File: | src/gnu/usr.bin/binutils/gdb/dbxread.c |
Warning: | line 3178, column 7 Array access (from variable 'name') results in a null pointer dereference |
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1 | /* Read dbx symbol tables and convert to internal format, for GDB. | |||
2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, | |||
3 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004. | |||
4 | Free Software Foundation, Inc. | |||
5 | ||||
6 | This file is part of GDB. | |||
7 | ||||
8 | This program is free software; you can redistribute it and/or modify | |||
9 | it under the terms of the GNU General Public License as published by | |||
10 | the Free Software Foundation; either version 2 of the License, or | |||
11 | (at your option) any later version. | |||
12 | ||||
13 | This program is distributed in the hope that it will be useful, | |||
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
16 | GNU General Public License for more details. | |||
17 | ||||
18 | You should have received a copy of the GNU General Public License | |||
19 | along with this program; if not, write to the Free Software | |||
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |||
21 | Boston, MA 02111-1307, USA. */ | |||
22 | ||||
23 | /* This module provides three functions: dbx_symfile_init, | |||
24 | which initializes to read a symbol file; dbx_new_init, which | |||
25 | discards existing cached information when all symbols are being | |||
26 | discarded; and dbx_symfile_read, which reads a symbol table | |||
27 | from a file. | |||
28 | ||||
29 | dbx_symfile_read only does the minimum work necessary for letting the | |||
30 | user "name" things symbolically; it does not read the entire symtab. | |||
31 | Instead, it reads the external and static symbols and puts them in partial | |||
32 | symbol tables. When more extensive information is requested of a | |||
33 | file, the corresponding partial symbol table is mutated into a full | |||
34 | fledged symbol table by going back and reading the symbols | |||
35 | for real. dbx_psymtab_to_symtab() is the function that does this */ | |||
36 | ||||
37 | #include "defs.h" | |||
38 | #include "gdb_string.h" | |||
39 | ||||
40 | #if defined(__CYGNUSCLIB__) | |||
41 | #include <sys/types.h> | |||
42 | #include <fcntl.h> | |||
43 | #endif | |||
44 | ||||
45 | #include "gdb_obstack.h" | |||
46 | #include "gdb_stat.h" | |||
47 | #include "symtab.h" | |||
48 | #include "breakpoint.h" | |||
49 | #include "target.h" | |||
50 | #include "gdbcore.h" /* for bfd stuff */ | |||
51 | #include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */ | |||
52 | #include "objfiles.h" | |||
53 | #include "buildsym.h" | |||
54 | #include "stabsread.h" | |||
55 | #include "gdb-stabs.h" | |||
56 | #include "demangle.h" | |||
57 | #include "complaints.h" | |||
58 | #include "cp-abi.h" | |||
59 | #include "gdb_assert.h" | |||
60 | ||||
61 | #include "aout/aout64.h" | |||
62 | #include "aout/stab_gnu.h" /* We always use GNU stabs, not native, now */ | |||
63 | ||||
64 | ||||
65 | /* We put a pointer to this structure in the read_symtab_private field | |||
66 | of the psymtab. */ | |||
67 | ||||
68 | struct symloc | |||
69 | { | |||
70 | /* Offset within the file symbol table of first local symbol for this | |||
71 | file. */ | |||
72 | ||||
73 | int ldsymoff; | |||
74 | ||||
75 | /* Length (in bytes) of the section of the symbol table devoted to | |||
76 | this file's symbols (actually, the section bracketed may contain | |||
77 | more than just this file's symbols). If ldsymlen is 0, the only | |||
78 | reason for this thing's existence is the dependency list. Nothing | |||
79 | else will happen when it is read in. */ | |||
80 | ||||
81 | int ldsymlen; | |||
82 | ||||
83 | /* The size of each symbol in the symbol file (in external form). */ | |||
84 | ||||
85 | int symbol_size; | |||
86 | ||||
87 | /* Further information needed to locate the symbols if they are in | |||
88 | an ELF file. */ | |||
89 | ||||
90 | int symbol_offset; | |||
91 | int string_offset; | |||
92 | int file_string_offset; | |||
93 | }; | |||
94 | ||||
95 | #define LDSYMOFF(p)(((struct symloc *)((p)->read_symtab_private))->ldsymoff ) (((struct symloc *)((p)->read_symtab_private))->ldsymoff) | |||
96 | #define LDSYMLEN(p)(((struct symloc *)((p)->read_symtab_private))->ldsymlen ) (((struct symloc *)((p)->read_symtab_private))->ldsymlen) | |||
97 | #define SYMLOC(p)((struct symloc *)((p)->read_symtab_private)) ((struct symloc *)((p)->read_symtab_private)) | |||
98 | #define SYMBOL_SIZE(p)(((struct symloc *)((p)->read_symtab_private))->symbol_size ) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->symbol_size) | |||
99 | #define SYMBOL_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->symbol_offset ) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->symbol_offset) | |||
100 | #define STRING_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->string_offset ) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->string_offset) | |||
101 | #define FILE_STRING_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->file_string_offset ) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->file_string_offset) | |||
102 | ||||
103 | ||||
104 | /* Remember what we deduced to be the source language of this psymtab. */ | |||
105 | ||||
106 | static enum language psymtab_language = language_unknown; | |||
107 | ||||
108 | /* The BFD for this file -- implicit parameter to next_symbol_text. */ | |||
109 | ||||
110 | static bfd *symfile_bfd; | |||
111 | ||||
112 | /* The size of each symbol in the symbol file (in external form). | |||
113 | This is set by dbx_symfile_read when building psymtabs, and by | |||
114 | dbx_psymtab_to_symtab when building symtabs. */ | |||
115 | ||||
116 | static unsigned symbol_size; | |||
117 | ||||
118 | /* This is the offset of the symbol table in the executable file. */ | |||
119 | ||||
120 | static unsigned symbol_table_offset; | |||
121 | ||||
122 | /* This is the offset of the string table in the executable file. */ | |||
123 | ||||
124 | static unsigned string_table_offset; | |||
125 | ||||
126 | /* For elf+stab executables, the n_strx field is not a simple index | |||
127 | into the string table. Instead, each .o file has a base offset in | |||
128 | the string table, and the associated symbols contain offsets from | |||
129 | this base. The following two variables contain the base offset for | |||
130 | the current and next .o files. */ | |||
131 | ||||
132 | static unsigned int file_string_table_offset; | |||
133 | static unsigned int next_file_string_table_offset; | |||
134 | ||||
135 | /* .o and NLM files contain unrelocated addresses which are based at | |||
136 | 0. When non-zero, this flag disables some of the special cases for | |||
137 | Solaris elf+stab text addresses at location 0. */ | |||
138 | ||||
139 | static int symfile_relocatable = 0; | |||
140 | ||||
141 | /* If this is nonzero, N_LBRAC, N_RBRAC, and N_SLINE entries are | |||
142 | relative to the function start address. */ | |||
143 | ||||
144 | static int block_address_function_relative = 0; | |||
145 | ||||
146 | /* The lowest text address we have yet encountered. This is needed | |||
147 | because in an a.out file, there is no header field which tells us | |||
148 | what address the program is actually going to be loaded at, so we | |||
149 | need to make guesses based on the symbols (which *are* relocated to | |||
150 | reflect the address it will be loaded at). */ | |||
151 | ||||
152 | static CORE_ADDR lowest_text_address; | |||
153 | ||||
154 | /* Non-zero if there is any line number info in the objfile. Prevents | |||
155 | end_psymtab from discarding an otherwise empty psymtab. */ | |||
156 | ||||
157 | static int has_line_numbers; | |||
158 | ||||
159 | /* Complaints about the symbols we have encountered. */ | |||
160 | ||||
161 | static void | |||
162 | unknown_symtype_complaint (const char *arg1) | |||
163 | { | |||
164 | complaint (&symfile_complaints, "unknown symbol type %s", arg1); | |||
165 | } | |||
166 | ||||
167 | static void | |||
168 | lbrac_mismatch_complaint (int arg1) | |||
169 | { | |||
170 | complaint (&symfile_complaints, | |||
171 | "N_LBRAC/N_RBRAC symbol mismatch at symtab pos %d", arg1); | |||
172 | } | |||
173 | ||||
174 | static void | |||
175 | repeated_header_complaint (const char *arg1, int arg2) | |||
176 | { | |||
177 | complaint (&symfile_complaints, | |||
178 | "\"repeated\" header file %s not previously seen, at symtab pos %d", | |||
179 | arg1, arg2); | |||
180 | } | |||
181 | ||||
182 | /* find_text_range --- find start and end of loadable code sections | |||
183 | ||||
184 | The find_text_range function finds the shortest address range that | |||
185 | encloses all sections containing executable code, and stores it in | |||
186 | objfile's text_addr and text_size members. | |||
187 | ||||
188 | dbx_symfile_read will use this to finish off the partial symbol | |||
189 | table, in some cases. */ | |||
190 | ||||
191 | static void | |||
192 | find_text_range (bfd * sym_bfd, struct objfile *objfile) | |||
193 | { | |||
194 | asection *sec; | |||
195 | int found_any = 0; | |||
196 | CORE_ADDR start = 0; | |||
197 | CORE_ADDR end = 0; | |||
198 | ||||
199 | for (sec = sym_bfd->sections; sec; sec = sec->next) | |||
200 | if (bfd_get_section_flags (sym_bfd, sec)((sec)->flags + 0) & SEC_CODE0x020) | |||
201 | { | |||
202 | CORE_ADDR sec_start = bfd_section_vma (sym_bfd, sec)((sec)->vma); | |||
203 | CORE_ADDR sec_end = sec_start + bfd_section_size (sym_bfd, sec)((sec)->_raw_size); | |||
204 | ||||
205 | if (found_any) | |||
206 | { | |||
207 | if (sec_start < start) | |||
208 | start = sec_start; | |||
209 | if (sec_end > end) | |||
210 | end = sec_end; | |||
211 | } | |||
212 | else | |||
213 | { | |||
214 | start = sec_start; | |||
215 | end = sec_end; | |||
216 | } | |||
217 | ||||
218 | found_any = 1; | |||
219 | } | |||
220 | ||||
221 | if (!found_any) | |||
222 | error ("Can't find any code sections in symbol file"); | |||
223 | ||||
224 | DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = start; | |||
225 | DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = end - start; | |||
226 | } | |||
227 | ||||
228 | ||||
229 | ||||
230 | /* During initial symbol readin, we need to have a structure to keep | |||
231 | track of which psymtabs have which bincls in them. This structure | |||
232 | is used during readin to setup the list of dependencies within each | |||
233 | partial symbol table. */ | |||
234 | ||||
235 | struct header_file_location | |||
236 | { | |||
237 | char *name; /* Name of header file */ | |||
238 | int instance; /* See above */ | |||
239 | struct partial_symtab *pst; /* Partial symtab that has the | |||
240 | BINCL/EINCL defs for this file */ | |||
241 | }; | |||
242 | ||||
243 | /* The actual list and controling variables */ | |||
244 | static struct header_file_location *bincl_list, *next_bincl; | |||
245 | static int bincls_allocated; | |||
246 | ||||
247 | /* Local function prototypes */ | |||
248 | ||||
249 | extern void _initialize_dbxread (void); | |||
250 | ||||
251 | static void read_ofile_symtab (struct partial_symtab *); | |||
252 | ||||
253 | static void dbx_psymtab_to_symtab (struct partial_symtab *); | |||
254 | ||||
255 | static void dbx_psymtab_to_symtab_1 (struct partial_symtab *); | |||
256 | ||||
257 | static void read_dbx_dynamic_symtab (struct objfile *objfile); | |||
258 | ||||
259 | static void read_dbx_symtab (struct objfile *); | |||
260 | ||||
261 | static void free_bincl_list (struct objfile *); | |||
262 | ||||
263 | static struct partial_symtab *find_corresponding_bincl_psymtab (char *, int); | |||
264 | ||||
265 | static void add_bincl_to_list (struct partial_symtab *, char *, int); | |||
266 | ||||
267 | static void init_bincl_list (int, struct objfile *); | |||
268 | ||||
269 | static char *dbx_next_symbol_text (struct objfile *); | |||
270 | ||||
271 | static void fill_symbuf (bfd *); | |||
272 | ||||
273 | static void dbx_symfile_init (struct objfile *); | |||
274 | ||||
275 | static void dbx_new_init (struct objfile *); | |||
276 | ||||
277 | static void dbx_symfile_read (struct objfile *, int); | |||
278 | ||||
279 | static void dbx_symfile_finish (struct objfile *); | |||
280 | ||||
281 | static void record_minimal_symbol (char *, CORE_ADDR, int, struct objfile *); | |||
282 | ||||
283 | static void add_new_header_file (char *, int); | |||
284 | ||||
285 | static void add_old_header_file (char *, int); | |||
286 | ||||
287 | static void add_this_object_header_file (int); | |||
288 | ||||
289 | static struct partial_symtab *start_psymtab (struct objfile *, char *, | |||
290 | CORE_ADDR, int, | |||
291 | struct partial_symbol **, | |||
292 | struct partial_symbol **); | |||
293 | ||||
294 | /* Free up old header file tables */ | |||
295 | ||||
296 | void | |||
297 | free_header_files (void) | |||
298 | { | |||
299 | if (this_object_header_files) | |||
300 | { | |||
301 | xfree (this_object_header_files); | |||
302 | this_object_header_files = NULL((void*)0); | |||
303 | } | |||
304 | n_allocated_this_object_header_files = 0; | |||
305 | } | |||
306 | ||||
307 | /* Allocate new header file tables */ | |||
308 | ||||
309 | void | |||
310 | init_header_files (void) | |||
311 | { | |||
312 | n_allocated_this_object_header_files = 10; | |||
313 | this_object_header_files = (int *) xmalloc (10 * sizeof (int)); | |||
314 | } | |||
315 | ||||
316 | /* Add header file number I for this object file | |||
317 | at the next successive FILENUM. */ | |||
318 | ||||
319 | static void | |||
320 | add_this_object_header_file (int i) | |||
321 | { | |||
322 | if (n_this_object_header_files == n_allocated_this_object_header_files) | |||
323 | { | |||
324 | n_allocated_this_object_header_files *= 2; | |||
325 | this_object_header_files | |||
326 | = (int *) xrealloc ((char *) this_object_header_files, | |||
327 | n_allocated_this_object_header_files * sizeof (int)); | |||
328 | } | |||
329 | ||||
330 | this_object_header_files[n_this_object_header_files++] = i; | |||
331 | } | |||
332 | ||||
333 | /* Add to this file an "old" header file, one already seen in | |||
334 | a previous object file. NAME is the header file's name. | |||
335 | INSTANCE is its instance code, to select among multiple | |||
336 | symbol tables for the same header file. */ | |||
337 | ||||
338 | static void | |||
339 | add_old_header_file (char *name, int instance) | |||
340 | { | |||
341 | struct header_file *p = HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files); | |||
342 | int i; | |||
343 | ||||
344 | for (i = 0; i < N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files); i++) | |||
345 | if (strcmp (p[i].name, name) == 0 && instance == p[i].instance) | |||
346 | { | |||
347 | add_this_object_header_file (i); | |||
348 | return; | |||
349 | } | |||
350 | repeated_header_complaint (name, symnum); | |||
351 | } | |||
352 | ||||
353 | /* Add to this file a "new" header file: definitions for its types follow. | |||
354 | NAME is the header file's name. | |||
355 | Most often this happens only once for each distinct header file, | |||
356 | but not necessarily. If it happens more than once, INSTANCE has | |||
357 | a different value each time, and references to the header file | |||
358 | use INSTANCE values to select among them. | |||
359 | ||||
360 | dbx output contains "begin" and "end" markers for each new header file, | |||
361 | but at this level we just need to know which files there have been; | |||
362 | so we record the file when its "begin" is seen and ignore the "end". */ | |||
363 | ||||
364 | static void | |||
365 | add_new_header_file (char *name, int instance) | |||
366 | { | |||
367 | int i; | |||
368 | struct header_file *hfile; | |||
369 | ||||
370 | /* Make sure there is room for one more header file. */ | |||
371 | ||||
372 | i = N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files ); | |||
373 | ||||
374 | if (N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files) == i) | |||
375 | { | |||
376 | if (i == 0) | |||
377 | { | |||
378 | N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files ) = 10; | |||
379 | HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) = (struct header_file *) | |||
380 | xmalloc (10 * sizeof (struct header_file)); | |||
381 | } | |||
382 | else | |||
383 | { | |||
384 | i *= 2; | |||
385 | N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files ) = i; | |||
386 | HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) = (struct header_file *) | |||
387 | xrealloc ((char *) HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files), | |||
388 | (i * sizeof (struct header_file))); | |||
389 | } | |||
390 | } | |||
391 | ||||
392 | /* Create an entry for this header file. */ | |||
393 | ||||
394 | i = N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files)++; | |||
395 | hfile = HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) + i; | |||
396 | hfile->name = savestring (name, strlen (name)); | |||
397 | hfile->instance = instance; | |||
398 | hfile->length = 10; | |||
399 | hfile->vector | |||
400 | = (struct type **) xmalloc (10 * sizeof (struct type *)); | |||
401 | memset (hfile->vector, 0, 10 * sizeof (struct type *)); | |||
402 | ||||
403 | add_this_object_header_file (i); | |||
404 | } | |||
405 | ||||
406 | #if 0 | |||
407 | static struct type ** | |||
408 | explicit_lookup_type (int real_filenum, int index) | |||
409 | { | |||
410 | struct header_file *f = &HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files)[real_filenum]; | |||
411 | ||||
412 | if (index >= f->length) | |||
413 | { | |||
414 | f->length *= 2; | |||
415 | f->vector = (struct type **) | |||
416 | xrealloc (f->vector, f->length * sizeof (struct type *)); | |||
417 | memset (&f->vector[f->length / 2], | |||
418 | '\0', f->length * sizeof (struct type *) / 2); | |||
419 | } | |||
420 | return &f->vector[index]; | |||
421 | } | |||
422 | #endif | |||
423 | ||||
424 | static void | |||
425 | record_minimal_symbol (char *name, CORE_ADDR address, int type, | |||
426 | struct objfile *objfile) | |||
427 | { | |||
428 | enum minimal_symbol_type ms_type; | |||
429 | int section; | |||
430 | asection *bfd_section; | |||
431 | ||||
432 | switch (type) | |||
433 | { | |||
434 | case N_TEXT4 | N_EXT1: | |||
435 | ms_type = mst_text; | |||
436 | section = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 436, "sect_index_text not initialized"), -1) : objfile-> sect_index_text); | |||
437 | bfd_section = DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section); | |||
438 | break; | |||
439 | case N_DATA6 | N_EXT1: | |||
440 | ms_type = mst_data; | |||
441 | section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 441, "sect_index_data not initialized"), -1) : objfile-> sect_index_data); | |||
442 | bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section); | |||
443 | break; | |||
444 | case N_BSS8 | N_EXT1: | |||
445 | ms_type = mst_bss; | |||
446 | section = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss; | |||
447 | bfd_section = DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section); | |||
448 | break; | |||
449 | case N_ABS2 | N_EXT1: | |||
450 | ms_type = mst_abs; | |||
451 | section = -1; | |||
452 | bfd_section = NULL((void*)0); | |||
453 | break; | |||
454 | #ifdef N_SETV0x1C | |||
455 | case N_SETV0x1C | N_EXT1: | |||
456 | ms_type = mst_data; | |||
457 | section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 457, "sect_index_data not initialized"), -1) : objfile-> sect_index_data); | |||
458 | bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section); | |||
459 | break; | |||
460 | case N_SETV0x1C: | |||
461 | /* I don't think this type actually exists; since a N_SETV is the result | |||
462 | of going over many .o files, it doesn't make sense to have one | |||
463 | file local. */ | |||
464 | ms_type = mst_file_data; | |||
465 | section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 465, "sect_index_data not initialized"), -1) : objfile-> sect_index_data); | |||
466 | bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section); | |||
467 | break; | |||
468 | #endif | |||
469 | case N_TEXT4: | |||
470 | case N_NBTEXT: | |||
471 | case N_FN0x1f: | |||
472 | case N_FN_SEQ0x0C: | |||
473 | ms_type = mst_file_text; | |||
474 | section = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 474, "sect_index_text not initialized"), -1) : objfile-> sect_index_text); | |||
475 | bfd_section = DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section); | |||
