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af4ae74b | 1 | /* Collect static initialization info into data structures that can be |
2 | traversed by C++ initialization and finalization routines. | |
ca628a86 | 3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
5641963c | 4 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012 |
cfaf579d | 5 | Free Software Foundation, Inc. |
832f2315 | 6 | Contributed by Chris Smith (csmith@convex.com). |
809e4ea4 | 7 | Heavily modified by Michael Meissner (meissner@cygnus.com), |
832f2315 | 8 | Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com). |
9 | ||
f12b58b3 | 10 | This file is part of GCC. |
832f2315 | 11 | |
f12b58b3 | 12 | GCC is free software; you can redistribute it and/or modify it under |
13 | the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 14 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 15 | version. |
832f2315 | 16 | |
f12b58b3 | 17 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
18 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | for more details. | |
832f2315 | 21 | |
22 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 23 | along with GCC; see the file COPYING3. If not see |
24 | <http://www.gnu.org/licenses/>. */ | |
832f2315 | 25 | |
26 | ||
a92771b8 | 27 | /* Build tables of static constructors and destructors and run ld. */ |
832f2315 | 28 | |
de61b97c | 29 | #include "config.h" |
405711de | 30 | #include "system.h" |
805e22b2 | 31 | #include "coretypes.h" |
32 | #include "tm.h" | |
82715bcd | 33 | #include "filenames.h" |
832f2315 | 34 | |
a2beb429 | 35 | /* TARGET_64BIT may be defined to use driver specific functionality. */ |
36 | #undef TARGET_64BIT | |
37 | #define TARGET_64BIT TARGET_64BIT_DEFAULT | |
38 | ||
397f1574 | 39 | #ifndef LIBRARY_PATH_ENV |
40 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
41 | #endif | |
42 | ||
de61b97c | 43 | #define COLLECT |
44 | ||
1ae13971 | 45 | #include "collect2.h" |
cabc7147 | 46 | #include "collect2-aix.h" |
11091b4d | 47 | #include "diagnostic.h" |
de61b97c | 48 | #include "demangle.h" |
49 | #include "obstack.h" | |
be2828ce | 50 | #include "intl.h" |
56fc5f02 | 51 | #include "version.h" |
22f0924c | 52 | \f |
53 | /* On certain systems, we have code that works by scanning the object file | |
54 | directly. But this code uses system-specific header files and library | |
e533c428 | 55 | functions, so turn it off in a cross-compiler. Likewise, the names of |
d1058090 | 56 | the utilities are not correct for a cross-compiler; we have to hope that |
e533c428 | 57 | cross-versions are in the proper directories. */ |
22f0924c | 58 | |
29d774d0 | 59 | #ifdef CROSS_DIRECTORY_STRUCTURE |
cabc7147 | 60 | #ifndef CROSS_AIX_SUPPORT |
22f0924c | 61 | #undef OBJECT_FORMAT_COFF |
cabc7147 | 62 | #endif |
e533c428 | 63 | #undef MD_EXEC_PREFIX |
64 | #undef REAL_LD_FILE_NAME | |
65 | #undef REAL_NM_FILE_NAME | |
66 | #undef REAL_STRIP_FILE_NAME | |
22f0924c | 67 | #endif |
68 | ||
d1058090 | 69 | /* If we cannot use a special method, use the ordinary one: |
22f0924c | 70 | run nm to find what symbols are present. |
71 | In a cross-compiler, this means you need a cross nm, | |
d1058090 | 72 | but that is not quite as unpleasant as special headers. */ |
22f0924c | 73 | |
4bfa9136 | 74 | #if !defined (OBJECT_FORMAT_COFF) |
22f0924c | 75 | #define OBJECT_FORMAT_NONE |
76 | #endif | |
77 | ||
78 | #ifdef OBJECT_FORMAT_COFF | |
79 | ||
cabc7147 | 80 | #ifndef CROSS_DIRECTORY_STRUCTURE |
22f0924c | 81 | #include <a.out.h> |
82 | #include <ar.h> | |
83 | ||
84 | #ifdef UMAX | |
85 | #include <sgs.h> | |
86 | #endif | |
87 | ||
2dbf77ee | 88 | /* Many versions of ldfcn.h define these. */ |
89 | #ifdef FREAD | |
22f0924c | 90 | #undef FREAD |
91 | #undef FWRITE | |
92 | #endif | |
93 | ||
94 | #include <ldfcn.h> | |
cabc7147 | 95 | #endif |
22f0924c | 96 | |
f1ec03c4 | 97 | /* Some systems have an ISCOFF macro, but others do not. In some cases |
98 | the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines | |
89a1f620 | 99 | that either do not have an ISCOFF macro in /usr/include or for those |
f1ec03c4 | 100 | where it is wrong. */ |
101 | ||
afc39df4 | 102 | #ifndef MY_ISCOFF |
103 | #define MY_ISCOFF(X) ISCOFF (X) | |
104 | #endif | |
105 | ||
22f0924c | 106 | #endif /* OBJECT_FORMAT_COFF */ |
107 | ||
22f0924c | 108 | #ifdef OBJECT_FORMAT_NONE |
109 | ||
832f2315 | 110 | /* Default flags to pass to nm. */ |
111 | #ifndef NM_FLAGS | |
9bc65db1 | 112 | #define NM_FLAGS "-n" |
832f2315 | 113 | #endif |
114 | ||
22f0924c | 115 | #endif /* OBJECT_FORMAT_NONE */ |
b0b9762f | 116 | |
117 | /* Some systems use __main in a way incompatible with its use in gcc, in these | |
118 | cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to | |
7cdd3716 | 119 | give the same symbol without quotes for an alternative entry point. */ |
b0b9762f | 120 | #ifndef NAME__MAIN |
121 | #define NAME__MAIN "__main" | |
b0b9762f | 122 | #endif |
123 | ||
69988048 | 124 | /* This must match tree.h. */ |
125 | #define DEFAULT_INIT_PRIORITY 65535 | |
126 | ||
2f9e77d1 | 127 | #ifndef COLLECT_SHARED_INIT_FUNC |
128 | #define COLLECT_SHARED_INIT_FUNC(STREAM, FUNC) \ | |
129 | fprintf ((STREAM), "void _GLOBAL__DI() {\n\t%s();\n}\n", (FUNC)) | |
130 | #endif | |
131 | #ifndef COLLECT_SHARED_FINI_FUNC | |
132 | #define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \ | |
133 | fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC)) | |
134 | #endif | |
135 | ||
5219c73b | 136 | #ifdef LDD_SUFFIX |
b7c87ff2 | 137 | #define SCAN_LIBRARIES |
138 | #endif | |
d2f0b724 | 139 | |
1ba3a590 | 140 | #ifndef SHLIB_SUFFIX |
141 | #define SHLIB_SUFFIX ".so" | |
142 | #endif | |
143 | ||
d2f0b724 | 144 | #ifdef USE_COLLECT2 |
145 | int do_collecting = 1; | |
146 | #else | |
147 | int do_collecting = 0; | |
148 | #endif | |
402eb8ac | 149 | |
912df756 | 150 | /* Cook up an always defined indication of whether we proceed the |
151 | "EXPORT_LIST" way. */ | |
152 | ||
153 | #ifdef COLLECT_EXPORT_LIST | |
154 | #define DO_COLLECT_EXPORT_LIST 1 | |
155 | #else | |
156 | #define DO_COLLECT_EXPORT_LIST 0 | |
157 | #endif | |
158 | ||
402eb8ac | 159 | /* Nonzero if we should suppress the automatic demangling of identifiers |
160 | in linker error messages. Set from COLLECT_NO_DEMANGLE. */ | |
161 | int no_demangle; | |
832f2315 | 162 | \f |
a92771b8 | 163 | /* Linked lists of constructor and destructor names. */ |
832f2315 | 164 | |
89a1f620 | 165 | struct id |
832f2315 | 166 | { |
167 | struct id *next; | |
168 | int sequence; | |
169 | char name[1]; | |
170 | }; | |
171 | ||
172 | struct head | |
173 | { | |
174 | struct id *first; | |
175 | struct id *last; | |
176 | int number; | |
177 | }; | |
178 | ||
2bd5037b | 179 | bool vflag; /* true if -v or --version */ |
832f2315 | 180 | static int rflag; /* true if -r */ |
8989da5d | 181 | static int strip_flag; /* true if -s */ |
d1058090 | 182 | #ifdef COLLECT_EXPORT_LIST |
183 | static int export_flag; /* true if -bE */ | |
9ae139a2 | 184 | static int aix64_flag; /* true if -b64 */ |
07090bac | 185 | static int aixrtl_flag; /* true if -brtl */ |
d1058090 | 186 | #endif |
832f2315 | 187 | |
7bfefa9d | 188 | enum lto_mode_d { |
189 | LTO_MODE_NONE, /* Not doing LTO. */ | |
190 | LTO_MODE_LTO, /* Normal LTO. */ | |
191 | LTO_MODE_WHOPR /* WHOPR. */ | |
192 | }; | |
193 | ||
194 | /* Current LTO mode. */ | |
195 | static enum lto_mode_d lto_mode = LTO_MODE_NONE; | |
196 | ||
2bd5037b | 197 | bool debug; /* true if -debug */ |
198 | bool helpflag; /* true if --help */ | |
832f2315 | 199 | |
a0c938f0 | 200 | static int shared_obj; /* true if -shared */ |
b7c87ff2 | 201 | |
e504db4a | 202 | static const char *c_file; /* <xxx>.c for constructor/destructor list. */ |
203 | static const char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
d1058090 | 204 | #ifdef COLLECT_EXPORT_LIST |
a0c938f0 | 205 | static const char *export_file; /* <xxx>.x for AIX export list. */ |
d1058090 | 206 | #endif |
7bfefa9d | 207 | static char **lto_o_files; /* Output files for LTO. */ |
d6b5203d | 208 | const char *ldout; /* File for ld stdout. */ |
209 | const char *lderrout; /* File for ld stderr. */ | |
e504db4a | 210 | static const char *output_file; /* Output file for ld. */ |
211 | static const char *nm_file_name; /* pathname of nm */ | |
579f88d2 | 212 | #ifdef LDD_SUFFIX |
e504db4a | 213 | static const char *ldd_file_name; /* pathname of ldd (or equivalent) */ |
579f88d2 | 214 | #endif |
e504db4a | 215 | static const char *strip_file_name; /* pathname of strip */ |
a0c938f0 | 216 | const char *c_file_name; /* pathname of gcc */ |
a9b00323 | 217 | static char *initname, *fininame; /* names of init and fini funcs */ |
832f2315 | 218 | |
219 | static struct head constructors; /* list of constructors found */ | |
220 | static struct head destructors; /* list of destructors found */ | |
d1058090 | 221 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 222 | static struct head exports; /* list of exported symbols */ |
d1058090 | 223 | #endif |
d757b8c9 | 224 | static struct head frame_tables; /* list of frame unwind info tables */ |
832f2315 | 225 | |
c159e0b7 | 226 | static bool at_file_supplied; /* Whether to use @file arguments */ |
227 | static char *response_file; /* Name of any current response file */ | |
228 | ||
d2f0b724 | 229 | struct obstack temporary_obstack; |
d2f0b724 | 230 | char * temporary_firstobj; |
231 | ||
ef6fd54f | 232 | /* A string that must be prepended to a target OS path in order to find |
233 | it on the host system. */ | |
234 | #ifdef TARGET_SYSTEM_ROOT | |
235 | static const char *target_system_root = TARGET_SYSTEM_ROOT; | |
236 | #else | |
237 | static const char *target_system_root = ""; | |
238 | #endif | |
239 | ||
2b98e22b | 240 | /* Whether we may unlink the output file, which should be set as soon as we |
241 | know we have successfully produced it. This is typically useful to prevent | |
242 | blindly attempting to unlink a read-only output that the target linker | |
243 | would leave untouched. */ | |
244 | bool may_unlink_output_file = false; | |
245 | ||
3d082955 | 246 | /* Structure to hold all the directories in which to search for files to |
247 | execute. */ | |
248 | ||
249 | struct prefix_list | |
250 | { | |
e504db4a | 251 | const char *prefix; /* String to prepend to the path. */ |
a92771b8 | 252 | struct prefix_list *next; /* Next in linked list. */ |
3d082955 | 253 | }; |
254 | ||
255 | struct path_prefix | |
256 | { | |
257 | struct prefix_list *plist; /* List of prefixes to try */ | |
