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Commit | Line | Data |
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af4ae74b | 1 | /* Collect static initialization info into data structures that can be |
2 | traversed by C++ initialization and finalization routines. | |
ca628a86 | 3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
2b4876d2 | 4 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
832f2315 | 5 | Contributed by Chris Smith (csmith@convex.com). |
809e4ea4 | 6 | Heavily modified by Michael Meissner (meissner@cygnus.com), |
832f2315 | 7 | Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com). |
8 | ||
f12b58b3 | 9 | This file is part of GCC. |
832f2315 | 10 | |
f12b58b3 | 11 | GCC is free software; you can redistribute it and/or modify it under |
12 | the terms of the GNU General Public License as published by the Free | |
13 | Software Foundation; either version 2, or (at your option) any later | |
14 | version. | |
832f2315 | 15 | |
f12b58b3 | 16 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
17 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
18 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | for more details. | |
832f2315 | 20 | |
21 | You should have received a copy of the GNU General Public License | |
f12b58b3 | 22 | along with GCC; see the file COPYING. If not, write to the Free |
23 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
24 | 02111-1307, USA. */ | |
832f2315 | 25 | |
26 | ||
a92771b8 | 27 | /* Build tables of static constructors and destructors and run ld. */ |
832f2315 | 28 | |
de61b97c | 29 | #include "config.h" |
405711de | 30 | #include "system.h" |
805e22b2 | 31 | #include "coretypes.h" |
32 | #include "tm.h" | |
832f2315 | 33 | #include <signal.h> |
6b917287 | 34 | #if ! defined( SIGCHLD ) && defined( SIGCLD ) |
35 | # define SIGCHLD SIGCLD | |
36 | #endif | |
832f2315 | 37 | |
2c0e001b | 38 | #ifdef vfork /* Autoconf may define this to fork for us. */ |
020ecb1b | 39 | # define VFORK_STRING "fork" |
40 | #else | |
41 | # define VFORK_STRING "vfork" | |
42 | #endif | |
43 | #ifdef HAVE_VFORK_H | |
44 | #include <vfork.h> | |
45 | #endif | |
46 | #ifdef VMS | |
47 | #define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \ | |
48 | lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1) | |
49 | #endif /* VMS */ | |
50 | ||
397f1574 | 51 | #ifndef LIBRARY_PATH_ENV |
52 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
53 | #endif | |
54 | ||
de61b97c | 55 | #define COLLECT |
56 | ||
1ae13971 | 57 | #include "collect2.h" |
de61b97c | 58 | #include "demangle.h" |
59 | #include "obstack.h" | |
be2828ce | 60 | #include "intl.h" |
56fc5f02 | 61 | #include "version.h" |
22f0924c | 62 | \f |
63 | /* On certain systems, we have code that works by scanning the object file | |
64 | directly. But this code uses system-specific header files and library | |
e533c428 | 65 | functions, so turn it off in a cross-compiler. Likewise, the names of |
d1058090 | 66 | the utilities are not correct for a cross-compiler; we have to hope that |
e533c428 | 67 | cross-versions are in the proper directories. */ |
22f0924c | 68 | |
69 | #ifdef CROSS_COMPILE | |
70 | #undef OBJECT_FORMAT_COFF | |
e533c428 | 71 | #undef MD_EXEC_PREFIX |
72 | #undef REAL_LD_FILE_NAME | |
73 | #undef REAL_NM_FILE_NAME | |
74 | #undef REAL_STRIP_FILE_NAME | |
22f0924c | 75 | #endif |
76 | ||
d1058090 | 77 | /* If we cannot use a special method, use the ordinary one: |
22f0924c | 78 | run nm to find what symbols are present. |
79 | In a cross-compiler, this means you need a cross nm, | |
d1058090 | 80 | but that is not quite as unpleasant as special headers. */ |
22f0924c | 81 | |
4bfa9136 | 82 | #if !defined (OBJECT_FORMAT_COFF) |
22f0924c | 83 | #define OBJECT_FORMAT_NONE |
84 | #endif | |
85 | ||
86 | #ifdef OBJECT_FORMAT_COFF | |
87 | ||
88 | #include <a.out.h> | |
89 | #include <ar.h> | |
90 | ||
91 | #ifdef UMAX | |
92 | #include <sgs.h> | |
93 | #endif | |
94 | ||
2dbf77ee | 95 | /* Many versions of ldfcn.h define these. */ |
96 | #ifdef FREAD | |
22f0924c | 97 | #undef FREAD |
98 | #undef FWRITE | |
99 | #endif | |
100 | ||
101 | #include <ldfcn.h> | |
102 | ||
f1ec03c4 | 103 | /* Some systems have an ISCOFF macro, but others do not. In some cases |
104 | the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines | |
89a1f620 | 105 | that either do not have an ISCOFF macro in /usr/include or for those |
f1ec03c4 | 106 | where it is wrong. */ |
107 | ||
afc39df4 | 108 | #ifndef MY_ISCOFF |
109 | #define MY_ISCOFF(X) ISCOFF (X) | |
110 | #endif | |
111 | ||
22f0924c | 112 | #endif /* OBJECT_FORMAT_COFF */ |
113 | ||
22f0924c | 114 | #ifdef OBJECT_FORMAT_NONE |
115 | ||
832f2315 | 116 | /* Default flags to pass to nm. */ |
117 | #ifndef NM_FLAGS | |
9bc65db1 | 118 | #define NM_FLAGS "-n" |
832f2315 | 119 | #endif |
120 | ||
22f0924c | 121 | #endif /* OBJECT_FORMAT_NONE */ |
b0b9762f | 122 | |
123 | /* Some systems use __main in a way incompatible with its use in gcc, in these | |
124 | cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to | |
7cdd3716 | 125 | give the same symbol without quotes for an alternative entry point. */ |
b0b9762f | 126 | #ifndef NAME__MAIN |
127 | #define NAME__MAIN "__main" | |
b0b9762f | 128 | #endif |
129 | ||
69988048 | 130 | /* This must match tree.h. */ |
131 | #define DEFAULT_INIT_PRIORITY 65535 | |
132 | ||
2f9e77d1 | 133 | #ifndef COLLECT_SHARED_INIT_FUNC |
134 | #define COLLECT_SHARED_INIT_FUNC(STREAM, FUNC) \ | |
135 | fprintf ((STREAM), "void _GLOBAL__DI() {\n\t%s();\n}\n", (FUNC)) | |
136 | #endif | |
137 | #ifndef COLLECT_SHARED_FINI_FUNC | |
138 | #define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \ | |
139 | fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC)) | |
140 | #endif | |
141 | ||
5219c73b | 142 | #ifdef LDD_SUFFIX |
b7c87ff2 | 143 | #define SCAN_LIBRARIES |
144 | #endif | |
d2f0b724 | 145 | |
146 | #ifdef USE_COLLECT2 | |
147 | int do_collecting = 1; | |
148 | #else | |
149 | int do_collecting = 0; | |
150 | #endif | |
402eb8ac | 151 | |
152 | /* Nonzero if we should suppress the automatic demangling of identifiers | |
153 | in linker error messages. Set from COLLECT_NO_DEMANGLE. */ | |
154 | int no_demangle; | |
832f2315 | 155 | \f |
a92771b8 | 156 | /* Linked lists of constructor and destructor names. */ |
832f2315 | 157 | |
89a1f620 | 158 | struct id |
832f2315 | 159 | { |
160 | struct id *next; | |
161 | int sequence; | |
162 | char name[1]; | |
163 | }; | |
164 | ||
165 | struct head | |
166 | { | |
167 | struct id *first; | |
168 | struct id *last; | |
169 | int number; | |
170 | }; | |
171 | ||
172 | /* Enumeration giving which pass this is for scanning the program file. */ | |
173 | ||
174 | enum pass { | |
175 | PASS_FIRST, /* without constructors */ | |
a9b00323 | 176 | PASS_OBJ, /* individual objects */ |
b7c87ff2 | 177 | PASS_LIB, /* looking for shared libraries */ |
832f2315 | 178 | PASS_SECOND /* with constructors linked in */ |
179 | }; | |
180 | ||
d2f0b724 | 181 | int vflag; /* true if -v */ |
832f2315 | 182 | static int rflag; /* true if -r */ |
8989da5d | 183 | static int strip_flag; /* true if -s */ |
5814fc8c | 184 | static const char *demangle_flag; |
d1058090 | 185 | #ifdef COLLECT_EXPORT_LIST |
186 | static int export_flag; /* true if -bE */ | |
9ae139a2 | 187 | static int aix64_flag; /* true if -b64 */ |
07090bac | 188 | static int aixrtl_flag; /* true if -brtl */ |
d1058090 | 189 | #endif |
832f2315 | 190 | |
d2f0b724 | 191 | int debug; /* true if -debug */ |
832f2315 | 192 | |
b7c87ff2 | 193 | static int shared_obj; /* true if -shared */ |
194 | ||
e504db4a | 195 | static const char *c_file; /* <xxx>.c for constructor/destructor list. */ |
196 | static const char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
d1058090 | 197 | #ifdef COLLECT_EXPORT_LIST |
e504db4a | 198 | static const char *export_file; /* <xxx>.x for AIX export list. */ |
d1058090 | 199 | #endif |
e504db4a | 200 | const char *ldout; /* File for ld errors. */ |
201 | static const char *output_file; /* Output file for ld. */ | |
202 | static const char *nm_file_name; /* pathname of nm */ | |
579f88d2 | 203 | #ifdef LDD_SUFFIX |
e504db4a | 204 | static const char *ldd_file_name; /* pathname of ldd (or equivalent) */ |
579f88d2 | 205 | #endif |
e504db4a | 206 | static const char *strip_file_name; /* pathname of strip */ |
207 | const char *c_file_name; /* pathname of gcc */ | |
a9b00323 | 208 | static char *initname, *fininame; /* names of init and fini funcs */ |
832f2315 | 209 | |
210 | static struct head constructors; /* list of constructors found */ | |
211 | static struct head destructors; /* list of destructors found */ | |
d1058090 | 212 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 213 | static struct head exports; /* list of exported symbols */ |
d1058090 | 214 | #endif |
d757b8c9 | 215 | static struct head frame_tables; /* list of frame unwind info tables */ |
832f2315 | 216 | |
d2f0b724 | 217 | struct obstack temporary_obstack; |
d2f0b724 | 218 | char * temporary_firstobj; |
219 | ||
71a0b5ce | 220 | /* Holds the return value of pexecute and fork. */ |
221 | int pid; | |
3b774709 | 222 | |
3d082955 | 223 | /* Structure to hold all the directories in which to search for files to |
224 | execute. */ | |
225 | ||
226 | struct prefix_list | |
227 | { | |
e504db4a | 228 | const char *prefix; /* String to prepend to the path. */ |
a92771b8 | 229 | struct prefix_list *next; /* Next in linked list. */ |
3d082955 | 230 | }; |
231 | ||
232 | struct path_prefix | |
233 | { | |
234 | struct prefix_list *plist; /* List of prefixes to try */ | |
235 | int max_len; /* Max length of a prefix in PLIST */ | |
e504db4a | 236 | const char *name; /* Name of this list (used in config stuff) */ |
3d082955 | 237 | }; |
238 | ||
d1058090 | 239 | #ifdef COLLECT_EXPORT_LIST |
2c0e001b | 240 | /* Lists to keep libraries to be scanned for global constructors/destructors. */ |
d1058090 | 241 | static struct head libs; /* list of libraries */ |
242 | static struct path_prefix cmdline_lib_dirs; /* directories specified with -L */ | |
243 | static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */ | |
244 | static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs, | |
245 | &libpath_lib_dirs, NULL}; | |
d1058090 | 246 | #endif |
247 | ||
89a1f620 | 248 | static void handler (int); |
249 | static int is_ctor_dtor (const char *); | |
250 | static char *find_a_file (struct path_prefix *, const char *); | |
251 | static void add_prefix (struct path_prefix *, const char *); | |
252 | static void prefix_from_env (const char *, struct path_prefix *); | |
253 | static void prefix_from_string (const char *, struct path_prefix *); | |
254 | static void do_wait (const char *); | |
255 | static void fork_execute (const char *, char **); | |
256 | static void maybe_unlink (const char *); | |
257 | static void add_to_list (struct head *, const char *); | |
258 | static int extract_init_priority (const char *); | |
259 | static void sort_ids (struct head *); | |
260 | static void write_list (FILE *, const char *, struct id *); | |
0e93a6ac | 261 | #ifdef COLLECT_EXPORT_LIST |
89a1f620 | 262 | static void dump_list (FILE *, const char *, struct id *); |
0e93a6ac | 263 | #endif |
264 | #if 0 | |
89a1f620 | 265 | static void dump_prefix_list (FILE *, const char *, struct prefix_list *); |
e504db4a | 266 | #endif |
89a1f620 | 267 | static void write_list_with_asm (FILE *, const char *, struct id *); |
268 | static void write_c_file (FILE *, const char *); | |
269 | static void write_c_file_stat (FILE *, const char *); | |
e504db4a | 270 | #ifndef LD_INIT_SWITCH |
89a1f620 | 271 | static void write_c_file_glob (FILE *, const char *); |
0e93a6ac | 272 | #endif |
89a1f620 | 273 | static void scan_prog_file (const char *, enum pass); |
99c14947 | 274 | #ifdef SCAN_LIBRARIES |
89a1f620 | 275 | static void scan_libraries (const char *); |
99c14947 | 276 | #endif |
8ae48c7c | 277 | #if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES |
89a1f620 | 278 | static int is_in_args (const char *, const char **, const char **); |
8ae48c7c | 279 | #endif |
d1058090 | 280 | #ifdef COLLECT_EXPORT_LIST |
0c87a39e | 281 | #if 0 |
89a1f620 | 282 | static int is_in_list (const char *, struct id *); |
0c87a39e | 283 | #endif |
89a1f620 | 284 | static void write_aix_file (FILE *, struct id *); |
285 | static char *resolve_lib_name (const char *); | |
d1058090 | 286 | #endif |
89a1f620 | 287 | static char *extract_string (const char **); |
