951 | if (CURR_PROC_START < start_adr) | |
952 | { | |
953 | TELL_OBJFILE; | |
954 | warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.", | |
955 | &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd); | |
956 | start_adr = CURR_PROC_START; | |
957 | if (CURR_PROC_ISYM < start_sym) | |
958 | start_sym = CURR_PROC_ISYM; | |
959 | } | |
960 | ||
961 | /* Sometimes (compiler bug -- COBOL) the module end address is higher | |
962 | than the start address of the next module, so check for that and | |
963 | adjust accordingly */ | |
964 | ||
965 | if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr)) | |
966 | { | |
967 | TELL_OBJFILE; | |
968 | warning ("File \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.", | |
969 | full_name_string, curr_fd); | |
970 | end_adr = FILE_START (curr_fd + 1) - 1; /* Is -4 (or -8 for 64-bit) better? */ | |
971 | } | |
972 | if (VALID_MODULE (curr_md) && (CURR_MODULE_START <= end_adr)) | |
973 | { | |
974 | TELL_OBJFILE; | |
975 | warning ("File \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.", | |
976 | full_name_string, curr_fd); | |
977 | end_adr = CURR_MODULE_START - 1; /* Is -4 (or -8 for 64-bit) better? */ | |
978 | } | |
979 | ||
65b07ddc DT |
980 | |
981 | #ifdef DUMPING | |
42d99b82 EZ |
982 | if (dumping) |
983 | { | |
984 | printf ("Make new psymtab for file %s (%x to %x).\n", | |
985 | full_name_string, start_adr, end_adr); | |
986 | } | |
65b07ddc | 987 | #endif |
42d99b82 EZ |
988 | /* Create the basic psymtab, connecting it in the list |
989 | for this objfile and pointing its symbol entries | |
990 | to the current end of the symbol areas in the objfile. | |
991 | ||
992 | The "ldsymoff" parameter is the byte offset in the LNTT | |
993 | of the first symbol in this file. Some day we should | |
994 | turn this into an index (fix in hp-symtab-read.c as well). | |
995 | And it's not even the right byte offset, as we're using | |
996 | the size of a union! FIXME! */ | |
997 | pst = hpread_start_psymtab (objfile, | |
998 | section_offsets, /* ?? */ | |
999 | full_name_string, | |
1000 | start_adr, /* Low text address */ | |
1001 | (start_sym * sizeof (struct dntt_type_block)), | |
1002 | /* ldsymoff */ | |
1003 | global_syms, | |
1004 | static_syms); | |
1005 | ||
1006 | /* Set up to only enter each class referenced in this module once. */ | |
1007 | class_entered = malloc (B_BYTES (pxdb_header_p->cd_entries)); | |
1008 | B_CLRALL (class_entered, pxdb_header_p->cd_entries); | |
1009 | ||
1010 | /* Scan the procedure descriptors for procedures in the current | |
1011 | file, based on the starting addresses. */ | |
1012 | ||
1013 | syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries, | |
1014 | start_adr, end_adr, | |
1015 | pst, vt_bits, objfile, section_offsets); | |
1016 | ||
1017 | /* Get ending symbol offset */ | |
1018 | ||
1019 | end_sym = 0; | |
1020 | /* First check for starting index before previous psymtab */ | |
1021 | if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end) | |
1022 | { | |
1023 | end_sym = find_next_pst_start (start_sym); | |
1024 | } | |
1025 | /* Look for next start index of a file or module, or procedure */ | |
1026 | if (!end_sym) | |
1027 | { | |
1028 | int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p); | |
1029 | int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md, pxdb_header_p); | |
1030 | int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p); | |
1031 | ||
1032 | if (next_file_isym && next_module_isym) | |
1033 | { | |
1034 | /* pick lower of next file or module start index */ | |
1035 | end_sym = min (next_file_isym, next_module_isym); | |
1036 | } | |
1037 | else | |
1038 | { | |
1039 | /* one of them is zero, pick the other */ | |
1040 | end_sym = max (next_file_isym, next_module_isym); | |
1041 | } | |
1042 | ||
1043 | /* As a precaution, check next procedure index too */ | |
1044 | if (!end_sym) | |
1045 | end_sym = next_proc_isym; | |
1046 | else | |
1047 | end_sym = min (end_sym, next_proc_isym); | |
1048 | } | |
1049 | ||
1050 | /* Couldn't find procedure, file, or module, use globals as default */ | |
1051 | if (!end_sym) | |
1052 | end_sym = pxdb_header_p->globals; | |
65b07ddc DT |
1053 | |
1054 | #ifdef DUMPING | |
42d99b82 EZ |
1055 | if (dumping) |
1056 | { | |
1057 | printf ("File psymtab indices: %x to %x\n", start_sym, end_sym); | |
1058 | } | |
65b07ddc DT |
1059 | #endif |
1060 | ||
42d99b82 EZ |
1061 | pst = hpread_end_psymtab (pst, |
1062 | NULL, /* psymtab_include_list */ | |
1063 | 0, /* includes_used */ | |
1064 | end_sym * sizeof (struct dntt_type_block), | |
1065 | /* byte index in LNTT of end | |
1066 | = capping symbol offset | |
1067 | = LDSYMOFF of nextfile */ | |
1068 | end_adr, /* text high */ | |
1069 | NULL, /* dependency_list */ | |
1070 | 0); /* dependencies_used */ | |
1071 | ||
1072 | record_pst_syms (start_sym, end_sym); | |
1073 | ||
1074 | if (NULL == pst) | |
1075 | warning ("No symbols in psymtab for file \"%s\" [0x%x].", full_name_string, curr_fd); | |
1076 | ||
65b07ddc | 1077 | #ifdef DUMPING |
42d99b82 EZ |
1078 | if (dumping) |
1079 | { | |
1080 | printf ("Made new psymtab for file %s (%x to %x), sym %x to %x.\n", | |
1081 | full_name_string, start_adr, end_adr, CURR_FILE_ISYM, end_sym); | |
1082 | } | |
65b07ddc | 1083 | #endif |
42d99b82 EZ |
1084 | /* Prepare for the next psymtab. */ |
1085 | global_syms = objfile->global_psymbols.next; | |
1086 | static_syms = objfile->static_psymbols.next; | |
1087 | free (class_entered); | |
1088 | ||
1089 | curr_fd++; | |
1090 | } /* Psymtab for file */ | |
1091 | else | |
1092 | { | |
1093 | /* We have a module for which we create a psymtab */ | |
1094 | ||
1095 | mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod]; | |
1096 | ||
1097 | /* We will include the code ranges of any files that happen to | |
1098 | overlap with this module */ | |
1099 | ||
1100 | /* So, first pick the lower of the file's and module's start addresses */ | |
1101 | start_adr = CURR_MODULE_START; | |
1102 | if (VALID_CURR_FILE) | |
1103 | { | |
1104 | if (CURR_FILE_START < CURR_MODULE_START) | |
1105 | { | |
1106 | TELL_OBJFILE; | |
1107 | warning ("File \"%s\" [0x%x] crosses beginning of module \"%s\".", | |
1108 | &vt_bits[(long) qFD[curr_fd].sbFile], | |
1109 | curr_fd, mod_name_string); | |
1110 | ||
1111 | start_adr = CURR_FILE_START; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | /* Also pick the lower of the file's and the module's start symbol indices */ | |
1116 | start_sym = CURR_MODULE_ISYM; | |
1117 | if (VALID_CURR_FILE && (CURR_FILE_ISYM < CURR_MODULE_ISYM)) | |
1118 | start_sym = CURR_FILE_ISYM; | |
1119 | ||
1120 | /* For the end address, we scan through the files till we find one | |
1121 | that overlaps the current module but ends beyond it; if no such file exists we | |
1122 | simply use the module's start address. | |
1123 | (Note, if file entries themselves overlap | |
1124 | we take the longest overlapping extension beyond the end of the module...) | |
1125 | We assume that modules never overlap. */ | |
1126 | ||
1127 | end_adr = CURR_MODULE_END; | |
1128 | ||
1129 | if (VALID_CURR_FILE) | |
1130 | { | |
1131 | while (VALID_CURR_FILE && (CURR_FILE_START < end_adr)) | |
1132 | { | |
1133 | ||
65b07ddc | 1134 | #ifdef DUMPING |
42d99b82 EZ |
1135 | if (dumping) |
1136 | printf ("Maybe skipping file %s which overlaps with module %s\n", | |
1137 | &vt_bits[(long) qFD[curr_fd].sbFile], mod_name_string); | |
