File: | src/gnu/usr.bin/binutils/gdb/coffread.c |
Warning: | line 1487, column 22 Assigned value is garbage or undefined |
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1 | /* Read coff symbol tables and convert to internal format, for GDB. | |||
2 | Copyright 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, | |||
3 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 | |||
4 | Free Software Foundation, Inc. | |||
5 | Contributed by David D. Johnson, Brown University (ddj@cs.brown.edu). | |||
6 | ||||
7 | This file is part of GDB. | |||
8 | ||||
9 | This program is free software; you can redistribute it and/or modify | |||
10 | it under the terms of the GNU General Public License as published by | |||
11 | the Free Software Foundation; either version 2 of the License, or | |||
12 | (at your option) any later version. | |||
13 | ||||
14 | This program is distributed in the hope that it will be useful, | |||
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
17 | GNU General Public License for more details. | |||
18 | ||||
19 | You should have received a copy of the GNU General Public License | |||
20 | along with this program; if not, write to the Free Software | |||
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |||
22 | Boston, MA 02111-1307, USA. */ | |||
23 | ||||
24 | #include "defs.h" | |||
25 | #include "symtab.h" | |||
26 | #include "gdbtypes.h" | |||
27 | #include "demangle.h" | |||
28 | #include "breakpoint.h" | |||
29 | ||||
30 | #include "bfd.h" | |||
31 | #include "gdb_obstack.h" | |||
32 | ||||
33 | #include "gdb_string.h" | |||
34 | #include <ctype.h> | |||
35 | ||||
36 | #include "coff/internal.h" /* Internal format of COFF symbols in BFD */ | |||
37 | #include "libcoff.h" /* FIXME secret internal data from BFD */ | |||
38 | #include "objfiles.h" | |||
39 | #include "buildsym.h" | |||
40 | #include "gdb-stabs.h" | |||
41 | #include "stabsread.h" | |||
42 | #include "complaints.h" | |||
43 | #include "target.h" | |||
44 | #include "gdb_assert.h" | |||
45 | #include "block.h" | |||
46 | #include "dictionary.h" | |||
47 | ||||
48 | #include "coff-pe-read.h" | |||
49 | ||||
50 | extern void _initialize_coffread (void); | |||
51 | ||||
52 | struct coff_symfile_info | |||
53 | { | |||
54 | file_ptr min_lineno_offset; /* Where in file lowest line#s are */ | |||
55 | file_ptr max_lineno_offset; /* 1+last byte of line#s in file */ | |||
56 | ||||
57 | CORE_ADDR textaddr; /* Addr of .text section. */ | |||
58 | unsigned int textsize; /* Size of .text section. */ | |||
59 | struct stab_section_list *stabsects; /* .stab sections. */ | |||
60 | asection *stabstrsect; /* Section pointer for .stab section */ | |||
61 | char *stabstrdata; | |||
62 | }; | |||
63 | ||||
64 | /* Translate an external name string into a user-visible name. */ | |||
65 | #define EXTERNAL_NAME(string, abfd)(string[0] == ((abfd)->xvec->symbol_leading_char)? string +1: string) \ | |||
66 | (string[0] == bfd_get_symbol_leading_char(abfd)((abfd)->xvec->symbol_leading_char)? string+1: string) | |||
67 | ||||
68 | /* To be an sdb debug type, type must have at least a basic or primary | |||
69 | derived type. Using this rather than checking against T_NULL is | |||
70 | said to prevent core dumps if we try to operate on Michael Bloom | |||
71 | dbx-in-coff file. */ | |||
72 | ||||
73 | #define SDB_TYPE(type)(((type) & local_n_btmask) | (type & local_n_tmask)) (BTYPE(type)((type) & local_n_btmask) | (type & N_TMASKlocal_n_tmask)) | |||
74 | ||||
75 | /* Core address of start and end of text of current source file. | |||
76 | This comes from a ".text" symbol where x_nlinno > 0. */ | |||
77 | ||||
78 | static CORE_ADDR current_source_start_addr; | |||
79 | static CORE_ADDR current_source_end_addr; | |||
80 | ||||
81 | /* The addresses of the symbol table stream and number of symbols | |||
82 | of the object file we are reading (as copied into core). */ | |||
83 | ||||
84 | static bfd *nlist_bfd_global; | |||
85 | static int nlist_nsyms_global; | |||
86 | ||||
87 | ||||
88 | /* Pointers to scratch storage, used for reading raw symbols and auxents. */ | |||
89 | ||||
90 | static char *temp_sym; | |||
91 | static char *temp_aux; | |||
92 | ||||
93 | /* Local variables that hold the shift and mask values for the | |||
94 | COFF file that we are currently reading. These come back to us | |||
95 | from BFD, and are referenced by their macro names, as well as | |||
96 | internally to the BTYPE, ISPTR, ISFCN, ISARY, ISTAG, and DECREF | |||
97 | macros from include/coff/internal.h . */ | |||
98 | ||||
99 | static unsigned local_n_btmask; | |||
100 | static unsigned local_n_btshft; | |||
101 | static unsigned local_n_tmask; | |||
102 | static unsigned local_n_tshift; | |||
103 | ||||
104 | #define N_BTMASKlocal_n_btmask local_n_btmask | |||
105 | #define N_BTSHFTlocal_n_btshft local_n_btshft | |||
106 | #define N_TMASKlocal_n_tmask local_n_tmask | |||
107 | #define N_TSHIFTlocal_n_tshift local_n_tshift | |||
108 | ||||
109 | /* Local variables that hold the sizes in the file of various COFF structures. | |||
110 | (We only need to know this to read them from the file -- BFD will then | |||
111 | translate the data in them, into `internal_xxx' structs in the right | |||
112 | byte order, alignment, etc.) */ | |||
113 | ||||
114 | static unsigned local_linesz; | |||
115 | static unsigned local_symesz; | |||
116 | static unsigned local_auxesz; | |||
117 | ||||
118 | /* This is set if this is a PE format file. */ | |||
119 | ||||
120 | static int pe_file; | |||
121 | ||||
122 | /* Chain of typedefs of pointers to empty struct/union types. | |||
123 | They are chained thru the SYMBOL_VALUE_CHAIN. */ | |||
124 | ||||
125 | static struct symbol *opaque_type_chain[HASHSIZE127]; | |||
126 | ||||
127 | /* Simplified internal version of coff symbol table information */ | |||
128 | ||||
129 | struct coff_symbol | |||
130 | { | |||
131 | char *c_name; | |||
132 | int c_symnum; /* symbol number of this entry */ | |||
133 | int c_naux; /* 0 if syment only, 1 if syment + auxent, etc */ | |||
134 | long c_value; | |||
135 | int c_sclass; | |||
136 | int c_secnum; | |||
137 | unsigned int c_type; | |||
138 | }; | |||
139 | ||||
140 | extern void stabsread_clear_cache (void); | |||
141 | ||||
142 | static struct type *coff_read_struct_type (int, int, int); | |||
143 | ||||
144 | static struct type *decode_base_type (struct coff_symbol *, | |||
145 | unsigned int, union internal_auxent *); | |||
146 | ||||
147 | static struct type *decode_type (struct coff_symbol *, unsigned int, | |||
148 | union internal_auxent *); | |||
149 | ||||
150 | static struct type *decode_function_type (struct coff_symbol *, | |||
151 | unsigned int, | |||
152 | union internal_auxent *); | |||
153 | ||||
154 | static struct type *coff_read_enum_type (int, int, int); | |||
155 | ||||
156 | static struct symbol *process_coff_symbol (struct coff_symbol *, | |||
157 | union internal_auxent *, | |||
158 | struct objfile *); | |||
159 | ||||
160 | static void patch_opaque_types (struct symtab *); | |||
161 | ||||
162 | static void enter_linenos (long, int, int, struct objfile *); | |||
163 | ||||
164 | static void free_linetab (void); | |||
165 | ||||
166 | static void free_linetab_cleanup (void *ignore); | |||
167 | ||||
168 | static int init_lineno (bfd *, long, int); | |||
169 | ||||
170 | static char *getsymname (struct internal_syment *); | |||
171 | ||||
172 | static char *coff_getfilename (union internal_auxent *); | |||
173 | ||||
174 | static void free_stringtab (void); | |||
175 | ||||
176 | static void free_stringtab_cleanup (void *ignore); | |||
177 | ||||
178 | static int init_stringtab (bfd *, long); | |||
179 | ||||
180 | static void read_one_sym (struct coff_symbol *, | |||
181 | struct internal_syment *, union internal_auxent *); | |||
182 | ||||
183 | static void coff_symtab_read (long, unsigned int, struct objfile *); | |||
184 | ||||
185 | /* We are called once per section from coff_symfile_read. We | |||
186 | need to examine each section we are passed, check to see | |||
187 | if it is something we are interested in processing, and | |||
188 | if so, stash away some access information for the section. | |||
189 | ||||
190 | FIXME: The section names should not be hardwired strings (what | |||
191 | should they be? I don't think most object file formats have enough | |||
192 | section flags to specify what kind of debug section it is | |||
193 | -kingdon). */ | |||
194 | ||||
195 | static void | |||
196 | coff_locate_sections (bfd *abfd, asection *sectp, void *csip) | |||
197 | { | |||
198 | struct coff_symfile_info *csi; | |||
199 | const char *name; | |||
200 | ||||
201 | csi = (struct coff_symfile_info *) csip; | |||
202 | name = bfd_get_section_name (abfd, sectp)((sectp)->name + 0); | |||
203 | if (DEPRECATED_STREQ (name, ".text")(strcmp ((name), (".text")) == 0)) | |||
204 | { | |||
205 | csi->textaddr = bfd_section_vma (abfd, sectp)((sectp)->vma); | |||
206 | csi->textsize += bfd_section_size (abfd, sectp)((sectp)->_raw_size); | |||
207 | } | |||
208 | else if (strncmp (name, ".text", sizeof ".text" - 1) == 0) | |||
209 | { | |||
210 | csi->textsize += bfd_section_size (abfd, sectp)((sectp)->_raw_size); | |||
211 | } | |||
212 | else if (DEPRECATED_STREQ (name, ".stabstr")(strcmp ((name), (".stabstr")) == 0)) | |||
213 | { | |||
214 | csi->stabstrsect = sectp; | |||
215 | } | |||
216 | else if (strncmp (name, ".stab", sizeof ".stab" - 1) == 0) | |||
217 | { | |||
218 | const char *s; | |||
219 | ||||
220 | /* We can have multiple .stab sections if linked with | |||
221 | --split-by-reloc. */ | |||
222 | for (s = name + sizeof ".stab" - 1; *s != '\0'; s++) | |||
223 | if (!isdigit (*s)) | |||
224 | break; | |||
225 | if (*s == '\0') | |||
226 | { | |||
227 | struct stab_section_list *n, **pn; | |||
228 | ||||
229 | n = ((struct stab_section_list *) | |||
230 | xmalloc (sizeof (struct stab_section_list))); | |||
231 | n->section = sectp; | |||
232 | n->next = NULL((void*)0); | |||
233 | for (pn = &csi->stabsects; *pn != NULL((void*)0); pn = &(*pn)->next) | |||
234 | ; | |||
235 | *pn = n; | |||
236 | ||||
237 | /* This will be run after coffstab_build_psymtabs is called | |||
238 | in coff_symfile_read, at which point we no longer need | |||
239 | the information. */ | |||
240 | make_cleanup (xfree, n); | |||
241 | } | |||
242 | } | |||
243 | } | |||
244 | ||||
245 | /* Return the section_offsets* that CS points to. */ | |||
246 | static int cs_to_section (struct coff_symbol *, struct objfile *); | |||
247 | ||||
248 | struct find_targ_sec_arg | |||
249 | { | |||
250 | int targ_index; | |||
251 | asection **resultp; | |||
252 | }; | |||
253 | ||||
254 | static void | |||
255 | find_targ_sec (bfd *abfd, asection *sect, void *obj) | |||
256 | { | |||
257 | struct find_targ_sec_arg *args = (struct find_targ_sec_arg *) obj; | |||
258 | if (sect->target_index == args->targ_index) | |||
259 | *args->resultp = sect; | |||
260 | } | |||
261 | ||||
262 | /* Return the section number (SECT_OFF_*) that CS points to. */ | |||
263 | static int | |||
264 | cs_to_section (struct coff_symbol *cs, struct objfile *objfile) | |||
265 | { | |||
266 | asection *sect = NULL((void*)0); | |||
267 | struct find_targ_sec_arg args; | |||
268 | int off = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 268, "sect_index_text not initialized"), -1) : objfile-> sect_index_text); | |||
269 | ||||
270 | args.targ_index = cs->c_secnum; | |||
271 | args.resultp = § | |||
272 | bfd_map_over_sections (objfile->obfd, find_targ_sec, &args); | |||
273 | if (sect != NULL((void*)0)) | |||
274 | { | |||
275 | /* This is the section. Figure out what SECT_OFF_* code it is. */ | |||
276 | if (bfd_get_section_flags (abfd, sect)((sect)->flags + 0) & SEC_CODE0x020) | |||
277 | off = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 277, "sect_index_text not initialized"), -1) : objfile-> sect_index_text); | |||
278 | else if (bfd_get_section_flags (abfd, sect)((sect)->flags + 0) & SEC_LOAD0x002) | |||
