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c906108c | 1 | /* Read AIX xcoff symbol tables and convert to internal format, for GDB. |
213516ef | 2 | Copyright (C) 1986-2023 Free Software Foundation, Inc. |
c906108c SS |
3 | Derived from coffread.c, dbxread.c, and a lot of hacking. |
4 | Contributed by IBM Corporation. | |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "bfd.h" | |
23 | ||
24 | #include <sys/types.h> | |
25 | #include <fcntl.h> | |
26 | #include <ctype.h> | |
c0ccb908 | 27 | #ifdef HAVE_SYS_FILE_H |
c906108c SS |
28 | #include <sys/file.h> |
29 | #endif | |
53ce3c39 | 30 | #include <sys/stat.h> |
39ef2f62 | 31 | #include <algorithm> |
c906108c SS |
32 | |
33 | #include "coff/internal.h" | |
ef0f16cc | 34 | #include "libcoff.h" |
11ed25ac KB |
35 | #include "coff/xcoff.h" |
36 | #include "libxcoff.h" | |
c906108c | 37 | #include "coff/rs6000.h" |
63807e1d | 38 | #include "xcoffread.h" |
c906108c SS |
39 | |
40 | #include "symtab.h" | |
41 | #include "gdbtypes.h" | |
9ab9195f | 42 | /* FIXME: ezannoni/2004-02-13 Verify if the include below is really needed. */ |
c906108c SS |
43 | #include "symfile.h" |
44 | #include "objfiles.h" | |
0baae8db | 45 | #include "buildsym-legacy.h" |
c906108c SS |
46 | #include "stabsread.h" |
47 | #include "expression.h" | |
c906108c | 48 | #include "complaints.h" |
b7cadd86 | 49 | #include "psymtab.h" |
c2a62a3d | 50 | #include "dwarf2/sect-names.h" |
70182375 | 51 | #include "dwarf2/public.h" |
c906108c SS |
52 | |
53 | #include "gdb-stabs.h" | |
54 | ||
55 | /* For interface with stabsread.c. */ | |
56 | #include "aout/stab_gnu.h" | |
57 | ||
c906108c SS |
58 | \f |
59 | /* We put a pointer to this structure in the read_symtab_private field | |
60 | of the psymtab. */ | |
61 | ||
77845a9a | 62 | struct xcoff_symloc |
c5aa993b | 63 | { |
c906108c | 64 | |
c5aa993b | 65 | /* First symbol number for this file. */ |
c906108c | 66 | |
c5aa993b | 67 | int first_symnum; |
c906108c | 68 | |
c5aa993b JM |
69 | /* Number of symbols in the section of the symbol table devoted to |
70 | this file's symbols (actually, the section bracketed may contain | |
71 | more than just this file's symbols). If numsyms is 0, the only | |
72 | reason for this thing's existence is the dependency list. Nothing | |
73 | else will happen when it is read in. */ | |
c906108c | 74 | |
c5aa993b | 75 | int numsyms; |
c906108c | 76 | |
3e43a32a MS |
77 | /* Position of the start of the line number information for this |
78 | psymtab. */ | |
c5aa993b JM |
79 | unsigned int lineno_off; |
80 | }; | |
c906108c | 81 | |
581e13c1 | 82 | /* Remember what we deduced to be the source language of this psymtab. */ |
c906108c SS |
83 | |
84 | static enum language psymtab_language = language_unknown; | |
c906108c | 85 | \f |
c5aa993b | 86 | |
581e13c1 | 87 | /* Simplified internal version of coff symbol table information. */ |
c906108c | 88 | |
a7f779c1 | 89 | struct xcoff_symbol |
c5aa993b JM |
90 | { |
91 | char *c_name; | |
581e13c1 MS |
92 | int c_symnum; /* Symbol number of this entry. */ |
93 | int c_naux; /* 0 if syment only, 1 if syment + auxent. */ | |
086850b2 | 94 | CORE_ADDR c_value; |
c5aa993b JM |
95 | unsigned char c_sclass; |
96 | int c_secnum; | |
97 | unsigned int c_type; | |
98 | }; | |
c906108c | 99 | |
581e13c1 | 100 | /* Last function's saved coff symbol `cs'. */ |
c906108c | 101 | |
a7f779c1 | 102 | static struct xcoff_symbol fcn_cs_saved; |
c906108c SS |
103 | |
104 | static bfd *symfile_bfd; | |
105 | ||
106 | /* Core address of start and end of text of current source file. | |
107 | This is calculated from the first function seen after a C_FILE | |
581e13c1 | 108 | symbol. */ |
c906108c SS |
109 | |
110 | ||
111 | static CORE_ADDR cur_src_end_addr; | |
112 | ||
113 | /* Core address of the end of the first object file. */ | |
114 | ||
115 | static CORE_ADDR first_object_file_end; | |
116 | ||
581e13c1 | 117 | /* Initial symbol-table-debug-string vector length. */ |
c906108c SS |
118 | |
119 | #define INITIAL_STABVECTOR_LENGTH 40 | |
120 | ||
c906108c SS |
121 | /* Size of a COFF symbol. I think it is always 18, so I'm not sure |
122 | there is any reason not to just use a #define, but might as well | |
123 | ask BFD for the size and store it here, I guess. */ | |
124 | ||
c5aa993b | 125 | static unsigned local_symesz; |
c906108c | 126 | |
02dc647e | 127 | struct xcoff_symfile_info |
c5aa993b | 128 | { |
02dc647e TT |
129 | file_ptr min_lineno_offset {}; /* Where in file lowest line#s are. */ |
130 | file_ptr max_lineno_offset {}; /* 1+last byte of line#s in file. */ | |
c906108c | 131 | |
c5aa993b | 132 | /* Pointer to the string table. */ |
02dc647e | 133 | char *strtbl = nullptr; |
c906108c | 134 | |
c5aa993b | 135 | /* Pointer to debug section. */ |
02dc647e | 136 | char *debugsec = nullptr; |
c906108c | 137 | |
c5aa993b | 138 | /* Pointer to the a.out symbol table. */ |
02dc647e | 139 | char *symtbl = nullptr; |
c906108c | 140 | |
c5aa993b | 141 | /* Number of symbols in symtbl. */ |
02dc647e | 142 | int symtbl_num_syms = 0; |
c906108c | 143 | |
c5aa993b | 144 | /* Offset in data section to TOC anchor. */ |
02dc647e | 145 | CORE_ADDR toc_offset = 0; |
c5aa993b | 146 | }; |
c906108c | 147 | |
02dc647e TT |
148 | /* Key for XCOFF-associated data. */ |
149 | ||
08b8a139 | 150 | static const registry<objfile>::key<xcoff_symfile_info> xcoff_objfile_data_key; |
02dc647e | 151 | |
b8b98ad1 TT |
152 | /* Convenience macro to access the per-objfile XCOFF data. */ |
153 | ||
154 | #define XCOFF_DATA(objfile) \ | |
02dc647e | 155 | xcoff_objfile_data_key.get (objfile) |
b8b98ad1 | 156 | |
316a8b21 TG |
157 | /* XCOFF names for dwarf sections. There is no compressed sections. */ |
158 | ||
159 | static const struct dwarf2_debug_sections dwarf2_xcoff_names = { | |
160 | { ".dwinfo", NULL }, | |
161 | { ".dwabrev", NULL }, | |
162 | { ".dwline", NULL }, | |
163 | { ".dwloc", NULL }, | |
43988095 | 164 | { NULL, NULL }, /* debug_loclists */ |
33f914a1 DE |
165 | /* AIX XCOFF defines one, named DWARF section for macro debug information. |
166 | XLC does not generate debug_macinfo for DWARF4 and below. | |
167 | The section is assigned to debug_macro for DWARF5 and above. */ | |
168 | { NULL, NULL }, | |
169 | { ".dwmac", NULL }, | |
316a8b21 | 170 | { ".dwstr", NULL }, |
18a8505e | 171 | { NULL, NULL }, /* debug_str_offsets */ |
43988095 | 172 | { NULL, NULL }, /* debug_line_str */ |
316a8b21 | 173 | { ".dwrnges", NULL }, |
43988095 | 174 | { NULL, NULL }, /* debug_rnglists */ |
33f914a1 | 175 | { ".dwpbtyp", NULL }, |
3019eac3 | 176 | { NULL, NULL }, /* debug_addr */ |
316a8b21 TG |
177 | { ".dwframe", NULL }, |
178 | { NULL, NULL }, /* eh_frame */ | |
24d3216f | 179 | { NULL, NULL }, /* gdb_index */ |
927aa2e7 JK |
180 | { NULL, NULL }, /* debug_names */ |
181 | { NULL, NULL }, /* debug_aranges */ | |
24d3216f | 182 | 23 |
316a8b21 TG |
183 | }; |
184 | ||
23136709 KB |
185 | static void |
186 | bf_notfound_complaint (void) | |
187 | { | |
b98664d3 | 188 | complaint (_("line numbers off, `.bf' symbol not found")); |
23136709 | 189 | } |
c906108c | 190 | |
23136709 KB |
191 | static void |
192 | ef_complaint (int arg1) | |
193 | { | |
b98664d3 | 194 | complaint (_("Mismatched .ef symbol ignored starting at symnum %d"), arg1); |
23136709 | 195 | } |
c906108c | 196 | |
23136709 KB |
197 | static void |
198 | eb_complaint (int arg1) | |
199 | { | |
b98664d3 | 200 | complaint (_("Mismatched .eb symbol ignored starting at symnum %d"), arg1); |
23136709 | 201 | } |
c906108c | 202 | |
b15cc25c | 203 | static void xcoff_initial_scan (struct objfile *, symfile_add_flags); |
c906108c | 204 | |
8dddcb8f | 205 | static void scan_xcoff_symtab (minimal_symbol_reader &, |
7e9c0476 | 206 | psymtab_storage *partial_symtabs, |
8dddcb8f | 207 | struct objfile *); |
c906108c | 208 | |
a121b7c1 | 209 | static const char *xcoff_next_symbol_text (struct objfile *); |
c906108c | 210 | |
a7f779c1 | 211 | static void record_include_begin (struct xcoff_symbol *); |
c906108c SS |
212 | |
213 | static void | |
a14ed312 KB |
214 | enter_line_range (struct subfile *, unsigned, unsigned, |
215 | CORE_ADDR, CORE_ADDR, unsigned *); | |
c906108c | 216 | |
a14ed312 | 217 | static void init_stringtab (bfd *, file_ptr, struct objfile *); |
c906108c | 218 | |
a14ed312 | 219 | static void xcoff_symfile_init (struct objfile *); |
c906108c | 220 | |
a14ed312 | 221 | static void xcoff_new_init (struct objfile *); |
c906108c | 222 | |
a14ed312 | 223 | static void xcoff_symfile_finish (struct objfile *); |
c906108c | 224 | |
a14ed312 | 225 | static char *coff_getfilename (union internal_auxent *, struct objfile *); |
c906108c | 226 | |
a14ed312 | 227 | static void read_symbol (struct internal_syment *, int); |
c906108c | 228 | |
a14ed312 | 229 | static int read_symbol_lineno (int); |
c906108c | 230 | |
470d5666 | 231 | static CORE_ADDR read_symbol_nvalue (int); |
c906108c | 232 | |
a7f779c1 | 233 | static struct symbol *process_xcoff_symbol (struct xcoff_symbol *, |
a14ed312 | 234 | struct objfile *); |
c906108c | 235 | |
891813be | 236 | static void read_xcoff_symtab (struct objfile *, legacy_psymtab *); |
c906108c SS |
237 | |
238 | #if 0 | |
a14ed312 | 239 | static void add_stab_to_list (char *, struct pending_stabs **); |
c906108c SS |
240 | #endif |
241 | ||
a7f779c1 | 242 | static void record_include_end (struct xcoff_symbol *); |
c906108c | 243 | |
a14ed312 | 244 | static void process_linenos (CORE_ADDR, CORE_ADDR); |
c906108c | 245 | \f |
c5aa993b | 246 | |
c906108c SS |
247 | /* Translate from a COFF section number (target_index) to a SECT_OFF_* |
248 | code. */ | |
a14ed312 KB |
249 | static int secnum_to_section (int, struct objfile *); |
250 | static asection *secnum_to_bfd_section (int, struct objfile *); | |
c906108c | 251 | |
ddfc4ef1 | 252 | struct xcoff_find_targ_sec_arg |
c5aa993b JM |
253 | { |
254 | int targ_index; | |
255 | int *resultp; | |
256 | asection **bfd_sect; | |
b8fbeb18 | 257 | struct objfile *objfile; |
c5aa993b | 258 | }; |
c906108c | 259 | |
a14ed312 | 260 | static void find_targ_sec (bfd *, asection *, void *); |
c906108c | 261 | |
c5aa993b | 262 | static void |
4efb68b1 | 263 | find_targ_sec (bfd *abfd, asection *sect, void *obj) |
c906108c | 264 | { |
ddfc4ef1 TT |
265 | struct xcoff_find_targ_sec_arg *args |
266 | = (struct xcoff_find_targ_sec_arg *) obj; | |
b8fbeb18 | 267 | struct objfile *objfile = args->objfile; |
a109c7c1 | 268 | |
c906108c SS |
269 | if (sect->target_index == args->targ_index) |
270 | { | |
271 | /* This is the section. Figure out what SECT_OFF_* code it is. */ | |
fd361982 | 272 | if (bfd_section_flags (sect) & SEC_CODE) |
b8fbeb18 | 273 | *args->resultp = SECT_OFF_TEXT (objfile); |
fd361982 | 274 | else if (bfd_section_flags (sect) & SEC_LOAD) |
b8fbeb18 | 275 | *args->resultp = SECT_OFF_DATA (objfile); |
c906108c | 276 | else |
65cf3563 | 277 | *args->resultp = gdb_bfd_section_index (abfd, sect); |
c906108c SS |
278 | *args->bfd_sect = sect; |
279 | } | |
280 | } | |
281 | ||
ec92004f JB |
282 | /* Search all BFD sections for the section whose target_index is |
283 | equal to N_SCNUM. Set *BFD_SECT to that section. The section's | |
284 | associated index in the objfile's section_offset table is also | |
285 | stored in *SECNUM. | |
286 | ||
287 | If no match is found, *BFD_SECT is set to NULL, and *SECNUM | |
288 | is set to the text section's number. */ | |
a109c7c1 | 289 | |
ec92004f JB |
290 | static void |
291 | xcoff_secnum_to_sections (int n_scnum, struct objfile *objfile, | |
292 | asection **bfd_sect, int *secnum) | |
293 | { | |
ddfc4ef1 | 294 | struct xcoff_find_targ_sec_arg args; |
ec92004f JB |
295 | |
296 | args.targ_index = n_scnum; | |
297 | args.resultp = secnum; | |
298 | args.bfd_sect = bfd_sect; | |
b8fbeb18 | 299 | args.objfile = objfile; |
ec92004f JB |
300 | |
301 | *bfd_sect = NULL; | |
302 | *secnum = SECT_OFF_TEXT (objfile); | |
303 | ||
98badbfd | 304 | bfd_map_over_sections (objfile->obfd.get (), find_targ_sec, &args); |
c906108c SS |
305 | } |
306 | ||
ec92004f JB |
307 | /* Return the section number (SECT_OFF_*) that N_SCNUM points to. */ |
308 | ||
309 | static int | |
310 | secnum_to_section (int n_scnum, struct objfile *objfile) | |
311 | { | |
312 | int secnum; | |
313 | asection *ignored; | |
314 | ||
315 | xcoff_secnum_to_sections (n_scnum, objfile, &ignored, &secnum); | |
316 | return secnum; | |
317 | } | |
318 | ||
319 | /* Return the BFD section that N_SCNUM points to. */ | |
320 | ||
c906108c | 321 | static asection * |
ec92004f | 322 | secnum_to_bfd_section (int n_scnum, struct objfile *objfile) |
c906108c | 323 | { |
ec92004f JB |
324 | int ignored; |
325 | asection *bfd_sect; | |
a109c7c1 | 326 | |
ec92004f JB |
327 | xcoff_secnum_to_sections (n_scnum, objfile, &bfd_sect, &ignored); |
328 | return bfd_sect; | |
c906108c SS |
329 | } |
330 | \f | |
581e13c1 | 331 | /* add a given stab string into given stab vector. */ |
c906108c SS |
332 | |
333 | #if 0 | |
334 | ||
335 | static void | |
fba45db2 | 336 | add_stab_to_list (char *stabname, struct pending_stabs **stabvector) |
c906108c | 337 | { |
c5aa993b JM |
338 | if (*stabvector == NULL) |
339 | { | |
340 | *stabvector = (struct pending_stabs *) | |
341 | xmalloc (sizeof (struct pending_stabs) + | |
342 | INITIAL_STABVECTOR_LENGTH * sizeof (char *)); | |
343 | (*stabvector)->count = 0; | |
344 | (*stabvector)->length = INITIAL_STABVECTOR_LENGTH; | |
345 | } | |
346 | else if ((*stabvector)->count >= (*stabvector)->length) | |
347 | { | |
348 | (*stabvector)->length += INITIAL_STABVECTOR_LENGTH; | |
349 | *stabvector = (struct pending_stabs *) | |
350 | xrealloc ((char *) *stabvector, sizeof (struct pending_stabs) + | |
3e43a32a | 351 | (*stabvector)->length * sizeof (char *)); |
c5aa993b JM |
352 | } |
353 | (*stabvector)->stab[(*stabvector)->count++] = stabname; | |
c906108c SS |
354 | } |
355 | ||
356 | #endif | |
810fbe39 | 357 | \f |
c906108c SS |
358 | /* Linenos are processed on a file-by-file basis. |
359 | ||
360 | Two reasons: | |
361 | ||
c5aa993b | 362 | 1) xlc (IBM's native c compiler) postpones static function code |
581e13c1 | 363 | emission to the end of a compilation unit. This way it can |
c5aa993b | 364 | determine if those functions (statics) are needed or not, and |
581e13c1 | 365 | can do some garbage collection (I think). This makes line |
c5aa993b JM |
366 | numbers and corresponding addresses unordered, and we end up |
367 | with a line table like: | |
368 | ||
369 | ||
370 | lineno addr | |
371 | foo() 10 0x100 | |
372 | 20 0x200 | |
373 | 30 0x300 | |
374 | ||
375 | foo3() 70 0x400 | |
376 | 80 0x500 | |
377 | 90 0x600 | |
378 | ||
379 | static foo2() | |
380 | 40 0x700 | |
381 | 50 0x800 | |
382 | 60 0x900 | |
383 | ||
384 | and that breaks gdb's binary search on line numbers, if the | |
581e13c1 | 385 | above table is not sorted on line numbers. And that sort |
c5aa993b JM |
386 | should be on function based, since gcc can emit line numbers |
387 | like: | |
388 | ||
389 | 10 0x100 - for the init/test part of a for stmt. | |