65b07ddc | 1138 | #endif |
42d99b82 EZ |
1139 | if (CURR_FILE_END > end_adr) |
1140 | { | |
1141 | TELL_OBJFILE; | |
1142 | warning ("File \"%s\" [0x%x] crosses end of module \"%s\".", | |
1143 | &vt_bits[(long) qFD[curr_fd].sbFile], | |
1144 | curr_fd, mod_name_string); | |
1145 | end_adr = CURR_FILE_END; | |
1146 | } | |
1147 | curr_fd++; | |
1148 | } | |
1149 | curr_fd--; /* back up after going too far */ | |
1150 | } | |
1151 | ||
1152 | /* Sometimes (compiler bug -- COBOL) the module end address is higher | |
1153 | than the start address of the next module, so check for that and | |
1154 | adjust accordingly */ | |
1155 | ||
1156 | if (VALID_MODULE (curr_md + 1) && (MODULE_START (curr_md + 1) <= end_adr)) | |
1157 | { | |
1158 | TELL_OBJFILE; | |
1159 | warning ("Module \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.", | |
1160 | mod_name_string, curr_md); | |
1161 | end_adr = MODULE_START (curr_md + 1) - 1; /* Is -4 (or -8 for 64-bit) better? */ | |
1162 | } | |
1163 | if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr)) | |
1164 | { | |
1165 | TELL_OBJFILE; | |
1166 | warning ("Module \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.", | |
1167 | mod_name_string, curr_md); | |
1168 | end_adr = FILE_START (curr_fd + 1) - 1; /* Is -4 (or -8 for 64-bit) better? */ | |
1169 | } | |
1170 | ||
1171 | /* Use one file to get the full name for the module. This | |
1172 | situation can arise if there is executable code in a #include | |
1173 | file. Each file with code in it gets a qFD. Files which don't | |
1174 | contribute code don't get a qFD, even if they include files | |
1175 | which do, e.g.: | |
1176 | ||
1177 | body.c: rtn.h: | |
1178 | int x; int main() { | |
1179 | #include "rtn.h" return x; | |
1180 | } | |
1181 | ||
1182 | There will a qFD for "rtn.h",and a qMD for "body.c", | |
1183 | but no qMD for "rtn.h" or qFD for "body.c"! | |
1184 | ||
1185 | We pick the name of the last file to overlap with this | |
1186 | module. C convention is to put include files first. In a | |
1187 | perfect world, we could check names and use the file whose full | |
1188 | path name ends with the module name. */ | |
1189 | ||
1190 | if (VALID_CURR_FILE) | |
1191 | full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile]; | |
1192 | else | |
1193 | full_name_string = mod_name_string; | |
1194 | ||
1195 | /* Check if there are any procedures not handled until now, that | |
1196 | begin before the start address we have now, and if so, adjust | |
1197 | this psymtab's start address to include them. This handles routines that | |
1198 | are in between file or module ranges for some reason (probably | |
1199 | indicates a compiler bug */ | |
1200 | ||
1201 | if (CURR_PROC_START < start_adr) | |
1202 | { | |
1203 | TELL_OBJFILE; | |
1204 | warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.", | |
1205 | &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd); | |
1206 | start_adr = CURR_PROC_START; | |
1207 | if (CURR_PROC_ISYM < start_sym) | |
1208 | start_sym = CURR_PROC_ISYM; | |
1209 | } | |
65b07ddc DT |
1210 | |
1211 | #ifdef DUMPING | |
42d99b82 EZ |
1212 | if (dumping) |
1213 | { | |
1214 | printf ("Make new psymtab for module %s (%x to %x), using file %s\n", | |
1215 | mod_name_string, start_adr, end_adr, full_name_string); | |
1216 | } | |
65b07ddc | 1217 | #endif |
42d99b82 EZ |
1218 | /* Create the basic psymtab, connecting it in the list |
1219 | for this objfile and pointing its symbol entries | |
1220 | to the current end of the symbol areas in the objfile. | |
1221 | ||
1222 | The "ldsymoff" parameter is the byte offset in the LNTT | |
1223 | of the first symbol in this file. Some day we should | |
1224 | turn this into an index (fix in hp-symtab-read.c as well). | |
1225 | And it's not even the right byte offset, as we're using | |
1226 | the size of a union! FIXME! */ | |
1227 | pst = hpread_start_psymtab (objfile, | |
1228 | section_offsets, /* ?? */ | |
1229 | full_name_string, | |
1230 | start_adr, /* Low text address */ | |
1231 | (start_sym * sizeof (struct dntt_type_block)), | |
1232 | /* ldsymoff */ | |
1233 | global_syms, | |
1234 | static_syms); | |
1235 | ||
1236 | /* Set up to only enter each class referenced in this module once. */ | |
1237 | class_entered = malloc (B_BYTES (pxdb_header_p->cd_entries)); | |
1238 | B_CLRALL (class_entered, pxdb_header_p->cd_entries); | |
1239 | ||
1240 | /* Scan the procedure descriptors for procedures in the current | |
1241 | module, based on the starting addresses. */ | |
1242 | ||
1243 | syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries, | |
1244 | start_adr, end_adr, | |
1245 | pst, vt_bits, objfile, section_offsets); | |
1246 | ||
1247 | /* Get ending symbol offset */ | |
1248 | ||
1249 | end_sym = 0; | |
1250 | /* First check for starting index before previous psymtab */ | |
1251 | if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end) | |
1252 | { | |
1253 | end_sym = find_next_pst_start (start_sym); | |
1254 | } | |
1255 | /* Look for next start index of a file or module, or procedure */ | |
1256 | if (!end_sym) | |
1257 | { | |
1258 | int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p); | |
1259 | int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md + 1, pxdb_header_p); | |
1260 | int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p); | |
1261 | ||
1262 | if (next_file_isym && next_module_isym) | |
1263 | { | |
1264 | /* pick lower of next file or module start index */ | |
1265 | end_sym = min (next_file_isym, next_module_isym); | |
1266 | } | |
1267 | else | |
1268 | { | |
1269 | /* one of them is zero, pick the other */ | |
1270 | end_sym = max (next_file_isym, next_module_isym); | |
1271 | } | |
1272 | ||
1273 | /* As a precaution, check next procedure index too */ | |
1274 | if (!end_sym) | |
1275 | end_sym = next_proc_isym; | |
1276 | else | |
1277 | end_sym = min (end_sym, next_proc_isym); | |
1278 | } | |
1279 | ||
1280 | /* Couldn't find procedure, file, or module, use globals as default */ | |
1281 | if (!end_sym) | |
1282 | end_sym = pxdb_header_p->globals; | |
65b07ddc DT |
1283 | |
1284 | #ifdef DUMPING | |
42d99b82 EZ |
1285 | if (dumping) |
1286 | { | |
1287 | printf ("Module psymtab indices: %x to %x\n", start_sym, end_sym); | |
1288 | } | |
65b07ddc DT |
1289 | #endif |
1290 | ||
42d99b82 EZ |
1291 | pst = hpread_end_psymtab (pst, |
1292 | NULL, /* psymtab_include_list */ | |
1293 | 0, /* includes_used */ | |
1294 | end_sym * sizeof (struct dntt_type_block), | |
1295 | /* byte index in LNTT of end | |
1296 | = capping symbol offset | |
1297 | = LDSYMOFF of nextfile */ | |
1298 | end_adr, /* text high */ | |
1299 | NULL, /* dependency_list */ | |
1300 | 0); /* dependencies_used */ | |
65b07ddc | 1301 | |
42d99b82 | 1302 | record_pst_syms (start_sym, end_sym); |
65b07ddc | 1303 | |
42d99b82 EZ |
1304 | if (NULL == pst) |
1305 | warning ("No symbols in psymtab for module \"%s\" [0x%x].", mod_name_string, curr_md); | |
65b07ddc DT |
1306 | |
1307 | #ifdef DUMPING | |
42d99b82 EZ |
1308 | if (dumping) |
1309 | { | |
1310 | printf ("Made new psymtab for module %s (%x to %x), sym %x to %x.\n", | |
1311 | mod_name_string, start_adr, end_adr, CURR_MODULE_ISYM, end_sym); | |
1312 | } | |
65b07ddc DT |
1313 | #endif |
1314 | ||
42d99b82 EZ |
1315 | /* Prepare for the next psymtab. */ |
1316 | global_syms = objfile->global_psymbols.next; | |
1317 | static_syms = objfile->static_psymbols.next; | |