279 | off = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 279, "sect_index_data not initialized"), -1) : objfile-> sect_index_data); | |||
280 | else | |||
281 | /* Just return the bfd section index. */ | |||
282 | off = sect->index; | |||
283 | } | |||
284 | return off; | |||
285 | } | |||
286 | ||||
287 | /* Return the address of the section of a COFF symbol. */ | |||
288 | ||||
289 | static CORE_ADDR cs_section_address (struct coff_symbol *, bfd *); | |||
290 | ||||
291 | static CORE_ADDR | |||
292 | cs_section_address (struct coff_symbol *cs, bfd *abfd) | |||
293 | { | |||
294 | asection *sect = NULL((void*)0); | |||
295 | struct find_targ_sec_arg args; | |||
296 | CORE_ADDR addr = 0; | |||
297 | ||||
298 | args.targ_index = cs->c_secnum; | |||
299 | args.resultp = § | |||
300 | bfd_map_over_sections (abfd, find_targ_sec, &args); | |||
301 | if (sect != NULL((void*)0)) | |||
302 | addr = bfd_get_section_vma (objfile->obfd, sect)((sect)->vma + 0); | |||
303 | return addr; | |||
304 | } | |||
305 | ||||
306 | /* Look up a coff type-number index. Return the address of the slot | |||
307 | where the type for that index is stored. | |||
308 | The type-number is in INDEX. | |||
309 | ||||
310 | This can be used for finding the type associated with that index | |||
311 | or for associating a new type with the index. */ | |||
312 | ||||
313 | static struct type ** | |||
314 | coff_lookup_type (int index) | |||
315 | { | |||
316 | if (index >= type_vector_length) | |||
317 | { | |||
318 | int old_vector_length = type_vector_length; | |||
319 | ||||
320 | type_vector_length *= 2; | |||
321 | if (index /* is still */ >= type_vector_length) | |||
322 | type_vector_length = index * 2; | |||
323 | ||||
324 | type_vector = (struct type **) | |||
325 | xrealloc ((char *) type_vector, | |||
326 | type_vector_length * sizeof (struct type *)); | |||
327 | memset (&type_vector[old_vector_length], 0, | |||
328 | (type_vector_length - old_vector_length) * sizeof (struct type *)); | |||
329 | } | |||
330 | return &type_vector[index]; | |||
331 | } | |||
332 | ||||
333 | /* Make sure there is a type allocated for type number index | |||
334 | and return the type object. | |||
335 | This can create an empty (zeroed) type object. */ | |||
336 | ||||
337 | static struct type * | |||
338 | coff_alloc_type (int index) | |||
339 | { | |||
340 | struct type **type_addr = coff_lookup_type (index); | |||
341 | struct type *type = *type_addr; | |||
342 | ||||
343 | /* If we are referring to a type not known at all yet, | |||
344 | allocate an empty type for it. | |||
345 | We will fill it in later if we find out how. */ | |||
346 | if (type == NULL((void*)0)) | |||
347 | { | |||
348 | type = alloc_type (current_objfile); | |||
349 | *type_addr = type; | |||
350 | } | |||
351 | return type; | |||
352 | } | |||
353 | ||||
354 | /* Start a new symtab for a new source file. | |||
355 | This is called when a COFF ".file" symbol is seen; | |||
356 | it indicates the start of data for one original source file. */ | |||
357 | ||||
358 | static void | |||
359 | coff_start_symtab (char *name) | |||
360 | { | |||
361 | start_symtab ( | |||
362 | /* We fill in the filename later. start_symtab puts | |||
363 | this pointer into last_source_file and we put it in | |||
364 | subfiles->name, which end_symtab frees; that's why | |||
365 | it must be malloc'd. */ | |||
366 | savestring (name, strlen (name)), | |||
367 | /* We never know the directory name for COFF. */ | |||
368 | NULL((void*)0), | |||
369 | /* The start address is irrelevant, since we set | |||
370 | last_source_start_addr in coff_end_symtab. */ | |||
371 | 0); | |||
372 | record_debugformat ("COFF"); | |||
373 | } | |||
374 | ||||
375 | /* Save the vital information from when starting to read a file, | |||
376 | for use when closing off the current file. | |||
377 | NAME is the file name the symbols came from, START_ADDR is the first | |||
378 | text address for the file, and SIZE is the number of bytes of text. */ | |||
379 | ||||
380 | static void | |||
381 | complete_symtab (char *name, CORE_ADDR start_addr, unsigned int size) | |||
382 | { | |||
383 | if (last_source_file != NULL((void*)0)) | |||
384 | xfree (last_source_file); | |||
385 | last_source_file = savestring (name, strlen (name)); | |||
386 | current_source_start_addr = start_addr; | |||
387 | current_source_end_addr = start_addr + size; | |||
388 | } | |||
389 | ||||
390 | /* Finish the symbol definitions for one main source file, | |||
391 | close off all the lexical contexts for that file | |||
392 | (creating struct block's for them), then make the | |||
393 | struct symtab for that file and put it in the list of all such. */ | |||
394 | ||||
395 | static void | |||
396 | coff_end_symtab (struct objfile *objfile) | |||
397 | { | |||
398 | struct symtab *symtab; | |||
399 | ||||
400 | last_source_start_addr = current_source_start_addr; | |||
401 | ||||
402 | symtab = end_symtab (current_source_end_addr, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 402, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)); | |||
403 | ||||
404 | if (symtab != NULL((void*)0)) | |||
405 | free_named_symtabs (symtab->filename); | |||
406 | ||||
407 | /* Reinitialize for beginning of new file. */ | |||
408 | last_source_file = NULL((void*)0); | |||
409 | } | |||
410 | ||||
411 | static void | |||
412 | record_minimal_symbol (char *name, CORE_ADDR address, | |||
413 | enum minimal_symbol_type type, struct objfile *objfile) | |||
414 | { | |||
415 | /* We don't want TDESC entry points in the minimal symbol table */ | |||
416 | if (name[0] == '@') | |||
417 | return; | |||
418 | ||||
419 | prim_record_minimal_symbol (name, address, type, objfile); | |||
420 | } | |||
421 | ||||
422 | /* coff_symfile_init () | |||
423 | is the coff-specific initialization routine for reading symbols. | |||
424 | It is passed a struct objfile which contains, among other things, | |||
425 | the BFD for the file whose symbols are being read, and a slot for | |||
426 | a pointer to "private data" which we fill with cookies and other | |||
427 | treats for coff_symfile_read (). | |||
428 | ||||
429 | We will only be called if this is a COFF or COFF-like file. | |||
430 | BFD handles figuring out the format of the file, and code in symtab.c | |||
431 | uses BFD's determination to vector to us. | |||
432 | ||||
433 | The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */ | |||
434 | ||||
435 | static void | |||
436 | coff_symfile_init (struct objfile *objfile) | |||
437 | { | |||
438 | /* Allocate struct to keep track of stab reading. */ | |||
439 | objfile->sym_stab_info = (struct dbx_symfile_info *) | |||
440 | xmalloc (sizeof (struct dbx_symfile_info)); | |||
441 | ||||
442 | memset (objfile->sym_stab_info, 0, | |||
443 | sizeof (struct dbx_symfile_info)); | |||
444 | ||||
445 | /* Allocate struct to keep track of the symfile */ | |||
446 | objfile->sym_private = xmalloc (sizeof (struct coff_symfile_info)); | |||
447 | ||||
448 | memset (objfile->sym_private, 0, sizeof (struct coff_symfile_info)); | |||
449 | ||||
450 | /* COFF objects may be reordered, so set OBJF_REORDERED. If we | |||
451 | find this causes a significant slowdown in gdb then we could | |||
452 | set it in the debug symbol readers only when necessary. */ | |||
453 | objfile->flags |= OBJF_REORDERED(1 << 2); | |||
454 | ||||
455 | init_entry_point_info (objfile); | |||
456 | } | |||
457 | ||||
458 | /* This function is called for every section; it finds the outer limits | |||
459 | of the line table (minimum and maximum file offset) so that the | |||
460 | mainline code can read the whole thing for efficiency. */ | |||
461 | ||||
462 | static void | |||
463 | find_linenos (bfd *abfd, struct bfd_section *asect, void *vpinfo) | |||
464 | { | |||
465 | struct coff_symfile_info *info; | |||
466 | int size, count; | |||
467 | file_ptr offset, maxoff; | |||
468 | ||||
469 | /* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */ | |||
470 | count = asect->lineno_count; | |||
471 | /* End of warning */ | |||
472 | ||||
473 | if (count == 0) | |||
474 | return; | |||
475 | size = count * local_linesz; | |||
476 | ||||
477 | info = (struct coff_symfile_info *) vpinfo; | |||
478 | /* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */ | |||
479 | offset = asect->line_filepos; | |||
480 | /* End of warning */ | |||
481 | ||||
482 | if (offset < info->min_lineno_offset || info->min_lineno_offset == 0) | |||
483 | info->min_lineno_offset = offset; | |||
484 | ||||
485 | maxoff = offset + size; | |||
486 | if (maxoff > info->max_lineno_offset) | |||
487 | info->max_lineno_offset = maxoff; | |||
488 | } | |||
489 | ||||
490 | ||||
491 | /* The BFD for this file -- only good while we're actively reading | |||
492 | symbols into a psymtab or a symtab. */ | |||
493 | ||||
494 | static bfd *symfile_bfd; | |||
495 | ||||
496 | /* Read a symbol file, after initialization by coff_symfile_init. */ | |||
497 | ||||
498 | static void | |||
499 | coff_symfile_read (struct objfile *objfile, int mainline) | |||
500 | { | |||
501 | struct coff_symfile_info *info; | |||
502 | struct dbx_symfile_info *dbxinfo; | |||
503 | bfd *abfd = objfile->obfd; | |||
504 | coff_data_type *cdata = coff_data (abfd)((abfd)->tdata.coff_obj_data); | |||
505 | char *name = bfd_get_filename (abfd)((char *) (abfd)->filename); | |||
506 | int val; | |||
507 | unsigned int num_symbols; | |||
508 | int symtab_offset; | |||
509 | int stringtab_offset; | |||
510 | struct cleanup *back_to, *cleanup_minimal_symbols; | |||
511 | int stabstrsize; | |||
512 | int len; | |||
513 | char * target; | |||
514 | ||||
515 | info = (struct coff_symfile_info *) objfile->sym_private; | |||
516 | dbxinfo = objfile->sym_stab_info; | |||
517 | symfile_bfd = abfd; /* Kludge for swap routines */ | |||
518 | ||||
519 | /* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */ | |||
520 | num_symbols = bfd_get_symcount (abfd)((abfd)->symcount); /* How many syms */ | |||
521 | symtab_offset = cdata->sym_filepos; /* Symbol table file offset */ | |||
522 | stringtab_offset = symtab_offset + /* String table file offset */ | |||
523 | num_symbols * cdata->local_symesz; | |||
524 | ||||
525 | /* Set a few file-statics that give us specific information about | |||
526 | the particular COFF file format we're reading. */ | |||
527 | local_n_btmask = cdata->local_n_btmask; | |||
528 | local_n_btshft = cdata->local_n_btshft; | |||
529 | local_n_tmask = cdata->local_n_tmask; | |||
530 | local_n_tshift = cdata->local_n_tshift; | |||
531 | local_linesz = cdata->local_linesz; | |||
532 | local_symesz = cdata->local_symesz; | |||
533 | local_auxesz = cdata->local_auxesz; | |||
534 | ||||
535 | /* Allocate space for raw symbol and aux entries, based on their | |||
536 | space requirements as reported by BFD. */ | |||
537 | temp_sym = (char *) xmalloc | |||
538 | (cdata->local_symesz + cdata->local_auxesz); | |||
539 | temp_aux = temp_sym + cdata->local_symesz; | |||
540 | back_to = make_cleanup (free_current_contents, &temp_sym); | |||
541 | ||||
542 | /* We need to know whether this is a PE file, because in PE files, | |||
543 | unlike standard COFF files, symbol values are stored as offsets | |||
544 | from the section address, rather than as absolute addresses. | |||
545 | FIXME: We should use BFD to read the symbol table, and thus avoid | |||
546 | this problem. */ | |||
547 | pe_file = | |||
548 | strncmp (bfd_get_target (objfile->obfd)((objfile->obfd)->xvec->name), "pe", 2) == 0 | |||
549 | || strncmp (bfd_get_target (objfile->obfd)((objfile->obfd)->xvec->name), "epoc-pe", 7) == 0; | |||
550 | ||||
551 | /* End of warning */ | |||
552 | ||||
553 | info->min_lineno_offset = 0; | |||
554 | info->max_lineno_offset = 0; | |||
555 | ||||
556 | /* Only read line number information if we have symbols. | |||
557 | ||||
558 | On Windows NT, some of the system's DLL's have sections with | |||
559 | PointerToLinenumbers fields that are non-zero, but point at | |||