390 | 20 0x200 | |
391 | 30 0x300 | |
392 | 10 0x400 - for the increment part of a for stmt. | |
393 | ||
581e13c1 | 394 | arrange_linetable() will do this sorting. |
c5aa993b JM |
395 | |
396 | 2) aix symbol table might look like: | |
397 | ||
398 | c_file // beginning of a new file | |
399 | .bi // beginning of include file | |
400 | .ei // end of include file | |
401 | .bi | |
402 | .ei | |
403 | ||
404 | basically, .bi/.ei pairs do not necessarily encapsulate | |
581e13c1 | 405 | their scope. They need to be recorded, and processed later |
c5aa993b JM |
406 | on when we come the end of the compilation unit. |
407 | Include table (inclTable) and process_linenos() handle | |
408 | that. */ | |
c906108c | 409 | |
c5aa993b | 410 | |
581e13c1 MS |
411 | /* Given a line table with function entries are marked, arrange its |
412 | functions in ascending order and strip off function entry markers | |
558802e4 SM |
413 | and return it in a newly created table. */ |
414 | ||
c906108c | 415 | /* FIXME: I think all this stuff can be replaced by just passing |
59dfe8ad | 416 | sort_linevec = 1 to end_compunit_symtab. */ |
c906108c | 417 | |
558802e4 SM |
418 | static void |
419 | arrange_linetable (std::vector<linetable_entry> &old_linetable) | |
c906108c | 420 | { |
b08c778b | 421 | std::vector<linetable_entry> fentries; |
c906108c | 422 | |
558802e4 | 423 | for (int ii = 0; ii < old_linetable.size (); ++ii) |
c5aa993b | 424 | { |
ddc6677b | 425 | if (!old_linetable[ii].is_stmt) |
8c95582d AB |
426 | continue; |
427 | ||
558802e4 | 428 | if (old_linetable[ii].line == 0) |
b08c778b SM |
429 | { |
430 | /* Function entry found. */ | |
431 | fentries.emplace_back (); | |
432 | linetable_entry &e = fentries.back (); | |
433 | e.line = ii; | |
ddc6677b | 434 | e.is_stmt = true; |
0434c3ef | 435 | e.set_unrelocated_pc (old_linetable[ii].unrelocated_pc ()); |
c5aa993b | 436 | } |
c906108c | 437 | } |
c906108c | 438 | |
b08c778b | 439 | if (fentries.empty ()) |
558802e4 | 440 | return; |
b08c778b | 441 | |
6e6ac32d | 442 | std::sort (fentries.begin (), fentries.end ()); |
c906108c | 443 | |
581e13c1 | 444 | /* Allocate a new line table. */ |
558802e4 SM |
445 | std::vector<linetable_entry> new_linetable; |
446 | new_linetable.reserve (old_linetable.size ()); | |
c906108c | 447 | |
581e13c1 MS |
448 | /* If line table does not start with a function beginning, copy up until |
449 | a function begin. */ | |
558802e4 SM |
450 | for (int i = 0; i < old_linetable.size () && old_linetable[i].line != 0; ++i) |
451 | new_linetable.push_back (old_linetable[i]); | |
c906108c | 452 | |
581e13c1 | 453 | /* Now copy function lines one by one. */ |
b08c778b | 454 | for (const linetable_entry &entry : fentries) |
c5aa993b | 455 | { |
a85c52f2 | 456 | /* If the function was compiled with XLC, we may have to add an |
dda83cd7 | 457 | extra line to cover the function prologue. */ |
b08c778b | 458 | int jj = entry.line; |
558802e4 | 459 | if (jj + 1 < old_linetable.size () |
0434c3ef TT |
460 | && (old_linetable[jj].unrelocated_pc () |
461 | != old_linetable[jj + 1].unrelocated_pc ())) | |
a85c52f2 | 462 | { |
558802e4 SM |
463 | new_linetable.push_back (old_linetable[jj]); |
464 | new_linetable.back ().line = old_linetable[jj + 1].line; | |
a85c52f2 UW |
465 | } |
466 | ||
b08c778b | 467 | for (jj = entry.line + 1; |
558802e4 SM |
468 | jj < old_linetable.size () && old_linetable[jj].line != 0; |
469 | ++jj) | |
470 | new_linetable.push_back (old_linetable[jj]); | |
c5aa993b | 471 | } |
b08c778b | 472 | |
558802e4 SM |
473 | new_linetable.shrink_to_fit (); |
474 | old_linetable = std::move (new_linetable); | |
c5aa993b | 475 | } |
c906108c SS |
476 | |
477 | /* include file support: C_BINCL/C_EINCL pairs will be kept in the | |
59dfe8ad | 478 | following `IncludeChain'. At the end of each symtab (end_compunit_symtab), |
c906108c | 479 | we will determine if we should create additional symtab's to |
581e13c1 | 480 | represent if (the include files. */ |
c906108c SS |
481 | |
482 | ||
c5aa993b JM |
483 | typedef struct _inclTable |
484 | { | |
485 | char *name; /* include filename */ | |
c906108c SS |
486 | |
487 | /* Offsets to the line table. end points to the last entry which is | |
488 | part of this include file. */ | |
c5aa993b JM |
489 | int begin, end; |
490 | ||
c906108c | 491 | struct subfile *subfile; |
581e13c1 | 492 | unsigned funStartLine; /* Start line # of its function. */ |
c5aa993b JM |
493 | } |
494 | InclTable; | |
c906108c SS |
495 | |
496 | #define INITIAL_INCLUDE_TABLE_LENGTH 20 | |
c5aa993b JM |
497 | static InclTable *inclTable; /* global include table */ |
498 | static int inclIndx; /* last entry to table */ | |
499 | static int inclLength; /* table length */ | |
500 | static int inclDepth; /* nested include depth */ | |
c906108c | 501 | |
433e8364 MW |
502 | /* subfile structure for the main compilation unit. */ |
503 | static subfile *main_subfile; | |
504 | ||
a14ed312 | 505 | static void allocate_include_entry (void); |
c906108c SS |
506 | |
507 | static void | |
a7f779c1 | 508 | record_include_begin (struct xcoff_symbol *cs) |
c906108c SS |
509 | { |
510 | if (inclDepth) | |
511 | { | |
512 | /* In xcoff, we assume include files cannot be nested (not in .c files | |
dda83cd7 | 513 | of course, but in corresponding .s files.). */ |
c906108c SS |
514 | |
515 | /* This can happen with old versions of GCC. | |
dda83cd7 SM |
516 | GCC 2.3.3-930426 does not exhibit this on a test case which |
517 | a user said produced the message for him. */ | |
b98664d3 | 518 | complaint (_("Nested C_BINCL symbols")); |
c906108c SS |
519 | } |
520 | ++inclDepth; | |
521 | ||
522 | allocate_include_entry (); | |
523 | ||
c5aa993b JM |
524 | inclTable[inclIndx].name = cs->c_name; |
525 | inclTable[inclIndx].begin = cs->c_value; | |
c906108c SS |
526 | } |
527 | ||
528 | static void | |
a7f779c1 | 529 | record_include_end (struct xcoff_symbol *cs) |
c906108c | 530 | { |
c5aa993b | 531 | InclTable *pTbl; |
c906108c SS |
532 | |
533 | if (inclDepth == 0) | |
534 | { | |
b98664d3 | 535 | complaint (_("Mismatched C_BINCL/C_EINCL pair")); |
c906108c SS |
536 | } |
537 | ||
538 | allocate_include_entry (); | |
539 | ||
c5aa993b | 540 | pTbl = &inclTable[inclIndx]; |
c906108c SS |
541 | pTbl->end = cs->c_value; |
542 | ||
543 | --inclDepth; | |
544 | ++inclIndx; | |
545 | } | |
546 | ||
547 | static void | |
fba45db2 | 548 | allocate_include_entry (void) |
c906108c SS |
549 | { |
550 | if (inclTable == NULL) | |
551 | { | |
8d749320 | 552 | inclTable = XCNEWVEC (InclTable, INITIAL_INCLUDE_TABLE_LENGTH); |
c906108c SS |
553 | inclLength = INITIAL_INCLUDE_TABLE_LENGTH; |
554 | inclIndx = 0; | |
433e8364 | 555 | main_subfile = new subfile; |
c906108c SS |
556 | } |
557 | else if (inclIndx >= inclLength) | |
558 | { | |
559 | inclLength += INITIAL_INCLUDE_TABLE_LENGTH; | |
8d749320 | 560 | inclTable = XRESIZEVEC (InclTable, inclTable, inclLength); |
c5aa993b JM |
561 | memset (inclTable + inclLength - INITIAL_INCLUDE_TABLE_LENGTH, |
562 | '\0', sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); | |
c906108c SS |
563 | } |
564 | } | |
565 | ||
566 | /* Global variable to pass the psymtab down to all the routines involved | |
567 | in psymtab to symtab processing. */ | |
891813be | 568 | static legacy_psymtab *this_symtab_psymtab; |
c906108c | 569 | |
5c80ed9d TT |
570 | /* Objfile related to this_symtab_psymtab; set at the same time. */ |
571 | static struct objfile *this_symtab_objfile; | |
572 | ||
c906108c | 573 | /* given the start and end addresses of a compilation unit (or a csect, |
581e13c1 | 574 | at times) process its lines and create appropriate line vectors. */ |
c906108c SS |
575 | |
576 | static void | |
fba45db2 | 577 | process_linenos (CORE_ADDR start, CORE_ADDR end) |
c906108c | 578 | { |
558802e4 | 579 | int offset; |
b8b98ad1 | 580 | file_ptr max_offset |
5c80ed9d | 581 | = XCOFF_DATA (this_symtab_objfile)->max_lineno_offset; |
c906108c | 582 | |
c906108c SS |
583 | /* In the main source file, any time we see a function entry, we |
584 | reset this variable to function's absolute starting line number. | |
585 | All the following line numbers in the function are relative to | |
586 | this, and we record absolute line numbers in record_line(). */ | |
587 | ||
588 | unsigned int main_source_baseline = 0; | |
589 | ||
590 | unsigned *firstLine; | |
591 | ||
592 | offset = | |
77845a9a | 593 | ((struct xcoff_symloc *) this_symtab_psymtab->read_symtab_private)->lineno_off; |
c906108c SS |
594 | if (offset == 0) |
595 | goto return_after_cleanup; | |
596 | ||
c906108c | 597 | if (inclIndx == 0) |
581e13c1 MS |
598 | /* All source lines were in the main source file. None in include |
599 | files. */ | |
c906108c | 600 | |
433e8364 | 601 | enter_line_range (main_subfile, offset, 0, start, end, |
c5aa993b | 602 | &main_source_baseline); |
c906108c SS |
603 | |
604 | else | |
605 | { | |
606 | /* There was source with line numbers in include files. */ | |
7a78ae4e ND |
607 | |
608 | int linesz = | |
5c80ed9d | 609 | coff_data (this_symtab_objfile->obfd)->local_linesz; |
c906108c | 610 | main_source_baseline = 0; |
7a78ae4e | 611 | |
558802e4 | 612 | for (int ii = 0; ii < inclIndx; ++ii) |
c906108c | 613 | { |
c906108c SS |
614 | /* If there is main file source before include file, enter it. */ |
615 | if (offset < inclTable[ii].begin) | |
616 | { | |
617 | enter_line_range | |
433e8364 | 618 | (main_subfile, offset, inclTable[ii].begin - linesz, |
c906108c SS |
619 | start, 0, &main_source_baseline); |
620 | } | |
621 | ||
46212e0b | 622 | if (strcmp (inclTable[ii].name, get_last_source_file ()) == 0) |
c5933f6d | 623 | { |
dda83cd7 SM |
624 | /* The entry in the include table refers to the main source |
625 | file. Add the lines to the main subfile. */ | |
c5933f6d JB |
626 | |
627 | main_source_baseline = inclTable[ii].funStartLine; | |
628 | enter_line_range | |
433e8364 | 629 | (main_subfile, inclTable[ii].begin, inclTable[ii].end, |
c5933f6d | 630 | start, 0, &main_source_baseline); |
433e8364 | 631 | inclTable[ii].subfile = main_subfile; |
c5933f6d JB |
632 | } |
633 | else | |
634 | { | |
c5933f6d | 635 | /* Have a new subfile for the include file. */ |
71bc95ed | 636 | inclTable[ii].subfile = new subfile; |
c906108c | 637 | |
c5933f6d JB |
638 | firstLine = &(inclTable[ii].funStartLine); |
639 | ||
640 | /* Enter include file's lines now. */ | |
71bc95ed | 641 | enter_line_range (inclTable[ii].subfile, inclTable[ii].begin, |
c5933f6d JB |
642 | inclTable[ii].end, start, 0, firstLine); |
643 | } | |
c906108c SS |
644 | |
645 | if (offset <= inclTable[ii].end) | |
7a78ae4e | 646 | offset = inclTable[ii].end + linesz; |
c906108c SS |
647 | } |
648 | ||
649 | /* All the include files' line have been processed at this point. Now, | |
dda83cd7 | 650 | enter remaining lines of the main file, if any left. */ |
7a78ae4e | 651 | if (offset < max_offset + 1 - linesz) |
c906108c | 652 | { |
433e8364 | 653 | enter_line_range (main_subfile, offset, 0, start, end, |
c906108c SS |
654 | &main_source_baseline); |
655 | } | |
656 | } | |
657 | ||
658 | /* Process main file's line numbers. */ | |
433e8364 | 659 | if (!main_subfile->line_vector_entries.empty ()) |
c906108c | 660 | { |
581e13c1 | 661 | /* Line numbers are not necessarily ordered. xlc compilation will |
dda83cd7 | 662 | put static function to the end. */ |
433e8364 | 663 | arrange_linetable (main_subfile->line_vector_entries); |
c906108c SS |
664 | } |
665 | ||
666 | /* Now, process included files' line numbers. */ | |
667 | ||
558802e4 | 668 | for (int ii = 0; ii < inclIndx; ++ii) |
c906108c | 669 | { |
433e8364 | 670 | if (inclTable[ii].subfile != main_subfile |
558802e4 | 671 | && !inclTable[ii].subfile->line_vector_entries.empty ()) |
c906108c | 672 | { |
581e13c1 MS |
673 | /* Line numbers are not necessarily ordered. xlc compilation will |
674 | put static function to the end. */ | |
558802e4 | 675 | arrange_linetable (inclTable[ii].subfile->line_vector_entries); |
c906108c SS |
676 | |
677 | push_subfile (); | |
678 | ||
679 | /* For the same include file, we might want to have more than one | |
680 | subfile. This happens if we have something like: | |
681 | ||
c5aa993b JM |
682 | ...... |
683 | #include "foo.h" | |
684 | ...... | |
685 | #include "foo.h" | |
686 | ...... | |
c906108c | 687 | |
581e13c1 | 688 | while foo.h including code in it. (stupid but possible) |
c906108c SS |
689 | Since start_subfile() looks at the name and uses an |
690 | existing one if finds, we need to provide a fake name and | |
691 | fool it. */ | |
692 | ||
693 | #if 0 | |
4d663531 | 694 | start_subfile (inclTable[ii].name); |
c906108c SS |
695 | #else |
696 | { | |
697 | /* Pick a fake name that will produce the same results as this | |
698 | one when passed to deduce_language_from_filename. Kludge on | |
699 | top of kludge. */ | |
a121b7c1 | 700 | const char *fakename = strrchr (inclTable[ii].name, '.'); |
a109c7c1 | 701 | |
c906108c SS |
702 | if (fakename == NULL) |
703 | fakename = " ?"; | |
4d663531 | 704 | start_subfile (fakename); |
c906108c | 705 | } |
3c65e5b3 | 706 | struct subfile *current_subfile = get_current_subfile (); |
ebd4e6d0 | 707 | current_subfile->name = inclTable[ii].name; |
f71ad555 | 708 | current_subfile->name_for_id = inclTable[ii].name; |
c906108c SS |
709 | #endif |
710 | ||
4d663531 | 711 | start_subfile (pop_subfile ()); |
c906108c SS |
712 | } |
713 | } | |
714 | ||
c5aa993b | 715 | return_after_cleanup: |
c906108c SS |
716 | |
717 | /* We don't want to keep alloc/free'ing the global include file table. */ | |
718 | inclIndx = 0; | |
c906108c SS |
719 | } |
720 | ||
c295b2e5 | 721 | static void |
f56ce883 | 722 | aix_process_linenos (struct objfile *objfile) |
c906108c | 723 | { |
316a8b21 TG |
724 | /* There is no linenos to read if there are only dwarf info. */ |
725 | if (this_symtab_psymtab == NULL) | |
726 | return; | |
727 | ||
581e13c1 | 728 | /* Process line numbers and enter them into line vector. */ |
2c99ee5c | 729 | process_linenos (get_last_source_start_addr (), cur_src_end_addr); |
c906108c SS |
730 | } |
731 | ||
732 | ||
733 | /* Enter a given range of lines into the line vector. | |
734 | can be called in the following two ways: | |
3e43a32a | 735 | enter_line_range (subfile, beginoffset, endoffset, |
dda83cd7 | 736 | startaddr, 0, firstLine) or |
3e43a32a | 737 | enter_line_range (subfile, beginoffset, 0, |
dda83cd7 | 738 | startaddr, endaddr, firstLine) |
c906108c SS |
739 | |
740 | endoffset points to the last line table entry that we should pay | |
741 | attention to. */ | |
742 | ||
743 | static void | |
3e43a32a MS |
744 | enter_line_range (struct subfile *subfile, unsigned beginoffset, |
745 | unsigned endoffset, /* offsets to line table */ | |
fba45db2 KB |
746 | CORE_ADDR startaddr, /* offsets to line table */ |
747 | CORE_ADDR endaddr, unsigned *firstLine) | |
c906108c | 748 | { |
5c80ed9d | 749 | struct objfile *objfile = this_symtab_objfile; |
08feed99 | 750 | struct gdbarch *gdbarch = objfile->arch (); |