1318 | free (class_entered); | |
65b07ddc | 1319 | |
42d99b82 EZ |
1320 | curr_md++; |
1321 | curr_fd++; | |
1322 | } /* psymtab for module */ | |
1323 | } /* psymtab for non-bogus file or module */ | |
1324 | } /* End of while loop over all files & modules */ | |
65b07ddc DT |
1325 | |
1326 | /* There may be some routines after all files and modules -- these will get | |
1327 | inserted in a separate new module of their own */ | |
42d99b82 EZ |
1328 | if (VALID_CURR_PROC) |
1329 | { | |
65b07ddc | 1330 | start_adr = CURR_PROC_START; |
42d99b82 | 1331 | end_adr = qPD[pxdb_header_p->pd_entries - 1].adrEnd; |
65b07ddc DT |
1332 | TELL_OBJFILE; |
1333 | warning ("Found functions beyond end of all files and modules [0x%x].", curr_pd); | |
1334 | #ifdef DUMPING | |
42d99b82 EZ |
1335 | if (dumping) |
1336 | { | |
1337 | printf ("Orphan functions at end, PD %d and beyond (%x to %x)\n", | |
1338 | curr_pd, start_adr, end_adr); | |
1339 | } | |
65b07ddc | 1340 | #endif |
42d99b82 EZ |
1341 | pst = hpread_start_psymtab (objfile, |
1342 | section_offsets, /* ?? */ | |
1343 | "orphans", | |
1344 | start_adr, /* Low text address */ | |
1345 | (CURR_PROC_ISYM * sizeof (struct dntt_type_block)), | |
1346 | /* ldsymoff */ | |
1347 | global_syms, | |
1348 | static_syms); | |
1349 | ||
65b07ddc | 1350 | scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries, |
42d99b82 EZ |
1351 | start_adr, end_adr, |
1352 | pst, vt_bits, objfile, section_offsets); | |
1353 | ||
65b07ddc | 1354 | pst = hpread_end_psymtab (pst, |
42d99b82 EZ |
1355 | NULL, /* psymtab_include_list */ |
1356 | 0, /* includes_used */ | |
1357 | pxdb_header_p->globals * sizeof (struct dntt_type_block), | |
1358 | /* byte index in LNTT of end | |
1359 | = capping symbol offset | |
1360 | = LDSYMOFF of nextfile */ | |
1361 | end_adr, /* text high */ | |
1362 | NULL, /* dependency_list */ | |
1363 | 0); /* dependencies_used */ | |
1364 | } | |
65b07ddc DT |
1365 | |
1366 | ||
1367 | #ifdef NEVER_NEVER | |
1368 | /* Now build psts for non-module things (in the tail of | |
893a9f13 | 1369 | the LNTT, after the last END MODULE entry). |
42d99b82 | 1370 | |
893a9f13 EZ |
1371 | If null psts were kept on the chain, this would be |
1372 | a solution. FIXME */ | |
42d99b82 EZ |
1373 | pst = hpread_start_psymtab (objfile, |
1374 | section_offsets, | |
65b07ddc | 1375 | "globals", |
42d99b82 | 1376 | 0, |
65b07ddc | 1377 | (pxdb_header_p->globals |
42d99b82 EZ |
1378 | * sizeof (struct dntt_type_block)), |
1379 | objfile->global_psymbols.next, | |
1380 | objfile->static_psymbols.next); | |
1381 | hpread_end_psymtab (pst, | |
1382 | NULL, 0, | |
1383 | (max_LNTT_sym_index * sizeof (struct dntt_type_block)), | |
1384 | 0, | |
1385 | NULL, 0); | |
65b07ddc DT |
1386 | #endif |
1387 | ||
42d99b82 | 1388 | clear_pst_syms (); |
65b07ddc | 1389 | |
42d99b82 | 1390 | return 1; |
65b07ddc | 1391 | |
42d99b82 | 1392 | } /* End of hpread_quick_traverse. */ |
65b07ddc | 1393 | \f |
42d99b82 | 1394 | |
65b07ddc DT |
1395 | /* Get appropriate header, based on pxdb type. |
1396 | Return value: 1 if ok, 0 if not */ | |
1397 | int | |
42d99b82 EZ |
1398 | hpread_get_header (objfile, pxdb_header_p) |
1399 | struct objfile *objfile; | |
1400 | PXDB_header_ptr pxdb_header_p; | |
65b07ddc DT |
1401 | { |
1402 | asection *pinfo_section, *debug_section, *header_section; | |
1403 | ||
1404 | #ifdef DUMPING | |
893a9f13 | 1405 | /* Turn on for debugging information */ |
65b07ddc DT |
1406 | static int dumping = 0; |
1407 | #endif | |
1408 | ||
1409 | header_section = bfd_get_section_by_name (objfile->obfd, "$HEADER$"); | |
42d99b82 EZ |
1410 | if (!header_section) |
1411 | { | |
65b07ddc | 1412 | /* We don't have either PINFO or DEBUG sections. But |
893a9f13 EZ |
1413 | stuff like "libc.sl" has no debug info. There's no |
1414 | need to warn the user of this, as it may be ok. The | |
1415 | caller will figure it out and issue any needed | |
1416 | messages. */ | |
65b07ddc | 1417 | #ifdef DUMPING |
42d99b82 EZ |
1418 | if (dumping) |
1419 | printf ("==No debug info at all for %s.\n", objfile->name); | |
65b07ddc | 1420 | #endif |
42d99b82 | 1421 | |
65b07ddc | 1422 | return 0; |
42d99b82 | 1423 | } |
65b07ddc DT |
1424 | |
1425 | /* We would like either a $DEBUG$ or $PINFO$ section. | |
893a9f13 EZ |
1426 | Once we know which, we can understand the header |
1427 | data (which we have defined to suit the more common | |
1428 | $DEBUG$ case). */ | |
42d99b82 EZ |
1429 | debug_section = bfd_get_section_by_name (objfile->obfd, "$DEBUG$"); |
1430 | pinfo_section = bfd_get_section_by_name (objfile->obfd, "$PINFO$"); | |
1431 | if (debug_section) | |
1432 | { | |
893a9f13 | 1433 | /* The expected case: normal pxdb header. */ |
42d99b82 EZ |
1434 | bfd_get_section_contents (objfile->obfd, header_section, |
1435 | pxdb_header_p, 0, sizeof (PXDB_header)); | |
65b07ddc | 1436 | |
42d99b82 EZ |
1437 | if (!pxdb_header_p->pxdbed) |
1438 | { | |
1439 | /* This shouldn't happen if we check in "symfile.c". */ | |
1440 | return 0; | |
1441 | } /* DEBUG section */ | |
1442 | } | |
65b07ddc | 1443 | |
42d99b82 EZ |
1444 | else if (pinfo_section) |
1445 | { | |
65b07ddc | 1446 | /* The DOC case; we need to translate this into a |
893a9f13 | 1447 | regular header. */ |
42d99b82 EZ |
1448 | DOC_info_PXDB_header doc_header; |
1449 | ||
65b07ddc | 1450 | #ifdef DUMPING |
42d99b82 EZ |
1451 | if (dumping) |
1452 | { | |
1453 | printf ("==OOps, PINFO, let's try to handle this, %s.\n", objfile->name); | |
1454 | } | |
1455 | #endif | |
1456 | ||
1457 | bfd_get_section_contents (objfile->obfd, | |
1458 | header_section, | |
1459 | &doc_header, 0, | |
1460 | sizeof (DOC_info_PXDB_header)); | |
1461 | ||
1462 | if (!doc_header.pxdbed) | |
1463 | { | |
1464 | /* This shouldn't happen if we check in "symfile.c". */ | |
1465 | warning ("File \"%s\" not processed by pxdb!", objfile->name); | |
1466 | return 0; | |
1467 | } | |
65b07ddc | 1468 | |
893a9f13 | 1469 | /* Copy relevent fields to standard header passed in. */ |
65b07ddc DT |
1470 | pxdb_header_p->pd_entries = doc_header.pd_entries; |
1471 | pxdb_header_p->fd_entries = doc_header.fd_entries; | |
1472 | pxdb_header_p->md_entries = doc_header.md_entries; | |
42d99b82 EZ |
1473 | pxdb_header_p->pxdbed = doc_header.pxdbed; |
1474 | pxdb_header_p->bighdr = doc_header.bighdr; | |
1475 | pxdb_header_p->sa_header = doc_header.sa_header; | |
1476 | pxdb_header_p->inlined = doc_header.inlined; | |
1477 | pxdb_header_p->globals = doc_header.globals; | |
1478 | pxdb_header_p->time = doc_header.time; | |
65b07ddc | 1479 | pxdb_header_p->pg_entries = doc_header.pg_entries; |
42d99b82 EZ |
1480 | pxdb_header_p->functions = doc_header.functions; |
1481 | pxdb_header_p->files = doc_header.files; | |
65b07ddc DT |
1482 | pxdb_header_p->cd_entries = doc_header.cd_entries; |
1483 | pxdb_header_p->aa_entries = doc_header.aa_entries; | |
1484 | pxdb_header_p->oi_entries = doc_header.oi_entries; | |
42d99b82 EZ |
1485 | pxdb_header_p->version = doc_header.version; |
1486 | } /* PINFO section */ | |
65b07ddc | 1487 | |
42d99b82 | 1488 | else |
65b07ddc DT |
1489 | { |
1490 | #ifdef DUMPING | |
42d99b82 EZ |
1491 | if (dumping) |
1492 | printf ("==No debug info at all for %s.\n", objfile->name); | |
65b07ddc DT |
1493 | #endif |
1494 | ||
1495 | return 0; | |
1496 | ||
1497 | } | |
1498 | ||
1499 | return 1; | |
42d99b82 EZ |
1500 | } /* End of hpread_get_header */ |
1501 | #endif /* QUICK_LOOK_UP */ | |