560 | random places within the image file. (In the case I found, | |||
561 | KERNEL32.DLL's .text section has a line number info pointer that | |||
562 | points into the middle of the string `lib\\i386\kernel32.dll'.) | |||
563 | ||||
564 | However, these DLL's also have no symbols. The line number | |||
565 | tables are meaningless without symbols. And in fact, GDB never | |||
566 | uses the line number information unless there are symbols. So we | |||
567 | can avoid spurious error messages (and maybe run a little | |||
568 | faster!) by not even reading the line number table unless we have | |||
569 | symbols. */ | |||
570 | if (num_symbols > 0) | |||
571 | { | |||
572 | /* Read the line number table, all at once. */ | |||
573 | bfd_map_over_sections (abfd, find_linenos, (void *) info); | |||
574 | ||||
575 | make_cleanup (free_linetab_cleanup, 0 /*ignore*/); | |||
576 | val = init_lineno (abfd, info->min_lineno_offset, | |||
577 | info->max_lineno_offset - info->min_lineno_offset); | |||
578 | if (val < 0) | |||
579 | error ("\"%s\": error reading line numbers\n", name); | |||
580 | } | |||
581 | ||||
582 | /* Now read the string table, all at once. */ | |||
583 | ||||
584 | make_cleanup (free_stringtab_cleanup, 0 /*ignore*/); | |||
585 | val = init_stringtab (abfd, stringtab_offset); | |||
586 | if (val < 0) | |||
587 | error ("\"%s\": can't get string table", name); | |||
588 | ||||
589 | init_minimal_symbol_collection (); | |||
590 | cleanup_minimal_symbols = make_cleanup_discard_minimal_symbols (); | |||
591 | ||||
592 | /* Now that the executable file is positioned at symbol table, | |||
593 | process it and define symbols accordingly. */ | |||
594 | ||||
595 | coff_symtab_read ((long) symtab_offset, num_symbols, objfile); | |||
596 | ||||
597 | /* Install any minimal symbols that have been collected as the current | |||
598 | minimal symbols for this objfile. */ | |||
599 | ||||
600 | install_minimal_symbols (objfile); | |||
601 | ||||
602 | /* Free the installed minimal symbol data. */ | |||
603 | do_cleanups (cleanup_minimal_symbols); | |||
604 | ||||
605 | /* If we are reinitializing, or if we have not loaded syms yet, | |||
606 | empty the psymtab. "mainline" is cleared so the *_read_psymtab | |||
607 | functions do not all re-initialize it. */ | |||
608 | if (mainline) | |||
609 | { | |||
610 | init_psymbol_list (objfile, 0); | |||
611 | mainline = 0; | |||
612 | } | |||
613 | ||||
614 | bfd_map_over_sections (abfd, coff_locate_sections, (void *) info); | |||
615 | ||||
616 | if (info->stabsects) | |||
617 | { | |||
618 | if (!info->stabstrsect) | |||
619 | { | |||
620 | error (("The debugging information in `%s' is corrupted.\n" | |||
621 | "The file has a `.stabs' section, but no `.stabstr' " | |||
622 | "section."), | |||
623 | name); | |||
624 | } | |||
625 | ||||
626 | /* FIXME: dubious. Why can't we use something normal like | |||
627 | bfd_get_section_contents? */ | |||
628 | bfd_seek (abfd, abfd->where, 0); | |||
629 | ||||
630 | stabstrsize = bfd_section_size (abfd, info->stabstrsect)((info->stabstrsect)->_raw_size); | |||
631 | ||||
632 | coffstab_build_psymtabs (objfile, | |||
633 | mainline, | |||
634 | info->textaddr, info->textsize, | |||
635 | info->stabsects, | |||
636 | info->stabstrsect->filepos, stabstrsize); | |||
637 | } | |||
638 | if (dwarf2_has_info (objfile)) | |||
639 | { | |||
640 | /* DWARF2 sections. */ | |||
641 | dwarf2_build_psymtabs (objfile, mainline); | |||
642 | } | |||
643 | ||||
644 | dwarf2_build_frame_info (objfile); | |||
645 | ||||
646 | do_cleanups (back_to); | |||
647 | } | |||
648 | ||||
649 | static void | |||
650 | coff_new_init (struct objfile *ignore) | |||
651 | { | |||
652 | } | |||
653 | ||||
654 | /* Perform any local cleanups required when we are done with a particular | |||
655 | objfile. I.E, we are in the process of discarding all symbol information | |||
656 | for an objfile, freeing up all memory held for it, and unlinking the | |||
657 | objfile struct from the global list of known objfiles. */ | |||
658 | ||||
659 | static void | |||
660 | coff_symfile_finish (struct objfile *objfile) | |||
661 | { | |||
662 | if (objfile->sym_private != NULL((void*)0)) | |||
663 | { | |||
664 | xfree (objfile->sym_private); | |||
665 | } | |||
666 | ||||
667 | /* Let stabs reader clean up */ | |||
668 | stabsread_clear_cache (); | |||
669 | } | |||
670 | ||||
671 | ||||
672 | /* Given pointers to a symbol table in coff style exec file, | |||
673 | analyze them and create struct symtab's describing the symbols. | |||
674 | NSYMS is the number of symbols in the symbol table. | |||
675 | We read them one at a time using read_one_sym (). */ | |||
676 | ||||
677 | static void | |||
678 | coff_symtab_read (long symtab_offset, unsigned int nsyms, | |||
679 | struct objfile *objfile) | |||
680 | { | |||
681 | struct context_stack *new; | |||
682 | struct coff_symbol coff_symbol; | |||
683 | struct coff_symbol *cs = &coff_symbol; | |||
684 | static struct internal_syment main_sym; | |||
685 | static union internal_auxent main_aux; | |||
686 | struct coff_symbol fcn_cs_saved; | |||
687 | static struct internal_syment fcn_sym_saved; | |||
688 | static union internal_auxent fcn_aux_saved; | |||
689 | struct symtab *s; | |||
690 | /* A .file is open. */ | |||
691 | int in_source_file = 0; | |||
692 | int next_file_symnum = -1; | |||
693 | /* Name of the current file. */ | |||
694 | char *filestring = ""; | |||
695 | int depth = 0; | |||
696 | int fcn_first_line = 0; | |||
697 | CORE_ADDR fcn_first_line_addr = 0; | |||
698 | int fcn_last_line = 0; | |||
699 | int fcn_start_addr = 0; | |||
700 | long fcn_line_ptr = 0; | |||
701 | int val; | |||
702 | CORE_ADDR tmpaddr; | |||
703 | ||||
704 | /* Work around a stdio bug in SunOS4.1.1 (this makes me nervous.... | |||
705 | it's hard to know I've really worked around it. The fix should be | |||
706 | harmless, anyway). The symptom of the bug is that the first | |||
707 | fread (in read_one_sym), will (in my example) actually get data | |||
708 | from file offset 268, when the fseek was to 264 (and ftell shows | |||
709 | 264). This causes all hell to break loose. I was unable to | |||
710 | reproduce this on a short test program which operated on the same | |||
711 | file, performing (I think) the same sequence of operations. | |||
712 | ||||
713 | It stopped happening when I put in this (former) rewind(). | |||
714 | ||||
715 | FIXME: Find out if this has been reported to Sun, whether it has | |||
716 | been fixed in a later release, etc. */ | |||
717 | ||||
718 | bfd_seek (objfile->obfd, 0, 0); | |||
719 | ||||
720 | /* Position to read the symbol table. */ | |||
721 | val = bfd_seek (objfile->obfd, (long) symtab_offset, 0); | |||
722 | if (val < 0) | |||
| ||||
723 | perror_with_name (objfile->name); | |||
724 | ||||
725 | current_objfile = objfile; | |||
726 | nlist_bfd_global = objfile->obfd; | |||
727 | nlist_nsyms_global = nsyms; | |||
728 | last_source_file = NULL((void*)0); | |||
729 | memset (opaque_type_chain, 0, sizeof opaque_type_chain); | |||
730 | ||||
731 | if (type_vector) /* Get rid of previous one */ | |||
732 | xfree (type_vector); | |||
733 | type_vector_length = 160; | |||
734 | type_vector = (struct type **) | |||
735 | xmalloc (type_vector_length * sizeof (struct type *)); | |||
736 | memset (type_vector, 0, type_vector_length * sizeof (struct type *)); | |||
737 | ||||
738 | coff_start_symtab (""); | |||
739 | ||||
740 | symnum = 0; | |||
741 | while (symnum < nsyms) | |||
742 | { | |||
743 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* Make this command interruptable. */ | |||
744 | ||||
745 | read_one_sym (cs, &main_sym, &main_aux); | |||
746 | ||||
747 | if (cs->c_symnum == next_file_symnum
| |||
748 | { | |||
749 | if (last_source_file) | |||
750 | coff_end_symtab (objfile); | |||
751 | ||||
752 | coff_start_symtab ("_globals_"); | |||
753 | complete_symtab ("_globals_", 0, 0); | |||
754 | /* done with all files, everything from here on out is globals */ | |||
755 | } | |||
756 | ||||
757 | /* Special case for file with type declarations only, no text. */ | |||
758 | if (!last_source_file && SDB_TYPE (cs->c_type)(((cs->c_type) & local_n_btmask) | (cs->c_type & local_n_tmask)) | |||
759 | && cs->c_secnum == N_DEBUG((short)-2)) | |||
760 | complete_symtab (filestring, 0, 0); | |||
761 | ||||
762 | /* Typedefs should not be treated as symbol definitions. */ | |||
763 | if (ISFCN (cs->c_type)(((unsigned long) (cs->c_type) & local_n_tmask) == ((unsigned long) (2) << local_n_btshft)) && cs->c_sclass != C_TPDEF13) | |||
764 | { | |||
765 | /* Record all functions -- external and static -- in minsyms. */ | |||
766 | tmpaddr = cs->c_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 766, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 766, "Section index is uninitialized"), -1) : objfile->section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c", 766, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]); | |||
767 | record_minimal_symbol (cs->c_name, tmpaddr, mst_text, objfile); | |||
768 | ||||
769 | fcn_line_ptr = main_aux.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |||
770 | fcn_start_addr = tmpaddr; | |||
771 | fcn_cs_saved = *cs; | |||
772 | fcn_sym_saved = main_sym; | |||
773 | fcn_aux_saved = main_aux; | |||
774 | continue; | |||
775 | } | |||
776 | ||||
777 | switch (cs->c_sclass) | |||
778 | { | |||
779 | case C_EFCN0xff: | |||
780 | case C_EXTDEF5: | |||
781 | case C_ULABEL7: | |||
782 | case C_USTATIC14: | |||
783 | case C_LINE104: | |||
784 | case C_ALIAS105: | |||
785 | case C_HIDDEN106: | |||
786 | complaint (&symfile_complaints, "Bad n_sclass for symbol %s", | |||
787 | cs->c_name); | |||
788 | break; | |||
789 | ||||
790 | case C_FILE103: | |||
791 | /* c_value field contains symnum of next .file entry in table | |||
792 | or symnum of first global after last .file. */ | |||
793 | next_file_symnum = cs->c_value; | |||
794 | if (cs->c_naux > 0) | |||
795 | filestring = coff_getfilename (&main_aux); | |||
796 | else | |||
797 | filestring = ""; | |||
798 | ||||
799 | /* Complete symbol table for last object file | |||
800 | containing debugging information. */ | |||
801 | if (last_source_file) | |||
802 | { | |||
803 | coff_end_symtab (objfile); | |||
804 | coff_start_symtab (filestring); | |||
805 | } | |||
806 | in_source_file = 1; | |||
807 | break; | |||
808 | ||||
809 | /* C_LABEL is used for labels and static functions. Including | |||
810 | it here allows gdb to see static functions when no debug | |||
811 | info is available. */ | |||
812 | case C_LABEL6: | |||
813 | /* However, labels within a function can make weird backtraces, | |||
814 | so filter them out (from phdm@macqel.be). */ | |||
815 | if (within_function) | |||
816 | break; | |||
817 | case C_STAT3: | |||
818 | case C_THUMBLABEL(128 + 6): | |||
819 | case C_THUMBSTAT(128 + 3): | |||
820 | case C_THUMBSTATFUNC((128 + 3) + 20): | |||
821 | if (cs->c_name[0] == '.') | |||
822 | { | |||
823 | if (DEPRECATED_STREQ (cs->c_name, ".text")(strcmp ((cs->c_name), (".text")) == 0)) | |||
824 | { | |||
825 | /* FIXME: don't wire in ".text" as section name | |||
826 | or symbol name! */ | |||
827 | /* Check for in_source_file deals with case of | |||
828 | a file with debugging symbols | |||
829 | followed by a later file with no symbols. */ | |||
830 | if (in_source_file) | |||
831 | complete_symtab (filestring, | |||
832 | cs->c_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 832, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 832, "Section index is uninitialized"), -1) : objfile->section_offsets ->offsets[((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c", 832, "sect_index_text not initialized" ), -1) : objfile->sect_index_text)]), | |||
833 | main_aux.x_scn.x_scnlen); | |||
834 | in_source_file = 0; | |||
835 | } | |||
836 | /* flush rest of '.' symbols */ | |||
837 | break; | |||
838 | } | |||