c906108c SS |
751 | unsigned int curoffset; |
752 | CORE_ADDR addr; | |
7a78ae4e | 753 | void *ext_lnno; |
c906108c SS |
754 | struct internal_lineno int_lnno; |
755 | unsigned int limit_offset; | |
756 | bfd *abfd; | |
7a78ae4e | 757 | int linesz; |
c906108c SS |
758 | |
759 | if (endoffset == 0 && startaddr == 0 && endaddr == 0) | |
760 | return; | |
761 | curoffset = beginoffset; | |
b8b98ad1 | 762 | limit_offset = XCOFF_DATA (objfile)->max_lineno_offset; |
c906108c SS |
763 | |
764 | if (endoffset != 0) | |
765 | { | |
766 | if (endoffset >= limit_offset) | |
767 | { | |
b98664d3 | 768 | complaint (_("Bad line table offset in C_EINCL directive")); |
c906108c SS |
769 | return; |
770 | } | |
771 | limit_offset = endoffset; | |
772 | } | |
773 | else | |
774 | limit_offset -= 1; | |
7a78ae4e | 775 | |
98badbfd | 776 | abfd = objfile->obfd.get (); |
7a78ae4e ND |
777 | linesz = coff_data (abfd)->local_linesz; |
778 | ext_lnno = alloca (linesz); | |
c906108c SS |
779 | |
780 | while (curoffset <= limit_offset) | |
781 | { | |
2db20b97 AM |
782 | if (bfd_seek (abfd, curoffset, SEEK_SET) != 0 |
783 | || bfd_read (ext_lnno, linesz, abfd) != linesz) | |
784 | return; | |
7a78ae4e | 785 | bfd_coff_swap_lineno_in (abfd, ext_lnno, &int_lnno); |
c906108c SS |
786 | |
787 | /* Find the address this line represents. */ | |
788 | addr = (int_lnno.l_lnno | |
789 | ? int_lnno.l_addr.l_paddr | |
790 | : read_symbol_nvalue (int_lnno.l_addr.l_symndx)); | |
b3b3bada | 791 | addr += objfile->text_section_offset (); |
c906108c SS |
792 | |
793 | if (addr < startaddr || (endaddr && addr >= endaddr)) | |
794 | return; | |
795 | ||
1acc9dca TT |
796 | CORE_ADDR record_addr = (gdbarch_addr_bits_remove (gdbarch, addr) |
797 | - objfile->text_section_offset ()); | |
c906108c SS |
798 | if (int_lnno.l_lnno == 0) |
799 | { | |
800 | *firstLine = read_symbol_lineno (int_lnno.l_addr.l_symndx); | |
48e0f38c | 801 | record_line (subfile, 0, unrelocated_addr (record_addr)); |
c906108c SS |
802 | --(*firstLine); |
803 | } | |
804 | else | |
48e0f38c TT |
805 | record_line (subfile, *firstLine + int_lnno.l_lnno, |
806 | unrelocated_addr (record_addr)); | |
7a78ae4e | 807 | curoffset += linesz; |
c906108c SS |
808 | } |
809 | } | |
810 | ||
811 | ||
812 | /* Save the vital information for use when closing off the current file. | |
813 | NAME is the file name the symbols came from, START_ADDR is the first | |
814 | text address for the file, and SIZE is the number of bytes of text. */ | |
815 | ||
816 | #define complete_symtab(name, start_addr) { \ | |
46212e0b | 817 | set_last_source_file (name); \ |
2c99ee5c | 818 | set_last_source_start_addr (start_addr); \ |
c906108c SS |
819 | } |
820 | ||
821 | ||
822 | /* Refill the symbol table input buffer | |
823 | and set the variables that control fetching entries from it. | |
824 | Reports an error if no data available. | |
825 | This function can read past the end of the symbol table | |
826 | (into the string table) but this does no harm. */ | |
827 | ||
8dddcb8f | 828 | /* Create a new minimal symbol (using record_with_info). |
ec92004f | 829 | |
4d1eb6b4 | 830 | Creation of all new minimal symbols should go through this function |
8dddcb8f | 831 | rather than calling the various record functions in order |
4d1eb6b4 JB |
832 | to make sure that all symbol addresses get properly relocated. |
833 | ||
ec92004f JB |
834 | Arguments are: |
835 | ||
836 | NAME - the symbol's name (but if NAME starts with a period, that | |
837 | leading period is discarded). | |
4d1eb6b4 JB |
838 | ADDRESS - the symbol's address, prior to relocation. This function |
839 | relocates the address before recording the minimal symbol. | |
ec92004f JB |
840 | MS_TYPE - the symbol's type. |
841 | N_SCNUM - the symbol's XCOFF section number. | |
842 | OBJFILE - the objfile associated with the minimal symbol. */ | |
c906108c | 843 | |
ec92004f | 844 | static void |
8dddcb8f | 845 | record_minimal_symbol (minimal_symbol_reader &reader, |
9675da25 | 846 | const char *name, unrelocated_addr address, |
ec92004f JB |
847 | enum minimal_symbol_type ms_type, |
848 | int n_scnum, | |
849 | struct objfile *objfile) | |
850 | { | |
ec92004f JB |
851 | if (name[0] == '.') |
852 | ++name; | |
853 | ||
8dddcb8f TT |
854 | reader.record_with_info (name, address, ms_type, |
855 | secnum_to_section (n_scnum, objfile)); | |
ec92004f | 856 | } |
c906108c | 857 | |
581e13c1 MS |
858 | /* xcoff has static blocks marked in `.bs', `.es' pairs. They cannot be |
859 | nested. At any given time, a symbol can only be in one static block. | |
860 | This is the base address of current static block, zero if non exists. */ | |
c5aa993b | 861 | |
c906108c SS |
862 | static int static_block_base = 0; |
863 | ||
864 | /* Section number for the current static block. */ | |
865 | ||
866 | static int static_block_section = -1; | |
867 | ||
581e13c1 | 868 | /* true if space for symbol name has been allocated. */ |
c906108c SS |
869 | |
870 | static int symname_alloced = 0; | |
871 | ||
872 | /* Next symbol to read. Pointer into raw seething symbol table. */ | |
873 | ||
874 | static char *raw_symbol; | |
875 | ||
876 | /* This is the function which stabsread.c calls to get symbol | |
877 | continuations. */ | |
878 | ||
a121b7c1 | 879 | static const char * |
fba45db2 | 880 | xcoff_next_symbol_text (struct objfile *objfile) |
c906108c SS |
881 | { |
882 | struct internal_syment symbol; | |
a121b7c1 | 883 | const char *retval; |
a109c7c1 | 884 | |
581e13c1 | 885 | /* FIXME: is this the same as the passed arg? */ |
5c80ed9d TT |
886 | if (this_symtab_objfile) |
887 | objfile = this_symtab_objfile; | |
c906108c | 888 | |
98badbfd | 889 | bfd_coff_swap_sym_in (objfile->obfd.get (), raw_symbol, &symbol); |
c906108c SS |
890 | if (symbol.n_zeroes) |
891 | { | |
b98664d3 | 892 | complaint (_("Unexpected symbol continuation")); |
c906108c SS |
893 | |
894 | /* Return something which points to '\0' and hope the symbol reading | |
dda83cd7 | 895 | code does something reasonable. */ |
c906108c SS |
896 | retval = ""; |
897 | } | |
898 | else if (symbol.n_sclass & 0x80) | |
899 | { | |
b8b98ad1 | 900 | retval = XCOFF_DATA (objfile)->debugsec + symbol.n_offset; |
3e43a32a | 901 | raw_symbol += coff_data (objfile->obfd)->local_symesz; |
c906108c SS |
902 | ++symnum; |
903 | } | |
904 | else | |
905 | { | |
b98664d3 | 906 | complaint (_("Unexpected symbol continuation")); |
c906108c SS |
907 | |
908 | /* Return something which points to '\0' and hope the symbol reading | |
dda83cd7 | 909 | code does something reasonable. */ |
c906108c SS |
910 | retval = ""; |
911 | } | |
912 | return retval; | |
913 | } | |
914 | ||
915 | /* Read symbols for a given partial symbol table. */ | |
916 | ||
917 | static void | |
891813be | 918 | read_xcoff_symtab (struct objfile *objfile, legacy_psymtab *pst) |
c906108c | 919 | { |
98badbfd | 920 | bfd *abfd = objfile->obfd.get (); |
581e13c1 | 921 | char *raw_auxptr; /* Pointer to first raw aux entry for sym. */ |
02dc647e | 922 | struct xcoff_symfile_info *xcoff = XCOFF_DATA (objfile); |
b8b98ad1 TT |
923 | char *strtbl = xcoff->strtbl; |
924 | char *debugsec = xcoff->debugsec; | |
554d387d | 925 | const char *debugfmt = bfd_xcoff_is_xcoff64 (abfd) ? "XCOFF64" : "XCOFF"; |
c906108c SS |
926 | |
927 | struct internal_syment symbol[1]; | |
928 | union internal_auxent main_aux; | |
a7f779c1 | 929 | struct xcoff_symbol cs[1]; |
c906108c SS |
930 | CORE_ADDR file_start_addr = 0; |
931 | CORE_ADDR file_end_addr = 0; | |
932 | ||
933 | int next_file_symnum = -1; | |
934 | unsigned int max_symnum; | |
935 | int just_started = 1; | |
936 | int depth = 0; | |
086850b2 | 937 | CORE_ADDR fcn_start_addr = 0; |
b9718991 | 938 | enum language pst_symtab_language; |
c906108c | 939 | |
a7f779c1 | 940 | struct xcoff_symbol fcn_stab_saved = { 0 }; |
c906108c | 941 | |
581e13c1 | 942 | /* fcn_cs_saved is global because process_xcoff_symbol needs it. */ |
2cbde639 | 943 | union internal_auxent fcn_aux_saved {}; |
fe978cb0 | 944 | struct context_stack *newobj; |
c906108c | 945 | |
9a1e3f00 | 946 | const char *filestring = pst->filename; /* Name of the current file. */ |
c906108c | 947 | |
40301fb7 | 948 | const char *last_csect_name; /* Last seen csect's name. */ |
c906108c SS |
949 | |
950 | this_symtab_psymtab = pst; | |
5c80ed9d | 951 | this_symtab_objfile = objfile; |
c906108c SS |
952 | |
953 | /* Get the appropriate COFF "constants" related to the file we're | |
581e13c1 | 954 | handling. */ |
c906108c SS |
955 | local_symesz = coff_data (abfd)->local_symesz; |
956 | ||
46212e0b | 957 | set_last_source_file (NULL); |
c906108c | 958 | last_csect_name = 0; |
b9718991 | 959 | pst_symtab_language = deduce_language_from_filename (filestring); |
c906108c SS |
960 | |
961 | start_stabs (); | |
59dfe8ad SM |
962 | start_compunit_symtab (objfile, filestring, NULL, file_start_addr, |
963 | pst_symtab_language); | |
7a78ae4e | 964 | record_debugformat (debugfmt); |
77845a9a | 965 | symnum = ((struct xcoff_symloc *) pst->read_symtab_private)->first_symnum; |
c906108c | 966 | max_symnum = |
77845a9a | 967 | symnum + ((struct xcoff_symloc *) pst->read_symtab_private)->numsyms; |
c906108c SS |
968 | first_object_file_end = 0; |
969 | ||
b8b98ad1 | 970 | raw_symbol = xcoff->symtbl + symnum * local_symesz; |
c906108c SS |
971 | |
972 | while (symnum < max_symnum) | |
973 | { | |
c906108c SS |
974 | QUIT; /* make this command interruptable. */ |
975 | ||
976 | /* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */ | |
581e13c1 | 977 | /* read one symbol into `cs' structure. After processing the |
dda83cd7 SM |
978 | whole symbol table, only string table will be kept in memory, |
979 | symbol table and debug section of xcoff will be freed. Thus | |
980 | we can mark symbols with names in string table as | |
981 | `alloced'. */ | |
c906108c SS |
982 | { |
983 | int ii; | |
984 | ||
985 | /* Swap and align the symbol into a reasonable C structure. */ | |
986 | bfd_coff_swap_sym_in (abfd, raw_symbol, symbol); | |
987 | ||
988 | cs->c_symnum = symnum; | |
989 | cs->c_naux = symbol->n_numaux; | |
990 | if (symbol->n_zeroes) | |
991 | { | |
992 | symname_alloced = 0; | |
993 | /* We must use the original, unswapped, name here so the name field | |
994 | pointed to by cs->c_name will persist throughout xcoffread. If | |
995 | we use the new field, it gets overwritten for each symbol. */ | |
c5aa993b | 996 | cs->c_name = ((struct external_syment *) raw_symbol)->e.e_name; |
c906108c SS |
997 | /* If it's exactly E_SYMNMLEN characters long it isn't |
998 | '\0'-terminated. */ | |
999 | if (cs->c_name[E_SYMNMLEN - 1] != '\0') | |
1000 | { | |
1001 | char *p; | |
a109c7c1 | 1002 | |
224c3ddb SM |
1003 | p = (char *) obstack_alloc (&objfile->objfile_obstack, |
1004 | E_SYMNMLEN + 1); | |
c906108c SS |
1005 | strncpy (p, cs->c_name, E_SYMNMLEN); |
1006 | p[E_SYMNMLEN] = '\0'; | |
1007 | cs->c_name = p; | |
1008 | symname_alloced = 1; | |
1009 | } | |
1010 | } | |
1011 | else if (symbol->n_sclass & 0x80) | |
1012 | { | |
1013 | cs->c_name = debugsec + symbol->n_offset; | |
1014 | symname_alloced = 0; | |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | /* in string table */ | |
c5aa993b | 1019 | cs->c_name = strtbl + (int) symbol->n_offset; |
c906108c SS |
1020 | symname_alloced = 1; |
1021 | } | |
1022 | cs->c_value = symbol->n_value; | |
1023 | cs->c_sclass = symbol->n_sclass; | |
1024 | cs->c_secnum = symbol->n_scnum; | |
c5aa993b | 1025 | cs->c_type = (unsigned) symbol->n_type; |
c906108c | 1026 | |
7a78ae4e | 1027 | raw_symbol += local_symesz; |
c906108c SS |
1028 | ++symnum; |
1029 | ||
1030 | /* Save addr of first aux entry. */ | |
1031 | raw_auxptr = raw_symbol; | |
1032 | ||
1033 | /* Skip all the auxents associated with this symbol. */ | |
1034 | for (ii = symbol->n_numaux; ii; --ii) | |
1035 | { | |
1036 | raw_symbol += coff_data (abfd)->local_auxesz; | |
1037 | ++symnum; | |
1038 | } | |
1039 | } | |
1040 | ||
581e13c1 | 1041 | /* if symbol name starts with ".$" or "$", ignore it. */ |
c906108c SS |
1042 | if (cs->c_name[0] == '$' |
1043 | || (cs->c_name[1] == '$' && cs->c_name[0] == '.')) | |
1044 | continue; | |
1045 | ||
1046 | if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE) | |
1047 | { | |
46212e0b | 1048 | if (get_last_source_file ()) |
c906108c | 1049 | { |
83bad316 | 1050 | pst->compunit_symtab = end_compunit_symtab (cur_src_end_addr); |
c906108c SS |
1051 | end_stabs (); |
1052 | } | |
1053 | ||
1054 | start_stabs (); | |
59dfe8ad SM |
1055 | start_compunit_symtab (objfile, "_globals_", NULL, |
1056 | 0, pst_symtab_language); | |
7a78ae4e | 1057 | record_debugformat (debugfmt); |
c906108c | 1058 | cur_src_end_addr = first_object_file_end; |
581e13c1 | 1059 | /* Done with all files, everything from here on is globals. */ |
c906108c SS |
1060 | } |
1061 | ||
55bcecda UW |
1062 | if (cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT || |
1063 | cs->c_sclass == C_WEAKEXT) | |
c906108c SS |
1064 | { |
1065 | /* Dealing with a symbol with a csect entry. */ | |
1066 | ||
1067 | #define CSECT(PP) ((PP)->x_csect) | |
a2c7ca15 | 1068 | #define CSECT_LEN(PP) (CSECT(PP).x_scnlen.u64) |
c906108c SS |
1069 | #define CSECT_ALIGN(PP) (SMTYP_ALIGN(CSECT(PP).x_smtyp)) |
1070 | #define CSECT_SMTYP(PP) (SMTYP_SMTYP(CSECT(PP).x_smtyp)) | |
1071 | #define CSECT_SCLAS(PP) (CSECT(PP).x_smclas) | |
1072 | ||
55bcecda UW |
1073 | /* Convert the auxent to something we can access. |
1074 | XCOFF can have more than one auxiliary entries. | |
1075 | ||
1076 | Actual functions will have two auxiliary entries, one to have the | |
1077 | function size and other to have the smtype/smclass (LD/PR). | |
1078 | ||
1079 | c_type value of main symbol table will be set only in case of | |
1080 | C_EXT/C_HIDEEXT/C_WEAKEXT storage class symbols. | |
1081 | Bit 10 of type is set if symbol is a function, ie the value is set | |
85102364 | 1082 | to 32(0x20). So we need to read the first function auxiliary entry |
55bcecda UW |
1083 | which contains the size. */ |
1084 | if (cs->c_naux > 1 && ISFCN (cs->c_type)) | |
01add95b SM |
1085 | { |
1086 | /* a function entry point. */ | |
55bcecda | 1087 | |
01add95b | 1088 | fcn_start_addr = cs->c_value; |
55bcecda | 1089 | |
01add95b SM |
1090 | /* save the function header info, which will be used |
1091 | when `.bf' is seen. */ | |
1092 | fcn_cs_saved = *cs; | |
55bcecda | 1093 | |
01add95b SM |
1094 | /* Convert the auxent to something we can access. */ |
1095 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1096 | 0, cs->c_naux, &fcn_aux_saved); | |
1097 | continue; | |
1098 | } | |
55bcecda | 1099 | /* Read the csect auxiliary header, which is always the last by |
85102364 | 1100 | convention. */ |
55bcecda UW |
1101 | bfd_coff_swap_aux_in (abfd, |
1102 | raw_auxptr | |
1103 | + ((coff_data (abfd)->local_symesz) | |
1104 | * (cs->c_naux - 1)), | |
1105 | cs->c_type, cs->c_sclass, | |
1106 | cs->c_naux - 1, cs->c_naux, | |
1107 | &main_aux); | |
c906108c SS |
1108 | |