65b07ddc | 1502 | \f |
42d99b82 | 1503 | |
65b07ddc DT |
1504 | /* Initialization for reading native HP C debug symbols from OBJFILE. |
1505 | ||
1506 | Its only purpose in life is to set up the symbol reader's private | |
1507 | per-objfile data structures, and read in the raw contents of the debug | |
1508 | sections (attaching pointers to the debug info into the private data | |
1509 | structures). | |
1510 | ||
1511 | Since BFD doesn't know how to read debug symbols in a format-independent | |
1512 | way (and may never do so...), we have to do it ourselves. Note we may | |
1513 | be called on a file without native HP C debugging symbols. | |
1514 | ||
1515 | FIXME, there should be a cleaner peephole into the BFD environment | |
893a9f13 | 1516 | here. */ |
65b07ddc DT |
1517 | void |
1518 | hpread_symfile_init (objfile) | |
1519 | struct objfile *objfile; | |
1520 | { | |
1521 | asection *vt_section, *slt_section, *lntt_section, *gntt_section; | |
1522 | ||
1523 | /* Allocate struct to keep track of the symfile */ | |
1524 | objfile->sym_private = (PTR) | |
1525 | xmmalloc (objfile->md, sizeof (struct hpread_symfile_info)); | |
1526 | memset (objfile->sym_private, 0, sizeof (struct hpread_symfile_info)); | |
1527 | ||
1528 | /* We haven't read in any types yet. */ | |
1529 | TYPE_VECTOR (objfile) = 0; | |
1530 | ||
1531 | /* Read in data from the $GNTT$ subspace. */ | |
1532 | gntt_section = bfd_get_section_by_name (objfile->obfd, "$GNTT$"); | |
1533 | if (!gntt_section) | |
1534 | return; | |
42d99b82 | 1535 | |
65b07ddc DT |
1536 | GNTT (objfile) |
1537 | = obstack_alloc (&objfile->symbol_obstack, | |
1538 | bfd_section_size (objfile->obfd, gntt_section)); | |
1539 | ||
1540 | bfd_get_section_contents (objfile->obfd, gntt_section, GNTT (objfile), | |
1541 | 0, bfd_section_size (objfile->obfd, gntt_section)); | |
1542 | ||
1543 | GNTT_SYMCOUNT (objfile) | |
1544 | = bfd_section_size (objfile->obfd, gntt_section) | |
42d99b82 | 1545 | / sizeof (struct dntt_type_block); |
65b07ddc DT |
1546 | |
1547 | /* Read in data from the $LNTT$ subspace. Also keep track of the number | |
42d99b82 EZ |
1548 | of LNTT symbols. |
1549 | ||
893a9f13 | 1550 | FIXME: this could be moved into the psymtab-to-symtab expansion |
42d99b82 EZ |
1551 | code, and save startup time. At the moment this data is |
1552 | still used, though. We'd need a way to tell hp-symtab-read.c | |
1553 | whether or not to load the LNTT. */ | |
65b07ddc DT |
1554 | lntt_section = bfd_get_section_by_name (objfile->obfd, "$LNTT$"); |
1555 | if (!lntt_section) | |
1556 | return; | |
1557 | ||
1558 | LNTT (objfile) | |
1559 | = obstack_alloc (&objfile->symbol_obstack, | |
1560 | bfd_section_size (objfile->obfd, lntt_section)); | |
1561 | ||
1562 | bfd_get_section_contents (objfile->obfd, lntt_section, LNTT (objfile), | |
1563 | 0, bfd_section_size (objfile->obfd, lntt_section)); | |
1564 | ||
1565 | LNTT_SYMCOUNT (objfile) | |
1566 | = bfd_section_size (objfile->obfd, lntt_section) | |
42d99b82 | 1567 | / sizeof (struct dntt_type_block); |
65b07ddc DT |
1568 | |
1569 | /* Read in data from the $SLT$ subspace. $SLT$ contains information | |
1570 | on source line numbers. */ | |
1571 | slt_section = bfd_get_section_by_name (objfile->obfd, "$SLT$"); | |
1572 | if (!slt_section) | |
1573 | return; | |
1574 | ||
1575 | SLT (objfile) = | |
1576 | obstack_alloc (&objfile->symbol_obstack, | |
1577 | bfd_section_size (objfile->obfd, slt_section)); | |
1578 | ||
1579 | bfd_get_section_contents (objfile->obfd, slt_section, SLT (objfile), | |
1580 | 0, bfd_section_size (objfile->obfd, slt_section)); | |
1581 | ||
1582 | /* Read in data from the $VT$ subspace. $VT$ contains things like | |
1583 | names and constants. Keep track of the number of symbols in the VT. */ | |
1584 | vt_section = bfd_get_section_by_name (objfile->obfd, "$VT$"); | |
1585 | if (!vt_section) | |
1586 | return; | |
1587 | ||
1588 | VT_SIZE (objfile) = bfd_section_size (objfile->obfd, vt_section); | |
1589 | ||
1590 | VT (objfile) = | |
1591 | (char *) obstack_alloc (&objfile->symbol_obstack, | |
1592 | VT_SIZE (objfile)); | |
1593 | ||
1594 | bfd_get_section_contents (objfile->obfd, vt_section, VT (objfile), | |
1595 | 0, VT_SIZE (objfile)); | |
1596 | } | |
1597 | ||
1598 | /* Scan and build partial symbols for a symbol file. | |
42d99b82 EZ |
1599 | |
1600 | The minimal symbol table (either SOM or HP a.out) has already been | |
1601 | read in; all we need to do is setup partial symbols based on the | |
1602 | native debugging information. | |
1603 | ||
1604 | Note that the minimal table is produced by the linker, and has | |
1605 | only global routines in it; the psymtab is based on compiler- | |
1606 | generated debug information and has non-global | |
1607 | routines in it as well as files and class information. | |
1608 | ||
1609 | We assume hpread_symfile_init has been called to initialize the | |
1610 | symbol reader's private data structures. | |
1611 | ||
1612 | SECTION_OFFSETS contains offsets relative to which the symbols in the | |
1613 | various sections are (depending where the sections were actually loaded). | |
1614 | MAINLINE is true if we are reading the main symbol table (as | |
893a9f13 | 1615 | opposed to a shared lib or dynamically loaded file). */ |
65b07ddc DT |
1616 | void |
1617 | hpread_build_psymtabs (objfile, section_offsets, mainline) | |
42d99b82 | 1618 | struct objfile *objfile; |
65b07ddc | 1619 | struct section_offsets *section_offsets; |
42d99b82 | 1620 | int mainline; |
65b07ddc DT |
1621 | { |
1622 | ||
1623 | #ifdef DUMPING | |
893a9f13 | 1624 | /* Turn this on to get debugging output. */ |
42d99b82 | 1625 | static int dumping = 0; |
65b07ddc DT |
1626 | #endif |
1627 | ||
1628 | char *namestring; | |
1629 | int past_first_source_file = 0; | |
1630 | struct cleanup *old_chain; | |
1631 | ||
1632 | int hp_symnum, symcount, i; | |
1633 | int scan_start; | |
1634 | ||
1635 | union dnttentry *dn_bufp; | |
1636 | unsigned long valu; | |
1637 | char *p; | |
1638 | int texthigh = 0; | |
1639 | int have_name = 0; | |
1640 | ||
1641 | /* Current partial symtab */ | |
1642 | struct partial_symtab *pst; | |
1643 | ||
1644 | /* List of current psymtab's include files */ | |
1645 | char **psymtab_include_list; | |
1646 | int includes_allocated; | |
1647 | int includes_used; | |
1648 | ||
1649 | /* Index within current psymtab dependency list */ | |
1650 | struct partial_symtab **dependency_list; | |
1651 | int dependencies_used, dependencies_allocated; | |
1652 | ||
1653 | /* Just in case the stabs reader left turds lying around. */ | |
1654 | free_pending_blocks (); | |
1655 | make_cleanup (really_free_pendings, 0); | |
1656 | ||
1657 | pst = (struct partial_symtab *) 0; | |
1658 | ||
1659 | /* We shouldn't use alloca, instead use malloc/free. Doing so avoids | |
1660 | a number of problems with cross compilation and creating useless holes | |
1661 | in the stack when we have to allocate new entries. FIXME. */ | |
1662 | ||
1663 | includes_allocated = 30; | |
1664 | includes_used = 0; | |
1665 | psymtab_include_list = (char **) alloca (includes_allocated * | |
1666 | sizeof (char *)); | |
1667 | ||
1668 | dependencies_allocated = 30; | |
1669 | dependencies_used = 0; | |
1670 | dependency_list = | |
1671 | (struct partial_symtab **) alloca (dependencies_allocated * | |
1672 | sizeof (struct partial_symtab *)); | |
1673 | ||
1674 | old_chain = make_cleanup (free_objfile, objfile); | |
1675 | ||