258 | int max_len; /* Max length of a prefix in PLIST */ | |
e504db4a | 259 | const char *name; /* Name of this list (used in config stuff) */ |
3d082955 | 260 | }; |
261 | ||
d1058090 | 262 | #ifdef COLLECT_EXPORT_LIST |
2c0e001b | 263 | /* Lists to keep libraries to be scanned for global constructors/destructors. */ |
d1058090 | 264 | static struct head libs; /* list of libraries */ |
265 | static struct path_prefix cmdline_lib_dirs; /* directories specified with -L */ | |
266 | static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */ | |
267 | static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs, | |
268 | &libpath_lib_dirs, NULL}; | |
d1058090 | 269 | #endif |
270 | ||
7bfefa9d | 271 | /* List of names of object files containing LTO information. |
272 | These are a subset of the object file names appearing on the | |
273 | command line, and must be identical, in the sense of pointer | |
274 | equality, with the names passed to maybe_run_lto_and_relink(). */ | |
275 | ||
276 | struct lto_object | |
277 | { | |
278 | const char *name; /* Name of object file. */ | |
279 | struct lto_object *next; /* Next in linked list. */ | |
280 | }; | |
281 | ||
282 | struct lto_object_list | |
283 | { | |
284 | struct lto_object *first; /* First list element. */ | |
285 | struct lto_object *last; /* Last list element. */ | |
286 | }; | |
287 | ||
288 | static struct lto_object_list lto_objects; | |
289 | ||
efc8f8d6 | 290 | /* Special kinds of symbols that a name may denote. */ |
291 | ||
292 | typedef enum { | |
293 | SYM_REGULAR = 0, /* nothing special */ | |
294 | ||
295 | SYM_CTOR = 1, /* constructor */ | |
296 | SYM_DTOR = 2, /* destructor */ | |
297 | SYM_INIT = 3, /* shared object routine that calls all the ctors */ | |
298 | SYM_FINI = 4, /* shared object routine that calls all the dtors */ | |
299 | SYM_DWEH = 5 /* DWARF exception handling table */ | |
300 | } symkind; | |
301 | ||
302 | static symkind is_ctor_dtor (const char *); | |
303 | ||
89a1f620 | 304 | static void handler (int); |
89a1f620 | 305 | static char *find_a_file (struct path_prefix *, const char *); |
306 | static void add_prefix (struct path_prefix *, const char *); | |
307 | static void prefix_from_env (const char *, struct path_prefix *); | |
308 | static void prefix_from_string (const char *, struct path_prefix *); | |
6e24b140 | 309 | static void do_wait (const char *, struct pex_obj *); |
89a1f620 | 310 | static void fork_execute (const char *, char **); |
311 | static void maybe_unlink (const char *); | |
7bfefa9d | 312 | static void maybe_unlink_list (char **); |
89a1f620 | 313 | static void add_to_list (struct head *, const char *); |
314 | static int extract_init_priority (const char *); | |
315 | static void sort_ids (struct head *); | |
316 | static void write_list (FILE *, const char *, struct id *); | |
0e93a6ac | 317 | #ifdef COLLECT_EXPORT_LIST |
89a1f620 | 318 | static void dump_list (FILE *, const char *, struct id *); |
0e93a6ac | 319 | #endif |
320 | #if 0 | |
89a1f620 | 321 | static void dump_prefix_list (FILE *, const char *, struct prefix_list *); |
e504db4a | 322 | #endif |
89a1f620 | 323 | static void write_list_with_asm (FILE *, const char *, struct id *); |
324 | static void write_c_file (FILE *, const char *); | |
325 | static void write_c_file_stat (FILE *, const char *); | |
e504db4a | 326 | #ifndef LD_INIT_SWITCH |
89a1f620 | 327 | static void write_c_file_glob (FILE *, const char *); |
0e93a6ac | 328 | #endif |
99c14947 | 329 | #ifdef SCAN_LIBRARIES |
89a1f620 | 330 | static void scan_libraries (const char *); |
99c14947 | 331 | #endif |
d1058090 | 332 | #ifdef COLLECT_EXPORT_LIST |
0c87a39e | 333 | #if 0 |
89a1f620 | 334 | static int is_in_list (const char *, struct id *); |
0c87a39e | 335 | #endif |
89a1f620 | 336 | static void write_aix_file (FILE *, struct id *); |
337 | static char *resolve_lib_name (const char *); | |
d1058090 | 338 | #endif |
89a1f620 | 339 | static char *extract_string (const char **); |
3f5e90a3 | 340 | static void post_ld_pass (bool); |
341 | static void process_args (int *argcp, char **argv); | |
912df756 | 342 | |
343 | /* Enumerations describing which pass this is for scanning the | |
344 | program file ... */ | |
345 | ||
346 | typedef enum { | |
347 | PASS_FIRST, /* without constructors */ | |
348 | PASS_OBJ, /* individual objects */ | |
349 | PASS_LIB, /* looking for shared libraries */ | |
7bfefa9d | 350 | PASS_SECOND, /* with constructors linked in */ |
351 | PASS_LTOINFO /* looking for objects with LTO info */ | |
912df756 | 352 | } scanpass; |
353 | ||
354 | /* ... and which kinds of symbols are to be considered. */ | |
355 | ||
356 | enum scanfilter_masks { | |
357 | SCAN_NOTHING = 0, | |
358 | ||
48e1416a | 359 | SCAN_CTOR = 1 << SYM_CTOR, |
912df756 | 360 | SCAN_DTOR = 1 << SYM_DTOR, |
361 | SCAN_INIT = 1 << SYM_INIT, | |
362 | SCAN_FINI = 1 << SYM_FINI, | |
363 | SCAN_DWEH = 1 << SYM_DWEH, | |
364 | SCAN_ALL = ~0 | |
365 | }; | |
366 | ||
367 | /* This type is used for parameters and variables which hold | |
368 | combinations of the flags in enum scanfilter_masks. */ | |
369 | typedef int scanfilter; | |
370 | ||
371 | /* Scan the name list of the loaded program for the symbols g++ uses for | |
372 | static constructors and destructors. | |
373 | ||
374 | The SCANPASS argument tells which collect processing pass this is for and | |
375 | the SCANFILTER argument tells which kinds of symbols to consider in this | |
376 | pass. Symbols of a special kind not in the filter mask are considered as | |
377 | regular ones. | |
378 | ||
379 | The constructor table begins at __CTOR_LIST__ and contains a count of the | |
380 | number of pointers (or -1 if the constructors are built in a separate | |
381 | section by the linker), followed by the pointers to the constructor | |
382 | functions, terminated with a null pointer. The destructor table has the | |
383 | same format, and begins at __DTOR_LIST__. */ | |
384 | ||
385 | static void scan_prog_file (const char *, scanpass, scanfilter); | |
386 | ||
832f2315 | 387 | \f |
832f2315 | 388 | /* Delete tempfiles and exit function. */ |
389 | ||
d2f0b724 | 390 | void |
89a1f620 | 391 | collect_exit (int status) |
832f2315 | 392 | { |
22f0924c | 393 | if (c_file != 0 && c_file[0]) |
832f2315 | 394 | maybe_unlink (c_file); |
395 | ||
22f0924c | 396 | if (o_file != 0 && o_file[0]) |
832f2315 | 397 | maybe_unlink (o_file); |
398 | ||
d1058090 | 399 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 400 | if (export_file != 0 && export_file[0]) |
401 | maybe_unlink (export_file); | |
d1058090 | 402 | #endif |
403 | ||
7bfefa9d | 404 | if (lto_o_files) |
405 | maybe_unlink_list (lto_o_files); | |
406 | ||
d2f0b724 | 407 | if (ldout != 0 && ldout[0]) |
408 | { | |
b5369b7d | 409 | dump_ld_file (ldout, stdout); |
d2f0b724 | 410 | maybe_unlink (ldout); |
411 | } | |
412 | ||
d6b5203d | 413 | if (lderrout != 0 && lderrout[0]) |
414 | { | |
b5369b7d | 415 | dump_ld_file (lderrout, stderr); |
d6b5203d | 416 | maybe_unlink (lderrout); |
417 | } | |
418 | ||
131353cd | 419 | if (status != 0 && output_file != 0 && output_file[0]) |
420 | maybe_unlink (output_file); | |
421 | ||
c159e0b7 | 422 | if (response_file) |
423 | maybe_unlink (response_file); | |
424 | ||
832f2315 | 425 | exit (status); |
426 | } | |
427 | ||
428 | \f | |
be2828ce | 429 | /* Notify user of a non-error. */ |
430 | void | |
380c6697 | 431 | notice (const char *cmsgid, ...) |
be2828ce | 432 | { |
ee582a61 | 433 | va_list ap; |
89a1f620 | 434 | |
380c6697 | 435 | va_start (ap, cmsgid); |
436 | vfprintf (stderr, _(cmsgid), ap); | |
ee582a61 | 437 | va_end (ap); |
be2828ce | 438 | } |
439 | ||
70da6ffe | 440 | /* Notify user of a non-error, without translating the format string. */ |
441 | void | |
442 | notice_translated (const char *cmsgid, ...) | |
443 | { | |
444 | va_list ap; | |
445 | ||
446 | va_start (ap, cmsgid); | |
447 | vfprintf (stderr, cmsgid, ap); | |
448 | va_end (ap); | |
449 | } | |
832f2315 | 450 | \f |
451 | static void | |
89a1f620 | 452 | handler (int signo) |
832f2315 | 453 | { |
7fad41d4 | 454 | if (c_file != 0 && c_file[0]) |
832f2315 | 455 | maybe_unlink (c_file); |
456 | ||
7fad41d4 | 457 | if (o_file != 0 && o_file[0]) |
832f2315 | 458 | maybe_unlink (o_file); |
459 | ||
d2f0b724 | 460 | if (ldout != 0 && ldout[0]) |
461 | maybe_unlink (ldout); | |
462 | ||
d6b5203d | 463 | if (lderrout != 0 && lderrout[0]) |
464 | maybe_unlink (lderrout); | |
465 | ||
d1058090 | 466 | #ifdef COLLECT_EXPORT_LIST |
70fd963a | 467 | if (export_file != 0 && export_file[0]) |
468 | maybe_unlink (export_file); | |
d1058090 | 469 | #endif |
470 | ||
7bfefa9d | 471 | if (lto_o_files) |
472 | maybe_unlink_list (lto_o_files); | |
473 | ||
c159e0b7 | 474 | if (response_file) |
475 | maybe_unlink (response_file); | |
476 | ||
832f2315 | 477 | signal (signo, SIG_DFL); |
6e24b140 | 478 | raise (signo); |
832f2315 | 479 | } |
480 | ||
481 | \f | |
d2f0b724 | 482 | int |
89a1f620 | 483 | file_exists (const char *name) |
d2f0b724 | 484 | { |
485 | return access (name, R_OK) == 0; | |
832f2315 | 486 | } |
487 | ||
7802b788 | 488 | /* Parse a reasonable subset of shell quoting syntax. */ |
489 | ||
490 | static char * | |
89a1f620 | 491 | extract_string (const char **pp) |
7802b788 | 492 | { |
e504db4a | 493 | const char *p = *pp; |
7802b788 | 494 | int backquote = 0; |
495 | int inside = 0; | |
496 | ||
497 | for (;;) | |
498 | { | |
499 | char c = *p; | |
500 | if (c == '\0') | |
501 | break; | |
502 | ++p; | |
503 | if (backquote) | |
504 | obstack_1grow (&temporary_obstack, c); | |
505 | else if (! inside && c == ' ') | |
506 | break; | |
507 | else if (! inside && c == '\\') | |
508 | backquote = 1; | |
509 | else if (c == '\'') | |
510 | inside = !inside; | |
511 | else | |
512 | obstack_1grow (&temporary_obstack, c); | |
513 | } | |
514 | ||
251341d1 | 515 | obstack_1grow (&temporary_obstack, '\0'); |
7802b788 | 516 | *pp = p; |
4fac984f | 517 | return XOBFINISH (&temporary_obstack, char *); |
7802b788 | 518 | } |
22f0924c | 519 | \f |
d2f0b724 | 520 | void |
b5369b7d | 521 | dump_ld_file (const char *name, FILE *to) |
d2f0b724 | 522 | { |
523 | FILE *stream = fopen (name, "r"); | |
d2f0b724 | 524 | |
525 | if (stream == 0) | |
526 | return; | |
527 | while (1) | |
528 | { | |
529 | int c; | |
530 | while (c = getc (stream), | |
66a33570 | 531 | c != EOF && (ISIDNUM (c) || c == '$' || c == '.')) |
d2f0b724 | 532 | obstack_1grow (&temporary_obstack, c); |
533 | if (obstack_object_size (&temporary_obstack) > 0) | |
534 | { | |