1109 | switch (CSECT_SMTYP (&main_aux)) | |
1110 | { | |
1111 | ||
1112 | case XTY_ER: | |
1113 | /* Ignore all external references. */ | |
1114 | continue; | |
1115 | ||
1116 | case XTY_SD: | |
1117 | /* A section description. */ | |
1118 | { | |
1119 | switch (CSECT_SCLAS (&main_aux)) | |
1120 | { | |
1121 | ||
1122 | case XMC_PR: | |
1123 | { | |
1124 | ||
1125 | /* A program csect is seen. We have to allocate one | |
dda83cd7 SM |
1126 | symbol table for each program csect. Normally gdb |
1127 | prefers one symtab for each source file. In case | |
1128 | of AIX, one source file might include more than one | |
1129 | [PR] csect, and they don't have to be adjacent in | |
1130 | terms of the space they occupy in memory. Thus, one | |
1131 | single source file might get fragmented in the | |
1132 | memory and gdb's file start and end address | |
1133 | approach does not work! GCC (and I think xlc) seem | |
1134 | to put all the code in the unnamed program csect. */ | |
c906108c SS |
1135 | |
1136 | if (last_csect_name) | |
1137 | { | |
1138 | complete_symtab (filestring, file_start_addr); | |
1139 | cur_src_end_addr = file_end_addr; | |
83bad316 | 1140 | end_compunit_symtab (file_end_addr); |
c906108c SS |
1141 | end_stabs (); |
1142 | start_stabs (); | |
1143 | /* Give all csects for this source file the same | |
1144 | name. */ | |
59dfe8ad | 1145 | start_compunit_symtab (objfile, filestring, NULL, |
83bad316 | 1146 | 0, pst_symtab_language); |
7a78ae4e | 1147 | record_debugformat (debugfmt); |
c906108c SS |
1148 | } |
1149 | ||
1150 | /* If this is the very first csect seen, | |
dda83cd7 | 1151 | basically `__start'. */ |
c906108c SS |
1152 | if (just_started) |
1153 | { | |
1154 | first_object_file_end | |
1155 | = cs->c_value + CSECT_LEN (&main_aux); | |
1156 | just_started = 0; | |
1157 | } | |
1158 | ||
1159 | file_start_addr = | |
b3b3bada | 1160 | cs->c_value + objfile->text_section_offset (); |
c906108c SS |
1161 | file_end_addr = file_start_addr + CSECT_LEN (&main_aux); |
1162 | ||
40301fb7 JB |
1163 | if (cs->c_name && (cs->c_name[0] == '.' || cs->c_name[0] == '@')) |
1164 | last_csect_name = cs->c_name; | |
c906108c SS |
1165 | } |
1166 | continue; | |
1167 | ||
1168 | /* All other symbols are put into the minimal symbol | |
1169 | table only. */ | |
1170 | ||
1171 | case XMC_RW: | |
1172 | continue; | |
1173 | ||
1174 | case XMC_TC0: | |
1175 | continue; | |
1176 | ||
1177 | case XMC_TC: | |
1178 | continue; | |
1179 | ||
1180 | default: | |
1181 | /* Ignore the symbol. */ | |
1182 | continue; | |
1183 | } | |
1184 | } | |
1185 | break; | |
1186 | ||
1187 | case XTY_LD: | |
1188 | ||
1189 | switch (CSECT_SCLAS (&main_aux)) | |
1190 | { | |
55bcecda UW |
1191 | /* We never really come to this part as this case has been |
1192 | handled in ISFCN check above. | |
1193 | This and other cases of XTY_LD are kept just for | |
1194 | reference. */ | |
c906108c | 1195 | case XMC_PR: |
c906108c SS |
1196 | continue; |
1197 | ||
1198 | case XMC_GL: | |
581e13c1 | 1199 | /* shared library function trampoline code entry point. */ |
c906108c SS |
1200 | continue; |
1201 | ||
1202 | case XMC_DS: | |
1203 | /* The symbols often have the same names as debug symbols for | |
1204 | functions, and confuse lookup_symbol. */ | |
1205 | continue; | |
1206 | ||
1207 | default: | |
1208 | /* xlc puts each variable in a separate csect, so we get | |
1209 | an XTY_SD for each variable. But gcc puts several | |
1210 | variables in a csect, so that each variable only gets | |
581e13c1 | 1211 | an XTY_LD. This will typically be XMC_RW; I suspect |
c906108c SS |
1212 | XMC_RO and XMC_BS might be possible too. |
1213 | These variables are put in the minimal symbol table | |
1214 | only. */ | |
1215 | continue; | |
1216 | } | |
1217 | break; | |
1218 | ||
1219 | case XTY_CM: | |
1220 | /* Common symbols are put into the minimal symbol table only. */ | |
1221 | continue; | |
1222 | ||
1223 | default: | |
1224 | break; | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | switch (cs->c_sclass) | |
1229 | { | |
c906108c SS |
1230 | case C_FILE: |
1231 | ||
1232 | /* c_value field contains symnum of next .file entry in table | |
581e13c1 | 1233 | or symnum of first global after last .file. */ |
c906108c SS |
1234 | |
1235 | next_file_symnum = cs->c_value; | |
1236 | ||
1237 | /* Complete symbol table for last object file containing | |
581e13c1 | 1238 | debugging information. */ |
c906108c SS |
1239 | |
1240 | /* Whether or not there was a csect in the previous file, we | |
1241 | have to call `end_stabs' and `start_stabs' to reset | |
1242 | type_vector, line_vector, etc. structures. */ | |
1243 | ||
1244 | complete_symtab (filestring, file_start_addr); | |
1245 | cur_src_end_addr = file_end_addr; | |
83bad316 | 1246 | end_compunit_symtab (file_end_addr); |
c906108c SS |
1247 | end_stabs (); |
1248 | ||
3e43a32a MS |
1249 | /* XCOFF, according to the AIX 3.2 documentation, puts the |
1250 | filename in cs->c_name. But xlc 1.3.0.2 has decided to | |
1251 | do things the standard COFF way and put it in the auxent. | |
1252 | We use the auxent if the symbol is ".file" and an auxent | |
1253 | exists, otherwise use the symbol itself. Simple | |
1254 | enough. */ | |
c906108c SS |
1255 | if (!strcmp (cs->c_name, ".file") && cs->c_naux > 0) |
1256 | { | |
1257 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1258 | 0, cs->c_naux, &main_aux); | |
1259 | filestring = coff_getfilename (&main_aux, objfile); | |
1260 | } | |
1261 | else | |
1262 | filestring = cs->c_name; | |
1263 | ||
1264 | start_stabs (); | |
59dfe8ad SM |
1265 | start_compunit_symtab (objfile, filestring, NULL, 0, |
1266 | pst_symtab_language); | |
7a78ae4e | 1267 | record_debugformat (debugfmt); |
c906108c SS |
1268 | last_csect_name = 0; |
1269 | ||
581e13c1 | 1270 | /* reset file start and end addresses. A compilation unit |
3e43a32a | 1271 | with no text (only data) should have zero file |
581e13c1 | 1272 | boundaries. */ |
c906108c SS |
1273 | file_start_addr = file_end_addr = 0; |
1274 | break; | |
1275 | ||
1276 | case C_FUN: | |
1277 | fcn_stab_saved = *cs; | |
1278 | break; | |
1279 | ||
1280 | case C_FCN: | |
7ecb6532 | 1281 | if (strcmp (cs->c_name, ".bf") == 0) |
c906108c | 1282 | { |
b3b3bada | 1283 | CORE_ADDR off = objfile->text_section_offset (); |
a109c7c1 | 1284 | |
c906108c SS |
1285 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, |
1286 | 0, cs->c_naux, &main_aux); | |
1287 | ||
1288 | within_function = 1; | |
1289 | ||
fe978cb0 | 1290 | newobj = push_context (0, fcn_start_addr + off); |
c906108c | 1291 | |
fe978cb0 | 1292 | newobj->name = define_symbol |
c906108c SS |
1293 | (fcn_cs_saved.c_value + off, |
1294 | fcn_stab_saved.c_name, 0, 0, objfile); | |
fe978cb0 | 1295 | if (newobj->name != NULL) |
a52d653e | 1296 | newobj->name->set_section_index (SECT_OFF_TEXT (objfile)); |
c906108c | 1297 | } |
7ecb6532 | 1298 | else if (strcmp (cs->c_name, ".ef") == 0) |
c906108c | 1299 | { |
c906108c SS |
1300 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, |
1301 | 0, cs->c_naux, &main_aux); | |
1302 | ||
1303 | /* The value of .ef is the address of epilogue code; | |
dda83cd7 | 1304 | not useful for gdb. */ |
c906108c | 1305 | /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno |
dda83cd7 | 1306 | contains number of lines to '}' */ |
c906108c | 1307 | |
edb0470b | 1308 | if (outermost_context_p ()) |
581e13c1 | 1309 | { /* We attempted to pop an empty context stack. */ |
23136709 | 1310 | ef_complaint (cs->c_symnum); |
c906108c SS |
1311 | within_function = 0; |
1312 | break; | |
1313 | } | |
a60f3166 | 1314 | struct context_stack cstk = pop_context (); |
c906108c | 1315 | /* Stack must be empty now. */ |
a60f3166 | 1316 | if (!outermost_context_p ()) |
c906108c | 1317 | { |
23136709 | 1318 | ef_complaint (cs->c_symnum); |
c906108c SS |
1319 | within_function = 0; |
1320 | break; | |
1321 | } | |
1322 | ||
c233e9c6 | 1323 | finish_block (cstk.name, cstk.old_blocks, |
a60f3166 | 1324 | NULL, cstk.start_addr, |
c906108c SS |
1325 | (fcn_cs_saved.c_value |
1326 | + fcn_aux_saved.x_sym.x_misc.x_fsize | |
b3b3bada | 1327 | + objfile->text_section_offset ())); |
c906108c SS |
1328 | within_function = 0; |
1329 | } | |
1330 | break; | |
1331 | ||
1332 | case C_BSTAT: | |
1333 | /* Begin static block. */ | |
1334 | { | |
b926417a | 1335 | struct internal_syment static_symbol; |
c906108c | 1336 | |
b926417a TT |
1337 | read_symbol (&static_symbol, cs->c_value); |
1338 | static_block_base = static_symbol.n_value; | |
c906108c | 1339 | static_block_section = |
b926417a | 1340 | secnum_to_section (static_symbol.n_scnum, objfile); |
c906108c SS |
1341 | } |
1342 | break; | |
1343 | ||
1344 | case C_ESTAT: | |
1345 | /* End of static block. */ | |
1346 | static_block_base = 0; | |
1347 | static_block_section = -1; | |
1348 | break; | |
1349 | ||
1350 | case C_ARG: | |
1351 | case C_REGPARM: | |
1352 | case C_REG: | |
1353 | case C_TPDEF: | |
1354 | case C_STRTAG: | |
1355 | case C_UNTAG: | |
1356 | case C_ENTAG: | |
1357 | { | |
b98664d3 | 1358 | complaint (_("Unrecognized storage class %d."), |
23136709 | 1359 | cs->c_sclass); |
c906108c SS |
1360 | } |
1361 | break; | |
1362 | ||
1363 | case C_LABEL: | |
1364 | case C_NULL: | |
1365 | /* Ignore these. */ | |
1366 | break; | |
1367 | ||
1368 | case C_HIDEXT: | |
1369 | case C_STAT: | |
1370 | break; | |
1371 | ||
1372 | case C_BINCL: | |
1373 | /* beginning of include file */ | |
1374 | /* In xlc output, C_BINCL/C_EINCL pair doesn't show up in sorted | |
581e13c1 MS |
1375 | order. Thus, when wee see them, we might not know enough info |
1376 | to process them. Thus, we'll be saving them into a table | |
1377 | (inclTable) and postpone their processing. */ | |
c906108c SS |
1378 | |
1379 | record_include_begin (cs); | |
1380 | break; | |
1381 | ||
1382 | case C_EINCL: | |
1383 | /* End of include file. */ | |
1384 | /* See the comment after case C_BINCL. */ | |
1385 | record_include_end (cs); | |
1386 | break; | |
1387 | ||
1388 | case C_BLOCK: | |
7ecb6532 | 1389 | if (strcmp (cs->c_name, ".bb") == 0) |
c906108c SS |
1390 | { |
1391 | depth++; | |
fe978cb0 | 1392 | newobj = push_context (depth, |
c906108c | 1393 | (cs->c_value |
b3b3bada | 1394 | + objfile->text_section_offset ())); |
c906108c | 1395 | } |
7ecb6532 | 1396 | else if (strcmp (cs->c_name, ".eb") == 0) |
c906108c | 1397 | { |
edb0470b | 1398 | if (outermost_context_p ()) |
581e13c1 | 1399 | { /* We attempted to pop an empty context stack. */ |
23136709 | 1400 | eb_complaint (cs->c_symnum); |
c906108c SS |
1401 | break; |
1402 | } | |
a60f3166 TT |
1403 | struct context_stack cstk = pop_context (); |
1404 | if (depth-- != cstk.depth) | |
c906108c | 1405 | { |
23136709 | 1406 | eb_complaint (cs->c_symnum); |
c906108c SS |
1407 | break; |
1408 | } | |
e148f09d | 1409 | if (*get_local_symbols () && !outermost_context_p ()) |
c906108c SS |
1410 | { |
1411 | /* Make a block for the local symbols within. */ | |
c233e9c6 | 1412 | finish_block (cstk.name, |
a60f3166 TT |
1413 | cstk.old_blocks, NULL, |
1414 | cstk.start_addr, | |
c906108c | 1415 | (cs->c_value |
b3b3bada | 1416 | + objfile->text_section_offset ())); |
c906108c | 1417 | } |
e148f09d | 1418 | *get_local_symbols () = cstk.locals; |
c906108c SS |
1419 | } |
1420 | break; | |
1421 | ||
1422 | default: | |
1423 | process_xcoff_symbol (cs, objfile); | |
1424 | break; | |
1425 | } | |
1426 | } | |
1427 | ||
46212e0b | 1428 | if (get_last_source_file ()) |
c906108c | 1429 | { |
43f3e411 | 1430 | struct compunit_symtab *cust; |
c906108c SS |
1431 | |
1432 | complete_symtab (filestring, file_start_addr); | |
1433 | cur_src_end_addr = file_end_addr; | |
83bad316 | 1434 | cust = end_compunit_symtab (file_end_addr); |
c906108c | 1435 | /* When reading symbols for the last C_FILE of the objfile, try |
dda83cd7 SM |
1436 | to make sure that we set pst->compunit_symtab to the symtab for the |
1437 | file, not to the _globals_ symtab. I'm not sure whether this | |
1438 | actually works right or when/if it comes up. */ | |
43f3e411 DE |
1439 | if (pst->compunit_symtab == NULL) |
1440 | pst->compunit_symtab = cust; | |
c906108c SS |
1441 | end_stabs (); |
1442 | } | |
1443 | } | |
1444 | ||
c906108c | 1445 | #define SYMNAME_ALLOC(NAME, ALLOCED) \ |
021887d8 TT |
1446 | ((ALLOCED) ? (NAME) : obstack_strdup (&objfile->objfile_obstack, \ |
1447 | (NAME))) | |
c906108c SS |
1448 | |
1449 | ||
581e13c1 | 1450 | /* process one xcoff symbol. */ |
c906108c SS |
1451 | |
1452 | static struct symbol * | |
a7f779c1 | 1453 | process_xcoff_symbol (struct xcoff_symbol *cs, struct objfile *objfile) |
c906108c SS |
1454 | { |
1455 | struct symbol onesymbol; | |
52f0bd74 | 1456 | struct symbol *sym = &onesymbol; |
c906108c SS |
1457 | struct symbol *sym2 = NULL; |
1458 | char *name, *pp; | |
1459 | ||
1460 | int sec; | |
1461 | CORE_ADDR off; | |
1462 | ||
1463 | if (cs->c_secnum < 0) | |
1464 | { | |
1465 | /* The value is a register number, offset within a frame, etc., | |
dda83cd7 | 1466 | and does not get relocated. */ |
c906108c SS |
1467 | off = 0; |
1468 | sec = -1; | |
1469 | } | |
1470 | else | |
1471 | { | |
1472 | sec = secnum_to_section (cs->c_secnum, objfile); | |
6a053cb1 | 1473 | off = objfile->section_offsets[sec]; |
c906108c SS |
1474 | } |
1475 | ||
1476 | name = cs->c_name; | |
1477 | if (name[0] == '.') | |
1478 | ++name; | |
1479 | ||
c906108c | 1480 | /* default assumptions */ |
4aeddc50 | 1481 | sym->set_value_address (cs->c_value + off); |
6c9c307c | 1482 | sym->set_domain (VAR_DOMAIN); |
a52d653e | 1483 | sym->set_section_index (secnum_to_section (cs->c_secnum, objfile)); |
c906108c SS |
1484 | |
1485 | if (ISFCN (cs->c_type)) | |
1486 | { | |
1487 | /* At this point, we don't know the type of the function. This | |
dda83cd7 SM |
1488 | will be patched with the type from its stab entry later on in |
1489 | patch_block_stabs (), unless the file was compiled without -g. */ | |
c906108c | 1490 | |
43678b0a | 1491 | sym->set_linkage_name (SYMNAME_ALLOC (name, symname_alloced)); |
a8ed3dde | 1492 | sym->set_type (builtin_type (objfile)->nodebug_text_symbol); |
c906108c | 1493 | |
ba44b1a3 | 1494 | sym->set_aclass_index (LOC_BLOCK); |
8c14c3a3 | 1495 | sym2 = new (&objfile->objfile_obstack) symbol (*sym); |
c906108c | 1496 | |
55bcecda | 1497 | if (cs->c_sclass == C_EXT || C_WEAKEXT) |
e148f09d | 1498 | add_symbol_to_list (sym2, get_global_symbols ()); |
c906108c | 1499 | else if (cs->c_sclass == C_HIDEXT || cs->c_sclass == C_STAT) |
e148f09d | 1500 | add_symbol_to_list (sym2, get_file_symbols ()); |
c906108c SS |
1501 | } |
1502 | else | |
1503 | { | |
581e13c1 | 1504 | /* In case we can't figure out the type, provide default. */ |
a8ed3dde | 1505 | sym->set_type (builtin_type (objfile)->nodebug_data_symbol); |
c906108c SS |
1506 | |
1507 | switch (cs->c_sclass) | |
1508 | { | |
1509 | #if 0 | |
c5aa993b JM |
1510 | /* The values of functions and global symbols are now resolved |
1511 | via the global_sym_chain in stabsread.c. */ | |
c906108c SS |
1512 | case C_FUN: |