1676 | last_source_file = 0; | |
1677 | ||
1678 | #ifdef QUICK_LOOK_UP | |
42d99b82 EZ |
1679 | { |
1680 | /* Begin code for new-style loading of quick look-up tables. */ | |
1681 | ||
1682 | /* elz: this checks whether the file has beeen processed by pxdb. | |
1683 | If not we would like to try to read the psymbols in | |
1684 | anyway, but it turns out to be not so easy. So this could | |
1685 | actually be commented out, but I leave it in, just in case | |
1686 | we decide to add support for non-pxdb-ed stuff in the future. */ | |
1687 | bfd *abfd; | |
1688 | abfd = symfile_bfd_open (objfile->name); | |
1689 | if (!hpread_pxdb_needed (abfd)) | |
1690 | { | |
1691 | if (psym_new_style) | |
1692 | { | |
1693 | PXDB_header pxdb_header; | |
1694 | int found_modules_in_program; | |
1695 | ||
1696 | if (hpread_get_header (objfile, &pxdb_header)) | |
1697 | { | |
1698 | /* Build a minimal table. No types, no global variables, | |
1699 | no include files.... */ | |
65b07ddc | 1700 | #ifdef DUMPING |
42d99b82 EZ |
1701 | if (dumping) |
1702 | printf ("\nNew method for %s\n", objfile->name); | |
1703 | #endif | |
1704 | ||
1705 | /* elz: quick_traverse returns true if it found | |
1706 | some modules in the main source file, other | |
1707 | than those in end.c | |
1708 | In C and C++, all the files have MODULES entries | |
1709 | in the LNTT, and the quick table traverse is all | |
1710 | based on finding these MODULES entries. Without | |
1711 | those it cannot work. | |
1712 | It happens that F77 programs don't have MODULES | |
1713 | so the quick traverse gets confused. F90 programs | |
1714 | have modules, and the quick method still works. | |
1715 | So, if modules (other than those in end.c) are | |
1716 | not found we give up on the quick table stuff, | |
1717 | and fall back on the slower method */ | |
1718 | found_modules_in_program = hpread_quick_traverse (objfile, | |
1719 | section_offsets, | |
1720 | GNTT (objfile), | |
1721 | VT (objfile), | |
1722 | &pxdb_header); | |
1723 | ||
1724 | discard_cleanups (old_chain); | |
1725 | ||
1726 | /* Set up to scan the global section of the LNTT. | |
1727 | ||
1728 | This field is not always correct: if there are | |
1729 | no globals, it will point to the last record in | |
1730 | the regular LNTT, which is usually an END MODULE. | |
1731 | ||
1732 | Since it might happen that there could be a file | |
1733 | with just one global record, there's no way to | |
1734 | tell other than by looking at the record, so that's | |
1735 | done below. */ | |
1736 | if (found_modules_in_program) | |
1737 | scan_start = pxdb_header.globals; | |
1738 | else | |
1739 | scan_start = 0; | |
1740 | } | |
65b07ddc DT |
1741 | |
1742 | #ifdef DUMPING | |
42d99b82 EZ |
1743 | else |
1744 | { | |
1745 | if (dumping) | |
1746 | printf ("\nGoing on to old method for %s\n", objfile->name); | |
1747 | } | |
65b07ddc DT |
1748 | #endif |
1749 | ||
42d99b82 EZ |
1750 | } /* End of new method code */ |
1751 | } /* end of if pxdb exists */ | |
1752 | /* elz: if pxdb does not exists on the system, then scan the whole debug info | |
1753 | Actually this will never be reached because we error out in case there | |
1754 | is no pxdb on the system. It turns out that the debug info cannot be | |
1755 | handled the same way as after bxdb has been run, and gdb gets very | |
1756 | very confused. Ileave this in anyway, in case one day we want to | |
1757 | support non pxdb-ed files. */ | |
1758 | else | |
1759 | scan_start = 0; | |
65b07ddc | 1760 | |
42d99b82 | 1761 | bfd_close (abfd); /* close the bfd we opened to check for pxdb */ |
65b07ddc | 1762 | |
42d99b82 | 1763 | } /* end of ifdef QUICK_LOOK_UP */ |
65b07ddc | 1764 | #else |
42d99b82 EZ |
1765 | scan_start = 0; /* if we don't want quick lookup tables start |
1766 | from the beginning */ | |
65b07ddc DT |
1767 | #endif |
1768 | ||
1769 | /* Make two passes, one over the GNTT symbols, the other for the | |
893a9f13 | 1770 | LNTT symbols. |
42d99b82 EZ |
1771 | |
1772 | JB comment: above isn't true--they only make one pass, over | |
1773 | the LNTT. */ | |
65b07ddc DT |
1774 | for (i = 0; i < 1; i++) |
1775 | { | |
1776 | int within_function = 0; | |
1777 | ||
1778 | if (i) | |
1779 | symcount = GNTT_SYMCOUNT (objfile); | |
1780 | else | |
42d99b82 | 1781 | symcount = LNTT_SYMCOUNT (objfile); |
65b07ddc DT |
1782 | |
1783 | ||
1784 | for (hp_symnum = scan_start; hp_symnum < symcount; hp_symnum++) | |
1785 | { | |
1786 | QUIT; | |
1787 | if (i) | |
1788 | dn_bufp = hpread_get_gntt (hp_symnum, objfile); | |
1789 | else | |
1790 | dn_bufp = hpread_get_lntt (hp_symnum, objfile); | |
1791 | ||
1792 | if (dn_bufp->dblock.extension) | |
1793 | continue; | |
1794 | ||
1795 | /* Only handle things which are necessary for minimal symbols. | |
1796 | everything else is ignored. */ | |
1797 | switch (dn_bufp->dblock.kind) | |
1798 | { | |
1799 | case DNTT_TYPE_SRCFILE: | |
1800 | { | |
1801 | #ifdef QUICK_LOOK_UP | |
42d99b82 EZ |
1802 | if (scan_start == hp_symnum |
1803 | && symcount == hp_symnum + 1) | |
1804 | { | |
1805 | /* If there are NO globals in an executable, | |
1806 | PXDB's index to the globals will point to | |
1807 | the last record in the file, which | |
1808 | could be this record. (this happened for F77 libraries) | |
1809 | ignore it and be done! */ | |
1810 | continue; | |
1811 | } | |
65b07ddc DT |
1812 | #endif |
1813 | ||
1814 | /* A source file of some kind. Note this may simply | |
1815 | be an included file. */ | |
1816 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
1817 | ||
1818 | /* Check if this is the source file we are already working | |
1819 | with. */ | |
1820 | if (pst && !strcmp (namestring, pst->filename)) | |
1821 | continue; | |
1822 | ||
1823 | /* Check if this is an include file, if so check if we have | |
1824 | already seen it. Add it to the include list */ | |
1825 | p = strrchr (namestring, '.'); | |
1826 | if (!strcmp (p, ".h")) | |
1827 | { | |
1828 | int j, found; | |
1829 | ||
1830 | found = 0; | |
1831 | for (j = 0; j < includes_used; j++) | |
1832 | if (!strcmp (namestring, psymtab_include_list[j])) | |
1833 | { | |
1834 | found = 1; | |
1835 | break; | |
1836 | } | |
1837 | if (found) | |
1838 | continue; | |
1839 | ||
1840 | /* Add it to the list of includes seen so far and | |
1841 | allocate more include space if necessary. */ | |
1842 | psymtab_include_list[includes_used++] = namestring; | |
1843 | if (includes_used >= includes_allocated) | |
1844 | { | |
1845 | char **orig = psymtab_include_list; | |
1846 | ||
1847 | psymtab_include_list = (char **) | |
1848 | alloca ((includes_allocated *= 2) * | |
1849 | sizeof (char *)); | |
1850 | memcpy ((PTR) psymtab_include_list, (PTR) orig, | |
1851 | includes_used * sizeof (char *)); | |
1852 | } | |
1853 | continue; | |
1854 | } | |
1855 | ||
1856 | if (pst) | |
1857 | { | |
1858 | if (!have_name) | |
1859 | { | |
1860 | pst->filename = (char *) | |
1861 | obstack_alloc (&pst->objfile->psymbol_obstack, | |
1862 | strlen (namestring) + 1); | |
1863 | strcpy (pst->filename, namestring); | |
1864 | have_name = 1; | |
1865 | continue; | |
1866 | } | |
1867 | continue; | |
1868 | } | |
1869 | ||
1870 | /* This is a bonafide new source file. | |
1871 | End the current partial symtab and start a new one. */ | |
1872 | ||
1873 | if (pst && past_first_source_file) | |
1874 | { | |
1875 | hpread_end_psymtab (pst, psymtab_include_list, | |
1876 | includes_used, | |
1877 | (hp_symnum | |
