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Commit | Line | Data |
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1c84128d RK |
1 | /* Collect static initialization info into data structures that can be |
2 | traversed by C++ initialization and finalization routines. | |
8d9254fc | 3 | Copyright (C) 1992-2020 Free Software Foundation, Inc. |
4e81a331 | 4 | Contributed by Chris Smith (csmith@convex.com). |
96317659 | 5 | Heavily modified by Michael Meissner (meissner@cygnus.com), |
4e81a331 RS |
6 | Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com). |
7 | ||
1322177d | 8 | This file is part of GCC. |
4e81a331 | 9 | |
1322177d LB |
10 | GCC is free software; you can redistribute it and/or modify it under |
11 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 12 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 13 | version. |
4e81a331 | 14 | |
1322177d LB |
15 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
16 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
18 | for more details. | |
4e81a331 RS |
19 | |
20 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
21 | along with GCC; see the file COPYING3. If not see |
22 | <http://www.gnu.org/licenses/>. */ | |
4e81a331 RS |
23 | |
24 | ||
0f41302f | 25 | /* Build tables of static constructors and destructors and run ld. */ |
4e81a331 | 26 | |
c102bba0 | 27 | #include "config.h" |
670ee920 | 28 | #include "system.h" |
4977bab6 ZW |
29 | #include "coretypes.h" |
30 | #include "tm.h" | |
ba78087b | 31 | #include "filenames.h" |
c2a73de2 | 32 | #include "file-find.h" |
4098a6d4 IS |
33 | #include "simple-object.h" |
34 | #include "lto-section-names.h" | |
4e81a331 | 35 | |
ad211091 KT |
36 | /* TARGET_64BIT may be defined to use driver specific functionality. */ |
37 | #undef TARGET_64BIT | |
38 | #define TARGET_64BIT TARGET_64BIT_DEFAULT | |
39 | ||
512b62fb JM |
40 | #ifndef LIBRARY_PATH_ENV |
41 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
42 | #endif | |
43 | ||
c102bba0 RK |
44 | #define COLLECT |
45 | ||
2edfd4ee | 46 | #include "collect2.h" |
dfb636dc | 47 | #include "collect2-aix.h" |
5f0ad6a5 | 48 | #include "collect-utils.h" |
9e350e99 | 49 | #include "diagnostic.h" |
c102bba0 RK |
50 | #include "demangle.h" |
51 | #include "obstack.h" | |
ab87f8c8 | 52 | #include "intl.h" |
9f8f4efe | 53 | #include "version.h" |
ed5b9462 RS |
54 | \f |
55 | /* On certain systems, we have code that works by scanning the object file | |
56 | directly. But this code uses system-specific header files and library | |
bb59f9a6 | 57 | functions, so turn it off in a cross-compiler. Likewise, the names of |
db126753 | 58 | the utilities are not correct for a cross-compiler; we have to hope that |
bb59f9a6 | 59 | cross-versions are in the proper directories. */ |
ed5b9462 | 60 | |
2989d30c | 61 | #ifdef CROSS_DIRECTORY_STRUCTURE |
dfb636dc | 62 | #ifndef CROSS_AIX_SUPPORT |
ed5b9462 | 63 | #undef OBJECT_FORMAT_COFF |
dfb636dc | 64 | #endif |
bb59f9a6 RS |
65 | #undef MD_EXEC_PREFIX |
66 | #undef REAL_LD_FILE_NAME | |
67 | #undef REAL_NM_FILE_NAME | |
68 | #undef REAL_STRIP_FILE_NAME | |
ed5b9462 RS |
69 | #endif |
70 | ||
db126753 | 71 | /* If we cannot use a special method, use the ordinary one: |
ed5b9462 RS |
72 | run nm to find what symbols are present. |
73 | In a cross-compiler, this means you need a cross nm, | |
db126753 | 74 | but that is not quite as unpleasant as special headers. */ |
ed5b9462 | 75 | |
4a023207 | 76 | #if !defined (OBJECT_FORMAT_COFF) |
ed5b9462 RS |
77 | #define OBJECT_FORMAT_NONE |
78 | #endif | |
79 | ||
80 | #ifdef OBJECT_FORMAT_COFF | |
81 | ||
dfb636dc | 82 | #ifndef CROSS_DIRECTORY_STRUCTURE |
ed5b9462 RS |
83 | #include <a.out.h> |
84 | #include <ar.h> | |
85 | ||
86 | #ifdef UMAX | |
87 | #include <sgs.h> | |
88 | #endif | |
89 | ||
033ba47c RS |
90 | /* Many versions of ldfcn.h define these. */ |
91 | #ifdef FREAD | |
ed5b9462 RS |
92 | #undef FREAD |
93 | #undef FWRITE | |
94 | #endif | |
95 | ||
96 | #include <ldfcn.h> | |
dfb636dc | 97 | #endif |
ed5b9462 | 98 | |
7243ba7d RK |
99 | /* Some systems have an ISCOFF macro, but others do not. In some cases |
100 | the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines | |
159b3be1 | 101 | that either do not have an ISCOFF macro in /usr/include or for those |
7243ba7d RK |
102 | where it is wrong. */ |
103 | ||
e99467d2 RS |
104 | #ifndef MY_ISCOFF |
105 | #define MY_ISCOFF(X) ISCOFF (X) | |
106 | #endif | |
107 | ||
ed5b9462 RS |
108 | #endif /* OBJECT_FORMAT_COFF */ |
109 | ||
ed5b9462 RS |
110 | #ifdef OBJECT_FORMAT_NONE |
111 | ||
4e81a331 RS |
112 | /* Default flags to pass to nm. */ |
113 | #ifndef NM_FLAGS | |
2ce3c6c6 | 114 | #define NM_FLAGS "-n" |
4e81a331 RS |
115 | #endif |
116 | ||
ed5b9462 | 117 | #endif /* OBJECT_FORMAT_NONE */ |
d6cf3187 RS |
118 | |
119 | /* Some systems use __main in a way incompatible with its use in gcc, in these | |
120 | cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to | |
77bbd421 | 121 | give the same symbol without quotes for an alternative entry point. */ |
d6cf3187 RS |
122 | #ifndef NAME__MAIN |
123 | #define NAME__MAIN "__main" | |
d6cf3187 RS |
124 | #endif |
125 | ||
6f87c7d8 JM |
126 | /* This must match tree.h. */ |
127 | #define DEFAULT_INIT_PRIORITY 65535 | |
128 | ||
414e05cf RE |
129 | #ifndef COLLECT_SHARED_INIT_FUNC |
130 | #define COLLECT_SHARED_INIT_FUNC(STREAM, FUNC) \ | |
131 | fprintf ((STREAM), "void _GLOBAL__DI() {\n\t%s();\n}\n", (FUNC)) | |
132 | #endif | |
133 | #ifndef COLLECT_SHARED_FINI_FUNC | |
134 | #define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \ | |
135 | fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC)) | |
136 | #endif | |
137 | ||
9acd4a03 | 138 | #ifdef LDD_SUFFIX |
68d69835 JM |
139 | #define SCAN_LIBRARIES |
140 | #endif | |
a3184468 | 141 | |
881466d8 JDA |
142 | #ifndef SHLIB_SUFFIX |
143 | #define SHLIB_SUFFIX ".so" | |
144 | #endif | |
145 | ||
a3184468 JM |
146 | #ifdef USE_COLLECT2 |
147 | int do_collecting = 1; | |
148 | #else | |
149 | int do_collecting = 0; | |
150 | #endif | |
84db136d | 151 | |
7e49a4b3 OH |
152 | /* Cook up an always defined indication of whether we proceed the |
153 | "EXPORT_LIST" way. */ | |
154 | ||
155 | #ifdef COLLECT_EXPORT_LIST | |
156 | #define DO_COLLECT_EXPORT_LIST 1 | |
157 | #else | |
158 | #define DO_COLLECT_EXPORT_LIST 0 | |
159 | #endif | |
160 | ||
84db136d JM |
161 | /* Nonzero if we should suppress the automatic demangling of identifiers |
162 | in linker error messages. Set from COLLECT_NO_DEMANGLE. */ | |
163 | int no_demangle; | |
4e81a331 | 164 | \f |
0f41302f | 165 | /* Linked lists of constructor and destructor names. */ |
4e81a331 | 166 | |
159b3be1 | 167 | struct id |
4e81a331 RS |
168 | { |
169 | struct id *next; | |
170 | int sequence; | |
171 | char name[1]; | |
172 | }; | |
173 | ||
174 | struct head | |
175 | { | |
176 | struct id *first; | |
177 | struct id *last; | |
178 | int number; | |
179 | }; | |
180 | ||
4e81a331 | 181 | static int rflag; /* true if -r */ |
a87104d9 | 182 | static int strip_flag; /* true if -s */ |
db126753 DE |
183 | #ifdef COLLECT_EXPORT_LIST |
184 | static int export_flag; /* true if -bE */ | |
f5e04914 | 185 | static int aix64_flag; /* true if -b64 */ |
7142ae77 | 186 | static int aixrtl_flag; /* true if -brtl */ |
44178879 | 187 | static int aixlazy_flag; /* true if -blazy */ |
db126753 | 188 | #endif |
4e81a331 | 189 | |
d7f09764 DN |
190 | enum lto_mode_d { |
191 | LTO_MODE_NONE, /* Not doing LTO. */ | |
192 | LTO_MODE_LTO, /* Normal LTO. */ | |
193 | LTO_MODE_WHOPR /* WHOPR. */ | |
194 | }; | |
195 | ||
196 | /* Current LTO mode. */ | |
f3ba16d0 RB |
197 | #ifdef ENABLE_LTO |
198 | static enum lto_mode_d lto_mode = LTO_MODE_WHOPR; | |
199 | #else | |
d7f09764 | 200 | static enum lto_mode_d lto_mode = LTO_MODE_NONE; |
f3ba16d0 | 201 | #endif |
d7f09764 | 202 | |
7c6d86cc | 203 | bool helpflag; /* true if --help */ |
4e81a331 | 204 | |
c22cacf3 | 205 | static int shared_obj; /* true if -shared */ |
6a513e2a | 206 | static int static_obj; /* true if -static */ |
68d69835 | 207 | |
73d53120 BE |
208 | static const char *c_file; /* <xxx>.c for constructor/destructor list. */ |
209 | static const char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
db126753 | 210 | #ifdef COLLECT_EXPORT_LIST |
c22cacf3 | 211 | static const char *export_file; /* <xxx>.x for AIX export list. */ |
db126753 | 212 | #endif |
d7f09764 | 213 | static char **lto_o_files; /* Output files for LTO. */ |
d4058195 KG |
214 | static const char *output_file; /* Output file for ld. */ |
215 | static const char *nm_file_name; /* pathname of nm */ | |
84bc3b4f | 216 | #ifdef LDD_SUFFIX |
d4058195 | 217 | static const char *ldd_file_name; /* pathname of ldd (or equivalent) */ |
84bc3b4f | 218 | #endif |
d4058195 | 219 | static const char *strip_file_name; /* pathname of strip */ |
c22cacf3 | 220 | const char *c_file_name; /* pathname of gcc */ |
cbbbd917 | 221 | static char *initname, *fininame; /* names of init and fini funcs */ |
4e81a331 | 222 | |
44178879 DE |
223 | |
224 | #ifdef TARGET_AIX_VERSION | |
225 | static char *aix_shared_initname; | |
226 | static char *aix_shared_fininame; /* init/fini names as per the scheme | |
227 | described in config/rs6000/aix.h */ | |
228 | #endif | |
229 | ||
4e81a331 RS |
230 | static struct head constructors; /* list of constructors found */ |
231 | static struct head destructors; /* list of destructors found */ | |
db126753 | 232 | #ifdef COLLECT_EXPORT_LIST |
cbbbd917 | 233 | static struct head exports; /* list of exported symbols */ |
db126753 | 234 | #endif |
0021b564 | 235 | static struct head frame_tables; /* list of frame unwind info tables */ |
4e81a331 | 236 | |
5f0ad6a5 | 237 | bool at_file_supplied; /* Whether to use @file arguments */ |
2091ff66 | 238 | |
a3184468 | 239 | struct obstack temporary_obstack; |
a3184468 JM |
240 | char * temporary_firstobj; |
241 | ||
781a1758 RS |
242 | /* A string that must be prepended to a target OS path in order to find |
243 | it on the host system. */ | |
244 | #ifdef TARGET_SYSTEM_ROOT | |
245 | static const char *target_system_root = TARGET_SYSTEM_ROOT; | |
246 | #else | |
247 | static const char *target_system_root = ""; | |
248 | #endif | |
249 | ||
9178a345 OH |
250 | /* Whether we may unlink the output file, which should be set as soon as we |
251 | know we have successfully produced it. This is typically useful to prevent | |
252 | blindly attempting to unlink a read-only output that the target linker | |
253 | would leave untouched. */ | |
254 | bool may_unlink_output_file = false; | |
255 | ||
db126753 | 256 | #ifdef COLLECT_EXPORT_LIST |
ec5c56db | 257 | /* Lists to keep libraries to be scanned for global constructors/destructors. */ |
db126753 | 258 | static struct head libs; /* list of libraries */ |
6a513e2a | 259 | static struct head static_libs; /* list of statically linked libraries */ |
db126753 DE |
260 | static struct path_prefix cmdline_lib_dirs; /* directories specified with -L */ |
261 | static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */ | |
262 | static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs, | |
263 | &libpath_lib_dirs, NULL}; | |
db126753 DE |
264 | #endif |
265 | ||
d7f09764 DN |
266 | /* List of names of object files containing LTO information. |
267 | These are a subset of the object file names appearing on the | |
268 | command line, and must be identical, in the sense of pointer | |
269 | equality, with the names passed to maybe_run_lto_and_relink(). */ | |
270 | ||
271 | struct lto_object | |
272 | { | |
273 | const char *name; /* Name of object file. */ | |
274 | struct lto_object *next; /* Next in linked list. */ | |
275 | }; | |
276 | ||
277 | struct lto_object_list | |
278 | { | |
279 | struct lto_object *first; /* First list element. */ | |
280 | struct lto_object *last; /* Last list element. */ | |
281 | }; | |
282 | ||
283 | static struct lto_object_list lto_objects; | |
284 | ||
4326ea40 OH |
285 | /* Special kinds of symbols that a name may denote. */ |
286 | ||
a79683d5 | 287 | enum symkind { |
4326ea40 OH |
288 | SYM_REGULAR = 0, /* nothing special */ |
289 | ||
290 | SYM_CTOR = 1, /* constructor */ | |
291 | SYM_DTOR = 2, /* destructor */ | |
292 | SYM_INIT = 3, /* shared object routine that calls all the ctors */ | |
293 | SYM_FINI = 4, /* shared object routine that calls all the dtors */ | |
44178879 DE |
294 | SYM_DWEH = 5, /* DWARF exception handling table */ |
295 | SYM_AIXI = 6, | |
296 | SYM_AIXD = 7 | |
a79683d5 | 297 | }; |
4326ea40 | 298 | |
5f0ad6a5 BS |
299 | const char tool_name[] = "collect2"; |
300 | ||
4326ea40 OH |
301 | static symkind is_ctor_dtor (const char *); |
302 | ||
159b3be1 | 303 | static void handler (int); |
d7f09764 | 304 | static void maybe_unlink_list (char **); |
159b3be1 AJ |
305 | static void add_to_list (struct head *, const char *); |
306 | static int extract_init_priority (const char *); | |
307 | static void sort_ids (struct head *); | |
308 | static void write_list (FILE *, const char *, struct id *); | |
487a6e06 | 309 | #ifdef COLLECT_EXPORT_LIST |
159b3be1 | 310 | static void dump_list (FILE *, const char *, struct id *); |
487a6e06 KG |
311 | #endif |
312 | #if 0 | |
159b3be1 | 313 | static void dump_prefix_list (FILE *, const char *, struct prefix_list *); |
d4058195 | 314 | #endif |
159b3be1 AJ |
315 | static void write_list_with_asm (FILE *, const char *, struct id *); |
316 | static void write_c_file (FILE *, const char *); | |
317 | static void write_c_file_stat (FILE *, const char *); | |
d4058195 | 318 | #ifndef LD_INIT_SWITCH |
159b3be1 | 319 | static void write_c_file_glob (FILE *, const char *); |
487a6e06 | 320 | #endif |
1d300e19 | 321 | #ifdef SCAN_LIBRARIES |
159b3be1 | 322 | static void scan_libraries (const char *); |
1d300e19 | 323 | #endif |
db126753 | 324 | #ifdef COLLECT_EXPORT_LIST |
159b3be1 | 325 | static int is_in_list (const char *, struct id *); |
159b3be1 AJ |
326 | static void write_aix_file (FILE *, struct id *); |
327 | static char *resolve_lib_name (const char *); | |
db126753 | 328 | #endif |
159b3be1 | 329 | static char *extract_string (const char **); |
11afe8e8 MS |
330 | static void post_ld_pass (bool); |
331 | static void process_args (int *argcp, char **argv); | |
7e49a4b3 OH |
332 | |
333 | /* Enumerations describing which pass this is for scanning the | |
334 | program file ... */ | |
335 | ||
a79683d5 | 336 | enum scanpass { |
7e49a4b3 OH |
337 | PASS_FIRST, /* without constructors */ |
338 | PASS_OBJ, /* individual objects */ | |
339 | PASS_LIB, /* looking for shared libraries */ | |
d7f09764 DN |
340 | PASS_SECOND, /* with constructors linked in */ |
341 | PASS_LTOINFO /* looking for objects with LTO info */ | |
a79683d5 | 342 | }; |
7e49a4b3 OH |
343 | |
344 | /* ... and which kinds of symbols are to be considered. */ | |
345 | ||
346 | enum scanfilter_masks { | |
347 | SCAN_NOTHING = 0, | |
348 | ||
b8698a0f | 349 | SCAN_CTOR = 1 << SYM_CTOR, |
7e49a4b3 OH |
350 | SCAN_DTOR = 1 << SYM_DTOR, |
351 | SCAN_INIT = 1 << SYM_INIT, | |
352 | SCAN_FINI = 1 << SYM_FINI, | |
353 | SCAN_DWEH = 1 << SYM_DWEH, | |
44178879 DE |