1513 | if (fcn_cs_saved.c_sclass == C_EXT) | |
1514 | add_stab_to_list (name, &global_stabs); | |
1515 | else | |
1516 | add_stab_to_list (name, &file_stabs); | |
1517 | break; | |
1518 | ||
1519 | case C_GSYM: | |
1520 | add_stab_to_list (name, &global_stabs); | |
1521 | break; | |
1522 | #endif | |
1523 | ||
1524 | case C_BCOMM: | |
1525 | common_block_start (cs->c_name, objfile); | |
1526 | break; | |
1527 | ||
1528 | case C_ECOMM: | |
1529 | common_block_end (objfile); | |
1530 | break; | |
1531 | ||
1532 | default: | |
b98664d3 | 1533 | complaint (_("Unexpected storage class: %d"), |
23136709 | 1534 | cs->c_sclass); |
c906108c SS |
1535 | /* FALLTHROUGH */ |
1536 | ||
1537 | case C_DECL: | |
1538 | case C_PSYM: | |
1539 | case C_RPSYM: | |
1540 | case C_ECOML: | |
1541 | case C_LSYM: | |
1542 | case C_RSYM: | |
1543 | case C_GSYM: | |
1544 | ||
1545 | { | |
1546 | sym = define_symbol (cs->c_value + off, cs->c_name, 0, 0, objfile); | |
1547 | if (sym != NULL) | |
1548 | { | |
a52d653e | 1549 | sym->set_section_index (sec); |
c906108c SS |
1550 | } |
1551 | return sym; | |
1552 | } | |
1553 | ||
1554 | case C_STSYM: | |
1555 | ||
1556 | /* For xlc (not GCC), the 'V' symbol descriptor is used for | |
1557 | all statics and we need to distinguish file-scope versus | |
1558 | function-scope using within_function. We do this by | |
1559 | changing the string we pass to define_symbol to use 'S' | |
1560 | where we need to, which is not necessarily super-clean, | |
1561 | but seems workable enough. */ | |
1562 | ||
9b13a2db PM |
1563 | if (*name == ':') |
1564 | return NULL; | |
1565 | ||
ed4b0e6a | 1566 | pp = strchr (name, ':'); |
9b13a2db | 1567 | if (pp == NULL) |
c906108c SS |
1568 | return NULL; |
1569 | ||
1570 | ++pp; | |
1571 | if (*pp == 'V' && !within_function) | |
1572 | *pp = 'S'; | |
1573 | sym = define_symbol ((cs->c_value | |
6a053cb1 | 1574 | + objfile->section_offsets[static_block_section]), |
c906108c SS |
1575 | cs->c_name, 0, 0, objfile); |
1576 | if (sym != NULL) | |
1577 | { | |
4aeddc50 SM |
1578 | sym->set_value_address |
1579 | (sym->value_address () + static_block_base); | |
a52d653e | 1580 | sym->set_section_index (static_block_section); |
c906108c SS |
1581 | } |
1582 | return sym; | |
1583 | ||
1584 | } | |
1585 | } | |
1586 | return sym2; | |
1587 | } | |
1588 | ||
1589 | /* Extract the file name from the aux entry of a C_FILE symbol. | |
1590 | Result is in static storage and is only good for temporary use. */ | |
1591 | ||
1592 | static char * | |
fba45db2 | 1593 | coff_getfilename (union internal_auxent *aux_entry, struct objfile *objfile) |
c906108c SS |
1594 | { |
1595 | static char buffer[BUFSIZ]; | |
1596 | ||
b08625af | 1597 | if (aux_entry->x_file.x_n.x_n.x_zeroes == 0) |
b8b98ad1 | 1598 | strcpy (buffer, (XCOFF_DATA (objfile)->strtbl |
b08625af | 1599 | + aux_entry->x_file.x_n.x_n.x_offset)); |
c906108c SS |
1600 | else |
1601 | { | |
200546f1 TV |
1602 | size_t x_fname_len = sizeof (aux_entry->x_file.x_n.x_fname); |
1603 | strncpy (buffer, aux_entry->x_file.x_n.x_fname, x_fname_len); | |
1604 | buffer[x_fname_len] = '\0'; | |
c906108c SS |
1605 | } |
1606 | return (buffer); | |
1607 | } | |
1608 | ||
1609 | /* Set *SYMBOL to symbol number symno in symtbl. */ | |
1610 | static void | |
fba45db2 | 1611 | read_symbol (struct internal_syment *symbol, int symno) |
c906108c | 1612 | { |
02dc647e | 1613 | struct xcoff_symfile_info *xcoff = XCOFF_DATA (this_symtab_objfile); |
b8b98ad1 TT |
1614 | int nsyms = xcoff->symtbl_num_syms; |
1615 | char *stbl = xcoff->symtbl; | |
a109c7c1 | 1616 | |
c906108c SS |
1617 | if (symno < 0 || symno >= nsyms) |
1618 | { | |
b98664d3 | 1619 | complaint (_("Invalid symbol offset")); |
c906108c SS |
1620 | symbol->n_value = 0; |
1621 | symbol->n_scnum = -1; | |
1622 | return; | |
1623 | } | |
98badbfd | 1624 | bfd_coff_swap_sym_in (this_symtab_objfile->obfd.get (), |
c5aa993b | 1625 | stbl + (symno * local_symesz), |
c906108c SS |
1626 | symbol); |
1627 | } | |
c5aa993b | 1628 | |
c906108c SS |
1629 | /* Get value corresponding to symbol number symno in symtbl. */ |
1630 | ||
470d5666 | 1631 | static CORE_ADDR |
fba45db2 | 1632 | read_symbol_nvalue (int symno) |
c906108c SS |
1633 | { |
1634 | struct internal_syment symbol[1]; | |
1635 | ||
1636 | read_symbol (symbol, symno); | |
c5aa993b | 1637 | return symbol->n_value; |
c906108c SS |
1638 | } |
1639 | ||
1640 | ||
1641 | /* Find the address of the function corresponding to symno, where | |
1642 | symno is the symbol pointed to by the linetable. */ | |
1643 | ||
1644 | static int | |
fba45db2 | 1645 | read_symbol_lineno (int symno) |
c906108c | 1646 | { |
5c80ed9d | 1647 | struct objfile *objfile = this_symtab_objfile; |
7af35dad | 1648 | int xcoff64 = bfd_xcoff_is_xcoff64 (objfile->obfd); |
7a78ae4e | 1649 | |
02dc647e | 1650 | struct xcoff_symfile_info *info = XCOFF_DATA (objfile); |
7a78ae4e ND |
1651 | int nsyms = info->symtbl_num_syms; |
1652 | char *stbl = info->symtbl; | |
1653 | char *strtbl = info->strtbl; | |
1654 | ||
c906108c SS |
1655 | struct internal_syment symbol[1]; |
1656 | union internal_auxent main_aux[1]; | |
1657 | ||
1658 | if (symno < 0) | |
1659 | { | |
23136709 | 1660 | bf_notfound_complaint (); |
c906108c SS |
1661 | return 0; |
1662 | } | |
1663 | ||
1664 | /* Note that just searching for a short distance (e.g. 50 symbols) | |
1665 | is not enough, at least in the following case. | |
1666 | ||
1667 | .extern foo | |
1668 | [many .stabx entries] | |
1669 | [a few functions, referring to foo] | |
1670 | .globl foo | |
1671 | .bf | |
1672 | ||
1673 | What happens here is that the assembler moves the .stabx entries | |
1674 | to right before the ".bf" for foo, but the symbol for "foo" is before | |
1675 | all the stabx entries. See PR gdb/2222. */ | |
1676 | ||
1677 | /* Maintaining a table of .bf entries might be preferable to this search. | |
1678 | If I understand things correctly it would need to be done only for | |
1679 | the duration of a single psymtab to symtab conversion. */ | |
1680 | while (symno < nsyms) | |
1681 | { | |
1682 | bfd_coff_swap_sym_in (symfile_bfd, | |
1683 | stbl + (symno * local_symesz), symbol); | |
7a78ae4e ND |
1684 | if (symbol->n_sclass == C_FCN) |
1685 | { | |
1686 | char *name = xcoff64 ? strtbl + symbol->n_offset : symbol->n_name; | |
a109c7c1 | 1687 | |
7ecb6532 | 1688 | if (strcmp (name, ".bf") == 0) |
7a78ae4e ND |
1689 | goto gotit; |
1690 | } | |
c906108c SS |
1691 | symno += symbol->n_numaux + 1; |
1692 | } | |
1693 | ||
23136709 | 1694 | bf_notfound_complaint (); |
c906108c SS |
1695 | return 0; |
1696 | ||
1697 | gotit: | |
581e13c1 | 1698 | /* Take aux entry and return its lineno. */ |
c906108c | 1699 | symno++; |
98badbfd | 1700 | bfd_coff_swap_aux_in (objfile->obfd.get (), stbl + symno * local_symesz, |
c906108c SS |
1701 | symbol->n_type, symbol->n_sclass, |
1702 | 0, symbol->n_numaux, main_aux); | |
1703 | ||
1704 | return main_aux->x_sym.x_misc.x_lnsz.x_lnno; | |
1705 | } | |
1706 | ||
581e13c1 | 1707 | /* Support for line number handling. */ |
c906108c SS |
1708 | |
1709 | /* This function is called for every section; it finds the outer limits | |
1710 | * of the line table (minimum and maximum file offset) so that the | |
1711 | * mainline code can read the whole thing for efficiency. | |
1712 | */ | |
1713 | static void | |
7be0c536 | 1714 | find_linenos (struct bfd *abfd, struct bfd_section *asect, void *vpinfo) |
c906108c | 1715 | { |
02dc647e | 1716 | struct xcoff_symfile_info *info; |
c906108c SS |
1717 | int size, count; |
1718 | file_ptr offset, maxoff; | |
1719 | ||
1720 | count = asect->lineno_count; | |
1721 | ||
7ecb6532 | 1722 | if (strcmp (asect->name, ".text") != 0 || count == 0) |
c906108c SS |
1723 | return; |
1724 | ||
1725 | size = count * coff_data (abfd)->local_linesz; | |
02dc647e | 1726 | info = (struct xcoff_symfile_info *) vpinfo; |
c906108c SS |
1727 | offset = asect->line_filepos; |
1728 | maxoff = offset + size; | |
1729 | ||
1730 | if (offset < info->min_lineno_offset || info->min_lineno_offset == 0) | |
1731 | info->min_lineno_offset = offset; | |
1732 | ||
1733 | if (maxoff > info->max_lineno_offset) | |
1734 | info->max_lineno_offset = maxoff; | |
1735 | } | |
1736 | \f | |
c906108c | 1737 | static void |
69b037c3 | 1738 | xcoff_expand_psymtab (legacy_psymtab *pst, struct objfile *objfile) |
c906108c | 1739 | { |
0494dbec | 1740 | gdb_assert (!pst->readin); |
c906108c | 1741 | |
581e13c1 | 1742 | /* Read in all partial symtabs on which this one is dependent. */ |
48993951 | 1743 | pst->expand_dependencies (objfile); |
c906108c | 1744 | |
77845a9a | 1745 | if (((struct xcoff_symloc *) pst->read_symtab_private)->numsyms != 0) |
c906108c SS |
1746 | { |
1747 | /* Init stuff necessary for reading in symbols. */ | |
1748 | stabsread_init (); | |
c906108c | 1749 | |
33c7c59d | 1750 | scoped_free_pendings free_pending; |
5c80ed9d | 1751 | read_xcoff_symtab (objfile, pst); |
c906108c SS |
1752 | } |
1753 | ||
6d94535f | 1754 | pst->readin = true; |
c906108c SS |
1755 | } |
1756 | ||
c906108c | 1757 | /* Read in all of the symbols for a given psymtab for real. |
257e7a09 | 1758 | Be verbose about it if the user wants that. SELF is not NULL. */ |
c906108c SS |
1759 | |
1760 | static void | |
891813be | 1761 | xcoff_read_symtab (legacy_psymtab *self, struct objfile *objfile) |
c906108c | 1762 | { |
077cbab2 | 1763 | gdb_assert (!self->readin); |
c906108c | 1764 | |
77845a9a | 1765 | if (((struct xcoff_symloc *) self->read_symtab_private)->numsyms != 0 |
257e7a09 | 1766 | || self->number_of_dependencies) |
c906108c | 1767 | { |
c906108c SS |
1768 | next_symbol_text_func = xcoff_next_symbol_text; |
1769 | ||
8566b89b | 1770 | self->expand_psymtab (objfile); |
c906108c SS |
1771 | |
1772 | /* Match with global symbols. This only needs to be done once, | |
dda83cd7 | 1773 | after all of the symtabs and dependencies have been read in. */ |
5c80ed9d | 1774 | scan_file_globals (objfile); |
c906108c SS |
1775 | } |
1776 | } | |
1777 | \f | |
1778 | static void | |
fba45db2 | 1779 | xcoff_new_init (struct objfile *objfile) |
c906108c SS |
1780 | { |
1781 | stabsread_new_init (); | |
c906108c SS |
1782 | } |
1783 | ||
1784 | /* Do initialization in preparation for reading symbols from OBJFILE. | |
c5aa993b | 1785 | |
c906108c SS |
1786 | We will only be called if this is an XCOFF or XCOFF-like file. |
1787 | BFD handles figuring out the format of the file, and code in symfile.c | |
1788 | uses BFD's determination to vector to us. */ | |
1789 | ||
1790 | static void | |
fba45db2 | 1791 | xcoff_symfile_init (struct objfile *objfile) |
c906108c | 1792 | { |
581e13c1 | 1793 | /* Allocate struct to keep track of the symfile. */ |
02dc647e | 1794 | xcoff_objfile_data_key.emplace (objfile); |
c906108c SS |
1795 | } |
1796 | ||
1797 | /* Perform any local cleanups required when we are done with a particular | |
1798 | objfile. I.E, we are in the process of discarding all symbol information | |
1799 | for an objfile, freeing up all memory held for it, and unlinking the | |
581e13c1 | 1800 | objfile struct from the global list of known objfiles. */ |
c906108c SS |
1801 | |
1802 | static void | |
fba45db2 | 1803 | xcoff_symfile_finish (struct objfile *objfile) |
c906108c | 1804 | { |
c906108c SS |
1805 | /* Start with a fresh include table for the next objfile. */ |
1806 | if (inclTable) | |
1807 | { | |
b8c9b27d | 1808 | xfree (inclTable); |
c906108c | 1809 | inclTable = NULL; |
433e8364 | 1810 | delete main_subfile; |
c906108c SS |
1811 | } |
1812 | inclIndx = inclLength = inclDepth = 0; | |
1813 | } | |
1814 | ||
1815 | ||
1816 | static void | |
fba45db2 | 1817 | init_stringtab (bfd *abfd, file_ptr offset, struct objfile *objfile) |
c906108c SS |
1818 | { |
1819 | long length; | |
1820 | int val; | |
1821 | unsigned char lengthbuf[4]; | |
1822 | char *strtbl; | |
02dc647e | 1823 | struct xcoff_symfile_info *xcoff = XCOFF_DATA (objfile); |
c906108c | 1824 | |
b8b98ad1 | 1825 | xcoff->strtbl = NULL; |
c906108c SS |
1826 | |
1827 | if (bfd_seek (abfd, offset, SEEK_SET) < 0) | |
8a3fe4f8 | 1828 | error (_("cannot seek to string table in %s: %s"), |
c906108c SS |
1829 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
1830 | ||
226f9f4f | 1831 | val = bfd_read ((char *) lengthbuf, sizeof lengthbuf, abfd); |
c906108c SS |
1832 | length = bfd_h_get_32 (abfd, lengthbuf); |
1833 | ||
1834 | /* If no string table is needed, then the file may end immediately | |
1835 | after the symbols. Just return with `strtbl' set to NULL. */ | |
1836 | ||
1837 | if (val != sizeof lengthbuf || length < sizeof lengthbuf) | |
1838 | return; | |
1839 | ||
581e13c1 MS |
1840 | /* Allocate string table from objfile_obstack. We will need this table |
1841 | as long as we have its symbol table around. */ | |
c906108c | 1842 | |
4a146b47 | 1843 | strtbl = (char *) obstack_alloc (&objfile->objfile_obstack, length); |
b8b98ad1 | 1844 | xcoff->strtbl = strtbl; |
c906108c SS |
1845 | |
1846 | /* Copy length buffer, the first byte is usually zero and is | |
1847 | used for stabs with a name length of zero. */ | |
1848 | memcpy (strtbl, lengthbuf, sizeof lengthbuf); | |
1849 | if (length == sizeof lengthbuf) | |
1850 | return; | |
1851 | ||
226f9f4f | 1852 | val = bfd_read (strtbl + sizeof lengthbuf, length - sizeof lengthbuf, abfd); |
c906108c SS |
1853 | |
1854 | if (val != length - sizeof lengthbuf) | |
8a3fe4f8 | 1855 | error (_("cannot read string table from %s: %s"), |
c906108c SS |
1856 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
1857 | if (strtbl[length - 1] != '\0') | |
3e43a32a MS |
1858 | error (_("bad symbol file: string table " |
1859 | "does not end with null character")); | |
c906108c SS |
1860 | |
1861 | return; | |
1862 | } | |
1863 | \f | |
1864 | /* If we have not yet seen a function for this psymtab, this is 0. If we | |
1865 | have seen one, it is the offset in the line numbers of the line numbers | |
1866 | for the psymtab. */ | |
1867 | static unsigned int first_fun_line_offset; | |
1868 | ||
c906108c SS |
1869 | /* Allocate and partially fill a partial symtab. It will be |
1870 | completely filled at the end of the symbol list. | |
1871 | ||
1872 | SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR | |
1873 | is the address relative to which its symbols are (incremental) or 0 | |
581e13c1 | 1874 | (normal). */ |
c906108c | 1875 | |
891813be | 1876 | static legacy_psymtab * |
7b249e47 TT |
1877 | xcoff_start_psymtab (psymtab_storage *partial_symtabs, |
1878 | struct objfile *objfile, | |
939652a5 | 1879 | const char *filename, int first_symnum) |
c906108c | 1880 | { |
c3693a1d | 1881 | /* We fill in textlow later. */ |
7b249e47 | 1882 | legacy_psymtab *result = new legacy_psymtab (filename, partial_symtabs, |
584d0cda TT |
1883 | objfile->per_bfd, |
1884 | unrelocated_addr (0)); | |
c906108c | 1885 | |
8d749320 | 1886 | result->read_symtab_private = |
77845a9a TT |
1887 | XOBNEW (&objfile->objfile_obstack, struct xcoff_symloc); |
1888 | ((struct xcoff_symloc *) result->read_symtab_private)->first_symnum = first_symnum; | |