832f2315 | 288 | \f |
758cb8dd | 289 | #ifndef HAVE_DUP2 |
758cb8dd | 290 | static int |
89a1f620 | 291 | dup2 (int oldfd, int newfd) |
f3485160 | 292 | { |
293 | int fdtmp[256]; | |
294 | int fdx = 0; | |
295 | int fd; | |
89a1f620 | 296 | |
f3485160 | 297 | if (oldfd == newfd) |
e1d32dbe | 298 | return oldfd; |
f3485160 | 299 | close (newfd); |
e1d32dbe | 300 | while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
f3485160 | 301 | fdtmp[fdx++] = fd; |
302 | while (fdx > 0) | |
303 | close (fdtmp[--fdx]); | |
3d082955 | 304 | |
e1d32dbe | 305 | return fd; |
f3485160 | 306 | } |
758cb8dd | 307 | #endif /* ! HAVE_DUP2 */ |
832f2315 | 308 | \f |
309 | /* Delete tempfiles and exit function. */ | |
310 | ||
d2f0b724 | 311 | void |
89a1f620 | 312 | collect_exit (int status) |
832f2315 | 313 | { |
22f0924c | 314 | if (c_file != 0 && c_file[0]) |
832f2315 | 315 | maybe_unlink (c_file); |
316 | ||
22f0924c | 317 | if (o_file != 0 && o_file[0]) |
832f2315 | 318 | maybe_unlink (o_file); |
319 | ||
d1058090 | 320 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 321 | if (export_file != 0 && export_file[0]) |
322 | maybe_unlink (export_file); | |
d1058090 | 323 | #endif |
324 | ||
d2f0b724 | 325 | if (ldout != 0 && ldout[0]) |
326 | { | |
327 | dump_file (ldout); | |
328 | maybe_unlink (ldout); | |
329 | } | |
330 | ||
131353cd | 331 | if (status != 0 && output_file != 0 && output_file[0]) |
332 | maybe_unlink (output_file); | |
333 | ||
832f2315 | 334 | exit (status); |
335 | } | |
336 | ||
337 | \f | |
be2828ce | 338 | /* Notify user of a non-error. */ |
339 | void | |
ee582a61 | 340 | notice (const char *msgid, ...) |
be2828ce | 341 | { |
ee582a61 | 342 | va_list ap; |
89a1f620 | 343 | |
ee582a61 | 344 | va_start (ap, msgid); |
be2828ce | 345 | vfprintf (stderr, _(msgid), ap); |
ee582a61 | 346 | va_end (ap); |
be2828ce | 347 | } |
348 | ||
a92771b8 | 349 | /* Die when sys call fails. */ |
832f2315 | 350 | |
d2f0b724 | 351 | void |
ee582a61 | 352 | fatal_perror (const char * msgid, ...) |
832f2315 | 353 | { |
832f2315 | 354 | int e = errno; |
ee582a61 | 355 | va_list ap; |
89a1f620 | 356 | |
ee582a61 | 357 | va_start (ap, msgid); |
5049b6d6 | 358 | fprintf (stderr, "collect2: "); |
be2828ce | 359 | vfprintf (stderr, _(msgid), ap); |
e504db4a | 360 | fprintf (stderr, ": %s\n", xstrerror (e)); |
ee582a61 | 361 | va_end (ap); |
274c11d8 | 362 | |
5fcf1827 | 363 | collect_exit (FATAL_EXIT_CODE); |
832f2315 | 364 | } |
365 | ||
a92771b8 | 366 | /* Just die. */ |
832f2315 | 367 | |
d2f0b724 | 368 | void |
ee582a61 | 369 | fatal (const char * msgid, ...) |
832f2315 | 370 | { |
ee582a61 | 371 | va_list ap; |
89a1f620 | 372 | |
ee582a61 | 373 | va_start (ap, msgid); |
5049b6d6 | 374 | fprintf (stderr, "collect2: "); |
be2828ce | 375 | vfprintf (stderr, _(msgid), ap); |
832f2315 | 376 | fprintf (stderr, "\n"); |
ee582a61 | 377 | va_end (ap); |
274c11d8 | 378 | |
5fcf1827 | 379 | collect_exit (FATAL_EXIT_CODE); |
832f2315 | 380 | } |
381 | ||
382 | /* Write error message. */ | |
383 | ||
d2f0b724 | 384 | void |
ee582a61 | 385 | error (const char * msgid, ...) |
832f2315 | 386 | { |
ee582a61 | 387 | va_list ap; |
89a1f620 | 388 | |
ee582a61 | 389 | va_start (ap, msgid); |
5049b6d6 | 390 | fprintf (stderr, "collect2: "); |
be2828ce | 391 | vfprintf (stderr, _(msgid), ap); |
832f2315 | 392 | fprintf (stderr, "\n"); |
ee582a61 | 393 | va_end(ap); |
832f2315 | 394 | } |
395 | ||
832f2315 | 396 | /* In case obstack is linked in, and abort is defined to fancy_abort, |
397 | provide a default entry. */ | |
398 | ||
399 | void | |
117115d0 | 400 | fancy_abort (const char *file, int line, const char *func) |
832f2315 | 401 | { |
117115d0 | 402 | fatal ("internal gcc abort in %s, at %s:%d", func, file, line); |
832f2315 | 403 | } |
832f2315 | 404 | \f |
405 | static void | |
89a1f620 | 406 | handler (int signo) |
832f2315 | 407 | { |
7fad41d4 | 408 | if (c_file != 0 && c_file[0]) |
832f2315 | 409 | maybe_unlink (c_file); |
410 | ||
7fad41d4 | 411 | if (o_file != 0 && o_file[0]) |
832f2315 | 412 | maybe_unlink (o_file); |
413 | ||
d2f0b724 | 414 | if (ldout != 0 && ldout[0]) |
415 | maybe_unlink (ldout); | |
416 | ||
d1058090 | 417 | #ifdef COLLECT_EXPORT_LIST |
70fd963a | 418 | if (export_file != 0 && export_file[0]) |
419 | maybe_unlink (export_file); | |
d1058090 | 420 | #endif |
421 | ||
832f2315 | 422 | signal (signo, SIG_DFL); |
832f2315 | 423 | kill (getpid (), signo); |
424 | } | |
425 | ||
426 | \f | |
d2f0b724 | 427 | int |
89a1f620 | 428 | file_exists (const char *name) |
d2f0b724 | 429 | { |
430 | return access (name, R_OK) == 0; | |
832f2315 | 431 | } |
432 | ||
7802b788 | 433 | /* Parse a reasonable subset of shell quoting syntax. */ |
434 | ||
435 | static char * | |
89a1f620 | 436 | extract_string (const char **pp) |
7802b788 | 437 | { |
e504db4a | 438 | const char *p = *pp; |
7802b788 | 439 | int backquote = 0; |
440 | int inside = 0; | |
441 | ||
442 | for (;;) | |
443 | { | |
444 | char c = *p; | |
445 | if (c == '\0') | |
446 | break; | |
447 | ++p; | |
448 | if (backquote) | |
449 | obstack_1grow (&temporary_obstack, c); | |
450 | else if (! inside && c == ' ') | |
451 | break; | |
452 | else if (! inside && c == '\\') | |
453 | backquote = 1; | |
454 | else if (c == '\'') | |
455 | inside = !inside; | |
456 | else | |
457 | obstack_1grow (&temporary_obstack, c); | |
458 | } | |
459 | ||
251341d1 | 460 | obstack_1grow (&temporary_obstack, '\0'); |
7802b788 | 461 | *pp = p; |
462 | return obstack_finish (&temporary_obstack); | |
463 | } | |
22f0924c | 464 | \f |
d2f0b724 | 465 | void |
89a1f620 | 466 | dump_file (const char *name) |
d2f0b724 | 467 | { |
468 | FILE *stream = fopen (name, "r"); | |
d2f0b724 | 469 | |
470 | if (stream == 0) | |
471 | return; | |
472 | while (1) | |
473 | { | |
474 | int c; | |
475 | while (c = getc (stream), | |
66a33570 | 476 | c != EOF && (ISIDNUM (c) || c == '$' || c == '.')) |
d2f0b724 | 477 | obstack_1grow (&temporary_obstack, c); |
478 | if (obstack_object_size (&temporary_obstack) > 0) | |
479 | { | |
e504db4a | 480 | const char *word, *p; |
481 | char *result; | |
d2f0b724 | 482 | obstack_1grow (&temporary_obstack, '\0'); |
483 | word = obstack_finish (&temporary_obstack); | |
484 | ||
485 | if (*word == '.') | |
486 | ++word, putc ('.', stderr); | |
487 | p = word; | |
65e49ff1 | 488 | if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) |
489 | p += strlen (USER_LABEL_PREFIX); | |
d2f0b724 | 490 | |
9c948bc2 | 491 | #ifdef HAVE_LD_DEMANGLE |
492 | result = 0; | |
493 | #else | |
d2f0b724 | 494 | if (no_demangle) |
495 | result = 0; | |
496 | else | |
c6d86b63 | 497 | result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE); |
9c948bc2 | 498 | #endif |
d2f0b724 | 499 | |
500 | if (result) | |
501 | { | |
502 | int diff; | |
503 | fputs (result, stderr); | |
504 | ||
505 | diff = strlen (word) - strlen (result); | |
402eb8ac | 506 | while (diff > 0 && c == ' ') |
d2f0b724 | 507 | --diff, putc (' ', stderr); |
508 | while (diff < 0 && c == ' ') | |
509 | ++diff, c = getc (stream); | |
510 | ||
511 | free (result); | |
512 | } | |
513 | else | |
514 | fputs (word, stderr); | |
515 | ||
516 | fflush (stderr); | |
517 | obstack_free (&temporary_obstack, temporary_firstobj); | |
518 | } | |
519 | if (c == EOF) | |
520 | break; | |
521 | putc (c, stderr); | |
522 | } | |
af4ae74b | 523 | fclose (stream); |
d2f0b724 | 524 | } |
525 | \f | |
d14933cf | 526 | /* Decide whether the given symbol is: a constructor (1), a destructor |
527 | (2), a routine in a shared object that calls all the constructors | |
528 | (3) or destructors (4), a DWARF exception-handling table (5), or | |
529 | nothing special (0). */ | |
22f0924c | 530 | |
531 | static int | |
89a1f620 | 532 | is_ctor_dtor (const char *s) |
22f0924c | 533 | { |
e99c3a1d | 534 | struct names { const char *const name; const int len; const int ret; |
535 | const int two_underscores; }; | |
22f0924c | 536 | |
33b57a7b | 537 | const struct names *p; |
19cb6b50 | 538 | int ch; |
539 | const char *orig_s = s; | |
22f0924c | 540 | |
33b57a7b | 541 | static const struct names special[] = { |
212c6484 | 542 | #ifndef NO_DOLLAR_IN_LABEL |
543 | { "GLOBAL__I$", sizeof ("GLOBAL__I$")-1, 1, 0 }, | |
544 | { "GLOBAL__D$", sizeof ("GLOBAL__D$")-1, 2, 0 }, | |
545 | #else | |
546 | #ifndef NO_DOT_IN_LABEL | |
547 | { "GLOBAL__I.", sizeof ("GLOBAL__I.")-1, 1, 0 }, | |
548 | { "GLOBAL__D.", sizeof ("GLOBAL__D.")-1, 2, 0 }, | |
549 | #endif /* NO_DOT_IN_LABEL */ | |
550 | #endif /* NO_DOLLAR_IN_LABEL */ | |
822d4c45 | 551 | { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 }, |
552 | { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 }, | |
d757b8c9 | 553 | { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 }, |
b7c87ff2 | 554 | { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 }, |
555 | { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 }, | |
22f0924c | 556 | { NULL, 0, 0, 0 } |
557 | }; | |
558 | ||
559 | while ((ch = *s) == '_') | |
560 | ++s; | |
561 | ||
562 | if (s == orig_s) | |
563 | return 0; | |
564 | ||
565 | for (p = &special[0]; p->len > 0; p++) | |
566 | { | |
567 | if (ch == p->name[0] | |
568 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
569 | && strncmp(s, p->name, p->len) == 0) | |
570 | { | |
571 | return p->ret; | |
572 | } | |
573 | } | |
574 | return 0; | |
575 | } | |
e533c428 | 576 | \f |
e533c428 | 577 | /* We maintain two prefix lists: one from COMPILER_PATH environment variable |
578 | and one from the PATH variable. */ | |
579 | ||
580 | static struct path_prefix cpath, path; | |
581 | ||
582 | #ifdef CROSS_COMPILE | |
583 | /* This is the name of the target machine. We use it to form the name | |
584 | of the files to execute. */ | |
585 | ||
e504db4a | 586 | static const char *const target_machine = TARGET_MACHINE; |
e533c428 | 587 | #endif |
efba5f69 | 588 | |
e533c428 | 589 | /* Search for NAME using prefix list PPREFIX. We only look for executable |
89a1f620 | 590 | files. |
e533c428 | 591 | |
a92771b8 | 592 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
e533c428 | 593 | |
594 | static char * | |
89a1f620 | 595 | find_a_file (struct path_prefix *pprefix, const char *name) |
e533c428 | 596 | { |
597 | char *temp; | |
598 | struct prefix_list *pl; | |
599 | int len = pprefix->max_len + strlen (name) + 1; | |
600 | ||
e8d8647e | 601 | if (debug) |
602 | fprintf (stderr, "Looking for '%s'\n", name); | |
89a1f620 | 603 | |
10f57222 | 604 | #ifdef HOST_EXECUTABLE_SUFFIX |
605 | len += strlen (HOST_EXECUTABLE_SUFFIX); | |
e533c428 | 606 | #endif |
607 | ||
608 | temp = xmalloc (len); | |
609 | ||
610 | /* Determine the filename to execute (special case for absolute paths). */ | |
611 | ||
e8d8647e | 612 | if (*name == '/' |
79b23a1e | 613 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
614 | || (*name && name[1] == ':') | |
e8d8647e | 615 | #endif |
616 | ) | |
e533c428 | 617 | { |
d6d40f04 | 618 | if (access (name, X_OK) == 0) |
e533c428 | 619 | { |
620 | strcpy (temp, name); | |
e8d8647e | 621 | |
622 | if (debug) | |
623 | fprintf (stderr, " - found: absolute path\n"); | |
89a1f620 | 624 | |
e533c428 | 625 | return temp; |
626 | } | |
e8d8647e | 627 | |
10f57222 | 628 | #ifdef HOST_EXECUTABLE_SUFFIX |
79b23a1e | 629 | /* Some systems have a suffix for executable files. |
630 | So try appending that. */ | |
631 | strcpy (temp, name); | |
10f57222 | 632 | strcat (temp, HOST_EXECUTABLE_SUFFIX); |
89a1f620 | 633 | |
79b23a1e | 634 | if (access (temp, X_OK) == 0) |
635 | return temp; | |
636 | #endif | |
637 | ||
e8d8647e | 638 | if (debug) |
639 | fprintf (stderr, " - failed to locate using absolute path\n"); | |
e533c428 | 640 | } |
641 | else | |
642 | for (pl = pprefix->plist; pl; pl = pl->next) | |
643 | { | |
4d5a901b | 644 | struct stat st; |
645 | ||
e533c428 | 646 | strcpy (temp, pl->prefix); |
647 | strcat (temp, name); | |
89a1f620 | 648 | |
4d5a901b | 649 | if (stat (temp, &st) >= 0 |
650 | && ! S_ISDIR (st.st_mode) | |
651 | && access (temp, X_OK) == 0) | |
0c787992 | 652 | return temp; |
e533c428 | 653 | |
10f57222 | 654 | #ifdef HOST_EXECUTABLE_SUFFIX |
e533c428 | 655 | /* Some systems have a suffix for executable files. |
656 | So try appending that. */ | |
10f57222 | 657 | strcat (temp, HOST_EXECUTABLE_SUFFIX); |
89a1f620 | 658 | |
4d5a901b | 659 | if (stat (temp, &st) >= 0 |
660 | && ! S_ISDIR (st.st_mode) | |
661 | && access (temp, X_OK) == 0) | |
0c787992 | 662 | return temp; |
663 | #endif | |
e533c428 | 664 | } |
665 | ||