e504db4a | 535 | const char *word, *p; |
536 | char *result; | |
d2f0b724 | 537 | obstack_1grow (&temporary_obstack, '\0'); |
4fac984f | 538 | word = XOBFINISH (&temporary_obstack, const char *); |
d2f0b724 | 539 | |
540 | if (*word == '.') | |
d6b5203d | 541 | ++word, putc ('.', to); |
d2f0b724 | 542 | p = word; |
65e49ff1 | 543 | if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) |
544 | p += strlen (USER_LABEL_PREFIX); | |
d2f0b724 | 545 | |
9c948bc2 | 546 | #ifdef HAVE_LD_DEMANGLE |
547 | result = 0; | |
548 | #else | |
d2f0b724 | 549 | if (no_demangle) |
550 | result = 0; | |
551 | else | |
c6d86b63 | 552 | result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE); |
9c948bc2 | 553 | #endif |
d2f0b724 | 554 | |
555 | if (result) | |
556 | { | |
557 | int diff; | |
d6b5203d | 558 | fputs (result, to); |
d2f0b724 | 559 | |
560 | diff = strlen (word) - strlen (result); | |
402eb8ac | 561 | while (diff > 0 && c == ' ') |
d6b5203d | 562 | --diff, putc (' ', to); |
8698b7cf | 563 | if (diff < 0 && c == ' ') |
564 | { | |
565 | while (diff < 0 && c == ' ') | |
566 | ++diff, c = getc (stream); | |
567 | if (!ISSPACE (c)) | |
568 | { | |
569 | /* Make sure we output at least one space, or | |
570 | the demangled symbol name will run into | |
571 | whatever text follows. */ | |
572 | putc (' ', to); | |
573 | } | |
574 | } | |
d2f0b724 | 575 | |
576 | free (result); | |
577 | } | |
578 | else | |
d6b5203d | 579 | fputs (word, to); |
d2f0b724 | 580 | |
d6b5203d | 581 | fflush (to); |
d2f0b724 | 582 | obstack_free (&temporary_obstack, temporary_firstobj); |
583 | } | |
584 | if (c == EOF) | |
585 | break; | |
d6b5203d | 586 | putc (c, to); |
d2f0b724 | 587 | } |
af4ae74b | 588 | fclose (stream); |
d2f0b724 | 589 | } |
590 | \f | |
efc8f8d6 | 591 | /* Return the kind of symbol denoted by name S. */ |
22f0924c | 592 | |
efc8f8d6 | 593 | static symkind |
89a1f620 | 594 | is_ctor_dtor (const char *s) |
22f0924c | 595 | { |
bc620c5c | 596 | struct names { const char *const name; const int len; symkind ret; |
e99c3a1d | 597 | const int two_underscores; }; |
22f0924c | 598 | |
33b57a7b | 599 | const struct names *p; |
19cb6b50 | 600 | int ch; |
601 | const char *orig_s = s; | |
22f0924c | 602 | |
33b57a7b | 603 | static const struct names special[] = { |
212c6484 | 604 | #ifndef NO_DOLLAR_IN_LABEL |
efc8f8d6 | 605 | { "GLOBAL__I$", sizeof ("GLOBAL__I$")-1, SYM_CTOR, 0 }, |
606 | { "GLOBAL__D$", sizeof ("GLOBAL__D$")-1, SYM_DTOR, 0 }, | |
212c6484 | 607 | #else |
608 | #ifndef NO_DOT_IN_LABEL | |
efc8f8d6 | 609 | { "GLOBAL__I.", sizeof ("GLOBAL__I.")-1, SYM_CTOR, 0 }, |
610 | { "GLOBAL__D.", sizeof ("GLOBAL__D.")-1, SYM_DTOR, 0 }, | |
212c6484 | 611 | #endif /* NO_DOT_IN_LABEL */ |
612 | #endif /* NO_DOLLAR_IN_LABEL */ | |
efc8f8d6 | 613 | { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, SYM_CTOR, 0 }, |
614 | { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, SYM_DTOR, 0 }, | |
615 | { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, SYM_DWEH, 0 }, | |
616 | { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, SYM_INIT, 0 }, | |
617 | { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, SYM_FINI, 0 }, | |
618 | { NULL, 0, SYM_REGULAR, 0 } | |
22f0924c | 619 | }; |
620 | ||
621 | while ((ch = *s) == '_') | |
622 | ++s; | |
623 | ||
624 | if (s == orig_s) | |
efc8f8d6 | 625 | return SYM_REGULAR; |
22f0924c | 626 | |
627 | for (p = &special[0]; p->len > 0; p++) | |
628 | { | |
629 | if (ch == p->name[0] | |
630 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
631 | && strncmp(s, p->name, p->len) == 0) | |
632 | { | |
633 | return p->ret; | |
634 | } | |
635 | } | |
efc8f8d6 | 636 | return SYM_REGULAR; |
22f0924c | 637 | } |
e533c428 | 638 | \f |
e533c428 | 639 | /* We maintain two prefix lists: one from COMPILER_PATH environment variable |
640 | and one from the PATH variable. */ | |
641 | ||
642 | static struct path_prefix cpath, path; | |
643 | ||
29d774d0 | 644 | #ifdef CROSS_DIRECTORY_STRUCTURE |
e533c428 | 645 | /* This is the name of the target machine. We use it to form the name |
646 | of the files to execute. */ | |
647 | ||
e504db4a | 648 | static const char *const target_machine = TARGET_MACHINE; |
e533c428 | 649 | #endif |
efba5f69 | 650 | |
e533c428 | 651 | /* Search for NAME using prefix list PPREFIX. We only look for executable |
89a1f620 | 652 | files. |
e533c428 | 653 | |
a92771b8 | 654 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
e533c428 | 655 | |
656 | static char * | |
89a1f620 | 657 | find_a_file (struct path_prefix *pprefix, const char *name) |
e533c428 | 658 | { |
659 | char *temp; | |
660 | struct prefix_list *pl; | |
661 | int len = pprefix->max_len + strlen (name) + 1; | |
662 | ||
e8d8647e | 663 | if (debug) |
664 | fprintf (stderr, "Looking for '%s'\n", name); | |
89a1f620 | 665 | |
10f57222 | 666 | #ifdef HOST_EXECUTABLE_SUFFIX |
667 | len += strlen (HOST_EXECUTABLE_SUFFIX); | |
e533c428 | 668 | #endif |
669 | ||
4c36ffe6 | 670 | temp = XNEWVEC (char, len); |
e533c428 | 671 | |
672 | /* Determine the filename to execute (special case for absolute paths). */ | |
673 | ||
f3340cb8 | 674 | if (IS_ABSOLUTE_PATH (name)) |
e533c428 | 675 | { |
d6d40f04 | 676 | if (access (name, X_OK) == 0) |
e533c428 | 677 | { |
678 | strcpy (temp, name); | |
e8d8647e | 679 | |
680 | if (debug) | |
681 | fprintf (stderr, " - found: absolute path\n"); | |
89a1f620 | 682 | |
e533c428 | 683 | return temp; |
684 | } | |
e8d8647e | 685 | |
10f57222 | 686 | #ifdef HOST_EXECUTABLE_SUFFIX |
79b23a1e | 687 | /* Some systems have a suffix for executable files. |
688 | So try appending that. */ | |
689 | strcpy (temp, name); | |
10f57222 | 690 | strcat (temp, HOST_EXECUTABLE_SUFFIX); |
89a1f620 | 691 | |
79b23a1e | 692 | if (access (temp, X_OK) == 0) |
693 | return temp; | |
694 | #endif | |
695 | ||
e8d8647e | 696 | if (debug) |
697 | fprintf (stderr, " - failed to locate using absolute path\n"); | |
e533c428 | 698 | } |
699 | else | |
700 | for (pl = pprefix->plist; pl; pl = pl->next) | |
701 | { | |
4d5a901b | 702 | struct stat st; |
703 | ||
e533c428 | 704 | strcpy (temp, pl->prefix); |
705 | strcat (temp, name); | |
89a1f620 | 706 | |
4d5a901b | 707 | if (stat (temp, &st) >= 0 |
708 | && ! S_ISDIR (st.st_mode) | |
709 | && access (temp, X_OK) == 0) | |
0c787992 | 710 | return temp; |
e533c428 | 711 | |
10f57222 | 712 | #ifdef HOST_EXECUTABLE_SUFFIX |
e533c428 | 713 | /* Some systems have a suffix for executable files. |
714 | So try appending that. */ | |
10f57222 | 715 | strcat (temp, HOST_EXECUTABLE_SUFFIX); |
89a1f620 | 716 | |
4d5a901b | 717 | if (stat (temp, &st) >= 0 |
718 | && ! S_ISDIR (st.st_mode) | |
719 | && access (temp, X_OK) == 0) | |
0c787992 | 720 | return temp; |
721 | #endif | |
e533c428 | 722 | } |
723 | ||
e8d8647e | 724 | if (debug && pprefix->plist == NULL) |
725 | fprintf (stderr, " - failed: no entries in prefix list\n"); | |
726 | ||
e533c428 | 727 | free (temp); |
728 | return 0; | |
729 | } | |
730 | ||
731 | /* Add an entry for PREFIX to prefix list PPREFIX. */ | |
732 | ||
733 | static void | |
89a1f620 | 734 | add_prefix (struct path_prefix *pprefix, const char *prefix) |
e533c428 | 735 | { |
736 | struct prefix_list *pl, **prev; | |
737 | int len; | |
738 | ||
739 | if (pprefix->plist) | |
740 | { | |
741 | for (pl = pprefix->plist; pl->next; pl = pl->next) | |
742 | ; | |
743 | prev = &pl->next; | |
744 | } | |
745 | else | |
746 | prev = &pprefix->plist; | |
747 | ||
2358393e | 748 | /* Keep track of the longest prefix. */ |
e533c428 | 749 | |
750 | len = strlen (prefix); | |
751 | if (len > pprefix->max_len) | |
752 | pprefix->max_len = len; | |
753 | ||
4c36ffe6 | 754 | pl = XNEW (struct prefix_list); |
c96e0786 | 755 | pl->prefix = xstrdup (prefix); |
e533c428 | 756 | |
757 | if (*prev) | |
758 | pl->next = *prev; | |
759 | else | |
760 | pl->next = (struct prefix_list *) 0; | |
761 | *prev = pl; | |
762 | } | |
763 | \f | |
764 | /* Take the value of the environment variable ENV, break it into a path, and | |
765 | add of the entries to PPREFIX. */ | |
766 | ||
767 | static void | |
89a1f620 | 768 | prefix_from_env (const char *env, struct path_prefix *pprefix) |
e533c428 | 769 | { |
e504db4a | 770 | const char *p; |
967958e4 | 771 | p = getenv (env); |
e533c428 | 772 | |
773 | if (p) | |
a9b00323 | 774 | prefix_from_string (p, pprefix); |
775 | } | |
e533c428 | 776 | |
a9b00323 | 777 | static void |
89a1f620 | 778 | prefix_from_string (const char *p, struct path_prefix *pprefix) |
a9b00323 | 779 | { |
e504db4a | 780 | const char *startp, *endp; |
4c36ffe6 | 781 | char *nstore = XNEWVEC (char, strlen (p) + 3); |
a9b00323 | 782 | |
e8d8647e | 783 | if (debug) |
784 | fprintf (stderr, "Convert string '%s' into prefixes, separator = '%c'\n", p, PATH_SEPARATOR); | |
89a1f620 | 785 | |
a9b00323 | 786 | startp = endp = p; |
787 | while (1) | |
788 | { | |
789 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
e533c428 | 790 | { |
a9b00323 | 791 | strncpy (nstore, startp, endp-startp); |
792 | if (endp == startp) | |
e533c428 | 793 | { |
a9b00323 | 794 | strcpy (nstore, "./"); |
795 | } | |
01a88289 | 796 | else if (! IS_DIR_SEPARATOR (endp[-1])) |
a9b00323 | 797 | { |
01a88289 | 798 | nstore[endp-startp] = DIR_SEPARATOR; |
a9b00323 | 799 | nstore[endp-startp+1] = 0; |
e533c428 | 800 | } |
801 | else | |
a9b00323 | 802 | nstore[endp-startp] = 0; |
803 | ||
e8d8647e | 804 | if (debug) |
805 | fprintf (stderr, " - add prefix: %s\n", nstore); | |
89a1f620 | 806 | |
a9b00323 | 807 | add_prefix (pprefix, nstore); |
808 | if (*endp == 0) | |
809 | break; | |
810 | endp = startp = endp + 1; | |
e533c428 | 811 | } |
a9b00323 | 812 | else |
813 | endp++; | |
e533c428 | 814 | } |
5a30047c | 815 | free (nstore); |
e533c428 | 816 | } |
7bfefa9d | 817 | |
43ccfa36 | 818 | #ifdef OBJECT_FORMAT_NONE |
819 | ||
7bfefa9d | 820 | /* Add an entry for the object file NAME to object file list LIST. |
821 | New entries are added at the end of the list. The original pointer | |
822 | value of NAME is preserved, i.e., no string copy is performed. */ | |
823 | ||
824 | static void | |
825 | add_lto_object (struct lto_object_list *list, const char *name) | |
826 | { | |
827 | struct lto_object *n = XNEW (struct lto_object); | |
828 | n->name = name; | |
829 | n->next = NULL; | |
830 | ||
831 | if (list->last) | |
832 | list->last->next = n; | |
833 | else | |
834 | list->first = n; | |
835 | ||
836 | list->last = n; | |
837 | } | |
43ccfa36 | 838 | #endif /* OBJECT_FORMAT_NONE */ |
7bfefa9d | 839 | |
840 | ||