891813be | 1889 | result->legacy_read_symtab = xcoff_read_symtab; |
69b037c3 | 1890 | result->legacy_expand_psymtab = xcoff_expand_psymtab; |
c906108c | 1891 | |
581e13c1 | 1892 | /* Deduce the source language from the filename for this psymtab. */ |
c906108c SS |
1893 | psymtab_language = deduce_language_from_filename (filename); |
1894 | ||
1895 | return result; | |
1896 | } | |
1897 | ||
581e13c1 | 1898 | /* Close off the current usage of PST. |
c906108c SS |
1899 | Returns PST, or NULL if the partial symtab was empty and thrown away. |
1900 | ||
1901 | CAPPING_SYMBOL_NUMBER is the end of pst (exclusive). | |
1902 | ||
1903 | INCLUDE_LIST, NUM_INCLUDES, DEPENDENCY_LIST, and NUMBER_DEPENDENCIES | |
1904 | are the information for includes and dependencies. */ | |
1905 | ||
891813be | 1906 | static legacy_psymtab * |
7e9c0476 TT |
1907 | xcoff_end_psymtab (struct objfile *objfile, psymtab_storage *partial_symtabs, |
1908 | legacy_psymtab *pst, | |
5c80ed9d TT |
1909 | const char **include_list, int num_includes, |
1910 | int capping_symbol_number, | |
891813be | 1911 | legacy_psymtab **dependency_list, |
fba45db2 | 1912 | int number_dependencies, int textlow_not_set) |
c906108c SS |
1913 | { |
1914 | int i; | |
c906108c SS |
1915 | |
1916 | if (capping_symbol_number != -1) | |
77845a9a | 1917 | ((struct xcoff_symloc *) pst->read_symtab_private)->numsyms = |
c906108c | 1918 | capping_symbol_number |
77845a9a TT |
1919 | - ((struct xcoff_symloc *) pst->read_symtab_private)->first_symnum; |
1920 | ((struct xcoff_symloc *) pst->read_symtab_private)->lineno_off = | |
c906108c SS |
1921 | first_fun_line_offset; |
1922 | first_fun_line_offset = 0; | |
8763cede | 1923 | |
ae7754b2 | 1924 | pst->end (); |
c906108c SS |
1925 | |
1926 | pst->number_of_dependencies = number_dependencies; | |
1927 | if (number_dependencies) | |
1928 | { | |
a9342b62 | 1929 | pst->dependencies |
7e9c0476 | 1930 | = partial_symtabs->allocate_dependencies (number_dependencies); |
c906108c | 1931 | memcpy (pst->dependencies, dependency_list, |
891813be | 1932 | number_dependencies * sizeof (legacy_psymtab *)); |
c906108c SS |
1933 | } |
1934 | else | |
1935 | pst->dependencies = 0; | |
1936 | ||
1937 | for (i = 0; i < num_includes; i++) | |
1938 | { | |
891813be | 1939 | legacy_psymtab *subpst = |
0072c873 | 1940 | new legacy_psymtab (include_list[i], partial_symtabs, objfile->per_bfd); |
c906108c | 1941 | |
77845a9a TT |
1942 | subpst->read_symtab_private = XOBNEW (&objfile->objfile_obstack, xcoff_symloc); |
1943 | ((struct xcoff_symloc *) subpst->read_symtab_private)->first_symnum = 0; | |
1944 | ((struct xcoff_symloc *) subpst->read_symtab_private)->numsyms = 0; | |
c906108c SS |
1945 | |
1946 | /* We could save slight bits of space by only making one of these, | |
dda83cd7 | 1947 | shared by the entire set of include files. FIXME-someday. */ |
8d749320 | 1948 | subpst->dependencies = |
7e9c0476 | 1949 | partial_symtabs->allocate_dependencies (1); |
c906108c SS |
1950 | subpst->dependencies[0] = pst; |
1951 | subpst->number_of_dependencies = 1; | |
1952 | ||
891813be | 1953 | subpst->legacy_read_symtab = pst->legacy_read_symtab; |
8566b89b | 1954 | subpst->legacy_expand_psymtab = pst->legacy_expand_psymtab; |
c906108c SS |
1955 | } |
1956 | ||
c906108c SS |
1957 | if (num_includes == 0 |
1958 | && number_dependencies == 0 | |
932539d7 | 1959 | && pst->empty ()) |
c906108c | 1960 | { |
e0814aae | 1961 | /* Throw away this psymtab, it's empty. */ |
c906108c | 1962 | /* Empty psymtabs happen as a result of header files which don't have |
dda83cd7 | 1963 | any symbols in them. There can be a lot of them. */ |
c906108c | 1964 | |
7e9c0476 | 1965 | partial_symtabs->discard_psymtab (pst); |
c906108c SS |
1966 | |
1967 | /* Indicate that psymtab was thrown away. */ | |
be903358 | 1968 | pst = NULL; |
c906108c SS |
1969 | } |
1970 | return pst; | |
1971 | } | |
1972 | ||
c906108c SS |
1973 | /* Swap raw symbol at *RAW and put the name in *NAME, the symbol in |
1974 | *SYMBOL, the first auxent in *AUX. Advance *RAW and *SYMNUMP over | |
1975 | the symbol and its auxents. */ | |
1976 | ||
1977 | static void | |
fba45db2 | 1978 | swap_sym (struct internal_syment *symbol, union internal_auxent *aux, |
0d5cff50 | 1979 | const char **name, char **raw, unsigned int *symnump, |
fba45db2 | 1980 | struct objfile *objfile) |
c906108c | 1981 | { |
98badbfd | 1982 | bfd_coff_swap_sym_in (objfile->obfd.get (), *raw, symbol); |
c906108c SS |
1983 | if (symbol->n_zeroes) |
1984 | { | |
1985 | /* If it's exactly E_SYMNMLEN characters long it isn't | |
dda83cd7 | 1986 | '\0'-terminated. */ |
c906108c SS |
1987 | if (symbol->n_name[E_SYMNMLEN - 1] != '\0') |
1988 | { | |
1989 | /* FIXME: wastes memory for symbols which we don't end up putting | |
1990 | into the minimal symbols. */ | |
1991 | char *p; | |
a109c7c1 | 1992 | |
224c3ddb SM |
1993 | p = (char *) obstack_alloc (&objfile->objfile_obstack, |
1994 | E_SYMNMLEN + 1); | |
c906108c SS |
1995 | strncpy (p, symbol->n_name, E_SYMNMLEN); |
1996 | p[E_SYMNMLEN] = '\0'; | |
1997 | *name = p; | |
1998 | } | |
1999 | else | |
2000 | /* Point to the unswapped name as that persists as long as the | |
2001 | objfile does. */ | |
c5aa993b | 2002 | *name = ((struct external_syment *) *raw)->e.e_name; |
c906108c SS |
2003 | } |
2004 | else if (symbol->n_sclass & 0x80) | |
2005 | { | |
b8b98ad1 | 2006 | *name = XCOFF_DATA (objfile)->debugsec + symbol->n_offset; |
c906108c SS |
2007 | } |
2008 | else | |
2009 | { | |
b8b98ad1 | 2010 | *name = XCOFF_DATA (objfile)->strtbl + symbol->n_offset; |
c906108c SS |
2011 | } |
2012 | ++*symnump; | |
2013 | *raw += coff_data (objfile->obfd)->local_symesz; | |
2014 | if (symbol->n_numaux > 0) | |
2015 | { | |
98badbfd | 2016 | bfd_coff_swap_aux_in (objfile->obfd.get (), *raw, symbol->n_type, |
c906108c SS |
2017 | symbol->n_sclass, 0, symbol->n_numaux, aux); |
2018 | ||
2019 | *symnump += symbol->n_numaux; | |
2020 | *raw += coff_data (objfile->obfd)->local_symesz * symbol->n_numaux; | |
2021 | } | |
2022 | } | |
2023 | ||
23136709 KB |
2024 | static void |
2025 | function_outside_compilation_unit_complaint (const char *arg1) | |
2026 | { | |
b98664d3 | 2027 | complaint (_("function `%s' appears to be defined " |
3e43a32a | 2028 | "outside of all compilation units"), |
23136709 KB |
2029 | arg1); |
2030 | } | |
2031 | ||
c906108c | 2032 | static void |
8dddcb8f | 2033 | scan_xcoff_symtab (minimal_symbol_reader &reader, |
7e9c0476 | 2034 | psymtab_storage *partial_symtabs, |
8dddcb8f | 2035 | struct objfile *objfile) |
c906108c | 2036 | { |
581e13c1 | 2037 | CORE_ADDR toc_offset = 0; /* toc offset value in data section. */ |
0d5cff50 | 2038 | const char *filestring = NULL; |
c906108c | 2039 | |
0d5cff50 | 2040 | const char *namestring; |
c906108c SS |
2041 | bfd *abfd; |
2042 | asection *bfd_sect; | |
2043 | unsigned int nsyms; | |
2044 | ||
2045 | /* Current partial symtab */ | |
891813be | 2046 | legacy_psymtab *pst; |
c906108c | 2047 | |
581e13c1 | 2048 | /* List of current psymtab's include files. */ |
0d5cff50 | 2049 | const char **psymtab_include_list; |
c906108c SS |
2050 | int includes_allocated; |
2051 | int includes_used; | |
2052 | ||
581e13c1 | 2053 | /* Index within current psymtab dependency list. */ |
891813be | 2054 | legacy_psymtab **dependency_list; |
c906108c SS |
2055 | int dependencies_used, dependencies_allocated; |
2056 | ||
2057 | char *sraw_symbol; | |
2058 | struct internal_syment symbol; | |
96baa820 | 2059 | union internal_auxent main_aux[5]; |
c906108c SS |
2060 | unsigned int ssymnum; |
2061 | ||
0d5cff50 | 2062 | const char *last_csect_name = NULL; /* Last seen csect's name and value. */ |
9675da25 | 2063 | unrelocated_addr last_csect_val = unrelocated_addr (0); |
c906108c | 2064 | int last_csect_sec = 0; |
581e13c1 | 2065 | int misc_func_recorded = 0; /* true if any misc. function. */ |
c906108c SS |
2066 | int textlow_not_set = 1; |
2067 | ||
891813be | 2068 | pst = (legacy_psymtab *) 0; |
c906108c SS |
2069 | |
2070 | includes_allocated = 30; | |
2071 | includes_used = 0; | |
0d5cff50 DE |
2072 | psymtab_include_list = (const char **) alloca (includes_allocated * |
2073 | sizeof (const char *)); | |
c906108c SS |
2074 | |
2075 | dependencies_allocated = 30; | |
2076 | dependencies_used = 0; | |
2077 | dependency_list = | |
891813be TT |
2078 | (legacy_psymtab **) alloca (dependencies_allocated * |
2079 | sizeof (legacy_psymtab *)); | |
c906108c | 2080 | |
46212e0b | 2081 | set_last_source_file (NULL); |
c906108c | 2082 | |
98badbfd | 2083 | abfd = objfile->obfd.get (); |
13c763f4 | 2084 | next_symbol_text_func = xcoff_next_symbol_text; |
c906108c | 2085 | |
b8b98ad1 TT |
2086 | sraw_symbol = XCOFF_DATA (objfile)->symtbl; |
2087 | nsyms = XCOFF_DATA (objfile)->symtbl_num_syms; | |
c906108c SS |
2088 | ssymnum = 0; |
2089 | while (ssymnum < nsyms) | |
2090 | { | |
7a78ae4e | 2091 | int sclass; |
c906108c SS |
2092 | |
2093 | QUIT; | |
2094 | ||
7a78ae4e ND |
2095 | bfd_coff_swap_sym_in (abfd, sraw_symbol, &symbol); |
2096 | sclass = symbol.n_sclass; | |
2097 | ||
c906108c SS |
2098 | switch (sclass) |
2099 | { | |
2100 | case C_EXT: | |
2101 | case C_HIDEXT: | |
55bcecda | 2102 | case C_WEAKEXT: |
c906108c SS |
2103 | { |
2104 | /* The CSECT auxent--always the last auxent. */ | |
2105 | union internal_auxent csect_aux; | |
2106 | unsigned int symnum_before = ssymnum; | |
2107 | ||
96baa820 | 2108 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
c906108c SS |
2109 | &ssymnum, objfile); |
2110 | if (symbol.n_numaux > 1) | |
2111 | { | |
2112 | bfd_coff_swap_aux_in | |
98badbfd | 2113 | (objfile->obfd.get (), |
c5aa993b | 2114 | sraw_symbol - coff_data (abfd)->local_symesz, |
c906108c SS |
2115 | symbol.n_type, |
2116 | symbol.n_sclass, | |
2117 | symbol.n_numaux - 1, | |
2118 | symbol.n_numaux, | |
2119 | &csect_aux); | |
2120 | } | |
2121 | else | |
96baa820 | 2122 | csect_aux = main_aux[0]; |
c906108c | 2123 | |
977adac5 ND |
2124 | /* If symbol name starts with ".$" or "$", ignore it. */ |
2125 | if (namestring[0] == '$' | |
c906108c SS |
2126 | || (namestring[0] == '.' && namestring[1] == '$')) |
2127 | break; | |
2128 | ||
2129 | switch (csect_aux.x_csect.x_smtyp & 0x7) | |
2130 | { | |
2131 | case XTY_SD: | |
2132 | switch (csect_aux.x_csect.x_smclas) | |
2133 | { | |
2134 | case XMC_PR: | |
2135 | if (last_csect_name) | |
2136 | { | |
2137 | /* If no misc. function recorded in the last | |
581e13c1 | 2138 | seen csect, enter it as a function. This |
c906108c SS |
2139 | will take care of functions like strcmp() |
2140 | compiled by xlc. */ | |
2141 | ||
2142 | if (!misc_func_recorded) | |
2143 | { | |
ec92004f | 2144 | record_minimal_symbol |
8dddcb8f | 2145 | (reader, last_csect_name, last_csect_val, |
ec92004f JB |
2146 | mst_text, last_csect_sec, objfile); |
2147 | misc_func_recorded = 1; | |
c906108c SS |
2148 | } |
2149 | ||
2150 | if (pst != NULL) | |
2151 | { | |
2152 | /* We have to allocate one psymtab for | |
2153 | each program csect, because their text | |
2154 | sections need not be adjacent. */ | |
2155 | xcoff_end_psymtab | |
7e9c0476 | 2156 | (objfile, partial_symtabs, pst, psymtab_include_list, |
5c80ed9d | 2157 | includes_used, symnum_before, dependency_list, |
c906108c SS |
2158 | dependencies_used, textlow_not_set); |
2159 | includes_used = 0; | |
2160 | dependencies_used = 0; | |
2161 | /* Give all psymtabs for this source file the same | |
2162 | name. */ | |
2163 | pst = xcoff_start_psymtab | |
7b249e47 | 2164 | (partial_symtabs, objfile, |
c906108c | 2165 | filestring, |
939652a5 | 2166 | symnum_before); |
c906108c SS |
2167 | } |
2168 | } | |
977adac5 ND |
2169 | /* Activate the misc_func_recorded mechanism for |
2170 | compiler- and linker-generated CSECTs like ".strcmp" | |
2171 | and "@FIX1". */ | |
2172 | if (namestring && (namestring[0] == '.' | |
2173 | || namestring[0] == '@')) | |
c906108c SS |
2174 | { |
2175 | last_csect_name = namestring; | |
9675da25 | 2176 | last_csect_val = unrelocated_addr (symbol.n_value); |
ec92004f | 2177 | last_csect_sec = symbol.n_scnum; |
c906108c SS |
2178 | } |
2179 | if (pst != NULL) | |
2180 | { | |
584d0cda TT |
2181 | unrelocated_addr highval |
2182 | = unrelocated_addr (symbol.n_value | |
2183 | + CSECT_LEN (&csect_aux)); | |
a109c7c1 | 2184 | |
93d50cd8 | 2185 | if (highval > pst->unrelocated_text_high ()) |
4ae976d1 | 2186 | pst->set_text_high (highval); |
584d0cda TT |
2187 | unrelocated_addr loval |
2188 | = unrelocated_addr (symbol.n_value); | |
93d50cd8 TT |
2189 | if (!pst->text_low_valid |
2190 | || loval < pst->unrelocated_text_low ()) | |
584d0cda | 2191 | pst->set_text_low (loval); |
c906108c SS |
2192 | } |
2193 | misc_func_recorded = 0; | |
2194 | break; | |
2195 | ||
2196 | case XMC_RW: | |
6904b546 | 2197 | case XMC_TD: |
c906108c SS |
2198 | /* Data variables are recorded in the minimal symbol |
2199 | table, except for section symbols. */ | |
2200 | if (*namestring != '.') | |
4d1eb6b4 | 2201 | record_minimal_symbol |
9675da25 | 2202 | (reader, namestring, unrelocated_addr (symbol.n_value), |
c906108c | 2203 | sclass == C_HIDEXT ? mst_file_data : mst_data, |
4d1eb6b4 | 2204 | symbol.n_scnum, objfile); |
c906108c SS |
2205 | break; |
2206 | ||
2207 | case XMC_TC0: | |
2208 | if (toc_offset) | |
8a3fe4f8 | 2209 | warning (_("More than one XMC_TC0 symbol found.")); |
c906108c SS |
2210 | toc_offset = symbol.n_value; |
2211 | ||
3e43a32a MS |
2212 | /* Make TOC offset relative to start address of |
2213 | section. */ | |
c906108c SS |
2214 | bfd_sect = secnum_to_bfd_section (symbol.n_scnum, objfile); |
2215 | if (bfd_sect) | |
fd361982 | 2216 | toc_offset -= bfd_section_vma (bfd_sect); |
c906108c SS |
2217 | break; |
2218 | ||
2219 | case XMC_TC: | |
2220 | /* These symbols tell us where the TOC entry for a | |
2221 | variable is, not the variable itself. */ | |
2222 | break; | |
2223 | ||
2224 | default: | |
2225 | break; | |
2226 | } | |
2227 | break; | |
2228 | ||
2229 | case XTY_LD: | |
2230 | switch (csect_aux.x_csect.x_smclas) | |
2231 | { | |
2232 | case XMC_PR: | |
2233 | /* A function entry point. */ | |
2234 | ||
2235 | if (first_fun_line_offset == 0 && symbol.n_numaux > 1) | |
2236 | first_fun_line_offset = | |
96baa820 | 2237 | main_aux[0].x_sym.x_fcnary.x_fcn.x_lnnoptr; |
a2e3e93f SM |
2238 | |
2239 | record_minimal_symbol | |
9675da25 | 2240 | (reader, namestring, unrelocated_addr (symbol.n_value), |
a2e3e93f SM |
2241 | sclass == C_HIDEXT ? mst_file_text : mst_text, |
2242 | symbol.n_scnum, objfile); | |
2243 | misc_func_recorded = 1; | |
c906108c SS |
2244 | break; |
2245 | ||
2246 | case XMC_GL: | |
2247 | /* shared library function trampoline code entry | |
581e13c1 | 2248 | point. */ |
c906108c SS |
2249 | |
2250 | /* record trampoline code entries as | |
2251 | mst_solib_trampoline symbol. When we lookup mst | |
2252 | symbols, we will choose mst_text over | |
581e13c1 | 2253 | mst_solib_trampoline. */ |
ec92004f | 2254 | record_minimal_symbol |