e8d8647e | 666 | if (debug && pprefix->plist == NULL) |
667 | fprintf (stderr, " - failed: no entries in prefix list\n"); | |
668 | ||
e533c428 | 669 | free (temp); |
670 | return 0; | |
671 | } | |
672 | ||
673 | /* Add an entry for PREFIX to prefix list PPREFIX. */ | |
674 | ||
675 | static void | |
89a1f620 | 676 | add_prefix (struct path_prefix *pprefix, const char *prefix) |
e533c428 | 677 | { |
678 | struct prefix_list *pl, **prev; | |
679 | int len; | |
680 | ||
681 | if (pprefix->plist) | |
682 | { | |
683 | for (pl = pprefix->plist; pl->next; pl = pl->next) | |
684 | ; | |
685 | prev = &pl->next; | |
686 | } | |
687 | else | |
688 | prev = &pprefix->plist; | |
689 | ||
2358393e | 690 | /* Keep track of the longest prefix. */ |
e533c428 | 691 | |
692 | len = strlen (prefix); | |
693 | if (len > pprefix->max_len) | |
694 | pprefix->max_len = len; | |
695 | ||
f0af5a88 | 696 | pl = xmalloc (sizeof (struct prefix_list)); |
c96e0786 | 697 | pl->prefix = xstrdup (prefix); |
e533c428 | 698 | |
699 | if (*prev) | |
700 | pl->next = *prev; | |
701 | else | |
702 | pl->next = (struct prefix_list *) 0; | |
703 | *prev = pl; | |
704 | } | |
705 | \f | |
706 | /* Take the value of the environment variable ENV, break it into a path, and | |
707 | add of the entries to PPREFIX. */ | |
708 | ||
709 | static void | |
89a1f620 | 710 | prefix_from_env (const char *env, struct path_prefix *pprefix) |
e533c428 | 711 | { |
e504db4a | 712 | const char *p; |
f16449b7 | 713 | GET_ENVIRONMENT (p, env); |
e533c428 | 714 | |
715 | if (p) | |
a9b00323 | 716 | prefix_from_string (p, pprefix); |
717 | } | |
e533c428 | 718 | |
a9b00323 | 719 | static void |
89a1f620 | 720 | prefix_from_string (const char *p, struct path_prefix *pprefix) |
a9b00323 | 721 | { |
e504db4a | 722 | const char *startp, *endp; |
f0af5a88 | 723 | char *nstore = xmalloc (strlen (p) + 3); |
a9b00323 | 724 | |
e8d8647e | 725 | if (debug) |
726 | fprintf (stderr, "Convert string '%s' into prefixes, separator = '%c'\n", p, PATH_SEPARATOR); | |
89a1f620 | 727 | |
a9b00323 | 728 | startp = endp = p; |
729 | while (1) | |
730 | { | |
731 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
e533c428 | 732 | { |
a9b00323 | 733 | strncpy (nstore, startp, endp-startp); |
734 | if (endp == startp) | |
e533c428 | 735 | { |
a9b00323 | 736 | strcpy (nstore, "./"); |
737 | } | |
01a88289 | 738 | else if (! IS_DIR_SEPARATOR (endp[-1])) |
a9b00323 | 739 | { |
01a88289 | 740 | nstore[endp-startp] = DIR_SEPARATOR; |
a9b00323 | 741 | nstore[endp-startp+1] = 0; |
e533c428 | 742 | } |
743 | else | |
a9b00323 | 744 | nstore[endp-startp] = 0; |
745 | ||
e8d8647e | 746 | if (debug) |
747 | fprintf (stderr, " - add prefix: %s\n", nstore); | |
89a1f620 | 748 | |
a9b00323 | 749 | add_prefix (pprefix, nstore); |
750 | if (*endp == 0) | |
751 | break; | |
752 | endp = startp = endp + 1; | |
e533c428 | 753 | } |
a9b00323 | 754 | else |
755 | endp++; | |
e533c428 | 756 | } |
757 | } | |
832f2315 | 758 | \f |
a92771b8 | 759 | /* Main program. */ |
832f2315 | 760 | |
761 | int | |
89a1f620 | 762 | main (int argc, char **argv) |
832f2315 | 763 | { |
0d95286f | 764 | static const char *const ld_suffix = "ld"; |
0d95286f | 765 | static const char *const real_ld_suffix = "real-ld"; |
766 | static const char *const collect_ld_suffix = "collect-ld"; | |
767 | static const char *const nm_suffix = "nm"; | |
0d95286f | 768 | static const char *const gnm_suffix = "gnm"; |
b7c87ff2 | 769 | #ifdef LDD_SUFFIX |
0d95286f | 770 | static const char *const ldd_suffix = LDD_SUFFIX; |
e504db4a | 771 | #endif |
0d95286f | 772 | static const char *const strip_suffix = "strip"; |
0d95286f | 773 | static const char *const gstrip_suffix = "gstrip"; |
47950139 | 774 | |
775 | #ifdef CROSS_COMPILE | |
776 | /* If we look for a program in the compiler directories, we just use | |
777 | the short name, since these directories are already system-specific. | |
778 | But it we look for a program in the system directories, we need to | |
779 | qualify the program name with the target machine. */ | |
780 | ||
781 | const char *const full_ld_suffix = | |
782 | concat(target_machine, "-", ld_suffix, NULL); | |
783 | const char *const full_nm_suffix = | |
784 | concat (target_machine, "-", nm_suffix, NULL); | |
785 | const char *const full_gnm_suffix = | |
786 | concat (target_machine, "-", gnm_suffix, NULL); | |
787 | #ifdef LDD_SUFFIX | |
788 | const char *const full_ldd_suffix = | |
789 | concat (target_machine, "-", ldd_suffix, NULL); | |
790 | #endif | |
791 | const char *const full_strip_suffix = | |
792 | concat (target_machine, "-", strip_suffix, NULL); | |
793 | const char *const full_gstrip_suffix = | |
794 | concat (target_machine, "-", gstrip_suffix, NULL); | |
795 | #else | |
796 | const char *const full_ld_suffix = ld_suffix; | |
797 | const char *const full_nm_suffix = nm_suffix; | |
798 | const char *const full_gnm_suffix = gnm_suffix; | |
799 | #ifdef LDD_SUFFIX | |
800 | const char *const full_ldd_suffix = ldd_suffix; | |
801 | #endif | |
802 | const char *const full_strip_suffix = strip_suffix; | |
803 | const char *const full_gstrip_suffix = gstrip_suffix; | |
804 | #endif /* CROSS_COMPILE */ | |
805 | ||
e504db4a | 806 | const char *arg; |
d1058090 | 807 | FILE *outf; |
808 | #ifdef COLLECT_EXPORT_LIST | |
809 | FILE *exportf; | |
d1058090 | 810 | #endif |
e504db4a | 811 | const char *ld_file_name; |
812 | const char *p; | |
22f0924c | 813 | char **c_argv; |
e504db4a | 814 | const char **c_ptr; |
be2828ce | 815 | char **ld1_argv; |
e504db4a | 816 | const char **ld1; |
be2828ce | 817 | char **ld2_argv; |
e504db4a | 818 | const char **ld2; |
be2828ce | 819 | char **object_lst; |
e504db4a | 820 | const char **object; |
832f2315 | 821 | int first_file; |
7e897ee0 | 822 | int num_c_args = argc+9; |
832f2315 | 823 | |
402eb8ac | 824 | no_demangle = !! getenv ("COLLECT_NO_DEMANGLE"); |
825 | ||
826 | /* Suppress demangling by the real linker, which may be broken. */ | |
827 | putenv (xstrdup ("COLLECT_NO_DEMANGLE=")); | |
828 | ||
b6749968 | 829 | #if defined (COLLECT2_HOST_INITIALIZATION) |
dd5b4b36 | 830 | /* Perform system dependent initialization, if necessary. */ |
b6749968 | 831 | COLLECT2_HOST_INITIALIZATION; |
3b774709 | 832 | #endif |
833 | ||
6b917287 | 834 | #ifdef SIGCHLD |
835 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
836 | receive the signal. A different setting is inheritable */ | |
837 | signal (SIGCHLD, SIG_DFL); | |
838 | #endif | |
839 | ||
eb718689 | 840 | gcc_init_libintl (); |
be2828ce | 841 | |
842 | /* Do not invoke xcalloc before this point, since locale needs to be | |
843 | set first, in case a diagnostic is issued. */ | |
844 | ||
9c948bc2 | 845 | ld1 = (const char **)(ld1_argv = xcalloc(sizeof (char *), argc+4)); |
846 | ld2 = (const char **)(ld2_argv = xcalloc(sizeof (char *), argc+11)); | |
f0af5a88 | 847 | object = (const char **)(object_lst = xcalloc(sizeof (char *), argc)); |
be2828ce | 848 | |
832f2315 | 849 | #ifdef DEBUG |
850 | debug = 1; | |
832f2315 | 851 | #endif |
852 | ||
e8d8647e | 853 | /* Parse command line early for instances of -debug. This allows |
854 | the debug flag to be set before functions like find_a_file() | |
855 | are called. */ | |
856 | { | |
857 | int i; | |
89a1f620 | 858 | |
e8d8647e | 859 | for (i = 1; argv[i] != NULL; i ++) |
ff2185fb | 860 | { |
861 | if (! strcmp (argv[i], "-debug")) | |
862 | debug = 1; | |
ff2185fb | 863 | } |
e8d8647e | 864 | vflag = debug; |
865 | } | |
866 | ||
5258bbff | 867 | #ifndef DEFAULT_A_OUT_NAME |
131353cd | 868 | output_file = "a.out"; |
5258bbff | 869 | #else |
870 | output_file = DEFAULT_A_OUT_NAME; | |
871 | #endif | |
131353cd | 872 | |
d2f0b724 | 873 | obstack_begin (&temporary_obstack, 0); |
f0af5a88 | 874 | temporary_firstobj = obstack_alloc (&temporary_obstack, 0); |
aefe5019 | 875 | |
9c948bc2 | 876 | #ifndef HAVE_LD_DEMANGLE |
4d327eac | 877 | current_demangling_style = auto_demangling; |
9c948bc2 | 878 | #endif |
405711de | 879 | p = getenv ("COLLECT_GCC_OPTIONS"); |
7802b788 | 880 | while (p && *p) |
881 | { | |
e504db4a | 882 | const char *q = extract_string (&p); |
7802b788 | 883 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) |
884 | num_c_args++; | |
885 | } | |
886 | obstack_free (&temporary_obstack, temporary_firstobj); | |
6d6bf148 | 887 | |
cc4faf12 | 888 | /* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities |
889 | -fno-exceptions -w */ | |
890 | num_c_args += 5; | |
22f0924c | 891 | |
f0af5a88 | 892 | c_ptr = (const char **) (c_argv = xcalloc (sizeof (char *), num_c_args)); |
22f0924c | 893 | |
832f2315 | 894 | if (argc < 2) |
895 | fatal ("no arguments"); | |
896 | ||
3a0eb8c2 | 897 | #ifdef SIGQUIT |
003f6bf5 | 898 | if (signal (SIGQUIT, SIG_IGN) != SIG_IGN) |
899 | signal (SIGQUIT, handler); | |
3a0eb8c2 | 900 | #endif |
003f6bf5 | 901 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
902 | signal (SIGINT, handler); | |
3a0eb8c2 | 903 | #ifdef SIGALRM |
003f6bf5 | 904 | if (signal (SIGALRM, SIG_IGN) != SIG_IGN) |
905 | signal (SIGALRM, handler); | |
3a0eb8c2 | 906 | #endif |
907 | #ifdef SIGHUP | |
003f6bf5 | 908 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
909 | signal (SIGHUP, handler); | |
3a0eb8c2 | 910 | #endif |
003f6bf5 | 911 | if (signal (SIGSEGV, SIG_IGN) != SIG_IGN) |
912 | signal (SIGSEGV, handler); | |
3a0eb8c2 | 913 | #ifdef SIGBUS |
003f6bf5 | 914 | if (signal (SIGBUS, SIG_IGN) != SIG_IGN) |
915 | signal (SIGBUS, handler); | |
3a0eb8c2 | 916 | #endif |
832f2315 | 917 | |
e533c428 | 918 | /* Extract COMPILER_PATH and PATH into our prefix list. */ |
919 | prefix_from_env ("COMPILER_PATH", &cpath); | |
920 | prefix_from_env ("PATH", &path); | |
832f2315 | 921 | |
e533c428 | 922 | /* Try to discover a valid linker/nm/strip to use. */ |
923 | ||
6f73c4a6 | 924 | /* Maybe we know the right file to use (if not cross). */ |
84539f59 | 925 | ld_file_name = 0; |
f07251bc | 926 | #ifdef DEFAULT_LINKER |
927 | if (access (DEFAULT_LINKER, X_OK) == 0) | |
928 | ld_file_name = DEFAULT_LINKER; | |
929 | if (ld_file_name == 0) | |
930 | #endif | |
6f73c4a6 | 931 | #ifdef REAL_LD_FILE_NAME |
932 | ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME); | |
933 | if (ld_file_name == 0) | |
934 | #endif | |
d2f0b724 | 935 | /* Search the (target-specific) compiler dirs for ld'. */ |
936 | ld_file_name = find_a_file (&cpath, real_ld_suffix); | |
937 | /* Likewise for `collect-ld'. */ | |
e533c428 | 938 | if (ld_file_name == 0) |
d2f0b724 | 939 | ld_file_name = find_a_file (&cpath, collect_ld_suffix); |
d8dc9bd6 | 940 | /* Search the compiler directories for `ld'. We have protection against |
941 | recursive calls in find_a_file. */ | |
2fd139da | 942 | if (ld_file_name == 0) |
d8dc9bd6 | 943 | ld_file_name = find_a_file (&cpath, ld_suffix); |
e533c428 | 944 | /* Search the ordinary system bin directories |
f17a8f4e | 945 | for `ld' (if native linking) or `TARGET-ld' (if cross). */ |
e533c428 | 946 | if (ld_file_name == 0) |
947 | ld_file_name = find_a_file (&path, full_ld_suffix); | |
948 | ||
6f73c4a6 | 949 | #ifdef REAL_NM_FILE_NAME |
950 | nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME); | |
951 | if (nm_file_name == 0) | |
952 | #endif | |
e533c428 | 953 | nm_file_name = find_a_file (&cpath, gnm_suffix); |
954 | if (nm_file_name == 0) | |
955 | nm_file_name = find_a_file (&path, full_gnm_suffix); | |
956 | if (nm_file_name == 0) | |
957 | nm_file_name = find_a_file (&cpath, nm_suffix); | |
e533c428 | 958 | if (nm_file_name == 0) |
959 | nm_file_name = find_a_file (&path, full_nm_suffix); | |
960 | ||
b7c87ff2 | 961 | #ifdef LDD_SUFFIX |
962 | ldd_file_name = find_a_file (&cpath, ldd_suffix); | |
963 | if (ldd_file_name == 0) | |
964 | ldd_file_name = find_a_file (&path, full_ldd_suffix); | |
965 | #endif | |
966 | ||
6f73c4a6 | 967 | #ifdef REAL_STRIP_FILE_NAME |
968 | strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME); | |
969 | if (strip_file_name == 0) | |
970 | #endif | |
e533c428 | 971 | strip_file_name = find_a_file (&cpath, gstrip_suffix); |
972 | if (strip_file_name == 0) | |
973 | strip_file_name = find_a_file (&path, full_gstrip_suffix); | |
974 | if (strip_file_name == 0) | |
975 | strip_file_name = find_a_file (&cpath, strip_suffix); | |
e533c428 | 976 | if (strip_file_name == 0) |
977 | strip_file_name = find_a_file (&path, full_strip_suffix); | |
832f2315 | 978 | |
8989da5d | 979 | /* Determine the full path name of the C compiler to use. */ |
22f0924c | 980 | c_file_name = getenv ("COLLECT_GCC"); |