841 | /* Perform a link-time recompilation and relink if any of the object | |
842 | files contain LTO info. The linker command line LTO_LD_ARGV | |
843 | represents the linker command that would produce a final executable | |
844 | without the use of LTO. OBJECT_LST is a vector of object file names | |
9d75589a | 845 | appearing in LTO_LD_ARGV that are to be considered for link-time |
7bfefa9d | 846 | recompilation, where OBJECT is a pointer to the last valid element. |
847 | (This awkward convention avoids an impedance mismatch with the | |
848 | usage of similarly-named variables in main().) The elements of | |
849 | OBJECT_LST must be identical, i.e., pointer equal, to the | |
850 | corresponding arguments in LTO_LD_ARGV. | |
851 | ||
852 | Upon entry, at least one linker run has been performed without the | |
853 | use of any LTO info that might be present. Any recompilations | |
854 | necessary for template instantiations have been performed, and | |
855 | initializer/finalizer tables have been created if needed and | |
856 | included in the linker command line LTO_LD_ARGV. If any of the | |
857 | object files contain LTO info, we run the LTO back end on all such | |
858 | files, and perform the final link with the LTO back end output | |
859 | substituted for the LTO-optimized files. In some cases, a final | |
860 | link with all link-time generated code has already been performed, | |
861 | so there is no need to relink if no LTO info is found. In other | |
862 | cases, our caller has not produced the final executable, and is | |
863 | relying on us to perform the required link whether LTO info is | |
864 | present or not. In that case, the FORCE argument should be true. | |
865 | Note that the linker command line argument LTO_LD_ARGV passed into | |
866 | this function may be modified in place. */ | |
867 | ||
868 | static void | |
869 | maybe_run_lto_and_relink (char **lto_ld_argv, char **object_lst, | |
870 | const char **object, bool force) | |
871 | { | |
872 | const char **object_file = CONST_CAST2 (const char **, char **, object_lst); | |
873 | ||
874 | int num_lto_c_args = 1; /* Allow space for the terminating NULL. */ | |
875 | ||
876 | while (object_file < object) | |
877 | { | |
878 | /* If file contains LTO info, add it to the list of LTO objects. */ | |
879 | scan_prog_file (*object_file++, PASS_LTOINFO, SCAN_ALL); | |
880 | ||
881 | /* Increment the argument count by the number of object file arguments | |
882 | we will add. An upper bound suffices, so just count all of the | |
883 | object files regardless of whether they contain LTO info. */ | |
884 | num_lto_c_args++; | |
885 | } | |
886 | ||
887 | if (lto_objects.first) | |
888 | { | |
7bfefa9d | 889 | char **lto_c_argv; |
890 | const char **lto_c_ptr; | |
5121a10d | 891 | char **p; |
892 | char **lto_o_ptr; | |
7bfefa9d | 893 | struct lto_object *list; |
894 | char *lto_wrapper = getenv ("COLLECT_LTO_WRAPPER"); | |
895 | struct pex_obj *pex; | |
896 | const char *prog = "lto-wrapper"; | |
5121a10d | 897 | int lto_ld_argv_size = 0; |
898 | char **out_lto_ld_argv; | |
899 | int out_lto_ld_argv_size; | |
900 | size_t num_files; | |
7bfefa9d | 901 | |
902 | if (!lto_wrapper) | |
11091b4d | 903 | fatal_error ("COLLECT_LTO_WRAPPER must be set"); |
7bfefa9d | 904 | |
c8c65e07 | 905 | num_lto_c_args++; |
906 | ||
7bfefa9d | 907 | /* There is at least one object file containing LTO info, |
5121a10d | 908 | so we need to run the LTO back end and relink. |
909 | ||
910 | To do so we build updated ld arguments with first | |
911 | LTO object replaced by all partitions and other LTO | |
912 | objects removed. */ | |
7bfefa9d | 913 | |
7bfefa9d | 914 | lto_c_argv = (char **) xcalloc (sizeof (char *), num_lto_c_args); |
915 | lto_c_ptr = CONST_CAST2 (const char **, char **, lto_c_argv); | |
916 | ||
917 | *lto_c_ptr++ = lto_wrapper; | |
7bfefa9d | 918 | |
919 | /* Add LTO objects to the wrapper command line. */ | |
920 | for (list = lto_objects.first; list; list = list->next) | |
921 | *lto_c_ptr++ = list->name; | |
922 | ||
923 | *lto_c_ptr = NULL; | |
924 | ||
7bfefa9d | 925 | /* Run the LTO back end. */ |
926 | pex = collect_execute (prog, lto_c_argv, NULL, NULL, PEX_SEARCH); | |
927 | { | |
928 | int c; | |
929 | FILE *stream; | |
5121a10d | 930 | size_t i; |
7bfefa9d | 931 | char *start, *end; |
932 | ||
933 | stream = pex_read_output (pex, 0); | |
934 | gcc_assert (stream); | |
935 | ||
936 | num_files = 0; | |
937 | while ((c = getc (stream)) != EOF) | |
938 | { | |
939 | obstack_1grow (&temporary_obstack, c); | |
940 | if (c == '\n') | |
941 | ++num_files; | |
942 | } | |
943 | ||
944 | lto_o_files = XNEWVEC (char *, num_files + 1); | |
945 | lto_o_files[num_files] = NULL; | |
946 | start = XOBFINISH (&temporary_obstack, char *); | |
947 | for (i = 0; i < num_files; ++i) | |
948 | { | |
949 | end = start; | |
950 | while (*end != '\n') | |
951 | ++end; | |
952 | *end = '\0'; | |
953 | ||
954 | lto_o_files[i] = xstrdup (start); | |
955 | ||
956 | start = end + 1; | |
957 | } | |
958 | ||
959 | obstack_free (&temporary_obstack, temporary_firstobj); | |
960 | } | |
961 | do_wait (prog, pex); | |
962 | pex = NULL; | |
963 | ||
5121a10d | 964 | /* Compute memory needed for new LD arguments. At most number of original arguemtns |
965 | plus number of partitions. */ | |
966 | for (lto_ld_argv_size = 0; lto_ld_argv[lto_ld_argv_size]; lto_ld_argv_size++) | |
967 | ; | |
968 | out_lto_ld_argv = XCNEWVEC(char *, num_files + lto_ld_argv_size + 1); | |
969 | out_lto_ld_argv_size = 0; | |
970 | ||
7bfefa9d | 971 | /* After running the LTO back end, we will relink, substituting |
972 | the LTO output for the object files that we submitted to the | |
973 | LTO. Here, we modify the linker command line for the relink. */ | |
7bfefa9d | 974 | |
5121a10d | 975 | /* Copy all arguments until we find first LTO file. */ |
976 | p = lto_ld_argv; | |
7bfefa9d | 977 | while (*p != NULL) |
978 | { | |
979 | for (list = lto_objects.first; list; list = list->next) | |
5121a10d | 980 | if (*p == list->name) /* Note test for pointer equality! */ |
981 | break; | |
982 | if (list) | |
983 | break; | |
984 | out_lto_ld_argv[out_lto_ld_argv_size++] = *p++; | |
7bfefa9d | 985 | } |
986 | ||
5121a10d | 987 | /* Now insert all LTO partitions. */ |
988 | lto_o_ptr = lto_o_files; | |
989 | while (*lto_o_ptr) | |
990 | out_lto_ld_argv[out_lto_ld_argv_size++] = *lto_o_ptr++; | |
991 | ||
992 | /* ... and copy the rest. */ | |
993 | while (*p != NULL) | |
994 | { | |
995 | for (list = lto_objects.first; list; list = list->next) | |
996 | if (*p == list->name) /* Note test for pointer equality! */ | |
997 | break; | |
998 | if (!list) | |
999 | out_lto_ld_argv[out_lto_ld_argv_size++] = *p; | |
1000 | p++; | |
1001 | } | |
1002 | out_lto_ld_argv[out_lto_ld_argv_size++] = 0; | |
7bfefa9d | 1003 | |
1004 | /* Run the linker again, this time replacing the object files | |
1005 | optimized by the LTO with the temporary file generated by the LTO. */ | |
5121a10d | 1006 | fork_execute ("ld", out_lto_ld_argv); |
3f5e90a3 | 1007 | post_ld_pass (true); |
5121a10d | 1008 | free (lto_ld_argv); |
7bfefa9d | 1009 | |
1010 | maybe_unlink_list (lto_o_files); | |
1011 | } | |
1012 | else if (force) | |
1013 | { | |
1014 | /* Our caller is relying on us to do the link | |
1015 | even though there is no LTO back end work to be done. */ | |
3f5e90a3 | 1016 | fork_execute ("ld", lto_ld_argv); |
1017 | post_ld_pass (false); | |
7bfefa9d | 1018 | } |
1019 | } | |
832f2315 | 1020 | \f |
a92771b8 | 1021 | /* Main program. */ |
832f2315 | 1022 | |
1023 | int | |
89a1f620 | 1024 | main (int argc, char **argv) |
832f2315 | 1025 | { |
0d95286f | 1026 | static const char *const ld_suffix = "ld"; |
61f41b94 | 1027 | static const char *const plugin_ld_suffix = PLUGIN_LD_SUFFIX; |
0d95286f | 1028 | static const char *const real_ld_suffix = "real-ld"; |
1029 | static const char *const collect_ld_suffix = "collect-ld"; | |
1030 | static const char *const nm_suffix = "nm"; | |
0d95286f | 1031 | static const char *const gnm_suffix = "gnm"; |
b7c87ff2 | 1032 | #ifdef LDD_SUFFIX |
0d95286f | 1033 | static const char *const ldd_suffix = LDD_SUFFIX; |
e504db4a | 1034 | #endif |
0d95286f | 1035 | static const char *const strip_suffix = "strip"; |
0d95286f | 1036 | static const char *const gstrip_suffix = "gstrip"; |
47950139 | 1037 | |
29d774d0 | 1038 | #ifdef CROSS_DIRECTORY_STRUCTURE |
47950139 | 1039 | /* If we look for a program in the compiler directories, we just use |
1040 | the short name, since these directories are already system-specific. | |
1041 | But it we look for a program in the system directories, we need to | |
1042 | qualify the program name with the target machine. */ | |
1043 | ||
1044 | const char *const full_ld_suffix = | |
1045 | concat(target_machine, "-", ld_suffix, NULL); | |
a93e9832 | 1046 | const char *const full_plugin_ld_suffix = |
1047 | concat(target_machine, "-", plugin_ld_suffix, NULL); | |
47950139 | 1048 | const char *const full_nm_suffix = |
1049 | concat (target_machine, "-", nm_suffix, NULL); | |
1050 | const char *const full_gnm_suffix = | |
1051 | concat (target_machine, "-", gnm_suffix, NULL); | |
1052 | #ifdef LDD_SUFFIX | |
1053 | const char *const full_ldd_suffix = | |
1054 | concat (target_machine, "-", ldd_suffix, NULL); | |
1055 | #endif | |
1056 | const char *const full_strip_suffix = | |
1057 | concat (target_machine, "-", strip_suffix, NULL); | |
1058 | const char *const full_gstrip_suffix = | |
1059 | concat (target_machine, "-", gstrip_suffix, NULL); | |
1060 | #else | |
1061 | const char *const full_ld_suffix = ld_suffix; | |
a93e9832 | 1062 | const char *const full_plugin_ld_suffix = plugin_ld_suffix; |
47950139 | 1063 | const char *const full_nm_suffix = nm_suffix; |
1064 | const char *const full_gnm_suffix = gnm_suffix; | |
1065 | #ifdef LDD_SUFFIX | |
1066 | const char *const full_ldd_suffix = ldd_suffix; | |
1067 | #endif | |
1068 | const char *const full_strip_suffix = strip_suffix; | |
1069 | const char *const full_gstrip_suffix = gstrip_suffix; | |
29d774d0 | 1070 | #endif /* CROSS_DIRECTORY_STRUCTURE */ |
47950139 | 1071 | |
e504db4a | 1072 | const char *arg; |
d1058090 | 1073 | FILE *outf; |
1074 | #ifdef COLLECT_EXPORT_LIST | |
1075 | FILE *exportf; | |
d1058090 | 1076 | #endif |
e504db4a | 1077 | const char *ld_file_name; |
1078 | const char *p; | |
22f0924c | 1079 | char **c_argv; |
e504db4a | 1080 | const char **c_ptr; |
be2828ce | 1081 | char **ld1_argv; |
e504db4a | 1082 | const char **ld1; |
a93e9832 | 1083 | bool use_plugin = false; |