839 | else if (!SDB_TYPE (cs->c_type)(((cs->c_type) & local_n_btmask) | (cs->c_type & local_n_tmask)) | |||
840 | && cs->c_name[0] == 'L' | |||
841 | && (strncmp (cs->c_name, "LI%", 3) == 0 | |||
842 | || strncmp (cs->c_name, "LF%", 3) == 0 | |||
843 | || strncmp (cs->c_name, "LC%", 3) == 0 | |||
844 | || strncmp (cs->c_name, "LP%", 3) == 0 | |||
845 | || strncmp (cs->c_name, "LPB%", 4) == 0 | |||
846 | || strncmp (cs->c_name, "LBB%", 4) == 0 | |||
847 | || strncmp (cs->c_name, "LBE%", 4) == 0 | |||
848 | || strncmp (cs->c_name, "LPBX%", 5) == 0)) | |||
849 | /* At least on a 3b1, gcc generates swbeg and string labels | |||
850 | that look like this. Ignore them. */ | |||
851 | break; | |||
852 | /* fall in for static symbols that don't start with '.' */ | |||
853 | case C_THUMBEXT(128 + 2): | |||
854 | case C_THUMBEXTFUNC((128 + 2) + 20): | |||
855 | case C_EXT2: | |||
856 | { | |||
857 | /* Record it in the minimal symbols regardless of | |||
858 | SDB_TYPE. This parallels what we do for other debug | |||
859 | formats, and probably is needed to make | |||
860 | print_address_symbolic work right without the (now | |||
861 | gone) "set fast-symbolic-addr off" kludge. */ | |||
862 | ||||
863 | enum minimal_symbol_type ms_type; | |||
864 | int sec; | |||
865 | ||||
866 | if (cs->c_secnum == N_UNDEF((short)0)) | |||
867 | { | |||
868 | /* This is a common symbol. See if the target | |||
869 | environment knows where it has been relocated to. */ | |||
870 | CORE_ADDR reladdr; | |||
871 | if (target_lookup_symbol (cs->c_name, &reladdr)(*current_target.to_lookup_symbol) (cs->c_name, &reladdr )) | |||
872 | { | |||
873 | /* Error in lookup; ignore symbol. */ | |||
874 | break; | |||
875 | } | |||
876 | tmpaddr = reladdr; | |||
877 | /* The address has already been relocated; make sure that | |||
878 | objfile_relocate doesn't relocate it again. */ | |||
879 | sec = -2; | |||
880 | ms_type = cs->c_sclass == C_EXT2 | |||
881 | || cs->c_sclass == C_THUMBEXT(128 + 2) ? | |||
882 | mst_bss : mst_file_bss; | |||
883 | } | |||
884 | else if (cs->c_secnum == N_ABS((short)-1)) | |||
885 | { | |||
886 | /* Use the correct minimal symbol type (and don't | |||
887 | relocate) for absolute values. */ | |||
888 | ms_type = mst_abs; | |||
889 | sec = cs_to_section (cs, objfile); | |||
890 | tmpaddr = cs->c_value; | |||
891 | } | |||
892 | else | |||
893 | { | |||
894 | sec = cs_to_section (cs, objfile); | |||
895 | tmpaddr = cs->c_value; | |||
896 | /* Statics in a PE file also get relocated */ | |||
897 | if (cs->c_sclass == C_EXT2 | |||
898 | || cs->c_sclass == C_THUMBEXTFUNC((128 + 2) + 20) | |||
899 | || cs->c_sclass == C_THUMBEXT(128 + 2) | |||
900 | || (pe_file && (cs->c_sclass == C_STAT3))) | |||
901 | tmpaddr += ANOFFSET (objfile->section_offsets, sec)((sec == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 901, "Section index is uninitialized"), -1) : objfile->section_offsets ->offsets[sec]); | |||
902 | ||||
903 | if (sec == SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 903, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)) | |||
904 | { | |||
905 | ms_type = | |||
906 | cs->c_sclass == C_EXT2 || cs->c_sclass == C_THUMBEXTFUNC((128 + 2) + 20) | |||
907 | || cs->c_sclass == C_THUMBEXT(128 + 2) ? | |||
908 | mst_text : mst_file_text; | |||
909 | tmpaddr = SMASH_TEXT_ADDRESS (tmpaddr)(gdbarch_smash_text_address (current_gdbarch, tmpaddr)); | |||
910 | } | |||
911 | else if (sec == SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 911, "sect_index_data not initialized"), -1) : objfile-> sect_index_data)) | |||
912 | { | |||
913 | ms_type = | |||
914 | cs->c_sclass == C_EXT2 || cs->c_sclass == C_THUMBEXT(128 + 2) ? | |||
915 | mst_data : mst_file_data; | |||
916 | } | |||
917 | else if (sec == SECT_OFF_BSS (objfile)(objfile)->sect_index_bss) | |||
918 | { | |||
919 | ms_type = | |||
920 | cs->c_sclass == C_EXT2 || cs->c_sclass == C_THUMBEXT(128 + 2) ? | |||
921 | mst_data : mst_file_data; | |||
922 | } | |||
923 | else | |||
924 | ms_type = mst_unknown; | |||
925 | } | |||
926 | ||||
927 | if (cs->c_name[0] != '@' /* Skip tdesc symbols */ ) | |||
928 | { | |||
929 | struct minimal_symbol *msym; | |||
930 | msym = prim_record_minimal_symbol_and_info | |||
931 | (cs->c_name, tmpaddr, ms_type, NULL((void*)0), | |||
932 | sec, NULL((void*)0), objfile); | |||
933 | if (msym) | |||
934 | COFF_MAKE_MSYMBOL_SPECIAL (cs->c_sclass, msym)(gdbarch_coff_make_msymbol_special (current_gdbarch, cs->c_sclass , msym)); | |||
935 | } | |||
936 | if (SDB_TYPE (cs->c_type)(((cs->c_type) & local_n_btmask) | (cs->c_type & local_n_tmask))) | |||
937 | { | |||
938 | struct symbol *sym; | |||
939 | sym = process_coff_symbol | |||
940 | (cs, &main_aux, objfile); | |||
941 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue = tmpaddr; | |||
942 | SYMBOL_SECTION (sym)(sym)->ginfo.section = sec; | |||
943 | } | |||
944 | } | |||
945 | break; | |||
946 | ||||
947 | case C_FCN101: | |||
948 | if (DEPRECATED_STREQ (cs->c_name, ".bf")(strcmp ((cs->c_name), (".bf")) == 0)) | |||
949 | { | |||
950 | within_function = 1; | |||
951 | ||||
952 | /* value contains address of first non-init type code */ | |||
953 | /* main_aux.x_sym.x_misc.x_lnsz.x_lnno | |||
954 | contains line number of '{' } */ | |||
955 | if (cs->c_naux
| |||
956 | complaint (&symfile_complaints, | |||
957 | "`.bf' symbol %d has no aux entry", cs->c_symnum); | |||
958 | fcn_first_line = main_aux.x_sym.x_misc.x_lnsz.x_lnno; | |||
959 | fcn_first_line_addr = cs->c_value; | |||
960 | ||||
961 | /* Might want to check that locals are 0 and | |||
962 | context_stack_depth is zero, and complain if not. */ | |||
963 | ||||
964 | depth = 0; | |||
965 | new = push_context (depth, fcn_start_addr); | |||
966 | fcn_cs_saved.c_name = getsymname (&fcn_sym_saved); | |||
967 | new->name = | |||
968 | process_coff_symbol (&fcn_cs_saved, &fcn_aux_saved, objfile); | |||
969 | } | |||
970 | else if (DEPRECATED_STREQ (cs->c_name, ".ef")(strcmp ((cs->c_name), (".ef")) == 0)) | |||
971 | { | |||
972 | if (!within_function) | |||
973 | error ("Bad coff function information\n"); | |||
974 | /* the value of .ef is the address of epilogue code; | |||
975 | not useful for gdb. */ | |||
976 | /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno | |||
977 | contains number of lines to '}' */ | |||
978 | ||||
979 | if (context_stack_depth <= 0) | |||
980 | { /* We attempted to pop an empty context stack */ | |||
981 | complaint (&symfile_complaints, | |||
982 | "`.ef' symbol without matching `.bf' symbol ignored starting at symnum %d", | |||
983 | cs->c_symnum); | |||
984 | within_function = 0; | |||
985 | break; | |||
986 | } | |||
987 | ||||
988 | new = pop_context (); | |||
989 | /* Stack must be empty now. */ | |||
990 | if (context_stack_depth > 0 || new == NULL((void*)0)) | |||
991 | { | |||
992 | complaint (&symfile_complaints, | |||
993 | "Unmatched .ef symbol(s) ignored starting at symnum %d", | |||
994 | cs->c_symnum); | |||
995 | within_function = 0; | |||
996 | break; | |||
997 | } | |||
998 | if (cs->c_naux != 1) | |||
999 | { | |||
1000 | complaint (&symfile_complaints, | |||
1001 | "`.ef' symbol %d has no aux entry", cs->c_symnum); | |||
1002 | fcn_last_line = 0x7FFFFFFF; | |||
1003 | } | |||
1004 | else | |||
1005 | { | |||
1006 | fcn_last_line = main_aux.x_sym.x_misc.x_lnsz.x_lnno; | |||
1007 | } | |||
1008 | /* fcn_first_line is the line number of the opening '{'. | |||
1009 | Do not record it - because it would affect gdb's idea | |||
1010 | of the line number of the first statement of the function - | |||
1011 | except for one-line functions, for which it is also the line | |||
1012 | number of all the statements and of the closing '}', and | |||
1013 | for which we do not have any other statement-line-number. */ | |||
1014 | if (fcn_last_line == 1) | |||
1015 | record_line (current_subfile, fcn_first_line, | |||
1016 | fcn_first_line_addr); | |||
1017 | else | |||
1018 | enter_linenos (fcn_line_ptr, fcn_first_line, fcn_last_line, | |||
1019 | objfile); | |||
1020 | ||||
1021 | finish_block (new->name, &local_symbols, new->old_blocks, | |||
1022 | new->start_addr, | |||
1023 | #if defined (FUNCTION_EPILOGUE_SIZE) | |||
1024 | /* This macro should be defined only on | |||
1025 | machines where the | |||
1026 | fcn_aux_saved.x_sym.x_misc.x_fsize | |||
1027 | field is always zero. | |||
1028 | So use the .bf record information that | |||
1029 | points to the epilogue and add the size | |||
1030 | of the epilogue. */ | |||
1031 | cs->c_value | |||
1032 | + FUNCTION_EPILOGUE_SIZE | |||
1033 | + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1033, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1033, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1033, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]), | |||
1034 | #else | |||
1035 | fcn_cs_saved.c_value | |||
1036 | + fcn_aux_saved.x_sym.x_misc.x_fsize | |||
1037 | + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1037, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1037, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1037, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]), | |||
1038 | #endif | |||
1039 | objfile | |||
1040 | ); | |||
1041 | within_function = 0; | |||
1042 | } | |||
1043 | break; | |||
1044 | ||||
1045 | case C_BLOCK100: | |||
1046 | if (DEPRECATED_STREQ (cs->c_name, ".bb")(strcmp ((cs->c_name), (".bb")) == 0)) | |||
1047 | { | |||
1048 | tmpaddr = cs->c_value; | |||
1049 | tmpaddr += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1049, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1049, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1049, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1050 | push_context (++depth, tmpaddr); | |||
1051 | } | |||
1052 | else if (DEPRECATED_STREQ (cs->c_name, ".eb")(strcmp ((cs->c_name), (".eb")) == 0)) | |||
1053 | { | |||
1054 | if (context_stack_depth <= 0) | |||
1055 | { /* We attempted to pop an empty context stack */ | |||
1056 | complaint (&symfile_complaints, | |||
1057 | "`.eb' symbol without matching `.bb' symbol ignored starting at symnum %d", | |||
1058 | cs->c_symnum); | |||
1059 | break; | |||
1060 | } | |||
1061 | ||||
1062 | new = pop_context (); | |||
1063 | if (depth-- != new->depth) | |||
1064 | { | |||
1065 | complaint (&symfile_complaints, | |||
1066 | "Mismatched .eb symbol ignored starting at symnum %d", | |||
1067 | symnum); | |||
1068 | break; | |||
1069 | } | |||
1070 | if (local_symbols && context_stack_depth > 0) | |||
1071 | { | |||
1072 | tmpaddr = | |||
1073 | cs->c_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1073, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1073, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1073, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1074 | /* Make a block for the local symbols within. */ | |||
1075 | finish_block (0, &local_symbols, new->old_blocks, | |||
1076 | new->start_addr, tmpaddr, objfile); | |||
1077 | } | |||
1078 | /* Now pop locals of block just finished. */ | |||
1079 | local_symbols = new->locals; | |||
1080 | } | |||
1081 | break; | |||
1082 | ||||
1083 | default: | |||
1084 | process_coff_symbol (cs, &main_aux, objfile); | |||
1085 | break; | |||
1086 | } | |||
1087 | } | |||
1088 | ||||
1089 | if ((nsyms == 0) && (pe_file)) | |||
1090 | { | |||
1091 | /* We've got no debugging symbols, but it's is a portable | |||
1092 | executable, so try to read the export table */ | |||
1093 | read_pe_exported_syms (objfile); | |||
1094 | } | |||
1095 | ||||
1096 | if (last_source_file) | |||
1097 | coff_end_symtab (objfile); | |||
1098 | ||||
1099 | /* Patch up any opaque types (references to types that are not defined | |||
1100 | in the file where they are referenced, e.g. "struct foo *bar"). */ | |||
1101 | ALL_OBJFILE_SYMTABS (objfile, s)for ((s) = (objfile) -> symtabs; (s) != ((void*)0); (s) = ( s) -> next) | |||
1102 | patch_opaque_types (s); | |||
1103 | ||||
1104 | current_objfile = NULL((void*)0); | |||
1105 | } | |||
1106 | ||||