354 | SCAN_AIXI = 1 << SYM_AIXI, |
355 | SCAN_AIXD = 1 << SYM_AIXD, | |
7e49a4b3 OH |
356 | SCAN_ALL = ~0 |
357 | }; | |
358 | ||
359 | /* This type is used for parameters and variables which hold | |
360 | combinations of the flags in enum scanfilter_masks. */ | |
361 | typedef int scanfilter; | |
362 | ||
363 | /* Scan the name list of the loaded program for the symbols g++ uses for | |
364 | static constructors and destructors. | |
365 | ||
366 | The SCANPASS argument tells which collect processing pass this is for and | |
367 | the SCANFILTER argument tells which kinds of symbols to consider in this | |
368 | pass. Symbols of a special kind not in the filter mask are considered as | |
369 | regular ones. | |
370 | ||
371 | The constructor table begins at __CTOR_LIST__ and contains a count of the | |
372 | number of pointers (or -1 if the constructors are built in a separate | |
373 | section by the linker), followed by the pointers to the constructor | |
374 | functions, terminated with a null pointer. The destructor table has the | |
375 | same format, and begins at __DTOR_LIST__. */ | |
376 | ||
377 | static void scan_prog_file (const char *, scanpass, scanfilter); | |
378 | ||
4e81a331 | 379 | \f |
4e81a331 RS |
380 | /* Delete tempfiles and exit function. */ |
381 | ||
5f0ad6a5 | 382 | void |
608508a6 | 383 | tool_cleanup (bool from_signal) |
4e81a331 | 384 | { |
73d53120 BE |
385 | /* maybe_unlink may call notice, which is not signal safe. */ |
386 | if (from_signal) | |
387 | verbose = false; | |
388 | ||
ed5b9462 | 389 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
390 | maybe_unlink (c_file); |
391 | ||
ed5b9462 | 392 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
393 | maybe_unlink (o_file); |
394 | ||
db126753 | 395 | #ifdef COLLECT_EXPORT_LIST |
cbbbd917 JM |
396 | if (export_file != 0 && export_file[0]) |
397 | maybe_unlink (export_file); | |
db126753 DE |
398 | #endif |
399 | ||
d7f09764 DN |
400 | if (lto_o_files) |
401 | maybe_unlink_list (lto_o_files); | |
608508a6 | 402 | } |
68ec3111 | 403 | |
608508a6 BS |
404 | static void |
405 | collect_atexit (void) | |
406 | { | |
407 | tool_cleanup (false); | |
4e81a331 RS |
408 | } |
409 | ||
608508a6 BS |
410 | static void |
411 | handler (int signo) | |
412 | { | |
413 | tool_cleanup (true); | |
414 | ||
415 | signal (signo, SIG_DFL); | |
416 | raise (signo); | |
417 | } | |
0f667308 MP |
418 | /* Notify user of a non-error, without translating the format string. */ |
419 | void | |
420 | notice_translated (const char *cmsgid, ...) | |
421 | { | |
422 | va_list ap; | |
423 | ||
424 | va_start (ap, cmsgid); | |
425 | vfprintf (stderr, cmsgid, ap); | |
426 | va_end (ap); | |
427 | } | |
4e81a331 | 428 | \f |
a3184468 | 429 | int |
159b3be1 | 430 | file_exists (const char *name) |
a3184468 JM |
431 | { |
432 | return access (name, R_OK) == 0; | |
4e81a331 RS |
433 | } |
434 | ||
41e16835 JM |
435 | /* Parse a reasonable subset of shell quoting syntax. */ |
436 | ||
437 | static char * | |
159b3be1 | 438 | extract_string (const char **pp) |
41e16835 | 439 | { |
d4058195 | 440 | const char *p = *pp; |
41e16835 JM |
441 | int backquote = 0; |
442 | int inside = 0; | |
443 | ||
444 | for (;;) | |
445 | { | |
446 | char c = *p; | |
447 | if (c == '\0') | |
448 | break; | |
449 | ++p; | |
450 | if (backquote) | |
451 | obstack_1grow (&temporary_obstack, c); | |
452 | else if (! inside && c == ' ') | |
453 | break; | |
454 | else if (! inside && c == '\\') | |
455 | backquote = 1; | |
456 | else if (c == '\'') | |
457 | inside = !inside; | |
458 | else | |
459 | obstack_1grow (&temporary_obstack, c); | |
460 | } | |
461 | ||
b9550223 | 462 | obstack_1grow (&temporary_obstack, '\0'); |
41e16835 | 463 | *pp = p; |
7973fd2a | 464 | return XOBFINISH (&temporary_obstack, char *); |
41e16835 | 465 | } |
ed5b9462 | 466 | \f |
4326ea40 | 467 | /* Return the kind of symbol denoted by name S. */ |
ed5b9462 | 468 | |
4326ea40 | 469 | static symkind |
159b3be1 | 470 | is_ctor_dtor (const char *s) |
ed5b9462 | 471 | { |
81f40b79 | 472 | struct names { const char *const name; const int len; symkind ret; |
8b60264b | 473 | const int two_underscores; }; |
ed5b9462 | 474 | |
c083a819 | 475 | const struct names *p; |
b3694847 SS |
476 | int ch; |
477 | const char *orig_s = s; | |
ed5b9462 | 478 | |
c083a819 | 479 | static const struct names special[] = { |
7488cc6d | 480 | #ifndef NO_DOLLAR_IN_LABEL |
4326ea40 OH |
481 | { "GLOBAL__I$", sizeof ("GLOBAL__I$")-1, SYM_CTOR, 0 }, |
482 | { "GLOBAL__D$", sizeof ("GLOBAL__D$")-1, SYM_DTOR, 0 }, | |
7488cc6d DE |
483 | #else |
484 | #ifndef NO_DOT_IN_LABEL | |
4326ea40 OH |
485 | { "GLOBAL__I.", sizeof ("GLOBAL__I.")-1, SYM_CTOR, 0 }, |
486 | { "GLOBAL__D.", sizeof ("GLOBAL__D.")-1, SYM_DTOR, 0 }, | |
7488cc6d DE |
487 | #endif /* NO_DOT_IN_LABEL */ |
488 | #endif /* NO_DOLLAR_IN_LABEL */ | |
4326ea40 OH |
489 | { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, SYM_CTOR, 0 }, |
490 | { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, SYM_DTOR, 0 }, | |
491 | { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, SYM_DWEH, 0 }, | |
492 | { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, SYM_INIT, 0 }, | |
493 | { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, SYM_FINI, 0 }, | |
44178879 DE |
494 | #ifdef TARGET_AIX_VERSION |
495 | { "GLOBAL__AIXI_", sizeof ("GLOBAL__AIXI_")-1, SYM_AIXI, 0 }, | |
496 | { "GLOBAL__AIXD_", sizeof ("GLOBAL__AIXD_")-1, SYM_AIXD, 0 }, | |
497 | #endif | |
4326ea40 | 498 | { NULL, 0, SYM_REGULAR, 0 } |
ed5b9462 RS |
499 | }; |
500 | ||
501 | while ((ch = *s) == '_') | |
502 | ++s; | |
503 | ||
504 | if (s == orig_s) | |
4326ea40 | 505 | return SYM_REGULAR; |
ed5b9462 RS |
506 | |
507 | for (p = &special[0]; p->len > 0; p++) | |
508 | { | |
509 | if (ch == p->name[0] | |
510 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
c3284718 | 511 | && strncmp (s, p->name, p->len) == 0) |
ed5b9462 RS |
512 | { |
513 | return p->ret; | |
514 | } | |
515 | } | |
4326ea40 | 516 | return SYM_REGULAR; |
ed5b9462 | 517 | } |
bb59f9a6 | 518 | \f |
bb59f9a6 RS |
519 | /* We maintain two prefix lists: one from COMPILER_PATH environment variable |
520 | and one from the PATH variable. */ | |
521 | ||
522 | static struct path_prefix cpath, path; | |
523 | ||
2989d30c | 524 | #ifdef CROSS_DIRECTORY_STRUCTURE |
bb59f9a6 RS |
525 | /* This is the name of the target machine. We use it to form the name |
526 | of the files to execute. */ | |
527 | ||
d4058195 | 528 | static const char *const target_machine = TARGET_MACHINE; |
bb59f9a6 | 529 | #endif |
720653a3 | 530 | |
bb59f9a6 | 531 | /* Search for NAME using prefix list PPREFIX. We only look for executable |
159b3be1 | 532 | files. |
bb59f9a6 | 533 | |
0f41302f | 534 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
bb59f9a6 | 535 | |
ce79110f | 536 | #ifdef OBJECT_FORMAT_NONE |
d72ff618 | 537 | |
d7f09764 DN |
538 | /* Add an entry for the object file NAME to object file list LIST. |
539 | New entries are added at the end of the list. The original pointer | |
540 | value of NAME is preserved, i.e., no string copy is performed. */ | |
541 | ||
542 | static void | |
543 | add_lto_object (struct lto_object_list *list, const char *name) | |
544 | { | |
545 | struct lto_object *n = XNEW (struct lto_object); | |
546 | n->name = name; | |
547 | n->next = NULL; | |
548 | ||
549 | if (list->last) | |
550 | list->last->next = n; | |
551 | else | |
552 | list->first = n; | |
553 | ||
554 | list->last = n; | |
555 | } | |
ce79110f | 556 | #endif /* OBJECT_FORMAT_NONE */ |
d7f09764 DN |
557 | |
558 | ||
559 | /* Perform a link-time recompilation and relink if any of the object | |
560 | files contain LTO info. The linker command line LTO_LD_ARGV | |
561 | represents the linker command that would produce a final executable | |
562 | without the use of LTO. OBJECT_LST is a vector of object file names | |
073a8998 | 563 | appearing in LTO_LD_ARGV that are to be considered for link-time |
d7f09764 DN |
564 | recompilation, where OBJECT is a pointer to the last valid element. |
565 | (This awkward convention avoids an impedance mismatch with the | |
566 | usage of similarly-named variables in main().) The elements of | |
567 | OBJECT_LST must be identical, i.e., pointer equal, to the | |
568 | corresponding arguments in LTO_LD_ARGV. | |
569 | ||
570 | Upon entry, at least one linker run has been performed without the | |
571 | use of any LTO info that might be present. Any recompilations | |
572 | necessary for template instantiations have been performed, and | |
573 | initializer/finalizer tables have been created if needed and | |
574 | included in the linker command line LTO_LD_ARGV. If any of the | |
575 | object files contain LTO info, we run the LTO back end on all such | |
576 | files, and perform the final link with the LTO back end output | |
577 | substituted for the LTO-optimized files. In some cases, a final | |
578 | link with all link-time generated code has already been performed, | |
579 | so there is no need to relink if no LTO info is found. In other | |
580 | cases, our caller has not produced the final executable, and is | |
581 | relying on us to perform the required link whether LTO info is | |
582 | present or not. In that case, the FORCE argument should be true. | |
583 | Note that the linker command line argument LTO_LD_ARGV passed into | |
584 | this function may be modified in place. */ | |
585 | ||
586 | static void | |
587 | maybe_run_lto_and_relink (char **lto_ld_argv, char **object_lst, | |
588 | const char **object, bool force) | |
589 | { | |
590 | const char **object_file = CONST_CAST2 (const char **, char **, object_lst); | |
591 | ||
592 | int num_lto_c_args = 1; /* Allow space for the terminating NULL. */ | |
593 | ||
594 | while (object_file < object) | |
595 | { | |
596 | /* If file contains LTO info, add it to the list of LTO objects. */ | |
597 | scan_prog_file (*object_file++, PASS_LTOINFO, SCAN_ALL); | |
598 | ||
599 | /* Increment the argument count by the number of object file arguments | |
600 | we will add. An upper bound suffices, so just count all of the | |
601 | object files regardless of whether they contain LTO info. */ | |
602 | num_lto_c_args++; | |
603 | } | |
604 | ||
605 | if (lto_objects.first) | |
606 | { | |
d7f09764 DN |
607 | char **lto_c_argv; |
608 | const char **lto_c_ptr; | |
ed2222c8 JH |
609 | char **p; |
610 | char **lto_o_ptr; | |
d7f09764 DN |
611 | struct lto_object *list; |
612 | char *lto_wrapper = getenv ("COLLECT_LTO_WRAPPER"); | |
613 | struct pex_obj *pex; | |
614 | const char *prog = "lto-wrapper"; | |
ed2222c8 JH |
615 | int lto_ld_argv_size = 0; |
616 | char **out_lto_ld_argv; | |
617 | int out_lto_ld_argv_size; | |
618 | size_t num_files; | |
d7f09764 DN |
619 | |
620 | if (!lto_wrapper) | |
a9c697b8 MS |
621 | fatal_error (input_location, "environment variable " |
622 | "%<COLLECT_LTO_WRAPPER%> must be set"); | |
d7f09764 | 623 | |
cf96bae7 RG |
624 | num_lto_c_args++; |
625 | ||
d7f09764 | 626 | /* There is at least one object file containing LTO info, |
ed2222c8 JH |
627 | so we need to run the LTO back end and relink. |
628 | ||
629 | To do so we build updated ld arguments with first | |
630 | LTO object replaced by all partitions and other LTO | |
631 | objects removed. */ | |
d7f09764 | 632 | |
d7f09764 DN |
633 | lto_c_argv = (char **) xcalloc (sizeof (char *), num_lto_c_args); |
634 | lto_c_ptr = CONST_CAST2 (const char **, char **, lto_c_argv); | |
635 | ||
636 | *lto_c_ptr++ = lto_wrapper; | |
d7f09764 DN |
637 | |
638 | /* Add LTO objects to the wrapper command line. */ | |
639 | for (list = lto_objects.first; list; list = list->next) | |
640 | *lto_c_ptr++ = list->name; | |
641 | ||
642 | *lto_c_ptr = NULL; | |
643 | ||
d7f09764 | 644 | /* Run the LTO back end. */ |
5f0ad6a5 BS |
645 | pex = collect_execute (prog, lto_c_argv, NULL, NULL, PEX_SEARCH, |
646 | at_file_supplied); | |
d7f09764 DN |
647 | { |
648 | int c; | |
649 | FILE *stream; | |
ed2222c8 | 650 | size_t i; |
d7f09764 DN |
651 | char *start, *end; |
652 | ||
653 | stream = pex_read_output (pex, 0); | |
654 | gcc_assert (stream); | |
655 | ||
656 | num_files = 0; | |
657 | while ((c = getc (stream)) != EOF) | |
658 | { | |
659 | obstack_1grow (&temporary_obstack, c); | |
660 | if (c == '\n') | |
661 | ++num_files; | |
662 | } | |
663 | ||
73d53120 BE |
664 | /* signal handler may access uninitialized memory |
665 | and delete whatever it points to, if lto_o_files | |
fd136f01 | 666 | is not allocated with calloc. */ |
73d53120 | 667 | lto_o_files = XCNEWVEC (char *, num_files + 1); |
d7f09764 DN |
668 | lto_o_files[num_files] = NULL; |
669 | start = XOBFINISH (&temporary_obstack, char *); | |
670 | for (i = 0; i < num_files; ++i) | |
671 | { | |
672 | end = start; | |
673 | while (*end != '\n') | |
674 | ++end; | |
675 | *end = '\0'; | |
676 | ||
677 | lto_o_files[i] = xstrdup (start); | |
678 | ||
679 | start = end + 1; | |
680 | } | |
681 | ||
682 | obstack_free (&temporary_obstack, temporary_firstobj); | |
683 | } | |
684 | do_wait (prog, pex); | |
685 | pex = NULL; | |
686 | ||
5764ee3c | 687 | /* Compute memory needed for new LD arguments. At most number of original arguments |
ed2222c8 JH |
688 | plus number of partitions. */ |
689 | for (lto_ld_argv_size = 0; lto_ld_argv[lto_ld_argv_size]; lto_ld_argv_size++) | |
690 | ; | |
c3284718 | 691 | out_lto_ld_argv = XCNEWVEC (char *, num_files + lto_ld_argv_size + 1); |
ed2222c8 JH |
692 | out_lto_ld_argv_size = 0; |
693 | ||
d7f09764 DN |
694 | /* After running the LTO back end, we will relink, substituting |
695 | the LTO output for the object files that we submitted to the | |
696 | LTO. Here, we modify the linker command line for the relink. */ | |
d7f09764 | 697 | |
ed2222c8 JH |
698 | /* Copy all arguments until we find first LTO file. */ |
699 | p = lto_ld_argv; | |
d7f09764 DN |
700 | while (*p != NULL) |
701 | { | |
702 | for (list = lto_objects.first; list; list = list->next) | |
ed2222c8 JH |
703 | if (*p == list->name) /* Note test for pointer equality! */ |
704 | break; | |
705 | if (list) | |
706 | break; | |
707 | out_lto_ld_argv[out_lto_ld_argv_size++] = *p++; | |
d7f09764 DN |
708 | } |
709 | ||
ed2222c8 JH |
710 | /* Now insert all LTO partitions. */ |
711 | lto_o_ptr = lto_o_files; | |
712 | while (*lto_o_ptr) | |
713 | out_lto_ld_argv[out_lto_ld_argv_size++] = *lto_o_ptr++; | |
714 | ||
715 | /* ... and copy the rest. */ | |
716 | while (*p != NULL) | |
717 | { | |
718 | for (list = lto_objects.first; list; list = list->next) | |
719 | if (*p == list->name) /* Note test for pointer equality! */ | |
720 | break; | |
721 | if (!list) | |
722 | out_lto_ld_argv[out_lto_ld_argv_size++] = *p; | |
723 | p++; | |
724 | } | |
725 | out_lto_ld_argv[out_lto_ld_argv_size++] = 0; | |
d7f09764 DN |
726 | |
727 | /* Run the linker again, this time replacing the object files | |
728 | optimized by the LTO with the temporary file generated by the LTO. */ | |
5f0ad6a5 | 729 | fork_execute ("ld", out_lto_ld_argv, HAVE_GNU_LD && at_file_supplied); |
4098a6d4 IS |
730 | /* We assume that temp files were created, and therefore we need to take |