e77396ba | 981 | if (c_file_name == 0) |
832f2315 | 982 | { |
e533c428 | 983 | #ifdef CROSS_COMPILE |
e504db4a | 984 | c_file_name = concat (target_machine, "-gcc", NULL); |
832f2315 | 985 | #else |
e533c428 | 986 | c_file_name = "gcc"; |
8989da5d | 987 | #endif |
8989da5d | 988 | } |
989 | ||
e533c428 | 990 | p = find_a_file (&cpath, c_file_name); |
991 | ||
992 | /* Here it should be safe to use the system search path since we should have | |
993 | already qualified the name of the compiler when it is needed. */ | |
994 | if (p == 0) | |
995 | p = find_a_file (&path, c_file_name); | |
996 | ||
997 | if (p) | |
998 | c_file_name = p; | |
832f2315 | 999 | |
f375f2ce | 1000 | *ld1++ = *ld2++ = ld_file_name; |
832f2315 | 1001 | |
a92771b8 | 1002 | /* Make temp file names. */ |
e8b04076 | 1003 | c_file = make_temp_file (".c"); |
1004 | o_file = make_temp_file (".o"); | |
d1058090 | 1005 | #ifdef COLLECT_EXPORT_LIST |
e8b04076 | 1006 | export_file = make_temp_file (".x"); |
d1058090 | 1007 | #endif |
e8b04076 | 1008 | ldout = make_temp_file (".ld"); |
22f0924c | 1009 | *c_ptr++ = c_file_name; |
7e897ee0 | 1010 | *c_ptr++ = "-x"; |
1011 | *c_ptr++ = "c"; | |
832f2315 | 1012 | *c_ptr++ = "-c"; |
1013 | *c_ptr++ = "-o"; | |
1014 | *c_ptr++ = o_file; | |
1015 | ||
d1058090 | 1016 | #ifdef COLLECT_EXPORT_LIST |
1017 | /* Generate a list of directories from LIBPATH. */ | |
1018 | prefix_from_env ("LIBPATH", &libpath_lib_dirs); | |
1019 | /* Add to this list also two standard directories where | |
1020 | AIX loader always searches for libraries. */ | |
1021 | add_prefix (&libpath_lib_dirs, "/lib"); | |
1022 | add_prefix (&libpath_lib_dirs, "/usr/lib"); | |
1023 | #endif | |
1024 | ||
89a1f620 | 1025 | /* Get any options that the upper GCC wants to pass to the sub-GCC. |
d1058090 | 1026 | |
1027 | AIX support needs to know if -shared has been specified before | |
1028 | parsing commandline arguments. */ | |
1029 | ||
405711de | 1030 | p = getenv ("COLLECT_GCC_OPTIONS"); |
d1058090 | 1031 | while (p && *p) |
1032 | { | |
e504db4a | 1033 | const char *q = extract_string (&p); |
d1058090 | 1034 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) |
92192583 | 1035 | *c_ptr++ = xstrdup (q); |
35241897 | 1036 | if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0) |
92192583 | 1037 | *c_ptr++ = xstrdup (q); |
625bfde6 | 1038 | if (strcmp (q, "-shared") == 0) |
d1058090 | 1039 | shared_obj = 1; |
d647a767 | 1040 | if (*q == '-' && q[1] == 'B') |
1041 | { | |
92192583 | 1042 | *c_ptr++ = xstrdup (q); |
d647a767 | 1043 | if (q[2] == 0) |
1044 | { | |
1045 | q = extract_string (&p); | |
92192583 | 1046 | *c_ptr++ = xstrdup (q); |
d647a767 | 1047 | } |
1048 | } | |
d1058090 | 1049 | } |
1050 | obstack_free (&temporary_obstack, temporary_firstobj); | |
cc4faf12 | 1051 | *c_ptr++ = "-fno-profile-arcs"; |
1052 | *c_ptr++ = "-fno-test-coverage"; | |
1053 | *c_ptr++ = "-fno-branch-probabilities"; | |
d1058090 | 1054 | *c_ptr++ = "-fno-exceptions"; |
6d6bf148 | 1055 | *c_ptr++ = "-w"; |
d1058090 | 1056 | |
22f0924c | 1057 | /* !!! When GCC calls collect2, |
1058 | it does not know whether it is calling collect2 or ld. | |
1059 | So collect2 cannot meaningfully understand any options | |
1060 | except those ld understands. | |
1061 | If you propose to make GCC pass some other option, | |
1062 | just imagine what will happen if ld is really ld!!! */ | |
1063 | ||
a92771b8 | 1064 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
22f0924c | 1065 | /* After the first file, put in the c++ rt0. */ |
1066 | ||
832f2315 | 1067 | first_file = 1; |
9c948bc2 | 1068 | #ifdef HAVE_LD_DEMANGLE |
5814fc8c | 1069 | if (!demangle_flag && !no_demangle) |
1070 | demangle_flag = "--demangle"; | |
1071 | if (demangle_flag) | |
1072 | *ld1++ = *ld2++ = demangle_flag; | |
9c948bc2 | 1073 | #endif |
a92771b8 | 1074 | while ((arg = *++argv) != (char *) 0) |
832f2315 | 1075 | { |
1076 | *ld1++ = *ld2++ = arg; | |
1077 | ||
1078 | if (arg[0] == '-') | |
f314c55f | 1079 | { |
832f2315 | 1080 | switch (arg[1]) |
1081 | { | |
d1058090 | 1082 | #ifdef COLLECT_EXPORT_LIST |
1083 | /* We want to disable automatic exports on AIX when user | |
1084 | explicitly puts an export list in command line */ | |
1085 | case 'b': | |
1086 | if (arg[2] == 'E' || strncmp (&arg[2], "export", 6) == 0) | |
1087 | export_flag = 1; | |
666c5fb9 | 1088 | else if (arg[2] == '6' && arg[3] == '4') |
9ae139a2 | 1089 | aix64_flag = 1; |
07090bac | 1090 | else if (arg[2] == 'r' && arg[3] == 't' && arg[4] == 'l') |
1091 | aixrtl_flag = 1; | |
d1058090 | 1092 | break; |
1093 | #endif | |
1094 | ||
832f2315 | 1095 | case 'd': |
1096 | if (!strcmp (arg, "-debug")) | |
1097 | { | |
e8d8647e | 1098 | /* Already parsed. */ |
832f2315 | 1099 | ld1--; |
1100 | ld2--; | |
1101 | } | |
0f7571bb | 1102 | if (!strcmp (arg, "-dynamic-linker") && argv[1]) |
1103 | { | |
1104 | ++argv; | |
1105 | *ld1++ = *ld2++ = *argv; | |
1106 | } | |
832f2315 | 1107 | break; |
1108 | ||
b7c87ff2 | 1109 | case 'l': |
1110 | if (first_file) | |
1111 | { | |
1112 | /* place o_file BEFORE this argument! */ | |
1113 | first_file = 0; | |
1114 | ld2--; | |
1115 | *ld2++ = o_file; | |
1116 | *ld2++ = arg; | |
1117 | } | |
d1058090 | 1118 | #ifdef COLLECT_EXPORT_LIST |
1119 | { | |
1120 | /* Resolving full library name. */ | |
e504db4a | 1121 | const char *s = resolve_lib_name (arg+2); |
d1058090 | 1122 | |
d1058090 | 1123 | /* Saving a full library name. */ |
1124 | add_to_list (&libs, s); | |
1125 | } | |
1126 | #endif | |
1127 | break; | |
1128 | ||
1129 | #ifdef COLLECT_EXPORT_LIST | |
1130 | /* Saving directories where to search for libraries. */ | |
89a1f620 | 1131 | case 'L': |
d1058090 | 1132 | add_prefix (&cmdline_lib_dirs, arg+2); |
b7c87ff2 | 1133 | break; |
89a1f620 | 1134 | #else |
8ae48c7c | 1135 | #if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES |
1136 | case 'L': | |
1137 | if (is_in_args (arg, (const char **) ld1_argv, ld1-1)) | |
1138 | --ld1; | |
1139 | break; | |
1140 | #endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */ | |
d1058090 | 1141 | #endif |
b7c87ff2 | 1142 | |
832f2315 | 1143 | case 'o': |
661ab6cf | 1144 | if (arg[2] == '\0') |
1145 | output_file = *ld1++ = *ld2++ = *++argv; | |
155b05dc | 1146 | else if (1 |
1147 | #ifdef SWITCHES_NEED_SPACES | |
78dbff7c | 1148 | && ! strchr (SWITCHES_NEED_SPACES, arg[1]) |
155b05dc | 1149 | #endif |
1150 | ) | |
1151 | ||
661ab6cf | 1152 | output_file = &arg[2]; |
832f2315 | 1153 | break; |
1154 | ||
1155 | case 'r': | |
1156 | if (arg[2] == '\0') | |
1157 | rflag = 1; | |
1158 | break; | |
1159 | ||
8989da5d | 1160 | case 's': |
d2f0b724 | 1161 | if (arg[2] == '\0' && do_collecting) |
8989da5d | 1162 | { |
1163 | /* We must strip after the nm run, otherwise C++ linking | |
d1058090 | 1164 | will not work. Thus we strip in the second ld run, or |
8989da5d | 1165 | else with strip if there is no second ld run. */ |
1166 | strip_flag = 1; | |
1167 | ld1--; | |
1168 | } | |
1169 | break; | |
1170 | ||
832f2315 | 1171 | case 'v': |
1172 | if (arg[2] == '\0') | |
1173 | vflag = 1; | |
1174 | break; | |
5814fc8c | 1175 | |
1176 | case '-': | |
1177 | if (strcmp (arg, "--no-demangle") == 0) | |
1178 | { | |
1179 | demangle_flag = arg; | |
1180 | no_demangle = 1; | |
1181 | ld1--; | |
1182 | ld2--; | |
1183 | } | |
1184 | else if (strncmp (arg, "--demangle", 10) == 0) | |
1185 | { | |
1186 | demangle_flag = arg; | |
1187 | no_demangle = 0; | |
1188 | #ifndef HAVE_LD_DEMANGLE | |
1189 | if (arg[10] == '=') | |
1190 | { | |
1191 | enum demangling_styles style | |
1192 | = cplus_demangle_name_to_style (arg+11); | |
1193 | if (style == unknown_demangling) | |
1194 | error ("unknown demangling style '%s'", arg+11); | |
1195 | else | |
1196 | current_demangling_style = style; | |
1197 | } | |
1198 | #endif | |
1199 | ld1--; | |
1200 | ld2--; | |
1201 | } | |
1202 | break; | |
832f2315 | 1203 | } |
f314c55f | 1204 | } |
78dbff7c | 1205 | else if ((p = strrchr (arg, '.')) != (char *) 0 |
d1058090 | 1206 | && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0 |
c8b793cf | 1207 | || strcmp (p, ".so") == 0 || strcmp (p, ".lo") == 0 |
1208 | || strcmp (p, ".obj") == 0)) | |
832f2315 | 1209 | { |
fc630b38 | 1210 | if (first_file) |
1211 | { | |
1212 | first_file = 0; | |
661ab6cf | 1213 | if (p[1] == 'o') |
1214 | *ld2++ = o_file; | |
1215 | else | |
1216 | { | |
1217 | /* place o_file BEFORE this argument! */ | |
1218 | ld2--; | |
1219 | *ld2++ = o_file; | |
1220 | *ld2++ = arg; | |
1221 | } | |
fc630b38 | 1222 | } |
0320a56b | 1223 | if (p[1] == 'o' || p[1] == 'l') |
fc630b38 | 1224 | *object++ = arg; |
d1058090 | 1225 | #ifdef COLLECT_EXPORT_LIST |
1226 | /* libraries can be specified directly, i.e. without -l flag. */ | |
89a1f620 | 1227 | else |
1228 | { | |
d1058090 | 1229 | /* Saving a full library name. */ |
1230 | add_to_list (&libs, arg); | |
1231 | } | |
1232 | #endif | |
832f2315 | 1233 | } |
1234 | } | |
1235 | ||
d1058090 | 1236 | #ifdef COLLECT_EXPORT_LIST |
1237 | /* This is added only for debugging purposes. */ | |
1238 | if (debug) | |
7802b788 | 1239 | { |
d1058090 | 1240 | fprintf (stderr, "List of libraries:\n"); |
1241 | dump_list (stderr, "\t", libs.first); | |
7802b788 | 1242 | } |
22f0924c | 1243 | |
a9b00323 | 1244 | /* The AIX linker will discard static constructors in object files if |
1245 | nothing else in the file is referenced, so look at them first. */ | |
a9b00323 | 1246 | { |
a737f54e | 1247 | const char **export_object_lst = (const char **)object_lst; |
4e2fa0bf | 1248 | |
d1058090 | 1249 | while (export_object_lst < object) |
1250 | scan_prog_file (*export_object_lst++, PASS_OBJ); | |
1251 | } | |
1252 | { | |
1253 | struct id *list = libs.first; | |
4e2fa0bf | 1254 | |
d1058090 | 1255 | for (; list; list = list->next) |
1256 | scan_prog_file (list->name, PASS_FIRST); | |
1257 | } | |
4e2fa0bf | 1258 | |
1259 | if (exports.first) | |
1260 | { | |
284a7b54 | 1261 | char *buf = concat ("-bE:", export_file, NULL); |
89a1f620 | 1262 | |
4e2fa0bf | 1263 | *ld1++ = buf; |
1264 | *ld2++ = buf; | |
1265 | ||
1266 | exportf = fopen (export_file, "w"); | |
1267 | if (exportf == (FILE *) 0) | |
1268 | fatal_perror ("fopen %s", export_file); | |
1269 | write_aix_file (exportf, exports.first); | |
1270 | if (fclose (exportf)) | |
1271 | fatal_perror ("fclose %s", export_file); | |
1272 | } | |
a9b00323 | 1273 | #endif |
1274 | ||
832f2315 | 1275 | *c_ptr++ = c_file; |
e504db4a | 1276 | *c_ptr = *ld1 = *object = (char *) 0; |
832f2315 | 1277 | |
1278 | if (vflag) | |
1279 | { | |
be2828ce | 1280 | notice ("collect2 version %s", version_string); |
832f2315 | 1281 | #ifdef TARGET_VERSION |
1282 | TARGET_VERSION; | |
1283 | #endif | |
1284 | fprintf (stderr, "\n"); | |
1285 | } | |
1286 | ||
1287 | if (debug) | |
1288 | { | |
e504db4a | 1289 | const char *ptr; |
2271b4f6 | 1290 | fprintf (stderr, "ld_file_name = %s\n", |
1291 | (ld_file_name ? ld_file_name : "not found")); | |
1292 | fprintf (stderr, "c_file_name = %s\n", | |
1293 | (c_file_name ? c_file_name : "not found")); | |
1294 | fprintf (stderr, "nm_file_name = %s\n", | |
1295 | (nm_file_name ? nm_file_name : "not found")); | |
b7c87ff2 | 1296 | #ifdef LDD_SUFFIX |
1297 | fprintf (stderr, "ldd_file_name = %s\n", | |
1298 | (ldd_file_name ? ldd_file_name : "not found")); | |
1299 | #endif | |
2271b4f6 | 1300 | fprintf (stderr, "strip_file_name = %s\n", |
1301 | (strip_file_name ? strip_file_name : "not found")); | |
1302 | fprintf (stderr, "c_file = %s\n", | |
1303 | (c_file ? c_file : "not found")); | |
1304 | fprintf (stderr, "o_file = %s\n", | |
1305 | (o_file ? o_file : "not found")); | |
22f0924c | 1306 | |
1307 | ptr = getenv ("COLLECT_GCC_OPTIONS"); | |
1308 | if (ptr) | |
1309 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
1310 | ||
1311 | ptr = getenv ("COLLECT_GCC"); | |
1312 | if (ptr) | |
1313 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
1314 | ||
1315 | ptr = getenv ("COMPILER_PATH"); | |
1316 | if (ptr) | |
1317 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
1318 | ||
397f1574 | 1319 | ptr = getenv (LIBRARY_PATH_ENV); |
22f0924c | 1320 | if (ptr) |
397f1574 | 1321 | fprintf (stderr, "%-20s= %s\n", LIBRARY_PATH_ENV, ptr); |
22f0924c | 1322 | |
1323 | fprintf (stderr, "\n"); | |
832f2315 | 1324 | } |
1325 | ||
94ca3aab | 1326 | /* Load the program, searching all libraries and attempting to provide |
1327 | undefined symbols from repository information. */ | |
832f2315 | 1328 | |
d1058090 | 1329 | /* On AIX we do this later. */ |