1107 | /* Routines for reading headers and symbols from executable. */ | |||
1108 | ||||
1109 | /* Read the next symbol, swap it, and return it in both internal_syment | |||
1110 | form, and coff_symbol form. Also return its first auxent, if any, | |||
1111 | in internal_auxent form, and skip any other auxents. */ | |||
1112 | ||||
1113 | static void | |||
1114 | read_one_sym (struct coff_symbol *cs, | |||
1115 | struct internal_syment *sym, | |||
1116 | union internal_auxent *aux) | |||
1117 | { | |||
1118 | int i; | |||
1119 | ||||
1120 | cs->c_symnum = symnum; | |||
1121 | bfd_bread (temp_sym, local_symesz, nlist_bfd_global); | |||
1122 | bfd_coff_swap_sym_in (symfile_bfd, temp_sym, (char *) sym)((((bfd_coff_backend_data *) (symfile_bfd)->xvec->backend_data )->_bfd_coff_swap_sym_in) (symfile_bfd,temp_sym,(char *) sym )); | |||
1123 | cs->c_naux = sym->n_numaux & 0xff; | |||
1124 | if (cs->c_naux >= 1) | |||
1125 | { | |||
1126 | bfd_bread (temp_aux, local_auxesz, nlist_bfd_global); | |||
1127 | bfd_coff_swap_aux_in (symfile_bfd, temp_aux, sym->n_type, sym->n_sclass,((((bfd_coff_backend_data *) (symfile_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (symfile_bfd,temp_aux,sym->n_type ,sym->n_sclass,0,cs->c_naux,(char *) aux)) | |||
1128 | 0, cs->c_naux, (char *) aux)((((bfd_coff_backend_data *) (symfile_bfd)->xvec->backend_data )->_bfd_coff_swap_aux_in) (symfile_bfd,temp_aux,sym->n_type ,sym->n_sclass,0,cs->c_naux,(char *) aux)); | |||
1129 | /* If more than one aux entry, read past it (only the first aux | |||
1130 | is important). */ | |||
1131 | for (i = 1; i < cs->c_naux; i++) | |||
1132 | bfd_bread (temp_aux, local_auxesz, nlist_bfd_global); | |||
1133 | } | |||
1134 | cs->c_name = getsymname (sym); | |||
1135 | cs->c_value = sym->n_value; | |||
1136 | cs->c_sclass = (sym->n_sclass & 0xff); | |||
1137 | cs->c_secnum = sym->n_scnum; | |||
1138 | cs->c_type = (unsigned) sym->n_type; | |||
1139 | if (!SDB_TYPE (cs->c_type)(((cs->c_type) & local_n_btmask) | (cs->c_type & local_n_tmask))) | |||
1140 | cs->c_type = 0; | |||
1141 | ||||
1142 | #if 0 | |||
1143 | if (cs->c_sclass & 128) | |||
1144 | printf ("thumb symbol %s, class 0x%x\n", cs->c_name, cs->c_sclass); | |||
1145 | #endif | |||
1146 | ||||
1147 | symnum += 1 + cs->c_naux; | |||
1148 | ||||
1149 | /* The PE file format stores symbol values as offsets within the | |||
1150 | section, rather than as absolute addresses. We correct that | |||
1151 | here, if the symbol has an appropriate storage class. FIXME: We | |||
1152 | should use BFD to read the symbols, rather than duplicating the | |||
1153 | work here. */ | |||
1154 | if (pe_file) | |||
1155 | { | |||
1156 | switch (cs->c_sclass) | |||
1157 | { | |||
1158 | case C_EXT2: | |||
1159 | case C_THUMBEXT(128 + 2): | |||
1160 | case C_THUMBEXTFUNC((128 + 2) + 20): | |||
1161 | case C_SECTION104: | |||
1162 | case C_NT_WEAK105: | |||
1163 | case C_STAT3: | |||
1164 | case C_THUMBSTAT(128 + 3): | |||
1165 | case C_THUMBSTATFUNC((128 + 3) + 20): | |||
1166 | case C_LABEL6: | |||
1167 | case C_THUMBLABEL(128 + 6): | |||
1168 | case C_BLOCK100: | |||
1169 | case C_FCN101: | |||
1170 | case C_EFCN0xff: | |||
1171 | if (cs->c_secnum != 0) | |||
1172 | cs->c_value += cs_section_address (cs, symfile_bfd); | |||
1173 | break; | |||
1174 | } | |||
1175 | } | |||
1176 | } | |||
1177 | ||||
1178 | /* Support for string table handling */ | |||
1179 | ||||
1180 | static char *stringtab = NULL((void*)0); | |||
1181 | ||||
1182 | static int | |||
1183 | init_stringtab (bfd *abfd, long offset) | |||
1184 | { | |||
1185 | long length; | |||
1186 | int val; | |||
1187 | unsigned char lengthbuf[4]; | |||
1188 | ||||
1189 | free_stringtab (); | |||
1190 | ||||
1191 | /* If the file is stripped, the offset might be zero, indicating no | |||
1192 | string table. Just return with `stringtab' set to null. */ | |||
1193 | if (offset == 0) | |||
1194 | return 0; | |||
1195 | ||||
1196 | if (bfd_seek (abfd, offset, 0) < 0) | |||
1197 | return -1; | |||
1198 | ||||
1199 | val = bfd_bread ((char *) lengthbuf, sizeof lengthbuf, abfd); | |||
1200 | length = bfd_h_get_32 (symfile_bfd, lengthbuf)((*((symfile_bfd)->xvec->bfd_h_getx32)) (lengthbuf)); | |||
1201 | ||||
1202 | /* If no string table is needed, then the file may end immediately | |||
1203 | after the symbols. Just return with `stringtab' set to null. */ | |||
1204 | if (val != sizeof lengthbuf || length < sizeof lengthbuf) | |||
1205 | return 0; | |||
1206 | ||||
1207 | stringtab = (char *) xmalloc (length); | |||
1208 | /* This is in target format (probably not very useful, and not currently | |||
1209 | used), not host format. */ | |||
1210 | memcpy (stringtab, lengthbuf, sizeof lengthbuf); | |||
1211 | if (length == sizeof length) /* Empty table -- just the count */ | |||
1212 | return 0; | |||
1213 | ||||
1214 | val = bfd_bread (stringtab + sizeof lengthbuf, length - sizeof lengthbuf, | |||
1215 | abfd); | |||
1216 | if (val != length - sizeof lengthbuf || stringtab[length - 1] != '\0') | |||
1217 | return -1; | |||
1218 | ||||
1219 | return 0; | |||
1220 | } | |||
1221 | ||||
1222 | static void | |||
1223 | free_stringtab (void) | |||
1224 | { | |||
1225 | if (stringtab) | |||
1226 | xfree (stringtab); | |||
1227 | stringtab = NULL((void*)0); | |||
1228 | } | |||
1229 | ||||
1230 | static void | |||
1231 | free_stringtab_cleanup (void *ignore) | |||
1232 | { | |||
1233 | free_stringtab (); | |||
1234 | } | |||
1235 | ||||
1236 | static char * | |||
1237 | getsymname (struct internal_syment *symbol_entry) | |||
1238 | { | |||
1239 | static char buffer[SYMNMLEN8 + 1]; | |||
1240 | char *result; | |||
1241 | ||||
1242 | if (symbol_entry->_n._n_n._n_zeroes == 0) | |||
1243 | { | |||
1244 | /* FIXME: Probably should be detecting corrupt symbol files by | |||
1245 | seeing whether offset points to within the stringtab. */ | |||
1246 | result = stringtab + symbol_entry->_n._n_n._n_offset; | |||
1247 | } | |||
1248 | else | |||
1249 | { | |||
1250 | strncpy (buffer, symbol_entry->_n._n_name, SYMNMLEN8); | |||
1251 | buffer[SYMNMLEN8] = '\0'; | |||
1252 | result = buffer; | |||
1253 | } | |||
1254 | return result; | |||
1255 | } | |||
1256 | ||||
1257 | /* Extract the file name from the aux entry of a C_FILE symbol. Return | |||
1258 | only the last component of the name. Result is in static storage and | |||
1259 | is only good for temporary use. */ | |||
1260 | ||||
1261 | static char * | |||
1262 | coff_getfilename (union internal_auxent *aux_entry) | |||
1263 | { | |||
1264 | static char buffer[BUFSIZ1024]; | |||
1265 | char *temp; | |||
1266 | char *result; | |||
1267 | ||||
1268 | if (aux_entry->x_file.x_n.x_zeroes == 0) | |||
1269 | strcpy (buffer, stringtab + aux_entry->x_file.x_n.x_offset); | |||
1270 | else | |||
1271 | { | |||
1272 | strncpy (buffer, aux_entry->x_file.x_fname, FILNMLEN14); | |||
1273 | buffer[FILNMLEN14] = '\0'; | |||
1274 | } | |||
1275 | result = buffer; | |||
1276 | ||||
1277 | /* FIXME: We should not be throwing away the information about what | |||
1278 | directory. It should go into dirname of the symtab, or some such | |||
1279 | place. */ | |||
1280 | if ((temp = strrchr (result, '/')) != NULL((void*)0)) | |||
1281 | result = temp + 1; | |||
1282 | return (result); | |||
1283 | } | |||
1284 | ||||
1285 | /* Support for line number handling. */ | |||
1286 | ||||
1287 | static char *linetab = NULL((void*)0); | |||
1288 | static long linetab_offset; | |||
1289 | static unsigned long linetab_size; | |||
1290 | ||||
1291 | /* Read in all the line numbers for fast lookups later. Leave them in | |||
1292 | external (unswapped) format in memory; we'll swap them as we enter | |||
1293 | them into GDB's data structures. */ | |||
1294 | ||||
1295 | static int | |||
1296 | init_lineno (bfd *abfd, long offset, int size) | |||
1297 | { | |||
1298 | int val; | |||
1299 | ||||
1300 | linetab_offset = offset; | |||
1301 | linetab_size = size; | |||
1302 | ||||
1303 | free_linetab (); | |||
1304 | ||||
1305 | if (size == 0) | |||
1306 | return 0; | |||
1307 | ||||
1308 | if (bfd_seek (abfd, offset, 0) < 0) | |||
1309 | return -1; | |||
1310 | ||||
1311 | /* Allocate the desired table, plus a sentinel */ | |||
1312 | linetab = (char *) xmalloc (size + local_linesz); | |||
1313 | ||||
1314 | val = bfd_bread (linetab, size, abfd); | |||
1315 | if (val != size) | |||
1316 | return -1; | |||
1317 | ||||
1318 | /* Terminate it with an all-zero sentinel record */ | |||
1319 | memset (linetab + size, 0, local_linesz); | |||
1320 | ||||
1321 | return 0; | |||
1322 | } | |||
1323 | ||||
1324 | static void | |||
1325 | free_linetab (void) | |||
1326 | { | |||
1327 | if (linetab) | |||
1328 | xfree (linetab); | |||
1329 | linetab = NULL((void*)0); | |||
1330 | } | |||
1331 | ||||
1332 | static void | |||
1333 | free_linetab_cleanup (void *ignore) | |||
1334 | { | |||
1335 | free_linetab (); | |||
1336 | } | |||
1337 | ||||
1338 | #if !defined (L_LNNO32) | |||
1339 | #define L_LNNO32(lp)((lp)->l_lnno) ((lp)->l_lnno) | |||
1340 | #endif | |||
1341 | ||||
1342 | static void | |||
1343 | enter_linenos (long file_offset, int first_line, | |||
1344 | int last_line, struct objfile *objfile) | |||
1345 | { | |||
1346 | char *rawptr; | |||
1347 | struct internal_lineno lptr; | |||
1348 | ||||
1349 | if (!linetab) | |||
1350 | return; | |||
1351 | if (file_offset < linetab_offset) | |||
1352 | { | |||
1353 | complaint (&symfile_complaints, | |||
1354 | "Line number pointer %ld lower than start of line numbers", | |||
1355 | file_offset); | |||
1356 | if (file_offset > linetab_size) /* Too big to be an offset? */ | |||
1357 | return; | |||
1358 | file_offset += linetab_offset; /* Try reading at that linetab offset */ | |||
1359 | } | |||
1360 | ||||
1361 | rawptr = &linetab[file_offset - linetab_offset]; | |||
1362 | ||||
1363 | /* skip first line entry for each function */ | |||
1364 | rawptr += local_linesz; | |||
1365 | /* line numbers start at one for the first line of the function */ | |||
1366 | first_line--; | |||
1367 | ||||
1368 | /* If the line number table is full (e.g. 64K lines in COFF debug | |||
1369 | info), the next function's L_LNNO32 might not be zero, so don't | |||
1370 | overstep the table's end in any case. */ | |||
1371 | while (rawptr <= &linetab[0] + linetab_size) | |||
1372 | { | |||
1373 | bfd_coff_swap_lineno_in (symfile_bfd, rawptr, &lptr)((((bfd_coff_backend_data *) (symfile_bfd)->xvec->backend_data )->_bfd_coff_swap_lineno_in) (symfile_bfd,rawptr,&lptr )); | |||
1374 | rawptr += local_linesz; | |||
1375 | /* The next function, or the sentinel, will have L_LNNO32 zero; | |||
1376 | we exit. */ | |||
1377 | if (L_LNNO32 (&lptr)((&lptr)->l_lnno) && L_LNNO32 (&lptr)((&lptr)->l_lnno) <= last_line) | |||
1378 | record_line (current_subfile, first_line + L_LNNO32 (&lptr)((&lptr)->l_lnno), | |||
1379 | lptr.l_addr.l_paddr | |||
1380 | + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1380, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1380, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1380, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)])); | |||
1381 | else | |||
1382 | break; | |||
1383 | } | |||
1384 | } | |||
1385 | ||||
1386 | static void | |||
1387 | patch_type (struct type *type, struct type *real_type) | |||
1388 | { | |||
1389 | struct type *target = TYPE_TARGET_TYPE (type)(type)->main_type->target_type; | |||
1390 | struct type *real_target = TYPE_TARGET_TYPE (real_type)(real_type)->main_type->target_type; | |||
1391 | int field_size = TYPE_NFIELDS (real_target)(real_target)->main_type->nfields * sizeof (struct field); | |||
1392 | ||||
1393 | TYPE_LENGTH (target)(target)->length = TYPE_LENGTH (real_target)(real_target)->length; | |||
1394 | TYPE_NFIELDS (target)(target)->main_type->nfields = TYPE_NFIELDS (real_target)(real_target)->main_type->nfields; | |||