731 | that into account (maybe run dsymutil). */ | |
732 | post_ld_pass (/*temp_file*/true); | |
ed2222c8 | 733 | free (lto_ld_argv); |
d7f09764 DN |
734 | |
735 | maybe_unlink_list (lto_o_files); | |
736 | } | |
737 | else if (force) | |
738 | { | |
739 | /* Our caller is relying on us to do the link | |
740 | even though there is no LTO back end work to be done. */ | |
5f0ad6a5 | 741 | fork_execute ("ld", lto_ld_argv, HAVE_GNU_LD && at_file_supplied); |
4098a6d4 IS |
742 | /* No LTO objects were found, so no new temp file. */ |
743 | post_ld_pass (/*temp_file*/false); | |
d7f09764 | 744 | } |
79abf19f | 745 | else |
4098a6d4 | 746 | post_ld_pass (false); /* No LTO objects were found, no temp file. */ |
d7f09764 | 747 | } |
67f6e649 ML |
748 | /* Entry point for linker invoation. Called from main in collect2.c. |
749 | LD_ARGV is an array of arguments for the linker. */ | |
750 | ||
751 | static void | |
752 | do_link (char **ld_argv) | |
753 | { | |
754 | struct pex_obj *pex; | |
755 | const char *prog = "ld"; | |
756 | pex = collect_execute (prog, ld_argv, NULL, NULL, | |
757 | PEX_LAST | PEX_SEARCH, | |
758 | HAVE_GNU_LD && at_file_supplied); | |
759 | int ret = collect_wait (prog, pex); | |
760 | if (ret) | |
761 | { | |
762 | error ("ld returned %d exit status", ret); | |
763 | exit (ret); | |
764 | } | |
765 | else | |
766 | { | |
767 | /* We have just successfully produced an output file, so assume that we | |
768 | may unlink it if need be for now on. */ | |
769 | may_unlink_output_file = true; | |
770 | } | |
771 | } | |
4e81a331 | 772 | \f |
0f41302f | 773 | /* Main program. */ |
4e81a331 RS |
774 | |
775 | int | |
159b3be1 | 776 | main (int argc, char **argv) |
4e81a331 | 777 | { |
b352afba NC |
778 | enum linker_select |
779 | { | |
780 | USE_DEFAULT_LD, | |
781 | USE_PLUGIN_LD, | |
782 | USE_GOLD_LD, | |
783 | USE_BFD_LD, | |
d69ac8b7 | 784 | USE_LLD_LD, |
b352afba NC |
785 | USE_LD_MAX |
786 | } selected_linker = USE_DEFAULT_LD; | |
787 | static const char *const ld_suffixes[USE_LD_MAX] = | |
788 | { | |
789 | "ld", | |
790 | PLUGIN_LD_SUFFIX, | |
791 | "ld.gold", | |
d69ac8b7 RG |
792 | "ld.bfd", |
793 | "ld.lld" | |
b352afba | 794 | }; |
83182544 KG |
795 | static const char *const real_ld_suffix = "real-ld"; |
796 | static const char *const collect_ld_suffix = "collect-ld"; | |
797 | static const char *const nm_suffix = "nm"; | |
83182544 | 798 | static const char *const gnm_suffix = "gnm"; |
68d69835 | 799 | #ifdef LDD_SUFFIX |
83182544 | 800 | static const char *const ldd_suffix = LDD_SUFFIX; |
d4058195 | 801 | #endif |
83182544 | 802 | static const char *const strip_suffix = "strip"; |
83182544 | 803 | static const char *const gstrip_suffix = "gstrip"; |
cb6edbcb | 804 | |
b352afba | 805 | const char *full_ld_suffixes[USE_LD_MAX]; |
2989d30c | 806 | #ifdef CROSS_DIRECTORY_STRUCTURE |
cb6edbcb KG |
807 | /* If we look for a program in the compiler directories, we just use |
808 | the short name, since these directories are already system-specific. | |
809 | But it we look for a program in the system directories, we need to | |
810 | qualify the program name with the target machine. */ | |
811 | ||
cb6edbcb KG |
812 | const char *const full_nm_suffix = |
813 | concat (target_machine, "-", nm_suffix, NULL); | |
814 | const char *const full_gnm_suffix = | |
815 | concat (target_machine, "-", gnm_suffix, NULL); | |
816 | #ifdef LDD_SUFFIX | |
817 | const char *const full_ldd_suffix = | |
818 | concat (target_machine, "-", ldd_suffix, NULL); | |
819 | #endif | |
820 | const char *const full_strip_suffix = | |
821 | concat (target_machine, "-", strip_suffix, NULL); | |
822 | const char *const full_gstrip_suffix = | |
823 | concat (target_machine, "-", gstrip_suffix, NULL); | |
824 | #else | |
cb6edbcb KG |
825 | #ifdef LDD_SUFFIX |
826 | const char *const full_ldd_suffix = ldd_suffix; | |
827 | #endif | |
b352afba NC |
828 | const char *const full_nm_suffix = nm_suffix; |
829 | const char *const full_gnm_suffix = gnm_suffix; | |
cb6edbcb KG |
830 | const char *const full_strip_suffix = strip_suffix; |
831 | const char *const full_gstrip_suffix = gstrip_suffix; | |
2989d30c | 832 | #endif /* CROSS_DIRECTORY_STRUCTURE */ |
cb6edbcb | 833 | |
d4058195 | 834 | const char *arg; |
db126753 DE |
835 | FILE *outf; |
836 | #ifdef COLLECT_EXPORT_LIST | |
837 | FILE *exportf; | |
db126753 | 838 | #endif |
d4058195 KG |
839 | const char *ld_file_name; |
840 | const char *p; | |
ed5b9462 | 841 | char **c_argv; |
d4058195 | 842 | const char **c_ptr; |
ab87f8c8 | 843 | char **ld1_argv; |
d4058195 | 844 | const char **ld1; |
5938f74d | 845 | bool use_plugin = false; |
b352afba | 846 | bool use_collect_ld = false; |
b8698a0f | 847 | |
7e49a4b3 OH |
848 | /* The kinds of symbols we will have to consider when scanning the |
849 | outcome of a first pass link. This is ALL to start with, then might | |
850 | be adjusted before getting to the first pass link per se, typically on | |
851 | AIX where we perform an early scan of objects and libraries to fetch | |
852 | the list of global ctors/dtors and make sure they are not garbage | |
853 | collected. */ | |
854 | scanfilter ld1_filter = SCAN_ALL; | |
855 | ||
ab87f8c8 | 856 | char **ld2_argv; |
d4058195 | 857 | const char **ld2; |
ab87f8c8 | 858 | char **object_lst; |
d4058195 | 859 | const char **object; |
fa66fc02 | 860 | #ifdef TARGET_AIX_VERSION |
4f44e38a | 861 | int object_nbr = argc; |
fa66fc02 | 862 | #endif |
4e81a331 | 863 | int first_file; |
2091ff66 NF |
864 | int num_c_args; |
865 | char **old_argv; | |
e56f4605 | 866 | #ifdef COLLECT_EXPORT_LIST |
6a513e2a | 867 | bool is_static = false; |
e56f4605 | 868 | #endif |
b352afba NC |
869 | int i; |
870 | ||
871 | for (i = 0; i < USE_LD_MAX; i++) | |
872 | full_ld_suffixes[i] | |
873 | #ifdef CROSS_DIRECTORY_STRUCTURE | |
874 | = concat (target_machine, "-", ld_suffixes[i], NULL); | |
875 | #else | |
876 | = ld_suffixes[i]; | |
877 | #endif | |
2091ff66 | 878 | |
9e350e99 JM |
879 | p = argv[0] + strlen (argv[0]); |
880 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
881 | --p; | |
882 | progname = p; | |
883 | ||
884 | xmalloc_set_program_name (progname); | |
885 | ||
2091ff66 NF |
886 | old_argv = argv; |
887 | expandargv (&argc, &argv); | |
888 | if (argv != old_argv) | |
889 | at_file_supplied = 1; | |
890 | ||
11afe8e8 MS |
891 | process_args (&argc, argv); |
892 | ||
2091ff66 | 893 | num_c_args = argc + 9; |
4e81a331 | 894 | |
df45fc34 | 895 | #ifndef HAVE_LD_DEMANGLE |
84db136d JM |
896 | no_demangle = !! getenv ("COLLECT_NO_DEMANGLE"); |
897 | ||
898 | /* Suppress demangling by the real linker, which may be broken. */ | |
df45fc34 SL |
899 | putenv (xstrdup ("COLLECT_NO_DEMANGLE=1")); |
900 | #endif | |
84db136d | 901 | |
ef4969e0 | 902 | #if defined (COLLECT2_HOST_INITIALIZATION) |
f63d1bf7 | 903 | /* Perform system dependent initialization, if necessary. */ |
ef4969e0 | 904 | COLLECT2_HOST_INITIALIZATION; |
f3692274 ME |
905 | #endif |
906 | ||
798bdf70 BK |
907 | #ifdef SIGCHLD |
908 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
909 | receive the signal. A different setting is inheritable */ | |
910 | signal (SIGCHLD, SIG_DFL); | |
911 | #endif | |
912 | ||
98a3dad4 | 913 | /* Unlock the stdio streams. */ |
2653bb0c | 914 | unlock_std_streams (); |
98a3dad4 | 915 | |
191bf464 | 916 | gcc_init_libintl (); |
ab87f8c8 | 917 | |
9e350e99 JM |
918 | diagnostic_initialize (global_dc, 0); |
919 | ||
877088b7 | 920 | if (atexit (collect_atexit) != 0) |
40fecdd6 | 921 | fatal_error (input_location, "atexit failed"); |
877088b7 | 922 | |
ab87f8c8 JL |
923 | /* Do not invoke xcalloc before this point, since locale needs to be |
924 | set first, in case a diagnostic is issued. */ | |
925 | ||
67165eb3 ILT |
926 | ld1_argv = XCNEWVEC (char *, argc + 4); |
927 | ld1 = CONST_CAST2 (const char **, char **, ld1_argv); | |
928 | ld2_argv = XCNEWVEC (char *, argc + 11); | |
929 | ld2 = CONST_CAST2 (const char **, char **, ld2_argv); | |
930 | object_lst = XCNEWVEC (char *, argc); | |
931 | object = CONST_CAST2 (const char **, char **, object_lst); | |
ab87f8c8 | 932 | |
4e81a331 | 933 | #ifdef DEBUG |
f67eeb79 | 934 | debug = true; |
4e81a331 RS |
935 | #endif |
936 | ||
f67eeb79 IS |
937 | save_temps = false; |
938 | verbose = false; | |
513825f0 IS |
939 | |
940 | #ifndef DEFAULT_A_OUT_NAME | |
941 | output_file = "a.out"; | |
942 | #else | |
943 | output_file = DEFAULT_A_OUT_NAME; | |
944 | #endif | |
945 | ||
f67eeb79 IS |
946 | /* Parse command line / environment for flags we want early. |
947 | This allows the debug flag to be set before functions like find_a_file() | |
948 | are called. */ | |
ae8c5963 | 949 | { |
014d92e1 | 950 | bool no_partition = false; |
159b3be1 | 951 | |
ae8c5963 | 952 | for (i = 1; argv[i] != NULL; i ++) |
5f31e9bc RO |
953 | { |
954 | if (! strcmp (argv[i], "-debug")) | |
7c6d86cc | 955 | debug = true; |
595c8dfa AK |
956 | else if (!strncmp (argv[i], "-fno-lto", 8)) |
957 | lto_mode = LTO_MODE_NONE; | |
d7f09764 DN |
958 | else if (! strcmp (argv[i], "-plugin")) |
959 | { | |
960 | use_plugin = true; | |
b352afba NC |
961 | if (selected_linker == USE_DEFAULT_LD) |
962 | selected_linker = USE_PLUGIN_LD; | |
d7f09764 | 963 | } |
b352afba NC |
964 | else if (strcmp (argv[i], "-fuse-ld=bfd") == 0) |
965 | selected_linker = USE_BFD_LD; | |
966 | else if (strcmp (argv[i], "-fuse-ld=gold") == 0) | |
967 | selected_linker = USE_GOLD_LD; | |
513825f0 IS |
968 | else if (strcmp (argv[i], "-fuse-ld=lld") == 0) |
969 | selected_linker = USE_LLD_LD; | |
970 | else if (strncmp (argv[i], "-o", 2) == 0) | |
971 | { | |
972 | /* Parse the output filename if it's given so that we can make | |
973 | meaningful temp filenames. */ | |
974 | if (argv[i][2] == '\0') | |
975 | output_file = argv[i+1]; | |
976 | else | |
977 | output_file = &argv[i][2]; | |
978 | } | |
b352afba | 979 | |
88febe35 | 980 | #ifdef COLLECT_EXPORT_LIST |
d96d674b MH |
981 | /* These flags are position independent, although their order |
982 | is important - subsequent flags override earlier ones. */ | |
983 | else if (strcmp (argv[i], "-b64") == 0) | |
984 | aix64_flag = 1; | |
985 | /* -bexport:filename always needs the :filename */ | |
986 | else if (strncmp (argv[i], "-bE:", 4) == 0 | |
987 | || strncmp (argv[i], "-bexport:", 9) == 0) | |
988 | export_flag = 1; | |
989 | else if (strcmp (argv[i], "-brtl") == 0 | |
990 | || strcmp (argv[i], "-bsvr4") == 0 | |
991 | || strcmp (argv[i], "-G") == 0) | |
992 | aixrtl_flag = 1; | |
993 | else if (strcmp (argv[i], "-bnortl") == 0) | |
994 | aixrtl_flag = 0; | |
44178879 DE |
995 | else if (strcmp (argv[i], "-blazy") == 0) |
996 | aixlazy_flag = 1; | |
88febe35 | 997 | #endif |
5f31e9bc | 998 | } |
ae8c5963 | 999 | |
f67eeb79 IS |
1000 | obstack_begin (&temporary_obstack, 0); |
1001 | temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0); | |
588e387f | 1002 | |
d594623a | 1003 | #ifndef HAVE_LD_DEMANGLE |
a545190e | 1004 | current_demangling_style = auto_demangling; |
d594623a | 1005 | #endif |
f67eeb79 IS |
1006 | |
1007 | /* Now pick up any flags we want early from COLLECT_GCC_OPTIONS | |
1008 | The LTO options are passed here as are other options that might | |
1009 | be unsuitable for ld (e.g. -save-temps). */ | |
1010 | p = getenv ("COLLECT_GCC_OPTIONS"); | |
1011 | while (p && *p) | |
1012 | { | |
1013 | const char *q = extract_string (&p); | |
1014 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) | |
1015 | num_c_args++; | |
1016 | if (strncmp (q, "-flto-partition=none", 20) == 0) | |
1017 | no_partition = true; | |
1018 | else if (strncmp (q, "-fno-lto", 8) == 0) | |
1019 | lto_mode = LTO_MODE_NONE; | |
513825f0 IS |
1020 | else if (strncmp (q, "-save-temps", 11) == 0) |
1021 | /* FIXME: Honour =obj. */ | |
1022 | save_temps = true; | |
41e16835 | 1023 | } |
f67eeb79 IS |
1024 | obstack_free (&temporary_obstack, temporary_firstobj); |
1025 | ||
1026 | verbose = verbose || debug; | |
1027 | save_temps = save_temps || debug; | |
1028 | find_file_set_debug (debug); | |
1029 | if (use_plugin) | |
1030 | lto_mode = LTO_MODE_NONE; | |
1031 | if (no_partition && lto_mode == LTO_MODE_WHOPR) | |
1032 | lto_mode = LTO_MODE_LTO; | |
1033 | } | |
43a8f6d5 | 1034 | |
77e86c91 | 1035 | /* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities |
13291c16 JH |
1036 | -fno-exceptions -w -fno-whole-program */ |
1037 | num_c_args += 6; | |
ed5b9462 | 1038 | |
67165eb3 ILT |
1039 | c_argv = XCNEWVEC (char *, num_c_args); |
1040 | c_ptr = CONST_CAST2 (const char **, char **, c_argv); | |
ed5b9462 | 1041 | |
4e81a331 | 1042 | if (argc < 2) |
40fecdd6 | 1043 | fatal_error (input_location, "no arguments"); |
4e81a331 | 1044 | |
8ab861c7 | 1045 | #ifdef SIGQUIT |
915ee623 JW |
1046 | if (signal (SIGQUIT, SIG_IGN) != SIG_IGN) |
1047 | signal (SIGQUIT, handler); | |
8ab861c7 | 1048 | #endif |
915ee623 JW |
1049 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1050 | signal (SIGINT, handler); | |
8ab861c7 | 1051 | #ifdef SIGALRM |
915ee623 JW |
1052 | if (signal (SIGALRM, SIG_IGN) != SIG_IGN) |
1053 | signal (SIGALRM, handler); | |
8ab861c7 RK |
1054 | #endif |
1055 | #ifdef SIGHUP | |
915ee623 JW |
1056 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
1057 | signal (SIGHUP, handler); | |
8ab861c7 | 1058 | #endif |
915ee623 JW |
1059 | if (signal (SIGSEGV, SIG_IGN) != SIG_IGN) |
1060 | signal (SIGSEGV, handler); | |
8ab861c7 | 1061 | #ifdef SIGBUS |
915ee623 JW |
1062 | if (signal (SIGBUS, SIG_IGN) != SIG_IGN) |
1063 | signal (SIGBUS, handler); | |
8ab861c7 | 1064 | #endif |
4e81a331 | 1065 | |
bb59f9a6 RS |
1066 | /* Extract COMPILER_PATH and PATH into our prefix list. */ |
1067 | prefix_from_env ("COMPILER_PATH", &cpath); | |
1068 | prefix_from_env ("PATH", &path); | |
4e81a331 | 1069 | |
bb59f9a6 RS |
1070 | /* Try to discover a valid linker/nm/strip to use. */ |
1071 | ||
90d326bd | 1072 | /* Maybe we know the right file to use (if not cross). */ |
0eac1e43 | 1073 | ld_file_name = 0; |
ab339d62 | 1074 | #ifdef DEFAULT_LINKER |
d69ac8b7 RG |
1075 | if (selected_linker == USE_BFD_LD || selected_linker == USE_GOLD_LD || |
1076 | selected_linker == USE_LLD_LD) | |
b78e932d L |
1077 | { |
1078 | char *linker_name; | |
1079 | # ifdef HOST_EXECUTABLE_SUFFIX | |
1080 | int len = (sizeof (DEFAULT_LINKER) | |
1081 | - sizeof (HOST_EXECUTABLE_SUFFIX)); | |
1082 | linker_name = NULL; | |
1083 | if (len > 0) | |
1084 | { | |
1085 | char *default_linker = xstrdup (DEFAULT_LINKER); | |
1086 | /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains | |
1087 | HOST_EXECUTABLE_SUFFIX. */ | |
1088 | if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX)) | |
1089 | { | |
1090 | default_linker[len] = '\0'; | |
1091 | linker_name = concat (default_linker, | |
1092 | &ld_suffixes[selected_linker][2], | |
1093 | HOST_EXECUTABLE_SUFFIX, NULL); | |
1094 | } | |
1095 | } | |
1096 | if (linker_name == NULL) | |
1097 | # endif | |
1098 | linker_name = concat (DEFAULT_LINKER, | |
1099 | &ld_suffixes[selected_linker][2], | |
1100 | NULL); | |
1101 | if (access (linker_name, X_OK) == 0) | |
1102 | ld_file_name = linker_name; | |
1103 | } | |