476 | break; | |||
477 | case N_DATA6: | |||
478 | ms_type = mst_file_data; | |||
479 | ||||
480 | /* Check for __DYNAMIC, which is used by Sun shared libraries. | |||
481 | Record it as global even if it's local, not global, so | |||
482 | lookup_minimal_symbol can find it. We don't check symbol_leading_char | |||
483 | because for SunOS4 it always is '_'. */ | |||
484 | if (name[8] == 'C' && DEPRECATED_STREQ ("__DYNAMIC", name)(strcmp (("__DYNAMIC"), (name)) == 0)) | |||
485 | ms_type = mst_data; | |||
486 | ||||
487 | /* Same with virtual function tables, both global and static. */ | |||
488 | { | |||
489 | char *tempstring = name; | |||
490 | if (tempstring[0] == bfd_get_symbol_leading_char (objfile->obfd)((objfile->obfd)->xvec->symbol_leading_char)) | |||
491 | ++tempstring; | |||
492 | if (is_vtable_name (tempstring)) | |||
493 | ms_type = mst_data; | |||
494 | } | |||
495 | section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 495, "sect_index_data not initialized"), -1) : objfile-> sect_index_data); | |||
496 | bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section); | |||
497 | break; | |||
498 | case N_BSS8: | |||
499 | ms_type = mst_file_bss; | |||
500 | section = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss; | |||
501 | bfd_section = DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section); | |||
502 | break; | |||
503 | default: | |||
504 | ms_type = mst_unknown; | |||
505 | section = -1; | |||
506 | bfd_section = NULL((void*)0); | |||
507 | break; | |||
508 | } | |||
509 | ||||
510 | if ((ms_type == mst_file_text || ms_type == mst_text) | |||
511 | && address < lowest_text_address) | |||
512 | lowest_text_address = address; | |||
513 | ||||
514 | prim_record_minimal_symbol_and_info | |||
515 | (name, address, ms_type, NULL((void*)0), section, bfd_section, objfile); | |||
516 | } | |||
517 | ||||
518 | /* Scan and build partial symbols for a symbol file. | |||
519 | We have been initialized by a call to dbx_symfile_init, which | |||
520 | put all the relevant info into a "struct dbx_symfile_info", | |||
521 | hung off the objfile structure. | |||
522 | ||||
523 | MAINLINE is true if we are reading the main symbol | |||
524 | table (as opposed to a shared lib or dynamically loaded file). */ | |||
525 | ||||
526 | static void | |||
527 | dbx_symfile_read (struct objfile *objfile, int mainline) | |||
528 | { | |||
529 | bfd *sym_bfd; | |||
530 | int val; | |||
531 | struct cleanup *back_to; | |||
532 | ||||
533 | sym_bfd = objfile->obfd; | |||
534 | ||||
535 | /* .o and .nlm files are relocatables with text, data and bss segs based at | |||
536 | 0. This flag disables special (Solaris stabs-in-elf only) fixups for | |||
537 | symbols with a value of 0. */ | |||
538 | ||||
539 | symfile_relocatable = bfd_get_file_flags (sym_bfd)((sym_bfd)->flags) & HAS_RELOC0x01; | |||
540 | ||||
541 | /* This is true for Solaris (and all other systems which put stabs | |||
542 | in sections, hopefully, since it would be silly to do things | |||
543 | differently from Solaris), and false for SunOS4 and other a.out | |||
544 | file formats. */ | |||
545 | block_address_function_relative = | |||
546 | ((0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "elf", 3)) | |||
547 | || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "som", 3)) | |||
548 | || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "coff", 4)) | |||
549 | || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "pe", 2)) | |||
550 | || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "epoc-pe", 7)) | |||
551 | || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "nlm", 3))); | |||
552 | ||||
553 | val = bfd_seek (sym_bfd, DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset), SEEK_SET0); | |||
554 | if (val < 0) | |||
555 | perror_with_name (objfile->name); | |||
556 | ||||
557 | /* If we are reinitializing, or if we have never loaded syms yet, init */ | |||
558 | if (mainline | |||
559 | || (objfile->global_psymbols.size == 0 | |||
560 | && objfile->static_psymbols.size == 0)) | |||
561 | init_psymbol_list (objfile, DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount)); | |||
562 | ||||
563 | symbol_size = DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size); | |||
564 | symbol_table_offset = DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset); | |||
565 | ||||
566 | free_pending_blocks (); | |||
567 | back_to = make_cleanup (really_free_pendings, 0); | |||
568 | ||||
569 | init_minimal_symbol_collection (); | |||
570 | make_cleanup_discard_minimal_symbols (); | |||
571 | ||||
572 | /* Read stabs data from executable file and define symbols. */ | |||
573 | ||||
574 | read_dbx_symtab (objfile); | |||
575 | ||||
576 | /* Add the dynamic symbols. */ | |||
577 | ||||
578 | read_dbx_dynamic_symtab (objfile); | |||
579 | ||||
580 | /* Install any minimal symbols that have been collected as the current | |||
581 | minimal symbols for this objfile. */ | |||
582 | ||||
583 | install_minimal_symbols (objfile); | |||
584 | ||||
585 | do_cleanups (back_to); | |||
586 | } | |||
587 | ||||
588 | /* Initialize anything that needs initializing when a completely new | |||
589 | symbol file is specified (not just adding some symbols from another | |||
590 | file, e.g. a shared library). */ | |||
591 | ||||
592 | static void | |||
593 | dbx_new_init (struct objfile *ignore) | |||
594 | { | |||
595 | stabsread_new_init (); | |||
596 | buildsym_new_init (); | |||
597 | init_header_files (); | |||
598 | } | |||
599 | ||||
600 | ||||
601 | /* dbx_symfile_init () | |||
602 | is the dbx-specific initialization routine for reading symbols. | |||
603 | It is passed a struct objfile which contains, among other things, | |||
604 | the BFD for the file whose symbols are being read, and a slot for a pointer | |||
605 | to "private data" which we fill with goodies. | |||
606 | ||||
607 | We read the string table into malloc'd space and stash a pointer to it. | |||
608 | ||||
609 | Since BFD doesn't know how to read debug symbols in a format-independent | |||
610 | way (and may never do so...), we have to do it ourselves. We will never | |||
611 | be called unless this is an a.out (or very similar) file. | |||
612 | FIXME, there should be a cleaner peephole into the BFD environment here. */ | |||
613 | ||||
614 | #define DBX_STRINGTAB_SIZE_SIZEsizeof(long) sizeof(long) /* FIXME */ | |||
615 | ||||
616 | static void | |||
617 | dbx_symfile_init (struct objfile *objfile) | |||
618 | { | |||
619 | int val; | |||
620 | bfd *sym_bfd = objfile->obfd; | |||
621 | char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename); | |||
622 | asection *text_sect; | |||
623 | unsigned char size_temp[DBX_STRINGTAB_SIZE_SIZEsizeof(long)]; | |||
624 | ||||
625 | /* Allocate struct to keep track of the symfile */ | |||
626 | objfile->sym_stab_info = (struct dbx_symfile_info *) | |||
627 | xmalloc (sizeof (struct dbx_symfile_info)); | |||
628 | memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info)); | |||
629 | ||||
630 | DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section) = bfd_get_section_by_name (sym_bfd, ".text"); | |||
631 | DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section) = bfd_get_section_by_name (sym_bfd, ".data"); | |||
632 | DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section) = bfd_get_section_by_name (sym_bfd, ".bss"); | |||
633 | ||||
634 | /* FIXME POKING INSIDE BFD DATA STRUCTURES */ | |||
635 | #define STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). str_filepos)) (sym_bfd->origin + obj_str_filepos (sym_bfd)(((sym_bfd)->tdata.aout_data->a).str_filepos)) | |||
636 | #define SYMBOL_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). sym_filepos)) (sym_bfd->origin + obj_sym_filepos (sym_bfd)(((sym_bfd)->tdata.aout_data->a).sym_filepos)) | |||
637 | ||||
638 | /* FIXME POKING INSIDE BFD DATA STRUCTURES */ | |||
639 | ||||
640 | DBX_SYMFILE_INFO (objfile)((objfile)->sym_stab_info)->stab_section_info = NULL((void*)0); | |||
641 | ||||
642 | text_sect = bfd_get_section_by_name (sym_bfd, ".text"); | |||
643 | if (!text_sect) | |||
644 | error ("Can't find .text section in symbol file"); | |||
645 | DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = bfd_section_vma (sym_bfd, text_sect)((text_sect)->vma); | |||
646 | DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = bfd_section_size (sym_bfd, text_sect)((text_sect)->_raw_size); | |||
647 | ||||
648 | DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = obj_symbol_entry_size (sym_bfd)(((sym_bfd)->tdata.aout_data->a).symbol_entry_size); | |||
649 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = bfd_get_symcount (sym_bfd)((sym_bfd)->symcount); | |||
650 | DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = SYMBOL_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). sym_filepos)); | |||
651 | ||||
652 | /* Read the string table and stash it away in the objfile_obstack. | |||
653 | When we blow away the objfile the string table goes away as well. | |||
654 | Note that gdb used to use the results of attempting to malloc the | |||
655 | string table, based on the size it read, as a form of sanity check | |||
656 | for botched byte swapping, on the theory that a byte swapped string | |||
657 | table size would be so totally bogus that the malloc would fail. Now | |||
658 | that we put in on the objfile_obstack, we can't do this since gdb gets | |||
659 | a fatal error (out of virtual memory) if the size is bogus. We can | |||
660 | however at least check to see if the size is less than the size of | |||
661 | the size field itself, or larger than the size of the entire file. | |||
662 | Note that all valid string tables have a size greater than zero, since | |||
663 | the bytes used to hold the size are included in the count. */ | |||
664 | ||||
665 | if (STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). str_filepos)) == 0) | |||
666 | { | |||
667 | /* It appears that with the existing bfd code, STRING_TABLE_OFFSET | |||
668 | will never be zero, even when there is no string table. This | |||
669 | would appear to be a bug in bfd. */ | |||
670 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = 0; | |||
671 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = NULL((void*)0); | |||
672 | } | |||
673 | else | |||
674 | { | |||
675 | val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). str_filepos)), SEEK_SET0); | |||
676 | if (val < 0) | |||
677 | perror_with_name (name); | |||
678 | ||||
679 | memset (size_temp, 0, sizeof (size_temp)); | |||
680 | val = bfd_bread (size_temp, sizeof (size_temp), sym_bfd); | |||
681 | if (val < 0) | |||
682 | { | |||
683 | perror_with_name (name); | |||
684 | } | |||
685 | else if (val == 0) | |||
686 | { | |||
687 | /* With the existing bfd code, STRING_TABLE_OFFSET will be set to | |||
688 | EOF if there is no string table, and attempting to read the size | |||
689 | from EOF will read zero bytes. */ | |||
690 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = 0; | |||
691 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = NULL((void*)0); | |||
692 | } | |||
693 | else | |||
694 | { | |||
695 | /* Read some data that would appear to be the string table size. | |||
696 | If there really is a string table, then it is probably the right | |||
697 | size. Byteswap if necessary and validate the size. Note that | |||
698 | the minimum is DBX_STRINGTAB_SIZE_SIZE. If we just read some | |||
699 | random data that happened to be at STRING_TABLE_OFFSET, because | |||
700 | bfd can't tell us there is no string table, the sanity checks may | |||
701 | or may not catch this. */ | |||
702 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = bfd_h_get_32 (sym_bfd, size_temp)((*((sym_bfd)->xvec->bfd_h_getx32)) (size_temp)); | |||
703 | ||||
704 | if (DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) < sizeof (size_temp) | |||
705 | || DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) > bfd_get_size (sym_bfd)) | |||
706 | error ("ridiculous string table size (%d bytes).", | |||
707 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size)); | |||
708 | ||||
709 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = | |||
710 | (char *) obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( ((((objfile)->sym_stab_info)->stringtab_size))); if (__o ->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }) ; __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask ) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1-> next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit ; __o1->object_base = __o1->next_free; value; }); }) | |||
711 | DBX_STRINGTAB_SIZE (objfile))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( ((((objfile)->sym_stab_info)->stringtab_size))); if (__o ->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }) ; __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask ) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1-> next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit ; __o1->object_base = __o1->next_free; value; }); }); | |||
712 | OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile))(objfile -> stats.sz_strtab += (((objfile)->sym_stab_info )->stringtab_size)); | |||
713 | ||||
714 | /* Now read in the string table in one big gulp. */ | |||
715 | ||||
716 | val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a). str_filepos)), SEEK_SET0); | |||
717 | if (val < 0) | |||
718 | perror_with_name (name); | |||
719 | val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), | |||
720 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size), | |||
721 | sym_bfd); | |||
722 | if (val != DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size)) | |||
723 | perror_with_name (name); | |||
724 | } | |||
725 | } | |||
726 | } | |||
727 | ||||
728 | /* Perform any local cleanups required when we are done with a particular | |||
729 | objfile. I.E, we are in the process of discarding all symbol information | |||
730 | for an objfile, freeing up all memory held for it, and unlinking the | |||
731 | objfile struct from the global list of known objfiles. */ | |||
732 | ||||
733 | static void | |||
734 | dbx_symfile_finish (struct objfile *objfile) | |||
735 | { | |||
736 | if (objfile->sym_stab_info != NULL((void*)0)) | |||
737 | { | |||
738 | if (HEADER_FILES (objfile)(((objfile)->sym_stab_info)->header_files) != NULL((void*)0)) | |||
739 | { | |||
740 | int i = N_HEADER_FILES (objfile)(((objfile)->sym_stab_info)->n_header_files); | |||
741 | struct header_file *hfiles = HEADER_FILES (objfile)(((objfile)->sym_stab_info)->header_files); | |||
742 | ||||
743 | while (--i >= 0) | |||
744 | { | |||
745 | xfree (hfiles[i].name); | |||
746 | xfree (hfiles[i].vector); | |||
747 | } | |||
748 | xfree (hfiles); | |||
749 | } | |||
750 | xfree (objfile->sym_stab_info); | |||
751 | } | |||
752 | free_header_files (); | |||
753 | } | |||
754 | ||||
755 | ||||
756 | /* Buffer for reading the symbol table entries. */ | |||
757 | static struct external_nlist symbuf[4096]; | |||
758 | static int symbuf_idx; | |||
759 | static int symbuf_end; | |||
760 | ||||
761 | /* Name of last function encountered. Used in Solaris to approximate | |||
762 | object file boundaries. */ | |||
763 | static char *last_function_name; | |||
764 | ||||
765 | /* The address in memory of the string table of the object file we are | |||
766 | reading (which might not be the "main" object file, but might be a | |||
767 | shared library or some other dynamically loaded thing). This is | |||
768 | set by read_dbx_symtab when building psymtabs, and by | |||
769 | read_ofile_symtab when building symtabs, and is used only by | |||
770 | next_symbol_text. FIXME: If that is true, we don't need it when | |||
771 | building psymtabs, right? */ | |||
772 | static char *stringtab_global; | |||
773 | ||||
774 | /* These variables are used to control fill_symbuf when the stabs | |||
775 | symbols are not contiguous (as may be the case when a COFF file is | |||
776 | linked using --split-by-reloc). */ | |||
777 | static struct stab_section_list *symbuf_sections; | |||
778 | static unsigned int symbuf_left; | |||
779 | static unsigned int symbuf_read; | |||
780 | ||||
781 | /* This variable stores a global stabs buffer, if we read stabs into | |||
782 | memory in one chunk in order to process relocations. */ | |||
783 | static bfd_byte *stabs_data; | |||
784 | ||||
785 | /* Refill the symbol table input buffer | |||
786 | and set the variables that control fetching entries from it. | |||
787 | Reports an error if no data available. | |||
788 | This function can read past the end of the symbol table | |||
789 | (into the string table) but this does no harm. */ | |||
790 | ||||
791 | static void | |||
792 | fill_symbuf (bfd *sym_bfd) | |||
793 | { | |||
794 | unsigned int count; | |||
795 | int nbytes; | |||
796 | ||||
797 | if (stabs_data) | |||
798 | { | |||
799 | nbytes = sizeof (symbuf); | |||
800 | if (nbytes > symbuf_left) | |||
801 | nbytes = symbuf_left; | |||
802 | memcpy (symbuf, stabs_data + symbuf_read, nbytes); | |||
803 | } | |||
804 | else if (symbuf_sections == NULL((void*)0)) | |||
805 | { | |||
806 | count = sizeof (symbuf); | |||
807 | nbytes = bfd_bread (symbuf, count, sym_bfd); | |||
808 | } | |||
809 | else | |||
810 | { | |||
811 | if (symbuf_left <= 0) | |||
812 | { | |||
813 | file_ptr filepos = symbuf_sections->section->filepos; | |||
814 | if (bfd_seek (sym_bfd, filepos, SEEK_SET0) != 0) | |||
815 | perror_with_name (bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename)); | |||
816 | symbuf_left = bfd_section_size (sym_bfd, symbuf_sections->section)((symbuf_sections->section)->_raw_size); | |||
817 | symbol_table_offset = filepos - symbuf_read; | |||
818 | symbuf_sections = symbuf_sections->next; | |||
819 | } | |||
820 | ||||
821 | count = symbuf_left; | |||
822 | if (count > sizeof (symbuf)) | |||
823 | count = sizeof (symbuf); | |||
824 | nbytes = bfd_bread (symbuf, count, sym_bfd); | |||
825 | } | |||
826 | ||||
827 | if (nbytes < 0) | |||
828 | perror_with_name (bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename)); | |||
829 | else if (nbytes == 0) | |||
830 | error ("Premature end of file reading symbol table"); | |||
831 | symbuf_end = nbytes / symbol_size; | |||
832 | symbuf_idx = 0; | |||
833 | symbuf_left -= nbytes; | |||
834 | symbuf_read += nbytes; | |||
835 | } | |||
836 | ||||
837 | static void | |||
838 | stabs_seek (int sym_offset) | |||
839 | { | |||
840 | if (stabs_data) | |||
841 | { | |||
842 | symbuf_read += sym_offset; | |||
843 | symbuf_left -= sym_offset; | |||
844 | } | |||
845 | else | |||
846 | bfd_seek (symfile_bfd, sym_offset, SEEK_CUR1); | |||
847 | } | |||
848 | ||||
849 | #define INTERNALIZE_SYMBOL(intern, extern, abfd){ (intern).n_type = (*(unsigned char *) ((extern)->e_type) & 0xff); (intern).n_strx = ((*((abfd)->xvec->bfd_h_getx32 )) ((extern)->e_strx)); (intern).n_desc = ((*((abfd)->xvec ->bfd_h_getx16)) ((extern)->e_desc)); if (bfd_get_sign_extend_vma (abfd)) (intern).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32 )) ((extern)->e_value)); else (intern).n_value = ((*((abfd )->xvec->bfd_h_getx32)) ((extern)->e_value)); } \ | |||
850 | { \ | |||
851 | (intern).n_type = bfd_h_get_8 (abfd, (extern)->e_type)(*(unsigned char *) ((extern)->e_type) & 0xff); \ | |||
852 | (intern).n_strx = bfd_h_get_32 (abfd, (extern)->e_strx)((*((abfd)->xvec->bfd_h_getx32)) ((extern)->e_strx)); \ | |||
853 | (intern).n_desc = bfd_h_get_16 (abfd, (extern)->e_desc)((*((abfd)->xvec->bfd_h_getx16)) ((extern)->e_desc)); \ | |||
854 | if (bfd_get_sign_extend_vma (abfd)) \ | |||
855 | (intern).n_value = bfd_h_get_signed_32 (abfd, (extern)->e_value)((*((abfd)->xvec->bfd_h_getx_signed_32)) ((extern)-> e_value)); \ | |||
856 | else \ | |||
857 | (intern).n_value = bfd_h_get_32 (abfd, (extern)->e_value)((*((abfd)->xvec->bfd_h_getx32)) ((extern)->e_value) ); \ | |||
858 | } | |||
859 | ||||
860 | /* Invariant: The symbol pointed to by symbuf_idx is the first one | |||
861 | that hasn't been swapped. Swap the symbol at the same time | |||
862 | that symbuf_idx is incremented. */ | |||
863 | ||||
864 | /* dbx allows the text of a symbol name to be continued into the | |||
865 | next symbol name! When such a continuation is encountered | |||
866 | (a \ at the end of the text of a name) | |||
867 | call this function to get the continuation. */ | |||
868 | ||||
869 | static char * | |||
870 | dbx_next_symbol_text (struct objfile *objfile) | |||
871 | { | |||
872 | struct internal_nlist nlist; | |||