1395 | TYPE_FIELDS (target)(target)->main_type->fields = (struct field *) TYPE_ALLOC (target, field_size)((target)->main_type->objfile != ((void*)0) ? __extension__ ({ struct obstack *__h = (&(target)->main_type->objfile -> objfile_obstack); __extension__ ({ struct obstack *__o = (__h); int __len = ((field_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; }); }) : xmalloc (field_size )); | |||
1396 | ||||
1397 | memcpy (TYPE_FIELDS (target)(target)->main_type->fields, TYPE_FIELDS (real_target)(real_target)->main_type->fields, field_size); | |||
1398 | ||||
1399 | if (TYPE_NAME (real_target)(real_target)->main_type->name) | |||
1400 | { | |||
1401 | if (TYPE_NAME (target)(target)->main_type->name) | |||
1402 | xfree (TYPE_NAME (target)(target)->main_type->name); | |||
1403 | TYPE_NAME (target)(target)->main_type->name = concat (TYPE_NAME (real_target)(real_target)->main_type->name, NULL((void*)0)); | |||
1404 | } | |||
1405 | } | |||
1406 | ||||
1407 | /* Patch up all appropriate typedef symbols in the opaque_type_chains | |||
1408 | so that they can be used to print out opaque data structures properly. */ | |||
1409 | ||||
1410 | static void | |||
1411 | patch_opaque_types (struct symtab *s) | |||
1412 | { | |||
1413 | struct block *b; | |||
1414 | struct dict_iterator iter; | |||
1415 | struct symbol *real_sym; | |||
1416 | ||||
1417 | /* Go through the per-file symbols only */ | |||
1418 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)((s)->blockvector)->block[STATIC_BLOCK]; | |||
1419 | ALL_BLOCK_SYMBOLS (b, iter, real_sym)for ((real_sym) = dict_iterator_first (((b)->dict), &( iter)); (real_sym); (real_sym) = dict_iterator_next (&(iter ))) | |||
1420 | { | |||
1421 | /* Find completed typedefs to use to fix opaque ones. | |||
1422 | Remove syms from the chain when their types are stored, | |||
1423 | but search the whole chain, as there may be several syms | |||
1424 | from different files with the same name. */ | |||
1425 | if (SYMBOL_CLASS (real_sym)(real_sym)->aclass == LOC_TYPEDEF && | |||
1426 | SYMBOL_DOMAIN (real_sym)(real_sym)->domain == VAR_DOMAIN && | |||
1427 | TYPE_CODE (SYMBOL_TYPE (real_sym))((real_sym)->type)->main_type->code == TYPE_CODE_PTR && | |||
1428 | TYPE_LENGTH (TYPE_TARGET_TYPE (SYMBOL_TYPE (real_sym)))(((real_sym)->type)->main_type->target_type)->length != 0) | |||
1429 | { | |||
1430 | char *name = DEPRECATED_SYMBOL_NAME (real_sym)(real_sym)->ginfo.name; | |||
1431 | int hash = hashname (name); | |||
1432 | struct symbol *sym, *prev; | |||
1433 | ||||
1434 | prev = 0; | |||
1435 | for (sym = opaque_type_chain[hash]; sym;) | |||
1436 | { | |||
1437 | if (name[0] == DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name[0] && | |||
1438 | strcmp (name + 1, DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name + 1) == 0) | |||
1439 | { | |||
1440 | if (prev) | |||
1441 | { | |||
1442 | SYMBOL_VALUE_CHAIN (prev)(prev)->ginfo.value.chain = SYMBOL_VALUE_CHAIN (sym)(sym)->ginfo.value.chain; | |||
1443 | } | |||
1444 | else | |||
1445 | { | |||
1446 | opaque_type_chain[hash] = SYMBOL_VALUE_CHAIN (sym)(sym)->ginfo.value.chain; | |||
1447 | } | |||
1448 | ||||
1449 | patch_type (SYMBOL_TYPE (sym)(sym)->type, SYMBOL_TYPE (real_sym)(real_sym)->type); | |||
1450 | ||||
1451 | if (prev) | |||
1452 | { | |||
1453 | sym = SYMBOL_VALUE_CHAIN (prev)(prev)->ginfo.value.chain; | |||
1454 | } | |||
1455 | else | |||
1456 | { | |||
1457 | sym = opaque_type_chain[hash]; | |||
1458 | } | |||
1459 | } | |||
1460 | else | |||
1461 | { | |||
1462 | prev = sym; | |||
1463 | sym = SYMBOL_VALUE_CHAIN (sym)(sym)->ginfo.value.chain; | |||
1464 | } | |||
1465 | } | |||
1466 | } | |||
1467 | } | |||
1468 | } | |||
1469 | ||||
1470 | static struct symbol * | |||
1471 | process_coff_symbol (struct coff_symbol *cs, | |||
1472 | union internal_auxent *aux, | |||
1473 | struct objfile *objfile) | |||
1474 | { | |||
1475 | struct symbol *sym | |||
1476 | = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct symbol))); 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; }); }) | |||
1477 | sizeof (struct symbol))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack ); __extension__ ({ struct obstack *__o = (__h); int __len = ( (sizeof (struct symbol))); 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; }); }); | |||
1478 | char *name; | |||
1479 | ||||
1480 | memset (sym, 0, sizeof (struct symbol)); | |||
1481 | name = cs->c_name; | |||
1482 | name = EXTERNAL_NAME (name, objfile->obfd)(name[0] == ((objfile->obfd)->xvec->symbol_leading_char )? name+1: name); | |||
1483 | SYMBOL_LANGUAGE (sym)(sym)->ginfo.language = language_auto; | |||
1484 | SYMBOL_SET_NAMES (sym, name, strlen (name), objfile)symbol_set_names (&(sym)->ginfo, name, strlen (name), objfile ); | |||
1485 | ||||
1486 | /* default assumptions */ | |||
1487 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue = cs->c_value; | |||
| ||||
1488 | SYMBOL_DOMAIN (sym)(sym)->domain = VAR_DOMAIN; | |||
1489 | SYMBOL_SECTION (sym)(sym)->ginfo.section = cs_to_section (cs, objfile); | |||
1490 | ||||
1491 | if (ISFCN (cs->c_type)(((unsigned long) (cs->c_type) & local_n_tmask) == ((unsigned long) (2) << local_n_btshft))) | |||
1492 | { | |||
1493 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1493, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1493, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1493, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1494 | SYMBOL_TYPE (sym)(sym)->type = | |||
1495 | lookup_function_type (decode_function_type (cs, cs->c_type, aux)); | |||
1496 | ||||
1497 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_BLOCK; | |||
1498 | if (cs->c_sclass == C_STAT3 || cs->c_sclass == C_THUMBSTAT(128 + 3) | |||
1499 | || cs->c_sclass == C_THUMBSTATFUNC((128 + 3) + 20)) | |||
1500 | add_symbol_to_list (sym, &file_symbols); | |||
1501 | else if (cs->c_sclass == C_EXT2 || cs->c_sclass == C_THUMBEXT(128 + 2) | |||
1502 | || cs->c_sclass == C_THUMBEXTFUNC((128 + 2) + 20)) | |||
1503 | add_symbol_to_list (sym, &global_symbols); | |||
1504 | } | |||
1505 | else | |||
1506 | { | |||
1507 | SYMBOL_TYPE (sym)(sym)->type = decode_type (cs, cs->c_type, aux); | |||
1508 | switch (cs->c_sclass) | |||
1509 | { | |||
1510 | case C_NULL0: | |||
1511 | break; | |||
1512 | ||||
1513 | case C_AUTO1: | |||
1514 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_LOCAL; | |||
1515 | add_symbol_to_list (sym, &local_symbols); | |||
1516 | break; | |||
1517 | ||||
1518 | case C_THUMBEXT(128 + 2): | |||
1519 | case C_THUMBEXTFUNC((128 + 2) + 20): | |||
1520 | case C_EXT2: | |||
1521 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_STATIC; | |||
1522 | SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address = (CORE_ADDR) cs->c_value; | |||
1523 | SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1523, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1523, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1523, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1524 | add_symbol_to_list (sym, &global_symbols); | |||
1525 | break; | |||
1526 | ||||
1527 | case C_THUMBSTAT(128 + 3): | |||
1528 | case C_THUMBSTATFUNC((128 + 3) + 20): | |||
1529 | case C_STAT3: | |||
1530 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_STATIC; | |||
1531 | SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address = (CORE_ADDR) cs->c_value; | |||
1532 | SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1532, "sect_index_text not initialized"), -1) : objfile-> sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1532, "Section index is uninitialized"), -1) : objfile-> section_offsets->offsets[((objfile->sect_index_text == - 1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/coffread.c" , 1532, "sect_index_text not initialized"), -1) : objfile-> sect_index_text)]); | |||
1533 | if (within_function) | |||
1534 | { | |||
1535 | /* Static symbol of local scope */ | |||
1536 | add_symbol_to_list (sym, &local_symbols); | |||
1537 | } | |||
1538 | else | |||
1539 | { | |||
1540 | /* Static symbol at top level of file */ | |||
1541 | add_symbol_to_list (sym, &file_symbols); | |||
1542 | } | |||
1543 | break; | |||
1544 | ||||
1545 | #ifdef C_GLBLREG /* AMD coff */ | |||
1546 | case C_GLBLREG: | |||
1547 | #endif | |||
1548 | case C_REG4: | |||
1549 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_REGISTER; | |||
1550 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue = SDB_REG_TO_REGNUM (cs->c_value)(gdbarch_sdb_reg_to_regnum (current_gdbarch, cs->c_value)); | |||
1551 | add_symbol_to_list (sym, &local_symbols); | |||
1552 | break; | |||
1553 | ||||
1554 | case C_THUMBLABEL(128 + 6): | |||
1555 | case C_LABEL6: | |||
1556 | break; | |||
1557 | ||||
1558 | case C_ARG9: | |||
1559 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_ARG; | |||
1560 | add_symbol_to_list (sym, &local_symbols); | |||
1561 | #if !defined (BELIEVE_PCC_PROMOTION(gdbarch_believe_pcc_promotion (current_gdbarch))) | |||
1562 | if (TARGET_BYTE_ORDER(gdbarch_byte_order (current_gdbarch)) == BFD_ENDIAN_BIG) | |||
1563 | { | |||
1564 | /* If PCC says a parameter is a short or a char, | |||
1565 | aligned on an int boundary, realign it to the | |||
1566 | "little end" of the int. */ | |||
1567 | struct type *temptype; | |||
1568 | temptype = lookup_fundamental_type (current_objfile, | |||
1569 | FT_INTEGER8); | |||
1570 | if (TYPE_LENGTH (SYMBOL_TYPE (sym))((sym)->type)->length < TYPE_LENGTH (temptype)(temptype)->length | |||
1571 | && TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_INT | |||
1572 | && 0 == SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue % TYPE_LENGTH (temptype)(temptype)->length) | |||
1573 | { | |||
1574 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue += | |||
1575 | TYPE_LENGTH (temptype)(temptype)->length | |||
1576 | - TYPE_LENGTH (SYMBOL_TYPE (sym))((sym)->type)->length; | |||
1577 | } | |||
1578 | } | |||
1579 | #endif | |||
1580 | break; | |||
1581 | ||||
1582 | case C_REGPARM17: | |||
1583 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_REGPARM; | |||
1584 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue = SDB_REG_TO_REGNUM (cs->c_value)(gdbarch_sdb_reg_to_regnum (current_gdbarch, cs->c_value)); | |||
1585 | add_symbol_to_list (sym, &local_symbols); | |||
1586 | #if !defined (BELIEVE_PCC_PROMOTION(gdbarch_believe_pcc_promotion (current_gdbarch))) | |||
1587 | /* FIXME: This should retain the current type, since it's just | |||
1588 | a register value. gnu@adobe, 26Feb93 */ | |||
1589 | { | |||
1590 | /* If PCC says a parameter is a short or a char, | |||
1591 | it is really an int. */ | |||
1592 | struct type *temptype; | |||
1593 | temptype = | |||
1594 | lookup_fundamental_type (current_objfile, FT_INTEGER8); | |||
1595 | if (TYPE_LENGTH (SYMBOL_TYPE (sym))((sym)->type)->length < TYPE_LENGTH (temptype)(temptype)->length | |||
1596 | && TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_INT) | |||
1597 | { | |||
1598 | SYMBOL_TYPE (sym)(sym)->type = | |||
1599 | (TYPE_UNSIGNED (SYMBOL_TYPE (sym))(((sym)->type)->main_type->flags & (1 << 0 )) | |||
1600 | ? lookup_fundamental_type (current_objfile, | |||
1601 | FT_UNSIGNED_INTEGER10) | |||
1602 | : temptype); | |||
1603 | } | |||
1604 | } | |||
1605 | #endif | |||
1606 | break; | |||
1607 | ||||
1608 | case C_TPDEF13: | |||
1609 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_TYPEDEF; | |||
1610 | SYMBOL_DOMAIN (sym)(sym)->domain = VAR_DOMAIN; | |||
1611 | ||||
1612 | /* If type has no name, give it one */ | |||
1613 | if (TYPE_NAME (SYMBOL_TYPE (sym))((sym)->type)->main_type->name == 0) | |||
1614 | { | |||
1615 | if (TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_PTR | |||
1616 | || TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_FUNC) | |||
1617 | { | |||
1618 | /* If we are giving a name to a type such as "pointer to | |||
1619 | foo" or "function returning foo", we better not set | |||
1620 | the TYPE_NAME. If the program contains "typedef char | |||
1621 | *caddr_t;", we don't want all variables of type char | |||
1622 | * to print as caddr_t. This is not just a | |||
1623 | consequence of GDB's type management; CC and GCC (at | |||