1104 | if (ld_file_name == 0 && access (DEFAULT_LINKER, X_OK) == 0) | |
ab339d62 AO |
1105 | ld_file_name = DEFAULT_LINKER; |
1106 | if (ld_file_name == 0) | |
1107 | #endif | |
90d326bd | 1108 | #ifdef REAL_LD_FILE_NAME |
a09f1a76 | 1109 | ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME, X_OK); |
90d326bd JM |
1110 | if (ld_file_name == 0) |
1111 | #endif | |
a3184468 | 1112 | /* Search the (target-specific) compiler dirs for ld'. */ |
a09f1a76 | 1113 | ld_file_name = find_a_file (&cpath, real_ld_suffix, X_OK); |
a3184468 | 1114 | /* Likewise for `collect-ld'. */ |
bb59f9a6 | 1115 | if (ld_file_name == 0) |
b352afba | 1116 | { |
a09f1a76 | 1117 | ld_file_name = find_a_file (&cpath, collect_ld_suffix, X_OK); |
b352afba NC |
1118 | use_collect_ld = ld_file_name != 0; |
1119 | } | |
b3a2ef94 RK |
1120 | /* Search the compiler directories for `ld'. We have protection against |
1121 | recursive calls in find_a_file. */ | |
f820b898 | 1122 | if (ld_file_name == 0) |
a09f1a76 | 1123 | ld_file_name = find_a_file (&cpath, ld_suffixes[selected_linker], X_OK); |
bb59f9a6 | 1124 | /* Search the ordinary system bin directories |
46c74083 | 1125 | for `ld' (if native linking) or `TARGET-ld' (if cross). */ |
bb59f9a6 | 1126 | if (ld_file_name == 0) |
a09f1a76 | 1127 | ld_file_name = find_a_file (&path, full_ld_suffixes[selected_linker], X_OK); |
bb59f9a6 | 1128 | |
90d326bd | 1129 | #ifdef REAL_NM_FILE_NAME |
a09f1a76 | 1130 | nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME, X_OK); |
90d326bd JM |
1131 | if (nm_file_name == 0) |
1132 | #endif | |
a09f1a76 | 1133 | nm_file_name = find_a_file (&cpath, gnm_suffix, X_OK); |
bb59f9a6 | 1134 | if (nm_file_name == 0) |
a09f1a76 | 1135 | nm_file_name = find_a_file (&path, full_gnm_suffix, X_OK); |
bb59f9a6 | 1136 | if (nm_file_name == 0) |
a09f1a76 | 1137 | nm_file_name = find_a_file (&cpath, nm_suffix, X_OK); |
bb59f9a6 | 1138 | if (nm_file_name == 0) |
a09f1a76 | 1139 | nm_file_name = find_a_file (&path, full_nm_suffix, X_OK); |
bb59f9a6 | 1140 | |
68d69835 | 1141 | #ifdef LDD_SUFFIX |
a09f1a76 | 1142 | ldd_file_name = find_a_file (&cpath, ldd_suffix, X_OK); |
68d69835 | 1143 | if (ldd_file_name == 0) |
a09f1a76 | 1144 | ldd_file_name = find_a_file (&path, full_ldd_suffix, X_OK); |
68d69835 JM |
1145 | #endif |
1146 | ||
90d326bd | 1147 | #ifdef REAL_STRIP_FILE_NAME |
a09f1a76 | 1148 | strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME, X_OK); |
90d326bd JM |
1149 | if (strip_file_name == 0) |
1150 | #endif | |
a09f1a76 | 1151 | strip_file_name = find_a_file (&cpath, gstrip_suffix, X_OK); |
bb59f9a6 | 1152 | if (strip_file_name == 0) |
a09f1a76 | 1153 | strip_file_name = find_a_file (&path, full_gstrip_suffix, X_OK); |
bb59f9a6 | 1154 | if (strip_file_name == 0) |
a09f1a76 | 1155 | strip_file_name = find_a_file (&cpath, strip_suffix, X_OK); |
bb59f9a6 | 1156 | if (strip_file_name == 0) |
a09f1a76 | 1157 | strip_file_name = find_a_file (&path, full_strip_suffix, X_OK); |
4e81a331 | 1158 | |
a87104d9 | 1159 | /* Determine the full path name of the C compiler to use. */ |
ed5b9462 | 1160 | c_file_name = getenv ("COLLECT_GCC"); |
5365d6ee | 1161 | if (c_file_name == 0) |
4e81a331 | 1162 | { |
2989d30c | 1163 | #ifdef CROSS_DIRECTORY_STRUCTURE |
d4058195 | 1164 | c_file_name = concat (target_machine, "-gcc", NULL); |
4e81a331 | 1165 | #else |
bb59f9a6 | 1166 | c_file_name = "gcc"; |
a87104d9 | 1167 | #endif |
a87104d9 MM |
1168 | } |
1169 | ||
a09f1a76 | 1170 | p = find_a_file (&cpath, c_file_name, X_OK); |
bb59f9a6 RS |
1171 | |
1172 | /* Here it should be safe to use the system search path since we should have | |
1173 | already qualified the name of the compiler when it is needed. */ | |
1174 | if (p == 0) | |
a09f1a76 | 1175 | p = find_a_file (&path, c_file_name, X_OK); |
bb59f9a6 RS |
1176 | |
1177 | if (p) | |
1178 | c_file_name = p; | |
4e81a331 | 1179 | |
45840c57 | 1180 | *ld1++ = *ld2++ = ld_file_name; |
4e81a331 | 1181 | |
0f41302f | 1182 | /* Make temp file names. */ |
513825f0 IS |
1183 | if (save_temps) |
1184 | { | |
73d53120 BE |
1185 | c_file = concat (output_file, ".cdtor.c", NULL); |
1186 | o_file = concat (output_file, ".cdtor.o", NULL); | |
1187 | #ifdef COLLECT_EXPORT_LIST | |
1188 | export_file = concat (output_file, ".x", NULL); | |
1189 | #endif | |
513825f0 IS |
1190 | } |
1191 | else | |
1192 | { | |
1193 | c_file = make_temp_file (".cdtor.c"); | |
1194 | o_file = make_temp_file (".cdtor.o"); | |
db126753 | 1195 | #ifdef COLLECT_EXPORT_LIST |
73d53120 | 1196 | export_file = make_temp_file (".x"); |
db126753 | 1197 | #endif |
888f0920 | 1198 | } |
513825f0 | 1199 | /* Build the command line to compile the ctor/dtor list. */ |
ed5b9462 | 1200 | *c_ptr++ = c_file_name; |
cb689bb6 JL |
1201 | *c_ptr++ = "-x"; |
1202 | *c_ptr++ = "c"; | |
4e81a331 RS |
1203 | *c_ptr++ = "-c"; |
1204 | *c_ptr++ = "-o"; | |
1205 | *c_ptr++ = o_file; | |
1206 | ||
db126753 DE |
1207 | #ifdef COLLECT_EXPORT_LIST |
1208 | /* Generate a list of directories from LIBPATH. */ | |
1209 | prefix_from_env ("LIBPATH", &libpath_lib_dirs); | |
1210 | /* Add to this list also two standard directories where | |
1211 | AIX loader always searches for libraries. */ | |
1212 | add_prefix (&libpath_lib_dirs, "/lib"); | |
1213 | add_prefix (&libpath_lib_dirs, "/usr/lib"); | |
1214 | #endif | |
1215 | ||
159b3be1 | 1216 | /* Get any options that the upper GCC wants to pass to the sub-GCC. |
db126753 DE |
1217 | |
1218 | AIX support needs to know if -shared has been specified before | |
1219 | parsing commandline arguments. */ | |
1220 | ||
670ee920 | 1221 | p = getenv ("COLLECT_GCC_OPTIONS"); |
db126753 DE |
1222 | while (p && *p) |
1223 | { | |
d4058195 | 1224 | const char *q = extract_string (&p); |
db126753 | 1225 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) |
6d9f628e | 1226 | *c_ptr++ = xstrdup (q); |
fb0b29ad | 1227 | if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0) |
6d9f628e | 1228 | *c_ptr++ = xstrdup (q); |
518c1311 | 1229 | if (strcmp (q, "-shared") == 0) |
db126753 | 1230 | shared_obj = 1; |
6a513e2a TR |
1231 | if (strcmp (q, "-static") == 0) |
1232 | static_obj = 1; | |
d9068c61 HPN |
1233 | if (*q == '-' && q[1] == 'B') |
1234 | { | |
6d9f628e | 1235 | *c_ptr++ = xstrdup (q); |
d9068c61 HPN |
1236 | if (q[2] == 0) |
1237 | { | |
1238 | q = extract_string (&p); | |
6d9f628e | 1239 | *c_ptr++ = xstrdup (q); |
d9068c61 HPN |
1240 | } |
1241 | } | |
db126753 DE |
1242 | } |
1243 | obstack_free (&temporary_obstack, temporary_firstobj); | |
77e86c91 DE |
1244 | *c_ptr++ = "-fno-profile-arcs"; |
1245 | *c_ptr++ = "-fno-test-coverage"; | |
1246 | *c_ptr++ = "-fno-branch-probabilities"; | |
db126753 | 1247 | *c_ptr++ = "-fno-exceptions"; |
43a8f6d5 | 1248 | *c_ptr++ = "-w"; |
13291c16 | 1249 | *c_ptr++ = "-fno-whole-program"; |
db126753 | 1250 | |
ed5b9462 RS |
1251 | /* !!! When GCC calls collect2, |
1252 | it does not know whether it is calling collect2 or ld. | |
1253 | So collect2 cannot meaningfully understand any options | |
1254 | except those ld understands. | |
1255 | If you propose to make GCC pass some other option, | |
1256 | just imagine what will happen if ld is really ld!!! */ | |
1257 | ||
0f41302f | 1258 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
ed5b9462 RS |
1259 | /* After the first file, put in the c++ rt0. */ |
1260 | ||
e56f4605 | 1261 | #ifdef COLLECT_EXPORT_LIST |
6a513e2a | 1262 | is_static = static_obj; |
e56f4605 | 1263 | #endif |
4e81a331 | 1264 | first_file = 1; |
0f41302f | 1265 | while ((arg = *++argv) != (char *) 0) |
4e81a331 RS |
1266 | { |
1267 | *ld1++ = *ld2++ = arg; | |
1268 | ||
1269 | if (arg[0] == '-') | |
2d5e74ca | 1270 | { |
4e81a331 RS |
1271 | switch (arg[1]) |
1272 | { | |
1273 | case 'd': | |
1274 | if (!strcmp (arg, "-debug")) | |
1275 | { | |
ae8c5963 | 1276 | /* Already parsed. */ |
4e81a331 RS |
1277 | ld1--; |
1278 | ld2--; | |
1279 | } | |
60828cbd | 1280 | if (!strcmp (arg, "-dynamic-linker") && argv[1]) |
c22cacf3 | 1281 | { |
60828cbd ME |
1282 | ++argv; |
1283 | *ld1++ = *ld2++ = *argv; | |
1284 | } | |
4e81a331 RS |
1285 | break; |
1286 | ||
d7f09764 | 1287 | case 'f': |
014d92e1 | 1288 | if (strncmp (arg, "-flto", 5) == 0) |
d7f09764 DN |
1289 | { |
1290 | #ifdef ENABLE_LTO | |
1291 | /* Do not pass LTO flag to the linker. */ | |
1292 | ld1--; | |
1293 | ld2--; | |
1294 | #else | |
1295 | error ("LTO support has not been enabled in this " | |
1296 | "configuration"); | |
1297 | #endif | |
1298 | } | |
b352afba NC |
1299 | else if (!use_collect_ld |
1300 | && strncmp (arg, "-fuse-ld=", 9) == 0) | |
1301 | { | |
d69ac8b7 | 1302 | /* Do not pass -fuse-ld={bfd|gold|lld} to the linker. */ |
b352afba NC |
1303 | ld1--; |
1304 | ld2--; | |
1305 | } | |
fa608e77 MT |
1306 | else if (strncmp (arg, "-fno-lto", 8) == 0) |
1307 | { | |
1308 | /* Do not pass -fno-lto to the linker. */ | |
1309 | ld1--; | |
1310 | ld2--; | |
1311 | } | |
4f44e38a TG |
1312 | #ifdef TARGET_AIX_VERSION |
1313 | else | |
1314 | { | |
1315 | /* File containing a list of input files to process. */ | |
1316 | ||
1317 | FILE *stream; | |
1318 | char buf[MAXPATHLEN + 2]; | |
1319 | /* Number of additionnal object files. */ | |
1320 | int add_nbr = 0; | |
1321 | /* Maximum of additionnal object files before vector | |
1322 | expansion. */ | |
1323 | int add_max = 0; | |
1324 | const char *list_filename = arg + 2; | |
1325 | ||
1326 | /* Accept -fFILENAME and -f FILENAME. */ | |
1327 | if (*list_filename == '\0' && argv[1]) | |
1328 | { | |
1329 | ++argv; | |
1330 | list_filename = *argv; | |
1331 | *ld1++ = *ld2++ = *argv; | |
1332 | } | |
1333 | ||
1334 | stream = fopen (list_filename, "r"); | |
1335 | if (stream == NULL) | |
a9c697b8 | 1336 | fatal_error (input_location, "cannot open %s: %m", |
40fecdd6 | 1337 | list_filename); |
4f44e38a TG |
1338 | |
1339 | while (fgets (buf, sizeof buf, stream) != NULL) | |
1340 | { | |
1341 | /* Remove end of line. */ | |
1342 | int len = strlen (buf); | |
1343 | if (len >= 1 && buf[len - 1] =='\n') | |
1344 | buf[len - 1] = '\0'; | |
1345 | ||
1346 | /* Put on object vector. | |
1347 | Note: we only expanse vector here, so we must keep | |
1348 | extra space for remaining arguments. */ | |
1349 | if (add_nbr >= add_max) | |
1350 | { | |
6588d711 OH |
1351 | int pos = |
1352 | object - CONST_CAST2 (const char **, char **, | |
1353 | object_lst); | |
4f44e38a TG |
1354 | add_max = (add_max == 0) ? 16 : add_max * 2; |
1355 | object_lst = XRESIZEVEC (char *, object_lst, | |
1356 | object_nbr + add_max); | |
6588d711 OH |
1357 | object = CONST_CAST2 (const char **, char **, |
1358 | object_lst) + pos; | |
4f44e38a TG |
1359 | object_nbr += add_max; |
1360 | } | |
1361 | *object++ = xstrdup (buf); | |
1362 | add_nbr++; | |
1363 | } | |
1364 | fclose (stream); | |
1365 | } | |
1366 | #endif | |
d7f09764 DN |
1367 | break; |
1368 | ||
6a513e2a TR |
1369 | #ifdef COLLECT_EXPORT_LIST |
1370 | case 'b': | |
1371 | if (!strcmp (arg, "-bstatic")) | |
1372 | { | |
1373 | is_static = true; | |
1374 | } | |
1375 | else if (!strcmp (arg, "-bdynamic") || !strcmp (arg, "-bshared")) | |
1376 | { | |
1377 | is_static = false; | |
1378 | } | |
1379 | break; | |
1380 | #endif | |
68d69835 JM |
1381 | case 'l': |
1382 | if (first_file) | |
1383 | { | |
1384 | /* place o_file BEFORE this argument! */ | |
1385 | first_file = 0; | |
1386 | ld2--; | |
1387 | *ld2++ = o_file; | |
1388 | *ld2++ = arg; | |
1389 | } | |
db126753 DE |
1390 | #ifdef COLLECT_EXPORT_LIST |
1391 | { | |
c22cacf3 | 1392 | /* Resolving full library name. */ |
d4058195 | 1393 | const char *s = resolve_lib_name (arg+2); |
db126753 | 1394 | |
db126753 DE |
1395 | /* Saving a full library name. */ |
1396 | add_to_list (&libs, s); | |
6a513e2a TR |
1397 | if (is_static) |
1398 | add_to_list (&static_libs, s); | |
db126753 DE |
1399 | } |
1400 | #endif | |
1401 | break; | |
1402 | ||
1403 | #ifdef COLLECT_EXPORT_LIST | |
1404 | /* Saving directories where to search for libraries. */ | |
159b3be1 | 1405 | case 'L': |
db126753 | 1406 | add_prefix (&cmdline_lib_dirs, arg+2); |
68d69835 | 1407 | break; |
db126753 | 1408 | #endif |
68d69835 | 1409 | |
4e81a331 | 1410 | case 'o': |
603b4064 RK |
1411 | if (arg[2] == '\0') |
1412 | output_file = *ld1++ = *ld2++ = *++argv; | |
d5d8b111 | 1413 | else |
603b4064 | 1414 | output_file = &arg[2]; |
4e81a331 RS |
1415 | break; |
1416 | ||
1417 | case 'r': | |
1418 | if (arg[2] == '\0') | |
1419 | rflag = 1; | |
1420 | break; | |
1421 | ||
a87104d9 | 1422 | case 's': |
a3184468 | 1423 | if (arg[2] == '\0' && do_collecting) |
a87104d9 MM |
1424 | { |
1425 | /* We must strip after the nm run, otherwise C++ linking | |
db126753 | 1426 | will not work. Thus we strip in the second ld run, or |
a87104d9 MM |
1427 | else with strip if there is no second ld run. */ |
1428 | strip_flag = 1; | |
1429 | ld1--; | |
1430 | } | |
1431 | break; | |
1432 | ||
4e81a331 RS |
1433 | case 'v': |
1434 | if (arg[2] == '\0') | |
608508a6 | 1435 | verbose = true; |
4e81a331 | 1436 | break; |
27605cbe PB |
1437 | |
1438 | case '-': | |
1439 | if (strcmp (arg, "--no-demangle") == 0) | |
1440 | { | |
df45fc34 | 1441 | #ifndef HAVE_LD_DEMANGLE |
27605cbe PB |
1442 | no_demangle = 1; |
1443 | ld1--; | |
1444 | ld2--; | |
df45fc34 | 1445 | #endif |
27605cbe PB |
1446 | } |
1447 | else if (strncmp (arg, "--demangle", 10) == 0) | |
1448 | { | |
27605cbe | 1449 | #ifndef HAVE_LD_DEMANGLE |
df45fc34 | 1450 | no_demangle = 0; |
27605cbe PB |
1451 | if (arg[10] == '=') |
1452 | { | |
1453 | enum demangling_styles style | |
1454 | = cplus_demangle_name_to_style (arg+11); | |
1455 | if (style == unknown_demangling) | |
904f3daa | 1456 | error ("unknown demangling style %qs", arg+11); |
27605cbe PB |
1457 | else |
1458 | current_demangling_style = style; | |
1459 | } | |
27605cbe PB |
1460 | ld1--; |
1461 | ld2--; | |
df45fc34 | 1462 | #endif |
27605cbe | 1463 | } |
781a1758 RS |
1464 | else if (strncmp (arg, "--sysroot=", 10) == 0) |
1465 | target_system_root = arg + 10; | |
2dcef31e | 1466 | else if (strcmp (arg, "--version") == 0) |
608508a6 | 1467 | verbose = true; |
2dcef31e | 1468 | else if (strcmp (arg, "--help") == 0) |
7c6d86cc | 1469 | helpflag = true; |
27605cbe | 1470 | break; |
4e81a331 | 1471 | } |
2d5e74ca | 1472 | } |
9473c522 | 1473 | else if ((p = strrchr (arg, '.')) != (char *) 0 |
db126753 | 1474 | && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0 |
05dba9ee DE |
1475 | || strcmp (p, ".so") == 0 || strcmp (p, ".lo") == 0 |
1476 | || strcmp (p, ".obj") == 0)) | |
4e81a331 | 1477 | { |
9f21696b JM |
1478 | if (first_file) |
1479 | { | |
1480 | first_file = 0; | |
603b4064 RK |
1481 | if (p[1] == 'o') |
1482 | *ld2++ = o_file; | |
1483 | else | |
1484 | { | |
1485 | /* place o_file BEFORE this argument! */ | |
1486 | ld2--; | |
1487 | *ld2++ = o_file; | |
1488 | *ld2++ = arg; | |
1489 | } | |
9f21696b | 1490 | } |
31d432e4 | 1491 | if (p[1] == 'o' || p[1] == 'l') |
9f21696b | 1492 | *object++ = arg; |
db126753 DE |
1493 | #ifdef COLLECT_EXPORT_LIST |
1494 | /* libraries can be specified directly, i.e. without -l flag. */ | |
159b3be1 AJ |
1495 | else |
1496 | { | |
db126753 | 1497 | /* Saving a full library name. */ |
c22cacf3 | 1498 | add_to_list (&libs, arg); |