48e1416a | 1084 | |
912df756 | 1085 | /* The kinds of symbols we will have to consider when scanning the |
1086 | outcome of a first pass link. This is ALL to start with, then might | |
1087 | be adjusted before getting to the first pass link per se, typically on | |
1088 | AIX where we perform an early scan of objects and libraries to fetch | |
1089 | the list of global ctors/dtors and make sure they are not garbage | |
1090 | collected. */ | |
1091 | scanfilter ld1_filter = SCAN_ALL; | |
1092 | ||
be2828ce | 1093 | char **ld2_argv; |
e504db4a | 1094 | const char **ld2; |
be2828ce | 1095 | char **object_lst; |
e504db4a | 1096 | const char **object; |
f22216ac | 1097 | #ifdef TARGET_AIX_VERSION |
a5e27f17 | 1098 | int object_nbr = argc; |
f22216ac | 1099 | #endif |
832f2315 | 1100 | int first_file; |
c159e0b7 | 1101 | int num_c_args; |
1102 | char **old_argv; | |
1103 | ||
11091b4d | 1104 | p = argv[0] + strlen (argv[0]); |
1105 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
1106 | --p; | |
1107 | progname = p; | |
1108 | ||
1109 | xmalloc_set_program_name (progname); | |
1110 | ||
c159e0b7 | 1111 | old_argv = argv; |
1112 | expandargv (&argc, &argv); | |
1113 | if (argv != old_argv) | |
1114 | at_file_supplied = 1; | |
1115 | ||
3f5e90a3 | 1116 | process_args (&argc, argv); |
1117 | ||
c159e0b7 | 1118 | num_c_args = argc + 9; |
832f2315 | 1119 | |
73caa9f3 | 1120 | #ifndef HAVE_LD_DEMANGLE |
402eb8ac | 1121 | no_demangle = !! getenv ("COLLECT_NO_DEMANGLE"); |
1122 | ||
1123 | /* Suppress demangling by the real linker, which may be broken. */ | |
73caa9f3 | 1124 | putenv (xstrdup ("COLLECT_NO_DEMANGLE=1")); |
1125 | #endif | |
402eb8ac | 1126 | |
b6749968 | 1127 | #if defined (COLLECT2_HOST_INITIALIZATION) |
dd5b4b36 | 1128 | /* Perform system dependent initialization, if necessary. */ |
b6749968 | 1129 | COLLECT2_HOST_INITIALIZATION; |
3b774709 | 1130 | #endif |
1131 | ||
6b917287 | 1132 | #ifdef SIGCHLD |
1133 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
1134 | receive the signal. A different setting is inheritable */ | |
1135 | signal (SIGCHLD, SIG_DFL); | |
1136 | #endif | |
1137 | ||
4367c81f | 1138 | /* Unlock the stdio streams. */ |
9c8f076b | 1139 | unlock_std_streams (); |
4367c81f | 1140 | |
eb718689 | 1141 | gcc_init_libintl (); |
be2828ce | 1142 | |
11091b4d | 1143 | diagnostic_initialize (global_dc, 0); |
1144 | ||
be2828ce | 1145 | /* Do not invoke xcalloc before this point, since locale needs to be |
1146 | set first, in case a diagnostic is issued. */ | |
1147 | ||
402ba866 | 1148 | ld1_argv = XCNEWVEC (char *, argc + 4); |
1149 | ld1 = CONST_CAST2 (const char **, char **, ld1_argv); | |
1150 | ld2_argv = XCNEWVEC (char *, argc + 11); | |
1151 | ld2 = CONST_CAST2 (const char **, char **, ld2_argv); | |
1152 | object_lst = XCNEWVEC (char *, argc); | |
1153 | object = CONST_CAST2 (const char **, char **, object_lst); | |
be2828ce | 1154 | |
832f2315 | 1155 | #ifdef DEBUG |
1156 | debug = 1; | |
832f2315 | 1157 | #endif |
1158 | ||
e8d8647e | 1159 | /* Parse command line early for instances of -debug. This allows |
1160 | the debug flag to be set before functions like find_a_file() | |
cbcf2791 | 1161 | are called. We also look for the -flto or -flto-partition=none flag to know |
7bfefa9d | 1162 | what LTO mode we are in. */ |
e8d8647e | 1163 | { |
1164 | int i; | |
cbcf2791 | 1165 | bool no_partition = false; |
89a1f620 | 1166 | |
e8d8647e | 1167 | for (i = 1; argv[i] != NULL; i ++) |
ff2185fb | 1168 | { |
1169 | if (! strcmp (argv[i], "-debug")) | |
2bd5037b | 1170 | debug = true; |
cbcf2791 | 1171 | else if (! strcmp (argv[i], "-flto-partition=none")) |
1172 | no_partition = true; | |
1173 | else if ((! strncmp (argv[i], "-flto=", 6) | |
1174 | || ! strcmp (argv[i], "-flto")) && ! use_plugin) | |
6453a826 | 1175 | lto_mode = LTO_MODE_WHOPR; |
489113a1 | 1176 | else if (!strncmp (argv[i], "-fno-lto", 8)) |
1177 | lto_mode = LTO_MODE_NONE; | |
7bfefa9d | 1178 | else if (! strcmp (argv[i], "-plugin")) |
1179 | { | |
1180 | use_plugin = true; | |
1181 | lto_mode = LTO_MODE_NONE; | |
1182 | } | |
06fb2419 | 1183 | #ifdef COLLECT_EXPORT_LIST |
1184 | /* since -brtl, -bexport, -b64 are not position dependent | |
1185 | also check for them here */ | |
1186 | if ((argv[i][0] == '-') && (argv[i][1] == 'b')) | |
1187 | { | |
1188 | arg = argv[i]; | |
1189 | /* We want to disable automatic exports on AIX when user | |
1190 | explicitly puts an export list in command line */ | |
1191 | if (arg[2] == 'E' || strncmp (&arg[2], "export", 6) == 0) | |
1192 | export_flag = 1; | |
1193 | else if (arg[2] == '6' && arg[3] == '4') | |
1194 | aix64_flag = 1; | |
1195 | else if (arg[2] == 'r' && arg[3] == 't' && arg[4] == 'l') | |
1196 | aixrtl_flag = 1; | |
1197 | } | |
1198 | #endif | |
ff2185fb | 1199 | } |
e8d8647e | 1200 | vflag = debug; |
bcac4551 | 1201 | if (no_partition && lto_mode == LTO_MODE_WHOPR) |
cbcf2791 | 1202 | lto_mode = LTO_MODE_LTO; |
e8d8647e | 1203 | } |
1204 | ||
5258bbff | 1205 | #ifndef DEFAULT_A_OUT_NAME |
131353cd | 1206 | output_file = "a.out"; |
5258bbff | 1207 | #else |
1208 | output_file = DEFAULT_A_OUT_NAME; | |
1209 | #endif | |
131353cd | 1210 | |
d2f0b724 | 1211 | obstack_begin (&temporary_obstack, 0); |
25a1c410 | 1212 | temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0); |
aefe5019 | 1213 | |
9c948bc2 | 1214 | #ifndef HAVE_LD_DEMANGLE |
4d327eac | 1215 | current_demangling_style = auto_demangling; |
9c948bc2 | 1216 | #endif |
405711de | 1217 | p = getenv ("COLLECT_GCC_OPTIONS"); |
7802b788 | 1218 | while (p && *p) |
1219 | { | |
e504db4a | 1220 | const char *q = extract_string (&p); |
7802b788 | 1221 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) |
1222 | num_c_args++; | |
1223 | } | |
1224 | obstack_free (&temporary_obstack, temporary_firstobj); | |
6d6bf148 | 1225 | |
cc4faf12 | 1226 | /* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities |
48e61da9 | 1227 | -fno-exceptions -w -fno-whole-program */ |
1228 | num_c_args += 6; | |
22f0924c | 1229 | |
402ba866 | 1230 | c_argv = XCNEWVEC (char *, num_c_args); |
1231 | c_ptr = CONST_CAST2 (const char **, char **, c_argv); | |
22f0924c | 1232 | |
832f2315 | 1233 | if (argc < 2) |
11091b4d | 1234 | fatal_error ("no arguments"); |
832f2315 | 1235 | |
3a0eb8c2 | 1236 | #ifdef SIGQUIT |
003f6bf5 | 1237 | if (signal (SIGQUIT, SIG_IGN) != SIG_IGN) |
1238 | signal (SIGQUIT, handler); | |
3a0eb8c2 | 1239 | #endif |
003f6bf5 | 1240 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1241 | signal (SIGINT, handler); | |
3a0eb8c2 | 1242 | #ifdef SIGALRM |
003f6bf5 | 1243 | if (signal (SIGALRM, SIG_IGN) != SIG_IGN) |
1244 | signal (SIGALRM, handler); | |
3a0eb8c2 | 1245 | #endif |
1246 | #ifdef SIGHUP | |
003f6bf5 | 1247 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
1248 | signal (SIGHUP, handler); | |
3a0eb8c2 | 1249 | #endif |
003f6bf5 | 1250 | if (signal (SIGSEGV, SIG_IGN) != SIG_IGN) |
1251 | signal (SIGSEGV, handler); | |
3a0eb8c2 | 1252 | #ifdef SIGBUS |
003f6bf5 | 1253 | if (signal (SIGBUS, SIG_IGN) != SIG_IGN) |
1254 | signal (SIGBUS, handler); | |
3a0eb8c2 | 1255 | #endif |
832f2315 | 1256 | |
e533c428 | 1257 | /* Extract COMPILER_PATH and PATH into our prefix list. */ |
1258 | prefix_from_env ("COMPILER_PATH", &cpath); | |
1259 | prefix_from_env ("PATH", &path); | |
832f2315 | 1260 | |
e533c428 | 1261 | /* Try to discover a valid linker/nm/strip to use. */ |
1262 | ||
6f73c4a6 | 1263 | /* Maybe we know the right file to use (if not cross). */ |
84539f59 | 1264 | ld_file_name = 0; |
f07251bc | 1265 | #ifdef DEFAULT_LINKER |
1266 | if (access (DEFAULT_LINKER, X_OK) == 0) | |
1267 | ld_file_name = DEFAULT_LINKER; | |
1268 | if (ld_file_name == 0) | |
1269 | #endif | |
6f73c4a6 | 1270 | #ifdef REAL_LD_FILE_NAME |
1271 | ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME); | |
1272 | if (ld_file_name == 0) | |
1273 | #endif | |
d2f0b724 | 1274 | /* Search the (target-specific) compiler dirs for ld'. */ |
1275 | ld_file_name = find_a_file (&cpath, real_ld_suffix); | |
1276 | /* Likewise for `collect-ld'. */ | |
e533c428 | 1277 | if (ld_file_name == 0) |
d2f0b724 | 1278 | ld_file_name = find_a_file (&cpath, collect_ld_suffix); |
d8dc9bd6 | 1279 | /* Search the compiler directories for `ld'. We have protection against |
1280 | recursive calls in find_a_file. */ | |
2fd139da | 1281 | if (ld_file_name == 0) |
a93e9832 | 1282 | ld_file_name = find_a_file (&cpath, |
1283 | use_plugin | |
1284 | ? plugin_ld_suffix | |
1285 | : ld_suffix); | |
e533c428 | 1286 | /* Search the ordinary system bin directories |
f17a8f4e | 1287 | for `ld' (if native linking) or `TARGET-ld' (if cross). */ |
e533c428 | 1288 | if (ld_file_name == 0) |
a93e9832 | 1289 | ld_file_name = find_a_file (&path, |
1290 | use_plugin | |
1291 | ? full_plugin_ld_suffix | |
1292 | : full_ld_suffix); | |
e533c428 | 1293 | |
6f73c4a6 | 1294 | #ifdef REAL_NM_FILE_NAME |
1295 | nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME); | |
1296 | if (nm_file_name == 0) | |
1297 | #endif | |
e533c428 | 1298 | nm_file_name = find_a_file (&cpath, gnm_suffix); |
1299 | if (nm_file_name == 0) | |
1300 | nm_file_name = find_a_file (&path, full_gnm_suffix); | |
1301 | if (nm_file_name == 0) | |
1302 | nm_file_name = find_a_file (&cpath, nm_suffix); | |
e533c428 | 1303 | if (nm_file_name == 0) |
1304 | nm_file_name = find_a_file (&path, full_nm_suffix); | |
1305 | ||
b7c87ff2 | 1306 | #ifdef LDD_SUFFIX |
1307 | ldd_file_name = find_a_file (&cpath, ldd_suffix); | |
1308 | if (ldd_file_name == 0) | |
1309 | ldd_file_name = find_a_file (&path, full_ldd_suffix); | |
1310 | #endif | |
1311 | ||
6f73c4a6 | 1312 | #ifdef REAL_STRIP_FILE_NAME |
1313 | strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME); | |
1314 | if (strip_file_name == 0) | |
1315 | #endif | |
e533c428 | 1316 | strip_file_name = find_a_file (&cpath, gstrip_suffix); |
1317 | if (strip_file_name == 0) | |
1318 | strip_file_name = find_a_file (&path, full_gstrip_suffix); | |
1319 | if (strip_file_name == 0) | |
1320 | strip_file_name = find_a_file (&cpath, strip_suffix); | |
e533c428 | 1321 | if (strip_file_name == 0) |
1322 | strip_file_name = find_a_file (&path, full_strip_suffix); | |
832f2315 | 1323 | |
8989da5d | 1324 | /* Determine the full path name of the C compiler to use. */ |
22f0924c | 1325 | c_file_name = getenv ("COLLECT_GCC"); |
e77396ba | 1326 | if (c_file_name == 0) |
832f2315 | 1327 | { |
29d774d0 | 1328 | #ifdef CROSS_DIRECTORY_STRUCTURE |
e504db4a | 1329 | c_file_name = concat (target_machine, "-gcc", NULL); |
832f2315 | 1330 | #else |