1624 | least through version 2.4) both output variables of | |||
1625 | either type char * or caddr_t with the type | |||
1626 | refering to the C_TPDEF symbol for caddr_t. If a future | |||
1627 | compiler cleans this up it GDB is not ready for it | |||
1628 | yet, but if it becomes ready we somehow need to | |||
1629 | disable this check (without breaking the PCC/GCC2.4 | |||
1630 | case). | |||
1631 | ||||
1632 | Sigh. | |||
1633 | ||||
1634 | Fortunately, this check seems not to be necessary | |||
1635 | for anything except pointers or functions. */ | |||
1636 | ; | |||
1637 | } | |||
1638 | else | |||
1639 | TYPE_NAME (SYMBOL_TYPE (sym))((sym)->type)->main_type->name = | |||
1640 | concat (DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, NULL((void*)0)); | |||
1641 | } | |||
1642 | ||||
1643 | /* Keep track of any type which points to empty structured type, | |||
1644 | so it can be filled from a definition from another file. A | |||
1645 | simple forward reference (TYPE_CODE_UNDEF) is not an | |||
1646 | empty structured type, though; the forward references | |||
1647 | work themselves out via the magic of coff_lookup_type. */ | |||
1648 | if (TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_PTR && | |||
1649 | TYPE_LENGTH (TYPE_TARGET_TYPE (SYMBOL_TYPE (sym)))(((sym)->type)->main_type->target_type)->length == 0 && | |||
1650 | TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (sym)))(((sym)->type)->main_type->target_type)->main_type ->code != | |||
1651 | TYPE_CODE_UNDEF) | |||
1652 | { | |||
1653 | int i = hashname (DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); | |||
1654 | ||||
1655 | SYMBOL_VALUE_CHAIN (sym)(sym)->ginfo.value.chain = opaque_type_chain[i]; | |||
1656 | opaque_type_chain[i] = sym; | |||
1657 | } | |||
1658 | add_symbol_to_list (sym, &file_symbols); | |||
1659 | break; | |||
1660 | ||||
1661 | case C_STRTAG10: | |||
1662 | case C_UNTAG12: | |||
1663 | case C_ENTAG15: | |||
1664 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_TYPEDEF; | |||
1665 | SYMBOL_DOMAIN (sym)(sym)->domain = STRUCT_DOMAIN; | |||
1666 | ||||
1667 | /* Some compilers try to be helpful by inventing "fake" | |||
1668 | names for anonymous enums, structures, and unions, like | |||
1669 | "~0fake" or ".0fake". Thanks, but no thanks... */ | |||
1670 | if (TYPE_TAG_NAME (SYMBOL_TYPE (sym))((sym)->type)->main_type->tag_name == 0) | |||
1671 | if (DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name != NULL((void*)0) | |||
1672 | && *DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name != '~' | |||
1673 | && *DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name != '.') | |||
1674 | TYPE_TAG_NAME (SYMBOL_TYPE (sym))((sym)->type)->main_type->tag_name = | |||
1675 | concat (DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, NULL((void*)0)); | |||
1676 | ||||
1677 | add_symbol_to_list (sym, &file_symbols); | |||
1678 | break; | |||
1679 | ||||
1680 | default: | |||
1681 | break; | |||
1682 | } | |||
1683 | } | |||
1684 | return sym; | |||
1685 | } | |||
1686 | ||||
1687 | /* Decode a coff type specifier; return the type that is meant. */ | |||
1688 | ||||
1689 | static struct type * | |||
1690 | decode_type (struct coff_symbol *cs, unsigned int c_type, | |||
1691 | union internal_auxent *aux) | |||
1692 | { | |||
1693 | struct type *type = 0; | |||
1694 | unsigned int new_c_type; | |||
1695 | ||||
1696 | if (c_type & ~N_BTMASKlocal_n_btmask) | |||
1697 | { | |||
1698 | new_c_type = DECREF (c_type)((((c_type) >> local_n_tshift) & ~ local_n_btmask) | ((c_type) & local_n_btmask)); | |||
1699 | if (ISPTR (c_type)(((unsigned long) (c_type) & local_n_tmask) == ((unsigned long) (1) << local_n_btshft))) | |||
1700 | { | |||
1701 | type = decode_type (cs, new_c_type, aux); | |||
1702 | type = lookup_pointer_type (type); | |||
1703 | } | |||
1704 | else if (ISFCN (c_type)(((unsigned long) (c_type) & local_n_tmask) == ((unsigned long) (2) << local_n_btshft))) | |||
1705 | { | |||
1706 | type = decode_type (cs, new_c_type, aux); | |||
1707 | type = lookup_function_type (type); | |||
1708 | } | |||
1709 | else if (ISARY (c_type)(((unsigned long) (c_type) & local_n_tmask) == ((unsigned long) (3) << local_n_btshft))) | |||
1710 | { | |||
1711 | int i, n; | |||
1712 | unsigned short *dim; | |||
1713 | struct type *base_type, *index_type, *range_type; | |||
1714 | ||||
1715 | /* Define an array type. */ | |||
1716 | /* auxent refers to array, not base type */ | |||
1717 | if (aux->x_sym.x_tagndx.l == 0) | |||
1718 | cs->c_naux = 0; | |||
1719 | ||||
1720 | /* shift the indices down */ | |||
1721 | dim = &aux->x_sym.x_fcnary.x_ary.x_dimen[0]; | |||
1722 | i = 1; | |||
1723 | n = dim[0]; | |||
1724 | for (i = 0; *dim && i < DIMNUM4 - 1; i++, dim++) | |||
1725 | *dim = *(dim + 1); | |||
1726 | *dim = 0; | |||
1727 | ||||
1728 | base_type = decode_type (cs, new_c_type, aux); | |||
1729 | index_type = lookup_fundamental_type (current_objfile, FT_INTEGER8); | |||
1730 | range_type = | |||
1731 | create_range_type ((struct type *) NULL((void*)0), index_type, 0, n - 1); | |||
1732 | type = | |||
1733 | create_array_type ((struct type *) NULL((void*)0), base_type, range_type); | |||
1734 | } | |||
1735 | return type; | |||
1736 | } | |||
1737 | ||||
1738 | /* Reference to existing type. This only occurs with the | |||
1739 | struct, union, and enum types. EPI a29k coff | |||
1740 | fakes us out by producing aux entries with a nonzero | |||
1741 | x_tagndx for definitions of structs, unions, and enums, so we | |||
1742 | have to check the c_sclass field. SCO 3.2v4 cc gets confused | |||
1743 | with pointers to pointers to defined structs, and generates | |||
1744 | negative x_tagndx fields. */ | |||
1745 | if (cs->c_naux > 0 && aux->x_sym.x_tagndx.l != 0) | |||
1746 | { | |||
1747 | if (cs->c_sclass != C_STRTAG10 | |||
1748 | && cs->c_sclass != C_UNTAG12 | |||
1749 | && cs->c_sclass != C_ENTAG15 | |||
1750 | && aux->x_sym.x_tagndx.l >= 0) | |||
1751 | { | |||
1752 | type = coff_alloc_type (aux->x_sym.x_tagndx.l); | |||
1753 | return type; | |||
1754 | } | |||
1755 | else | |||
1756 | { | |||
1757 | complaint (&symfile_complaints, | |||
1758 | "Symbol table entry for %s has bad tagndx value", | |||
1759 | cs->c_name); | |||
1760 | /* And fall through to decode_base_type... */ | |||
1761 | } | |||
1762 | } | |||
1763 | ||||
1764 | return decode_base_type (cs, BTYPE (c_type)((c_type) & local_n_btmask), aux); | |||
1765 | } | |||
1766 | ||||
1767 | /* Decode a coff type specifier for function definition; | |||
1768 | return the type that the function returns. */ | |||
1769 | ||||
1770 | static struct type * | |||
1771 | decode_function_type (struct coff_symbol *cs, unsigned int c_type, | |||
1772 | union internal_auxent *aux) | |||
1773 | { | |||
1774 | if (aux->x_sym.x_tagndx.l == 0) | |||
1775 | cs->c_naux = 0; /* auxent refers to function, not base type */ | |||
1776 | ||||
1777 | return decode_type (cs, DECREF (c_type)((((c_type) >> local_n_tshift) & ~ local_n_btmask) | ((c_type) & local_n_btmask)), aux); | |||
1778 | } | |||
1779 | ||||
1780 | /* basic C types */ | |||
1781 | ||||
1782 | static struct type * | |||
1783 | decode_base_type (struct coff_symbol *cs, unsigned int c_type, | |||
1784 | union internal_auxent *aux) | |||
1785 | { | |||
1786 | struct type *type; | |||
1787 | ||||
1788 | switch (c_type) | |||
1789 | { | |||
1790 | case T_NULL0: | |||
1791 | /* shows up with "void (*foo)();" structure members */ | |||
1792 | return lookup_fundamental_type (current_objfile, FT_VOID0); | |||
1793 | ||||
1794 | #ifdef T_VOID1 | |||
1795 | case T_VOID1: | |||
1796 | /* Intel 960 COFF has this symbol and meaning. */ | |||
1797 | return lookup_fundamental_type (current_objfile, FT_VOID0); | |||
1798 | #endif | |||
1799 | ||||
1800 | case T_CHAR2: | |||
1801 | return lookup_fundamental_type (current_objfile, FT_CHAR2); | |||
1802 | ||||
1803 | case T_SHORT3: | |||
1804 | return lookup_fundamental_type (current_objfile, FT_SHORT5); | |||
1805 | ||||
1806 | case T_INT4: | |||
1807 | return lookup_fundamental_type (current_objfile, FT_INTEGER8); | |||
1808 | ||||
1809 | case T_LONG5: | |||
1810 | if (cs->c_sclass == C_FIELD18 | |||
1811 | && aux->x_sym.x_misc.x_lnsz.x_size > TARGET_LONG_BIT(gdbarch_long_bit (current_gdbarch))) | |||
1812 | return lookup_fundamental_type (current_objfile, FT_LONG_LONG14); | |||
1813 | else | |||
1814 | return lookup_fundamental_type (current_objfile, FT_LONG11); | |||
1815 | ||||
1816 | case T_FLOAT6: | |||
1817 | return lookup_fundamental_type (current_objfile, FT_FLOAT17); | |||
1818 | ||||
1819 | case T_DOUBLE7: | |||
1820 | return lookup_fundamental_type (current_objfile, FT_DBL_PREC_FLOAT18); | |||
1821 | ||||
1822 | case T_LNGDBL16: | |||
1823 | return lookup_fundamental_type (current_objfile, FT_EXT_PREC_FLOAT19); | |||
1824 | ||||
1825 | case T_STRUCT8: | |||
1826 | if (cs->c_naux != 1) | |||
1827 | { | |||
1828 | /* anonymous structure type */ | |||
1829 | type = coff_alloc_type (cs->c_symnum); | |||
1830 | TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_STRUCT; | |||
1831 | TYPE_NAME (type)(type)->main_type->name = NULL((void*)0); | |||
1832 | /* This used to set the tag to "<opaque>". But I think setting it | |||
1833 | to NULL is right, and the printing code can print it as | |||
1834 | "struct {...}". */ | |||
1835 | TYPE_TAG_NAME (type)(type)->main_type->tag_name = NULL((void*)0); | |||
1836 | INIT_CPLUS_SPECIFIC (type)((type)->main_type->type_specific.cplus_stuff=(struct cplus_struct_type *)&cplus_struct_default); | |||
1837 | TYPE_LENGTH (type)(type)->length = 0; | |||
1838 | TYPE_FIELDS (type)(type)->main_type->fields = 0; | |||
1839 | TYPE_NFIELDS (type)(type)->main_type->nfields = 0; | |||
1840 | } | |||
1841 | else | |||
1842 | { | |||
1843 | type = coff_read_struct_type (cs->c_symnum, | |||
1844 | aux->x_sym.x_misc.x_lnsz.x_size, | |||
1845 | aux->x_sym.x_fcnary.x_fcn.x_endndx.l); | |||
1846 | } | |||
1847 | return type; | |||
1848 | ||||
1849 | case T_UNION9: | |||
1850 | if (cs->c_naux != 1) | |||
1851 | { | |||
1852 | /* anonymous union type */ | |||
1853 | type = coff_alloc_type (cs->c_symnum); | |||
1854 | TYPE_NAME (type)(type)->main_type->name = NULL((void*)0); | |||
1855 | /* This used to set the tag to "<opaque>". But I think setting it | |||
1856 | to NULL is right, and the printing code can print it as | |||
1857 | "union {...}". */ | |||
1858 | TYPE_TAG_NAME (type)(type)->main_type->tag_name = NULL((void*)0); | |||
1859 | INIT_CPLUS_SPECIFIC (type)((type)->main_type->type_specific.cplus_stuff=(struct cplus_struct_type *)&cplus_struct_default); | |||
1860 | TYPE_LENGTH (type)(type)->length = 0; | |||
1861 | TYPE_FIELDS (type)(type)->main_type->fields = 0; | |||
1862 | TYPE_NFIELDS (type)(type)->main_type->nfields = 0; | |||
1863 | } | |||
1864 | else | |||
1865 | { | |||
1866 | type = coff_read_struct_type (cs->c_symnum, | |||
1867 | aux->x_sym.x_misc.x_lnsz.x_size, | |||
1868 | aux->x_sym.x_fcnary.x_fcn.x_endndx.l); | |||
1869 | } | |||
1870 | TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_UNION; | |||
1871 | return type; | |||
1872 | ||||
1873 | case T_ENUM10: | |||
1874 | if (cs->c_naux != 1) | |||
1875 | { | |||
1876 | /* anonymous enum type */ | |||
1877 | type = coff_alloc_type (cs->c_symnum); | |||
1878 | TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_ENUM; | |||
1879 | TYPE_NAME (type)(type)->main_type->name = NULL((void*)0); | |||
1880 | /* This used to set the tag to "<opaque>". But I think setting it | |||
1881 | to NULL is right, and the printing code can print it as | |||
1882 | "enum {...}". */ | |||
1883 | TYPE_TAG_NAME (type)(type)->main_type->tag_name = NULL((void*)0); | |||
1884 | TYPE_LENGTH (type)(type)->length = 0; | |||
1885 | TYPE_FIELDS (type)(type)->main_type->fields = 0; | |||
1886 | TYPE_NFIELDS (type)(type)->main_type->nfields = 0; | |||
1887 | } | |||
1888 | else | |||
1889 | { | |||
1890 | type = coff_read_enum_type (cs->c_symnum, | |||