6a513e2a TR |
1499 | if (is_static) |
1500 | add_to_list (&static_libs, arg); | |
c22cacf3 | 1501 | } |
db126753 | 1502 | #endif |
4e81a331 RS |
1503 | } |
1504 | } | |
1505 | ||
db126753 DE |
1506 | #ifdef COLLECT_EXPORT_LIST |
1507 | /* This is added only for debugging purposes. */ | |
1508 | if (debug) | |
41e16835 | 1509 | { |
db126753 DE |
1510 | fprintf (stderr, "List of libraries:\n"); |
1511 | dump_list (stderr, "\t", libs.first); | |
6a513e2a TR |
1512 | fprintf (stderr, "List of statically linked libraries:\n"); |
1513 | dump_list (stderr, "\t", static_libs.first); | |
41e16835 | 1514 | } |
ed5b9462 | 1515 | |
cbbbd917 | 1516 | /* The AIX linker will discard static constructors in object files if |
7e49a4b3 OH |
1517 | nothing else in the file is referenced, so look at them first. Unless |
1518 | we are building a shared object, ignore the eh frame tables, as we | |
1519 | would otherwise reference them all, hence drag all the corresponding | |
1520 | objects even if nothing else is referenced. */ | |
db126753 | 1521 | { |
b8698a0f | 1522 | const char **export_object_lst |
7e49a4b3 | 1523 | = CONST_CAST2 (const char **, char **, object_lst); |
b8698a0f | 1524 | |
db126753 | 1525 | struct id *list = libs.first; |
9d4d5d58 | 1526 | |
7e49a4b3 OH |
1527 | /* Compute the filter to use from the current one, do scan, then adjust |
1528 | the "current" filter to remove what we just included here. This will | |
1529 | control whether we need a first pass link later on or not, and what | |
1530 | will remain to be scanned there. */ | |
b8698a0f | 1531 | |
636cf8b1 RS |
1532 | scanfilter this_filter = ld1_filter; |
1533 | #if HAVE_AS_REF | |
1534 | if (!shared_obj) | |
1535 | this_filter &= ~SCAN_DWEH; | |
1536 | #endif | |
b8698a0f | 1537 | |
6a513e2a | 1538 | /* Scan object files. */ |
7e49a4b3 OH |
1539 | while (export_object_lst < object) |
1540 | scan_prog_file (*export_object_lst++, PASS_OBJ, this_filter); | |
b8698a0f | 1541 | |
6a513e2a | 1542 | /* Scan libraries. */ |
db126753 | 1543 | for (; list; list = list->next) |
7e49a4b3 | 1544 | scan_prog_file (list->name, PASS_FIRST, this_filter); |
b8698a0f | 1545 | |
7e49a4b3 | 1546 | ld1_filter = ld1_filter & ~this_filter; |
db126753 | 1547 | } |
9d4d5d58 DE |
1548 | |
1549 | if (exports.first) | |
1550 | { | |
d4c3ec27 | 1551 | char *buf = concat ("-bE:", export_file, NULL); |
159b3be1 | 1552 | |
9d4d5d58 DE |
1553 | *ld1++ = buf; |
1554 | *ld2++ = buf; | |
1555 | ||
1556 | exportf = fopen (export_file, "w"); | |
1557 | if (exportf == (FILE *) 0) | |
40fecdd6 | 1558 | fatal_error (input_location, "fopen %s: %m", export_file); |
9d4d5d58 DE |
1559 | write_aix_file (exportf, exports.first); |
1560 | if (fclose (exportf)) | |
40fecdd6 | 1561 | fatal_error (input_location, "fclose %s: %m", export_file); |
9d4d5d58 | 1562 | } |
cbbbd917 JM |
1563 | #endif |
1564 | ||
4e81a331 | 1565 | *c_ptr++ = c_file; |
d4058195 | 1566 | *c_ptr = *ld1 = *object = (char *) 0; |
4e81a331 | 1567 | |
608508a6 | 1568 | if (verbose) |
eb1eb914 | 1569 | notice ("collect2 version %s\n", version_string); |
4e81a331 | 1570 | |
7c6d86cc JG |
1571 | if (helpflag) |
1572 | { | |
df10a535 RW |
1573 | printf ("Usage: collect2 [options]\n"); |
1574 | printf (" Wrap linker and generate constructor code if needed.\n"); | |
1575 | printf (" Options:\n"); | |
1576 | printf (" -debug Enable debug output\n"); | |
1577 | printf (" --help Display this information\n"); | |
1578 | printf (" -v, --version Display this program's version number\n"); | |
1579 | printf ("\n"); | |
e050689b | 1580 | printf ("Overview: https://gcc.gnu.org/onlinedocs/gccint/Collect2.html\n"); |
df10a535 RW |
1581 | printf ("Report bugs: %s\n", bug_report_url); |
1582 | printf ("\n"); | |
7c6d86cc JG |
1583 | } |
1584 | ||
4e81a331 RS |
1585 | if (debug) |
1586 | { | |
d4058195 | 1587 | const char *ptr; |
a1549b15 RS |
1588 | fprintf (stderr, "ld_file_name = %s\n", |
1589 | (ld_file_name ? ld_file_name : "not found")); | |
1590 | fprintf (stderr, "c_file_name = %s\n", | |
1591 | (c_file_name ? c_file_name : "not found")); | |
1592 | fprintf (stderr, "nm_file_name = %s\n", | |
1593 | (nm_file_name ? nm_file_name : "not found")); | |
68d69835 JM |
1594 | #ifdef LDD_SUFFIX |
1595 | fprintf (stderr, "ldd_file_name = %s\n", | |
1596 | (ldd_file_name ? ldd_file_name : "not found")); | |
1597 | #endif | |
a1549b15 RS |
1598 | fprintf (stderr, "strip_file_name = %s\n", |
1599 | (strip_file_name ? strip_file_name : "not found")); | |
1600 | fprintf (stderr, "c_file = %s\n", | |
1601 | (c_file ? c_file : "not found")); | |
1602 | fprintf (stderr, "o_file = %s\n", | |
1603 | (o_file ? o_file : "not found")); | |
ed5b9462 RS |
1604 | |
1605 | ptr = getenv ("COLLECT_GCC_OPTIONS"); | |
1606 | if (ptr) | |
1607 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
1608 | ||
1609 | ptr = getenv ("COLLECT_GCC"); | |
1610 | if (ptr) | |
1611 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
1612 | ||
1613 | ptr = getenv ("COMPILER_PATH"); | |
1614 | if (ptr) | |
1615 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
1616 | ||
512b62fb | 1617 | ptr = getenv (LIBRARY_PATH_ENV); |
ed5b9462 | 1618 | if (ptr) |
512b62fb | 1619 | fprintf (stderr, "%-20s= %s\n", LIBRARY_PATH_ENV, ptr); |
ed5b9462 RS |
1620 | |
1621 | fprintf (stderr, "\n"); | |
4e81a331 RS |
1622 | } |
1623 | ||
aa32d841 | 1624 | /* Load the program, searching all libraries and attempting to provide |
7e49a4b3 | 1625 | undefined symbols from repository information. |
b8698a0f | 1626 | |
7e49a4b3 | 1627 | If -r or they will be run via some other method, do not build the |
b8698a0f | 1628 | constructor or destructor list, just return now. */ |
7e49a4b3 OH |
1629 | { |
1630 | bool early_exit | |
1631 | = rflag || (! DO_COLLECT_EXPORT_LIST && ! do_collecting); | |
1632 | ||
1633 | /* Perform the first pass link now, if we're about to exit or if we need | |
1634 | to scan for things we haven't collected yet before pursuing further. | |
1635 | ||
1636 | On AIX, the latter typically includes nothing for shared objects or | |
1637 | frame tables for an executable, out of what the required early scan on | |
1638 | objects and libraries has performed above. In the !shared_obj case, we | |
1639 | expect the relevant tables to be dragged together with their associated | |
1640 | functions from precise cross reference insertions by the compiler. */ | |
b8698a0f | 1641 | |
7e49a4b3 | 1642 | if (early_exit || ld1_filter != SCAN_NOTHING) |
67f6e649 | 1643 | do_link (ld1_argv); |
b8698a0f | 1644 | |
7e49a4b3 OH |
1645 | if (early_exit) |
1646 | { | |
1647 | #ifdef COLLECT_EXPORT_LIST | |
1648 | /* Make sure we delete the export file we may have created. */ | |
1649 | if (export_file != 0 && export_file[0]) | |
1650 | maybe_unlink (export_file); | |
63f38a90 | 1651 | #endif |
c082f9f3 | 1652 | if (lto_mode != LTO_MODE_NONE) |
d7f09764 | 1653 | maybe_run_lto_and_relink (ld1_argv, object_lst, object, false); |
11afe8e8 | 1654 | else |
4098a6d4 | 1655 | post_ld_pass (/*temp_file*/false); |
d7f09764 | 1656 | |
7e49a4b3 OH |
1657 | return 0; |
1658 | } | |
1659 | } | |
4e81a331 | 1660 | |
7e49a4b3 OH |
1661 | /* Unless we have done it all already, examine the namelist and search for |
1662 | static constructors and destructors to call. Write the constructor and | |
1663 | destructor tables to a .s file and reload. */ | |
a3184468 | 1664 | |
7e49a4b3 OH |
1665 | if (ld1_filter != SCAN_NOTHING) |
1666 | scan_prog_file (output_file, PASS_FIRST, ld1_filter); | |
4e81a331 | 1667 | |
68d69835 JM |
1668 | #ifdef SCAN_LIBRARIES |
1669 | scan_libraries (output_file); | |
1670 | #endif | |
1671 | ||
4e81a331 RS |
1672 | if (debug) |
1673 | { | |
0f667308 MP |
1674 | notice_translated (ngettext ("%d constructor found\n", |
1675 | "%d constructors found\n", | |
1676 | constructors.number), | |
1677 | constructors.number); | |
1678 | notice_translated (ngettext ("%d destructor found\n", | |
1679 | "%d destructors found\n", | |
1680 | destructors.number), | |
1681 | destructors.number); | |
c3284718 RS |
1682 | notice_translated (ngettext ("%d frame table found\n", |
1683 | "%d frame tables found\n", | |
1684 | frame_tables.number), | |
0f667308 | 1685 | frame_tables.number); |
4e81a331 RS |
1686 | } |
1687 | ||
7e49a4b3 OH |
1688 | /* If the scan exposed nothing of special interest, there's no need to |
1689 | generate the glue code and relink so return now. */ | |
1690 | ||
68d69835 | 1691 | if (constructors.number == 0 && destructors.number == 0 |
0021b564 | 1692 | && frame_tables.number == 0 |
db126753 | 1693 | #if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST) |
68d69835 | 1694 | /* If we will be running these functions ourselves, we want to emit |
db126753 | 1695 | stubs into the shared library so that we do not have to relink |
68d69835 JM |
1696 | dependent programs when we add static objects. */ |
1697 | && ! shared_obj | |
1698 | #endif | |
1699 | ) | |
a87104d9 | 1700 | { |
67f6e649 | 1701 | /* Do link without additional code generation now if we didn't |
7e49a4b3 OH |
1702 | do it earlier for scanning purposes. */ |
1703 | if (ld1_filter == SCAN_NOTHING) | |
67f6e649 | 1704 | do_link (ld1_argv); |
7e49a4b3 | 1705 | |
d7f09764 DN |
1706 | if (lto_mode) |
1707 | maybe_run_lto_and_relink (ld1_argv, object_lst, object, false); | |
1708 | ||
a87104d9 MM |
1709 | /* Strip now if it was requested on the command line. */ |
1710 | if (strip_flag) | |
1711 | { | |
5ed6ace5 | 1712 | char **real_strip_argv = XCNEWVEC (char *, 3); |
67165eb3 ILT |
1713 | const char ** strip_argv = CONST_CAST2 (const char **, char **, |
1714 | real_strip_argv); | |
159b3be1 | 1715 | |
aee3a549 | 1716 | strip_argv[0] = strip_file_name; |
0cdd3ddd | 1717 | strip_argv[1] = output_file; |
a87104d9 | 1718 | strip_argv[2] = (char *) 0; |
5f0ad6a5 | 1719 | fork_execute ("strip", real_strip_argv, false); |
a87104d9 | 1720 | } |
eccd41bb RK |
1721 | |
1722 | #ifdef COLLECT_EXPORT_LIST | |
1723 | maybe_unlink (export_file); | |
1724 | #endif | |
4098a6d4 | 1725 | post_ld_pass (/*temp_file*/false); |
a87104d9 MM |
1726 | return 0; |
1727 | } | |
4e81a331 | 1728 | |
ec5c56db | 1729 | /* Sort ctor and dtor lists by priority. */ |
2ce3c6c6 JM |
1730 | sort_ids (&constructors); |
1731 | sort_ids (&destructors); | |
1732 | ||
c3284718 | 1733 | maybe_unlink (output_file); |
4e81a331 | 1734 | outf = fopen (c_file, "w"); |
0f41302f | 1735 | if (outf == (FILE *) 0) |
40fecdd6 | 1736 | fatal_error (input_location, "fopen %s: %m", c_file); |
4e81a331 RS |
1737 | |
1738 | write_c_file (outf, c_file); | |
1739 | ||
1740 | if (fclose (outf)) | |
40fecdd6 | 1741 | fatal_error (input_location, "fclose %s: %m", c_file); |
4e81a331 | 1742 | |
603b4064 RK |
1743 | /* Tell the linker that we have initializer and finalizer functions. */ |
1744 | #ifdef LD_INIT_SWITCH | |
c71791e0 | 1745 | #ifdef COLLECT_EXPORT_LIST |
d4c3ec27 | 1746 | *ld2++ = concat (LD_INIT_SWITCH, ":", initname, ":", fininame, NULL); |
c71791e0 | 1747 | #else |
603b4064 RK |
1748 | *ld2++ = LD_INIT_SWITCH; |
1749 | *ld2++ = initname; | |
1750 | *ld2++ = LD_FINI_SWITCH; | |
1751 | *ld2++ = fininame; | |
1752 | #endif | |
c71791e0 | 1753 | #endif |
603b4064 | 1754 | |
cbbbd917 JM |
1755 | #ifdef COLLECT_EXPORT_LIST |
1756 | if (shared_obj) | |
1757 | { | |
9d4d5d58 DE |
1758 | /* If we did not add export flag to link arguments before, add it to |
1759 | second link phase now. No new exports should have been added. */ | |
1760 | if (! exports.first) | |
d4c3ec27 | 1761 | *ld2++ = concat ("-bE:", export_file, NULL); |
9d4d5d58 | 1762 | |
44178879 DE |
1763 | #ifdef TARGET_AIX_VERSION |
1764 | add_to_list (&exports, aix_shared_initname); | |
1765 | add_to_list (&exports, aix_shared_fininame); | |
1766 | #endif | |
1767 | ||
aaef9b06 | 1768 | #ifndef LD_INIT_SWITCH |
cbbbd917 JM |
1769 | add_to_list (&exports, initname); |
1770 | add_to_list (&exports, fininame); | |
603b4064 RK |
1771 | add_to_list (&exports, "_GLOBAL__DI"); |
1772 | add_to_list (&exports, "_GLOBAL__DD"); | |
aaef9b06 | 1773 | #endif |
cbbbd917 | 1774 | exportf = fopen (export_file, "w"); |
0f41302f | 1775 | if (exportf == (FILE *) 0) |
40fecdd6 | 1776 | fatal_error (input_location, "fopen %s: %m", export_file); |
9d4d5d58 | 1777 | write_aix_file (exportf, exports.first); |
cbbbd917 | 1778 | if (fclose (exportf)) |
40fecdd6 | 1779 | fatal_error (input_location, "fclose %s: %m", export_file); |
cbbbd917 JM |
1780 | } |
1781 | #endif | |
1782 | ||
9d4d5d58 DE |
1783 | /* End of arguments to second link phase. */ |
1784 | *ld2 = (char*) 0; | |
1785 | ||
4e81a331 RS |
1786 | if (debug) |
1787 | { | |
0cdd3ddd RS |
1788 | fprintf (stderr, "\n========== output_file = %s, c_file = %s\n", |
1789 | output_file, c_file); | |
4e81a331 RS |
1790 | write_c_file (stderr, "stderr"); |
1791 | fprintf (stderr, "========== end of c_file\n\n"); | |
cbbbd917 JM |
1792 | #ifdef COLLECT_EXPORT_LIST |
1793 | fprintf (stderr, "\n========== export_file = %s\n", export_file); | |
9d4d5d58 | 1794 | write_aix_file (stderr, exports.first); |
cbbbd917 JM |
1795 | fprintf (stderr, "========== end of export_file\n\n"); |
1796 | #endif | |
4e81a331 RS |
1797 | } |
1798 | ||
1799 | /* Assemble the constructor and destructor tables. | |
0f41302f | 1800 | Link the tables in with the rest of the program. */ |
4e81a331 | 1801 | |
5f0ad6a5 | 1802 | fork_execute ("gcc", c_argv, at_file_supplied); |
db126753 | 1803 | #ifdef COLLECT_EXPORT_LIST |
67f6e649 ML |
1804 | /* On AIX we must call link because of possible templates resolution. */ |
1805 | do_link (ld2_argv); | |
d7f09764 DN |
1806 | |
1807 | if (lto_mode) | |
1808 | maybe_run_lto_and_relink (ld2_argv, object_lst, object, false); | |
db126753 | 1809 | #else |
67f6e649 | 1810 | /* Otherwise, simply call ld because link is already done. */ |
d7f09764 DN |
1811 | if (lto_mode) |
1812 | maybe_run_lto_and_relink (ld2_argv, object_lst, object, true); | |
1813 | else | |
11afe8e8 | 1814 | { |
5f0ad6a5 | 1815 | fork_execute ("ld", ld2_argv, HAVE_GNU_LD && at_file_supplied); |
4098a6d4 | 1816 | post_ld_pass (/*temp_file*/false); |
11afe8e8 | 1817 | } |
4e81a331 RS |
1818 | |
1819 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
1820 | constructors/destructors in shared libraries. */ | |
7e49a4b3 | 1821 | scan_prog_file (output_file, PASS_SECOND, SCAN_ALL); |
159b3be1 | 1822 | #endif |
4e81a331 | 1823 | |
4e81a331 RS |
1824 | return 0; |
1825 | } | |
1826 | ||
4e81a331 | 1827 | \f |
9178a345 OH |
1828 | /* Unlink FILE unless we are debugging or this is the output_file |
1829 | and we may not unlink it. */ | |
4e81a331 | 1830 | |
5f0ad6a5 | 1831 | void |
159b3be1 | 1832 | maybe_unlink (const char *file) |
4e81a331 | 1833 | { |
513825f0 | 1834 | if (save_temps && file_exists (file)) |
9178a345 | 1835 | { |
513825f0 IS |
1836 | if (verbose) |
1837 | notice ("[Leaving %s]\n", file); | |
9178a345 OH |
1838 | return; |
1839 | } | |
1840 | ||
1841 | if (file == output_file && !may_unlink_output_file) | |
1842 | return; | |
1843 | ||
1844 | unlink_if_ordinary (file); | |
4e81a331 RS |
1845 | } |
1846 | ||
d7f09764 DN |
1847 | /* Call maybe_unlink on the NULL-terminated list, FILE_LIST. */ |