24273823 | 1330 | #ifndef COLLECT_EXPORT_LIST |
09d1782e | 1331 | do_tlink (ld1_argv, object_lst); |
1a2eb5e5 | 1332 | #endif |
832f2315 | 1333 | |
d1058090 | 1334 | /* If -r or they will be run via some other method, do not build the |
3c5bf269 | 1335 | constructor or destructor list, just return now. */ |
a0560243 | 1336 | if (rflag |
1337 | #ifndef COLLECT_EXPORT_LIST | |
1338 | || ! do_collecting | |
1339 | #endif | |
1340 | ) | |
94ca3aab | 1341 | { |
35363d84 | 1342 | #ifdef COLLECT_EXPORT_LIST |
09d1782e | 1343 | /* Do the link we avoided above if we are exiting. */ |
1344 | do_tlink (ld1_argv, object_lst); | |
1345 | ||
94ca3aab | 1346 | /* But make sure we delete the export file we may have created. */ |
1347 | if (export_file != 0 && export_file[0]) | |
1348 | maybe_unlink (export_file); | |
35363d84 | 1349 | #endif |
1526a87c | 1350 | maybe_unlink (c_file); |
1351 | maybe_unlink (o_file); | |
94ca3aab | 1352 | return 0; |
1353 | } | |
832f2315 | 1354 | |
d2f0b724 | 1355 | /* Examine the namelist with nm and search it for static constructors |
1356 | and destructors to call. | |
3c5bf269 | 1357 | Write the constructor and destructor tables to a .s file and reload. */ |
d2f0b724 | 1358 | |
4e2fa0bf | 1359 | /* On AIX we already scanned for global constructors/destructors. */ |
d1058090 | 1360 | #ifndef COLLECT_EXPORT_LIST |
131353cd | 1361 | scan_prog_file (output_file, PASS_FIRST); |
d1058090 | 1362 | #endif |
832f2315 | 1363 | |
b7c87ff2 | 1364 | #ifdef SCAN_LIBRARIES |
1365 | scan_libraries (output_file); | |
1366 | #endif | |
1367 | ||
832f2315 | 1368 | if (debug) |
1369 | { | |
be2828ce | 1370 | notice ("%d constructor(s) found\n", constructors.number); |
1371 | notice ("%d destructor(s) found\n", destructors.number); | |
c3393573 | 1372 | notice ("%d frame table(s) found\n", frame_tables.number); |
832f2315 | 1373 | } |
1374 | ||
b7c87ff2 | 1375 | if (constructors.number == 0 && destructors.number == 0 |
d757b8c9 | 1376 | && frame_tables.number == 0 |
d1058090 | 1377 | #if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST) |
b7c87ff2 | 1378 | /* If we will be running these functions ourselves, we want to emit |
d1058090 | 1379 | stubs into the shared library so that we do not have to relink |
b7c87ff2 | 1380 | dependent programs when we add static objects. */ |
1381 | && ! shared_obj | |
1382 | #endif | |
1383 | ) | |
8989da5d | 1384 | { |
d1058090 | 1385 | #ifdef COLLECT_EXPORT_LIST |
2358393e | 1386 | /* Do tlink without additional code generation. */ |
d1058090 | 1387 | do_tlink (ld1_argv, object_lst); |
1388 | #endif | |
8989da5d | 1389 | /* Strip now if it was requested on the command line. */ |
1390 | if (strip_flag) | |
1391 | { | |
f0af5a88 | 1392 | char **real_strip_argv = xcalloc (sizeof (char *), 3); |
e504db4a | 1393 | const char ** strip_argv = (const char **) real_strip_argv; |
89a1f620 | 1394 | |
f9a00e58 | 1395 | strip_argv[0] = strip_file_name; |
131353cd | 1396 | strip_argv[1] = output_file; |
8989da5d | 1397 | strip_argv[2] = (char *) 0; |
e504db4a | 1398 | fork_execute ("strip", real_strip_argv); |
8989da5d | 1399 | } |
46a1b049 | 1400 | |
1401 | #ifdef COLLECT_EXPORT_LIST | |
1402 | maybe_unlink (export_file); | |
1403 | #endif | |
1526a87c | 1404 | maybe_unlink (c_file); |
1405 | maybe_unlink (o_file); | |
8989da5d | 1406 | return 0; |
1407 | } | |
832f2315 | 1408 | |
2c0e001b | 1409 | /* Sort ctor and dtor lists by priority. */ |
9bc65db1 | 1410 | sort_ids (&constructors); |
1411 | sort_ids (&destructors); | |
1412 | ||
1611b3e1 | 1413 | maybe_unlink(output_file); |
832f2315 | 1414 | outf = fopen (c_file, "w"); |
a92771b8 | 1415 | if (outf == (FILE *) 0) |
be2828ce | 1416 | fatal_perror ("fopen %s", c_file); |
832f2315 | 1417 | |
1418 | write_c_file (outf, c_file); | |
1419 | ||
1420 | if (fclose (outf)) | |
be2828ce | 1421 | fatal_perror ("fclose %s", c_file); |
832f2315 | 1422 | |
661ab6cf | 1423 | /* Tell the linker that we have initializer and finalizer functions. */ |
1424 | #ifdef LD_INIT_SWITCH | |
a737f54e | 1425 | #ifdef COLLECT_EXPORT_LIST |
284a7b54 | 1426 | *ld2++ = concat (LD_INIT_SWITCH, ":", initname, ":", fininame, NULL); |
a737f54e | 1427 | #else |
661ab6cf | 1428 | *ld2++ = LD_INIT_SWITCH; |
1429 | *ld2++ = initname; | |
1430 | *ld2++ = LD_FINI_SWITCH; | |
1431 | *ld2++ = fininame; | |
1432 | #endif | |
a737f54e | 1433 | #endif |
661ab6cf | 1434 | |
a9b00323 | 1435 | #ifdef COLLECT_EXPORT_LIST |
1436 | if (shared_obj) | |
1437 | { | |
4e2fa0bf | 1438 | /* If we did not add export flag to link arguments before, add it to |
1439 | second link phase now. No new exports should have been added. */ | |
1440 | if (! exports.first) | |
284a7b54 | 1441 | *ld2++ = concat ("-bE:", export_file, NULL); |
4e2fa0bf | 1442 | |
d3cef9f8 | 1443 | #ifndef LD_INIT_SWITCH |
a9b00323 | 1444 | add_to_list (&exports, initname); |
1445 | add_to_list (&exports, fininame); | |
661ab6cf | 1446 | add_to_list (&exports, "_GLOBAL__DI"); |
1447 | add_to_list (&exports, "_GLOBAL__DD"); | |
d3cef9f8 | 1448 | #endif |
a9b00323 | 1449 | exportf = fopen (export_file, "w"); |
a92771b8 | 1450 | if (exportf == (FILE *) 0) |
be2828ce | 1451 | fatal_perror ("fopen %s", export_file); |
4e2fa0bf | 1452 | write_aix_file (exportf, exports.first); |
a9b00323 | 1453 | if (fclose (exportf)) |
be2828ce | 1454 | fatal_perror ("fclose %s", export_file); |
a9b00323 | 1455 | } |
1456 | #endif | |
1457 | ||
4e2fa0bf | 1458 | /* End of arguments to second link phase. */ |
1459 | *ld2 = (char*) 0; | |
1460 | ||
832f2315 | 1461 | if (debug) |
1462 | { | |
131353cd | 1463 | fprintf (stderr, "\n========== output_file = %s, c_file = %s\n", |
1464 | output_file, c_file); | |
832f2315 | 1465 | write_c_file (stderr, "stderr"); |
1466 | fprintf (stderr, "========== end of c_file\n\n"); | |
a9b00323 | 1467 | #ifdef COLLECT_EXPORT_LIST |
1468 | fprintf (stderr, "\n========== export_file = %s\n", export_file); | |
4e2fa0bf | 1469 | write_aix_file (stderr, exports.first); |
a9b00323 | 1470 | fprintf (stderr, "========== end of export_file\n\n"); |
1471 | #endif | |
832f2315 | 1472 | } |
1473 | ||
1474 | /* Assemble the constructor and destructor tables. | |
a92771b8 | 1475 | Link the tables in with the rest of the program. */ |
832f2315 | 1476 | |
f9a00e58 | 1477 | fork_execute ("gcc", c_argv); |
d1058090 | 1478 | #ifdef COLLECT_EXPORT_LIST |
8b332087 | 1479 | /* On AIX we must call tlink because of possible templates resolution. */ |
d1058090 | 1480 | do_tlink (ld2_argv, object_lst); |
1481 | #else | |
8b332087 | 1482 | /* Otherwise, simply call ld because tlink is already done. */ |
f9a00e58 | 1483 | fork_execute ("ld", ld2_argv); |
832f2315 | 1484 | |
1485 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
1486 | constructors/destructors in shared libraries. */ | |
131353cd | 1487 | scan_prog_file (output_file, PASS_SECOND); |
89a1f620 | 1488 | #endif |
832f2315 | 1489 | |
1490 | maybe_unlink (c_file); | |
1491 | maybe_unlink (o_file); | |
d1058090 | 1492 | |
1493 | #ifdef COLLECT_EXPORT_LIST | |
a9b00323 | 1494 | maybe_unlink (export_file); |
d1058090 | 1495 | #endif |
1496 | ||
832f2315 | 1497 | return 0; |
1498 | } | |
1499 | ||
1500 | \f | |
d10cfa8d | 1501 | /* Wait for a process to finish, and exit if a nonzero status is found. */ |
832f2315 | 1502 | |
d2f0b724 | 1503 | int |
89a1f620 | 1504 | collect_wait (const char *prog) |
832f2315 | 1505 | { |
1506 | int status; | |
1507 | ||
71a0b5ce | 1508 | pwait (pid, &status, 0); |
832f2315 | 1509 | if (status) |
1510 | { | |
b7826aae | 1511 | if (WIFSIGNALED (status)) |
832f2315 | 1512 | { |
b7826aae | 1513 | int sig = WTERMSIG (status); |
e4ba8ded | 1514 | error ("%s terminated with signal %d [%s]%s", |
1515 | prog, sig, strsignal(sig), | |
5519412f | 1516 | WCOREDUMP(status) ? ", core dumped" : ""); |
5fcf1827 | 1517 | collect_exit (FATAL_EXIT_CODE); |
832f2315 | 1518 | } |
1519 | ||
b7826aae | 1520 | if (WIFEXITED (status)) |
d2f0b724 | 1521 | return WEXITSTATUS (status); |
1522 | } | |
1523 | return 0; | |
1524 | } | |
1525 | ||
1526 | static void | |
89a1f620 | 1527 | do_wait (const char *prog) |
d2f0b724 | 1528 | { |
1529 | int ret = collect_wait (prog); | |
1530 | if (ret != 0) | |
1531 | { | |
1532 | error ("%s returned %d exit status", prog, ret); | |
1533 | collect_exit (ret); | |
832f2315 | 1534 | } |
1535 | } | |
1536 | ||
1537 | \f | |
3b774709 | 1538 | /* Execute a program, and wait for the reply. */ |
832f2315 | 1539 | |
d2f0b724 | 1540 | void |
89a1f620 | 1541 | collect_execute (const char *prog, char **argv, const char *redir) |
832f2315 | 1542 | { |
3b774709 | 1543 | char *errmsg_fmt; |
1544 | char *errmsg_arg; | |
1545 | int redir_handle = -1; | |
1546 | int stdout_save = -1; | |
1547 | int stderr_save = -1; | |
832f2315 | 1548 | |
1549 | if (vflag || debug) | |
1550 | { | |
1551 | char **p_argv; | |
e504db4a | 1552 | const char *str; |
832f2315 | 1553 | |
f9a00e58 | 1554 | if (argv[0]) |
1555 | fprintf (stderr, "%s", argv[0]); | |
e533c428 | 1556 | else |
be2828ce | 1557 | notice ("[cannot find %s]", prog); |
e533c428 | 1558 | |
a92771b8 | 1559 | for (p_argv = &argv[1]; (str = *p_argv) != (char *) 0; p_argv++) |
832f2315 | 1560 | fprintf (stderr, " %s", str); |
1561 | ||
1562 | fprintf (stderr, "\n"); | |
1563 | } | |
1564 | ||
1565 | fflush (stdout); | |
1566 | fflush (stderr); | |
1567 | ||
d1058090 | 1568 | /* If we cannot find a program we need, complain error. Do this here |
1569 | since we might not end up needing something that we could not find. */ | |
e533c428 | 1570 | |
f9a00e58 | 1571 | if (argv[0] == 0) |
1e5fcbe2 | 1572 | fatal ("cannot find '%s'", prog); |
e533c428 | 1573 | |
3b774709 | 1574 | if (redir) |
1575 | { | |
1576 | /* Open response file. */ | |
1577 | redir_handle = open (redir, O_WRONLY | O_TRUNC | O_CREAT); | |
1578 | ||
1579 | /* Duplicate the stdout and stderr file handles | |
1580 | so they can be restored later. */ | |
1581 | stdout_save = dup (STDOUT_FILENO); | |
1582 | if (stdout_save == -1) | |
1583 | fatal_perror ("redirecting stdout: %s", redir); | |
1584 | stderr_save = dup (STDERR_FILENO); | |
1585 | if (stderr_save == -1) | |
1586 | fatal_perror ("redirecting stdout: %s", redir); | |
1587 | ||
1588 | /* Redirect stdout & stderr to our response file. */ | |
1589 | dup2 (redir_handle, STDOUT_FILENO); | |
1590 | dup2 (redir_handle, STDERR_FILENO); | |
1591 | } | |
832f2315 | 1592 | |
71a0b5ce | 1593 | pid = pexecute (argv[0], argv, argv[0], NULL, &errmsg_fmt, &errmsg_arg, |
1594 | (PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH)); | |
3b774709 | 1595 | |
1596 | if (redir) | |
832f2315 | 1597 | { |
3b774709 | 1598 | /* Restore stdout and stderr to their previous settings. */ |
1599 | dup2 (stdout_save, STDOUT_FILENO); | |
1600 | dup2 (stderr_save, STDERR_FILENO); | |
d2f0b724 | 1601 | |
4a82352a | 1602 | /* Close response file. */ |
3b774709 | 1603 | close (redir_handle); |
832f2315 | 1604 | } |
3b774709 | 1605 | |
71a0b5ce | 1606 | if (pid == -1) |
3b774709 | 1607 | fatal_perror (errmsg_fmt, errmsg_arg); |
d2f0b724 | 1608 | } |
832f2315 | 1609 | |
d2f0b724 | 1610 | static void |
89a1f620 | 1611 | fork_execute (const char *prog, char **argv) |
d2f0b724 | 1612 | { |
1613 | collect_execute (prog, argv, NULL); | |
832f2315 | 1614 | do_wait (prog); |
832f2315 | 1615 | } |
832f2315 | 1616 | \f |
1617 | /* Unlink a file unless we are debugging. */ | |
1618 | ||
1619 | static void | |
89a1f620 | 1620 | maybe_unlink (const char *file) |
832f2315 | 1621 | { |
1622 | if (!debug) | |
1623 | unlink (file); | |
1624 | else | |
be2828ce | 1625 | notice ("[Leaving %s]\n", file); |
832f2315 | 1626 | } |
1627 | ||
1628 | \f | |
9bc65db1 | 1629 | static long sequence_number = 0; |
1630 | ||
832f2315 | 1631 | /* Add a name to a linked list. */ |
1632 | ||
1633 | static void | |
89a1f620 | 1634 | add_to_list (struct head *head_ptr, const char *name) |
832f2315 | 1635 | { |
f0af5a88 | 1636 | struct id *newid = xcalloc (sizeof (struct id) + strlen (name), 1); |
b821b836 | 1637 | struct id *p; |
832f2315 | 1638 | strcpy (newid->name, name); |
1639 | ||
1640 | if (head_ptr->first) | |
1641 | head_ptr->last->next = newid; | |
1642 | else | |
1643 | head_ptr->first = newid; | |
1644 | ||
b821b836 | 1645 | /* Check for duplicate symbols. */ |
1646 | for (p = head_ptr->first; | |
1647 | strcmp (name, p->name) != 0; | |
1648 | p = p->next) | |
1649 | ; | |
1650 | if (p != newid) | |
1651 | { | |
1652 | head_ptr->last->next = 0; | |
1653 | free (newid); | |
1654 | return; | |
1655 | } | |
1656 | ||
1657 | newid->sequence = ++sequence_number; | |