1878 | * sizeof (struct dntt_type_block)), | |
1879 | texthigh, | |
1880 | dependency_list, dependencies_used); | |
1881 | pst = (struct partial_symtab *) 0; | |
1882 | includes_used = 0; | |
1883 | dependencies_used = 0; | |
1884 | } | |
1885 | else | |
1886 | past_first_source_file = 1; | |
1887 | ||
1888 | valu = hpread_get_textlow (i, hp_symnum, objfile, symcount); | |
1889 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
1890 | pst = hpread_start_psymtab (objfile, section_offsets, | |
1891 | namestring, valu, | |
1892 | (hp_symnum | |
1893 | * sizeof (struct dntt_type_block)), | |
1894 | objfile->global_psymbols.next, | |
1895 | objfile->static_psymbols.next); | |
1896 | texthigh = valu; | |
1897 | have_name = 1; | |
1898 | continue; | |
1899 | } | |
1900 | ||
1901 | case DNTT_TYPE_MODULE: | |
1902 | /* A source file. It's still unclear to me what the | |
42d99b82 EZ |
1903 | real difference between a DNTT_TYPE_SRCFILE and DNTT_TYPE_MODULE |
1904 | is supposed to be. */ | |
1905 | ||
1906 | /* First end the previous psymtab */ | |
1907 | if (pst) | |
1908 | { | |
1909 | hpread_end_psymtab (pst, psymtab_include_list, includes_used, | |
1910 | ((hp_symnum - 1) | |
1911 | * sizeof (struct dntt_type_block)), | |
1912 | texthigh, | |
1913 | dependency_list, dependencies_used); | |
1914 | pst = (struct partial_symtab *) 0; | |
1915 | includes_used = 0; | |
1916 | dependencies_used = 0; | |
1917 | have_name = 0; | |
65b07ddc DT |
1918 | } |
1919 | ||
42d99b82 EZ |
1920 | /* Now begin a new module and a new psymtab for it */ |
1921 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
1922 | valu = hpread_get_textlow (i, hp_symnum, objfile, symcount); | |
1923 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
1924 | if (!pst) | |
1925 | { | |
1926 | pst = hpread_start_psymtab (objfile, section_offsets, | |
1927 | namestring, valu, | |
1928 | (hp_symnum | |
1929 | * sizeof (struct dntt_type_block)), | |
1930 | objfile->global_psymbols.next, | |
1931 | objfile->static_psymbols.next); | |
1932 | texthigh = valu; | |
1933 | have_name = 0; | |
1934 | } | |
1935 | continue; | |
65b07ddc DT |
1936 | |
1937 | case DNTT_TYPE_FUNCTION: | |
1938 | case DNTT_TYPE_ENTRY: | |
1939 | /* The beginning of a function. DNTT_TYPE_ENTRY may also denote | |
42d99b82 | 1940 | a secondary entry point. */ |
65b07ddc DT |
1941 | valu = dn_bufp->dfunc.hiaddr + ANOFFSET (section_offsets, |
1942 | SECT_OFF_TEXT); | |
1943 | if (valu > texthigh) | |
1944 | texthigh = valu; | |
1945 | valu = dn_bufp->dfunc.lowaddr + | |
1946 | ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
1947 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
42d99b82 EZ |
1948 | if (dn_bufp->dfunc.global) |
1949 | add_psymbol_to_list (namestring, strlen (namestring), | |
1950 | VAR_NAMESPACE, LOC_BLOCK, | |
1951 | &objfile->global_psymbols, valu, | |
1952 | 0, language_unknown, objfile); | |
1953 | else | |
1954 | add_psymbol_to_list (namestring, strlen (namestring), | |
1955 | VAR_NAMESPACE, LOC_BLOCK, | |
1956 | &objfile->static_psymbols, valu, | |
1957 | 0, language_unknown, objfile); | |
65b07ddc DT |
1958 | within_function = 1; |
1959 | continue; | |
1960 | ||
1961 | case DNTT_TYPE_DOC_FUNCTION: | |
1962 | valu = dn_bufp->ddocfunc.hiaddr + ANOFFSET (section_offsets, | |
42d99b82 | 1963 | SECT_OFF_TEXT); |
65b07ddc DT |
1964 | if (valu > texthigh) |
1965 | texthigh = valu; | |
1966 | valu = dn_bufp->ddocfunc.lowaddr + | |
1967 | ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
1968 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
42d99b82 EZ |
1969 | if (dn_bufp->ddocfunc.global) |
1970 | add_psymbol_to_list (namestring, strlen (namestring), | |
1971 | VAR_NAMESPACE, LOC_BLOCK, | |
1972 | &objfile->global_psymbols, valu, | |
1973 | 0, language_unknown, objfile); | |
1974 | else | |
1975 | add_psymbol_to_list (namestring, strlen (namestring), | |
1976 | VAR_NAMESPACE, LOC_BLOCK, | |
1977 | &objfile->static_psymbols, valu, | |
1978 | 0, language_unknown, objfile); | |
65b07ddc DT |
1979 | within_function = 1; |
1980 | continue; | |
1981 | ||
42d99b82 | 1982 | case DNTT_TYPE_BEGIN: |
65b07ddc | 1983 | case DNTT_TYPE_END: |
42d99b82 EZ |
1984 | /* We don't check MODULE end here, because there can be |
1985 | symbols beyond the module end which properly belong to the | |
1986 | current psymtab -- so we wait till the next MODULE start */ | |
1987 | ||
65b07ddc DT |
1988 | |
1989 | #ifdef QUICK_LOOK_UP | |
42d99b82 EZ |
1990 | if (scan_start == hp_symnum |
1991 | && symcount == hp_symnum + 1) | |
1992 | { | |
1993 | /* If there are NO globals in an executable, | |
1994 | PXDB's index to the globals will point to | |
1995 | the last record in the file, which is | |
1996 | probably an END MODULE, i.e. this record. | |
1997 | ignore it and be done! */ | |
1998 | continue; | |
1999 | } | |
65b07ddc DT |
2000 | #endif |
2001 | /* Scope block begin/end. We only care about function | |
42d99b82 | 2002 | and file blocks right now. */ |
65b07ddc DT |
2003 | |
2004 | if ((dn_bufp->dend.endkind == DNTT_TYPE_FUNCTION) || | |
42d99b82 | 2005 | (dn_bufp->dend.endkind == DNTT_TYPE_DOC_FUNCTION)) |
65b07ddc DT |
2006 | within_function = 0; |
2007 | continue; | |
2008 | ||
2009 | case DNTT_TYPE_SVAR: | |
2010 | case DNTT_TYPE_DVAR: | |
2011 | case DNTT_TYPE_TYPEDEF: | |
2012 | case DNTT_TYPE_TAGDEF: | |
2013 | { | |
2014 | /* Variables, typedefs an the like. */ | |
2015 | enum address_class storage; | |
2016 | namespace_enum namespace; | |
2017 | ||
2018 | /* Don't add locals to the partial symbol table. */ | |
2019 | if (within_function | |
2020 | && (dn_bufp->dblock.kind == DNTT_TYPE_SVAR | |
2021 | || dn_bufp->dblock.kind == DNTT_TYPE_DVAR)) | |
2022 | continue; | |
2023 | ||
2024 | /* TAGDEFs go into the structure namespace. */ | |
2025 | if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF) | |
2026 | namespace = STRUCT_NAMESPACE; | |
2027 | else | |
2028 | namespace = VAR_NAMESPACE; | |
2029 | ||
2030 | /* What kind of "storage" does this use? */ | |
2031 | if (dn_bufp->dblock.kind == DNTT_TYPE_SVAR) | |
2032 | storage = LOC_STATIC; | |
2033 | else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR | |
2034 | && dn_bufp->ddvar.regvar) | |
2035 | storage = LOC_REGISTER; | |
2036 | else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR) | |
2037 | storage = LOC_LOCAL; | |
2038 | else | |
2039 | storage = LOC_UNDEF; | |
2040 | ||
2041 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
42d99b82 EZ |
2042 | if (!pst) |
2043 | { | |
65b07ddc DT |
2044 | pst = hpread_start_psymtab (objfile, section_offsets, |
2045 | "globals", 0, | |
2046 | (hp_symnum | |
2047 | * sizeof (struct dntt_type_block)), | |
2048 | objfile->global_psymbols.next, | |
2049 | objfile->static_psymbols.next); | |
2050 | } | |
2051 | ||
42d99b82 EZ |
2052 | /* Compute address of the data symbol */ |
2053 | valu = dn_bufp->dsvar.location; | |
2054 | /* Relocate in case it's in a shared library */ | |
65b07ddc | 2055 | if (storage == LOC_STATIC) |
42d99b82 | 2056 | valu += ANOFFSET (section_offsets, SECT_OFF_DATA); |
65b07ddc | 2057 | |
42d99b82 EZ |
2058 | /* Luckily, dvar, svar, typedef, and tagdef all |
2059 | have their "global" bit in the same place, so it works | |
893a9f13 | 2060 | (though it's bad programming practice) to reference |
42d99b82 EZ |
2061 | "dsvar.global" even though we may be looking at |
2062 | any of the above four types. */ | |
65b07ddc DT |
2063 | if (dn_bufp->dsvar.global) |