873 | ||||
874 | if (symbuf_idx == symbuf_end) | |||
875 | fill_symbuf (symfile_bfd); | |||
876 | ||||
877 | symnum++; | |||
878 | INTERNALIZE_SYMBOL (nlist, &symbuf[symbuf_idx], symfile_bfd){ (nlist).n_type = (*(unsigned char *) ((&symbuf[symbuf_idx ])->e_type) & 0xff); (nlist).n_strx = ((*((symfile_bfd )->xvec->bfd_h_getx32)) ((&symbuf[symbuf_idx])-> e_strx)); (nlist).n_desc = ((*((symfile_bfd)->xvec->bfd_h_getx16 )) ((&symbuf[symbuf_idx])->e_desc)); if (bfd_get_sign_extend_vma (symfile_bfd)) (nlist).n_value = ((*((symfile_bfd)->xvec-> bfd_h_getx_signed_32)) ((&symbuf[symbuf_idx])->e_value )); else (nlist).n_value = ((*((symfile_bfd)->xvec->bfd_h_getx32 )) ((&symbuf[symbuf_idx])->e_value)); }; | |||
879 | OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++); | |||
880 | ||||
881 | symbuf_idx++; | |||
882 | ||||
883 | return nlist.n_strx + stringtab_global + file_string_table_offset; | |||
884 | } | |||
885 | ||||
886 | /* Initialize the list of bincls to contain none and have some | |||
887 | allocated. */ | |||
888 | ||||
889 | static void | |||
890 | init_bincl_list (int number, struct objfile *objfile) | |||
891 | { | |||
892 | bincls_allocated = number; | |||
893 | next_bincl = bincl_list = (struct header_file_location *) | |||
894 | xmalloc (bincls_allocated * sizeof (struct header_file_location)); | |||
895 | } | |||
896 | ||||
897 | /* Add a bincl to the list. */ | |||
898 | ||||
899 | static void | |||
900 | add_bincl_to_list (struct partial_symtab *pst, char *name, int instance) | |||
901 | { | |||
902 | if (next_bincl >= bincl_list + bincls_allocated) | |||
903 | { | |||
904 | int offset = next_bincl - bincl_list; | |||
905 | bincls_allocated *= 2; | |||
906 | bincl_list = (struct header_file_location *) | |||
907 | xrealloc ((char *) bincl_list, | |||
908 | bincls_allocated * sizeof (struct header_file_location)); | |||
909 | next_bincl = bincl_list + offset; | |||
910 | } | |||
911 | next_bincl->pst = pst; | |||
912 | next_bincl->instance = instance; | |||
913 | next_bincl++->name = name; | |||
914 | } | |||
915 | ||||
916 | /* Given a name, value pair, find the corresponding | |||
917 | bincl in the list. Return the partial symtab associated | |||
918 | with that header_file_location. */ | |||
919 | ||||
920 | static struct partial_symtab * | |||
921 | find_corresponding_bincl_psymtab (char *name, int instance) | |||
922 | { | |||
923 | struct header_file_location *bincl; | |||
924 | ||||
925 | for (bincl = bincl_list; bincl < next_bincl; bincl++) | |||
926 | if (bincl->instance == instance | |||
927 | && strcmp (name, bincl->name) == 0) | |||
928 | return bincl->pst; | |||
929 | ||||
930 | repeated_header_complaint (name, symnum); | |||
931 | return (struct partial_symtab *) 0; | |||
932 | } | |||
933 | ||||
934 | /* Free the storage allocated for the bincl list. */ | |||
935 | ||||
936 | static void | |||
937 | free_bincl_list (struct objfile *objfile) | |||
938 | { | |||
939 | xfree (bincl_list); | |||
940 | bincls_allocated = 0; | |||
941 | } | |||
942 | ||||
943 | static void | |||
944 | do_free_bincl_list_cleanup (void *objfile) | |||
945 | { | |||
946 | free_bincl_list (objfile); | |||
947 | } | |||
948 | ||||
949 | static struct cleanup * | |||
950 | make_cleanup_free_bincl_list (struct objfile *objfile) | |||
951 | { | |||
952 | return make_cleanup (do_free_bincl_list_cleanup, objfile); | |||
953 | } | |||
954 | ||||
955 | /* Set namestring based on nlist. If the string table index is invalid, | |||
956 | give a fake name, and print a single error message per symbol file read, | |||
957 | rather than abort the symbol reading or flood the user with messages. */ | |||
958 | ||||
959 | static char * | |||
960 | set_namestring (struct objfile *objfile, struct internal_nlist nlist) | |||
961 | { | |||
962 | char *namestring; | |||
963 | ||||
964 | if (((unsigned) nlist.n_strx + file_string_table_offset) >= | |||
965 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size)) | |||
966 | { | |||
967 | complaint (&symfile_complaints, "bad string table offset in symbol %d", | |||
968 | symnum); | |||
969 | namestring = "<bad string table offset>"; | |||
970 | } | |||
971 | else | |||
972 | namestring = nlist.n_strx + file_string_table_offset + | |||
973 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab); | |||
974 | return namestring; | |||
975 | } | |||
976 | ||||
977 | /* Scan a SunOs dynamic symbol table for symbols of interest and | |||
978 | add them to the minimal symbol table. */ | |||
979 | ||||
980 | static void | |||
981 | read_dbx_dynamic_symtab (struct objfile *objfile) | |||
982 | { | |||
983 | bfd *abfd = objfile->obfd; | |||
984 | struct cleanup *back_to; | |||
985 | int counter; | |||
986 | long dynsym_size; | |||
987 | long dynsym_count; | |||
988 | asymbol **dynsyms; | |||
989 | asymbol **symptr; | |||
990 | arelent **relptr; | |||
991 | long dynrel_size; | |||
992 | long dynrel_count; | |||
993 | arelent **dynrels; | |||
994 | CORE_ADDR sym_value; | |||
995 | char *name; | |||
996 | ||||
997 | /* Check that the symbol file has dynamic symbols that we know about. | |||
998 | bfd_arch_unknown can happen if we are reading a sun3 symbol file | |||
999 | on a sun4 host (and vice versa) and bfd is not configured | |||
1000 | --with-target=all. This would trigger an assertion in bfd/sunos.c, | |||
1001 | so we ignore the dynamic symbols in this case. */ | |||
1002 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) != bfd_target_aout_flavour | |||
1003 | || (bfd_get_file_flags (abfd)((abfd)->flags) & DYNAMIC0x40) == 0 | |||
1004 | || bfd_get_arch (abfd) == bfd_arch_unknown) | |||
1005 | return; | |||
1006 | ||||
1007 | dynsym_size = bfd_get_dynamic_symtab_upper_bound (abfd)((*((abfd)->xvec->_bfd_get_dynamic_symtab_upper_bound)) (abfd)); | |||
1008 | if (dynsym_size < 0) | |||
1009 | return; | |||
1010 | ||||
1011 | dynsyms = (asymbol **) xmalloc (dynsym_size); | |||
1012 | back_to = make_cleanup (xfree, dynsyms); | |||
1013 | ||||
1014 | dynsym_count = bfd_canonicalize_dynamic_symtab (abfd, dynsyms)((*((abfd)->xvec->_bfd_canonicalize_dynamic_symtab)) (abfd , dynsyms)); | |||
1015 | if (dynsym_count < 0) | |||
1016 | { | |||
1017 | do_cleanups (back_to); | |||
1018 | return; | |||
1019 | } | |||
1020 | ||||
1021 | /* Enter dynamic symbols into the minimal symbol table | |||
1022 | if this is a stripped executable. */ | |||
1023 | if (bfd_get_symcount (abfd)((abfd)->symcount) <= 0) | |||
1024 | { | |||
1025 | symptr = dynsyms; | |||
1026 | for (counter = 0; counter < dynsym_count; counter++, symptr++) | |||
1027 | { | |||
1028 | asymbol *sym = *symptr; | |||
1029 | asection *sec; | |||
1030 | int type; | |||
1031 | ||||
1032 | sec = bfd_get_section (sym)((sym)->section); | |||
1033 | ||||
1034 | /* BFD symbols are section relative. */ | |||
1035 | sym_value = sym->value + sec->vma; | |||
1036 | ||||
1037 | if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_CODE0x020) | |||
1038 | { | |||
1039 | sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1039, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1039, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1039, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1040 | type = N_TEXT4; | |||
1041 | } | |||
1042 | else if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_DATA0x040) | |||
1043 | { | |||
1044 | sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1044, "sect_index_data not initialized"), -1) : objfile-> sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1044, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_data == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1044, "sect_index_data not initialized"), -1) : objfile-> sect_index_data)]); | |||
1045 | type = N_DATA6; | |||
1046 | } | |||
1047 | else if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_ALLOC0x001) | |||
1048 | { | |||
1049 | sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1049, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[(objfile)->sect_index_bss]); | |||
1050 | type = N_BSS8; | |||
1051 | } | |||
1052 | else | |||
1053 | continue; | |||
1054 | ||||
1055 | if (sym->flags & BSF_GLOBAL0x02) | |||
1056 | type |= N_EXT1; | |||
1057 | ||||
1058 | record_minimal_symbol ((char *) bfd_asymbol_name (sym)((sym)->name), sym_value, | |||
1059 | type, objfile); | |||
1060 | } | |||
1061 | } | |||
1062 | ||||
1063 | /* Symbols from shared libraries have a dynamic relocation entry | |||
1064 | that points to the associated slot in the procedure linkage table. | |||
1065 | We make a mininal symbol table entry with type mst_solib_trampoline | |||
1066 | at the address in the procedure linkage table. */ | |||
1067 | dynrel_size = bfd_get_dynamic_reloc_upper_bound (abfd)((*((abfd)->xvec->_bfd_get_dynamic_reloc_upper_bound)) ( abfd)); | |||
1068 | if (dynrel_size < 0) | |||
1069 | { | |||
1070 | do_cleanups (back_to); | |||
1071 | return; | |||
1072 | } | |||
1073 | ||||
1074 | dynrels = (arelent **) xmalloc (dynrel_size); | |||
1075 | make_cleanup (xfree, dynrels); | |||
1076 | ||||
1077 | dynrel_count = bfd_canonicalize_dynamic_reloc (abfd, dynrels, dynsyms)((*((abfd)->xvec->_bfd_canonicalize_dynamic_reloc)) (abfd , dynrels, dynsyms)); | |||
1078 | if (dynrel_count < 0) | |||
1079 | { | |||
1080 | do_cleanups (back_to); | |||
1081 | return; | |||
1082 | } | |||
1083 | ||||
1084 | for (counter = 0, relptr = dynrels; | |||
1085 | counter < dynrel_count; | |||
1086 | counter++, relptr++) | |||
1087 | { | |||
1088 | arelent *rel = *relptr; | |||
1089 | CORE_ADDR address = | |||
1090 | rel->address + ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1090, "sect_index_data not initialized"), -1) : objfile-> sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1090, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_data == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1090, "sect_index_data not initialized"), -1) : objfile-> sect_index_data)]); | |||
1091 | ||||
1092 | switch (bfd_get_arch (abfd)) | |||
1093 | { | |||
1094 | case bfd_arch_sparc: | |||
1095 | if (rel->howto->type != RELOC_JMP_SLOT) | |||
1096 | continue; | |||
1097 | break; | |||
1098 | case bfd_arch_m68k: | |||
1099 | /* `16' is the type BFD produces for a jump table relocation. */ | |||
1100 | if (rel->howto->type != 16) | |||
1101 | continue; | |||
1102 | ||||
1103 | /* Adjust address in the jump table to point to | |||
1104 | the start of the bsr instruction. */ | |||
1105 | address -= 2; | |||
1106 | break; | |||
1107 | default: | |||
1108 | continue; | |||
1109 | } | |||
1110 | ||||
1111 | name = (char *) bfd_asymbol_name (*rel->sym_ptr_ptr)((*rel->sym_ptr_ptr)->name); | |||
1112 | prim_record_minimal_symbol (name, address, mst_solib_trampoline, | |||
1113 | objfile); | |||
1114 | } | |||
1115 | ||||
1116 | do_cleanups (back_to); | |||
1117 | } | |||
1118 | ||||
1119 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
1120 | static CORE_ADDR | |||
1121 | find_stab_function_addr (char *namestring, char *filename, | |||
1122 | struct objfile *objfile) | |||
1123 | { | |||
1124 | struct minimal_symbol *msym; | |||
1125 | char *p; | |||
1126 | int n; | |||
1127 | ||||
1128 | p = strchr (namestring, ':'); | |||
1129 | if (p == NULL((void*)0)) | |||
1130 | p = namestring; | |||
1131 | n = p - namestring; | |||
1132 | p = alloca (n + 2)__builtin_alloca(n + 2); | |||
1133 | strncpy (p, namestring, n); | |||
1134 | p[n] = 0; | |||
1135 | ||||
1136 | msym = lookup_minimal_symbol (p, filename, objfile); | |||
1137 | if (msym == NULL((void*)0)) | |||
1138 | { | |||
1139 | /* Sun Fortran appends an underscore to the minimal symbol name, | |||
1140 | try again with an appended underscore if the minimal symbol | |||
1141 | was not found. */ | |||
1142 | p[n] = '_'; | |||
1143 | p[n + 1] = 0; | |||
1144 | msym = lookup_minimal_symbol (p, filename, objfile); | |||
1145 | } | |||
1146 | ||||
1147 | if (msym == NULL((void*)0) && filename != NULL((void*)0)) | |||
1148 | { | |||
1149 | /* Try again without the filename. */ | |||
1150 | p[n] = 0; | |||
1151 | msym = lookup_minimal_symbol (p, NULL((void*)0), objfile); | |||
1152 | } | |||
1153 | if (msym == NULL((void*)0) && filename != NULL((void*)0)) | |||
1154 | { | |||
1155 | /* And try again for Sun Fortran, but without the filename. */ | |||
1156 | p[n] = '_'; | |||
1157 | p[n + 1] = 0; | |||
1158 | msym = lookup_minimal_symbol (p, NULL((void*)0), objfile); | |||
1159 | } | |||
1160 | ||||
1161 | return msym == NULL((void*)0) ? 0 : SYMBOL_VALUE_ADDRESS (msym)(msym)->ginfo.value.address; | |||
1162 | } | |||
1163 | #endif /* SOFUN_ADDRESS_MAYBE_MISSING */ | |||
1164 | ||||
1165 | static void | |||
1166 | function_outside_compilation_unit_complaint (const char *arg1) | |||
1167 | { | |||
1168 | complaint (&symfile_complaints, | |||
1169 | "function `%s' appears to be defined outside of all compilation units", | |||
1170 | arg1); | |||
1171 | } | |||
1172 | ||||
1173 | /* Setup partial_symtab's describing each source file for which | |||
1174 | debugging information is available. */ | |||
1175 | ||||
1176 | static void | |||
1177 | read_dbx_symtab (struct objfile *objfile) | |||
1178 | { | |||
1179 | struct external_nlist *bufp = 0; /* =0 avoids gcc -Wall glitch */ | |||
1180 | struct internal_nlist nlist; | |||
1181 | CORE_ADDR text_addr; | |||
1182 | int text_size; | |||
1183 | ||||
1184 | char *namestring; | |||
1185 | int nsl; | |||
1186 | int past_first_source_file = 0; | |||
1187 | CORE_ADDR last_o_file_start = 0; | |||
1188 | CORE_ADDR last_function_start = 0; | |||
1189 | struct cleanup *back_to; | |||
1190 | bfd *abfd; | |||
1191 | int textlow_not_set; | |||
1192 | int data_sect_index; | |||
1193 | ||||
1194 | /* Current partial symtab */ | |||
1195 | struct partial_symtab *pst; | |||
1196 | ||||
1197 | /* List of current psymtab's include files */ | |||
1198 | char **psymtab_include_list; | |||
1199 | int includes_allocated; | |||
1200 | int includes_used; | |||
1201 | ||||
1202 | /* Index within current psymtab dependency list */ | |||
1203 | struct partial_symtab **dependency_list; | |||
1204 | int dependencies_used, dependencies_allocated; | |||
1205 | ||||
1206 | text_addr = DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr); | |||
1207 | text_size = DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size); | |||
1208 | ||||
1209 | /* FIXME. We probably want to change stringtab_global rather than add this | |||
1210 | while processing every symbol entry. FIXME. */ | |||
1211 | file_string_table_offset = 0; | |||
1212 | next_file_string_table_offset = 0; | |||
1213 | ||||
1214 | stringtab_global = DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab); | |||
1215 | ||||
1216 | pst = (struct partial_symtab *) 0; | |||
1217 | ||||
1218 | includes_allocated = 30; | |||
1219 | includes_used = 0; | |||
1220 | psymtab_include_list = (char **) alloca (includes_allocated *__builtin_alloca(includes_allocated * sizeof (char *)) | |||
1221 | sizeof (char *))__builtin_alloca(includes_allocated * sizeof (char *)); | |||
1222 | ||||
1223 | dependencies_allocated = 30; | |||
1224 | dependencies_used = 0; | |||
1225 | dependency_list = | |||
1226 | (struct partial_symtab **) alloca (dependencies_allocated *__builtin_alloca(dependencies_allocated * sizeof (struct partial_symtab *)) | |||
1227 | sizeof (struct partial_symtab *))__builtin_alloca(dependencies_allocated * sizeof (struct partial_symtab *)); | |||
1228 | ||||
1229 | /* Init bincl list */ | |||
1230 | init_bincl_list (20, objfile); | |||
1231 | back_to = make_cleanup_free_bincl_list (objfile); | |||
1232 | ||||
1233 | last_source_file = NULL((void*)0); | |||
1234 | ||||
1235 | lowest_text_address = (CORE_ADDR) -1; | |||
1236 | ||||
1237 | symfile_bfd = objfile->obfd; /* For next_text_symbol */ | |||
1238 | abfd = objfile->obfd; | |||
1239 | symbuf_end = symbuf_idx = 0; | |||
1240 | next_symbol_text_func = dbx_next_symbol_text; | |||
1241 | textlow_not_set = 1; | |||
1242 | has_line_numbers = 0; | |||
1243 | ||||
1244 | /* FIXME: jimb/2003-09-12: We don't apply the right section's offset | |||
1245 | to global and static variables. The stab for a global or static | |||
1246 | variable doesn't give us any indication of which section it's in, | |||
1247 | so we can't tell immediately which offset in | |||
1248 | objfile->section_offsets we should apply to the variable's | |||
1249 | address. | |||
1250 | ||||
1251 | We could certainly find out which section contains the variable | |||
1252 | by looking up the variable's unrelocated address with | |||
1253 | find_pc_section, but that would be expensive; this is the | |||
1254 | function that constructs the partial symbol tables by examining | |||
1255 | every symbol in the entire executable, and it's | |||
1256 | performance-critical. So that expense would not be welcome. I'm | |||
1257 | not sure what to do about this at the moment. | |||
1258 | ||||
1259 | What we have done for years is to simply assume that the .data | |||
1260 | section's offset is appropriate for all global and static | |||
1261 | variables. Recently, this was expanded to fall back to the .bss | |||
1262 | section's offset if there is no .data section, and then to the | |||
1263 | .rodata section's offset. */ | |||
1264 | data_sect_index = objfile->sect_index_data; | |||
1265 | if (data_sect_index == -1) | |||
1266 | data_sect_index = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss; | |||
1267 | if (data_sect_index == -1) | |||
1268 | data_sect_index = SECT_OFF_RODATA (objfile)((objfile->sect_index_rodata == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1268, "sect_index_rodata not initialized"), -1) : objfile-> sect_index_rodata); | |||
1269 | ||||
1270 | /* If data_sect_index is still -1, that's okay. It's perfectly fine | |||
1271 | for the file to have no .data, no .bss, and no .text at all, if | |||
1272 | it also has no global or static variables. If it does, we will | |||
1273 | get an internal error from an ANOFFSET macro below when we try to | |||
1274 | use data_sect_index. */ | |||
1275 | ||||
1276 | for (symnum = 0; symnum < DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount); symnum++) | |||
1277 | { | |||
1278 | /* Get the symbol for this run and pull out some info */ | |||
1279 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow this to be interruptable */ | |||
1280 | if (symbuf_idx == symbuf_end) | |||
1281 | fill_symbuf (abfd); | |||
1282 | bufp = &symbuf[symbuf_idx++]; | |||
1283 | ||||
1284 | /* | |||
1285 | * Special case to speed up readin. | |||
1286 | */ | |||
1287 | if (bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff) == N_SLINE) | |||
1288 | { | |||
1289 | has_line_numbers = 1; | |||
1290 | continue; | |||
1291 | } | |||
1292 | ||||
1293 | INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) & 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32 )) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec ->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32 )) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)-> xvec->bfd_h_getx32)) ((bufp)->e_value)); }; | |||
1294 | OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++); | |||
1295 | ||||
1296 | /* Ok. There is a lot of code duplicated in the rest of this | |||
1297 | switch statement (for efficiency reasons). Since I don't | |||
1298 | like duplicating code, I will do my penance here, and | |||
1299 | describe the code which is duplicated: | |||
1300 | ||||
1301 | *) The assignment to namestring. | |||
1302 | *) The call to strchr. | |||
1303 | *) The addition of a partial symbol the the two partial | |||
1304 | symbol lists. This last is a large section of code, so | |||
1305 | I've imbedded it in the following macro. | |||
1306 | */ | |||
1307 | ||||
1308 | switch (nlist.n_type) | |||
1309 | { | |||
1310 | char *p; | |||
1311 | /* | |||
1312 | * Standard, external, non-debugger, symbols | |||
1313 | */ | |||
1314 | ||||
1315 | case N_TEXT4 | N_EXT1: | |||
1316 | case N_NBTEXT | N_EXT1: | |||
1317 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1317, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1317, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1317, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1318 | goto record_it; | |||
1319 | ||||
1320 | case N_DATA6 | N_EXT1: | |||
1321 | case N_NBDATA | N_EXT1: | |||
1322 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1322, "sect_index_data not initialized"), -1) : objfile-> sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1322, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_data == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1322, "sect_index_data not initialized"), -1) : objfile-> sect_index_data)]); | |||