9675da25 | 2255 | (reader, namestring, unrelocated_addr (symbol.n_value), |
ec92004f JB |
2256 | mst_solib_trampoline, symbol.n_scnum, objfile); |
2257 | misc_func_recorded = 1; | |
c906108c SS |
2258 | break; |
2259 | ||
2260 | case XMC_DS: | |
2261 | /* The symbols often have the same names as | |
2262 | debug symbols for functions, and confuse | |
2263 | lookup_symbol. */ | |
2264 | break; | |
2265 | ||
2266 | default: | |
2267 | ||
2268 | /* xlc puts each variable in a separate csect, | |
2269 | so we get an XTY_SD for each variable. But | |
2270 | gcc puts several variables in a csect, so | |
2271 | that each variable only gets an XTY_LD. We | |
2272 | still need to record them. This will | |
2273 | typically be XMC_RW; I suspect XMC_RO and | |
2274 | XMC_BS might be possible too. */ | |
2275 | if (*namestring != '.') | |
4d1eb6b4 | 2276 | record_minimal_symbol |
9675da25 | 2277 | (reader, namestring, unrelocated_addr (symbol.n_value), |
c906108c | 2278 | sclass == C_HIDEXT ? mst_file_data : mst_data, |
4d1eb6b4 | 2279 | symbol.n_scnum, objfile); |
c906108c SS |
2280 | break; |
2281 | } | |
2282 | break; | |
2283 | ||
2284 | case XTY_CM: | |
2285 | switch (csect_aux.x_csect.x_smclas) | |
2286 | { | |
2287 | case XMC_RW: | |
2288 | case XMC_BS: | |
2289 | /* Common variables are recorded in the minimal symbol | |
2290 | table, except for section symbols. */ | |
2291 | if (*namestring != '.') | |
4d1eb6b4 | 2292 | record_minimal_symbol |
9675da25 | 2293 | (reader, namestring, unrelocated_addr (symbol.n_value), |
c906108c | 2294 | sclass == C_HIDEXT ? mst_file_bss : mst_bss, |
4d1eb6b4 | 2295 | symbol.n_scnum, objfile); |
c906108c SS |
2296 | break; |
2297 | } | |
2298 | break; | |
2299 | ||
2300 | default: | |
2301 | break; | |
2302 | } | |
2303 | } | |
2304 | break; | |
2305 | case C_FILE: | |
2306 | { | |
2307 | unsigned int symnum_before; | |
2308 | ||
2309 | symnum_before = ssymnum; | |
96baa820 | 2310 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
c906108c SS |
2311 | &ssymnum, objfile); |
2312 | ||
2313 | /* See if the last csect needs to be recorded. */ | |
2314 | ||
2315 | if (last_csect_name && !misc_func_recorded) | |
2316 | { | |
c906108c SS |
2317 | /* If no misc. function recorded in the last seen csect, enter |
2318 | it as a function. This will take care of functions like | |
2319 | strcmp() compiled by xlc. */ | |
2320 | ||
8dddcb8f | 2321 | record_minimal_symbol (reader, last_csect_name, last_csect_val, |
ec92004f JB |
2322 | mst_text, last_csect_sec, objfile); |
2323 | misc_func_recorded = 1; | |
c906108c SS |
2324 | } |
2325 | ||
2326 | if (pst) | |
2327 | { | |
7e9c0476 TT |
2328 | xcoff_end_psymtab (objfile, partial_symtabs, |
2329 | pst, psymtab_include_list, | |
5c80ed9d TT |
2330 | includes_used, symnum_before, |
2331 | dependency_list, dependencies_used, | |
2332 | textlow_not_set); | |
c906108c SS |
2333 | includes_used = 0; |
2334 | dependencies_used = 0; | |
2335 | } | |
2336 | first_fun_line_offset = 0; | |
2337 | ||
2338 | /* XCOFF, according to the AIX 3.2 documentation, puts the | |
2339 | filename in cs->c_name. But xlc 1.3.0.2 has decided to | |
2340 | do things the standard COFF way and put it in the auxent. | |
2341 | We use the auxent if the symbol is ".file" and an auxent | |
2342 | exists, otherwise use the symbol itself. */ | |
2343 | if (!strcmp (namestring, ".file") && symbol.n_numaux > 0) | |
2344 | { | |
96baa820 | 2345 | filestring = coff_getfilename (&main_aux[0], objfile); |
c906108c SS |
2346 | } |
2347 | else | |
2348 | filestring = namestring; | |
2349 | ||
7b249e47 | 2350 | pst = xcoff_start_psymtab (partial_symtabs, objfile, |
c906108c | 2351 | filestring, |
939652a5 | 2352 | symnum_before); |
c906108c SS |
2353 | last_csect_name = NULL; |
2354 | } | |
2355 | break; | |
2356 | ||
2357 | default: | |
2358 | { | |
b98664d3 | 2359 | complaint (_("Storage class %d not recognized during scan"), |
3e43a32a | 2360 | sclass); |
c906108c SS |
2361 | } |
2362 | /* FALLTHROUGH */ | |
2363 | ||
86a73007 | 2364 | case C_FCN: |
c906108c SS |
2365 | /* C_FCN is .bf and .ef symbols. I think it is sufficient |
2366 | to handle only the C_FUN and C_EXT. */ | |
c906108c SS |
2367 | |
2368 | case C_BSTAT: | |
2369 | case C_ESTAT: | |
2370 | case C_ARG: | |
2371 | case C_REGPARM: | |
2372 | case C_REG: | |
2373 | case C_TPDEF: | |
2374 | case C_STRTAG: | |
2375 | case C_UNTAG: | |
2376 | case C_ENTAG: | |
2377 | case C_LABEL: | |
2378 | case C_NULL: | |
2379 | ||
2380 | /* C_EINCL means we are switching back to the main file. But there | |
2381 | is no reason to care; the only thing we want to know about | |
2382 | includes is the names of all the included (.h) files. */ | |
2383 | case C_EINCL: | |
2384 | ||
2385 | case C_BLOCK: | |
2386 | ||
2387 | /* I don't think C_STAT is used in xcoff; C_HIDEXT appears to be | |
2388 | used instead. */ | |
2389 | case C_STAT: | |
2390 | ||
2391 | /* I don't think the name of the common block (as opposed to the | |
2392 | variables within it) is something which is user visible | |
2393 | currently. */ | |
2394 | case C_BCOMM: | |
2395 | case C_ECOMM: | |
2396 | ||
2397 | case C_PSYM: | |
2398 | case C_RPSYM: | |
2399 | ||
2400 | /* I think we can ignore C_LSYM; types on xcoff seem to use C_DECL | |
2401 | so C_LSYM would appear to be only for locals. */ | |
2402 | case C_LSYM: | |
2403 | ||
2404 | case C_AUTO: | |
2405 | case C_RSYM: | |
2406 | { | |
2407 | /* We probably could save a few instructions by assuming that | |
2408 | C_LSYM, C_PSYM, etc., never have auxents. */ | |
7a78ae4e | 2409 | int naux1 = symbol.n_numaux + 1; |
a109c7c1 | 2410 | |
c906108c | 2411 | ssymnum += naux1; |
7a78ae4e | 2412 | sraw_symbol += bfd_coff_symesz (abfd) * naux1; |
c906108c SS |
2413 | } |
2414 | break; | |
2415 | ||
2416 | case C_BINCL: | |
d5d0a62f | 2417 | { |
581e13c1 | 2418 | /* Mark down an include file in the current psymtab. */ |
d5d0a62f | 2419 | enum language tmp_language; |
a109c7c1 | 2420 | |
d5d0a62f EZ |
2421 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
2422 | &ssymnum, objfile); | |
2423 | ||
2424 | tmp_language = deduce_language_from_filename (namestring); | |
2425 | ||
2426 | /* Only change the psymtab's language if we've learned | |
2427 | something useful (eg. tmp_language is not language_unknown). | |
2428 | In addition, to match what start_subfile does, never change | |
2429 | from C++ to C. */ | |
2430 | if (tmp_language != language_unknown | |
2431 | && (tmp_language != language_c | |
2432 | || psymtab_language != language_cplus)) | |
2433 | psymtab_language = tmp_language; | |
2434 | ||
2435 | /* In C++, one may expect the same filename to come round many | |
2436 | times, when code is coming alternately from the main file | |
581e13c1 | 2437 | and from inline functions in other files. So I check to see |
d5d0a62f EZ |
2438 | if this is a file we've seen before -- either the main |
2439 | source file, or a previously included file. | |
2440 | ||
2441 | This seems to be a lot of time to be spending on N_SOL, but | |
2442 | things like "break c-exp.y:435" need to work (I | |
2443 | suppose the psymtab_include_list could be hashed or put | |
2444 | in a binary tree, if profiling shows this is a major hog). */ | |
7ecb6532 | 2445 | if (pst && strcmp (namestring, pst->filename) == 0) |
d5d0a62f | 2446 | continue; |
a109c7c1 | 2447 | |
d5d0a62f | 2448 | { |
aa1ee363 | 2449 | int i; |
a109c7c1 | 2450 | |
d5d0a62f | 2451 | for (i = 0; i < includes_used; i++) |
7ecb6532 | 2452 | if (strcmp (namestring, psymtab_include_list[i]) == 0) |
d5d0a62f EZ |
2453 | { |
2454 | i = -1; | |
2455 | break; | |
2456 | } | |
2457 | if (i == -1) | |
2458 | continue; | |
2459 | } | |
2460 | psymtab_include_list[includes_used++] = namestring; | |
2461 | if (includes_used >= includes_allocated) | |
2462 | { | |
0d5cff50 | 2463 | const char **orig = psymtab_include_list; |
c906108c | 2464 | |
0d5cff50 | 2465 | psymtab_include_list = (const char **) |
d5d0a62f | 2466 | alloca ((includes_allocated *= 2) * |
0d5cff50 | 2467 | sizeof (const char *)); |
4efb68b1 | 2468 | memcpy (psymtab_include_list, orig, |
0d5cff50 | 2469 | includes_used * sizeof (const char *)); |
d5d0a62f EZ |
2470 | } |
2471 | continue; | |
2472 | } | |
c906108c SS |
2473 | case C_FUN: |
2474 | /* The value of the C_FUN is not the address of the function (it | |
2475 | appears to be the address before linking), but as long as it | |
2476 | is smaller than the actual address, then find_pc_partial_function | |
2477 | will use the minimal symbols instead. I hope. */ | |
2478 | ||
2479 | case C_GSYM: | |
2480 | case C_ECOML: | |
2481 | case C_DECL: | |
2482 | case C_STSYM: | |
d5d0a62f | 2483 | { |
e28566f7 | 2484 | const char *p; |
a109c7c1 | 2485 | |
d5d0a62f EZ |
2486 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
2487 | &ssymnum, objfile); | |
2488 | ||
ed4b0e6a | 2489 | p = strchr (namestring, ':'); |
d5d0a62f EZ |
2490 | if (!p) |
2491 | continue; /* Not a debugging symbol. */ | |
2492 | ||
2493 | /* Main processing section for debugging symbols which | |
2494 | the initial read through the symbol tables needs to worry | |
2495 | about. If we reach this point, the symbol which we are | |
2496 | considering is definitely one we are interested in. | |
2497 | p must also contain the (valid) index into the namestring | |
2498 | which indicates the debugging type symbol. */ | |
2499 | ||
2500 | switch (p[1]) | |
2501 | { | |
2502 | case 'S': | |
932539d7 TT |
2503 | pst->add_psymbol (gdb::string_view (namestring, |
2504 | p - namestring), | |
2505 | true, VAR_DOMAIN, LOC_STATIC, | |
2506 | SECT_OFF_DATA (objfile), | |
2507 | psymbol_placement::STATIC, | |
1ee8702d | 2508 | unrelocated_addr (symbol.n_value), |
7b249e47 TT |
2509 | psymtab_language, |
2510 | partial_symtabs, objfile); | |
d5d0a62f EZ |
2511 | continue; |
2512 | ||
2513 | case 'G': | |
d5d0a62f | 2514 | /* The addresses in these entries are reported to be |
581e13c1 | 2515 | wrong. See the code that reads 'G's for symtabs. */ |
932539d7 TT |
2516 | pst->add_psymbol (gdb::string_view (namestring, |
2517 | p - namestring), | |
2518 | true, VAR_DOMAIN, LOC_STATIC, | |
2519 | SECT_OFF_DATA (objfile), | |
2520 | psymbol_placement::GLOBAL, | |
1ee8702d | 2521 | unrelocated_addr (symbol.n_value), |
7b249e47 TT |
2522 | psymtab_language, |
2523 | partial_symtabs, objfile); | |
d5d0a62f EZ |
2524 | continue; |
2525 | ||
2526 | case 'T': | |
2527 | /* When a 'T' entry is defining an anonymous enum, it | |
2528 | may have a name which is the empty string, or a | |
2529 | single space. Since they're not really defining a | |
2530 | symbol, those shouldn't go in the partial symbol | |
2531 | table. We do pick up the elements of such enums at | |
2532 | 'check_enum:', below. */ | |
2533 | if (p >= namestring + 2 | |
2534 | || (p == namestring + 1 | |
2535 | && namestring[0] != ' ')) | |
2536 | { | |
932539d7 TT |
2537 | pst->add_psymbol (gdb::string_view (namestring, |
2538 | p - namestring), | |
2539 | true, STRUCT_DOMAIN, LOC_TYPEDEF, -1, | |
2540 | psymbol_placement::STATIC, | |
1ee8702d TT |
2541 | unrelocated_addr (0), |
2542 | psymtab_language, | |
7b249e47 | 2543 | partial_symtabs, objfile); |
d5d0a62f EZ |
2544 | if (p[2] == 't') |
2545 | { | |
2546 | /* Also a typedef with the same name. */ | |
932539d7 TT |
2547 | pst->add_psymbol (gdb::string_view (namestring, |
2548 | p - namestring), | |
2549 | true, VAR_DOMAIN, LOC_TYPEDEF, -1, | |
2550 | psymbol_placement::STATIC, | |
1ee8702d TT |
2551 | unrelocated_addr (0), |
2552 | psymtab_language, | |
7b249e47 | 2553 | partial_symtabs, objfile); |
d5d0a62f EZ |
2554 | p += 1; |
2555 | } | |
d5d0a62f EZ |
2556 | } |
2557 | goto check_enum; | |
2558 | ||
2559 | case 't': | |
581e13c1 | 2560 | if (p != namestring) /* a name is there, not just :T... */ |
d5d0a62f | 2561 | { |
932539d7 TT |
2562 | pst->add_psymbol (gdb::string_view (namestring, |
2563 | p - namestring), | |
2564 | true, VAR_DOMAIN, LOC_TYPEDEF, -1, | |
2565 | psymbol_placement::STATIC, | |
1ee8702d TT |
2566 | unrelocated_addr (0), |
2567 | psymtab_language, | |
7b249e47 | 2568 | partial_symtabs, objfile); |
d5d0a62f EZ |
2569 | } |
2570 | check_enum: | |
2571 | /* If this is an enumerated type, we need to | |
2572 | add all the enum constants to the partial symbol | |
2573 | table. This does not cover enums without names, e.g. | |
2574 | "enum {a, b} c;" in C, but fortunately those are | |
2575 | rare. There is no way for GDB to find those from the | |
2576 | enum type without spending too much time on it. Thus | |
2577 | to solve this problem, the compiler needs to put out the | |
2578 | enum in a nameless type. GCC2 does this. */ | |
2579 | ||
2580 | /* We are looking for something of the form | |
2581 | <name> ":" ("t" | "T") [<number> "="] "e" | |
2582 | {<constant> ":" <value> ","} ";". */ | |
2583 | ||
2584 | /* Skip over the colon and the 't' or 'T'. */ | |
2585 | p += 2; | |
2586 | /* This type may be given a number. Also, numbers can come | |
2587 | in pairs like (0,26). Skip over it. */ | |
2588 | while ((*p >= '0' && *p <= '9') | |
2589 | || *p == '(' || *p == ',' || *p == ')' | |
2590 | || *p == '=') | |
2591 | p++; | |
2592 | ||
2593 | if (*p++ == 'e') | |
2594 | { | |
3e43a32a MS |
2595 | /* The aix4 compiler emits extra crud before the |
2596 | members. */ | |
d5d0a62f EZ |
2597 | if (*p == '-') |
2598 | { | |
2599 | /* Skip over the type (?). */ | |
2600 | while (*p != ':') | |
2601 | p++; | |
2602 | ||
2603 | /* Skip over the colon. */ | |
2604 | p++; | |
2605 | } | |
2606 | ||
2607 | /* We have found an enumerated type. */ | |
2608 | /* According to comments in read_enum_type | |
2609 | a comma could end it instead of a semicolon. | |
2610 | I don't know where that happens. | |
2611 | Accept either. */ | |
2612 | while (*p && *p != ';' && *p != ',') | |
2613 | { | |
e28566f7 | 2614 | const char *q; |
d5d0a62f EZ |
2615 | |
2616 | /* Check for and handle cretinous dbx symbol name | |
2617 | continuation! */ | |
2618 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) | |
2619 | p = next_symbol_text (objfile); | |
2620 | ||
2621 | /* Point to the character after the name | |
2622 | of the enum constant. */ | |
2623 | for (q = p; *q && *q != ':'; q++) | |
2624 | ; | |
2625 | /* Note that the value doesn't matter for | |
2626 | enum constants in psymtabs, just in symtabs. */ | |
932539d7 TT |
2627 | pst->add_psymbol (gdb::string_view (p, q - p), true, |
2628 | VAR_DOMAIN, LOC_CONST, -1, | |
2629 | psymbol_placement::STATIC, | |
1ee8702d TT |
2630 | unrelocated_addr (0), |
2631 | psymtab_language, | |
7b249e47 | 2632 | partial_symtabs, objfile); |
d5d0a62f EZ |
2633 | /* Point past the name. */ |
2634 | p = q; | |
2635 | /* Skip over the value. */ | |
2636 | while (*p && *p != ',') | |
2637 | p++; | |
2638 | /* Advance past the comma. */ | |
2639 | if (*p) | |
2640 | p++; | |
2641 | } | |
2642 | } | |
2643 | continue; | |
2644 | ||
2645 | case 'c': | |
2646 | /* Constant, e.g. from "const" in Pascal. */ | |
932539d7 TT |
2647 | pst->add_psymbol (gdb::string_view (namestring, |