e533c428 | 1331 | c_file_name = "gcc"; |
8989da5d | 1332 | #endif |
8989da5d | 1333 | } |
1334 | ||
e533c428 | 1335 | p = find_a_file (&cpath, c_file_name); |
1336 | ||
1337 | /* Here it should be safe to use the system search path since we should have | |
1338 | already qualified the name of the compiler when it is needed. */ | |
1339 | if (p == 0) | |
1340 | p = find_a_file (&path, c_file_name); | |
1341 | ||
1342 | if (p) | |
1343 | c_file_name = p; | |
832f2315 | 1344 | |
f375f2ce | 1345 | *ld1++ = *ld2++ = ld_file_name; |
832f2315 | 1346 | |
a92771b8 | 1347 | /* Make temp file names. */ |
e8b04076 | 1348 | c_file = make_temp_file (".c"); |
1349 | o_file = make_temp_file (".o"); | |
d1058090 | 1350 | #ifdef COLLECT_EXPORT_LIST |
e8b04076 | 1351 | export_file = make_temp_file (".x"); |
d1058090 | 1352 | #endif |
e8b04076 | 1353 | ldout = make_temp_file (".ld"); |
d6b5203d | 1354 | lderrout = make_temp_file (".le"); |
22f0924c | 1355 | *c_ptr++ = c_file_name; |
7e897ee0 | 1356 | *c_ptr++ = "-x"; |
1357 | *c_ptr++ = "c"; | |
832f2315 | 1358 | *c_ptr++ = "-c"; |
1359 | *c_ptr++ = "-o"; | |
1360 | *c_ptr++ = o_file; | |
1361 | ||
d1058090 | 1362 | #ifdef COLLECT_EXPORT_LIST |
1363 | /* Generate a list of directories from LIBPATH. */ | |
1364 | prefix_from_env ("LIBPATH", &libpath_lib_dirs); | |
1365 | /* Add to this list also two standard directories where | |
1366 | AIX loader always searches for libraries. */ | |
1367 | add_prefix (&libpath_lib_dirs, "/lib"); | |
1368 | add_prefix (&libpath_lib_dirs, "/usr/lib"); | |
1369 | #endif | |
1370 | ||
89a1f620 | 1371 | /* Get any options that the upper GCC wants to pass to the sub-GCC. |
d1058090 | 1372 | |
1373 | AIX support needs to know if -shared has been specified before | |
1374 | parsing commandline arguments. */ | |
1375 | ||
405711de | 1376 | p = getenv ("COLLECT_GCC_OPTIONS"); |
d1058090 | 1377 | while (p && *p) |
1378 | { | |
e504db4a | 1379 | const char *q = extract_string (&p); |
d1058090 | 1380 | if (*q == '-' && (q[1] == 'm' || q[1] == 'f')) |
92192583 | 1381 | *c_ptr++ = xstrdup (q); |
35241897 | 1382 | if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0) |
92192583 | 1383 | *c_ptr++ = xstrdup (q); |
625bfde6 | 1384 | if (strcmp (q, "-shared") == 0) |
d1058090 | 1385 | shared_obj = 1; |
d647a767 | 1386 | if (*q == '-' && q[1] == 'B') |
1387 | { | |
92192583 | 1388 | *c_ptr++ = xstrdup (q); |
d647a767 | 1389 | if (q[2] == 0) |
1390 | { | |
1391 | q = extract_string (&p); | |
92192583 | 1392 | *c_ptr++ = xstrdup (q); |
d647a767 | 1393 | } |
1394 | } | |
d1058090 | 1395 | } |
1396 | obstack_free (&temporary_obstack, temporary_firstobj); | |
cc4faf12 | 1397 | *c_ptr++ = "-fno-profile-arcs"; |
1398 | *c_ptr++ = "-fno-test-coverage"; | |
1399 | *c_ptr++ = "-fno-branch-probabilities"; | |
d1058090 | 1400 | *c_ptr++ = "-fno-exceptions"; |
6d6bf148 | 1401 | *c_ptr++ = "-w"; |
48e61da9 | 1402 | *c_ptr++ = "-fno-whole-program"; |
d1058090 | 1403 | |
22f0924c | 1404 | /* !!! When GCC calls collect2, |
1405 | it does not know whether it is calling collect2 or ld. | |
1406 | So collect2 cannot meaningfully understand any options | |
1407 | except those ld understands. | |
1408 | If you propose to make GCC pass some other option, | |
1409 | just imagine what will happen if ld is really ld!!! */ | |
1410 | ||
a92771b8 | 1411 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
22f0924c | 1412 | /* After the first file, put in the c++ rt0. */ |
1413 | ||
832f2315 | 1414 | first_file = 1; |
a92771b8 | 1415 | while ((arg = *++argv) != (char *) 0) |
832f2315 | 1416 | { |
1417 | *ld1++ = *ld2++ = arg; | |
1418 | ||
1419 | if (arg[0] == '-') | |
f314c55f | 1420 | { |
832f2315 | 1421 | switch (arg[1]) |
1422 | { | |
1423 | case 'd': | |
1424 | if (!strcmp (arg, "-debug")) | |
1425 | { | |
e8d8647e | 1426 | /* Already parsed. */ |
832f2315 | 1427 | ld1--; |
1428 | ld2--; | |
1429 | } | |
0f7571bb | 1430 | if (!strcmp (arg, "-dynamic-linker") && argv[1]) |
a0c938f0 | 1431 | { |
0f7571bb | 1432 | ++argv; |
1433 | *ld1++ = *ld2++ = *argv; | |
1434 | } | |
832f2315 | 1435 | break; |
1436 | ||
7bfefa9d | 1437 | case 'f': |
cbcf2791 | 1438 | if (strncmp (arg, "-flto", 5) == 0) |
7bfefa9d | 1439 | { |
1440 | #ifdef ENABLE_LTO | |
1441 | /* Do not pass LTO flag to the linker. */ | |
1442 | ld1--; | |
1443 | ld2--; | |
1444 | #else | |
1445 | error ("LTO support has not been enabled in this " | |
1446 | "configuration"); | |
1447 | #endif | |
1448 | } | |
a5e27f17 | 1449 | #ifdef TARGET_AIX_VERSION |
1450 | else | |
1451 | { | |
1452 | /* File containing a list of input files to process. */ | |
1453 | ||
1454 | FILE *stream; | |
1455 | char buf[MAXPATHLEN + 2]; | |
1456 | /* Number of additionnal object files. */ | |
1457 | int add_nbr = 0; | |
1458 | /* Maximum of additionnal object files before vector | |
1459 | expansion. */ | |
1460 | int add_max = 0; | |
1461 | const char *list_filename = arg + 2; | |
1462 | ||
1463 | /* Accept -fFILENAME and -f FILENAME. */ | |
1464 | if (*list_filename == '\0' && argv[1]) | |
1465 | { | |
1466 | ++argv; | |
1467 | list_filename = *argv; | |
1468 | *ld1++ = *ld2++ = *argv; | |
1469 | } | |
1470 | ||
1471 | stream = fopen (list_filename, "r"); | |
1472 | if (stream == NULL) | |
1473 | fatal_error ("can't open %s: %m", list_filename); | |
1474 | ||
1475 | while (fgets (buf, sizeof buf, stream) != NULL) | |
1476 | { | |
1477 | /* Remove end of line. */ | |
1478 | int len = strlen (buf); | |
1479 | if (len >= 1 && buf[len - 1] =='\n') | |
1480 | buf[len - 1] = '\0'; | |
1481 | ||
1482 | /* Put on object vector. | |
1483 | Note: we only expanse vector here, so we must keep | |
1484 | extra space for remaining arguments. */ | |
1485 | if (add_nbr >= add_max) | |
1486 | { | |
e4e4eb40 | 1487 | int pos = |
1488 | object - CONST_CAST2 (const char **, char **, | |
1489 | object_lst); | |
a5e27f17 | 1490 | add_max = (add_max == 0) ? 16 : add_max * 2; |
1491 | object_lst = XRESIZEVEC (char *, object_lst, | |
1492 | object_nbr + add_max); | |
e4e4eb40 | 1493 | object = CONST_CAST2 (const char **, char **, |
1494 | object_lst) + pos; | |
a5e27f17 | 1495 | object_nbr += add_max; |
1496 | } | |
1497 | *object++ = xstrdup (buf); | |
1498 | add_nbr++; | |
1499 | } | |
1500 | fclose (stream); | |
1501 | } | |
1502 | #endif | |
7bfefa9d | 1503 | break; |
1504 | ||
b7c87ff2 | 1505 | case 'l': |
1506 | if (first_file) | |
1507 | { | |
1508 | /* place o_file BEFORE this argument! */ | |
1509 | first_file = 0; | |
1510 | ld2--; | |
1511 | *ld2++ = o_file; | |
1512 | *ld2++ = arg; | |
1513 | } | |
d1058090 | 1514 | #ifdef COLLECT_EXPORT_LIST |
1515 | { | |
a0c938f0 | 1516 | /* Resolving full library name. */ |
e504db4a | 1517 | const char *s = resolve_lib_name (arg+2); |
d1058090 | 1518 | |
d1058090 | 1519 | /* Saving a full library name. */ |
1520 | add_to_list (&libs, s); | |
1521 | } | |
1522 | #endif | |
1523 | break; | |
1524 | ||
1525 | #ifdef COLLECT_EXPORT_LIST | |
1526 | /* Saving directories where to search for libraries. */ | |
89a1f620 | 1527 | case 'L': |
d1058090 | 1528 | add_prefix (&cmdline_lib_dirs, arg+2); |
b7c87ff2 | 1529 | break; |
d1058090 | 1530 | #endif |
b7c87ff2 | 1531 | |
832f2315 | 1532 | case 'o': |
661ab6cf | 1533 | if (arg[2] == '\0') |
1534 | output_file = *ld1++ = *ld2++ = *++argv; | |
eb31cde6 | 1535 | else |
661ab6cf | 1536 | output_file = &arg[2]; |
832f2315 | 1537 | break; |
1538 | ||
1539 | case 'r': | |
1540 | if (arg[2] == '\0') | |
1541 | rflag = 1; | |
1542 | break; | |
1543 | ||
8989da5d | 1544 | case 's': |
d2f0b724 | 1545 | if (arg[2] == '\0' && do_collecting) |
8989da5d | 1546 | { |
1547 | /* We must strip after the nm run, otherwise C++ linking | |
d1058090 | 1548 | will not work. Thus we strip in the second ld run, or |
8989da5d | 1549 | else with strip if there is no second ld run. */ |
1550 | strip_flag = 1; | |
1551 | ld1--; | |
1552 | } | |
1553 | break; | |
1554 | ||
832f2315 | 1555 | case 'v': |
1556 | if (arg[2] == '\0') | |
2bd5037b | 1557 | vflag = true; |
832f2315 | 1558 | break; |
5814fc8c | 1559 | |
1560 | case '-': | |
1561 | if (strcmp (arg, "--no-demangle") == 0) | |
1562 | { | |
73caa9f3 | 1563 | #ifndef HAVE_LD_DEMANGLE |
5814fc8c | 1564 | no_demangle = 1; |
1565 | ld1--; | |
1566 | ld2--; | |
73caa9f3 | 1567 | #endif |
5814fc8c | 1568 | } |
1569 | else if (strncmp (arg, "--demangle", 10) == 0) | |
1570 | { | |
5814fc8c | 1571 | #ifndef HAVE_LD_DEMANGLE |
73caa9f3 | 1572 | no_demangle = 0; |
5814fc8c | 1573 | if (arg[10] == '=') |
1574 | { | |
1575 | enum demangling_styles style | |
1576 | = cplus_demangle_name_to_style (arg+11); | |
1577 | if (style == unknown_demangling) | |
1578 | error ("unknown demangling style '%s'", arg+11); | |
1579 | else | |
1580 | current_demangling_style = style; | |
1581 | } | |
5814fc8c | 1582 | ld1--; |
1583 | ld2--; | |
73caa9f3 | 1584 | #endif |
5814fc8c | 1585 | } |
ef6fd54f | 1586 | else if (strncmp (arg, "--sysroot=", 10) == 0) |
1587 | target_system_root = arg + 10; | |
f0bf77c8 | 1588 | else if (strcmp (arg, "--version") == 0) |
2bd5037b | 1589 | vflag = true; |
f0bf77c8 | 1590 | else if (strcmp (arg, "--help") == 0) |
2bd5037b | 1591 | helpflag = true; |
5814fc8c | 1592 | break; |
832f2315 | 1593 | } |
f314c55f | 1594 | } |
78dbff7c | 1595 | else if ((p = strrchr (arg, '.')) != (char *) 0 |
d1058090 | 1596 | && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0 |
c8b793cf | 1597 | || strcmp (p, ".so") == 0 || strcmp (p, ".lo") == 0 |
1598 | || strcmp (p, ".obj") == 0)) | |
832f2315 | 1599 | { |
fc630b38 | 1600 | if (first_file) |
1601 | { | |
1602 | first_file = 0; | |
661ab6cf | 1603 | if (p[1] == 'o') |
1604 | *ld2++ = o_file; | |
1605 | else | |
1606 | { | |
1607 | /* place o_file BEFORE this argument! */ | |
1608 | ld2--; | |
1609 | *ld2++ = o_file; | |
1610 | *ld2++ = arg; | |
1611 | } | |
fc630b38 | 1612 | } |
0320a56b | 1613 | if (p[1] == 'o' || p[1] == 'l') |
fc630b38 | 1614 | *object++ = arg; |
d1058090 | 1615 | #ifdef COLLECT_EXPORT_LIST |
1616 | /* libraries can be specified directly, i.e. without -l flag. */ | |
89a1f620 | 1617 | else |
1618 | { | |
d1058090 | 1619 | /* Saving a full library name. */ |
a0c938f0 | 1620 | add_to_list (&libs, arg); |
1621 | } | |
d1058090 | 1622 | #endif |
832f2315 | 1623 | } |
1624 | } | |
1625 | ||
d1058090 | 1626 | #ifdef COLLECT_EXPORT_LIST |
1627 | /* This is added only for debugging purposes. */ | |
1628 | if (debug) | |
7802b788 | 1629 | { |
d1058090 | 1630 | fprintf (stderr, "List of libraries:\n"); |
1631 | dump_list (stderr, "\t", libs.first); | |