1848 | ||
1849 | static void | |
1850 | maybe_unlink_list (char **file_list) | |
1851 | { | |
1852 | char **tmp = file_list; | |
1853 | ||
1854 | while (*tmp) | |
1855 | maybe_unlink (*(tmp++)); | |
1856 | } | |
1857 | ||
4e81a331 | 1858 | \f |
2ce3c6c6 JM |
1859 | static long sequence_number = 0; |
1860 | ||
4e81a331 RS |
1861 | /* Add a name to a linked list. */ |
1862 | ||
1863 | static void | |
159b3be1 | 1864 | add_to_list (struct head *head_ptr, const char *name) |
4e81a331 | 1865 | { |
e1e4cdc4 KG |
1866 | struct id *newid |
1867 | = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1); | |
0393b857 | 1868 | struct id *p; |
4e81a331 RS |
1869 | strcpy (newid->name, name); |
1870 | ||
1871 | if (head_ptr->first) | |
1872 | head_ptr->last->next = newid; | |
1873 | else | |
1874 | head_ptr->first = newid; | |
1875 | ||
0393b857 JM |
1876 | /* Check for duplicate symbols. */ |
1877 | for (p = head_ptr->first; | |
1878 | strcmp (name, p->name) != 0; | |
1879 | p = p->next) | |
1880 | ; | |
1881 | if (p != newid) | |
1882 | { | |
1883 | head_ptr->last->next = 0; | |
1884 | free (newid); | |
1885 | return; | |
1886 | } | |
1887 | ||
1888 | newid->sequence = ++sequence_number; | |
4e81a331 RS |
1889 | head_ptr->last = newid; |
1890 | head_ptr->number++; | |
1891 | } | |
1892 | ||
2ce3c6c6 JM |
1893 | /* Grab the init priority number from an init function name that |
1894 | looks like "_GLOBAL_.I.12345.foo". */ | |
1895 | ||
1896 | static int | |
159b3be1 | 1897 | extract_init_priority (const char *name) |
2ce3c6c6 | 1898 | { |
6f87c7d8 | 1899 | int pos = 0, pri; |
2ce3c6c6 | 1900 | |
44178879 DE |
1901 | #ifdef TARGET_AIX_VERSION |
1902 | /* Run dependent module initializers before any constructors in this | |
1903 | module. */ | |
1904 | switch (is_ctor_dtor (name)) | |
1905 | { | |
1906 | case SYM_AIXI: | |
1907 | case SYM_AIXD: | |
1908 | return INT_MIN; | |
1909 | default: | |
1910 | break; | |
1911 | } | |
1912 | #endif | |
1913 | ||
2ce3c6c6 JM |
1914 | while (name[pos] == '_') |
1915 | ++pos; | |
1916 | pos += 10; /* strlen ("GLOBAL__X_") */ | |
1917 | ||
ec5c56db | 1918 | /* Extract init_p number from ctor/dtor name. */ |
6f87c7d8 JM |
1919 | pri = atoi (name + pos); |
1920 | return pri ? pri : DEFAULT_INIT_PRIORITY; | |
2ce3c6c6 JM |
1921 | } |
1922 | ||
1923 | /* Insertion sort the ids from ctor/dtor list HEAD_PTR in descending order. | |
1924 | ctors will be run from right to left, dtors from left to right. */ | |
1925 | ||
1926 | static void | |
159b3be1 | 1927 | sort_ids (struct head *head_ptr) |
2ce3c6c6 JM |
1928 | { |
1929 | /* id holds the current element to insert. id_next holds the next | |
1930 | element to insert. id_ptr iterates through the already sorted elements | |
1931 | looking for the place to insert id. */ | |
1932 | struct id *id, *id_next, **id_ptr; | |
2ce3c6c6 JM |
1933 | |
1934 | id = head_ptr->first; | |
1935 | ||
1936 | /* We don't have any sorted elements yet. */ | |
1937 | head_ptr->first = NULL; | |
1938 | ||
1939 | for (; id; id = id_next) | |
1940 | { | |
1941 | id_next = id->next; | |
1942 | id->sequence = extract_init_priority (id->name); | |
1943 | ||
1944 | for (id_ptr = &(head_ptr->first); ; id_ptr = &((*id_ptr)->next)) | |
1945 | if (*id_ptr == NULL | |
1946 | /* If the sequence numbers are the same, we put the id from the | |
1947 | file later on the command line later in the list. */ | |
1948 | || id->sequence > (*id_ptr)->sequence | |
1949 | /* Hack: do lexical compare, too. | |
1950 | || (id->sequence == (*id_ptr)->sequence | |
c22cacf3 | 1951 | && strcmp (id->name, (*id_ptr)->name) > 0) */ |
2ce3c6c6 JM |
1952 | ) |
1953 | { | |
1954 | id->next = *id_ptr; | |
1955 | *id_ptr = id; | |
1956 | break; | |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* Now set the sequence numbers properly so write_c_file works. */ | |
1961 | for (id = head_ptr->first; id; id = id->next) | |
1962 | id->sequence = ++sequence_number; | |
1963 | } | |
1964 | ||
4e81a331 RS |
1965 | /* Write: `prefix', the names on list LIST, `suffix'. */ |
1966 | ||
1967 | static void | |
159b3be1 | 1968 | write_list (FILE *stream, const char *prefix, struct id *list) |
4e81a331 RS |
1969 | { |
1970 | while (list) | |
1971 | { | |
1972 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
1973 | list = list->next; | |
1974 | } | |
1975 | } | |
1976 | ||
40c3a857 | 1977 | #ifdef COLLECT_EXPORT_LIST |
db126753 DE |
1978 | /* This function is really used only on AIX, but may be useful. */ |
1979 | static int | |
159b3be1 | 1980 | is_in_list (const char *prefix, struct id *list) |
db126753 DE |
1981 | { |
1982 | while (list) | |
1983 | { | |
1984 | if (!strcmp (prefix, list->name)) return 1; | |
1985 | list = list->next; | |
1986 | } | |
1987 | return 0; | |
1988 | } | |
c3fb23f4 | 1989 | #endif /* COLLECT_EXPORT_LIST */ |
db126753 DE |
1990 | |
1991 | /* Added for debugging purpose. */ | |
487a6e06 | 1992 | #ifdef COLLECT_EXPORT_LIST |
db126753 | 1993 | static void |
159b3be1 | 1994 | dump_list (FILE *stream, const char *prefix, struct id *list) |
db126753 DE |
1995 | { |
1996 | while (list) | |
1997 | { | |
1998 | fprintf (stream, "%s%s,\n", prefix, list->name); | |
1999 | list = list->next; | |
2000 | } | |
2001 | } | |
487a6e06 | 2002 | #endif |
db126753 | 2003 | |
487a6e06 | 2004 | #if 0 |
db126753 | 2005 | static void |
159b3be1 | 2006 | dump_prefix_list (FILE *stream, const char *prefix, struct prefix_list *list) |
db126753 DE |
2007 | { |
2008 | while (list) | |
2009 | { | |
2010 | fprintf (stream, "%s%s,\n", prefix, list->prefix); | |
2011 | list = list->next; | |
2012 | } | |
2013 | } | |
487a6e06 | 2014 | #endif |
db126753 | 2015 | |
4e81a331 | 2016 | static void |
159b3be1 | 2017 | write_list_with_asm (FILE *stream, const char *prefix, struct id *list) |
4e81a331 RS |
2018 | { |
2019 | while (list) | |
2020 | { | |
c7af43d8 | 2021 | fprintf (stream, "%sx%d __asm__ (\"%s\");\n", |
4e81a331 RS |
2022 | prefix, list->sequence, list->name); |
2023 | list = list->next; | |
2024 | } | |
2025 | } | |
2026 | ||
68d69835 JM |
2027 | /* Write out the constructor and destructor tables statically (for a shared |
2028 | object), along with the functions to execute them. */ | |
2029 | ||
2030 | static void | |
159b3be1 | 2031 | write_c_file_stat (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
68d69835 | 2032 | { |
d4058195 KG |
2033 | const char *p, *q; |
2034 | char *prefix, *r; | |
0021b564 | 2035 | int frames = (frame_tables.number > 0); |
68d69835 JM |
2036 | |
2037 | /* Figure out name of output_file, stripping off .so version. */ | |
ba78087b KT |
2038 | q = p = lbasename (output_file); |
2039 | ||
68d69835 JM |
2040 | while (q) |
2041 | { | |
9473c522 | 2042 | q = strchr (q,'.'); |
68d69835 JM |
2043 | if (q == 0) |
2044 | { | |
2045 | q = p + strlen (p); | |
2046 | break; | |
2047 | } | |
2048 | else | |
2049 | { | |
ba78087b | 2050 | if (filename_ncmp (q, SHLIB_SUFFIX, strlen (SHLIB_SUFFIX)) == 0) |
68d69835 | 2051 | { |
881466d8 | 2052 | q += strlen (SHLIB_SUFFIX); |
68d69835 JM |
2053 | break; |
2054 | } | |
2055 | else | |
2056 | q++; | |
2057 | } | |
2058 | } | |
2059 | /* q points to null at end of the string (or . of the .so version) */ | |
5ed6ace5 | 2060 | prefix = XNEWVEC (char, q - p + 1); |
68d69835 JM |
2061 | strncpy (prefix, p, q - p); |
2062 | prefix[q - p] = 0; | |
d4058195 KG |
2063 | for (r = prefix; *r; r++) |
2064 | if (!ISALNUM ((unsigned char)*r)) | |
2065 | *r = '_'; | |
68d69835 | 2066 | if (debug) |
ab87f8c8 JL |
2067 | notice ("\nwrite_c_file - output name is %s, prefix is %s\n", |
2068 | output_file, prefix); | |
68d69835 | 2069 | |
d4c3ec27 KG |
2070 | initname = concat ("_GLOBAL__FI_", prefix, NULL); |
2071 | fininame = concat ("_GLOBAL__FD_", prefix, NULL); | |
44178879 DE |
2072 | #ifdef TARGET_AIX_VERSION |
2073 | aix_shared_initname = concat ("_GLOBAL__AIXI_", prefix, NULL); | |
2074 | aix_shared_fininame = concat ("_GLOBAL__AIXD_", prefix, NULL); | |
2075 | #endif | |
68d69835 JM |
2076 | |
2077 | free (prefix); | |
2078 | ||
f9da5064 | 2079 | /* Write the tables as C code. */ |
68d69835 | 2080 | |
44178879 DE |
2081 | /* This count variable is used to prevent multiple calls to the |
2082 | constructors/destructors. | |
2083 | This guard against multiple calls is important on AIX as the initfini | |
2084 | functions are deliberately invoked multiple times as part of the | |
2085 | mechanisms GCC uses to order constructors across different dependent | |
2086 | shared libraries (see config/rs6000/aix.h). | |
2087 | */ | |
68d69835 JM |
2088 | fprintf (stream, "static int count;\n"); |
2089 | fprintf (stream, "typedef void entry_pt();\n"); | |
2090 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); | |
0021b564 JM |
2091 | |
2092 | if (frames) | |
2093 | { | |
2094 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
2095 | ||
2096 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
2097 | write_list (stream, "\t\t&", frame_tables.first); | |
2098 | fprintf (stream, "\t0\n};\n"); | |
2099 | ||
956d6950 JL |
2100 | /* This must match what's in frame.h. */ |
2101 | fprintf (stream, "struct object {\n"); | |
2102 | fprintf (stream, " void *pc_begin;\n"); | |
2103 | fprintf (stream, " void *pc_end;\n"); | |
2104 | fprintf (stream, " void *fde_begin;\n"); | |
2105 | fprintf (stream, " void *fde_array;\n"); | |
14cd4d23 | 2106 | fprintf (stream, " __SIZE_TYPE__ count;\n"); |
956d6950 JL |
2107 | fprintf (stream, " struct object *next;\n"); |
2108 | fprintf (stream, "};\n"); | |
2109 | ||
04218b35 | 2110 | fprintf (stream, "extern void __register_frame_info_table_bases (void *, struct object *, void *tbase, void *dbase);\n"); |
6d8ccdbb | 2111 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
a3fd4e75 | 2112 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
04218b35 AD |
2113 | #ifdef TARGET_AIX_VERSION |
2114 | fprintf (stream, "extern void *__gcc_unwind_dbase;\n"); | |
2115 | #endif | |
0021b564 JM |
2116 | |
2117 | fprintf (stream, "static void reg_frame () {\n"); | |
956d6950 | 2118 | fprintf (stream, "\tstatic struct object ob;\n"); |
04218b35 AD |
2119 | #ifdef TARGET_AIX_VERSION |
2120 | /* Use __gcc_unwind_dbase as the base address for data on AIX. | |
2121 | This might not be the start of the segment, signed offsets assumed. | |
2122 | */ | |
2123 | fprintf (stream, "\t__register_frame_info_table_bases (frame_table, &ob, (void *)0, &__gcc_unwind_dbase);\n"); | |
2124 | #else | |
6d8ccdbb | 2125 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
04218b35 | 2126 | #endif |
0021b564 JM |
2127 | fprintf (stream, "\t}\n"); |
2128 | ||
2129 | fprintf (stream, "static void dereg_frame () {\n"); | |
6d8ccdbb | 2130 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
0021b564 JM |
2131 | fprintf (stream, "\t}\n"); |
2132 | } | |
2133 | ||
68d69835 | 2134 | fprintf (stream, "void %s() {\n", initname); |
0021b564 | 2135 | if (constructors.number > 0 || frames) |
68d69835 JM |
2136 | { |
2137 | fprintf (stream, "\tstatic entry_pt *ctors[] = {\n"); | |
2138 | write_list (stream, "\t\t", constructors.first); | |
0021b564 JM |
2139 | if (frames) |
2140 | fprintf (stream, "\treg_frame,\n"); | |
68d69835 JM |
2141 | fprintf (stream, "\t};\n"); |
2142 | fprintf (stream, "\tentry_pt **p;\n"); | |
2143 | fprintf (stream, "\tif (count++ != 0) return;\n"); | |
0021b564 | 2144 | fprintf (stream, "\tp = ctors + %d;\n", constructors.number + frames); |
68d69835 JM |
2145 | fprintf (stream, "\twhile (p > ctors) (*--p)();\n"); |
2146 | } | |
603b4064 RK |
2147 | else |
2148 | fprintf (stream, "\t++count;\n"); | |
68d69835 JM |
2149 | fprintf (stream, "}\n"); |
2150 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); | |
2151 | fprintf (stream, "void %s() {\n", fininame); | |
0021b564 | 2152 | if (destructors.number > 0 || frames) |
68d69835 JM |
2153 | { |
2154 | fprintf (stream, "\tstatic entry_pt *dtors[] = {\n"); | |
2155 | write_list (stream, "\t\t", destructors.first); | |
0021b564 JM |
2156 | if (frames) |
2157 | fprintf (stream, "\tdereg_frame,\n"); | |
68d69835 JM |
2158 | fprintf (stream, "\t};\n"); |
2159 | fprintf (stream, "\tentry_pt **p;\n"); | |
2160 | fprintf (stream, "\tif (--count != 0) return;\n"); | |
2161 | fprintf (stream, "\tp = dtors;\n"); | |
2162 | fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n", | |
0021b564 | 2163 | destructors.number + frames); |
68d69835 JM |
2164 | } |
2165 | fprintf (stream, "}\n"); | |
2166 | ||
603b4064 RK |
2167 | if (shared_obj) |
2168 | { | |
c3284718 RS |
2169 | COLLECT_SHARED_INIT_FUNC (stream, initname); |
2170 | COLLECT_SHARED_FINI_FUNC (stream, fininame); | |
603b4064 | 2171 | } |
68d69835 JM |
2172 | } |
2173 | ||
0f41302f | 2174 | /* Write the constructor/destructor tables. */ |
4e81a331 | 2175 | |
081f5e7e | 2176 | #ifndef LD_INIT_SWITCH |
4e81a331 | 2177 | static void |
159b3be1 | 2178 | write_c_file_glob (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
4e81a331 | 2179 | { |
f9da5064 | 2180 | /* Write the tables as C code. */ |
4e81a331 | 2181 | |
0021b564 JM |
2182 | int frames = (frame_tables.number > 0); |
2183 | ||
4e81a331 | 2184 | fprintf (stream, "typedef void entry_pt();\n\n"); |
159b3be1 | 2185 | |
17704846 | 2186 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); |
0021b564 JM |
2187 | |
2188 | if (frames) | |
2189 | { | |
2190 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
2191 | ||
2192 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
2193 | write_list (stream, "\t\t&", frame_tables.first); | |
2194 | fprintf (stream, "\t0\n};\n"); | |
2195 | ||
5a5ab947 PE |
2196 | /* This must match what's in frame.h. */ |
2197 | fprintf (stream, "struct object {\n"); | |
2198 | fprintf (stream, " void *pc_begin;\n"); | |
2199 | fprintf (stream, " void *pc_end;\n"); | |
2200 | fprintf (stream, " void *fde_begin;\n"); | |
2201 | fprintf (stream, " void *fde_array;\n"); | |
2202 | fprintf (stream, " __SIZE_TYPE__ count;\n"); | |
2203 | fprintf (stream, " struct object *next;\n"); | |
2204 | fprintf (stream, "};\n"); | |
2205 | ||
6d8ccdbb | 2206 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
a3fd4e75 | 2207 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
0021b564 JM |
2208 | |
2209 | fprintf (stream, "static void reg_frame () {\n"); | |
5a5ab947 | 2210 | fprintf (stream, "\tstatic struct object ob;\n"); |
6d8ccdbb | 2211 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
0021b564 JM |
2212 | fprintf (stream, "\t}\n"); |
2213 | ||
2214 | fprintf (stream, "static void dereg_frame () {\n"); | |
6d8ccdbb | 2215 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
0021b564 JM |
2216 | fprintf (stream, "\t}\n"); |
2217 | } | |
2218 | ||
4e81a331 | 2219 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); |
0021b564 | 2220 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number + frames); |
ed5b9462 | 2221 | write_list (stream, "\t", constructors.first); |
0021b564 JM |
2222 | if (frames) |
2223 | fprintf (stream, "\treg_frame,\n"); | |
4e81a331 RS |
2224 | fprintf (stream, "\t0\n};\n\n"); |
2225 | ||
17704846 | 2226 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); |
4e81a331 RS |
2227 | |
2228 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