2648 | p - namestring), | |
2649 | true, VAR_DOMAIN, LOC_CONST, -1, | |
2650 | psymbol_placement::STATIC, | |
1ee8702d TT |
2651 | unrelocated_addr (0), |
2652 | psymtab_language, | |
7b249e47 | 2653 | partial_symtabs, objfile); |
d5d0a62f EZ |
2654 | continue; |
2655 | ||
2656 | case 'f': | |
2657 | if (! pst) | |
2658 | { | |
9c6c4471 AB |
2659 | std::string name (namestring, (p - namestring)); |
2660 | function_outside_compilation_unit_complaint (name.c_str ()); | |
d5d0a62f | 2661 | } |
932539d7 TT |
2662 | pst->add_psymbol (gdb::string_view (namestring, |
2663 | p - namestring), | |
2664 | true, VAR_DOMAIN, LOC_BLOCK, | |
2665 | SECT_OFF_TEXT (objfile), | |
2666 | psymbol_placement::STATIC, | |
1ee8702d | 2667 | unrelocated_addr (symbol.n_value), |
7b249e47 TT |
2668 | psymtab_language, |
2669 | partial_symtabs, objfile); | |
d5d0a62f EZ |
2670 | continue; |
2671 | ||
2672 | /* Global functions were ignored here, but now they | |
2673 | are put into the global psymtab like one would expect. | |
2674 | They're also in the minimal symbol table. */ | |
2675 | case 'F': | |
2676 | if (! pst) | |
2677 | { | |
9c6c4471 AB |
2678 | std::string name (namestring, (p - namestring)); |
2679 | function_outside_compilation_unit_complaint (name.c_str ()); | |
d5d0a62f | 2680 | } |
9f1d5432 PH |
2681 | |
2682 | /* We need only the minimal symbols for these | |
581e13c1 | 2683 | loader-generated definitions. Keeping the global |
9f1d5432 | 2684 | symbols leads to "in psymbols but not in symbols" |
581e13c1 | 2685 | errors. */ |
61012eef | 2686 | if (startswith (namestring, "@FIX")) |
9f1d5432 PH |
2687 | continue; |
2688 | ||
932539d7 TT |
2689 | pst->add_psymbol (gdb::string_view (namestring, |
2690 | p - namestring), | |
2691 | true, VAR_DOMAIN, LOC_BLOCK, | |
2692 | SECT_OFF_TEXT (objfile), | |
2693 | psymbol_placement::GLOBAL, | |
1ee8702d | 2694 | unrelocated_addr (symbol.n_value), |
7b249e47 TT |
2695 | psymtab_language, |
2696 | partial_symtabs, objfile); | |
d5d0a62f EZ |
2697 | continue; |
2698 | ||
2699 | /* Two things show up here (hopefully); static symbols of | |
2700 | local scope (static used inside braces) or extensions | |
2701 | of structure symbols. We can ignore both. */ | |
2702 | case 'V': | |
2703 | case '(': | |
2704 | case '0': | |
2705 | case '1': | |
2706 | case '2': | |
2707 | case '3': | |
2708 | case '4': | |
2709 | case '5': | |
2710 | case '6': | |
2711 | case '7': | |
2712 | case '8': | |
2713 | case '9': | |
2714 | case '-': | |
3e43a32a MS |
2715 | case '#': /* For symbol identification (used in |
2716 | live ranges). */ | |
d5d0a62f EZ |
2717 | continue; |
2718 | ||
2719 | case ':': | |
2720 | /* It is a C++ nested symbol. We don't need to record it | |
2721 | (I don't think); if we try to look up foo::bar::baz, | |
2722 | then symbols for the symtab containing foo should get | |
2723 | read in, I think. */ | |
2724 | /* Someone says sun cc puts out symbols like | |
2725 | /foo/baz/maclib::/usr/local/bin/maclib, | |
2726 | which would get here with a symbol type of ':'. */ | |
2727 | continue; | |
2728 | ||
2729 | default: | |
3e43a32a MS |
2730 | /* Unexpected symbol descriptor. The second and |
2731 | subsequent stabs of a continued stab can show up | |
2732 | here. The question is whether they ever can mimic | |
2733 | a normal stab--it would be nice if not, since we | |
2734 | certainly don't want to spend the time searching to | |
2735 | the end of every string looking for a | |
2736 | backslash. */ | |
d5d0a62f | 2737 | |
b98664d3 | 2738 | complaint (_("unknown symbol descriptor `%c'"), p[1]); |
d5d0a62f EZ |
2739 | |
2740 | /* Ignore it; perhaps it is an extension that we don't | |
2741 | know about. */ | |
2742 | continue; | |
2743 | } | |
2744 | } | |
c906108c SS |
2745 | } |
2746 | } | |
2747 | ||
2748 | if (pst) | |
2749 | { | |
7e9c0476 TT |
2750 | xcoff_end_psymtab (objfile, partial_symtabs, |
2751 | pst, psymtab_include_list, includes_used, | |
c906108c SS |
2752 | ssymnum, dependency_list, |
2753 | dependencies_used, textlow_not_set); | |
2754 | } | |
2755 | ||
581e13c1 MS |
2756 | /* Record the toc offset value of this symbol table into objfile |
2757 | structure. If no XMC_TC0 is found, toc_offset should be zero. | |
2758 | Another place to obtain this information would be file auxiliary | |
2759 | header. */ | |
c906108c | 2760 | |
b8b98ad1 | 2761 | XCOFF_DATA (objfile)->toc_offset = toc_offset; |
c906108c SS |
2762 | } |
2763 | ||
2764 | /* Return the toc offset value for a given objfile. */ | |
2765 | ||
2766 | CORE_ADDR | |
63807e1d | 2767 | xcoff_get_toc_offset (struct objfile *objfile) |
c906108c SS |
2768 | { |
2769 | if (objfile) | |
b8b98ad1 | 2770 | return XCOFF_DATA (objfile)->toc_offset; |
c906108c SS |
2771 | return 0; |
2772 | } | |
2773 | ||
2774 | /* Scan and build partial symbols for a symbol file. | |
2775 | We have been initialized by a call to dbx_symfile_init, which | |
2776 | put all the relevant info into a "struct dbx_symfile_info", | |
2777 | hung off the objfile structure. | |
2778 | ||
2779 | SECTION_OFFSETS contains offsets relative to which the symbols in the | |
581e13c1 MS |
2780 | various sections are (depending where the sections were actually |
2781 | loaded). */ | |
c906108c SS |
2782 | |
2783 | static void | |
b15cc25c | 2784 | xcoff_initial_scan (struct objfile *objfile, symfile_add_flags symfile_flags) |
c906108c SS |
2785 | { |
2786 | bfd *abfd; | |
2787 | int val; | |
c5aa993b JM |
2788 | int num_symbols; /* # of symbols */ |
2789 | file_ptr symtab_offset; /* symbol table and */ | |
2790 | file_ptr stringtab_offset; /* string table file offsets */ | |
02dc647e | 2791 | struct xcoff_symfile_info *info; |
4262abfb | 2792 | const char *name; |
c906108c SS |
2793 | unsigned int size; |
2794 | ||
b8b98ad1 | 2795 | info = XCOFF_DATA (objfile); |
98badbfd | 2796 | symfile_bfd = abfd = objfile->obfd.get (); |
4262abfb | 2797 | name = objfile_name (objfile); |
c906108c SS |
2798 | |
2799 | num_symbols = bfd_get_symcount (abfd); /* # of symbols */ | |
2800 | symtab_offset = obj_sym_filepos (abfd); /* symbol table file offset */ | |
2801 | stringtab_offset = symtab_offset + | |
c5aa993b | 2802 | num_symbols * coff_data (abfd)->local_symesz; |
c906108c SS |
2803 | |
2804 | info->min_lineno_offset = 0; | |
2805 | info->max_lineno_offset = 0; | |
2806 | bfd_map_over_sections (abfd, find_linenos, info); | |
2807 | ||
2808 | if (num_symbols > 0) | |
2809 | { | |
2810 | /* Read the string table. */ | |
2811 | init_stringtab (abfd, stringtab_offset, objfile); | |
2812 | ||
97cbe998 SDJ |
2813 | /* Read the .debug section, if present and if we're not ignoring |
2814 | it. */ | |
2815 | if (!(objfile->flags & OBJF_READNEVER)) | |
2816 | { | |
2817 | struct bfd_section *secp; | |
2818 | bfd_size_type length; | |
2819 | bfd_byte *debugsec = NULL; | |
c906108c | 2820 | |
97cbe998 SDJ |
2821 | secp = bfd_get_section_by_name (abfd, ".debug"); |
2822 | if (secp) | |
2823 | { | |
fd361982 | 2824 | length = bfd_section_size (secp); |
97cbe998 SDJ |
2825 | if (length) |
2826 | { | |
2827 | debugsec | |
2828 | = (bfd_byte *) obstack_alloc (&objfile->objfile_obstack, | |
2829 | length); | |
c906108c | 2830 | |
97cbe998 SDJ |
2831 | if (!bfd_get_full_section_contents (abfd, secp, &debugsec)) |
2832 | { | |
2833 | error (_("Error reading .debug section of `%s': %s"), | |
2834 | name, bfd_errmsg (bfd_get_error ())); | |
2835 | } | |
2836 | } | |
2837 | } | |
2838 | info->debugsec = (char *) debugsec; | |
2839 | } | |
c906108c SS |
2840 | } |
2841 | ||
2842 | /* Read the symbols. We keep them in core because we will want to | |
2843 | access them randomly in read_symbol*. */ | |
2844 | val = bfd_seek (abfd, symtab_offset, SEEK_SET); | |
2845 | if (val < 0) | |
8a3fe4f8 | 2846 | error (_("Error reading symbols from %s: %s"), |
c906108c SS |
2847 | name, bfd_errmsg (bfd_get_error ())); |
2848 | size = coff_data (abfd)->local_symesz * num_symbols; | |
224c3ddb | 2849 | info->symtbl = (char *) obstack_alloc (&objfile->objfile_obstack, size); |
b8b98ad1 TT |
2850 | info->symtbl_num_syms = num_symbols; |
2851 | ||
226f9f4f | 2852 | val = bfd_read (info->symtbl, size, abfd); |
c906108c | 2853 | if (val != size) |
e2e0b3e5 | 2854 | perror_with_name (_("reading symbol table")); |
c906108c | 2855 | |
33c7c59d | 2856 | scoped_free_pendings free_pending; |
d25e8719 | 2857 | minimal_symbol_reader reader (objfile); |
c906108c SS |
2858 | |
2859 | /* Now that the symbol table data of the executable file are all in core, | |
2860 | process them and define symbols accordingly. */ | |
2861 | ||
eb36a3eb TT |
2862 | psymbol_functions *psf = new psymbol_functions (); |
2863 | psymtab_storage *partial_symtabs = psf->get_partial_symtabs ().get (); | |
2864 | objfile->qf.emplace_front (psf); | |
7e9c0476 | 2865 | scan_xcoff_symtab (reader, partial_symtabs, objfile); |
c906108c SS |
2866 | |
2867 | /* Install any minimal symbols that have been collected as the current | |
581e13c1 | 2868 | minimal symbols for this objfile. */ |
c906108c | 2869 | |
d25e8719 | 2870 | reader.install (); |
c906108c | 2871 | |
316a8b21 TG |
2872 | /* DWARF2 sections. */ |
2873 | ||
2874 | if (dwarf2_has_info (objfile, &dwarf2_xcoff_names)) | |
31de881f | 2875 | dwarf2_initialize_objfile (objfile); |
c906108c SS |
2876 | } |
2877 | \f | |
d4f3574e | 2878 | static void |
3e43a32a | 2879 | xcoff_symfile_offsets (struct objfile *objfile, |
37e136b1 | 2880 | const section_addr_info &addrs) |
c906108c | 2881 | { |
4d1eb6b4 | 2882 | const char *first_section_name; |
c906108c | 2883 | |
4d1eb6b4 | 2884 | default_symfile_offsets (objfile, addrs); |
c906108c | 2885 | |
4d1eb6b4 JB |
2886 | /* Oneof the weird side-effects of default_symfile_offsets is that |
2887 | it sometimes sets some section indices to zero for sections that, | |
2888 | in fact do not exist. See the body of default_symfile_offsets | |
2889 | for more info on when that happens. Undo that, as this then allows | |
2890 | us to test whether the associated section exists or not, and then | |
2891 | access it quickly (without searching it again). */ | |
b8fbeb18 | 2892 | |
6a053cb1 | 2893 | if (objfile->section_offsets.empty ()) |
4d1eb6b4 | 2894 | return; /* Is that even possible? Better safe than sorry. */ |
b8fbeb18 | 2895 | |
9ed8433a TT |
2896 | first_section_name |
2897 | = bfd_section_name (objfile->sections_start[0].the_bfd_section); | |
b8fbeb18 | 2898 | |
4d1eb6b4 JB |
2899 | if (objfile->sect_index_text == 0 |
2900 | && strcmp (first_section_name, ".text") != 0) | |
2901 | objfile->sect_index_text = -1; | |
b8fbeb18 | 2902 | |
4d1eb6b4 JB |
2903 | if (objfile->sect_index_data == 0 |
2904 | && strcmp (first_section_name, ".data") != 0) | |
2905 | objfile->sect_index_data = -1; | |
2906 | ||
2907 | if (objfile->sect_index_bss == 0 | |
2908 | && strcmp (first_section_name, ".bss") != 0) | |
2909 | objfile->sect_index_bss = -1; | |
2910 | ||
2911 | if (objfile->sect_index_rodata == 0 | |
2912 | && strcmp (first_section_name, ".rodata") != 0) | |
2913 | objfile->sect_index_rodata = -1; | |
c906108c SS |
2914 | } |
2915 | ||
2916 | /* Register our ability to parse symbols for xcoff BFD files. */ | |
2917 | ||
00b5771c | 2918 | static const struct sym_fns xcoff_sym_fns = |
c906108c SS |
2919 | { |
2920 | ||
7a78ae4e | 2921 | /* It is possible that coff and xcoff should be merged as |
c906108c SS |
2922 | they do have fundamental similarities (for example, the extra storage |
2923 | classes used for stabs could presumably be recognized in any COFF file). | |
2924 | However, in addition to obvious things like all the csect hair, there are | |
2925 | some subtler differences between xcoffread.c and coffread.c, notably | |
2926 | the fact that coffread.c has no need to read in all the symbols, but | |
2927 | xcoffread.c reads all the symbols and does in fact randomly access them | |
2928 | (in C_BSTAT and line number processing). */ | |
2929 | ||
3e43a32a MS |
2930 | xcoff_new_init, /* init anything gbl to entire symtab */ |
2931 | xcoff_symfile_init, /* read initial info, setup for sym_read() */ | |
2932 | xcoff_initial_scan, /* read a symbol file into symtab */ | |
2933 | xcoff_symfile_finish, /* finished with file, cleanup */ | |
2934 | xcoff_symfile_offsets, /* xlate offsets ext->int form */ | |
2935 | default_symfile_segments, /* Get segment information from a file. */ | |
2936 | aix_process_linenos, | |
2937 | default_symfile_relocate, /* Relocate a debug section. */ | |
55aa24fb | 2938 | NULL, /* sym_probe_fns */ |
c906108c SS |
2939 | }; |
2940 | ||
d5367fe1 JB |
2941 | /* Same as xcoff_get_n_import_files, but for core files. */ |
2942 | ||
2943 | static int | |
2944 | xcoff_get_core_n_import_files (bfd *abfd) | |
2945 | { | |
2946 | asection *sect = bfd_get_section_by_name (abfd, ".ldinfo"); | |
2947 | gdb_byte buf[4]; | |
2948 | file_ptr offset = 0; | |
2949 | int n_entries = 0; | |
2950 | ||
2951 | if (sect == NULL) | |
2952 | return -1; /* Not a core file. */ | |
2953 | ||
fd361982 | 2954 | for (offset = 0; offset < bfd_section_size (sect);) |
d5367fe1 JB |
2955 | { |
2956 | int next; | |
2957 | ||
2958 | n_entries++; | |
2959 | ||
2960 | if (!bfd_get_section_contents (abfd, sect, buf, offset, 4)) | |
2961 | return -1; | |
2962 | next = bfd_get_32 (abfd, buf); | |
2963 | if (next == 0) | |
2964 | break; /* This is the last entry. */ | |
2965 | offset += next; | |
2966 | } | |
2967 | ||
2968 | /* Return the number of entries, excluding the first one, which is | |
2969 | the path to the executable that produced this core file. */ | |
2970 | return n_entries - 1; | |
2971 | } | |
2972 | ||
2973 | /* Return the number of import files (shared libraries) that the given | |
2974 | BFD depends on. Return -1 if this number could not be computed. */ | |
2975 | ||
2976 | int | |
2977 | xcoff_get_n_import_files (bfd *abfd) | |
2978 | { | |
2979 | asection *sect = bfd_get_section_by_name (abfd, ".loader"); | |
2980 | gdb_byte buf[4]; | |
2981 | int l_nimpid; | |
2982 | ||
2983 | /* If the ".loader" section does not exist, the objfile is probably | |
2984 | not an executable. Might be a core file... */ | |
2985 | if (sect == NULL) | |
2986 | return xcoff_get_core_n_import_files (abfd); | |
2987 | ||
2988 | /* The number of entries in the Import Files Table is stored in | |
2989 | field l_nimpid. This field is always at offset 16, and is | |
2990 | always 4 bytes long. Read those 4 bytes. */ | |
2991 | ||
2992 | if (!bfd_get_section_contents (abfd, sect, buf, 16, 4)) | |
2993 | return -1; | |
2994 | l_nimpid = bfd_get_32 (abfd, buf); | |
2995 | ||
2996 | /* By convention, the first entry is the default LIBPATH value | |
2997 | to be used by the system loader, so it does not count towards | |
2998 | the number of import files. */ | |
2999 | return l_nimpid - 1; | |
3000 | } | |
3001 | ||
6c265988 | 3002 | void _initialize_xcoffread (); |
c906108c | 3003 | void |
6c265988 | 3004 | _initialize_xcoffread () |
c906108c | 3005 | { |
c256e171 | 3006 | add_symtab_fns (bfd_target_xcoff_flavour, &xcoff_sym_fns); |
c906108c | 3007 | } |