7802b788 | 1632 | } |
22f0924c | 1633 | |
a9b00323 | 1634 | /* The AIX linker will discard static constructors in object files if |
912df756 | 1635 | nothing else in the file is referenced, so look at them first. Unless |
1636 | we are building a shared object, ignore the eh frame tables, as we | |
1637 | would otherwise reference them all, hence drag all the corresponding | |
1638 | objects even if nothing else is referenced. */ | |
d1058090 | 1639 | { |
48e1416a | 1640 | const char **export_object_lst |
912df756 | 1641 | = CONST_CAST2 (const char **, char **, object_lst); |
48e1416a | 1642 | |
d1058090 | 1643 | struct id *list = libs.first; |
4e2fa0bf | 1644 | |
912df756 | 1645 | /* Compute the filter to use from the current one, do scan, then adjust |
1646 | the "current" filter to remove what we just included here. This will | |
1647 | control whether we need a first pass link later on or not, and what | |
1648 | will remain to be scanned there. */ | |
48e1416a | 1649 | |
1a9c54a3 | 1650 | scanfilter this_filter = ld1_filter; |
1651 | #if HAVE_AS_REF | |
1652 | if (!shared_obj) | |
1653 | this_filter &= ~SCAN_DWEH; | |
1654 | #endif | |
48e1416a | 1655 | |
912df756 | 1656 | while (export_object_lst < object) |
1657 | scan_prog_file (*export_object_lst++, PASS_OBJ, this_filter); | |
48e1416a | 1658 | |
d1058090 | 1659 | for (; list; list = list->next) |
912df756 | 1660 | scan_prog_file (list->name, PASS_FIRST, this_filter); |
48e1416a | 1661 | |
912df756 | 1662 | ld1_filter = ld1_filter & ~this_filter; |
d1058090 | 1663 | } |
4e2fa0bf | 1664 | |
1665 | if (exports.first) | |
1666 | { | |
284a7b54 | 1667 | char *buf = concat ("-bE:", export_file, NULL); |
89a1f620 | 1668 | |
4e2fa0bf | 1669 | *ld1++ = buf; |
1670 | *ld2++ = buf; | |
1671 | ||
1672 | exportf = fopen (export_file, "w"); | |
1673 | if (exportf == (FILE *) 0) | |
11091b4d | 1674 | fatal_error ("fopen %s: %m", export_file); |
4e2fa0bf | 1675 | write_aix_file (exportf, exports.first); |
1676 | if (fclose (exportf)) | |
11091b4d | 1677 | fatal_error ("fclose %s: %m", export_file); |
4e2fa0bf | 1678 | } |
a9b00323 | 1679 | #endif |
1680 | ||
832f2315 | 1681 | *c_ptr++ = c_file; |
e504db4a | 1682 | *c_ptr = *ld1 = *object = (char *) 0; |
832f2315 | 1683 | |
1684 | if (vflag) | |
a19f368c | 1685 | notice ("collect2 version %s\n", version_string); |
832f2315 | 1686 | |
2bd5037b | 1687 | if (helpflag) |
1688 | { | |
ab723605 | 1689 | printf ("Usage: collect2 [options]\n"); |
1690 | printf (" Wrap linker and generate constructor code if needed.\n"); | |
1691 | printf (" Options:\n"); | |
1692 | printf (" -debug Enable debug output\n"); | |
1693 | printf (" --help Display this information\n"); | |
1694 | printf (" -v, --version Display this program's version number\n"); | |
1695 | printf ("\n"); | |
1696 | printf ("Overview: http://gcc.gnu.org/onlinedocs/gccint/Collect2.html\n"); | |
1697 | printf ("Report bugs: %s\n", bug_report_url); | |
1698 | printf ("\n"); | |
2bd5037b | 1699 | } |
1700 | ||
832f2315 | 1701 | if (debug) |
1702 | { | |
e504db4a | 1703 | const char *ptr; |
2271b4f6 | 1704 | fprintf (stderr, "ld_file_name = %s\n", |
1705 | (ld_file_name ? ld_file_name : "not found")); | |
1706 | fprintf (stderr, "c_file_name = %s\n", | |
1707 | (c_file_name ? c_file_name : "not found")); | |
1708 | fprintf (stderr, "nm_file_name = %s\n", | |
1709 | (nm_file_name ? nm_file_name : "not found")); | |
b7c87ff2 | 1710 | #ifdef LDD_SUFFIX |
1711 | fprintf (stderr, "ldd_file_name = %s\n", | |
1712 | (ldd_file_name ? ldd_file_name : "not found")); | |
1713 | #endif | |
2271b4f6 | 1714 | fprintf (stderr, "strip_file_name = %s\n", |
1715 | (strip_file_name ? strip_file_name : "not found")); | |
1716 | fprintf (stderr, "c_file = %s\n", | |
1717 | (c_file ? c_file : "not found")); | |
1718 | fprintf (stderr, "o_file = %s\n", | |
1719 | (o_file ? o_file : "not found")); | |
22f0924c | 1720 | |
1721 | ptr = getenv ("COLLECT_GCC_OPTIONS"); | |
1722 | if (ptr) | |
1723 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
1724 | ||
1725 | ptr = getenv ("COLLECT_GCC"); | |
1726 | if (ptr) | |
1727 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
1728 | ||
1729 | ptr = getenv ("COMPILER_PATH"); | |
1730 | if (ptr) | |
1731 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
1732 | ||
397f1574 | 1733 | ptr = getenv (LIBRARY_PATH_ENV); |
22f0924c | 1734 | if (ptr) |
397f1574 | 1735 | fprintf (stderr, "%-20s= %s\n", LIBRARY_PATH_ENV, ptr); |
22f0924c | 1736 | |
1737 | fprintf (stderr, "\n"); | |
832f2315 | 1738 | } |
1739 | ||
94ca3aab | 1740 | /* Load the program, searching all libraries and attempting to provide |
912df756 | 1741 | undefined symbols from repository information. |
48e1416a | 1742 | |
912df756 | 1743 | If -r or they will be run via some other method, do not build the |
48e1416a | 1744 | constructor or destructor list, just return now. */ |
912df756 | 1745 | { |
1746 | bool early_exit | |
1747 | = rflag || (! DO_COLLECT_EXPORT_LIST && ! do_collecting); | |
1748 | ||
1749 | /* Perform the first pass link now, if we're about to exit or if we need | |
1750 | to scan for things we haven't collected yet before pursuing further. | |
1751 | ||
1752 | On AIX, the latter typically includes nothing for shared objects or | |
1753 | frame tables for an executable, out of what the required early scan on | |
1754 | objects and libraries has performed above. In the !shared_obj case, we | |
1755 | expect the relevant tables to be dragged together with their associated | |
1756 | functions from precise cross reference insertions by the compiler. */ | |
48e1416a | 1757 | |
912df756 | 1758 | if (early_exit || ld1_filter != SCAN_NOTHING) |
09d1782e | 1759 | do_tlink (ld1_argv, object_lst); |
48e1416a | 1760 | |
912df756 | 1761 | if (early_exit) |
1762 | { | |
1763 | #ifdef COLLECT_EXPORT_LIST | |
1764 | /* Make sure we delete the export file we may have created. */ | |
1765 | if (export_file != 0 && export_file[0]) | |
1766 | maybe_unlink (export_file); | |
35363d84 | 1767 | #endif |
23433d72 | 1768 | if (lto_mode != LTO_MODE_NONE) |
7bfefa9d | 1769 | maybe_run_lto_and_relink (ld1_argv, object_lst, object, false); |
3f5e90a3 | 1770 | else |
1771 | post_ld_pass (false); | |
7bfefa9d | 1772 | |
912df756 | 1773 | maybe_unlink (c_file); |
1774 | maybe_unlink (o_file); | |
1775 | return 0; | |
1776 | } | |
1777 | } | |
832f2315 | 1778 | |
912df756 | 1779 | /* Unless we have done it all already, examine the namelist and search for |
1780 | static constructors and destructors to call. Write the constructor and | |
1781 | destructor tables to a .s file and reload. */ | |
d2f0b724 | 1782 | |
912df756 | 1783 | if (ld1_filter != SCAN_NOTHING) |
1784 | scan_prog_file (output_file, PASS_FIRST, ld1_filter); | |
832f2315 | 1785 | |
b7c87ff2 | 1786 | #ifdef SCAN_LIBRARIES |
1787 | scan_libraries (output_file); | |
1788 | #endif | |
1789 | ||
832f2315 | 1790 | if (debug) |
1791 | { | |
70da6ffe | 1792 | notice_translated (ngettext ("%d constructor found\n", |
1793 | "%d constructors found\n", | |
1794 | constructors.number), | |
1795 | constructors.number); | |
1796 | notice_translated (ngettext ("%d destructor found\n", | |
1797 | "%d destructors found\n", | |
1798 | destructors.number), | |
1799 | destructors.number); | |
1800 | notice_translated (ngettext("%d frame table found\n", | |
1801 | "%d frame tables found\n", | |
1802 | frame_tables.number), | |
1803 | frame_tables.number); | |
832f2315 | 1804 | } |
1805 | ||
912df756 | 1806 | /* If the scan exposed nothing of special interest, there's no need to |
1807 | generate the glue code and relink so return now. */ | |
1808 | ||
b7c87ff2 | 1809 | if (constructors.number == 0 && destructors.number == 0 |
d757b8c9 | 1810 | && frame_tables.number == 0 |
d1058090 | 1811 | #if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST) |
b7c87ff2 | 1812 | /* If we will be running these functions ourselves, we want to emit |
d1058090 | 1813 | stubs into the shared library so that we do not have to relink |
b7c87ff2 | 1814 | dependent programs when we add static objects. */ |
1815 | && ! shared_obj | |
1816 | #endif | |
1817 | ) | |
8989da5d | 1818 | { |
912df756 | 1819 | /* Do tlink without additional code generation now if we didn't |
1820 | do it earlier for scanning purposes. */ | |
1821 | if (ld1_filter == SCAN_NOTHING) | |
1822 | do_tlink (ld1_argv, object_lst); | |
1823 | ||
7bfefa9d | 1824 | if (lto_mode) |
1825 | maybe_run_lto_and_relink (ld1_argv, object_lst, object, false); | |
1826 | ||
8989da5d | 1827 | /* Strip now if it was requested on the command line. */ |
1828 | if (strip_flag) | |
1829 | { | |
4c36ffe6 | 1830 | char **real_strip_argv = XCNEWVEC (char *, 3); |
402ba866 | 1831 | const char ** strip_argv = CONST_CAST2 (const char **, char **, |
1832 | real_strip_argv); | |
89a1f620 | 1833 | |
f9a00e58 | 1834 | strip_argv[0] = strip_file_name; |
131353cd | 1835 | strip_argv[1] = output_file; |
8989da5d | 1836 | strip_argv[2] = (char *) 0; |
e504db4a | 1837 | fork_execute ("strip", real_strip_argv); |
8989da5d | 1838 | } |
46a1b049 | 1839 | |
1840 | #ifdef COLLECT_EXPORT_LIST | |
1841 | maybe_unlink (export_file); | |
1842 | #endif | |
3f5e90a3 | 1843 | post_ld_pass (false); |
1844 | ||
1526a87c | 1845 | maybe_unlink (c_file); |
1846 | maybe_unlink (o_file); | |
8989da5d | 1847 | return 0; |
1848 | } | |
832f2315 | 1849 | |
2c0e001b | 1850 | /* Sort ctor and dtor lists by priority. */ |
9bc65db1 | 1851 | sort_ids (&constructors); |
1852 | sort_ids (&destructors); | |
1853 | ||
1611b3e1 | 1854 | maybe_unlink(output_file); |
832f2315 | 1855 | outf = fopen (c_file, "w"); |
a92771b8 | 1856 | if (outf == (FILE *) 0) |
11091b4d | 1857 | fatal_error ("fopen %s: %m", c_file); |
832f2315 | 1858 | |
1859 | write_c_file (outf, c_file); | |
1860 | ||
1861 | if (fclose (outf)) | |
11091b4d | 1862 | fatal_error ("fclose %s: %m", c_file); |
832f2315 | 1863 | |
661ab6cf | 1864 | /* Tell the linker that we have initializer and finalizer functions. */ |
1865 | #ifdef LD_INIT_SWITCH | |
a737f54e | 1866 | #ifdef COLLECT_EXPORT_LIST |
284a7b54 | 1867 | *ld2++ = concat (LD_INIT_SWITCH, ":", initname, ":", fininame, NULL); |
a737f54e | 1868 | #else |
661ab6cf | 1869 | *ld2++ = LD_INIT_SWITCH; |
1870 | *ld2++ = initname; | |
1871 | *ld2++ = LD_FINI_SWITCH; | |
1872 | *ld2++ = fininame; | |
1873 | #endif | |
a737f54e | 1874 | #endif |
661ab6cf | 1875 | |
a9b00323 | 1876 | #ifdef COLLECT_EXPORT_LIST |
1877 | if (shared_obj) | |
1878 | { | |
4e2fa0bf | 1879 | /* If we did not add export flag to link arguments before, add it to |