1323 | goto record_it; | |||
1324 | ||||
1325 | case N_BSS8: | |||
1326 | case N_BSS8 | N_EXT1: | |||
1327 | case N_NBBSS | N_EXT1: | |||
1328 | case N_SETV0x1C | N_EXT1: /* FIXME, is this in BSS? */ | |||
1329 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1329, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[(objfile)->sect_index_bss]); | |||
1330 | goto record_it; | |||
1331 | ||||
1332 | case N_ABS2 | N_EXT1: | |||
1333 | record_it: | |||
1334 | namestring = set_namestring (objfile, nlist); | |||
1335 | ||||
1336 | bss_ext_symbol: | |||
1337 | record_minimal_symbol (namestring, nlist.n_value, | |||
1338 | nlist.n_type, objfile); /* Always */ | |||
1339 | continue; | |||
1340 | ||||
1341 | /* Standard, local, non-debugger, symbols */ | |||
1342 | ||||
1343 | case N_NBTEXT: | |||
1344 | ||||
1345 | /* We need to be able to deal with both N_FN or N_TEXT, | |||
1346 | because we have no way of knowing whether the sys-supplied ld | |||
1347 | or GNU ld was used to make the executable. Sequents throw | |||
1348 | in another wrinkle -- they renumbered N_FN. */ | |||
1349 | ||||
1350 | case N_FN0x1f: | |||
1351 | case N_FN_SEQ0x0C: | |||
1352 | case N_TEXT4: | |||
1353 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1353, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1353, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1353, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1354 | namestring = set_namestring (objfile, nlist); | |||
1355 | ||||
1356 | if ((namestring[0] == '-' && namestring[1] == 'l') | |||
1357 | || (namestring[(nsl = strlen (namestring)) - 1] == 'o' | |||
1358 | && namestring[nsl - 2] == '.')) | |||
1359 | { | |||
1360 | if (past_first_source_file && pst | |||
1361 | /* The gould NP1 uses low values for .o and -l symbols | |||
1362 | which are not the address. */ | |||
1363 | && nlist.n_value >= pst->textlow) | |||
1364 | { | |||
1365 | end_psymtab (pst, psymtab_include_list, includes_used, | |||
1366 | symnum * symbol_size, | |||
1367 | nlist.n_value > pst->texthigh | |||
1368 | ? nlist.n_value : pst->texthigh, | |||
1369 | dependency_list, dependencies_used, textlow_not_set); | |||
1370 | pst = (struct partial_symtab *) 0; | |||
1371 | includes_used = 0; | |||
1372 | dependencies_used = 0; | |||
1373 | } | |||
1374 | else | |||
1375 | past_first_source_file = 1; | |||
1376 | last_o_file_start = nlist.n_value; | |||
1377 | } | |||
1378 | else | |||
1379 | goto record_it; | |||
1380 | continue; | |||
1381 | ||||
1382 | case N_DATA6: | |||
1383 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1383, "sect_index_data not initialized"), -1) : objfile-> sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1383, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_data == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1383, "sect_index_data not initialized"), -1) : objfile-> sect_index_data)]); | |||
1384 | goto record_it; | |||
1385 | ||||
1386 | case N_UNDF0 | N_EXT1: | |||
1387 | if (nlist.n_value != 0) | |||
1388 | { | |||
1389 | /* This is a "Fortran COMMON" symbol. See if the target | |||
1390 | environment knows where it has been relocated to. */ | |||
1391 | ||||
1392 | CORE_ADDR reladdr; | |||
1393 | ||||
1394 | namestring = set_namestring (objfile, nlist); | |||
1395 | if (target_lookup_symbol (namestring, &reladdr)(*current_target.to_lookup_symbol) (namestring, &reladdr)) | |||
1396 | { | |||
1397 | continue; /* Error in lookup; ignore symbol for now. */ | |||
1398 | } | |||
1399 | nlist.n_type ^= (N_BSS8 ^ N_UNDF0); /* Define it as a bss-symbol */ | |||
1400 | nlist.n_value = reladdr; | |||
1401 | goto bss_ext_symbol; | |||
1402 | } | |||
1403 | continue; /* Just undefined, not COMMON */ | |||
1404 | ||||
1405 | case N_UNDF0: | |||
1406 | if (processing_acc_compilation && nlist.n_strx == 1) | |||
1407 | { | |||
1408 | /* Deal with relative offsets in the string table | |||
1409 | used in ELF+STAB under Solaris. If we want to use the | |||
1410 | n_strx field, which contains the name of the file, | |||
1411 | we must adjust file_string_table_offset *before* calling | |||
1412 | set_namestring(). */ | |||
1413 | past_first_source_file = 1; | |||
1414 | file_string_table_offset = next_file_string_table_offset; | |||
1415 | next_file_string_table_offset = | |||
1416 | file_string_table_offset + nlist.n_value; | |||
1417 | if (next_file_string_table_offset < file_string_table_offset) | |||
1418 | error ("string table offset backs up at %d", symnum); | |||
1419 | /* FIXME -- replace error() with complaint. */ | |||
1420 | continue; | |||
1421 | } | |||
1422 | continue; | |||
1423 | ||||
1424 | /* Lots of symbol types we can just ignore. */ | |||
1425 | ||||
1426 | case N_ABS2: | |||
1427 | case N_NBDATA: | |||
1428 | case N_NBBSS: | |||
1429 | continue; | |||
1430 | ||||
1431 | /* Keep going . . . */ | |||
1432 | ||||
1433 | /* | |||
1434 | * Special symbol types for GNU | |||
1435 | */ | |||
1436 | case N_INDR0x0a: | |||
1437 | case N_INDR0x0a | N_EXT1: | |||
1438 | case N_SETA0x14: | |||
1439 | case N_SETA0x14 | N_EXT1: | |||
1440 | case N_SETT0x16: | |||
1441 | case N_SETT0x16 | N_EXT1: | |||
1442 | case N_SETD0x18: | |||
1443 | case N_SETD0x18 | N_EXT1: | |||
1444 | case N_SETB0x1A: | |||
1445 | case N_SETB0x1A | N_EXT1: | |||
1446 | case N_SETV0x1C: | |||
1447 | continue; | |||
1448 | ||||
1449 | /* | |||
1450 | * Debugger symbols | |||
1451 | */ | |||
1452 | ||||
1453 | case N_SO: | |||
1454 | { | |||
1455 | CORE_ADDR valu; | |||
1456 | static int prev_so_symnum = -10; | |||
1457 | static int first_so_symnum; | |||
1458 | char *p; | |||
1459 | static char *dirname_nso; | |||
1460 | int prev_textlow_not_set; | |||
1461 | ||||
1462 | valu = nlist.n_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1462, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1462, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1462, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1463 | ||||
1464 | prev_textlow_not_set = textlow_not_set; | |||
1465 | ||||
1466 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
1467 | /* A zero value is probably an indication for the SunPRO 3.0 | |||
1468 | compiler. end_psymtab explicitly tests for zero, so | |||
1469 | don't relocate it. */ | |||
1470 | ||||
1471 | if (nlist.n_value == 0) | |||
1472 | { | |||
1473 | textlow_not_set = 1; | |||
1474 | valu = 0; | |||
1475 | } | |||
1476 | else | |||
1477 | textlow_not_set = 0; | |||
1478 | #else | |||
1479 | textlow_not_set = 0; | |||
1480 | #endif | |||
1481 | past_first_source_file = 1; | |||
1482 | ||||
1483 | if (prev_so_symnum != symnum - 1) | |||
1484 | { /* Here if prev stab wasn't N_SO */ | |||
1485 | first_so_symnum = symnum; | |||
1486 | ||||
1487 | if (pst) | |||
1488 | { | |||
1489 | end_psymtab (pst, psymtab_include_list, includes_used, | |||
1490 | symnum * symbol_size, | |||
1491 | valu > pst->texthigh ? valu : pst->texthigh, | |||
1492 | dependency_list, dependencies_used, | |||
1493 | prev_textlow_not_set); | |||
1494 | pst = (struct partial_symtab *) 0; | |||
1495 | includes_used = 0; | |||
1496 | dependencies_used = 0; | |||
1497 | } | |||
1498 | } | |||
1499 | ||||
1500 | prev_so_symnum = symnum; | |||
1501 | ||||
1502 | /* End the current partial symtab and start a new one */ | |||
1503 | ||||
1504 | namestring = set_namestring (objfile, nlist); | |||
1505 | ||||
1506 | /* Null name means end of .o file. Don't start a new one. */ | |||
1507 | if (*namestring == '\000') | |||
1508 | continue; | |||
1509 | ||||
1510 | /* Some compilers (including gcc) emit a pair of initial N_SOs. | |||
1511 | The first one is a directory name; the second the file name. | |||
1512 | If pst exists, is empty, and has a filename ending in '/', | |||
1513 | we assume the previous N_SO was a directory name. */ | |||
1514 | ||||
1515 | p = strrchr (namestring, '/'); | |||
1516 | if (p && *(p + 1) == '\000') | |||
1517 | { | |||
1518 | /* Save the directory name SOs locally, then save it into | |||
1519 | the psymtab when it's created below. */ | |||
1520 | dirname_nso = namestring; | |||
1521 | continue; | |||
1522 | } | |||
1523 | ||||
1524 | /* Some other compilers (C++ ones in particular) emit useless | |||
1525 | SOs for non-existant .c files. We ignore all subsequent SOs that | |||
1526 | immediately follow the first. */ | |||
1527 | ||||
1528 | if (!pst) | |||
1529 | { | |||
1530 | pst = start_psymtab (objfile, | |||
1531 | namestring, valu, | |||
1532 | first_so_symnum * symbol_size, | |||
1533 | objfile->global_psymbols.next, | |||
1534 | objfile->static_psymbols.next); | |||
1535 | pst->dirname = dirname_nso; | |||
1536 | dirname_nso = NULL((void*)0); | |||
1537 | } | |||
1538 | continue; | |||
1539 | } | |||
1540 | ||||
1541 | case N_BINCL: | |||
1542 | { | |||
1543 | enum language tmp_language; | |||
1544 | /* Add this bincl to the bincl_list for future EXCLs. No | |||
1545 | need to save the string; it'll be around until | |||
1546 | read_dbx_symtab function returns */ | |||
1547 | ||||
1548 | namestring = set_namestring (objfile, nlist); | |||
1549 | tmp_language = deduce_language_from_filename (namestring); | |||
1550 | ||||
1551 | /* Only change the psymtab's language if we've learned | |||
1552 | something useful (eg. tmp_language is not language_unknown). | |||
1553 | In addition, to match what start_subfile does, never change | |||
1554 | from C++ to C. */ | |||
1555 | if (tmp_language != language_unknown | |||
1556 | && (tmp_language != language_c | |||
1557 | || psymtab_language != language_cplus)) | |||
1558 | psymtab_language = tmp_language; | |||
1559 | ||||
1560 | if (pst == NULL((void*)0)) | |||
1561 | { | |||
1562 | /* FIXME: we should not get here without a PST to work on. | |||
1563 | Attempt to recover. */ | |||
1564 | complaint (&symfile_complaints, | |||
1565 | "N_BINCL %s not in entries for any file, at symtab pos %d", | |||
1566 | namestring, symnum); | |||
1567 | continue; | |||
1568 | } | |||
1569 | add_bincl_to_list (pst, namestring, nlist.n_value); | |||
1570 | ||||
1571 | /* Mark down an include file in the current psymtab */ | |||
1572 | ||||
1573 | goto record_include_file; | |||
1574 | } | |||
1575 | ||||
1576 | case N_SOL: | |||
1577 | { | |||
1578 | enum language tmp_language; | |||
1579 | /* Mark down an include file in the current psymtab */ | |||
1580 | ||||
1581 | namestring = set_namestring (objfile, nlist); | |||
1582 | tmp_language = deduce_language_from_filename (namestring); | |||
1583 | ||||
1584 | /* Only change the psymtab's language if we've learned | |||
1585 | something useful (eg. tmp_language is not language_unknown). | |||
1586 | In addition, to match what start_subfile does, never change | |||
1587 | from C++ to C. */ | |||
1588 | if (tmp_language != language_unknown | |||
1589 | && (tmp_language != language_c | |||
1590 | || psymtab_language != language_cplus)) | |||
1591 | psymtab_language = tmp_language; | |||
1592 | ||||
1593 | /* In C++, one may expect the same filename to come round many | |||
1594 | times, when code is coming alternately from the main file | |||
1595 | and from inline functions in other files. So I check to see | |||
1596 | if this is a file we've seen before -- either the main | |||
1597 | source file, or a previously included file. | |||
1598 | ||||
1599 | This seems to be a lot of time to be spending on N_SOL, but | |||
1600 | things like "break c-exp.y:435" need to work (I | |||
1601 | suppose the psymtab_include_list could be hashed or put | |||
1602 | in a binary tree, if profiling shows this is a major hog). */ | |||
1603 | if (pst && strcmp (namestring, pst->filename) == 0) | |||
1604 | continue; | |||
1605 | { | |||
1606 | int i; | |||
1607 | for (i = 0; i < includes_used; i++) | |||
1608 | if (strcmp (namestring, psymtab_include_list[i]) == 0) | |||
1609 | { | |||
1610 | i = -1; | |||
1611 | break; | |||
1612 | } | |||
1613 | if (i == -1) | |||
1614 | continue; | |||
1615 | } | |||
1616 | ||||
1617 | record_include_file: | |||
1618 | ||||
1619 | psymtab_include_list[includes_used++] = namestring; | |||
1620 | if (includes_used >= includes_allocated) | |||
1621 | { | |||
1622 | char **orig = psymtab_include_list; | |||
1623 | ||||
1624 | psymtab_include_list = (char **) | |||
1625 | alloca ((includes_allocated *= 2) *__builtin_alloca((includes_allocated *= 2) * sizeof (char *)) | |||
1626 | sizeof (char *))__builtin_alloca((includes_allocated *= 2) * sizeof (char *)); | |||
1627 | memcpy (psymtab_include_list, orig, | |||
1628 | includes_used * sizeof (char *)); | |||
1629 | } | |||
1630 | continue; | |||
1631 | } | |||
1632 | case N_LSYM: /* Typedef or automatic variable. */ | |||
1633 | case N_STSYM: /* Data seg var -- static */ | |||
1634 | case N_LCSYM: /* BSS " */ | |||
1635 | case N_ROSYM: /* Read-only data seg var -- static. */ | |||
1636 | case N_NBSTS: /* Gould nobase. */ | |||
1637 | case N_NBLCS: /* symbols. */ | |||
1638 | case N_FUN: | |||
1639 | case N_GSYM: /* Global (extern) variable; can be | |||
1640 | data or bss (sigh FIXME). */ | |||
1641 | ||||
1642 | /* Following may probably be ignored; I'll leave them here | |||
1643 | for now (until I do Pascal and Modula 2 extensions). */ | |||
1644 | ||||
1645 | case N_PC: /* I may or may not need this; I | |||
1646 | suspect not. */ | |||
1647 | case N_M2C: /* I suspect that I can ignore this here. */ | |||
1648 | case N_SCOPE: /* Same. */ | |||
1649 | ||||
1650 | namestring = set_namestring (objfile, nlist); | |||
1651 | ||||
1652 | /* See if this is an end of function stab. */ | |||
1653 | if (pst && nlist.n_type == N_FUN && *namestring == '\000') | |||
1654 | { | |||
1655 | CORE_ADDR valu; | |||
1656 | ||||
1657 | /* It's value is the size (in bytes) of the function for | |||
1658 | function relative stabs, or the address of the function's | |||
1659 | end for old style stabs. */ | |||
1660 | valu = nlist.n_value + last_function_start; | |||
1661 | if (pst->texthigh == 0 || valu > pst->texthigh) | |||
1662 | pst->texthigh = valu; | |||
1663 | break; | |||
1664 | } | |||
1665 | ||||
1666 | p = (char *) strchr (namestring, ':'); | |||
1667 | if (!p) | |||
1668 | continue; /* Not a debugging symbol. */ | |||
1669 | ||||
1670 | ||||
1671 | ||||
1672 | /* Main processing section for debugging symbols which | |||
1673 | the initial read through the symbol tables needs to worry | |||
1674 | about. If we reach this point, the symbol which we are | |||
1675 | considering is definitely one we are interested in. | |||
1676 | p must also contain the (valid) index into the namestring | |||
1677 | which indicates the debugging type symbol. */ | |||
1678 | ||||
1679 | switch (p[1]) | |||
1680 | { | |||
1681 | case 'S': | |||
1682 | nlist.n_value += ANOFFSET (objfile->section_offsets, data_sect_index)((data_sect_index == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1682, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[data_sect_index]); | |||
1683 | #ifdef STATIC_TRANSFORM_NAME | |||
1684 | namestring = STATIC_TRANSFORM_NAME (namestring); | |||
1685 | #endif | |||
1686 | add_psymbol_to_list (namestring, p - namestring, | |||
1687 | VAR_DOMAIN, LOC_STATIC, | |||
1688 | &objfile->static_psymbols, | |||
1689 | 0, nlist.n_value, | |||
1690 | psymtab_language, objfile); | |||
1691 | continue; | |||
1692 | case 'G': | |||
1693 | nlist.n_value += ANOFFSET (objfile->section_offsets, data_sect_index)((data_sect_index == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1693, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[data_sect_index]); | |||
1694 | /* The addresses in these entries are reported to be | |||
1695 | wrong. See the code that reads 'G's for symtabs. */ | |||
1696 | add_psymbol_to_list (namestring, p - namestring, | |||
1697 | VAR_DOMAIN, LOC_STATIC, | |||
1698 | &objfile->global_psymbols, | |||
1699 | 0, nlist.n_value, | |||
1700 | psymtab_language, objfile); | |||
1701 | continue; | |||
1702 | ||||
1703 | case 'T': | |||
1704 | /* When a 'T' entry is defining an anonymous enum, it | |||
1705 | may have a name which is the empty string, or a | |||
1706 | single space. Since they're not really defining a | |||
1707 | symbol, those shouldn't go in the partial symbol | |||
1708 | table. We do pick up the elements of such enums at | |||
1709 | 'check_enum:', below. */ | |||
1710 | if (p >= namestring + 2 | |||
1711 | || (p == namestring + 1 | |||
1712 | && namestring[0] != ' ')) | |||
1713 | { | |||
1714 | add_psymbol_to_list (namestring, p - namestring, | |||
1715 | STRUCT_DOMAIN, LOC_TYPEDEF, | |||
1716 | &objfile->static_psymbols, | |||
1717 | nlist.n_value, 0, | |||
1718 | psymtab_language, objfile); | |||
1719 | if (p[2] == 't') | |||
1720 | { | |||
1721 | /* Also a typedef with the same name. */ | |||
1722 | add_psymbol_to_list (namestring, p - namestring, | |||
1723 | VAR_DOMAIN, LOC_TYPEDEF, | |||
1724 | &objfile->static_psymbols, | |||
1725 | nlist.n_value, 0, | |||
1726 | psymtab_language, objfile); | |||
1727 | p += 1; | |||
1728 | } | |||
1729 | } | |||
1730 | goto check_enum; | |||
1731 | case 't': | |||
1732 | if (p != namestring) /* a name is there, not just :T... */ | |||
1733 | { | |||
1734 | add_psymbol_to_list (namestring, p - namestring, | |||
1735 | VAR_DOMAIN, LOC_TYPEDEF, | |||
1736 | &objfile->static_psymbols, | |||
1737 | nlist.n_value, 0, | |||
1738 | psymtab_language, objfile); | |||
1739 | } | |||
1740 | check_enum: | |||
1741 | /* If this is an enumerated type, we need to | |||
1742 | add all the enum constants to the partial symbol | |||
1743 | table. This does not cover enums without names, e.g. | |||
1744 | "enum {a, b} c;" in C, but fortunately those are | |||
1745 | rare. There is no way for GDB to find those from the | |||
1746 | enum type without spending too much time on it. Thus | |||
1747 | to solve this problem, the compiler needs to put out the | |||
1748 | enum in a nameless type. GCC2 does this. */ | |||
1749 | ||||
1750 | /* We are looking for something of the form | |||
1751 | <name> ":" ("t" | "T") [<number> "="] "e" | |||
1752 | {<constant> ":" <value> ","} ";". */ | |||
1753 | ||||
1754 | /* Skip over the colon and the 't' or 'T'. */ | |||
1755 | p += 2; | |||
1756 | /* This type may be given a number. Also, numbers can come | |||
1757 | in pairs like (0,26). Skip over it. */ | |||
1758 | while ((*p >= '0' && *p <= '9') | |||
1759 | || *p == '(' || *p == ',' || *p == ')' | |||
1760 | || *p == '=') | |||
1761 | p++; | |||
1762 | ||||
1763 | if (*p++ == 'e') | |||
1764 | { | |||
1765 | /* The aix4 compiler emits extra crud before the members. */ | |||
1766 | if (*p == '-') | |||
1767 | { | |||
1768 | /* Skip over the type (?). */ | |||
1769 | while (*p != ':') | |||
1770 | p++; | |||
1771 | ||||
1772 | /* Skip over the colon. */ | |||
1773 | p++; | |||
1774 | } | |||
1775 | ||||
1776 | /* We have found an enumerated type. */ | |||
1777 | /* According to comments in read_enum_type | |||
1778 | a comma could end it instead of a semicolon. | |||
1779 | I don't know where that happens. | |||
1780 | Accept either. */ | |||
1781 | while (*p && *p != ';' && *p != ',') | |||
1782 | { | |||
1783 | char *q; | |||
1784 | ||||
1785 | /* Check for and handle cretinous dbx symbol name | |||
1786 | continuation! */ | |||
1787 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) | |||
1788 | p = next_symbol_text (objfile)(*next_symbol_text_func)(objfile); | |||
1789 | ||||
1790 | /* Point to the character after the name | |||
1791 | of the enum constant. */ | |||
1792 | for (q = p; *q && *q != ':'; q++) | |||
1793 | ; | |||
1794 | /* Note that the value doesn't matter for | |||
1795 | enum constants in psymtabs, just in symtabs. */ | |||
1796 | add_psymbol_to_list (p, q - p, | |||
1797 | VAR_DOMAIN, LOC_CONST, | |||
1798 | &objfile->static_psymbols, 0, | |||
1799 | 0, psymtab_language, objfile); | |||
1800 | /* Point past the name. */ | |||
1801 | p = q; | |||
1802 | /* Skip over the value. */ | |||
1803 | while (*p && *p != ',') | |||
1804 | p++; | |||
1805 | /* Advance past the comma. */ | |||
1806 | if (*p) | |||
1807 | p++; | |||
1808 | } | |||
1809 | } | |||
1810 | continue; | |||
1811 | case 'c': | |||
1812 | /* Constant, e.g. from "const" in Pascal. */ | |||
1813 | add_psymbol_to_list (namestring, p - namestring, | |||
1814 | VAR_DOMAIN, LOC_CONST, | |||
1815 | &objfile->static_psymbols, nlist.n_value, | |||
1816 | 0, psymtab_language, objfile); | |||
1817 | continue; | |||
1818 | ||||
1819 | case 'f': | |||
1820 | if (! pst) | |||
1821 | { | |||
1822 | int name_len = p - namestring; | |||