2064 | { | |
2065 | add_psymbol_to_list (namestring, strlen (namestring), | |
2066 | namespace, storage, | |
2067 | &objfile->global_psymbols, | |
2068 | valu, | |
2069 | 0, language_unknown, objfile); | |
2070 | } | |
2071 | else | |
2072 | { | |
2073 | add_psymbol_to_list (namestring, strlen (namestring), | |
2074 | namespace, storage, | |
2075 | &objfile->static_psymbols, | |
2076 | valu, | |
2077 | 0, language_unknown, objfile); | |
2078 | } | |
2079 | ||
42d99b82 EZ |
2080 | /* For TAGDEF's, the above code added the tagname to the |
2081 | struct namespace. This will cause tag "t" to be found | |
2082 | on a reference of the form "(struct t) x". But for | |
2083 | C++ classes, "t" will also be a typename, which we | |
2084 | want to find on a reference of the form "ptype t". | |
2085 | Therefore, we also add "t" to the var namespace. | |
2086 | Do the same for enum's due to the way aCC generates | |
2087 | debug info for these (see more extended comment | |
2088 | in hp-symtab-read.c). | |
2089 | We do the same for templates, so that "ptype t" | |
2090 | where "t" is a template also works. */ | |
65b07ddc | 2091 | if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF && |
42d99b82 EZ |
2092 | dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile)) |
2093 | { | |
2094 | int global = dn_bufp->dtag.global; | |
2095 | /* Look ahead to see if it's a C++ class */ | |
2096 | dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile); | |
2097 | if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS || | |
2098 | dn_bufp->dblock.kind == DNTT_TYPE_ENUM || | |
2099 | dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) | |
2100 | { | |
2101 | if (global) | |
2102 | { | |
2103 | add_psymbol_to_list (namestring, strlen (namestring), | |
2104 | VAR_NAMESPACE, storage, | |
2105 | &objfile->global_psymbols, | |
2106 | dn_bufp->dsvar.location, | |
2107 | 0, language_unknown, objfile); | |
2108 | } | |
2109 | else | |
2110 | { | |
2111 | add_psymbol_to_list (namestring, strlen (namestring), | |
2112 | VAR_NAMESPACE, storage, | |
2113 | &objfile->static_psymbols, | |
2114 | dn_bufp->dsvar.location, | |
2115 | 0, language_unknown, objfile); | |
2116 | } | |
2117 | } | |
2118 | } | |
65b07ddc | 2119 | } |
42d99b82 | 2120 | continue; |
65b07ddc DT |
2121 | |
2122 | case DNTT_TYPE_MEMENUM: | |
2123 | case DNTT_TYPE_CONST: | |
2124 | /* Constants and members of enumerated types. */ | |
2125 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
2126 | if (!pst) | |
2127 | { | |
2128 | pst = hpread_start_psymtab (objfile, section_offsets, | |
2129 | "globals", 0, | |
42d99b82 | 2130 | (hp_symnum |
65b07ddc DT |
2131 | * sizeof (struct dntt_type_block)), |
2132 | objfile->global_psymbols.next, | |
2133 | objfile->static_psymbols.next); | |
2134 | } | |
42d99b82 EZ |
2135 | if (dn_bufp->dconst.global) |
2136 | add_psymbol_to_list (namestring, strlen (namestring), | |
2137 | VAR_NAMESPACE, LOC_CONST, | |
2138 | &objfile->global_psymbols, 0, | |
2139 | 0, language_unknown, objfile); | |
2140 | else | |
2141 | add_psymbol_to_list (namestring, strlen (namestring), | |
2142 | VAR_NAMESPACE, LOC_CONST, | |
2143 | &objfile->static_psymbols, 0, | |
2144 | 0, language_unknown, objfile); | |
65b07ddc DT |
2145 | continue; |
2146 | default: | |
2147 | continue; | |
2148 | } | |
2149 | } | |
2150 | } | |
2151 | ||
893a9f13 | 2152 | /* End any pending partial symbol table. */ |
65b07ddc DT |
2153 | if (pst) |
2154 | { | |
2155 | hpread_end_psymtab (pst, psymtab_include_list, includes_used, | |
2156 | hp_symnum * sizeof (struct dntt_type_block), | |
2157 | 0, dependency_list, dependencies_used); | |
2158 | } | |
2159 | ||
2160 | discard_cleanups (old_chain); | |
2161 | } | |
2162 | ||
2163 | /* Perform any local cleanups required when we are done with a particular | |
2164 | objfile. I.E, we are in the process of discarding all symbol information | |
2165 | for an objfile, freeing up all memory held for it, and unlinking the | |
2166 | objfile struct from the global list of known objfiles. */ | |
2167 | ||
2168 | void | |
2169 | hpread_symfile_finish (objfile) | |
2170 | struct objfile *objfile; | |
2171 | { | |
2172 | if (objfile->sym_private != NULL) | |
2173 | { | |
2174 | mfree (objfile->md, objfile->sym_private); | |
2175 | } | |
2176 | } | |
2177 | \f | |
2178 | ||
2179 | /* The remaining functions are all for internal use only. */ | |
2180 | ||
2181 | /* Various small functions to get entries in the debug symbol sections. */ | |
2182 | ||
2183 | union dnttentry * | |
2184 | hpread_get_lntt (index, objfile) | |
2185 | int index; | |
2186 | struct objfile *objfile; | |
2187 | { | |
2188 | return (union dnttentry *) | |
2189 | &(LNTT (objfile)[(index * sizeof (struct dntt_type_block))]); | |
2190 | } | |
2191 | ||
2192 | static union dnttentry * | |
2193 | hpread_get_gntt (index, objfile) | |
2194 | int index; | |
2195 | struct objfile *objfile; | |
2196 | { | |
2197 | return (union dnttentry *) | |
2198 | &(GNTT (objfile)[(index * sizeof (struct dntt_type_block))]); | |
2199 | } | |
2200 | ||
2201 | union sltentry * | |
2202 | hpread_get_slt (index, objfile) | |
2203 | int index; | |
2204 | struct objfile *objfile; | |
2205 | { | |
42d99b82 | 2206 | return (union sltentry *) &(SLT (objfile)[index * sizeof (union sltentry)]); |
65b07ddc DT |
2207 | } |
2208 | ||
2209 | /* Get the low address associated with some symbol (typically the start | |
2210 | of a particular source file or module). Since that information is not | |
2211 | stored as part of the DNTT_TYPE_MODULE or DNTT_TYPE_SRCFILE symbol we must infer it from | |
2212 | the existance of DNTT_TYPE_FUNCTION symbols. */ | |
2213 | ||
2214 | static unsigned long | |
2215 | hpread_get_textlow (global, index, objfile, symcount) | |
2216 | int global; | |
2217 | int index; | |
2218 | struct objfile *objfile; | |
2219 | int symcount; | |
2220 | { | |
2221 | union dnttentry *dn_bufp; | |
2222 | struct minimal_symbol *msymbol; | |
2223 | ||
2224 | /* Look for a DNTT_TYPE_FUNCTION symbol. */ | |
42d99b82 EZ |
2225 | if (index < symcount) /* symcount is the number of symbols in */ |
2226 | { /* the dbinfo, LNTT table */ | |
2227 | do | |
2228 | { | |
2229 | if (global) | |
2230 | dn_bufp = hpread_get_gntt (index++, objfile); | |
2231 | else | |
2232 | dn_bufp = hpread_get_lntt (index++, objfile); | |
2233 | } | |
2234 | while (dn_bufp->dblock.kind != DNTT_TYPE_FUNCTION | |
2235 | && dn_bufp->dblock.kind != DNTT_TYPE_DOC_FUNCTION | |
65b07ddc | 2236 | && dn_bufp->dblock.kind != DNTT_TYPE_END |
42d99b82 EZ |
2237 | && index < symcount); |
2238 | } | |
65b07ddc DT |
2239 | |
2240 | /* Avoid going past a DNTT_TYPE_END when looking for a DNTT_TYPE_FUNCTION. This | |
2241 | might happen when a sourcefile has no functions. */ | |
2242 | if (dn_bufp->dblock.kind == DNTT_TYPE_END) | |
2243 | return 0; | |
2244 | ||
2245 | /* Avoid going past the end of the LNTT file */ | |
2246 | if (index == symcount) | |
2247 | return 0; | |
2248 | ||
2249 | /* The minimal symbols are typically more accurate for some reason. */ | |
2250 | if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION) | |
2251 | msymbol = lookup_minimal_symbol (dn_bufp->dfunc.name + VT (objfile), NULL, | |
42d99b82 EZ |
2252 | objfile); |
2253 | else /* must be a DNTT_TYPE_DOC_FUNCTION */ | |
65b07ddc | 2254 | msymbol = lookup_minimal_symbol (dn_bufp->ddocfunc.name + VT (objfile), NULL, |
42d99b82 EZ |
2255 | objfile); |
2256 | ||
65b07ddc DT |