832f2315 | 1658 | head_ptr->last = newid; |
1659 | head_ptr->number++; | |
1660 | } | |
1661 | ||
9bc65db1 | 1662 | /* Grab the init priority number from an init function name that |
1663 | looks like "_GLOBAL_.I.12345.foo". */ | |
1664 | ||
1665 | static int | |
89a1f620 | 1666 | extract_init_priority (const char *name) |
9bc65db1 | 1667 | { |
69988048 | 1668 | int pos = 0, pri; |
9bc65db1 | 1669 | |
1670 | while (name[pos] == '_') | |
1671 | ++pos; | |
1672 | pos += 10; /* strlen ("GLOBAL__X_") */ | |
1673 | ||
2c0e001b | 1674 | /* Extract init_p number from ctor/dtor name. */ |
69988048 | 1675 | pri = atoi (name + pos); |
1676 | return pri ? pri : DEFAULT_INIT_PRIORITY; | |
9bc65db1 | 1677 | } |
1678 | ||
1679 | /* Insertion sort the ids from ctor/dtor list HEAD_PTR in descending order. | |
1680 | ctors will be run from right to left, dtors from left to right. */ | |
1681 | ||
1682 | static void | |
89a1f620 | 1683 | sort_ids (struct head *head_ptr) |
9bc65db1 | 1684 | { |
1685 | /* id holds the current element to insert. id_next holds the next | |
1686 | element to insert. id_ptr iterates through the already sorted elements | |
1687 | looking for the place to insert id. */ | |
1688 | struct id *id, *id_next, **id_ptr; | |
9bc65db1 | 1689 | |
1690 | id = head_ptr->first; | |
1691 | ||
1692 | /* We don't have any sorted elements yet. */ | |
1693 | head_ptr->first = NULL; | |
1694 | ||
1695 | for (; id; id = id_next) | |
1696 | { | |
1697 | id_next = id->next; | |
1698 | id->sequence = extract_init_priority (id->name); | |
1699 | ||
1700 | for (id_ptr = &(head_ptr->first); ; id_ptr = &((*id_ptr)->next)) | |
1701 | if (*id_ptr == NULL | |
1702 | /* If the sequence numbers are the same, we put the id from the | |
1703 | file later on the command line later in the list. */ | |
1704 | || id->sequence > (*id_ptr)->sequence | |
1705 | /* Hack: do lexical compare, too. | |
1706 | || (id->sequence == (*id_ptr)->sequence | |
1707 | && strcmp (id->name, (*id_ptr)->name) > 0) */ | |
1708 | ) | |
1709 | { | |
1710 | id->next = *id_ptr; | |
1711 | *id_ptr = id; | |
1712 | break; | |
1713 | } | |
1714 | } | |
1715 | ||
1716 | /* Now set the sequence numbers properly so write_c_file works. */ | |
1717 | for (id = head_ptr->first; id; id = id->next) | |
1718 | id->sequence = ++sequence_number; | |
1719 | } | |
1720 | ||
832f2315 | 1721 | /* Write: `prefix', the names on list LIST, `suffix'. */ |
1722 | ||
1723 | static void | |
89a1f620 | 1724 | write_list (FILE *stream, const char *prefix, struct id *list) |
832f2315 | 1725 | { |
1726 | while (list) | |
1727 | { | |
1728 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
1729 | list = list->next; | |
1730 | } | |
1731 | } | |
1732 | ||
8ae48c7c | 1733 | #if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES |
1734 | /* Given a STRING, return nonzero if it occurs in the list in range | |
1735 | [ARGS_BEGIN,ARGS_END). */ | |
1736 | ||
1737 | static int | |
89a1f620 | 1738 | is_in_args (const char *string, const char **args_begin, |
1739 | const char **args_end) | |
8ae48c7c | 1740 | { |
1741 | const char **args_pointer; | |
1742 | for (args_pointer = args_begin; args_pointer != args_end; ++args_pointer) | |
1743 | if (strcmp (string, *args_pointer) == 0) | |
1744 | return 1; | |
1745 | return 0; | |
1746 | } | |
1747 | #endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */ | |
1748 | ||
82dc74ff | 1749 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 1750 | /* This function is really used only on AIX, but may be useful. */ |
0c87a39e | 1751 | #if 0 |
d1058090 | 1752 | static int |
89a1f620 | 1753 | is_in_list (const char *prefix, struct id *list) |
d1058090 | 1754 | { |
1755 | while (list) | |
1756 | { | |
1757 | if (!strcmp (prefix, list->name)) return 1; | |
1758 | list = list->next; | |
1759 | } | |
1760 | return 0; | |
1761 | } | |
82dc74ff | 1762 | #endif |
0c87a39e | 1763 | #endif /* COLLECT_EXPORT_LIST */ |
d1058090 | 1764 | |
1765 | /* Added for debugging purpose. */ | |
0e93a6ac | 1766 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 1767 | static void |
89a1f620 | 1768 | dump_list (FILE *stream, const char *prefix, struct id *list) |
d1058090 | 1769 | { |
1770 | while (list) | |
1771 | { | |
1772 | fprintf (stream, "%s%s,\n", prefix, list->name); | |
1773 | list = list->next; | |
1774 | } | |
1775 | } | |
0e93a6ac | 1776 | #endif |
d1058090 | 1777 | |
0e93a6ac | 1778 | #if 0 |
d1058090 | 1779 | static void |
89a1f620 | 1780 | dump_prefix_list (FILE *stream, const char *prefix, struct prefix_list *list) |
d1058090 | 1781 | { |
1782 | while (list) | |
1783 | { | |
1784 | fprintf (stream, "%s%s,\n", prefix, list->prefix); | |
1785 | list = list->next; | |
1786 | } | |
1787 | } | |
0e93a6ac | 1788 | #endif |
d1058090 | 1789 | |
832f2315 | 1790 | static void |
89a1f620 | 1791 | write_list_with_asm (FILE *stream, const char *prefix, struct id *list) |
832f2315 | 1792 | { |
1793 | while (list) | |
1794 | { | |
6dd50474 | 1795 | fprintf (stream, "%sx%d __asm__ (\"%s\");\n", |
832f2315 | 1796 | prefix, list->sequence, list->name); |
1797 | list = list->next; | |
1798 | } | |
1799 | } | |
1800 | ||
b7c87ff2 | 1801 | /* Write out the constructor and destructor tables statically (for a shared |
1802 | object), along with the functions to execute them. */ | |
1803 | ||
1804 | static void | |
89a1f620 | 1805 | write_c_file_stat (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
b7c87ff2 | 1806 | { |
e504db4a | 1807 | const char *p, *q; |
1808 | char *prefix, *r; | |
d757b8c9 | 1809 | int frames = (frame_tables.number > 0); |
b7c87ff2 | 1810 | |
1811 | /* Figure out name of output_file, stripping off .so version. */ | |
78dbff7c | 1812 | p = strrchr (output_file, '/'); |
b7c87ff2 | 1813 | if (p == 0) |
e504db4a | 1814 | p = output_file; |
b7c87ff2 | 1815 | else |
1816 | p++; | |
1817 | q = p; | |
1818 | while (q) | |
1819 | { | |
78dbff7c | 1820 | q = strchr (q,'.'); |
b7c87ff2 | 1821 | if (q == 0) |
1822 | { | |
1823 | q = p + strlen (p); | |
1824 | break; | |
1825 | } | |
1826 | else | |
1827 | { | |
1828 | if (strncmp (q, ".so", 3) == 0) | |
1829 | { | |
1830 | q += 3; | |
1831 | break; | |
1832 | } | |
1833 | else | |
1834 | q++; | |
1835 | } | |
1836 | } | |
1837 | /* q points to null at end of the string (or . of the .so version) */ | |
1838 | prefix = xmalloc (q - p + 1); | |
1839 | strncpy (prefix, p, q - p); | |
1840 | prefix[q - p] = 0; | |
e504db4a | 1841 | for (r = prefix; *r; r++) |
1842 | if (!ISALNUM ((unsigned char)*r)) | |
1843 | *r = '_'; | |
b7c87ff2 | 1844 | if (debug) |
be2828ce | 1845 | notice ("\nwrite_c_file - output name is %s, prefix is %s\n", |
1846 | output_file, prefix); | |
b7c87ff2 | 1847 | |
284a7b54 | 1848 | initname = concat ("_GLOBAL__FI_", prefix, NULL); |
1849 | fininame = concat ("_GLOBAL__FD_", prefix, NULL); | |
b7c87ff2 | 1850 | |
1851 | free (prefix); | |
1852 | ||
2358393e | 1853 | /* Write the tables as C code. */ |
b7c87ff2 | 1854 | |
1855 | fprintf (stream, "static int count;\n"); | |
1856 | fprintf (stream, "typedef void entry_pt();\n"); | |
1857 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); | |
d757b8c9 | 1858 | |
1859 | if (frames) | |
1860 | { | |
1861 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
1862 | ||
1863 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
1864 | write_list (stream, "\t\t&", frame_tables.first); | |
1865 | fprintf (stream, "\t0\n};\n"); | |
1866 | ||
ad87de1e | 1867 | /* This must match what's in frame.h. */ |
1868 | fprintf (stream, "struct object {\n"); | |
1869 | fprintf (stream, " void *pc_begin;\n"); | |
1870 | fprintf (stream, " void *pc_end;\n"); | |
1871 | fprintf (stream, " void *fde_begin;\n"); | |
1872 | fprintf (stream, " void *fde_array;\n"); | |
68b88e86 | 1873 | fprintf (stream, " __SIZE_TYPE__ count;\n"); |
ad87de1e | 1874 | fprintf (stream, " struct object *next;\n"); |
1875 | fprintf (stream, "};\n"); | |
1876 | ||
c4fa4c4d | 1877 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
cd236c08 | 1878 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
d757b8c9 | 1879 | |
1880 | fprintf (stream, "static void reg_frame () {\n"); | |
ad87de1e | 1881 | fprintf (stream, "\tstatic struct object ob;\n"); |
c4fa4c4d | 1882 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
d757b8c9 | 1883 | fprintf (stream, "\t}\n"); |
1884 | ||
1885 | fprintf (stream, "static void dereg_frame () {\n"); | |
c4fa4c4d | 1886 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
d757b8c9 | 1887 | fprintf (stream, "\t}\n"); |
1888 | } | |
1889 | ||
b7c87ff2 | 1890 | fprintf (stream, "void %s() {\n", initname); |
d757b8c9 | 1891 | if (constructors.number > 0 || frames) |
b7c87ff2 | 1892 | { |
1893 | fprintf (stream, "\tstatic entry_pt *ctors[] = {\n"); | |
1894 | write_list (stream, "\t\t", constructors.first); | |
d757b8c9 | 1895 | if (frames) |
1896 | fprintf (stream, "\treg_frame,\n"); | |
b7c87ff2 | 1897 | fprintf (stream, "\t};\n"); |
1898 | fprintf (stream, "\tentry_pt **p;\n"); | |
1899 | fprintf (stream, "\tif (count++ != 0) return;\n"); | |
d757b8c9 | 1900 | fprintf (stream, "\tp = ctors + %d;\n", constructors.number + frames); |
b7c87ff2 | 1901 | fprintf (stream, "\twhile (p > ctors) (*--p)();\n"); |
1902 | } | |
661ab6cf | 1903 | else |
1904 | fprintf (stream, "\t++count;\n"); | |
b7c87ff2 | 1905 | fprintf (stream, "}\n"); |
1906 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); | |
1907 | fprintf (stream, "void %s() {\n", fininame); | |
d757b8c9 | 1908 | if (destructors.number > 0 || frames) |
b7c87ff2 | 1909 | { |
1910 | fprintf (stream, "\tstatic entry_pt *dtors[] = {\n"); | |
1911 | write_list (stream, "\t\t", destructors.first); | |
d757b8c9 | 1912 | if (frames) |
1913 | fprintf (stream, "\tdereg_frame,\n"); | |
b7c87ff2 | 1914 | fprintf (stream, "\t};\n"); |
1915 | fprintf (stream, "\tentry_pt **p;\n"); | |
1916 | fprintf (stream, "\tif (--count != 0) return;\n"); | |
1917 | fprintf (stream, "\tp = dtors;\n"); | |
1918 | fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n", | |
d757b8c9 | 1919 | destructors.number + frames); |
b7c87ff2 | 1920 | } |
1921 | fprintf (stream, "}\n"); | |
1922 | ||
661ab6cf | 1923 | if (shared_obj) |
1924 | { | |
2f9e77d1 | 1925 | COLLECT_SHARED_INIT_FUNC(stream, initname); |
1926 | COLLECT_SHARED_FINI_FUNC(stream, fininame); | |
661ab6cf | 1927 | } |
b7c87ff2 | 1928 | } |
1929 | ||
a92771b8 | 1930 | /* Write the constructor/destructor tables. */ |
832f2315 | 1931 | |
73439ee0 | 1932 | #ifndef LD_INIT_SWITCH |
832f2315 | 1933 | static void |
89a1f620 | 1934 | write_c_file_glob (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
832f2315 | 1935 | { |
2358393e | 1936 | /* Write the tables as C code. */ |
832f2315 | 1937 | |
d757b8c9 | 1938 | int frames = (frame_tables.number > 0); |
1939 | ||
832f2315 | 1940 | fprintf (stream, "typedef void entry_pt();\n\n"); |
89a1f620 | 1941 | |
77a5425a | 1942 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); |
d757b8c9 | 1943 | |
1944 | if (frames) | |
1945 | { | |
1946 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
1947 | ||
1948 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
1949 | write_list (stream, "\t\t&", frame_tables.first); | |
1950 | fprintf (stream, "\t0\n};\n"); | |
1951 | ||
285cf8b8 | 1952 | /* This must match what's in frame.h. */ |
1953 | fprintf (stream, "struct object {\n"); | |
1954 | fprintf (stream, " void *pc_begin;\n"); | |
1955 | fprintf (stream, " void *pc_end;\n"); | |
1956 | fprintf (stream, " void *fde_begin;\n"); | |
1957 | fprintf (stream, " void *fde_array;\n"); | |
1958 | fprintf (stream, " __SIZE_TYPE__ count;\n"); | |
1959 | fprintf (stream, " struct object *next;\n"); | |
1960 | fprintf (stream, "};\n"); | |
1961 | ||
c4fa4c4d | 1962 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
cd236c08 | 1963 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
d757b8c9 | 1964 | |
1965 | fprintf (stream, "static void reg_frame () {\n"); | |
285cf8b8 | 1966 | fprintf (stream, "\tstatic struct object ob;\n"); |
c4fa4c4d | 1967 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
d757b8c9 | 1968 | fprintf (stream, "\t}\n"); |
1969 | ||
1970 | fprintf (stream, "static void dereg_frame () {\n"); | |
c4fa4c4d | 1971 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
d757b8c9 | 1972 | fprintf (stream, "\t}\n"); |
1973 | } | |
1974 | ||
832f2315 | 1975 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); |
d757b8c9 | 1976 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number + frames); |