1823 | char *name = xmalloc (name_len + 1); | |||
1824 | memcpy (name, namestring, name_len); | |||
1825 | name[name_len] = '\0'; | |||
1826 | function_outside_compilation_unit_complaint (name); | |||
1827 | xfree (name); | |||
1828 | } | |||
1829 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1829, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1829, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1829, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1830 | /* Kludges for ELF/STABS with Sun ACC */ | |||
1831 | last_function_name = namestring; | |||
1832 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
1833 | /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit | |||
1834 | value for the bottom of the text seg in those cases. */ | |||
1835 | if (nlist.n_value == ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]) | |||
1836 | SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1836, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)])) | |||
1837 | { | |||
1838 | CORE_ADDR minsym_valu = | |||
1839 | find_stab_function_addr (namestring, pst->filename, objfile); | |||
1840 | /* find_stab_function_addr will return 0 if the minimal | |||
1841 | symbol wasn't found. (Unfortunately, this might also | |||
1842 | be a valid address.) Anyway, if it *does* return 0, | |||
1843 | it is likely that the value was set correctly to begin | |||
1844 | with... */ | |||
1845 | if (minsym_valu != 0) | |||
1846 | nlist.n_value = minsym_valu; | |||
1847 | } | |||
1848 | if (pst && textlow_not_set) | |||
1849 | { | |||
1850 | pst->textlow = nlist.n_value; | |||
1851 | textlow_not_set = 0; | |||
1852 | } | |||
1853 | #endif | |||
1854 | /* End kludge. */ | |||
1855 | ||||
1856 | /* Keep track of the start of the last function so we | |||
1857 | can handle end of function symbols. */ | |||
1858 | last_function_start = nlist.n_value; | |||
1859 | ||||
1860 | /* In reordered executables this function may lie outside | |||
1861 | the bounds created by N_SO symbols. If that's the case | |||
1862 | use the address of this function as the low bound for | |||
1863 | the partial symbol table. */ | |||
1864 | if (pst | |||
1865 | && (textlow_not_set | |||
1866 | || (nlist.n_value < pst->textlow | |||
1867 | && (nlist.n_value | |||
1868 | != ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]) | |||
1869 | SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1869, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]))))) | |||
1870 | { | |||
1871 | pst->textlow = nlist.n_value; | |||
1872 | textlow_not_set = 0; | |||
1873 | } | |||
1874 | add_psymbol_to_list (namestring, p - namestring, | |||
1875 | VAR_DOMAIN, LOC_BLOCK, | |||
1876 | &objfile->static_psymbols, | |||
1877 | 0, nlist.n_value, | |||
1878 | psymtab_language, objfile); | |||
1879 | continue; | |||
1880 | ||||
1881 | /* Global functions were ignored here, but now they | |||
1882 | are put into the global psymtab like one would expect. | |||
1883 | They're also in the minimal symbol table. */ | |||
1884 | case 'F': | |||
1885 | if (! pst) | |||
1886 | { | |||
1887 | int name_len = p - namestring; | |||
1888 | char *name = xmalloc (name_len + 1); | |||
1889 | memcpy (name, namestring, name_len); | |||
1890 | name[name_len] = '\0'; | |||
1891 | function_outside_compilation_unit_complaint (name); | |||
1892 | xfree (name); | |||
1893 | } | |||
1894 | nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1894, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1894, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1894, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1895 | /* Kludges for ELF/STABS with Sun ACC */ | |||
1896 | last_function_name = namestring; | |||
1897 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
1898 | /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit | |||
1899 | value for the bottom of the text seg in those cases. */ | |||
1900 | if (nlist.n_value == ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]) | |||
1901 | SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1901, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)])) | |||
1902 | { | |||
1903 | CORE_ADDR minsym_valu = | |||
1904 | find_stab_function_addr (namestring, pst->filename, objfile); | |||
1905 | /* find_stab_function_addr will return 0 if the minimal | |||
1906 | symbol wasn't found. (Unfortunately, this might also | |||
1907 | be a valid address.) Anyway, if it *does* return 0, | |||
1908 | it is likely that the value was set correctly to begin | |||
1909 | with... */ | |||
1910 | if (minsym_valu != 0) | |||
1911 | nlist.n_value = minsym_valu; | |||
1912 | } | |||
1913 | if (pst && textlow_not_set) | |||
1914 | { | |||
1915 | pst->textlow = nlist.n_value; | |||
1916 | textlow_not_set = 0; | |||
1917 | } | |||
1918 | #endif | |||
1919 | /* End kludge. */ | |||
1920 | ||||
1921 | /* Keep track of the start of the last function so we | |||
1922 | can handle end of function symbols. */ | |||
1923 | last_function_start = nlist.n_value; | |||
1924 | ||||
1925 | /* In reordered executables this function may lie outside | |||
1926 | the bounds created by N_SO symbols. If that's the case | |||
1927 | use the address of this function as the low bound for | |||
1928 | the partial symbol table. */ | |||
1929 | if (pst | |||
1930 | && (textlow_not_set | |||
1931 | || (nlist.n_value < pst->textlow | |||
1932 | && (nlist.n_value | |||
1933 | != ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]) | |||
1934 | SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 1934, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]))))) | |||
1935 | { | |||
1936 | pst->textlow = nlist.n_value; | |||
1937 | textlow_not_set = 0; | |||
1938 | } | |||
1939 | add_psymbol_to_list (namestring, p - namestring, | |||
1940 | VAR_DOMAIN, LOC_BLOCK, | |||
1941 | &objfile->global_psymbols, | |||
1942 | 0, nlist.n_value, | |||
1943 | psymtab_language, objfile); | |||
1944 | continue; | |||
1945 | ||||
1946 | /* Two things show up here (hopefully); static symbols of | |||
1947 | local scope (static used inside braces) or extensions | |||
1948 | of structure symbols. We can ignore both. */ | |||
1949 | case 'V': | |||
1950 | case '(': | |||
1951 | case '0': | |||
1952 | case '1': | |||
1953 | case '2': | |||
1954 | case '3': | |||
1955 | case '4': | |||
1956 | case '5': | |||
1957 | case '6': | |||
1958 | case '7': | |||
1959 | case '8': | |||
1960 | case '9': | |||
1961 | case '-': | |||
1962 | case '#': /* for symbol identification (used in live ranges) */ | |||
1963 | continue; | |||
1964 | ||||
1965 | case ':': | |||
1966 | /* It is a C++ nested symbol. We don't need to record it | |||
1967 | (I don't think); if we try to look up foo::bar::baz, | |||
1968 | then symbols for the symtab containing foo should get | |||
1969 | read in, I think. */ | |||
1970 | /* Someone says sun cc puts out symbols like | |||
1971 | /foo/baz/maclib::/usr/local/bin/maclib, | |||
1972 | which would get here with a symbol type of ':'. */ | |||
1973 | continue; | |||
1974 | ||||
1975 | default: | |||
1976 | /* Unexpected symbol descriptor. The second and subsequent stabs | |||
1977 | of a continued stab can show up here. The question is | |||
1978 | whether they ever can mimic a normal stab--it would be | |||
1979 | nice if not, since we certainly don't want to spend the | |||
1980 | time searching to the end of every string looking for | |||
1981 | a backslash. */ | |||
1982 | ||||
1983 | complaint (&symfile_complaints, "unknown symbol descriptor `%c'", | |||
1984 | p[1]); | |||
1985 | ||||
1986 | /* Ignore it; perhaps it is an extension that we don't | |||
1987 | know about. */ | |||
1988 | continue; | |||
1989 | } | |||
1990 | ||||
1991 | case N_EXCL: | |||
1992 | ||||
1993 | namestring = set_namestring (objfile, nlist); | |||
1994 | ||||
1995 | /* Find the corresponding bincl and mark that psymtab on the | |||
1996 | psymtab dependency list */ | |||
1997 | { | |||
1998 | struct partial_symtab *needed_pst = | |||
1999 | find_corresponding_bincl_psymtab (namestring, nlist.n_value); | |||
2000 | ||||
2001 | /* If this include file was defined earlier in this file, | |||
2002 | leave it alone. */ | |||
2003 | if (needed_pst == pst) | |||
2004 | continue; | |||
2005 | ||||
2006 | if (needed_pst) | |||
2007 | { | |||
2008 | int i; | |||
2009 | int found = 0; | |||
2010 | ||||
2011 | for (i = 0; i < dependencies_used; i++) | |||
2012 | if (dependency_list[i] == needed_pst) | |||
2013 | { | |||
2014 | found = 1; | |||
2015 | break; | |||
2016 | } | |||
2017 | ||||
2018 | /* If it's already in the list, skip the rest. */ | |||
2019 | if (found) | |||
2020 | continue; | |||
2021 | ||||
2022 | dependency_list[dependencies_used++] = needed_pst; | |||
2023 | if (dependencies_used >= dependencies_allocated) | |||
2024 | { | |||
2025 | struct partial_symtab **orig = dependency_list; | |||
2026 | dependency_list = | |||
2027 | (struct partial_symtab **) | |||
2028 | alloca ((dependencies_allocated *= 2)__builtin_alloca((dependencies_allocated *= 2) * sizeof (struct partial_symtab *)) | |||
2029 | * sizeof (struct partial_symtab *))__builtin_alloca((dependencies_allocated *= 2) * sizeof (struct partial_symtab *)); | |||
2030 | memcpy (dependency_list, orig, | |||
2031 | (dependencies_used | |||
2032 | * sizeof (struct partial_symtab *))); | |||
2033 | #ifdef DEBUG_INFO | |||
2034 | fprintf_unfiltered (gdb_stderr, "Had to reallocate dependency list.\n"); | |||
2035 | fprintf_unfiltered (gdb_stderr, "New dependencies allocated: %d\n", | |||
2036 | dependencies_allocated); | |||
2037 | #endif | |||
2038 | } | |||
2039 | } | |||
2040 | } | |||
2041 | continue; | |||
2042 | ||||
2043 | case N_ENDM: | |||
2044 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
2045 | /* Solaris 2 end of module, finish current partial symbol table. | |||
2046 | end_psymtab will set pst->texthigh to the proper value, which | |||
2047 | is necessary if a module compiled without debugging info | |||
2048 | follows this module. */ | |||
2049 | if (pst) | |||
2050 | { | |||
2051 | end_psymtab (pst, psymtab_include_list, includes_used, | |||
2052 | symnum * symbol_size, | |||
2053 | (CORE_ADDR) 0, | |||
2054 | dependency_list, dependencies_used, textlow_not_set); | |||
2055 | pst = (struct partial_symtab *) 0; | |||
2056 | includes_used = 0; | |||
2057 | dependencies_used = 0; | |||
2058 | } | |||
2059 | #endif | |||
2060 | continue; | |||
2061 | ||||
2062 | case N_RBRAC: | |||
2063 | #ifdef HANDLE_RBRAC | |||
2064 | HANDLE_RBRAC (nlist.n_value); | |||
2065 | continue; | |||
2066 | #endif | |||
2067 | case N_EINCL: | |||
2068 | case N_DSLINE: | |||
2069 | case N_BSLINE: | |||
2070 | case N_SSYM: /* Claim: Structure or union element. | |||
2071 | Hopefully, I can ignore this. */ | |||
2072 | case N_ENTRY: /* Alternate entry point; can ignore. */ | |||
2073 | case N_MAIN: /* Can definitely ignore this. */ | |||
2074 | case N_CATCH: /* These are GNU C++ extensions */ | |||
2075 | case N_EHDECL: /* that can safely be ignored here. */ | |||
2076 | case N_LENG: | |||
2077 | case N_BCOMM: | |||
2078 | case N_ECOMM: | |||
2079 | case N_ECOML: | |||
2080 | case N_FNAME: | |||
2081 | case N_SLINE: | |||
2082 | case N_RSYM: | |||
2083 | case N_PSYM: | |||
2084 | case N_LBRAC: | |||
2085 | case N_NSYMS: /* Ultrix 4.0: symbol count */ | |||
2086 | case N_DEFD: /* GNU Modula-2 */ | |||
2087 | case N_ALIAS: /* SunPro F77: alias name, ignore for now. */ | |||
2088 | ||||
2089 | case N_OBJ: /* useless types from Solaris */ | |||
2090 | case N_OPT: | |||
2091 | case N_PATCH: | |||
2092 | /* These symbols aren't interesting; don't worry about them */ | |||
2093 | ||||
2094 | continue; | |||
2095 | ||||
2096 | default: | |||
2097 | /* If we haven't found it yet, ignore it. It's probably some | |||
2098 | new type we don't know about yet. */ | |||
2099 | unknown_symtype_complaint (hex_string (nlist.n_type)); | |||
2100 | continue; | |||
2101 | } | |||
2102 | } | |||
2103 | ||||
2104 | /* If there's stuff to be cleaned up, clean it up. */ | |||
2105 | if (pst) | |||
2106 | { | |||
2107 | /* Don't set pst->texthigh lower than it already is. */ | |||
2108 | CORE_ADDR text_end = | |||
2109 | (lowest_text_address == (CORE_ADDR) -1 | |||
2110 | ? (text_addr + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2110, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2110, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2110, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)])) | |||
2111 | : lowest_text_address) | |||
2112 | + text_size; | |||
2113 | ||||
2114 | end_psymtab (pst, psymtab_include_list, includes_used, | |||
2115 | symnum * symbol_size, | |||
2116 | text_end > pst->texthigh ? text_end : pst->texthigh, | |||
2117 | dependency_list, dependencies_used, textlow_not_set); | |||
2118 | } | |||
2119 | ||||
2120 | do_cleanups (back_to); | |||
2121 | } | |||
2122 | ||||
2123 | /* Allocate and partially fill a partial symtab. It will be | |||
2124 | completely filled at the end of the symbol list. | |||
2125 | ||||
2126 | SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR | |||
2127 | is the address relative to which its symbols are (incremental) or 0 | |||
2128 | (normal). */ | |||
2129 | ||||
2130 | ||||
2131 | static struct partial_symtab * | |||
2132 | start_psymtab (struct objfile *objfile, char *filename, CORE_ADDR textlow, | |||
2133 | int ldsymoff, struct partial_symbol **global_syms, | |||
2134 | struct partial_symbol **static_syms) | |||
2135 | { | |||
2136 | struct partial_symtab *result = | |||
2137 | start_psymtab_common (objfile, objfile->section_offsets, | |||
2138 | filename, textlow, global_syms, static_syms); | |||
2139 | ||||
2140 | result->read_symtab_private = (char *) | |||
2141 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symloc))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct symloc))); if (__o->chunk_limit - __o-> next_free < __len) _obstack_newchunk (__o, __len); ((__o)-> next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base ; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char * ) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask )) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1-> next_free = __o1->chunk_limit; __o1->object_base = __o1 ->next_free; value; }); }); | |||
2142 | LDSYMOFF (result)(((struct symloc *)((result)->read_symtab_private))->ldsymoff ) = ldsymoff; | |||
2143 | result->read_symtab = dbx_psymtab_to_symtab; | |||
2144 | SYMBOL_SIZE (result)(((struct symloc *)((result)->read_symtab_private))->symbol_size ) = symbol_size; | |||
2145 | SYMBOL_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->symbol_offset ) = symbol_table_offset; | |||
2146 | STRING_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->string_offset ) = string_table_offset; | |||
2147 | FILE_STRING_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->file_string_offset ) = file_string_table_offset; | |||
2148 | ||||
2149 | /* If we're handling an ELF file, drag some section-relocation info | |||
2150 | for this source file out of the ELF symbol table, to compensate for | |||
2151 | Sun brain death. This replaces the section_offsets in this psymtab, | |||
2152 | if successful. */ | |||
2153 | elfstab_offset_sections (objfile, result); | |||
2154 | ||||
2155 | /* Deduce the source language from the filename for this psymtab. */ | |||
2156 | psymtab_language = deduce_language_from_filename (filename); | |||
2157 | ||||
2158 | return result; | |||
2159 | } | |||
2160 | ||||
2161 | /* Close off the current usage of PST. | |||
2162 | Returns PST or NULL if the partial symtab was empty and thrown away. | |||
2163 | ||||
2164 | FIXME: List variables and peculiarities of same. */ | |||
2165 | ||||
2166 | struct partial_symtab * | |||
2167 | end_psymtab (struct partial_symtab *pst, char **include_list, int num_includes, | |||
2168 | int capping_symbol_offset, CORE_ADDR capping_text, | |||
2169 | struct partial_symtab **dependency_list, int number_dependencies, | |||
2170 | int textlow_not_set) | |||
2171 | { | |||
2172 | int i; | |||
2173 | struct objfile *objfile = pst->objfile; | |||
2174 | ||||
2175 | if (capping_symbol_offset != -1) | |||
2176 | LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen ) = capping_symbol_offset - LDSYMOFF (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymoff ); | |||
2177 | pst->texthigh = capping_text; | |||
2178 | ||||
2179 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
2180 | /* Under Solaris, the N_SO symbols always have a value of 0, | |||
2181 | instead of the usual address of the .o file. Therefore, | |||
2182 | we have to do some tricks to fill in texthigh and textlow. | |||
2183 | The first trick is: if we see a static | |||
2184 | or global function, and the textlow for the current pst | |||
2185 | is not set (ie: textlow_not_set), then we use that function's | |||
2186 | address for the textlow of the pst. */ | |||
2187 | ||||
2188 | /* Now, to fill in texthigh, we remember the last function seen | |||
2189 | in the .o file. Also, there's a hack in | |||
2190 | bfd/elf.c and gdb/elfread.c to pass the ELF st_size field | |||
2191 | to here via the misc_info field. Therefore, we can fill in | |||
2192 | a reliable texthigh by taking the address plus size of the | |||
2193 | last function in the file. */ | |||
2194 | ||||
2195 | if (pst->texthigh == 0 && last_function_name) | |||
2196 | { | |||
2197 | char *p; | |||
2198 | int n; | |||
2199 | struct minimal_symbol *minsym; | |||
2200 | ||||
2201 | p = strchr (last_function_name, ':'); | |||
2202 | if (p == NULL((void*)0)) | |||
2203 | p = last_function_name; | |||
2204 | n = p - last_function_name; | |||
2205 | p = alloca (n + 2)__builtin_alloca(n + 2); | |||
2206 | strncpy (p, last_function_name, n); | |||
2207 | p[n] = 0; | |||
2208 | ||||
2209 | minsym = lookup_minimal_symbol (p, pst->filename, objfile); | |||
2210 | if (minsym == NULL((void*)0)) | |||
2211 | { | |||
2212 | /* Sun Fortran appends an underscore to the minimal symbol name, | |||
2213 | try again with an appended underscore if the minimal symbol | |||
2214 | was not found. */ | |||
2215 | p[n] = '_'; | |||
2216 | p[n + 1] = 0; | |||
2217 | minsym = lookup_minimal_symbol (p, pst->filename, objfile); | |||
2218 | } | |||
2219 | ||||
2220 | if (minsym) | |||
2221 | pst->texthigh = SYMBOL_VALUE_ADDRESS (minsym)(minsym)->ginfo.value.address + MSYMBOL_SIZE (minsym)(minsym)->size; | |||
2222 | ||||
2223 | last_function_name = NULL((void*)0); | |||
2224 | } | |||
2225 | ||||
2226 | /* this test will be true if the last .o file is only data */ | |||
2227 | if (textlow_not_set) | |||
2228 | pst->textlow = pst->texthigh; | |||
2229 | else | |||
2230 | { | |||
2231 | struct partial_symtab *p1; | |||
2232 | ||||
2233 | /* If we know our own starting text address, then walk through all other | |||
2234 | psymtabs for this objfile, and if any didn't know their ending text | |||
2235 | address, set it to our starting address. Take care to not set our | |||
2236 | own ending address to our starting address, nor to set addresses on | |||
2237 | `dependency' files that have both textlow and texthigh zero. */ | |||
2238 | ||||
2239 | ALL_OBJFILE_PSYMTABS (objfile, p1)for ((p1) = (objfile) -> psymtabs; (p1) != ((void*)0); (p1 ) = (p1) -> next) | |||
2240 | { | |||
2241 | if (p1->texthigh == 0 && p1->textlow != 0 && p1 != pst) | |||
2242 | { | |||
2243 | p1->texthigh = pst->textlow; | |||
2244 | /* if this file has only data, then make textlow match texthigh */ | |||
2245 | if (p1->textlow == 0) | |||
2246 | p1->textlow = p1->texthigh; | |||
2247 | } | |||
2248 | } | |||
2249 | } | |||
2250 | ||||
2251 | /* End of kludge for patching Solaris textlow and texthigh. */ | |||
2252 | #endif /* SOFUN_ADDRESS_MAYBE_MISSING. */ | |||
2253 | ||||
2254 | pst->n_global_syms = | |||
2255 | objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset); | |||
2256 | pst->n_static_syms = | |||
2257 | objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset); | |||
2258 | ||||
2259 | pst->number_of_dependencies = number_dependencies; | |||
2260 | if (number_dependencies) | |||
2261 | { | |||
2262 | pst->dependencies = (struct partial_symtab **) | |||
2263 | obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (number_dependencies * sizeof (struct partial_symtab *))); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }) ; __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask ) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1-> next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit ; __o1->object_base = __o1->next_free; value; }); }) | |||