2257 | if (msymbol) |
2258 | return SYMBOL_VALUE_ADDRESS (msymbol); | |
2259 | else | |
2260 | return dn_bufp->dfunc.lowaddr; | |
2261 | } | |
2262 | ||
2263 | /* Allocate and partially fill a partial symtab. It will be | |
2264 | completely filled at the end of the symbol list. | |
2265 | ||
2266 | SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR | |
2267 | is the address relative to which its symbols are (incremental) or 0 | |
2268 | (normal). */ | |
2269 | ||
2270 | static struct partial_symtab * | |
2271 | hpread_start_psymtab (objfile, section_offsets, | |
42d99b82 | 2272 | filename, textlow, ldsymoff, global_syms, static_syms) |
65b07ddc DT |
2273 | struct objfile *objfile; |
2274 | struct section_offsets *section_offsets; | |
2275 | char *filename; | |
2276 | CORE_ADDR textlow; | |
2277 | int ldsymoff; | |
2278 | struct partial_symbol **global_syms; | |
2279 | struct partial_symbol **static_syms; | |
2280 | { | |
2281 | int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
42d99b82 | 2282 | extern void hpread_psymtab_to_symtab (); |
65b07ddc DT |
2283 | struct partial_symtab *result = |
2284 | start_psymtab_common (objfile, section_offsets, | |
2285 | filename, textlow, global_syms, static_syms); | |
2286 | ||
2287 | result->textlow += offset; | |
2288 | result->read_symtab_private = (char *) | |
2289 | obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc)); | |
2290 | LDSYMOFF (result) = ldsymoff; | |
2291 | result->read_symtab = hpread_psymtab_to_symtab; | |
2292 | ||
2293 | return result; | |
2294 | } | |
2295 | \f | |
2296 | ||
2297 | /* Close off the current usage of PST. | |
2298 | Returns PST or NULL if the partial symtab was empty and thrown away. | |
2299 | ||
2300 | capping_symbol_offset --Byte index in LNTT or GNTT of the | |
42d99b82 EZ |
2301 | last symbol processed during the build |
2302 | of the previous pst. | |
2303 | ||
65b07ddc DT |
2304 | FIXME: List variables and peculiarities of same. */ |
2305 | ||
2306 | static struct partial_symtab * | |
2307 | hpread_end_psymtab (pst, include_list, num_includes, capping_symbol_offset, | |
42d99b82 | 2308 | capping_text, dependency_list, number_dependencies) |
65b07ddc DT |
2309 | struct partial_symtab *pst; |
2310 | char **include_list; | |
2311 | int num_includes; | |
2312 | int capping_symbol_offset; | |
2313 | CORE_ADDR capping_text; | |
2314 | struct partial_symtab **dependency_list; | |
2315 | int number_dependencies; | |
2316 | { | |
2317 | int i; | |
42d99b82 | 2318 | struct objfile *objfile = pst->objfile; |
65b07ddc DT |
2319 | int offset = ANOFFSET (pst->section_offsets, SECT_OFF_TEXT); |
2320 | ||
2321 | #ifdef DUMPING | |
893a9f13 | 2322 | /* Turn on to see what kind of a psymtab we've built. */ |
65b07ddc DT |
2323 | static int dumping = 0; |
2324 | #endif | |
42d99b82 | 2325 | |
65b07ddc | 2326 | if (capping_symbol_offset != -1) |
42d99b82 | 2327 | LDSYMLEN (pst) = capping_symbol_offset - LDSYMOFF (pst); |
65b07ddc | 2328 | else |
42d99b82 | 2329 | LDSYMLEN (pst) = 0; |
65b07ddc DT |
2330 | pst->texthigh = capping_text + offset; |
2331 | ||
2332 | pst->n_global_syms = | |
2333 | objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset); | |
2334 | pst->n_static_syms = | |
2335 | objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset); | |
2336 | ||
2337 | #ifdef DUMPING | |
42d99b82 EZ |
2338 | if (dumping) |
2339 | { | |
2340 | printf ("\nPst %s, LDSYMOFF %x (%x), LDSYMLEN %x (%x), globals %d, statics %d\n", | |
2341 | pst->filename, | |
2342 | LDSYMOFF (pst), | |
2343 | LDSYMOFF (pst) / sizeof (struct dntt_type_block), | |
2344 | LDSYMLEN (pst), | |
2345 | LDSYMLEN (pst) / sizeof (struct dntt_type_block), | |
2346 | pst->n_global_syms, pst->n_static_syms); | |
2347 | } | |
65b07ddc DT |
2348 | #endif |
2349 | ||
2350 | pst->number_of_dependencies = number_dependencies; | |
2351 | if (number_dependencies) | |
2352 | { | |
2353 | pst->dependencies = (struct partial_symtab **) | |
2354 | obstack_alloc (&objfile->psymbol_obstack, | |
2355 | number_dependencies * sizeof (struct partial_symtab *)); | |
2356 | memcpy (pst->dependencies, dependency_list, | |
42d99b82 | 2357 | number_dependencies * sizeof (struct partial_symtab *)); |
65b07ddc DT |
2358 | } |
2359 | else | |
2360 | pst->dependencies = 0; | |
2361 | ||
2362 | for (i = 0; i < num_includes; i++) | |
2363 | { | |
2364 | struct partial_symtab *subpst = | |
42d99b82 | 2365 | allocate_psymtab (include_list[i], objfile); |
65b07ddc DT |
2366 | |
2367 | subpst->section_offsets = pst->section_offsets; | |
2368 | subpst->read_symtab_private = | |
42d99b82 EZ |
2369 | (char *) obstack_alloc (&objfile->psymbol_obstack, |
2370 | sizeof (struct symloc)); | |
2371 | LDSYMOFF (subpst) = | |
2372 | LDSYMLEN (subpst) = | |
2373 | subpst->textlow = | |
2374 | subpst->texthigh = 0; | |
65b07ddc DT |
2375 | |
2376 | /* We could save slight bits of space by only making one of these, | |
42d99b82 | 2377 | shared by the entire set of include files. FIXME-someday. */ |
65b07ddc DT |
2378 | subpst->dependencies = (struct partial_symtab **) |
2379 | obstack_alloc (&objfile->psymbol_obstack, | |
2380 | sizeof (struct partial_symtab *)); | |
2381 | subpst->dependencies[0] = pst; | |
2382 | subpst->number_of_dependencies = 1; | |
2383 | ||
2384 | subpst->globals_offset = | |
2385 | subpst->n_global_syms = | |
42d99b82 EZ |
2386 | subpst->statics_offset = |
2387 | subpst->n_static_syms = 0; | |
65b07ddc DT |
2388 | |
2389 | subpst->readin = 0; | |
2390 | subpst->symtab = 0; | |
2391 | subpst->read_symtab = pst->read_symtab; | |
2392 | } | |
2393 | ||
2394 | sort_pst_symbols (pst); | |
2395 | ||
2396 | /* If there is already a psymtab or symtab for a file of this name, remove it. | |
2397 | (If there is a symtab, more drastic things also happen.) | |
2398 | This happens in VxWorks. */ | |
2399 | free_named_symtabs (pst->filename); | |
2400 | ||
2401 | if (num_includes == 0 | |
2402 | && number_dependencies == 0 | |
2403 | && pst->n_global_syms == 0 | |
2404 | && pst->n_static_syms == 0) | |
2405 | { | |
2406 | /* Throw away this psymtab, it's empty. We can't deallocate it, since | |
42d99b82 | 2407 | it is on the obstack, but we can forget to chain it on the list. |
893a9f13 | 2408 | Empty psymtabs happen as a result of header files which don't have |
42d99b82 EZ |
2409 | any symbols in them. There can be a lot of them. But this check |
2410 | is wrong, in that a psymtab with N_SLINE entries but nothing else | |
2411 | is not empty, but we don't realize that. Fixing that without slowing | |
2412 | things down might be tricky. | |
893a9f13 EZ |
2413 | It's also wrong if we're using the quick look-up tables, as |
2414 | we can get empty psymtabs from modules with no routines in | |
2415 | them. */ | |
65b07ddc DT |
2416 | |
2417 | discard_psymtab (pst); | |
2418 | ||
2419 | /* Indicate that psymtab was thrown away. */ | |
42d99b82 | 2420 | pst = (struct partial_symtab *) NULL; |
65b07ddc DT |
2421 | |
2422 | } | |
2423 | return pst; | |
2424 | } | |
2425 | ||
2426 | ||
2427 | /* End of hp-psymtab-read.c */ | |
2428 | ||
2429 | /* Set indentation to 4 spaces for Emacs; this file is | |
42d99b82 | 2430 | mostly non-GNU-ish in its style :-( */ |
65b07ddc | 2431 | #if 0 |
42d99b82 EZ |
2432 | ***Local Variables: |
2433 | ***c - basic - offset:4 | |
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2434 | *** End: |
2435 | #endif | |
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2436 | |
2437 |