22f0924c | 1977 | write_list (stream, "\t", constructors.first); |
d757b8c9 | 1978 | if (frames) |
1979 | fprintf (stream, "\treg_frame,\n"); | |
832f2315 | 1980 | fprintf (stream, "\t0\n};\n\n"); |
1981 | ||
77a5425a | 1982 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); |
832f2315 | 1983 | |
1984 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
d757b8c9 | 1985 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number + frames); |
22f0924c | 1986 | write_list (stream, "\t", destructors.first); |
d757b8c9 | 1987 | if (frames) |
1988 | fprintf (stream, "\tdereg_frame,\n"); | |
832f2315 | 1989 | fprintf (stream, "\t0\n};\n\n"); |
1990 | ||
b0b9762f | 1991 | fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN); |
1992 | fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN); | |
832f2315 | 1993 | } |
73439ee0 | 1994 | #endif /* ! LD_INIT_SWITCH */ |
832f2315 | 1995 | |
b7c87ff2 | 1996 | static void |
89a1f620 | 1997 | write_c_file (FILE *stream, const char *name) |
b7c87ff2 | 1998 | { |
58c3cb68 | 1999 | fprintf (stream, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
661ab6cf | 2000 | #ifndef LD_INIT_SWITCH |
2001 | if (! shared_obj) | |
b7c87ff2 | 2002 | write_c_file_glob (stream, name); |
661ab6cf | 2003 | else |
2004 | #endif | |
2005 | write_c_file_stat (stream, name); | |
58c3cb68 | 2006 | fprintf (stream, "#ifdef __cplusplus\n}\n#endif\n"); |
b7c87ff2 | 2007 | } |
a9b00323 | 2008 | |
d1058090 | 2009 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 2010 | static void |
89a1f620 | 2011 | write_aix_file (FILE *stream, struct id *list) |
d1058090 | 2012 | { |
d1058090 | 2013 | for (; list; list = list->next) |
4e2fa0bf | 2014 | { |
2015 | fputs (list->name, stream); | |
2016 | putc ('\n', stream); | |
2017 | } | |
d1058090 | 2018 | } |
2019 | #endif | |
832f2315 | 2020 | \f |
22f0924c | 2021 | #ifdef OBJECT_FORMAT_NONE |
832f2315 | 2022 | |
22f0924c | 2023 | /* Generic version to scan the name list of the loaded program for |
2024 | the symbols g++ uses for static constructors and destructors. | |
832f2315 | 2025 | |
2026 | The constructor table begins at __CTOR_LIST__ and contains a count | |
2027 | of the number of pointers (or -1 if the constructors are built in a | |
2028 | separate section by the linker), followed by the pointers to the | |
2029 | constructor functions, terminated with a null pointer. The | |
2030 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
2031 | ||
2032 | static void | |
89a1f620 | 2033 | scan_prog_file (const char *prog_name, enum pass which_pass) |
832f2315 | 2034 | { |
89a1f620 | 2035 | void (*int_handler) (int); |
2036 | void (*quit_handler) (int); | |
e504db4a | 2037 | char *real_nm_argv[4]; |
2038 | const char **nm_argv = (const char **) real_nm_argv; | |
832f2315 | 2039 | int argc = 0; |
2040 | int pipe_fd[2]; | |
2041 | char *p, buf[1024]; | |
2042 | FILE *inf; | |
2043 | ||
b7c87ff2 | 2044 | if (which_pass == PASS_SECOND) |
832f2315 | 2045 | return; |
2046 | ||
d1058090 | 2047 | /* If we do not have an `nm', complain. */ |
e533c428 | 2048 | if (nm_file_name == 0) |
1e5fcbe2 | 2049 | fatal ("cannot find 'nm'"); |
e533c428 | 2050 | |
b7c87ff2 | 2051 | nm_argv[argc++] = nm_file_name; |
832f2315 | 2052 | if (NM_FLAGS[0] != '\0') |
22f0924c | 2053 | nm_argv[argc++] = NM_FLAGS; |
832f2315 | 2054 | |
22f0924c | 2055 | nm_argv[argc++] = prog_name; |
a92771b8 | 2056 | nm_argv[argc++] = (char *) 0; |
832f2315 | 2057 | |
2058 | if (pipe (pipe_fd) < 0) | |
2059 | fatal_perror ("pipe"); | |
2060 | ||
2061 | inf = fdopen (pipe_fd[0], "r"); | |
a92771b8 | 2062 | if (inf == (FILE *) 0) |
832f2315 | 2063 | fatal_perror ("fdopen"); |
2064 | ||
2065 | /* Trace if needed. */ | |
2066 | if (vflag) | |
2067 | { | |
e504db4a | 2068 | const char **p_argv; |
2069 | const char *str; | |
832f2315 | 2070 | |
a92771b8 | 2071 | for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) |
832f2315 | 2072 | fprintf (stderr, " %s", str); |
2073 | ||
2074 | fprintf (stderr, "\n"); | |
2075 | } | |
2076 | ||
2077 | fflush (stdout); | |
2078 | fflush (stderr); | |
2079 | ||
2358393e | 2080 | /* Spawn child nm on pipe. */ |
832f2315 | 2081 | pid = vfork (); |
2082 | if (pid == -1) | |
020ecb1b | 2083 | fatal_perror (VFORK_STRING); |
832f2315 | 2084 | |
2085 | if (pid == 0) /* child context */ | |
2086 | { | |
2087 | /* setup stdout */ | |
2088 | if (dup2 (pipe_fd[1], 1) < 0) | |
be2828ce | 2089 | fatal_perror ("dup2 %d 1", pipe_fd[1]); |
832f2315 | 2090 | |
2091 | if (close (pipe_fd[0]) < 0) | |
be2828ce | 2092 | fatal_perror ("close %d", pipe_fd[0]); |
832f2315 | 2093 | |
2094 | if (close (pipe_fd[1]) < 0) | |
be2828ce | 2095 | fatal_perror ("close %d", pipe_fd[1]); |
832f2315 | 2096 | |
e504db4a | 2097 | execv (nm_file_name, real_nm_argv); |
66e4b181 | 2098 | fatal_perror ("execv %s", nm_file_name); |
832f2315 | 2099 | } |
2100 | ||
2101 | /* Parent context from here on. */ | |
89a1f620 | 2102 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
3a0eb8c2 | 2103 | #ifdef SIGQUIT |
89a1f620 | 2104 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
3a0eb8c2 | 2105 | #endif |
832f2315 | 2106 | |
2107 | if (close (pipe_fd[1]) < 0) | |
be2828ce | 2108 | fatal_perror ("close %d", pipe_fd[1]); |
832f2315 | 2109 | |
2110 | if (debug) | |
2111 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); | |
2112 | ||
2113 | /* Read each line of nm output. */ | |
a92771b8 | 2114 | while (fgets (buf, sizeof buf, inf) != (char *) 0) |
832f2315 | 2115 | { |
2116 | int ch, ch2; | |
22f0924c | 2117 | char *name, *end; |
832f2315 | 2118 | |
2119 | /* If it contains a constructor or destructor name, add the name | |
a92771b8 | 2120 | to the appropriate list. */ |
832f2315 | 2121 | |
2122 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
b7c87ff2 | 2123 | if (ch == ' ' && p[1] == 'U' && p[2] == ' ') |
2124 | break; | |
832f2315 | 2125 | |
b7c87ff2 | 2126 | if (ch != '_') |
832f2315 | 2127 | continue; |
89a1f620 | 2128 | |
22f0924c | 2129 | name = p; |
2130 | /* Find the end of the symbol name. | |
d1058090 | 2131 | Do not include `|', because Encore nm can tack that on the end. */ |
cc404a47 | 2132 | for (end = p; (ch2 = *end) != '\0' && !ISSPACE (ch2) && ch2 != '|'; |
22f0924c | 2133 | end++) |
2134 | continue; | |
832f2315 | 2135 | |
6f73c4a6 | 2136 | |
832f2315 | 2137 | *end = '\0'; |
22f0924c | 2138 | switch (is_ctor_dtor (name)) |
832f2315 | 2139 | { |
22f0924c | 2140 | case 1: |
b7c87ff2 | 2141 | if (which_pass != PASS_LIB) |
2142 | add_to_list (&constructors, name); | |
22f0924c | 2143 | break; |
832f2315 | 2144 | |
22f0924c | 2145 | case 2: |
b7c87ff2 | 2146 | if (which_pass != PASS_LIB) |
2147 | add_to_list (&destructors, name); | |
2148 | break; | |
2149 | ||
2150 | case 3: | |
2151 | if (which_pass != PASS_LIB) | |
2152 | fatal ("init function found in object %s", prog_name); | |
c45f936d | 2153 | #ifndef LD_INIT_SWITCH |
b7c87ff2 | 2154 | add_to_list (&constructors, name); |
c45f936d | 2155 | #endif |
b7c87ff2 | 2156 | break; |
2157 | ||
2158 | case 4: | |
2159 | if (which_pass != PASS_LIB) | |
c45f936d | 2160 | fatal ("fini function found in object %s", prog_name); |
2161 | #ifndef LD_FINI_SWITCH | |
22f0924c | 2162 | add_to_list (&destructors, name); |
c45f936d | 2163 | #endif |
22f0924c | 2164 | break; |
832f2315 | 2165 | |
d757b8c9 | 2166 | case 5: |
2167 | if (which_pass != PASS_LIB) | |
2168 | add_to_list (&frame_tables, name); | |
c3393573 | 2169 | break; |
d757b8c9 | 2170 | |
22f0924c | 2171 | default: /* not a constructor or destructor */ |
2172 | continue; | |
832f2315 | 2173 | } |
2174 | ||
832f2315 | 2175 | if (debug) |
2176 | fprintf (stderr, "\t%s\n", buf); | |
2177 | } | |
2178 | ||
2179 | if (debug) | |
2180 | fprintf (stderr, "\n"); | |
2181 | ||
2182 | if (fclose (inf) != 0) | |
be2828ce | 2183 | fatal_perror ("fclose"); |
832f2315 | 2184 | |
2185 | do_wait (nm_file_name); | |
2186 | ||
2187 | signal (SIGINT, int_handler); | |
3a0eb8c2 | 2188 | #ifdef SIGQUIT |
832f2315 | 2189 | signal (SIGQUIT, quit_handler); |
3a0eb8c2 | 2190 | #endif |
832f2315 | 2191 | } |
2192 | ||
b7c87ff2 | 2193 | #ifdef LDD_SUFFIX |
2194 | ||
2195 | /* Use the List Dynamic Dependencies program to find shared libraries that | |
2196 | the output file depends upon and their initialization/finalization | |
2197 | routines, if any. */ | |
2198 | ||
89a1f620 | 2199 | static void |
2200 | scan_libraries (const char *prog_name) | |
b7c87ff2 | 2201 | { |
2202 | static struct head libraries; /* list of shared libraries found */ | |
2203 | struct id *list; | |
89a1f620 | 2204 | void (*int_handler) (int); |
2205 | void (*quit_handler) (int); | |
ba40f012 | 2206 | char *real_ldd_argv[4]; |
2207 | const char **ldd_argv = (const char **) real_ldd_argv; | |
b7c87ff2 | 2208 | int argc = 0; |
2209 | int pipe_fd[2]; | |
2210 | char buf[1024]; | |
2211 | FILE *inf; | |
2212 | ||
d1058090 | 2213 | /* If we do not have an `ldd', complain. */ |
b7c87ff2 | 2214 | if (ldd_file_name == 0) |
2215 | { | |
1e5fcbe2 | 2216 | error ("cannot find 'ldd'"); |
b7c87ff2 | 2217 | return; |
2218 | } | |
2219 | ||
2220 | ldd_argv[argc++] = ldd_file_name; | |
2221 | ldd_argv[argc++] = prog_name; | |
2222 | ldd_argv[argc++] = (char *) 0; | |
2223 | ||
2224 | if (pipe (pipe_fd) < 0) | |
2225 | fatal_perror ("pipe"); | |
2226 | ||
2227 | inf = fdopen (pipe_fd[0], "r"); | |
2228 | if (inf == (FILE *) 0) | |
2229 | fatal_perror ("fdopen"); | |
2230 | ||
2231 | /* Trace if needed. */ | |
2232 | if (vflag) | |
2233 | { | |
e504db4a | 2234 | const char **p_argv; |
2235 | const char *str; | |
b7c87ff2 | 2236 | |
2237 | for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) | |
2238 | fprintf (stderr, " %s", str); | |
2239 | ||
2240 | fprintf (stderr, "\n"); | |
2241 | } | |
2242 | ||
2243 | fflush (stdout); | |
2244 | fflush (stderr); | |
2245 | ||
2358393e | 2246 | /* Spawn child ldd on pipe. */ |
b7c87ff2 | 2247 | pid = vfork (); |
2248 | if (pid == -1) | |
020ecb1b | 2249 | fatal_perror (VFORK_STRING); |
b7c87ff2 | 2250 | |
2251 | if (pid == 0) /* child context */ | |
2252 | { | |
2253 | /* setup stdout */ | |
2254 | if (dup2 (pipe_fd[1], 1) < 0) | |
be2828ce | 2255 | fatal_perror ("dup2 %d 1", pipe_fd[1]); |
b7c87ff2 | 2256 | |
2257 | if (close (pipe_fd[0]) < 0) | |
be2828ce | 2258 | fatal_perror ("close %d", pipe_fd[0]); |
b7c87ff2 | 2259 | |
2260 | if (close (pipe_fd[1]) < 0) | |
be2828ce | 2261 | fatal_perror ("close %d", pipe_fd[1]); |
b7c87ff2 | 2262 | |
e504db4a | 2263 | execv (ldd_file_name, real_ldd_argv); |
be2828ce | 2264 | fatal_perror ("execv %s", ldd_file_name); |
b7c87ff2 | 2265 | } |
2266 | ||
2267 | /* Parent context from here on. */ | |
5b6b3be8 | 2268 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
b7c87ff2 | 2269 | #ifdef SIGQUIT |
5b6b3be8 | 2270 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
b7c87ff2 | 2271 | #endif |
2272 | ||
2273 | if (close (pipe_fd[1]) < 0) | |
be2828ce | 2274 | fatal_perror ("close %d", pipe_fd[1]); |
b7c87ff2 | 2275 | |
2276 | if (debug) | |
be2828ce | 2277 | notice ("\nldd output with constructors/destructors.\n"); |
b7c87ff2 | 2278 | |
2279 | /* Read each line of ldd output. */ | |
2280 | while (fgets (buf, sizeof buf, inf) != (char *) 0) | |
2281 | { | |
0f2b564d | 2282 | int ch2; |
b7c87ff2 | 2283 | char *name, *end, *p = buf; |
2284 | ||
a92771b8 | 2285 | /* Extract names of libraries and add to list. */ |
b7c87ff2 | 2286 | PARSE_LDD_OUTPUT (p); |
2287 | if (p == 0) | |
2288 | continue; | |
2289 | ||
2290 | name = p; | |
2291 | if (strncmp (name, "not found", sizeof ("not found") - 1) == 0) | |
2292 | fatal ("dynamic dependency %s not found", buf); | |
2293 | ||
a92771b8 | 2294 | /* Find the end of the symbol name. */ |
89a1f620 | 2295 | for (end = p; |
cc404a47 | 2296 | (ch2 = *end) != '\0' && ch2 != '\n' && !ISSPACE (ch2) && ch2 != '|'; |
b7c87ff2 | 2297 | end++) |
2298 | continue; | |
2299 | *end = '\0'; | |
2300 | ||
2301 | if (access (name, R_OK) == 0) | |
2302 | add_to_list (&libraries, name); | |
2303 | else | |
2304 | fatal ("unable to open dynamic dependency '%s'", buf); | |
2305 | ||
2306 | if (debug) | |
2307 | fprintf (stderr, "\t%s\n", buf); | |
2308 | } | |
2309 | if (debug) | |
2310 | fprintf (stderr, "\n"); | |
2311 | ||
2312 | if (fclose (inf) != 0) | |
be2828ce | 2313 | fatal_perror ("fclose"); |
b7c87ff2 | 2314 | |
2315 | do_wait (ldd_file_name); | |
2316 | ||
2317 | signal (SIGINT, int_handler); | |
2318 | #ifdef SIGQUIT | |
2319 | signal (SIGQUIT, quit_handler); | |
2320 | #endif | |
2321 | ||
21dda4ee | 2322 | /* Now iterate through the library list adding their symbols to |