2264 | number_dependencies * sizeof (struct partial_symtab *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (number_dependencies * sizeof (struct partial_symtab *))); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }) ; __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask ) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1-> next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit ; __o1->object_base = __o1->next_free; value; }); }); | |||
2265 | memcpy (pst->dependencies, dependency_list, | |||
2266 | number_dependencies * sizeof (struct partial_symtab *)); | |||
2267 | } | |||
2268 | else | |||
2269 | pst->dependencies = 0; | |||
2270 | ||||
2271 | for (i = 0; i < num_includes; i++) | |||
2272 | { | |||
2273 | struct partial_symtab *subpst = | |||
2274 | allocate_psymtab (include_list[i], objfile); | |||
2275 | ||||
2276 | /* Copy the sesction_offsets array from the main psymtab. */ | |||
2277 | subpst->section_offsets = pst->section_offsets; | |||
2278 | subpst->read_symtab_private = | |||
2279 | (char *) obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct symloc))); if (__o->chunk_limit - __o-> next_free < __len) _obstack_newchunk (__o, __len); ((__o)-> next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base ; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char * ) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask )) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1-> next_free = __o1->chunk_limit; __o1->object_base = __o1 ->next_free; value; }); }) | |||
2280 | sizeof (struct symloc))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct symloc))); if (__o->chunk_limit - __o-> next_free < __len) _obstack_newchunk (__o, __len); ((__o)-> next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base ; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char * ) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask )) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1-> next_free = __o1->chunk_limit; __o1->object_base = __o1 ->next_free; value; }); }); | |||
2281 | LDSYMOFF (subpst)(((struct symloc *)((subpst)->read_symtab_private))->ldsymoff ) = | |||
2282 | LDSYMLEN (subpst)(((struct symloc *)((subpst)->read_symtab_private))->ldsymlen ) = | |||
2283 | subpst->textlow = | |||
2284 | subpst->texthigh = 0; | |||
2285 | ||||
2286 | /* We could save slight bits of space by only making one of these, | |||
2287 | shared by the entire set of include files. FIXME-someday. */ | |||
2288 | subpst->dependencies = (struct partial_symtab **) | |||
2289 | obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct partial_symtab *))); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len) ; ((__o)->next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void * ) __o1->object_base; if (__o1->next_free == value) __o1 ->maybe_empty_object = 1; __o1->next_free = (((((__o1-> next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1 ->alignment_mask)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1 ->chunk) __o1->next_free = __o1->chunk_limit; __o1-> object_base = __o1->next_free; value; }); }) | |||
2290 | sizeof (struct partial_symtab *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct partial_symtab *))); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len) ; ((__o)->next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void * ) __o1->object_base; if (__o1->next_free == value) __o1 ->maybe_empty_object = 1; __o1->next_free = (((((__o1-> next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1 ->alignment_mask)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1 ->chunk) __o1->next_free = __o1->chunk_limit; __o1-> object_base = __o1->next_free; value; }); }); | |||
2291 | subpst->dependencies[0] = pst; | |||
2292 | subpst->number_of_dependencies = 1; | |||
2293 | ||||
2294 | subpst->globals_offset = | |||
2295 | subpst->n_global_syms = | |||
2296 | subpst->statics_offset = | |||
2297 | subpst->n_static_syms = 0; | |||
2298 | ||||
2299 | subpst->readin = 0; | |||
2300 | subpst->symtab = 0; | |||
2301 | subpst->read_symtab = pst->read_symtab; | |||
2302 | } | |||
2303 | ||||
2304 | sort_pst_symbols (pst); | |||
2305 | ||||
2306 | /* If there is already a psymtab or symtab for a file of this name, remove it. | |||
2307 | (If there is a symtab, more drastic things also happen.) | |||
2308 | This happens in VxWorks. */ | |||
2309 | free_named_symtabs (pst->filename); | |||
2310 | ||||
2311 | if (num_includes == 0 | |||
2312 | && number_dependencies == 0 | |||
2313 | && pst->n_global_syms == 0 | |||
2314 | && pst->n_static_syms == 0 | |||
2315 | && has_line_numbers == 0) | |||
2316 | { | |||
2317 | /* Throw away this psymtab, it's empty. We can't deallocate it, since | |||
2318 | it is on the obstack, but we can forget to chain it on the list. */ | |||
2319 | /* Empty psymtabs happen as a result of header files which don't have | |||
2320 | any symbols in them. There can be a lot of them. But this check | |||
2321 | is wrong, in that a psymtab with N_SLINE entries but nothing else | |||
2322 | is not empty, but we don't realize that. Fixing that without slowing | |||
2323 | things down might be tricky. */ | |||
2324 | ||||
2325 | discard_psymtab (pst); | |||
2326 | ||||
2327 | /* Indicate that psymtab was thrown away. */ | |||
2328 | pst = (struct partial_symtab *) NULL((void*)0); | |||
2329 | } | |||
2330 | return pst; | |||
2331 | } | |||
2332 | ||||
2333 | static void | |||
2334 | dbx_psymtab_to_symtab_1 (struct partial_symtab *pst) | |||
2335 | { | |||
2336 | struct cleanup *old_chain; | |||
2337 | int i; | |||
2338 | ||||
2339 | if (!pst) | |||
2340 | return; | |||
2341 | ||||
2342 | if (pst->readin) | |||
2343 | { | |||
2344 | fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |||
2345 | pst->filename); | |||
2346 | return; | |||
2347 | } | |||
2348 | ||||
2349 | /* Read in all partial symtabs on which this one is dependent */ | |||
2350 | for (i = 0; i < pst->number_of_dependencies; i++) | |||
2351 | if (!pst->dependencies[i]->readin) | |||
2352 | { | |||
2353 | /* Inform about additional files that need to be read in. */ | |||
2354 | if (info_verbose) | |||
2355 | { | |||
2356 | fputs_filtered (" ", gdb_stdout); | |||
2357 | wrap_here (""); | |||
2358 | fputs_filtered ("and ", gdb_stdout); | |||
2359 | wrap_here (""); | |||
2360 | printf_filtered ("%s...", pst->dependencies[i]->filename); | |||
2361 | wrap_here (""); /* Flush output */ | |||
2362 | gdb_flush (gdb_stdout); | |||
2363 | } | |||
2364 | dbx_psymtab_to_symtab_1 (pst->dependencies[i]); | |||
2365 | } | |||
2366 | ||||
2367 | if (LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen )) /* Otherwise it's a dummy */ | |||
2368 | { | |||
2369 | /* Init stuff necessary for reading in symbols */ | |||
2370 | stabsread_init (); | |||
2371 | buildsym_init (); | |||
2372 | old_chain = make_cleanup (really_free_pendings, 0); | |||
2373 | file_string_table_offset = FILE_STRING_OFFSET (pst)(((struct symloc *)((pst)->read_symtab_private))->file_string_offset ); | |||
2374 | symbol_size = SYMBOL_SIZE (pst)(((struct symloc *)((pst)->read_symtab_private))->symbol_size ); | |||
2375 | ||||
2376 | /* Read in this file's symbols */ | |||
2377 | bfd_seek (pst->objfile->obfd, SYMBOL_OFFSET (pst)(((struct symloc *)((pst)->read_symtab_private))->symbol_offset ), SEEK_SET0); | |||
2378 | read_ofile_symtab (pst); | |||
2379 | ||||
2380 | do_cleanups (old_chain); | |||
2381 | } | |||
2382 | ||||
2383 | pst->readin = 1; | |||
2384 | } | |||
2385 | ||||
2386 | /* Read in all of the symbols for a given psymtab for real. | |||
2387 | Be verbose about it if the user wants that. */ | |||
2388 | ||||
2389 | static void | |||
2390 | dbx_psymtab_to_symtab (struct partial_symtab *pst) | |||
2391 | { | |||
2392 | bfd *sym_bfd; | |||
2393 | struct cleanup *back_to = NULL((void*)0); | |||
2394 | ||||
2395 | if (!pst) | |||
2396 | return; | |||
2397 | ||||
2398 | if (pst->readin) | |||
2399 | { | |||
2400 | fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |||
2401 | pst->filename); | |||
2402 | return; | |||
2403 | } | |||
2404 | ||||
2405 | if (LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen ) || pst->number_of_dependencies) | |||
2406 | { | |||
2407 | /* Print the message now, before reading the string table, | |||
2408 | to avoid disconcerting pauses. */ | |||
2409 | if (info_verbose) | |||
2410 | { | |||
2411 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |||
2412 | gdb_flush (gdb_stdout); | |||
2413 | } | |||
2414 | ||||
2415 | sym_bfd = pst->objfile->obfd; | |||
2416 | ||||
2417 | next_symbol_text_func = dbx_next_symbol_text; | |||
2418 | ||||
2419 | if (DBX_STAB_SECTION (pst->objfile)(((pst->objfile)->sym_stab_info)->stab_section)) | |||
2420 | { | |||
2421 | stabs_data | |||
2422 | = symfile_relocate_debug_section (pst->objfile->obfd, | |||
2423 | DBX_STAB_SECTION (pst->objfile)(((pst->objfile)->sym_stab_info)->stab_section), | |||
2424 | NULL((void*)0)); | |||
2425 | if (stabs_data) | |||
2426 | back_to = make_cleanup (free_current_contents, (void *) &stabs_data); | |||
2427 | } | |||
2428 | ||||
2429 | dbx_psymtab_to_symtab_1 (pst); | |||
2430 | ||||
2431 | if (back_to) | |||
2432 | do_cleanups (back_to); | |||
2433 | ||||
2434 | /* Match with global symbols. This only needs to be done once, | |||
2435 | after all of the symtabs and dependencies have been read in. */ | |||
2436 | scan_file_globals (pst->objfile); | |||
2437 | ||||
2438 | /* Finish up the debug error message. */ | |||
2439 | if (info_verbose) | |||
2440 | printf_filtered ("done.\n"); | |||
2441 | } | |||
2442 | } | |||
2443 | ||||
2444 | /* Read in a defined section of a specific object file's symbols. */ | |||
2445 | ||||
2446 | static void | |||
2447 | read_ofile_symtab (struct partial_symtab *pst) | |||
2448 | { | |||
2449 | char *namestring; | |||
2450 | struct external_nlist *bufp; | |||
2451 | struct internal_nlist nlist; | |||
2452 | unsigned char type; | |||
2453 | unsigned max_symnum; | |||
2454 | bfd *abfd; | |||
2455 | struct objfile *objfile; | |||
2456 | int sym_offset; /* Offset to start of symbols to read */ | |||
2457 | int sym_size; /* Size of symbols to read */ | |||
2458 | CORE_ADDR text_offset; /* Start of text segment for symbols */ | |||
2459 | int text_size; /* Size of text segment for symbols */ | |||
2460 | struct section_offsets *section_offsets; | |||
2461 | ||||
2462 | objfile = pst->objfile; | |||
2463 | sym_offset = LDSYMOFF (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymoff ); | |||
2464 | sym_size = LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen ); | |||
2465 | text_offset = pst->textlow; | |||
2466 | text_size = pst->texthigh - pst->textlow; | |||
2467 | /* This cannot be simply objfile->section_offsets because of | |||
2468 | elfstab_offset_sections() which initializes the psymtab section | |||
2469 | offsets information in a special way, and that is different from | |||
2470 | objfile->section_offsets. */ | |||
2471 | section_offsets = pst->section_offsets; | |||
2472 | ||||
2473 | current_objfile = objfile; | |||
2474 | subfile_stack = NULL((void*)0); | |||
2475 | ||||
2476 | stringtab_global = DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab); | |||
2477 | last_source_file = NULL((void*)0); | |||
2478 | ||||
2479 | abfd = objfile->obfd; | |||
2480 | symfile_bfd = objfile->obfd; /* Implicit param to next_text_symbol */ | |||
2481 | symbuf_end = symbuf_idx = 0; | |||
2482 | symbuf_read = 0; | |||
2483 | symbuf_left = sym_offset + sym_size; | |||
2484 | ||||
2485 | /* It is necessary to actually read one symbol *before* the start | |||
2486 | of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL | |||
2487 | occurs before the N_SO symbol. | |||
2488 | ||||
2489 | Detecting this in read_dbx_symtab | |||
2490 | would slow down initial readin, so we look for it here instead. */ | |||
2491 | if (!processing_acc_compilation && sym_offset >= (int) symbol_size) | |||
2492 | { | |||
2493 | stabs_seek (sym_offset - symbol_size); | |||
2494 | fill_symbuf (abfd); | |||
2495 | bufp = &symbuf[symbuf_idx++]; | |||
2496 | INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) & 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32 )) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec ->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32 )) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)-> xvec->bfd_h_getx32)) ((bufp)->e_value)); }; | |||
2497 | OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++); | |||
2498 | ||||
2499 | namestring = set_namestring (objfile, nlist); | |||
2500 | ||||
2501 | processing_gcc_compilation = 0; | |||
2502 | if (nlist.n_type == N_TEXT4) | |||
2503 | { | |||
2504 | const char *tempstring = namestring; | |||
2505 | ||||
2506 | if (DEPRECATED_STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc_compiled.")) == 0)) | |||
2507 | processing_gcc_compilation = 1; | |||
2508 | else if (DEPRECATED_STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc2_compiled.")) == 0)) | |||
2509 | processing_gcc_compilation = 2; | |||
2510 | if (tempstring[0] == bfd_get_symbol_leading_char (symfile_bfd)((symfile_bfd)->xvec->symbol_leading_char)) | |||
2511 | ++tempstring; | |||
2512 | if (DEPRECATED_STREQN (tempstring, "__gnu_compiled", 14)(strncmp ((tempstring), ("__gnu_compiled"), (14)) == 0)) | |||
2513 | processing_gcc_compilation = 2; | |||
2514 | } | |||
2515 | ||||
2516 | /* Try to select a C++ demangling based on the compilation unit | |||
2517 | producer. */ | |||
2518 | ||||
2519 | #if 0 | |||
2520 | /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't | |||
2521 | know whether it will use the old style or v3 mangling. */ | |||
2522 | if (processing_gcc_compilation) | |||
2523 | { | |||
2524 | if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8))) | |||
2525 | { | |||
2526 | set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu"); | |||
2527 | } | |||
2528 | } | |||
2529 | #endif | |||
2530 | } | |||
2531 | else | |||
2532 | { | |||
2533 | /* The N_SO starting this symtab is the first symbol, so we | |||
2534 | better not check the symbol before it. I'm not this can | |||
2535 | happen, but it doesn't hurt to check for it. */ | |||
2536 | stabs_seek (sym_offset); | |||
2537 | processing_gcc_compilation = 0; | |||
2538 | } | |||
2539 | ||||
2540 | if (symbuf_idx == symbuf_end) | |||
2541 | fill_symbuf (abfd); | |||
2542 | bufp = &symbuf[symbuf_idx]; | |||
2543 | if (bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff) != N_SO) | |||
2544 | error ("First symbol in segment of executable not a source symbol"); | |||
2545 | ||||
2546 | max_symnum = sym_size / symbol_size; | |||
2547 | ||||
2548 | for (symnum = 0; | |||
2549 | symnum < max_symnum; | |||
2550 | symnum++) | |||
2551 | { | |||
2552 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* Allow this to be interruptable */ | |||
2553 | if (symbuf_idx == symbuf_end) | |||
2554 | fill_symbuf (abfd); | |||
2555 | bufp = &symbuf[symbuf_idx++]; | |||
2556 | INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) & 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32 )) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec ->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32 )) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)-> xvec->bfd_h_getx32)) ((bufp)->e_value)); }; | |||
2557 | OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++); | |||
2558 | ||||
2559 | type = bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff); | |||
2560 | ||||
2561 | namestring = set_namestring (objfile, nlist); | |||
2562 | ||||
2563 | if (type & N_STAB0xe0) | |||
2564 | { | |||
2565 | process_one_symbol (type, nlist.n_desc, nlist.n_value, | |||
2566 | namestring, section_offsets, objfile); | |||
2567 | } | |||
2568 | /* We skip checking for a new .o or -l file; that should never | |||
2569 | happen in this routine. */ | |||
2570 | else if (type == N_TEXT4) | |||
2571 | { | |||
2572 | /* I don't think this code will ever be executed, because | |||
2573 | the GCC_COMPILED_FLAG_SYMBOL usually is right before | |||
2574 | the N_SO symbol which starts this source file. | |||
2575 | However, there is no reason not to accept | |||
2576 | the GCC_COMPILED_FLAG_SYMBOL anywhere. */ | |||
2577 | ||||
2578 | if (DEPRECATED_STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc_compiled.")) == 0)) | |||
2579 | processing_gcc_compilation = 1; | |||
2580 | else if (DEPRECATED_STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc2_compiled.")) == 0)) | |||
2581 | processing_gcc_compilation = 2; | |||
2582 | ||||
2583 | #if 0 | |||
2584 | /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't | |||
2585 | know whether it will use the old style or v3 mangling. */ | |||
2586 | if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8))) | |||
2587 | { | |||
2588 | set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu"); | |||
2589 | } | |||
2590 | #endif | |||
2591 | } | |||
2592 | else if (type & N_EXT1 || type == (unsigned char) N_TEXT4 | |||
2593 | || type == (unsigned char) N_NBTEXT | |||
2594 | ) | |||
2595 | { | |||
2596 | /* Global symbol: see if we came across a dbx defintion for | |||
2597 | a corresponding symbol. If so, store the value. Remove | |||
2598 | syms from the chain when their values are stored, but | |||
2599 | search the whole chain, as there may be several syms from | |||
2600 | different files with the same name. */ | |||
2601 | /* This is probably not true. Since the files will be read | |||
2602 | in one at a time, each reference to a global symbol will | |||
2603 | be satisfied in each file as it appears. So we skip this | |||
2604 | section. */ | |||
2605 | ; | |||
2606 | } | |||
2607 | } | |||
2608 | ||||
2609 | current_objfile = NULL((void*)0); | |||
2610 | ||||
2611 | /* In a Solaris elf file, this variable, which comes from the | |||
2612 | value of the N_SO symbol, will still be 0. Luckily, text_offset, | |||
2613 | which comes from pst->textlow is correct. */ | |||
2614 | if (last_source_start_addr == 0) | |||
2615 | last_source_start_addr = text_offset; | |||
2616 | ||||
2617 | /* In reordered executables last_source_start_addr may not be the | |||
2618 | lower bound for this symtab, instead use text_offset which comes | |||
2619 | from pst->textlow which is correct. */ | |||
2620 | if (last_source_start_addr > text_offset) | |||
2621 | last_source_start_addr = text_offset; | |||
2622 | ||||
2623 | pst->symtab = end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2623, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)); | |||
2624 | ||||
2625 | end_stabs (); | |||
2626 | } | |||
2627 | ||||
2628 | ||||
2629 | /* This handles a single symbol from the symbol-file, building symbols | |||
2630 | into a GDB symtab. It takes these arguments and an implicit argument. | |||
2631 | ||||
2632 | TYPE is the type field of the ".stab" symbol entry. | |||
2633 | DESC is the desc field of the ".stab" entry. | |||
2634 | VALU is the value field of the ".stab" entry. | |||
2635 | NAME is the symbol name, in our address space. | |||
2636 | SECTION_OFFSETS is a set of amounts by which the sections of this object | |||
2637 | file were relocated when it was loaded into memory. | |||
2638 | Note that these section_offsets are not the | |||
2639 | objfile->section_offsets but the pst->section_offsets. | |||
2640 | All symbols that refer | |||
2641 | to memory locations need to be offset by these amounts. | |||
2642 | OBJFILE is the object file from which we are reading symbols. | |||
2643 | It is used in end_symtab. */ | |||
2644 | ||||
2645 | void | |||
2646 | process_one_symbol (int type, int desc, CORE_ADDR valu, char *name, | |||
2647 | struct section_offsets *section_offsets, | |||
2648 | struct objfile *objfile) | |||
2649 | { | |||
2650 | struct context_stack *new; | |||
2651 | /* This remembers the address of the start of a function. It is used | |||
2652 | because in Solaris 2, N_LBRAC, N_RBRAC, and N_SLINE entries are | |||
2653 | relative to the current function's start address. On systems | |||
2654 | other than Solaris 2, this just holds the SECT_OFF_TEXT value, and is | |||
2655 | used to relocate these symbol types rather than SECTION_OFFSETS. */ | |||
2656 | static CORE_ADDR function_start_offset; | |||
2657 | ||||
2658 | /* This holds the address of the start of a function, without the system | |||
2659 | peculiarities of function_start_offset. */ | |||
2660 | static CORE_ADDR last_function_start; | |||
2661 | ||||
2662 | /* If this is nonzero, we've seen an N_SLINE since the start of the | |||