1891 | aux->x_sym.x_misc.x_lnsz.x_size, | |||
1892 | aux->x_sym.x_fcnary.x_fcn.x_endndx.l); | |||
1893 | } | |||
1894 | return type; | |||
1895 | ||||
1896 | case T_MOE11: | |||
1897 | /* shouldn't show up here */ | |||
1898 | break; | |||
1899 | ||||
1900 | case T_UCHAR12: | |||
1901 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_CHAR4); | |||
1902 | ||||
1903 | case T_USHORT13: | |||
1904 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_SHORT7); | |||
1905 | ||||
1906 | case T_UINT14: | |||
1907 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER10); | |||
1908 | ||||
1909 | case T_ULONG15: | |||
1910 | if (cs->c_sclass == C_FIELD18 | |||
1911 | && aux->x_sym.x_misc.x_lnsz.x_size > TARGET_LONG_BIT(gdbarch_long_bit (current_gdbarch))) | |||
1912 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG_LONG16); | |||
1913 | else | |||
1914 | return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG13); | |||
1915 | } | |||
1916 | complaint (&symfile_complaints, "Unexpected type for symbol %s", cs->c_name); | |||
1917 | return lookup_fundamental_type (current_objfile, FT_VOID0); | |||
1918 | } | |||
1919 | ||||
1920 | /* This page contains subroutines of read_type. */ | |||
1921 | ||||
1922 | /* Read the description of a structure (or union type) and return an | |||
1923 | object describing the type. */ | |||
1924 | ||||
1925 | static struct type * | |||
1926 | coff_read_struct_type (int index, int length, int lastsym) | |||
1927 | { | |||
1928 | struct nextfield | |||
1929 | { | |||
1930 | struct nextfield *next; | |||
1931 | struct field field; | |||
1932 | }; | |||
1933 | ||||
1934 | struct type *type; | |||
1935 | struct nextfield *list = 0; | |||
1936 | struct nextfield *new; | |||
1937 | int nfields = 0; | |||
1938 | int n; | |||
1939 | char *name; | |||
1940 | struct coff_symbol member_sym; | |||
1941 | struct coff_symbol *ms = &member_sym; | |||
1942 | struct internal_syment sub_sym; | |||
1943 | union internal_auxent sub_aux; | |||
1944 | int done = 0; | |||
1945 | ||||
1946 | type = coff_alloc_type (index); | |||
1947 | TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_STRUCT; | |||
1948 | INIT_CPLUS_SPECIFIC (type)((type)->main_type->type_specific.cplus_stuff=(struct cplus_struct_type *)&cplus_struct_default); | |||
1949 | TYPE_LENGTH (type)(type)->length = length; | |||
1950 | ||||
1951 | while (!done && symnum < lastsym && symnum < nlist_nsyms_global) | |||
1952 | { | |||
1953 | read_one_sym (ms, &sub_sym, &sub_aux); | |||
1954 | name = ms->c_name; | |||
1955 | name = EXTERNAL_NAME (name, current_objfile->obfd)(name[0] == ((current_objfile->obfd)->xvec->symbol_leading_char )? name+1: name); | |||
1956 | ||||
1957 | switch (ms->c_sclass) | |||
1958 | { | |||
1959 | case C_MOS8: | |||
1960 | case C_MOU11: | |||
1961 | ||||
1962 | /* Get space to record the next field's data. */ | |||
1963 | new = (struct nextfield *) alloca (sizeof (struct nextfield))__builtin_alloca(sizeof (struct nextfield)); | |||
1964 | new->next = list; | |||
1965 | list = new; | |||
1966 | ||||
1967 | /* Save the data. */ | |||
1968 | list->field.name = | |||
1969 | obsavestring (name, | |||
1970 | strlen (name), | |||
1971 | ¤t_objfile->objfile_obstack); | |||
1972 | FIELD_TYPE (list->field)((list->field).type) = decode_type (ms, ms->c_type, &sub_aux); | |||
1973 | FIELD_BITPOS (list->field)((list->field).loc.bitpos) = 8 * ms->c_value; | |||
1974 | FIELD_BITSIZE (list->field)((list->field).bitsize) = 0; | |||
1975 | FIELD_STATIC_KIND (list->field)((list->field).static_kind) = 0; | |||
1976 | nfields++; | |||
1977 | break; | |||
1978 | ||||
1979 | case C_FIELD18: | |||
1980 | ||||
1981 | /* Get space to record the next field's data. */ | |||
1982 | new = (struct nextfield *) alloca (sizeof (struct nextfield))__builtin_alloca(sizeof (struct nextfield)); | |||
1983 | new->next = list; | |||
1984 | list = new; | |||
1985 | ||||
1986 | /* Save the data. */ | |||
1987 | list->field.name = | |||
1988 | obsavestring (name, | |||
1989 | strlen (name), | |||
1990 | ¤t_objfile->objfile_obstack); | |||
1991 | FIELD_TYPE (list->field)((list->field).type) = decode_type (ms, ms->c_type, &sub_aux); | |||
1992 | FIELD_BITPOS (list->field)((list->field).loc.bitpos) = ms->c_value; | |||
1993 | FIELD_BITSIZE (list->field)((list->field).bitsize) = sub_aux.x_sym.x_misc.x_lnsz.x_size; | |||
1994 | FIELD_STATIC_KIND (list->field)((list->field).static_kind) = 0; | |||
1995 | nfields++; | |||
1996 | break; | |||
1997 | ||||
1998 | case C_EOS102: | |||
1999 | done = 1; | |||
2000 | break; | |||
2001 | } | |||
2002 | } | |||
2003 | /* Now create the vector of fields, and record how big it is. */ | |||
2004 | ||||
2005 | TYPE_NFIELDS (type)(type)->main_type->nfields = nfields; | |||
2006 | TYPE_FIELDS (type)(type)->main_type->fields = (struct field *) | |||
2007 | TYPE_ALLOC (type, sizeof (struct field) * nfields)((type)->main_type->objfile != ((void*)0) ? __extension__ ({ struct obstack *__h = (&(type)->main_type->objfile -> objfile_obstack); __extension__ ({ struct obstack *__o = (__h); int __len = ((sizeof (struct field) * nfields)); 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; }); }) : xmalloc (sizeof (struct field) * nfields)); | |||
2008 | ||||
2009 | /* Copy the saved-up fields into the field vector. */ | |||
2010 | ||||
2011 | for (n = nfields; list; list = list->next) | |||
2012 | TYPE_FIELD (type, --n)(type)->main_type->fields[--n] = list->field; | |||
2013 | ||||
2014 | return type; | |||
2015 | } | |||
2016 | ||||
2017 | /* Read a definition of an enumeration type, | |||
2018 | and create and return a suitable type object. | |||
2019 | Also defines the symbols that represent the values of the type. */ | |||
2020 | ||||
2021 | static struct type * | |||
2022 | coff_read_enum_type (int index, int length, int lastsym) | |||
2023 | { | |||
2024 | struct symbol *sym; | |||
2025 | struct type *type; | |||
2026 | int nsyms = 0; | |||
2027 | int done = 0; | |||
2028 | struct pending **symlist; | |||
2029 | struct coff_symbol member_sym; | |||
2030 | struct coff_symbol *ms = &member_sym; | |||
2031 | struct internal_syment sub_sym; | |||
2032 | union internal_auxent sub_aux; | |||
2033 | struct pending *osyms, *syms; | |||
2034 | int o_nsyms; | |||
2035 | int n; | |||
2036 | char *name; | |||
2037 | int unsigned_enum = 1; | |||
2038 | ||||
2039 | type = coff_alloc_type (index); | |||
2040 | if (within_function) | |||
2041 | symlist = &local_symbols; | |||
2042 | else | |||
2043 | symlist = &file_symbols; | |||
2044 | osyms = *symlist; | |||
2045 | o_nsyms = osyms ? osyms->nsyms : 0; | |||
2046 | ||||
2047 | while (!done && symnum < lastsym && symnum < nlist_nsyms_global) | |||
2048 | { | |||
2049 | read_one_sym (ms, &sub_sym, &sub_aux); | |||
2050 | name = ms->c_name; | |||
2051 | name = EXTERNAL_NAME (name, current_objfile->obfd)(name[0] == ((current_objfile->obfd)->xvec->symbol_leading_char )? name+1: name); | |||
2052 | ||||
2053 | switch (ms->c_sclass) | |||
2054 | { | |||
2055 | case C_MOE16: | |||
2056 | sym = (struct symbol *) obstack_alloc__extension__ ({ struct obstack *__h = (¤t_objfile-> objfile_obstack); __extension__ ({ struct obstack *__o = (__h ); int __len = ((sizeof (struct symbol))); 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; }); }) | |||
2057 | (¤t_objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (¤t_objfile-> objfile_obstack); __extension__ ({ struct obstack *__o = (__h ); int __len = ((sizeof (struct symbol))); 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; }); }) | |||
2058 | sizeof (struct symbol))__extension__ ({ struct obstack *__h = (¤t_objfile-> objfile_obstack); __extension__ ({ struct obstack *__o = (__h ); int __len = ((sizeof (struct symbol))); 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; }); }); | |||
2059 | memset (sym, 0, sizeof (struct symbol)); | |||
2060 | ||||
2061 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name = | |||
2062 | obsavestring (name, strlen (name), | |||
2063 | ¤t_objfile->objfile_obstack); | |||
2064 | SYMBOL_CLASS (sym)(sym)->aclass = LOC_CONST; | |||
2065 | SYMBOL_DOMAIN (sym)(sym)->domain = VAR_DOMAIN; | |||
2066 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue = ms->c_value; | |||
2067 | add_symbol_to_list (sym, symlist); | |||
2068 | nsyms++; | |||
2069 | break; | |||
2070 | ||||
2071 | case C_EOS102: | |||
2072 | /* Sometimes the linker (on 386/ix 2.0.2 at least) screws | |||
2073 | up the count of how many symbols to read. So stop | |||
2074 | on .eos. */ | |||
2075 | done = 1; | |||
2076 | break; | |||
2077 | } | |||
2078 | } | |||
2079 | ||||
2080 | /* Now fill in the fields of the type-structure. */ | |||
2081 | ||||
2082 | if (length > 0) | |||
2083 | TYPE_LENGTH (type)(type)->length = length; | |||
2084 | else | |||
2085 | TYPE_LENGTH (type)(type)->length = TARGET_INT_BIT(gdbarch_int_bit (current_gdbarch)) / TARGET_CHAR_BIT8; /* Assume ints */ | |||
2086 | TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_ENUM; | |||
2087 | TYPE_NFIELDS (type)(type)->main_type->nfields = nsyms; | |||
2088 | TYPE_FIELDS (type)(type)->main_type->fields = (struct field *) | |||
2089 | TYPE_ALLOC (type, sizeof (struct field) * nsyms)((type)->main_type->objfile != ((void*)0) ? __extension__ ({ struct obstack *__h = (&(type)->main_type->objfile -> objfile_obstack); __extension__ ({ struct obstack *__o = (__h); int __len = ((sizeof (struct field) * nsyms)); 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; }); }) : xmalloc (sizeof (struct field) * nsyms)); | |||
2090 | ||||
2091 | /* Find the symbols for the values and put them into the type. | |||
2092 | The symbols can be found in the symlist that we put them on | |||
2093 | to cause them to be defined. osyms contains the old value | |||
2094 | of that symlist; everything up to there was defined by us. */ | |||
2095 | /* Note that we preserve the order of the enum constants, so | |||
2096 | that in something like "enum {FOO, LAST_THING=FOO}" we print | |||
2097 | FOO, not LAST_THING. */ | |||
2098 | ||||
2099 | for (syms = *symlist, n = 0; syms; syms = syms->next) | |||
2100 | { | |||
2101 | int j = 0; | |||
2102 | ||||
2103 | if (syms == osyms) | |||
2104 | j = o_nsyms; | |||
2105 | for (; j < syms->nsyms; j++, n++) | |||
2106 | { | |||
2107 | struct symbol *xsym = syms->symbol[j]; | |||
2108 | SYMBOL_TYPE (xsym)(xsym)->type = type; | |||
2109 | TYPE_FIELD_NAME (type, n)(((type)->main_type->fields[n]).name) = DEPRECATED_SYMBOL_NAME (xsym)(xsym)->ginfo.name; | |||
2110 | TYPE_FIELD_BITPOS (type, n)(((type)->main_type->fields[n]).loc.bitpos) = SYMBOL_VALUE (xsym)(xsym)->ginfo.value.ivalue; | |||
2111 | if (SYMBOL_VALUE (xsym)(xsym)->ginfo.value.ivalue < 0) | |||
2112 | unsigned_enum = 0; | |||
2113 | TYPE_FIELD_BITSIZE (type, n)(((type)->main_type->fields[n]).bitsize) = 0; | |||
2114 | TYPE_FIELD_STATIC_KIND (type, n)(type)->main_type->fields[n].static_kind = 0; | |||
2115 | } | |||
2116 | if (syms == osyms) | |||
2117 | break; | |||
2118 | } | |||
2119 | ||||
2120 | if (unsigned_enum) | |||
2121 | TYPE_FLAGS (type)(type)->main_type->flags |= TYPE_FLAG_UNSIGNED(1 << 0); | |||
2122 | ||||
2123 | return type; | |||
2124 | } | |||
2125 | ||||
2126 | /* Register our ability to parse symbols for coff BFD files. */ | |||
2127 | ||||
2128 | static struct sym_fns coff_sym_fns = | |||
2129 | { | |||
2130 | bfd_target_coff_flavour, | |||
2131 | coff_new_init, /* sym_new_init: init anything gbl to entire symtab */ | |||
2132 | coff_symfile_init, /* sym_init: read initial info, setup for sym_read() */ | |||
2133 | coff_symfile_read, /* sym_read: read a symbol file into symtab */ | |||
2134 | coff_symfile_finish, /* sym_finish: finished with file, cleanup */ | |||
2135 | default_symfile_offsets, /* sym_offsets: xlate external to internal form */ | |||
2136 | NULL((void*)0) /* next: pointer to next struct sym_fns */ | |||
2137 | }; | |||
2138 | ||||
2139 | void | |||
2140 | _initialize_coffread (void) | |||
2141 | { | |||
2142 | add_symtab_fns (&coff_sym_fns); | |||
2143 | } |