b7c87ff2 | 2323 | the list. */ |
2324 | for (list = libraries.first; list; list = list->next) | |
2325 | scan_prog_file (list->name, PASS_LIB); | |
2326 | } | |
2327 | ||
2328 | #endif /* LDD_SUFFIX */ | |
b7c87ff2 | 2329 | |
22f0924c | 2330 | #endif /* OBJECT_FORMAT_NONE */ |
2331 | ||
2332 | \f | |
2333 | /* | |
2334 | * COFF specific stuff. | |
2335 | */ | |
2336 | ||
2337 | #ifdef OBJECT_FORMAT_COFF | |
2338 | ||
8ddac116 | 2339 | #if defined (EXTENDED_COFF) |
c8b793cf | 2340 | |
77a5425a | 2341 | # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax) |
2342 | # define GCC_SYMENT SYMR | |
c3393573 | 2343 | # define GCC_OK_SYMBOL(X) ((X).st == stProc || (X).st == stGlobal) |
77a5425a | 2344 | # define GCC_SYMINC(X) (1) |
2345 | # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax) | |
2346 | # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0) | |
c8b793cf | 2347 | |
22f0924c | 2348 | #else |
c8b793cf | 2349 | |
77a5425a | 2350 | # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms) |
2351 | # define GCC_SYMENT SYMENT | |
8ddac116 | 2352 | # if defined (C_WEAKEXT) |
2353 | # define GCC_OK_SYMBOL(X) \ | |
2354 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
2355 | ((X).n_scnum > N_UNDEF) && \ | |
2356 | (aix64_flag \ | |
2357 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2358 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
2359 | # define GCC_UNDEF_SYMBOL(X) \ | |
2360 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
2361 | ((X).n_scnum == N_UNDEF)) | |
2362 | # else | |
2363 | # define GCC_OK_SYMBOL(X) \ | |
2364 | (((X).n_sclass == C_EXT) && \ | |
2365 | ((X).n_scnum > N_UNDEF) && \ | |
2366 | (aix64_flag \ | |
2367 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2368 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
2369 | # define GCC_UNDEF_SYMBOL(X) \ | |
2370 | (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF)) | |
2371 | # endif | |
77a5425a | 2372 | # define GCC_SYMINC(X) ((X).n_numaux+1) |
2373 | # define GCC_SYMZERO(X) 0 | |
c8b793cf | 2374 | |
2375 | /* 0757 = U803XTOCMAGIC (AIX 4.3) and 0767 = U64_TOCMAGIC (AIX V5) */ | |
2376 | #ifdef _AIX51 | |
2377 | # define GCC_CHECK_HDR(X) \ | |
2378 | ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ | |
2379 | || (HEADER (X).f_magic == 0767 && aix64_flag)) | |
2380 | #else | |
9ae139a2 | 2381 | # define GCC_CHECK_HDR(X) \ |
2382 | ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ | |
2383 | || (HEADER (X).f_magic == 0757 && aix64_flag)) | |
22f0924c | 2384 | #endif |
2385 | ||
c8b793cf | 2386 | #endif |
2387 | ||
805e22b2 | 2388 | #ifdef COLLECT_EXPORT_LIST |
2389 | /* Array of standard AIX libraries which should not | |
2390 | be scanned for ctors/dtors. */ | |
2391 | static const char *const aix_std_libs[] = { | |
2392 | "/unix", | |
2393 | "/lib/libc.a", | |
2394 | "/lib/libm.a", | |
2395 | "/lib/libc_r.a", | |
2396 | "/lib/libm_r.a", | |
2397 | "/usr/lib/libc.a", | |
2398 | "/usr/lib/libm.a", | |
2399 | "/usr/lib/libc_r.a", | |
2400 | "/usr/lib/libm_r.a", | |
2401 | "/usr/lib/threads/libc.a", | |
2402 | "/usr/ccs/lib/libc.a", | |
2403 | "/usr/ccs/lib/libm.a", | |
2404 | "/usr/ccs/lib/libc_r.a", | |
2405 | "/usr/ccs/lib/libm_r.a", | |
2406 | NULL | |
2407 | }; | |
2408 | ||
2409 | /* This function checks the filename and returns 1 | |
2410 | if this name matches the location of a standard AIX library. */ | |
89a1f620 | 2411 | static int ignore_library (const char *); |
805e22b2 | 2412 | static int |
89a1f620 | 2413 | ignore_library (const char *name) |
805e22b2 | 2414 | { |
2415 | const char *const *p = &aix_std_libs[0]; | |
2416 | while (*p++ != NULL) | |
2417 | if (! strcmp (name, *p)) return 1; | |
2418 | return 0; | |
2419 | } | |
2420 | #endif /* COLLECT_EXPORT_LIST */ | |
2421 | ||
31a83412 | 2422 | #if defined (HAVE_DECL_LDGETNAME) && !HAVE_DECL_LDGETNAME |
89a1f620 | 2423 | extern char *ldgetname (LDFILE *, GCC_SYMENT *); |
31a83412 | 2424 | #endif |
22f0924c | 2425 | |
2426 | /* COFF version to scan the name list of the loaded program for | |
2427 | the symbols g++ uses for static constructors and destructors. | |
2428 | ||
2429 | The constructor table begins at __CTOR_LIST__ and contains a count | |
2430 | of the number of pointers (or -1 if the constructors are built in a | |
2431 | separate section by the linker), followed by the pointers to the | |
2432 | constructor functions, terminated with a null pointer. The | |
2433 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
2434 | ||
2435 | static void | |
89a1f620 | 2436 | scan_prog_file (const char *prog_name, enum pass which_pass) |
22f0924c | 2437 | { |
f64f3678 | 2438 | LDFILE *ldptr = NULL; |
22f0924c | 2439 | int sym_index, sym_count; |
d1058090 | 2440 | int is_shared = 0; |
22f0924c | 2441 | |
a9b00323 | 2442 | if (which_pass != PASS_FIRST && which_pass != PASS_OBJ) |
22f0924c | 2443 | return; |
2444 | ||
d1058090 | 2445 | #ifdef COLLECT_EXPORT_LIST |
2446 | /* We do not need scanning for some standard C libraries. */ | |
2447 | if (which_pass == PASS_FIRST && ignore_library (prog_name)) | |
2448 | return; | |
22f0924c | 2449 | |
d1058090 | 2450 | /* On AIX we have a loop, because there is not much difference |
2451 | between an object and an archive. This trick allows us to | |
2452 | eliminate scan_libraries() function. */ | |
2453 | do | |
22f0924c | 2454 | { |
d1058090 | 2455 | #endif |
e504db4a | 2456 | /* Some platforms (e.g. OSF4) declare ldopen as taking a |
2457 | non-const char * filename parameter, even though it will not | |
2458 | modify that string. So we must cast away const-ness here, | |
2459 | which will cause -Wcast-qual to burp. */ | |
2460 | if ((ldptr = ldopen ((char *)prog_name, ldptr)) != NULL) | |
77a5425a | 2461 | { |
9ae139a2 | 2462 | if (! MY_ISCOFF (HEADER (ldptr).f_magic)) |
d1058090 | 2463 | fatal ("%s: not a COFF file", prog_name); |
22f0924c | 2464 | |
d1058090 | 2465 | if (GCC_CHECK_HDR (ldptr)) |
77a5425a | 2466 | { |
d1058090 | 2467 | sym_count = GCC_SYMBOLS (ldptr); |
2468 | sym_index = GCC_SYMZERO (ldptr); | |
9ae139a2 | 2469 | |
2470 | #ifdef COLLECT_EXPORT_LIST | |
2471 | /* Is current archive member a shared object? */ | |
2472 | is_shared = HEADER (ldptr).f_flags & F_SHROBJ; | |
2473 | #endif | |
2474 | ||
d1058090 | 2475 | while (sym_index < sym_count) |
2476 | { | |
2477 | GCC_SYMENT symbol; | |
2478 | ||
2479 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) | |
2480 | break; | |
2481 | sym_index += GCC_SYMINC (symbol); | |
2482 | ||
2483 | if (GCC_OK_SYMBOL (symbol)) | |
2484 | { | |
2485 | char *name; | |
22f0924c | 2486 | |
d1058090 | 2487 | if ((name = ldgetname (ldptr, &symbol)) == NULL) |
21dda4ee | 2488 | continue; /* Should never happen. */ |
22f0924c | 2489 | |
a9b00323 | 2490 | #ifdef XCOFF_DEBUGGING_INFO |
d1058090 | 2491 | /* All AIX function names have a duplicate entry |
2492 | beginning with a dot. */ | |
2493 | if (*name == '.') | |
2494 | ++name; | |
22f0924c | 2495 | #endif |
2496 | ||
d1058090 | 2497 | switch (is_ctor_dtor (name)) |
2498 | { | |
2499 | case 1: | |
a737f54e | 2500 | if (! is_shared) |
2501 | add_to_list (&constructors, name); | |
d3cef9f8 | 2502 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d1058090 | 2503 | if (which_pass == PASS_OBJ) |
2504 | add_to_list (&exports, name); | |
d1058090 | 2505 | #endif |
2506 | break; | |
2507 | ||
2508 | case 2: | |
a737f54e | 2509 | if (! is_shared) |
2510 | add_to_list (&destructors, name); | |
d3cef9f8 | 2511 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d1058090 | 2512 | if (which_pass == PASS_OBJ) |
2513 | add_to_list (&exports, name); | |
d1058090 | 2514 | #endif |
2515 | break; | |
2516 | ||
2517 | #ifdef COLLECT_EXPORT_LIST | |
2518 | case 3: | |
a737f54e | 2519 | #ifndef LD_INIT_SWITCH |
d1058090 | 2520 | if (is_shared) |
2521 | add_to_list (&constructors, name); | |
a737f54e | 2522 | #endif |
d1058090 | 2523 | break; |
2524 | ||
2525 | case 4: | |
a737f54e | 2526 | #ifndef LD_INIT_SWITCH |
d1058090 | 2527 | if (is_shared) |
2528 | add_to_list (&destructors, name); | |
a737f54e | 2529 | #endif |
d1058090 | 2530 | break; |
2531 | #endif | |
2532 | ||
c3393573 | 2533 | case 5: |
2534 | if (! is_shared) | |
2535 | add_to_list (&frame_tables, name); | |
d3cef9f8 | 2536 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d14933cf | 2537 | if (which_pass == PASS_OBJ) |
2538 | add_to_list (&exports, name); | |
d14933cf | 2539 | #endif |
c3393573 | 2540 | break; |
2541 | ||
d1058090 | 2542 | default: /* not a constructor or destructor */ |
2543 | #ifdef COLLECT_EXPORT_LIST | |
d3cef9f8 | 2544 | /* Explicitly export all global symbols when |
2545 | building a shared object on AIX, but do not | |
2546 | re-export symbols from another shared object | |
2547 | and do not export symbols if the user | |
2548 | provides an explicit export list. */ | |
2549 | if (shared_obj && !is_shared | |
2550 | && which_pass == PASS_OBJ && !export_flag) | |
2551 | add_to_list (&exports, name); | |
d1058090 | 2552 | #endif |
2553 | continue; | |
2554 | } | |
22f0924c | 2555 | |
d1058090 | 2556 | if (debug) |
a737f54e | 2557 | #if !defined(EXTENDED_COFF) |
d1058090 | 2558 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", |
2559 | symbol.n_scnum, symbol.n_sclass, | |
2560 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
2561 | name); | |
22f0924c | 2562 | #else |
d1058090 | 2563 | fprintf (stderr, |
ad6c9a58 | 2564 | "\tiss = %5d, value = %5ld, index = %5d, name = %s\n", |
2565 | symbol.iss, (long) symbol.value, symbol.index, name); | |
d1058090 | 2566 | #endif |
2567 | } | |
d1058090 | 2568 | } |
77a5425a | 2569 | } |
9ae139a2 | 2570 | #ifdef COLLECT_EXPORT_LIST |
2571 | else | |
2572 | { | |
2573 | /* If archive contains both 32-bit and 64-bit objects, | |
2574 | we want to skip objects in other mode so mismatch normal. */ | |
2575 | if (debug) | |
2576 | fprintf (stderr, "%s : magic=%o aix64=%d mismatch\n", | |
2577 | prog_name, HEADER (ldptr).f_magic, aix64_flag); | |
2578 | } | |
2579 | #endif | |
22f0924c | 2580 | } |
d1058090 | 2581 | else |
2582 | { | |
2583 | fatal ("%s: cannot open as COFF file", prog_name); | |
2584 | } | |
2585 | #ifdef COLLECT_EXPORT_LIST | |
2586 | /* On AIX loop continues while there are more members in archive. */ | |
22f0924c | 2587 | } |
d1058090 | 2588 | while (ldclose (ldptr) == FAILURE); |
2589 | #else | |
2590 | /* Otherwise we simply close ldptr. */ | |
22f0924c | 2591 | (void) ldclose(ldptr); |
d1058090 | 2592 | #endif |
22f0924c | 2593 | } |
02159c3f | 2594 | #endif /* OBJECT_FORMAT_COFF */ |
97d49287 | 2595 | |
d1058090 | 2596 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 2597 | /* Given a library name without "lib" prefix, this function |
2598 | returns a full library name including a path. */ | |
2599 | static char * | |
89a1f620 | 2600 | resolve_lib_name (const char *name) |
d1058090 | 2601 | { |
2602 | char *lib_buf; | |
2603 | int i, j, l = 0; | |
07090bac | 2604 | /* Library extensions for AIX dynamic linking. */ |
2605 | const char * const libexts[2] = {"a", "so"}; | |
f2156a9c | 2606 | |
d1058090 | 2607 | for (i = 0; libpaths[i]; i++) |
2608 | if (libpaths[i]->max_len > l) | |
2609 | l = libpaths[i]->max_len; | |
2610 | ||
2611 | lib_buf = xmalloc (l + strlen(name) + 10); | |
2612 | ||
2613 | for (i = 0; libpaths[i]; i++) | |
2614 | { | |
2615 | struct prefix_list *list = libpaths[i]->plist; | |
2616 | for (; list; list = list->next) | |
2617 | { | |
ba21f363 | 2618 | /* The following lines are needed because path_prefix list |
2619 | may contain directories both with trailing '/' and | |
2620 | without it. */ | |
2621 | const char *p = ""; | |
2622 | if (list->prefix[strlen(list->prefix)-1] != '/') | |
2623 | p = "/"; | |
07090bac | 2624 | for (j = 0; j < 2; j++) |
97d49287 | 2625 | { |
89a1f620 | 2626 | sprintf (lib_buf, "%s%slib%s.%s", |
07090bac | 2627 | list->prefix, p, name, |
2628 | libexts[(j + aixrtl_flag) % 2]); | |
2629 | if (debug) fprintf (stderr, "searching for: %s\n", lib_buf); | |
d1058090 | 2630 | if (file_exists (lib_buf)) |
97d49287 | 2631 | { |
07090bac | 2632 | if (debug) fprintf (stderr, "found: %s\n", lib_buf); |
d1058090 | 2633 | return (lib_buf); |
97d49287 | 2634 | } |
97d49287 | 2635 | } |
97d49287 | 2636 | } |
2637 | } | |
d1058090 | 2638 | if (debug) |
2639 | fprintf (stderr, "not found\n"); | |
2640 | else | |
cb8bacb6 | 2641 | fatal ("library lib%s not found", name); |
d1058090 | 2642 | return (NULL); |
2643 | } | |
02159c3f | 2644 | #endif /* COLLECT_EXPORT_LIST */ |