2663 | current function. We use this to tell us to move the first sline | |||
2664 | to the beginning of the function regardless of what its given | |||
2665 | value is. */ | |||
2666 | static int sline_found_in_function = 1; | |||
2667 | ||||
2668 | /* If this is nonzero, we've seen a non-gcc N_OPT symbol for this source | |||
2669 | file. Used to detect the SunPRO solaris compiler. */ | |||
2670 | static int n_opt_found; | |||
2671 | ||||
2672 | /* The stab type used for the definition of the last function. | |||
2673 | N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */ | |||
2674 | static int function_stab_type = 0; | |||
2675 | ||||
2676 | if (!block_address_function_relative) | |||
| ||||
2677 | /* N_LBRAC, N_RBRAC and N_SLINE entries are not relative to the | |||
2678 | function start address, so just use the text offset. */ | |||
2679 | function_start_offset = ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2679, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2679, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2679, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2680 | ||||
2681 | /* Something is wrong if we see real data before | |||
2682 | seeing a source file name. */ | |||
2683 | ||||
2684 | if (last_source_file == NULL((void*)0) && type != (unsigned char) N_SO) | |||
2685 | { | |||
2686 | /* Ignore any symbols which appear before an N_SO symbol. | |||
2687 | Currently no one puts symbols there, but we should deal | |||
2688 | gracefully with the case. A complain()t might be in order, | |||
2689 | but this should not be an error (). */ | |||
2690 | return; | |||
2691 | } | |||
2692 | ||||
2693 | switch (type) | |||
2694 | { | |||
2695 | case N_FUN: | |||
2696 | case N_FNAME: | |||
2697 | ||||
2698 | if (*name == '\000') | |||
2699 | { | |||
2700 | /* This N_FUN marks the end of a function. This closes off the | |||
2701 | current block. */ | |||
2702 | ||||
2703 | if (context_stack_depth <= 0) | |||
2704 | { | |||
2705 | lbrac_mismatch_complaint (symnum); | |||
2706 | break; | |||
2707 | } | |||
2708 | ||||
2709 | /* The following check is added before recording line 0 at | |||
2710 | end of function so as to handle hand-generated stabs | |||
2711 | which may have an N_FUN stabs at the end of the function, but | |||
2712 | no N_SLINE stabs. */ | |||
2713 | if (sline_found_in_function) | |||
2714 | record_line (current_subfile, 0, last_function_start + valu); | |||
2715 | ||||
2716 | within_function = 0; | |||
2717 | new = pop_context (); | |||
2718 | ||||
2719 | /* Make a block for the local symbols within. */ | |||
2720 | finish_block (new->name, &local_symbols, new->old_blocks, | |||
2721 | new->start_addr, new->start_addr + valu, | |||
2722 | objfile); | |||
2723 | ||||
2724 | /* May be switching to an assembler file which may not be using | |||
2725 | block relative stabs, so reset the offset. */ | |||
2726 | if (block_address_function_relative) | |||
2727 | function_start_offset = 0; | |||
2728 | ||||
2729 | break; | |||
2730 | } | |||
2731 | ||||
2732 | sline_found_in_function = 0; | |||
2733 | ||||
2734 | /* Relocate for dynamic loading */ | |||
2735 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2735, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2735, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2735, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2736 | valu = SMASH_TEXT_ADDRESS (valu)(gdbarch_smash_text_address (current_gdbarch, valu)); | |||
2737 | last_function_start = valu; | |||
2738 | ||||
2739 | goto define_a_symbol; | |||
2740 | ||||
2741 | case N_LBRAC: | |||
2742 | /* This "symbol" just indicates the start of an inner lexical | |||
2743 | context within a function. */ | |||
2744 | ||||
2745 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |||
2746 | if (n_opt_found && desc == 1) | |||
2747 | break; | |||
2748 | ||||
2749 | if (block_address_function_relative) | |||
2750 | /* Relocate for Sun ELF acc fn-relative syms. */ | |||
2751 | valu += function_start_offset; | |||
2752 | else | |||
2753 | /* On most machines, the block addresses are relative to the | |||
2754 | N_SO, the linker did not relocate them (sigh). */ | |||
2755 | valu += last_source_start_addr; | |||
2756 | ||||
2757 | new = push_context (desc, valu); | |||
2758 | break; | |||
2759 | ||||
2760 | case N_RBRAC: | |||
2761 | /* This "symbol" just indicates the end of an inner lexical | |||
2762 | context that was started with N_LBRAC. */ | |||
2763 | ||||
2764 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |||
2765 | if (n_opt_found && desc == 1) | |||
2766 | break; | |||
2767 | ||||
2768 | if (block_address_function_relative) | |||
2769 | /* Relocate for Sun ELF acc fn-relative syms. */ | |||
2770 | valu += function_start_offset; | |||
2771 | else | |||
2772 | /* On most machines, the block addresses are relative to the | |||
2773 | N_SO, the linker did not relocate them (sigh). */ | |||
2774 | valu += last_source_start_addr; | |||
2775 | ||||
2776 | if (context_stack_depth <= 0) | |||
2777 | { | |||
2778 | lbrac_mismatch_complaint (symnum); | |||
2779 | break; | |||
2780 | } | |||
2781 | ||||
2782 | new = pop_context (); | |||
2783 | if (desc != new->depth) | |||
2784 | lbrac_mismatch_complaint (symnum); | |||
2785 | ||||
2786 | /* Some compilers put the variable decls inside of an | |||
2787 | LBRAC/RBRAC block. This macro should be nonzero if this | |||
2788 | is true. DESC is N_DESC from the N_RBRAC symbol. | |||
2789 | GCC_P is true if we've detected the GCC_COMPILED_SYMBOL | |||
2790 | or the GCC2_COMPILED_SYMBOL. */ | |||
2791 | #if !defined (VARIABLES_INSIDE_BLOCK) | |||
2792 | #define VARIABLES_INSIDE_BLOCK(desc, gcc_p)0 0 | |||
2793 | #endif | |||
2794 | ||||
2795 | /* Can only use new->locals as local symbols here if we're in | |||
2796 | gcc or on a machine that puts them before the lbrack. */ | |||
2797 | if (!VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0) | |||
2798 | { | |||
2799 | if (local_symbols != NULL((void*)0)) | |||
2800 | { | |||
2801 | /* GCC development snapshots from March to December of | |||
2802 | 2000 would output N_LSYM entries after N_LBRAC | |||
2803 | entries. As a consequence, these symbols are simply | |||
2804 | discarded. Complain if this is the case. Note that | |||
2805 | there are some compilers which legitimately put local | |||
2806 | symbols within an LBRAC/RBRAC block; this complaint | |||
2807 | might also help sort out problems in which | |||
2808 | VARIABLES_INSIDE_BLOCK is incorrectly defined. */ | |||
2809 | complaint (&symfile_complaints, | |||
2810 | "misplaced N_LBRAC entry; discarding local symbols which have no enclosing block"); | |||
2811 | } | |||
2812 | local_symbols = new->locals; | |||
2813 | } | |||
2814 | ||||
2815 | if (context_stack_depth | |||
2816 | > !VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0) | |||
2817 | { | |||
2818 | /* This is not the outermost LBRAC...RBRAC pair in the function, | |||
2819 | its local symbols preceded it, and are the ones just recovered | |||
2820 | from the context stack. Define the block for them (but don't | |||
2821 | bother if the block contains no symbols. Should we complain | |||
2822 | on blocks without symbols? I can't think of any useful purpose | |||
2823 | for them). */ | |||
2824 | if (local_symbols != NULL((void*)0)) | |||
2825 | { | |||
2826 | /* Muzzle a compiler bug that makes end < start. (which | |||
2827 | compilers? Is this ever harmful?). */ | |||
2828 | if (new->start_addr > valu) | |||
2829 | { | |||
2830 | complaint (&symfile_complaints, | |||
2831 | "block start larger than block end"); | |||
2832 | new->start_addr = valu; | |||
2833 | } | |||
2834 | /* Make a block for the local symbols within. */ | |||
2835 | finish_block (0, &local_symbols, new->old_blocks, | |||
2836 | new->start_addr, valu, objfile); | |||
2837 | } | |||
2838 | } | |||
2839 | else | |||
2840 | { | |||
2841 | /* This is the outermost LBRAC...RBRAC pair. There is no | |||
2842 | need to do anything; leave the symbols that preceded it | |||
2843 | to be attached to the function's own block. We need to | |||
2844 | indicate that we just moved outside of the function. */ | |||
2845 | within_function = 0; | |||
2846 | } | |||
2847 | ||||
2848 | if (VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0) | |||
2849 | /* Now pop locals of block just finished. */ | |||
2850 | local_symbols = new->locals; | |||
2851 | break; | |||
2852 | ||||
2853 | case N_FN0x1f: | |||
2854 | case N_FN_SEQ0x0C: | |||
2855 | /* This kind of symbol indicates the start of an object file. */ | |||
2856 | /* Relocate for dynamic loading */ | |||
2857 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2857, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2857, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2857, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2858 | break; | |||
2859 | ||||
2860 | case N_SO: | |||
2861 | /* This type of symbol indicates the start of data | |||
2862 | for one source file. | |||
2863 | Finish the symbol table of the previous source file | |||
2864 | (if any) and start accumulating a new symbol table. */ | |||
2865 | /* Relocate for dynamic loading */ | |||
2866 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2866, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2866, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2866, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2867 | ||||
2868 | n_opt_found = 0; | |||
2869 | ||||
2870 | if (last_source_file) | |||
2871 | { | |||
2872 | /* Check if previous symbol was also an N_SO (with some | |||
2873 | sanity checks). If so, that one was actually the directory | |||
2874 | name, and the current one is the real file name. | |||
2875 | Patch things up. */ | |||
2876 | if (previous_stab_code == (unsigned char) N_SO) | |||
2877 | { | |||
2878 | patch_subfile_names (current_subfile, name); | |||
2879 | break; /* Ignore repeated SOs */ | |||
2880 | } | |||
2881 | end_symtab (valu, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2881, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)); | |||
2882 | end_stabs (); | |||
2883 | } | |||
2884 | ||||
2885 | /* Null name means this just marks the end of text for this .o file. | |||
2886 | Don't start a new symtab in this case. */ | |||
2887 | if (*name == '\000') | |||
2888 | break; | |||
2889 | ||||
2890 | if (block_address_function_relative) | |||
2891 | function_start_offset = 0; | |||
2892 | ||||
2893 | start_stabs (); | |||
2894 | start_symtab (name, NULL((void*)0), valu); | |||
2895 | record_debugformat ("stabs"); | |||
2896 | break; | |||
2897 | ||||
2898 | case N_SOL: | |||
2899 | /* This type of symbol indicates the start of data for | |||
2900 | a sub-source-file, one whose contents were copied or | |||
2901 | included in the compilation of the main source file | |||
2902 | (whose name was given in the N_SO symbol.) */ | |||
2903 | /* Relocate for dynamic loading */ | |||
2904 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2904, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2904, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2904, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2905 | start_subfile (name, current_subfile->dirname); | |||
2906 | break; | |||
2907 | ||||
2908 | case N_BINCL: | |||
2909 | push_subfile (); | |||
2910 | add_new_header_file (name, valu); | |||
2911 | start_subfile (name, current_subfile->dirname); | |||
2912 | break; | |||
2913 | ||||
2914 | case N_EINCL: | |||
2915 | start_subfile (pop_subfile (), current_subfile->dirname); | |||
2916 | break; | |||
2917 | ||||
2918 | case N_EXCL: | |||
2919 | add_old_header_file (name, valu); | |||
2920 | break; | |||
2921 | ||||
2922 | case N_SLINE: | |||
2923 | /* This type of "symbol" really just records | |||
2924 | one line-number -- core-address correspondence. | |||
2925 | Enter it in the line list for this symbol table. */ | |||
2926 | ||||
2927 | /* Relocate for dynamic loading and for ELF acc fn-relative syms. */ | |||
2928 | valu += function_start_offset; | |||
2929 | ||||
2930 | /* If this is the first SLINE note in the function, record it at | |||
2931 | the start of the function instead of at the listed location. */ | |||
2932 | if (within_function && sline_found_in_function == 0) | |||
2933 | { | |||
2934 | record_line (current_subfile, desc, last_function_start); | |||
2935 | sline_found_in_function = 1; | |||
2936 | } | |||
2937 | else | |||
2938 | record_line (current_subfile, desc, valu); | |||
2939 | break; | |||
2940 | ||||
2941 | case N_BCOMM: | |||
2942 | common_block_start (name, objfile); | |||
2943 | break; | |||
2944 | ||||
2945 | case N_ECOMM: | |||
2946 | common_block_end (objfile); | |||
2947 | break; | |||
2948 | ||||
2949 | /* The following symbol types need to have the appropriate offset added | |||
2950 | to their value; then we process symbol definitions in the name. */ | |||
2951 | ||||
2952 | case N_STSYM: /* Static symbol in data seg */ | |||
2953 | case N_LCSYM: /* Static symbol in BSS seg */ | |||
2954 | case N_ROSYM: /* Static symbol in Read-only data seg */ | |||
2955 | /* HORRID HACK DEPT. However, it's Sun's furgin' fault. | |||
2956 | Solaris2's stabs-in-elf makes *most* symbols relative | |||
2957 | but leaves a few absolute (at least for Solaris 2.1 and version | |||
2958 | 2.0.1 of the SunPRO compiler). N_STSYM and friends sit on the fence. | |||
2959 | .stab "foo:S...",N_STSYM is absolute (ld relocates it) | |||
2960 | .stab "foo:V...",N_STSYM is relative (section base subtracted). | |||
2961 | This leaves us no choice but to search for the 'S' or 'V'... | |||
2962 | (or pass the whole section_offsets stuff down ONE MORE function | |||
2963 | call level, which we really don't want to do). */ | |||
2964 | { | |||
2965 | char *p; | |||
2966 | ||||
2967 | /* .o files and NLMs have non-zero text seg offsets, but don't need | |||
2968 | their static syms offset in this fashion. XXX - This is really a | |||
2969 | crock that should be fixed in the solib handling code so that I | |||
2970 | don't have to work around it here. */ | |||
2971 | ||||
2972 | if (!symfile_relocatable) | |||
2973 | { | |||
2974 | p = strchr (name, ':'); | |||
2975 | if (p != 0 && p[1] == 'S') | |||
2976 | { | |||
2977 | /* The linker relocated it. We don't want to add an | |||
2978 | elfstab_offset_sections-type offset, but we *do* want | |||
2979 | to add whatever solib.c passed to symbol_file_add as | |||
2980 | addr (this is known to affect SunOS4, and I suspect ELF | |||
2981 | too). Since elfstab_offset_sections currently does not | |||
2982 | muck with the text offset (there is no Ttext.text | |||
2983 | symbol), we can get addr from the text offset. If | |||
2984 | elfstab_offset_sections ever starts dealing with the | |||
2985 | text offset, and we still need to do this, we need to | |||
2986 | invent a SECT_OFF_ADDR_KLUDGE or something. */ | |||
2987 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2987, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 2987, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2987, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
2988 | goto define_a_symbol; | |||
2989 | } | |||
2990 | } | |||
2991 | /* Since it's not the kludge case, re-dispatch to the right handler. */ | |||
2992 | switch (type) | |||
2993 | { | |||
2994 | case N_STSYM: | |||
2995 | goto case_N_STSYM; | |||
2996 | case N_LCSYM: | |||
2997 | goto case_N_LCSYM; | |||
2998 | case N_ROSYM: | |||
2999 | goto case_N_ROSYM; | |||
3000 | default: | |||
3001 | internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", __LINE__3001, "failed internal consistency check"); | |||
3002 | } | |||
3003 | } | |||
3004 | ||||
3005 | case_N_STSYM: /* Static symbol in data seg */ | |||
3006 | case N_DSLINE: /* Source line number, data seg */ | |||
3007 | valu += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3007, "sect_index_data not initialized"), -1) : objfile-> sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3007, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3007, "sect_index_data not initialized" ), -1) : objfile->sect_index_data)]); | |||
3008 | goto define_a_symbol; | |||
3009 | ||||
3010 | case_N_LCSYM: /* Static symbol in BSS seg */ | |||
3011 | case N_BSLINE: /* Source line number, bss seg */ | |||
3012 | /* N_BROWS: overlaps with N_BSLINE */ | |||
3013 | valu += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3013, "Section index is uninitialized"), -1) : section_offsets ->offsets[(objfile)->sect_index_bss]); | |||
3014 | goto define_a_symbol; | |||
3015 | ||||
3016 | case_N_ROSYM: /* Static symbol in Read-only data seg */ | |||
3017 | valu += ANOFFSET (section_offsets, SECT_OFF_RODATA (objfile))((((objfile->sect_index_rodata == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3017, "sect_index_rodata not initialized"), -1) : objfile-> sect_index_rodata) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3017, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_rodata == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3017, "sect_index_rodata not initialized" ), -1) : objfile->sect_index_rodata)]); | |||
3018 | goto define_a_symbol; | |||
3019 | ||||
3020 | case N_ENTRY: /* Alternate entry point */ | |||
3021 | /* Relocate for dynamic loading */ | |||
3022 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3022, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3022, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3022, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
3023 | goto define_a_symbol; | |||
3024 | ||||
3025 | /* The following symbol types we don't know how to process. Handle | |||
3026 | them in a "default" way, but complain to people who care. */ | |||
3027 | default: | |||
3028 | case N_CATCH: /* Exception handler catcher */ | |||
3029 | case N_EHDECL: /* Exception handler name */ | |||
3030 | case N_PC: /* Global symbol in Pascal */ | |||
3031 | case N_M2C: /* Modula-2 compilation unit */ | |||
3032 | /* N_MOD2: overlaps with N_EHDECL */ | |||
3033 | case N_SCOPE: /* Modula-2 scope information */ | |||
3034 | case N_ECOML: /* End common (local name) */ | |||
3035 | case N_NBTEXT: /* Gould Non-Base-Register symbols??? */ | |||
3036 | case N_NBDATA: | |||
3037 | case N_NBBSS: | |||
3038 | case N_NBSTS: | |||
3039 | case N_NBLCS: | |||
3040 | unknown_symtype_complaint (hex_string (type)); | |||
3041 | /* FALLTHROUGH */ | |||
3042 | ||||
3043 | /* The following symbol types don't need the address field relocated, | |||
3044 | since it is either unused, or is absolute. */ | |||
3045 | define_a_symbol: | |||
3046 | case N_GSYM: /* Global variable */ | |||
3047 | case N_NSYMS: /* Number of symbols (ultrix) */ | |||
3048 | case N_NOMAP: /* No map? (ultrix) */ | |||
3049 | case N_RSYM: /* Register variable */ | |||
3050 | case N_DEFD: /* Modula-2 GNU module dependency */ | |||
3051 | case N_SSYM: /* Struct or union element */ | |||
3052 | case N_LSYM: /* Local symbol in stack */ | |||
3053 | case N_PSYM: /* Parameter variable */ | |||
3054 | case N_LENG: /* Length of preceding symbol type */ | |||
3055 | if (name) | |||
3056 | { | |||
3057 | int deftype; | |||
3058 | char *colon_pos = strchr (name, ':'); | |||
3059 | if (colon_pos == NULL((void*)0)) | |||
3060 | deftype = '\0'; | |||
3061 | else | |||
3062 | deftype = colon_pos[1]; | |||
3063 | ||||
3064 | switch (deftype) | |||
3065 | { | |||
3066 | case 'f': | |||
3067 | case 'F': | |||
3068 | function_stab_type = type; | |||
3069 | ||||
3070 | #ifdef SOFUN_ADDRESS_MAYBE_MISSING | |||
3071 | /* Deal with the SunPRO 3.0 compiler which omits the address | |||
3072 | from N_FUN symbols. */ | |||
3073 | if (type == N_FUN | |||
3074 | && valu == ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3074, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c" , 3074, "Section index is uninitialized"), -1) : section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3074, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)])) | |||
3075 | { | |||
3076 | CORE_ADDR minsym_valu = | |||
3077 | find_stab_function_addr (name, last_source_file, objfile); | |||
3078 | ||||
3079 | /* find_stab_function_addr will return 0 if the minimal | |||
3080 | symbol wasn't found. (Unfortunately, this might also | |||
3081 | be a valid address.) Anyway, if it *does* return 0, | |||
3082 | it is likely that the value was set correctly to begin | |||
3083 | with... */ | |||
3084 | if (minsym_valu != 0) | |||
3085 | valu = minsym_valu; | |||
3086 | } | |||
3087 | #endif | |||
3088 | ||||
3089 | if (block_address_function_relative) | |||