0021b564 | 2229 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number + frames); |
ed5b9462 | 2230 | write_list (stream, "\t", destructors.first); |
0021b564 JM |
2231 | if (frames) |
2232 | fprintf (stream, "\tdereg_frame,\n"); | |
4e81a331 RS |
2233 | fprintf (stream, "\t0\n};\n\n"); |
2234 | ||
d6cf3187 RS |
2235 | fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN); |
2236 | fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN); | |
4e81a331 | 2237 | } |
081f5e7e | 2238 | #endif /* ! LD_INIT_SWITCH */ |
4e81a331 | 2239 | |
68d69835 | 2240 | static void |
159b3be1 | 2241 | write_c_file (FILE *stream, const char *name) |
68d69835 | 2242 | { |
603b4064 RK |
2243 | #ifndef LD_INIT_SWITCH |
2244 | if (! shared_obj) | |
68d69835 | 2245 | write_c_file_glob (stream, name); |
603b4064 RK |
2246 | else |
2247 | #endif | |
2248 | write_c_file_stat (stream, name); | |
68d69835 | 2249 | } |
cbbbd917 | 2250 | |
db126753 | 2251 | #ifdef COLLECT_EXPORT_LIST |
cbbbd917 | 2252 | static void |
159b3be1 | 2253 | write_aix_file (FILE *stream, struct id *list) |
db126753 | 2254 | { |
db126753 | 2255 | for (; list; list = list->next) |
9d4d5d58 DE |
2256 | { |
2257 | fputs (list->name, stream); | |
2258 | putc ('\n', stream); | |
2259 | } | |
db126753 DE |
2260 | } |
2261 | #endif | |
4e81a331 | 2262 | \f |
ed5b9462 | 2263 | #ifdef OBJECT_FORMAT_NONE |
4e81a331 | 2264 | |
c082f9f3 | 2265 | /* Check to make sure the file is an LTO object file. */ |
d7f09764 | 2266 | |
4098a6d4 IS |
2267 | static int |
2268 | has_lto_section (void *data, const char *name ATTRIBUTE_UNUSED, | |
2269 | off_t offset ATTRIBUTE_UNUSED, | |
2270 | off_t length ATTRIBUTE_UNUSED) | |
2271 | { | |
2272 | int *found = (int *) data; | |
2273 | ||
2274 | if (strncmp (name, LTO_SECTION_NAME_PREFIX, | |
2275 | sizeof (LTO_SECTION_NAME_PREFIX) - 1) != 0) | |
2276 | { | |
2277 | if (strncmp (name, OFFLOAD_SECTION_NAME_PREFIX, | |
2278 | sizeof (OFFLOAD_SECTION_NAME_PREFIX) - 1) != 0) | |
2279 | return 1; | |
2280 | } | |
2281 | ||
2282 | *found = 1; | |
2283 | ||
2284 | /* Stop iteration. */ | |
2285 | return 0; | |
2286 | } | |
2287 | ||
d7f09764 | 2288 | static bool |
4098a6d4 | 2289 | is_lto_object_file (const char *prog_name) |
d7f09764 | 2290 | { |
4098a6d4 IS |
2291 | const char *errmsg; |
2292 | int err; | |
2293 | int found = 0; | |
2294 | off_t inoff = 0; | |
2295 | int infd = open (prog_name, O_RDONLY | O_BINARY); | |
c082f9f3 | 2296 | |
4098a6d4 IS |
2297 | if (infd == -1) |
2298 | return false; | |
d7f09764 | 2299 | |
4098a6d4 IS |
2300 | simple_object_read *inobj = simple_object_start_read (infd, inoff, |
2301 | LTO_SEGMENT_NAME, | |
2302 | &errmsg, &err); | |
2303 | if (!inobj) | |
d7f09764 | 2304 | return false; |
c082f9f3 | 2305 | |
4098a6d4 IS |
2306 | errmsg = simple_object_find_sections (inobj, has_lto_section, |
2307 | (void *) &found, &err); | |
2308 | if (! errmsg && found) | |
c082f9f3 | 2309 | return true; |
c082f9f3 | 2310 | |
4098a6d4 | 2311 | if (errmsg) |
a9c697b8 | 2312 | fatal_error (0, "%s: %s", errmsg, xstrerror (err)); |
c082f9f3 | 2313 | return false; |
d7f09764 DN |
2314 | } |
2315 | ||
ed5b9462 | 2316 | /* Generic version to scan the name list of the loaded program for |
7e49a4b3 | 2317 | the symbols g++ uses for static constructors and destructors. */ |
4e81a331 RS |
2318 | |
2319 | static void | |
7e49a4b3 OH |
2320 | scan_prog_file (const char *prog_name, scanpass which_pass, |
2321 | scanfilter filter) | |
4e81a331 | 2322 | { |
159b3be1 | 2323 | void (*int_handler) (int); |
1fff69c9 | 2324 | #ifdef SIGQUIT |
159b3be1 | 2325 | void (*quit_handler) (int); |
1fff69c9 | 2326 | #endif |
d4058195 | 2327 | char *real_nm_argv[4]; |
67165eb3 | 2328 | const char **nm_argv = CONST_CAST2 (const char **, char**, real_nm_argv); |
4e81a331 | 2329 | int argc = 0; |
1fff69c9 ILT |
2330 | struct pex_obj *pex; |
2331 | const char *errmsg; | |
2332 | int err; | |
4e81a331 RS |
2333 | char *p, buf[1024]; |
2334 | FILE *inf; | |
2335 | ||
68d69835 | 2336 | if (which_pass == PASS_SECOND) |
4e81a331 RS |
2337 | return; |
2338 | ||
3bec79c5 | 2339 | /* LTO objects must be in a known format. This check prevents |
d7f09764 | 2340 | us from accepting an archive containing LTO objects, which |
073a8998 | 2341 | gcc cannot currently handle. */ |
4098a6d4 IS |
2342 | if (which_pass == PASS_LTOINFO) |
2343 | { | |
2344 | if(is_lto_object_file (prog_name)) { | |
2345 | add_lto_object (<o_objects, prog_name); | |
2346 | } | |
2347 | return; | |
2348 | } | |
d7f09764 | 2349 | |
db126753 | 2350 | /* If we do not have an `nm', complain. */ |
bb59f9a6 | 2351 | if (nm_file_name == 0) |
904f3daa | 2352 | fatal_error (input_location, "cannot find %<nm%>"); |
bb59f9a6 | 2353 | |
68d69835 | 2354 | nm_argv[argc++] = nm_file_name; |
4e81a331 | 2355 | if (NM_FLAGS[0] != '\0') |
ed5b9462 | 2356 | nm_argv[argc++] = NM_FLAGS; |
4e81a331 | 2357 | |
ed5b9462 | 2358 | nm_argv[argc++] = prog_name; |
0f41302f | 2359 | nm_argv[argc++] = (char *) 0; |
4e81a331 | 2360 | |
4e81a331 | 2361 | /* Trace if needed. */ |
608508a6 | 2362 | if (verbose) |
4e81a331 | 2363 | { |
d4058195 KG |
2364 | const char **p_argv; |
2365 | const char *str; | |
4e81a331 | 2366 | |
0f41302f | 2367 | for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) |
4e81a331 RS |
2368 | fprintf (stderr, " %s", str); |
2369 | ||
2370 | fprintf (stderr, "\n"); | |
2371 | } | |
2372 | ||
2373 | fflush (stdout); | |
2374 | fflush (stderr); | |
2375 | ||
1fff69c9 ILT |
2376 | pex = pex_init (PEX_USE_PIPES, "collect2", NULL); |
2377 | if (pex == NULL) | |
a9c697b8 | 2378 | fatal_error (input_location, "%<pex_init%> failed: %m"); |
4e81a331 | 2379 | |
d7f09764 DN |
2380 | errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, HOST_BIT_BUCKET, |
2381 | &err); | |
1fff69c9 | 2382 | if (errmsg != NULL) |
4e81a331 | 2383 | { |
1fff69c9 ILT |
2384 | if (err != 0) |
2385 | { | |
2386 | errno = err; | |
40fecdd6 | 2387 | fatal_error (input_location, "%s: %m", _(errmsg)); |
1fff69c9 ILT |
2388 | } |
2389 | else | |
40fecdd6 | 2390 | fatal_error (input_location, errmsg); |
4e81a331 RS |
2391 | } |
2392 | ||
159b3be1 | 2393 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
8ab861c7 | 2394 | #ifdef SIGQUIT |
159b3be1 | 2395 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
8ab861c7 | 2396 | #endif |
4e81a331 | 2397 | |
1fff69c9 ILT |
2398 | inf = pex_read_output (pex, 0); |
2399 | if (inf == NULL) | |
a9c697b8 | 2400 | fatal_error (input_location, "cannot open nm output: %m"); |
4e81a331 RS |
2401 | |
2402 | if (debug) | |
4098a6d4 | 2403 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); |
4e81a331 RS |
2404 | |
2405 | /* Read each line of nm output. */ | |
0f41302f | 2406 | while (fgets (buf, sizeof buf, inf) != (char *) 0) |
4e81a331 RS |
2407 | { |
2408 | int ch, ch2; | |
ed5b9462 | 2409 | char *name, *end; |
4e81a331 | 2410 | |
d7f09764 DN |
2411 | if (debug) |
2412 | fprintf (stderr, "\t%s\n", buf); | |
2413 | ||
4e81a331 | 2414 | /* If it contains a constructor or destructor name, add the name |
7e49a4b3 OH |
2415 | to the appropriate list unless this is a kind of symbol we're |
2416 | not supposed to even consider. */ | |
4e81a331 RS |
2417 | |
2418 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
68d69835 JM |
2419 | if (ch == ' ' && p[1] == 'U' && p[2] == ' ') |
2420 | break; | |
4e81a331 | 2421 | |
68d69835 | 2422 | if (ch != '_') |
4e81a331 | 2423 | continue; |
159b3be1 | 2424 | |
ed5b9462 RS |
2425 | name = p; |
2426 | /* Find the end of the symbol name. | |
db126753 | 2427 | Do not include `|', because Encore nm can tack that on the end. */ |
e9a780ec | 2428 | for (end = p; (ch2 = *end) != '\0' && !ISSPACE (ch2) && ch2 != '|'; |
ed5b9462 RS |
2429 | end++) |
2430 | continue; | |
4e81a331 | 2431 | |
90d326bd | 2432 | |
4e81a331 | 2433 | *end = '\0'; |
44178879 | 2434 | |
ed5b9462 | 2435 | switch (is_ctor_dtor (name)) |
4e81a331 | 2436 | { |
4326ea40 | 2437 | case SYM_CTOR: |
7e49a4b3 OH |
2438 | if (! (filter & SCAN_CTOR)) |
2439 | break; | |
68d69835 JM |
2440 | if (which_pass != PASS_LIB) |
2441 | add_to_list (&constructors, name); | |
ed5b9462 | 2442 | break; |
4e81a331 | 2443 | |
4326ea40 | 2444 | case SYM_DTOR: |
7e49a4b3 OH |
2445 | if (! (filter & SCAN_DTOR)) |
2446 | break; | |
68d69835 JM |
2447 | if (which_pass != PASS_LIB) |
2448 | add_to_list (&destructors, name); | |
2449 | break; | |
2450 | ||
4326ea40 | 2451 | case SYM_INIT: |
7e49a4b3 OH |
2452 | if (! (filter & SCAN_INIT)) |
2453 | break; | |
68d69835 | 2454 | if (which_pass != PASS_LIB) |
40fecdd6 JM |
2455 | fatal_error (input_location, "init function found in object %s", |
2456 | prog_name); | |
35e530c5 | 2457 | #ifndef LD_INIT_SWITCH |
68d69835 | 2458 | add_to_list (&constructors, name); |
35e530c5 | 2459 | #endif |
68d69835 JM |
2460 | break; |
2461 | ||
4326ea40 | 2462 | case SYM_FINI: |
7e49a4b3 OH |
2463 | if (! (filter & SCAN_FINI)) |
2464 | break; | |
68d69835 | 2465 | if (which_pass != PASS_LIB) |
40fecdd6 JM |
2466 | fatal_error (input_location, "fini function found in object %s", |
2467 | prog_name); | |
35e530c5 | 2468 | #ifndef LD_FINI_SWITCH |
ed5b9462 | 2469 | add_to_list (&destructors, name); |
35e530c5 | 2470 | #endif |
ed5b9462 | 2471 | break; |
4e81a331 | 2472 | |
4326ea40 | 2473 | case SYM_DWEH: |
7e49a4b3 OH |
2474 | if (! (filter & SCAN_DWEH)) |
2475 | break; | |
0021b564 JM |
2476 | if (which_pass != PASS_LIB) |
2477 | add_to_list (&frame_tables, name); | |
6690d24c | 2478 | break; |
0021b564 | 2479 | |
ed5b9462 RS |
2480 | default: /* not a constructor or destructor */ |
2481 | continue; | |
4e81a331 | 2482 | } |
4e81a331 RS |
2483 | } |
2484 | ||
2485 | if (debug) | |
2486 | fprintf (stderr, "\n"); | |
2487 | ||
1fff69c9 | 2488 | do_wait (nm_file_name, pex); |
4e81a331 RS |
2489 | |
2490 | signal (SIGINT, int_handler); | |
8ab861c7 | 2491 | #ifdef SIGQUIT |
4e81a331 | 2492 | signal (SIGQUIT, quit_handler); |
8ab861c7 | 2493 | #endif |
4e81a331 RS |
2494 | } |
2495 | ||
68d69835 JM |
2496 | #ifdef LDD_SUFFIX |
2497 | ||
2498 | /* Use the List Dynamic Dependencies program to find shared libraries that | |
2499 | the output file depends upon and their initialization/finalization | |
2500 | routines, if any. */ | |
2501 | ||
159b3be1 AJ |
2502 | static void |
2503 | scan_libraries (const char *prog_name) | |
68d69835 JM |
2504 | { |
2505 | static struct head libraries; /* list of shared libraries found */ | |
2506 | struct id *list; | |
159b3be1 | 2507 | void (*int_handler) (int); |
1fff69c9 | 2508 | #ifdef SIGQUIT |
159b3be1 | 2509 | void (*quit_handler) (int); |
1fff69c9 | 2510 | #endif |
421cba92 | 2511 | char *real_ldd_argv[4]; |
db9369bb | 2512 | const char **ldd_argv = CONST_CAST2 (const char **, char **, real_ldd_argv); |
68d69835 | 2513 | int argc = 0; |
1fff69c9 ILT |
2514 | struct pex_obj *pex; |
2515 | const char *errmsg; | |
2516 | int err; | |
68d69835 JM |
2517 | char buf[1024]; |
2518 | FILE *inf; | |
2519 | ||
db126753 | 2520 | /* If we do not have an `ldd', complain. */ |
68d69835 JM |
2521 | if (ldd_file_name == 0) |
2522 | { | |
904f3daa | 2523 | error ("cannot find %<ldd%>"); |
68d69835 JM |
2524 | return; |
2525 | } | |
2526 | ||
2527 | ldd_argv[argc++] = ldd_file_name; | |
2528 | ldd_argv[argc++] = prog_name; | |
2529 | ldd_argv[argc++] = (char *) 0; | |
2530 | ||
68d69835 | 2531 | /* Trace if needed. */ |
608508a6 | 2532 | if (verbose) |
68d69835 | 2533 | { |
d4058195 KG |
2534 | const char **p_argv; |
2535 | const char *str; | |
68d69835 JM |
2536 | |
2537 | for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) | |
2538 | fprintf (stderr, " %s", str); | |
2539 | ||
2540 | fprintf (stderr, "\n"); | |
2541 | } | |
2542 | ||
2543 | fflush (stdout); | |
2544 | fflush (stderr); | |
2545 | ||
1fff69c9 ILT |
2546 | pex = pex_init (PEX_USE_PIPES, "collect2", NULL); |
2547 | if (pex == NULL) | |
40fecdd6 | 2548 | fatal_error (input_location, "pex_init failed: %m"); |
68d69835 | 2549 | |
1fff69c9 ILT |
2550 | errmsg = pex_run (pex, 0, ldd_file_name, real_ldd_argv, NULL, NULL, &err); |
2551 | if (errmsg != NULL) | |
68d69835 | 2552 | { |
1fff69c9 ILT |
2553 | if (err != 0) |
2554 | { | |
2555 | errno = err; | |
40fecdd6 | 2556 | fatal_error (input_location, "%s: %m", _(errmsg)); |
1fff69c9 ILT |
2557 | } |
2558 | else | |
40fecdd6 | 2559 | fatal_error (input_location, errmsg); |
68d69835 JM |
2560 | } |
2561 | ||
94d54276 | 2562 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
68d69835 | 2563 | #ifdef SIGQUIT |
94d54276 | 2564 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
68d69835 JM |
2565 | #endif |
2566 | ||
1fff69c9 ILT |
2567 | inf = pex_read_output (pex, 0); |
2568 | if (inf == NULL) | |
a9c697b8 | 2569 | fatal_error (input_location, "cannot open ldd output: %m"); |
68d69835 JM |
2570 | |
2571 | if (debug) | |
ab87f8c8 | 2572 | notice ("\nldd output with constructors/destructors.\n"); |
68d69835 JM |
2573 | |
2574 | /* Read each line of ldd output. */ | |
2575 | while (fgets (buf, sizeof buf, inf) != (char *) 0) | |
2576 | { | |
f5720527 | 2577 | int ch2; |
68d69835 JM |
2578 | char *name, *end, *p = buf; |
2579 | ||
0f41302f | 2580 | /* Extract names of libraries and add to list. */ |
68d69835 JM |
2581 | PARSE_LDD_OUTPUT (p); |
2582 | if (p == 0) | |
2583 | continue; | |
2584 | ||
2585 | name = p; | |
2586 | if (strncmp (name, "not found", sizeof ("not found") - 1) == 0) | |
40fecdd6 | 2587 | fatal_error (input_location, "dynamic dependency %s not found", buf); |
68d69835 | 2588 | |
0f41302f | 2589 | /* Find the end of the symbol name. */ |
159b3be1 | 2590 | for (end = p; |
e9a780ec | 2591 | (ch2 = *end) != '\0' && ch2 != '\n' && !ISSPACE (ch2) && ch2 != '|'; |
68d69835 JM |
2592 | end++) |
2593 | continue; | |
2594 | *end = '\0'; | |
2595 | ||
2596 | if (access (name, R_OK) == 0) | |
c22cacf3 | 2597 | add_to_list (&libraries, name); |
68d69835 | 2598 | else |
904f3daa ML |
2599 | fatal_error (input_location, "unable to open dynamic dependency " |
2600 | "%qs", buf); | |
68d69835 JM |
2601 | |
2602 | if (debug) | |
2603 | fprintf (stderr, "\t%s\n", buf); | |
2604 | } | |
2605 | if (debug) | |
2606 | fprintf (stderr, "\n"); | |
2607 | ||
1fff69c9 | 2608 | do_wait (ldd_file_name, pex); |
68d69835 JM |
2609 | |
2610 | signal (SIGINT, int_handler); | |
2611 | #ifdef SIGQUIT | |
2612 | signal (SIGQUIT, quit_handler); | |
2613 | #endif | |
2614 | ||
e0a21ab9 | 2615 | /* Now iterate through the library list adding their symbols to |
68d69835 JM |
2616 | the list. */ |
2617 | for (list = libraries.first; list; list = list->next) | |
91e1a80a | 2618 | scan_prog_file (list->name, PASS_LIB, SCAN_ALL); |
68d69835 JM |
2619 | } |
2620 | ||
2621 | #endif /* LDD_SUFFIX */ | |
68d69835 | 2622 | |
ed5b9462 RS |
2623 | #endif /* OBJECT_FORMAT_NONE */ |
2624 | ||
2625 | \f | |
2626 | /* | |
2627 | * COFF specific stuff. | |
2628 | */ | |
2629 | ||
2630 | #ifdef OBJECT_FORMAT_COFF | |
2631 | ||
c3284718 | 2632 | # define GCC_SYMBOLS(X) (HEADER (ldptr).f_nsyms) |
17704846 | 2633 | # define GCC_SYMENT SYMENT |
0eb31ee3 DE |
2634 | # if defined (C_WEAKEXT) |
2635 | # define GCC_OK_SYMBOL(X) \ | |
2636 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