3090 | /* For Solaris 2.0 compilers, the block addresses and | |||
3091 | N_SLINE's are relative to the start of the | |||
3092 | function. On normal systems, and when using gcc on | |||
3093 | Solaris 2.0, these addresses are just absolute, or | |||
3094 | relative to the N_SO, depending on | |||
3095 | BLOCK_ADDRESS_ABSOLUTE. */ | |||
3096 | function_start_offset = valu; | |||
3097 | ||||
3098 | within_function = 1; | |||
3099 | ||||
3100 | if (context_stack_depth > 1) | |||
3101 | { | |||
3102 | complaint (&symfile_complaints, | |||
3103 | "unmatched N_LBRAC before symtab pos %d", symnum); | |||
3104 | break; | |||
3105 | } | |||
3106 | ||||
3107 | if (context_stack_depth > 0) | |||
3108 | { | |||
3109 | new = pop_context (); | |||
3110 | /* Make a block for the local symbols within. */ | |||
3111 | finish_block (new->name, &local_symbols, new->old_blocks, | |||
3112 | new->start_addr, valu, objfile); | |||
3113 | } | |||
3114 | ||||
3115 | new = push_context (0, valu); | |||
3116 | new->name = define_symbol (valu, name, desc, type, objfile); | |||
3117 | break; | |||
3118 | ||||
3119 | default: | |||
3120 | define_symbol (valu, name, desc, type, objfile); | |||
3121 | break; | |||
3122 | } | |||
3123 | } | |||
3124 | break; | |||
3125 | ||||
3126 | /* We use N_OPT to carry the gcc2_compiled flag. Sun uses it | |||
3127 | for a bunch of other flags, too. Someday we may parse their | |||
3128 | flags; for now we ignore theirs and hope they'll ignore ours. */ | |||
3129 | case N_OPT: /* Solaris 2: Compiler options */ | |||
3130 | if (name) | |||
3131 | { | |||
3132 | if (strcmp (name, GCC2_COMPILED_FLAG_SYMBOL"gcc2_compiled.") == 0) | |||
3133 | { | |||
3134 | processing_gcc_compilation = 2; | |||
3135 | #if 0 /* Works, but is experimental. -fnf */ | |||
3136 | /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't | |||
3137 | know whether it will use the old style or v3 mangling. */ | |||
3138 | if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8))) | |||
3139 | { | |||
3140 | set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu"); | |||
3141 | } | |||
3142 | #endif | |||
3143 | } | |||
3144 | else | |||
3145 | n_opt_found = 1; | |||
3146 | } | |||
3147 | break; | |||
3148 | ||||
3149 | case N_MAIN: /* Name of main routine. */ | |||
3150 | /* FIXME: If one has a symbol file with N_MAIN and then replaces | |||
3151 | it with a symbol file with "main" and without N_MAIN. I'm | |||
3152 | not sure exactly what rule to follow but probably something | |||
3153 | like: N_MAIN takes precedence over "main" no matter what | |||
3154 | objfile it is in; If there is more than one N_MAIN, choose | |||
3155 | the one in the symfile_objfile; If there is more than one | |||
3156 | N_MAIN within a given objfile, complain() and choose | |||
3157 | arbitrarily. (kingdon) */ | |||
3158 | if (name != NULL((void*)0)) | |||
3159 | set_main_name (name); | |||
3160 | break; | |||
3161 | ||||
3162 | /* The following symbol types can be ignored. */ | |||
3163 | case N_OBJ: /* Solaris 2: Object file dir and name */ | |||
3164 | case N_PATCH: /* Solaris2: Patch Run Time Checker. */ | |||
3165 | /* N_UNDF: Solaris 2: file separator mark */ | |||
3166 | /* N_UNDF: -- we will never encounter it, since we only process one | |||
3167 | file's symbols at once. */ | |||
3168 | case N_ENDM: /* Solaris 2: End of module */ | |||
3169 | case N_ALIAS: /* SunPro F77: alias name, ignore for now. */ | |||
3170 | break; | |||
3171 | } | |||
3172 | ||||
3173 | /* '#' is a GNU C extension to allow one symbol to refer to another | |||
3174 | related symbol. | |||
3175 | ||||
3176 | Generally this is used so that an alias can refer to its main | |||
3177 | symbol. */ | |||
3178 | if (name[0] == '#') | |||
| ||||
3179 | { | |||
3180 | /* Initialize symbol reference names and determine if this is | |||
3181 | a definition. If symbol reference is being defined, go | |||
3182 | ahead and add it. Otherwise, just return sym. */ | |||
3183 | ||||
3184 | char *s = name; | |||
3185 | int refnum; | |||
3186 | ||||
3187 | /* If this stab defines a new reference ID that is not on the | |||
3188 | reference list, then put it on the reference list. | |||
3189 | ||||
3190 | We go ahead and advance NAME past the reference, even though | |||
3191 | it is not strictly necessary at this time. */ | |||
3192 | refnum = symbol_reference_defined (&s); | |||
3193 | if (refnum >= 0) | |||
3194 | if (!ref_search (refnum)) | |||
3195 | ref_add (refnum, 0, name, valu); | |||
3196 | name = s; | |||
3197 | } | |||
3198 | ||||
3199 | ||||
3200 | previous_stab_code = type; | |||
3201 | } | |||
3202 | ||||
3203 | /* FIXME: The only difference between this and elfstab_build_psymtabs | |||
3204 | is the call to install_minimal_symbols for elf, and the support for | |||
3205 | split sections. If the differences are really that small, the code | |||
3206 | should be shared. */ | |||
3207 | ||||
3208 | /* Scan and build partial symbols for an coff symbol file. | |||
3209 | The coff file has already been processed to get its minimal symbols. | |||
3210 | ||||
3211 | This routine is the equivalent of dbx_symfile_init and dbx_symfile_read | |||
3212 | rolled into one. | |||
3213 | ||||
3214 | OBJFILE is the object file we are reading symbols from. | |||
3215 | ADDR is the address relative to which the symbols are (e.g. | |||
3216 | the base address of the text segment). | |||
3217 | MAINLINE is true if we are reading the main symbol | |||
3218 | table (as opposed to a shared lib or dynamically loaded file). | |||
3219 | TEXTADDR is the address of the text section. | |||
3220 | TEXTSIZE is the size of the text section. | |||
3221 | STABSECTS is the list of .stab sections in OBJFILE. | |||
3222 | STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the | |||
3223 | .stabstr section exists. | |||
3224 | ||||
3225 | This routine is mostly copied from dbx_symfile_init and dbx_symfile_read, | |||
3226 | adjusted for coff details. */ | |||
3227 | ||||
3228 | void | |||
3229 | coffstab_build_psymtabs (struct objfile *objfile, int mainline, | |||
3230 | CORE_ADDR textaddr, unsigned int textsize, | |||
3231 | struct stab_section_list *stabsects, | |||
3232 | file_ptr stabstroffset, unsigned int stabstrsize) | |||
3233 | { | |||
3234 | int val; | |||
3235 | bfd *sym_bfd = objfile->obfd; | |||
3236 | char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename); | |||
3237 | struct dbx_symfile_info *info; | |||
3238 | unsigned int stabsize; | |||
3239 | ||||
3240 | /* There is already a dbx_symfile_info allocated by our caller. | |||
3241 | It might even contain some info from the coff symtab to help us. */ | |||
3242 | info = objfile->sym_stab_info; | |||
3243 | ||||
3244 | DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = textaddr; | |||
3245 | DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = textsize; | |||
3246 | ||||
3247 | #define COFF_STABS_SYMBOL_SIZE12 12 /* XXX FIXME XXX */ | |||
3248 | DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = COFF_STABS_SYMBOL_SIZE12; | |||
3249 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = stabstrsize; | |||
3250 | ||||
3251 | if (stabstrsize > bfd_get_size (sym_bfd)) | |||
3252 | error ("ridiculous string table size: %d bytes", stabstrsize); | |||
3253 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *) | |||
3254 | obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (stabstrsize + 1)); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack * __o1 = (__h); void *value; value = (void *) __o1->object_base ; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char * ) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask )) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1-> next_free = __o1->chunk_limit; __o1->object_base = __o1 ->next_free; value; }); }); | |||
3255 | OBJSTAT (objfile, sz_strtab += stabstrsize + 1)(objfile -> stats.sz_strtab += stabstrsize + 1); | |||
3256 | ||||
3257 | /* Now read in the string table in one big gulp. */ | |||
3258 | ||||
3259 | val = bfd_seek (sym_bfd, stabstroffset, SEEK_SET0); | |||
3260 | if (val < 0) | |||
3261 | perror_with_name (name); | |||
3262 | val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), stabstrsize, sym_bfd); | |||
3263 | if (val != stabstrsize) | |||
3264 | perror_with_name (name); | |||
3265 | ||||
3266 | stabsread_new_init (); | |||
3267 | buildsym_new_init (); | |||
3268 | free_header_files (); | |||
3269 | init_header_files (); | |||
3270 | ||||
3271 | processing_acc_compilation = 1; | |||
3272 | ||||
3273 | /* In a coff file, we've already installed the minimal symbols that came | |||
3274 | from the coff (non-stab) symbol table, so always act like an | |||
3275 | incremental load here. */ | |||
3276 | if (stabsects->next == NULL((void*)0)) | |||
3277 | { | |||
3278 | stabsize = bfd_section_size (sym_bfd, stabsects->section)((stabsects->section)->_raw_size); | |||
3279 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = stabsize / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size); | |||
3280 | DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsects->section->filepos; | |||
3281 | } | |||
3282 | else | |||
3283 | { | |||
3284 | struct stab_section_list *stabsect; | |||
3285 | ||||
3286 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = 0; | |||
3287 | for (stabsect = stabsects; stabsect != NULL((void*)0); stabsect = stabsect->next) | |||
3288 | { | |||
3289 | stabsize = bfd_section_size (sym_bfd, stabsect->section)((stabsect->section)->_raw_size); | |||
3290 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) += stabsize / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size); | |||
3291 | } | |||
3292 | ||||
3293 | DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsects->section->filepos; | |||
3294 | ||||
3295 | symbuf_sections = stabsects->next; | |||
3296 | symbuf_left = bfd_section_size (sym_bfd, stabsects->section)((stabsects->section)->_raw_size); | |||
3297 | symbuf_read = 0; | |||
3298 | } | |||
3299 | ||||
3300 | dbx_symfile_read (objfile, 0); | |||
3301 | } | |||
3302 | ||||
3303 | /* Scan and build partial symbols for an ELF symbol file. | |||
3304 | This ELF file has already been processed to get its minimal symbols. | |||
3305 | ||||
3306 | This routine is the equivalent of dbx_symfile_init and dbx_symfile_read | |||
3307 | rolled into one. | |||
3308 | ||||
3309 | OBJFILE is the object file we are reading symbols from. | |||
3310 | ADDR is the address relative to which the symbols are (e.g. | |||
3311 | the base address of the text segment). | |||
3312 | MAINLINE is true if we are reading the main symbol | |||
3313 | table (as opposed to a shared lib or dynamically loaded file). | |||
3314 | STABSECT is the BFD section information for the .stab section. | |||
3315 | STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the | |||
3316 | .stabstr section exists. | |||
3317 | ||||
3318 | This routine is mostly copied from dbx_symfile_init and dbx_symfile_read, | |||
3319 | adjusted for elf details. */ | |||
3320 | ||||
3321 | void | |||
3322 | elfstab_build_psymtabs (struct objfile *objfile, int mainline, | |||
3323 | asection *stabsect, | |||
3324 | file_ptr stabstroffset, unsigned int stabstrsize) | |||
3325 | { | |||
3326 | int val; | |||
3327 | bfd *sym_bfd = objfile->obfd; | |||
3328 | char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename); | |||
3329 | struct dbx_symfile_info *info; | |||
3330 | struct cleanup *back_to = NULL((void*)0); | |||
3331 | ||||
3332 | /* There is already a dbx_symfile_info allocated by our caller. | |||
3333 | It might even contain some info from the ELF symtab to help us. */ | |||
3334 | info = objfile->sym_stab_info; | |||
3335 | ||||
3336 | /* Find the first and last text address. dbx_symfile_read seems to | |||
3337 | want this. */ | |||
3338 | find_text_range (sym_bfd, objfile); | |||
3339 | ||||
3340 | #define ELF_STABS_SYMBOL_SIZE12 12 /* XXX FIXME XXX */ | |||
3341 | DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = ELF_STABS_SYMBOL_SIZE12; | |||
3342 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) | |||
3343 | = bfd_section_size (objfile->obfd, stabsect)((stabsect)->_raw_size) / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size); | |||
3344 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = stabstrsize; | |||
3345 | DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsect->filepos; | |||
3346 | DBX_STAB_SECTION (objfile)(((objfile)->sym_stab_info)->stab_section) = stabsect; | |||
3347 | ||||
3348 | if (stabstrsize > bfd_get_size (sym_bfd)) | |||
3349 | error ("ridiculous string table size: %d bytes", stabstrsize); | |||
3350 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *) | |||
3351 | obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (stabstrsize + 1)); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack * __o1 = (__h); void *value; value = (void *) __o1->object_base ; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char * ) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask )) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1-> next_free = __o1->chunk_limit; __o1->object_base = __o1 ->next_free; value; }); }); | |||
3352 | OBJSTAT (objfile, sz_strtab += stabstrsize + 1)(objfile -> stats.sz_strtab += stabstrsize + 1); | |||
3353 | ||||
3354 | /* Now read in the string table in one big gulp. */ | |||
3355 | ||||
3356 | val = bfd_seek (sym_bfd, stabstroffset, SEEK_SET0); | |||
3357 | if (val < 0) | |||
3358 | perror_with_name (name); | |||
3359 | val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), stabstrsize, sym_bfd); | |||
3360 | if (val != stabstrsize) | |||
3361 | perror_with_name (name); | |||
3362 | ||||
3363 | stabsread_new_init (); | |||
3364 | buildsym_new_init (); | |||
3365 | free_header_files (); | |||
3366 | init_header_files (); | |||
3367 | ||||
3368 | processing_acc_compilation = 1; | |||
3369 | ||||
3370 | symbuf_read = 0; | |||
3371 | symbuf_left = bfd_section_size (objfile->obfd, stabsect)((stabsect)->_raw_size); | |||
3372 | stabs_data = symfile_relocate_debug_section (objfile->obfd, stabsect, NULL((void*)0)); | |||
3373 | if (stabs_data) | |||
3374 | back_to = make_cleanup (free_current_contents, (void *) &stabs_data); | |||
3375 | ||||
3376 | /* In an elf file, we've already installed the minimal symbols that came | |||
3377 | from the elf (non-stab) symbol table, so always act like an | |||
3378 | incremental load here. dbx_symfile_read should not generate any new | |||
3379 | minimal symbols, since we will have already read the ELF dynamic symbol | |||
3380 | table and normal symbol entries won't be in the ".stab" section; but in | |||
3381 | case it does, it will install them itself. */ | |||
3382 | dbx_symfile_read (objfile, 0); | |||
3383 | ||||
3384 | if (back_to) | |||
3385 | do_cleanups (back_to); | |||
3386 | } | |||
3387 | ||||
3388 | /* Scan and build partial symbols for a file with special sections for stabs | |||
3389 | and stabstrings. The file has already been processed to get its minimal | |||
3390 | symbols, and any other symbols that might be necessary to resolve GSYMs. | |||
3391 | ||||
3392 | This routine is the equivalent of dbx_symfile_init and dbx_symfile_read | |||
3393 | rolled into one. | |||
3394 | ||||
3395 | OBJFILE is the object file we are reading symbols from. | |||
3396 | ADDR is the address relative to which the symbols are (e.g. the base address | |||
3397 | of the text segment). | |||
3398 | MAINLINE is true if we are reading the main symbol table (as opposed to a | |||
3399 | shared lib or dynamically loaded file). | |||
3400 | STAB_NAME is the name of the section that contains the stabs. | |||
3401 | STABSTR_NAME is the name of the section that contains the stab strings. | |||
3402 | ||||
3403 | This routine is mostly copied from dbx_symfile_init and dbx_symfile_read. */ | |||
3404 | ||||
3405 | void | |||
3406 | stabsect_build_psymtabs (struct objfile *objfile, int mainline, char *stab_name, | |||
3407 | char *stabstr_name, char *text_name) | |||
3408 | { | |||
3409 | int val; | |||
3410 | bfd *sym_bfd = objfile->obfd; | |||
3411 | char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename); | |||
3412 | asection *stabsect; | |||
3413 | asection *stabstrsect; | |||
3414 | asection *text_sect; | |||
3415 | ||||
3416 | stabsect = bfd_get_section_by_name (sym_bfd, stab_name); | |||
3417 | stabstrsect = bfd_get_section_by_name (sym_bfd, stabstr_name); | |||
3418 | ||||
3419 | if (!stabsect) | |||
3420 | return; | |||
3421 | ||||
3422 | if (!stabstrsect) | |||
3423 | error ("stabsect_build_psymtabs: Found stabs (%s), but not string section (%s)", | |||
3424 | stab_name, stabstr_name); | |||
3425 | ||||
3426 | objfile->sym_stab_info = (struct dbx_symfile_info *) | |||
3427 | xmalloc (sizeof (struct dbx_symfile_info)); | |||
3428 | memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info)); | |||
3429 | ||||
3430 | text_sect = bfd_get_section_by_name (sym_bfd, text_name); | |||
3431 | if (!text_sect) | |||
3432 | error ("Can't find %s section in symbol file", text_name); | |||
3433 | DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = bfd_section_vma (sym_bfd, text_sect)((text_sect)->vma); | |||
3434 | DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = bfd_section_size (sym_bfd, text_sect)((text_sect)->_raw_size); | |||
3435 | ||||
3436 | DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = sizeof (struct external_nlist); | |||
3437 | DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = bfd_section_size (sym_bfd, stabsect)((stabsect)->_raw_size) | |||
3438 | / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size); | |||
3439 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = bfd_section_size (sym_bfd, stabstrsect)((stabstrsect)->_raw_size); | |||
3440 | DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsect->filepos; /* XXX - FIXME: POKING INSIDE BFD DATA STRUCTURES */ | |||
3441 | ||||
3442 | if (DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) > bfd_get_size (sym_bfd)) | |||
3443 | error ("ridiculous string table size: %d bytes", DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size)); | |||
3444 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *) | |||
3445 | obstack_alloc (&objfile->objfile_obstack, DBX_STRINGTAB_SIZE (objfile) + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( ((((objfile)->sym_stab_info)->stringtab_size) + 1)); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len)); (void) 0; }) ; __extension__ ({ struct obstack *__o1 = (__h); void *value; value = (void *) __o1->object_base; if (__o1->next_free == value) __o1->maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask ) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1-> next_free - (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit ; __o1->object_base = __o1->next_free; value; }); }); | |||
3446 | OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile) + 1)(objfile -> stats.sz_strtab += (((objfile)->sym_stab_info )->stringtab_size) + 1); | |||
3447 | ||||
3448 | /* Now read in the string table in one big gulp. */ | |||
3449 | ||||
3450 | val = bfd_get_section_contents (sym_bfd, /* bfd */ | |||
3451 | stabstrsect, /* bfd section */ | |||
3452 | DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), /* input buffer */ | |||
3453 | 0, /* offset into section */ | |||
3454 | DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size)); /* amount to read */ | |||
3455 | ||||
3456 | if (!val) | |||
3457 | perror_with_name (name); | |||
3458 | ||||
3459 | stabsread_new_init (); | |||
3460 | buildsym_new_init (); | |||
3461 | free_header_files (); | |||
3462 | init_header_files (); | |||
3463 | ||||
3464 | /* Now, do an incremental load */ | |||
3465 | ||||
3466 | processing_acc_compilation = 1; | |||
3467 | dbx_symfile_read (objfile, 0); | |||
3468 | } | |||
3469 | ||||
3470 | static struct sym_fns aout_sym_fns = | |||
3471 | { | |||
3472 | bfd_target_aout_flavour, | |||
3473 | dbx_new_init, /* sym_new_init: init anything gbl to entire symtab */ | |||
3474 | dbx_symfile_init, /* sym_init: read initial info, setup for sym_read() */ | |||
3475 | dbx_symfile_read, /* sym_read: read a symbol file into symtab */ | |||
3476 | dbx_symfile_finish, /* sym_finish: finished with file, cleanup */ | |||
3477 | default_symfile_offsets, /* sym_offsets: parse user's offsets to internal form */ | |||
3478 | NULL((void*)0) /* next: pointer to next struct sym_fns */ | |||
3479 | }; | |||
3480 | ||||
3481 | void | |||
3482 | _initialize_dbxread (void) | |||
3483 | { | |||
3484 | add_symtab_fns (&aout_sym_fns); | |||
3485 | } |