c22cacf3 MS |
2637 | ((X).n_scnum > N_UNDEF) && \ |
2638 | (aix64_flag \ | |
2639 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2640 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
0eb31ee3 DE |
2641 | # define GCC_UNDEF_SYMBOL(X) \ |
2642 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
c22cacf3 | 2643 | ((X).n_scnum == N_UNDEF)) |
0eb31ee3 DE |
2644 | # else |
2645 | # define GCC_OK_SYMBOL(X) \ | |
2646 | (((X).n_sclass == C_EXT) && \ | |
c22cacf3 MS |
2647 | ((X).n_scnum > N_UNDEF) && \ |
2648 | (aix64_flag \ | |
2649 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2650 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
0eb31ee3 DE |
2651 | # define GCC_UNDEF_SYMBOL(X) \ |
2652 | (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF)) | |
2653 | # endif | |
17704846 JW |
2654 | # define GCC_SYMINC(X) ((X).n_numaux+1) |
2655 | # define GCC_SYMZERO(X) 0 | |
05dba9ee DE |
2656 | |
2657 | /* 0757 = U803XTOCMAGIC (AIX 4.3) and 0767 = U64_TOCMAGIC (AIX V5) */ | |
dfb636dc | 2658 | #if TARGET_AIX_VERSION >= 51 |
05dba9ee | 2659 | # define GCC_CHECK_HDR(X) \ |
3bf65591 DE |
2660 | (((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ |
2661 | || (HEADER (X).f_magic == 0767 && aix64_flag)) \ | |
2662 | && !(HEADER (X).f_flags & F_LOADONLY)) | |
05dba9ee | 2663 | #else |
f5e04914 | 2664 | # define GCC_CHECK_HDR(X) \ |
3bf65591 DE |
2665 | (((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ |
2666 | || (HEADER (X).f_magic == 0757 && aix64_flag)) \ | |
2667 | && !(HEADER (X).f_flags & F_LOADONLY)) | |
ed5b9462 RS |
2668 | #endif |
2669 | ||
4977bab6 ZW |
2670 | #ifdef COLLECT_EXPORT_LIST |
2671 | /* Array of standard AIX libraries which should not | |
2672 | be scanned for ctors/dtors. */ | |
2673 | static const char *const aix_std_libs[] = { | |
2674 | "/unix", | |
2675 | "/lib/libc.a", | |
2676 | "/lib/libm.a", | |
2677 | "/lib/libc_r.a", | |
2678 | "/lib/libm_r.a", | |
2679 | "/usr/lib/libc.a", | |
2680 | "/usr/lib/libm.a", | |
2681 | "/usr/lib/libc_r.a", | |
2682 | "/usr/lib/libm_r.a", | |
2683 | "/usr/lib/threads/libc.a", | |
2684 | "/usr/ccs/lib/libc.a", | |
2685 | "/usr/ccs/lib/libm.a", | |
2686 | "/usr/ccs/lib/libc_r.a", | |
2687 | "/usr/ccs/lib/libm_r.a", | |
2688 | NULL | |
2689 | }; | |
2690 | ||
2691 | /* This function checks the filename and returns 1 | |
2692 | if this name matches the location of a standard AIX library. */ | |
159b3be1 | 2693 | static int ignore_library (const char *); |
4977bab6 | 2694 | static int |
159b3be1 | 2695 | ignore_library (const char *name) |
4977bab6 | 2696 | { |
51136ae8 | 2697 | const char *const *p; |
781a1758 | 2698 | size_t length; |
51136ae8 | 2699 | |
781a1758 RS |
2700 | if (target_system_root[0] != '\0') |
2701 | { | |
2702 | length = strlen (target_system_root); | |
2703 | if (strncmp (name, target_system_root, length) != 0) | |
2704 | return 0; | |
2705 | name += length; | |
2706 | } | |
51136ae8 RS |
2707 | for (p = &aix_std_libs[0]; *p != NULL; ++p) |
2708 | if (strcmp (name, *p) == 0) | |
2709 | return 1; | |
4977bab6 ZW |
2710 | return 0; |
2711 | } | |
2712 | #endif /* COLLECT_EXPORT_LIST */ | |
2713 | ||
351df804 | 2714 | #if defined (HAVE_DECL_LDGETNAME) && !HAVE_DECL_LDGETNAME |
159b3be1 | 2715 | extern char *ldgetname (LDFILE *, GCC_SYMENT *); |
351df804 | 2716 | #endif |
ed5b9462 RS |
2717 | |
2718 | /* COFF version to scan the name list of the loaded program for | |
7e49a4b3 | 2719 | the symbols g++ uses for static constructors and destructors. */ |
ed5b9462 RS |
2720 | |
2721 | static void | |
7e49a4b3 OH |
2722 | scan_prog_file (const char *prog_name, scanpass which_pass, |
2723 | scanfilter filter) | |
ed5b9462 | 2724 | { |
f3c3d3df | 2725 | LDFILE *ldptr = NULL; |
ed5b9462 | 2726 | int sym_index, sym_count; |
db126753 | 2727 | int is_shared = 0; |
ed5b9462 | 2728 | |
ce79110f | 2729 | if (which_pass != PASS_FIRST && which_pass != PASS_OBJ) |
ed5b9462 RS |
2730 | return; |
2731 | ||
db126753 DE |
2732 | #ifdef COLLECT_EXPORT_LIST |
2733 | /* We do not need scanning for some standard C libraries. */ | |
2734 | if (which_pass == PASS_FIRST && ignore_library (prog_name)) | |
2735 | return; | |
ed5b9462 | 2736 | |
db126753 DE |
2737 | /* On AIX we have a loop, because there is not much difference |
2738 | between an object and an archive. This trick allows us to | |
2739 | eliminate scan_libraries() function. */ | |
2740 | do | |
ed5b9462 | 2741 | { |
db126753 | 2742 | #endif |
d4058195 | 2743 | /* Some platforms (e.g. OSF4) declare ldopen as taking a |
c22cacf3 MS |
2744 | non-const char * filename parameter, even though it will not |
2745 | modify that string. So we must cast away const-ness here, | |
bb95b4e7 OH |
2746 | using CONST_CAST to prevent complaints from -Wcast-qual. */ |
2747 | if ((ldptr = ldopen (CONST_CAST (char *, prog_name), ldptr)) != NULL) | |
17704846 | 2748 | { |
f5e04914 | 2749 | if (! MY_ISCOFF (HEADER (ldptr).f_magic)) |
40fecdd6 | 2750 | fatal_error (input_location, "%s: not a COFF file", prog_name); |
ed5b9462 | 2751 | |
db126753 | 2752 | if (GCC_CHECK_HDR (ldptr)) |
17704846 | 2753 | { |
db126753 DE |
2754 | sym_count = GCC_SYMBOLS (ldptr); |
2755 | sym_index = GCC_SYMZERO (ldptr); | |
f5e04914 DE |
2756 | |
2757 | #ifdef COLLECT_EXPORT_LIST | |
2758 | /* Is current archive member a shared object? */ | |
2759 | is_shared = HEADER (ldptr).f_flags & F_SHROBJ; | |
2760 | #endif | |
2761 | ||
db126753 DE |
2762 | while (sym_index < sym_count) |
2763 | { | |
2764 | GCC_SYMENT symbol; | |
2765 | ||
2766 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) | |
2767 | break; | |
2768 | sym_index += GCC_SYMINC (symbol); | |
2769 | ||
2770 | if (GCC_OK_SYMBOL (symbol)) | |
2771 | { | |
2772 | char *name; | |
ed5b9462 | 2773 | |
db126753 | 2774 | if ((name = ldgetname (ldptr, &symbol)) == NULL) |
e0a21ab9 | 2775 | continue; /* Should never happen. */ |
ed5b9462 | 2776 | |
cbbbd917 | 2777 | #ifdef XCOFF_DEBUGGING_INFO |
db126753 DE |
2778 | /* All AIX function names have a duplicate entry |
2779 | beginning with a dot. */ | |
2780 | if (*name == '.') | |
2781 | ++name; | |
ed5b9462 RS |
2782 | #endif |
2783 | ||
db126753 DE |
2784 | switch (is_ctor_dtor (name)) |
2785 | { | |
44178879 DE |
2786 | #if TARGET_AIX_VERSION |
2787 | /* Add AIX shared library initalisers/finalisers | |
2788 | to the constructors/destructors list of the | |
2789 | current module. */ | |
2790 | case SYM_AIXI: | |
2791 | if (! (filter & SCAN_CTOR)) | |
2792 | break; | |
6a513e2a TR |
2793 | if (is_shared && !aixlazy_flag |
2794 | #ifdef COLLECT_EXPORT_LIST | |
2795 | && ! static_obj | |
2796 | && ! is_in_list (prog_name, static_libs.first) | |
2797 | #endif | |
2798 | ) | |
44178879 DE |
2799 | add_to_list (&constructors, name); |
2800 | break; | |
2801 | ||
2802 | case SYM_AIXD: | |
2803 | if (! (filter & SCAN_DTOR)) | |
2804 | break; | |
2805 | if (is_shared && !aixlazy_flag) | |
2806 | add_to_list (&destructors, name); | |
2807 | break; | |
2808 | #endif | |
2809 | ||
4326ea40 | 2810 | case SYM_CTOR: |
7e49a4b3 OH |
2811 | if (! (filter & SCAN_CTOR)) |
2812 | break; | |
c71791e0 DE |
2813 | if (! is_shared) |
2814 | add_to_list (&constructors, name); | |
aaef9b06 | 2815 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
db126753 DE |
2816 | if (which_pass == PASS_OBJ) |
2817 | add_to_list (&exports, name); | |
db126753 DE |
2818 | #endif |
2819 | break; | |
2820 | ||
4326ea40 | 2821 | case SYM_DTOR: |
7e49a4b3 OH |
2822 | if (! (filter & SCAN_DTOR)) |
2823 | break; | |
c71791e0 DE |
2824 | if (! is_shared) |
2825 | add_to_list (&destructors, name); | |
aaef9b06 | 2826 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
db126753 DE |
2827 | if (which_pass == PASS_OBJ) |
2828 | add_to_list (&exports, name); | |
db126753 DE |
2829 | #endif |
2830 | break; | |
2831 | ||
2832 | #ifdef COLLECT_EXPORT_LIST | |
4326ea40 | 2833 | case SYM_INIT: |
7e49a4b3 OH |
2834 | if (! (filter & SCAN_INIT)) |
2835 | break; | |
c71791e0 | 2836 | #ifndef LD_INIT_SWITCH |
db126753 DE |
2837 | if (is_shared) |
2838 | add_to_list (&constructors, name); | |
c71791e0 | 2839 | #endif |
db126753 DE |
2840 | break; |
2841 | ||
4326ea40 | 2842 | case SYM_FINI: |
7e49a4b3 OH |
2843 | if (! (filter & SCAN_FINI)) |
2844 | break; | |
c71791e0 | 2845 | #ifndef LD_INIT_SWITCH |
db126753 DE |
2846 | if (is_shared) |
2847 | add_to_list (&destructors, name); | |
c71791e0 | 2848 | #endif |
db126753 DE |
2849 | break; |
2850 | #endif | |
2851 | ||
4326ea40 | 2852 | case SYM_DWEH: |
7e49a4b3 OH |
2853 | if (! (filter & SCAN_DWEH)) |
2854 | break; | |
6690d24c RH |
2855 | if (! is_shared) |
2856 | add_to_list (&frame_tables, name); | |
aaef9b06 | 2857 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
59309a85 GK |
2858 | if (which_pass == PASS_OBJ) |
2859 | add_to_list (&exports, name); | |
59309a85 | 2860 | #endif |
6690d24c RH |
2861 | break; |
2862 | ||
db126753 DE |
2863 | default: /* not a constructor or destructor */ |
2864 | #ifdef COLLECT_EXPORT_LIST | |
aaef9b06 DE |
2865 | /* Explicitly export all global symbols when |
2866 | building a shared object on AIX, but do not | |
2867 | re-export symbols from another shared object | |
2868 | and do not export symbols if the user | |
2869 | provides an explicit export list. */ | |
2870 | if (shared_obj && !is_shared | |
2871 | && which_pass == PASS_OBJ && !export_flag) | |
04218b35 AD |
2872 | { |
2873 | /* Do not auto-export __dso_handle or | |
2874 | __gcc_unwind_dbase. They are required | |
2875 | to be local to each module. */ | |
2876 | if (strcmp(name, "__dso_handle") != 0 | |
2877 | && strcmp(name, "__gcc_unwind_dbase") != 0) | |
2878 | { | |
2879 | add_to_list (&exports, name); | |
2880 | } | |
2881 | } | |
db126753 DE |
2882 | #endif |
2883 | continue; | |
2884 | } | |
ed5b9462 | 2885 | |
db126753 DE |
2886 | if (debug) |
2887 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", | |
2888 | symbol.n_scnum, symbol.n_sclass, | |
2889 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
2890 | name); | |
db126753 | 2891 | } |
db126753 | 2892 | } |
17704846 | 2893 | } |
f5e04914 DE |
2894 | #ifdef COLLECT_EXPORT_LIST |
2895 | else | |
2896 | { | |
2897 | /* If archive contains both 32-bit and 64-bit objects, | |
2898 | we want to skip objects in other mode so mismatch normal. */ | |
2899 | if (debug) | |
2900 | fprintf (stderr, "%s : magic=%o aix64=%d mismatch\n", | |
2901 | prog_name, HEADER (ldptr).f_magic, aix64_flag); | |
2902 | } | |
2903 | #endif | |
ed5b9462 | 2904 | } |
db126753 DE |
2905 | else |
2906 | { | |
40fecdd6 JM |
2907 | fatal_error (input_location, "%s: cannot open as COFF file", |
2908 | prog_name); | |
db126753 DE |
2909 | } |
2910 | #ifdef COLLECT_EXPORT_LIST | |
2911 | /* On AIX loop continues while there are more members in archive. */ | |
ed5b9462 | 2912 | } |
db126753 DE |
2913 | while (ldclose (ldptr) == FAILURE); |
2914 | #else | |
2915 | /* Otherwise we simply close ldptr. */ | |
c3284718 | 2916 | (void) ldclose (ldptr); |
db126753 | 2917 | #endif |
ed5b9462 | 2918 | } |
5b8619f8 | 2919 | #endif /* OBJECT_FORMAT_COFF */ |
1a8463c9 | 2920 | |
db126753 | 2921 | #ifdef COLLECT_EXPORT_LIST |
db126753 DE |
2922 | /* Given a library name without "lib" prefix, this function |
2923 | returns a full library name including a path. */ | |
2924 | static char * | |
159b3be1 | 2925 | resolve_lib_name (const char *name) |
db126753 DE |
2926 | { |
2927 | char *lib_buf; | |
2928 | int i, j, l = 0; | |
7142ae77 DE |
2929 | /* Library extensions for AIX dynamic linking. */ |
2930 | const char * const libexts[2] = {"a", "so"}; | |
d9518857 | 2931 | |
db126753 DE |
2932 | for (i = 0; libpaths[i]; i++) |
2933 | if (libpaths[i]->max_len > l) | |
2934 | l = libpaths[i]->max_len; | |
2935 | ||
c3284718 | 2936 | lib_buf = XNEWVEC (char, l + strlen (name) + 10); |
db126753 DE |
2937 | |
2938 | for (i = 0; libpaths[i]; i++) | |
2939 | { | |
2940 | struct prefix_list *list = libpaths[i]->plist; | |
2941 | for (; list; list = list->next) | |
2942 | { | |
be78ffb2 | 2943 | /* The following lines are needed because path_prefix list |
ba78087b | 2944 | may contain directories both with trailing DIR_SEPARATOR and |
be78ffb2 JM |
2945 | without it. */ |
2946 | const char *p = ""; | |
c3284718 | 2947 | if (!IS_DIR_SEPARATOR (list->prefix[strlen (list->prefix)-1])) |
be78ffb2 | 2948 | p = "/"; |
7142ae77 | 2949 | for (j = 0; j < 2; j++) |
1a8463c9 | 2950 | { |
159b3be1 | 2951 | sprintf (lib_buf, "%s%slib%s.%s", |
7142ae77 DE |
2952 | list->prefix, p, name, |
2953 | libexts[(j + aixrtl_flag) % 2]); | |
2954 | if (debug) fprintf (stderr, "searching for: %s\n", lib_buf); | |
db126753 | 2955 | if (file_exists (lib_buf)) |
1a8463c9 | 2956 | { |
7142ae77 | 2957 | if (debug) fprintf (stderr, "found: %s\n", lib_buf); |
db126753 | 2958 | return (lib_buf); |
1a8463c9 | 2959 | } |
1a8463c9 | 2960 | } |
1a8463c9 RK |
2961 | } |
2962 | } | |
db126753 DE |
2963 | if (debug) |
2964 | fprintf (stderr, "not found\n"); | |
2965 | else | |
40fecdd6 | 2966 | fatal_error (input_location, "library lib%s not found", name); |
db126753 DE |
2967 | return (NULL); |
2968 | } | |
5b8619f8 | 2969 | #endif /* COLLECT_EXPORT_LIST */ |
11afe8e8 MS |
2970 | |
2971 | #ifdef COLLECT_RUN_DSYMUTIL | |
2972 | static int flag_dsym = false; | |
2973 | static int flag_idsym = false; | |
2974 | ||
2975 | static void | |
2976 | process_args (int *argcp, char **argv) { | |
2977 | int i, j; | |
2978 | int argc = *argcp; | |
2979 | for (i=0; i<argc; ++i) | |
2980 | { | |
2981 | if (strcmp (argv[i], "-dsym") == 0) | |
2982 | { | |
2983 | flag_dsym = true; | |
2984 | /* Remove the flag, as we handle all processing for it. */ | |
2985 | j = i; | |
2986 | do | |
2987 | argv[j] = argv[j+1]; | |
2988 | while (++j < argc); | |
2989 | --i; | |
2990 | argc = --(*argcp); | |
2991 | } | |
2992 | else if (strcmp (argv[i], "-idsym") == 0) | |
2993 | { | |
2994 | flag_idsym = true; | |
2995 | /* Remove the flag, as we handle all processing for it. */ | |
2996 | j = i; | |
2997 | do | |
2998 | argv[j] = argv[j+1]; | |
2999 | while (++j < argc); | |
3000 | --i; | |
3001 | argc = --(*argcp); | |
3002 | } | |
3003 | } | |
3004 | } | |
3005 | ||
3006 | static void | |
3007 | do_dsymutil (const char *output_file) { | |
3008 | const char *dsymutil = DSYMUTIL + 1; | |
3009 | struct pex_obj *pex; | |
3010 | char **real_argv = XCNEWVEC (char *, 3); | |
3011 | const char ** argv = CONST_CAST2 (const char **, char **, | |
3012 | real_argv); | |
3013 | ||
3014 | argv[0] = dsymutil; | |
3015 | argv[1] = output_file; | |
3016 | argv[2] = (char *) 0; | |
3017 | ||
5f0ad6a5 BS |
3018 | pex = collect_execute (dsymutil, real_argv, NULL, NULL, |
3019 | PEX_LAST | PEX_SEARCH, false); | |
11afe8e8 MS |
3020 | do_wait (dsymutil, pex); |
3021 | } | |
3022 | ||
3023 | static void | |
3024 | post_ld_pass (bool temp_file) { | |
3025 | if (!(temp_file && flag_idsym) && !flag_dsym) | |
3026 | return; | |
3027 | ||
3028 | do_dsymutil (output_file); | |
3029 | } | |
3030 | #else | |
3031 | static void | |
3032 | process_args (int *argcp ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) { } | |
3033 | static void post_ld_pass (bool temp_file ATTRIBUTE_UNUSED) { } | |
3034 | #endif |