1880 | second link phase now. No new exports should have been added. */ | |
1881 | if (! exports.first) | |
284a7b54 | 1882 | *ld2++ = concat ("-bE:", export_file, NULL); |
4e2fa0bf | 1883 | |
d3cef9f8 | 1884 | #ifndef LD_INIT_SWITCH |
a9b00323 | 1885 | add_to_list (&exports, initname); |
1886 | add_to_list (&exports, fininame); | |
661ab6cf | 1887 | add_to_list (&exports, "_GLOBAL__DI"); |
1888 | add_to_list (&exports, "_GLOBAL__DD"); | |
d3cef9f8 | 1889 | #endif |
a9b00323 | 1890 | exportf = fopen (export_file, "w"); |
a92771b8 | 1891 | if (exportf == (FILE *) 0) |
11091b4d | 1892 | fatal_error ("fopen %s: %m", export_file); |
4e2fa0bf | 1893 | write_aix_file (exportf, exports.first); |
a9b00323 | 1894 | if (fclose (exportf)) |
11091b4d | 1895 | fatal_error ("fclose %s: %m", export_file); |
a9b00323 | 1896 | } |
1897 | #endif | |
1898 | ||
4e2fa0bf | 1899 | /* End of arguments to second link phase. */ |
1900 | *ld2 = (char*) 0; | |
1901 | ||
832f2315 | 1902 | if (debug) |
1903 | { | |
131353cd | 1904 | fprintf (stderr, "\n========== output_file = %s, c_file = %s\n", |
1905 | output_file, c_file); | |
832f2315 | 1906 | write_c_file (stderr, "stderr"); |
1907 | fprintf (stderr, "========== end of c_file\n\n"); | |
a9b00323 | 1908 | #ifdef COLLECT_EXPORT_LIST |
1909 | fprintf (stderr, "\n========== export_file = %s\n", export_file); | |
4e2fa0bf | 1910 | write_aix_file (stderr, exports.first); |
a9b00323 | 1911 | fprintf (stderr, "========== end of export_file\n\n"); |
1912 | #endif | |
832f2315 | 1913 | } |
1914 | ||
1915 | /* Assemble the constructor and destructor tables. | |
a92771b8 | 1916 | Link the tables in with the rest of the program. */ |
832f2315 | 1917 | |
f9a00e58 | 1918 | fork_execute ("gcc", c_argv); |
d1058090 | 1919 | #ifdef COLLECT_EXPORT_LIST |
8b332087 | 1920 | /* On AIX we must call tlink because of possible templates resolution. */ |
d1058090 | 1921 | do_tlink (ld2_argv, object_lst); |
7bfefa9d | 1922 | |
1923 | if (lto_mode) | |
1924 | maybe_run_lto_and_relink (ld2_argv, object_lst, object, false); | |
d1058090 | 1925 | #else |
8b332087 | 1926 | /* Otherwise, simply call ld because tlink is already done. */ |
7bfefa9d | 1927 | if (lto_mode) |
1928 | maybe_run_lto_and_relink (ld2_argv, object_lst, object, true); | |
1929 | else | |
3f5e90a3 | 1930 | { |
1931 | fork_execute ("ld", ld2_argv); | |
1932 | post_ld_pass (false); | |
1933 | } | |
832f2315 | 1934 | |
1935 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
1936 | constructors/destructors in shared libraries. */ | |
912df756 | 1937 | scan_prog_file (output_file, PASS_SECOND, SCAN_ALL); |
89a1f620 | 1938 | #endif |
832f2315 | 1939 | |
1940 | maybe_unlink (c_file); | |
1941 | maybe_unlink (o_file); | |
d1058090 | 1942 | |
1943 | #ifdef COLLECT_EXPORT_LIST | |
a9b00323 | 1944 | maybe_unlink (export_file); |
d1058090 | 1945 | #endif |
1946 | ||
832f2315 | 1947 | return 0; |
1948 | } | |
1949 | ||
1950 | \f | |
d10cfa8d | 1951 | /* Wait for a process to finish, and exit if a nonzero status is found. */ |
832f2315 | 1952 | |
d2f0b724 | 1953 | int |
6e24b140 | 1954 | collect_wait (const char *prog, struct pex_obj *pex) |
832f2315 | 1955 | { |
1956 | int status; | |
1957 | ||
6e24b140 | 1958 | if (!pex_get_status (pex, 1, &status)) |
11091b4d | 1959 | fatal_error ("can't get program status: %m"); |
6e24b140 | 1960 | pex_free (pex); |
1961 | ||
832f2315 | 1962 | if (status) |
1963 | { | |
b7826aae | 1964 | if (WIFSIGNALED (status)) |
832f2315 | 1965 | { |
b7826aae | 1966 | int sig = WTERMSIG (status); |
e4ba8ded | 1967 | error ("%s terminated with signal %d [%s]%s", |
1968 | prog, sig, strsignal(sig), | |
5519412f | 1969 | WCOREDUMP(status) ? ", core dumped" : ""); |
5fcf1827 | 1970 | collect_exit (FATAL_EXIT_CODE); |
832f2315 | 1971 | } |
1972 | ||
b7826aae | 1973 | if (WIFEXITED (status)) |
d2f0b724 | 1974 | return WEXITSTATUS (status); |
1975 | } | |
1976 | return 0; | |
1977 | } | |
1978 | ||
1979 | static void | |
6e24b140 | 1980 | do_wait (const char *prog, struct pex_obj *pex) |
d2f0b724 | 1981 | { |
6e24b140 | 1982 | int ret = collect_wait (prog, pex); |
d2f0b724 | 1983 | if (ret != 0) |
1984 | { | |
1985 | error ("%s returned %d exit status", prog, ret); | |
1986 | collect_exit (ret); | |
832f2315 | 1987 | } |
c159e0b7 | 1988 | |
1989 | if (response_file) | |
1990 | { | |
1991 | unlink (response_file); | |
1992 | response_file = NULL; | |
1993 | } | |
832f2315 | 1994 | } |
1995 | ||
1996 | \f | |
3b774709 | 1997 | /* Execute a program, and wait for the reply. */ |
832f2315 | 1998 | |
6e24b140 | 1999 | struct pex_obj * |
d6b5203d | 2000 | collect_execute (const char *prog, char **argv, const char *outname, |
7bfefa9d | 2001 | const char *errname, int flags) |
832f2315 | 2002 | { |
6e24b140 | 2003 | struct pex_obj *pex; |
2004 | const char *errmsg; | |
2005 | int err; | |
c159e0b7 | 2006 | char *response_arg = NULL; |
2007 | char *response_argv[3] ATTRIBUTE_UNUSED; | |
2008 | ||
2009 | if (HAVE_GNU_LD && at_file_supplied && argv[0] != NULL) | |
2010 | { | |
2011 | /* If using @file arguments, create a temporary file and put the | |
2012 | contents of argv into it. Then change argv to an array corresponding | |
2013 | to a single argument @FILE, where FILE is the temporary filename. */ | |
2014 | ||
2015 | char **current_argv = argv + 1; | |
2016 | char *argv0 = argv[0]; | |
2017 | int status; | |
2018 | FILE *f; | |
2019 | ||
2020 | /* Note: we assume argv contains at least one element; this is | |
2021 | checked above. */ | |
2022 | ||
2023 | response_file = make_temp_file (""); | |
2024 | ||
2025 | f = fopen (response_file, "w"); | |
2026 | ||
2027 | if (f == NULL) | |
11091b4d | 2028 | fatal_error ("could not open response file %s", response_file); |
c159e0b7 | 2029 | |
2030 | status = writeargv (current_argv, f); | |
2031 | ||
2032 | if (status) | |
11091b4d | 2033 | fatal_error ("could not write to response file %s", response_file); |
c159e0b7 | 2034 | |
2035 | status = fclose (f); | |
2036 | ||
2037 | if (EOF == status) | |
11091b4d | 2038 | fatal_error ("could not close response file %s", response_file); |
c159e0b7 | 2039 | |
2040 | response_arg = concat ("@", response_file, NULL); | |
2041 | response_argv[0] = argv0; | |
2042 | response_argv[1] = response_arg; | |
2043 | response_argv[2] = NULL; | |
2044 | ||
2045 | argv = response_argv; | |
2046 | } | |
832f2315 | 2047 | |
2048 | if (vflag || debug) | |
2049 | { | |
2050 | char **p_argv; | |
e504db4a | 2051 | const char *str; |
832f2315 | 2052 | |
f9a00e58 | 2053 | if (argv[0]) |
2054 | fprintf (stderr, "%s", argv[0]); | |
e533c428 | 2055 | else |
be2828ce | 2056 | notice ("[cannot find %s]", prog); |
e533c428 | 2057 | |
a92771b8 | 2058 | for (p_argv = &argv[1]; (str = *p_argv) != (char *) 0; p_argv++) |
832f2315 | 2059 | fprintf (stderr, " %s", str); |
2060 | ||
2061 | fprintf (stderr, "\n"); | |
2062 | } | |
2063 | ||
2064 | fflush (stdout); | |
2065 | fflush (stderr); | |
2066 | ||
d1058090 | 2067 | /* If we cannot find a program we need, complain error. Do this here |
2068 | since we might not end up needing something that we could not find. */ | |
e533c428 | 2069 | |
f9a00e58 | 2070 | if (argv[0] == 0) |
11091b4d | 2071 | fatal_error ("cannot find '%s'", prog); |
e533c428 | 2072 | |
6e24b140 | 2073 | pex = pex_init (0, "collect2", NULL); |
2074 | if (pex == NULL) | |
11091b4d | 2075 | fatal_error ("pex_init failed: %m"); |
3b774709 | 2076 | |
7bfefa9d | 2077 | errmsg = pex_run (pex, flags, argv[0], argv, outname, |
d6b5203d | 2078 | errname, &err); |
6e24b140 | 2079 | if (errmsg != NULL) |
832f2315 | 2080 | { |
6e24b140 | 2081 | if (err != 0) |
2082 | { | |
2083 | errno = err; | |
11091b4d | 2084 | fatal_error ("%s: %m", _(errmsg)); |
6e24b140 | 2085 | } |
2086 | else | |
11091b4d | 2087 | fatal_error (errmsg); |
832f2315 | 2088 | } |
3b774709 | 2089 | |
dd045aee | 2090 | free (response_arg); |
c159e0b7 | 2091 | |
6e24b140 | 2092 | return pex; |
d2f0b724 | 2093 | } |
832f2315 | 2094 | |
d2f0b724 | 2095 | static void |
89a1f620 | 2096 | fork_execute (const char *prog, char **argv) |
d2f0b724 | 2097 | { |
6e24b140 | 2098 | struct pex_obj *pex; |
2099 | ||
7bfefa9d | 2100 | pex = collect_execute (prog, argv, NULL, NULL, PEX_LAST | PEX_SEARCH); |
6e24b140 | 2101 | do_wait (prog, pex); |
832f2315 | 2102 | } |
832f2315 | 2103 | \f |
2b98e22b | 2104 | /* Unlink FILE unless we are debugging or this is the output_file |
2105 | and we may not unlink it. */ | |
832f2315 | 2106 | |
2107 | static void | |
89a1f620 | 2108 | maybe_unlink (const char *file) |
832f2315 | 2109 | { |
2b98e22b | 2110 | if (debug) |
2111 | { | |
2112 | notice ("[Leaving %s]\n", file); | |
2113 | return; | |
2114 | } | |
2115 | ||
2116 | if (file == output_file && !may_unlink_output_file) | |
2117 | return; | |
2118 | ||
2119 | unlink_if_ordinary (file); | |
832f2315 | 2120 | } |
2121 | ||
7bfefa9d | 2122 | /* Call maybe_unlink on the NULL-terminated list, FILE_LIST. */ |
2123 | ||
2124 | static void | |
2125 | maybe_unlink_list (char **file_list) | |
2126 | { | |
2127 | char **tmp = file_list; | |
2128 | ||
2129 | while (*tmp) | |
2130 | maybe_unlink (*(tmp++)); | |
2131 | } | |
2132 | ||
832f2315 | 2133 | \f |
9bc65db1 | 2134 | static long sequence_number = 0; |
2135 | ||
832f2315 | 2136 | /* Add a name to a linked list. */ |
2137 | ||
2138 | static void | |
89a1f620 | 2139 | add_to_list (struct head *head_ptr, const char *name) |
832f2315 | 2140 | { |
25a1c410 | 2141 | struct id *newid |
2142 | = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1); | |
b821b836 | 2143 | struct id *p; |
832f2315 | 2144 | strcpy (newid->name, name); |
2145 | ||
2146 | if (head_ptr->first) | |
2147 | head_ptr->last->next = newid; | |
2148 | else | |
2149 | head_ptr->first = newid; | |
2150 | ||
b821b836 | 2151 | /* Check for duplicate symbols. */ |
2152 | for (p = head_ptr->first; | |
2153 | strcmp (name, p->name) != 0; | |
2154 | p = p->next) | |
2155 | ; | |
2156 | if (p != newid) | |
2157 | { | |
2158 | head_ptr->last->next = 0; | |
2159 | free (newid); | |
2160 | return; | |
2161 | } | |
2162 | ||
2163 | newid->sequence = ++sequence_number; | |
832f2315 | 2164 | head_ptr->last = newid; |
2165 | head_ptr->number++; | |
2166 | } | |
2167 | ||
9bc65db1 | 2168 | /* Grab the init priority number from an init function name that |
2169 | looks like "_GLOBAL_.I.12345.foo". */ | |
2170 | ||
2171 | static int | |
89a1f620 | 2172 | extract_init_priority (const char *name) |
9bc65db1 | 2173 | { |
69988048 | 2174 | int pos = 0, pri; |
9bc65db1 | 2175 | |
2176 | while (name[pos] == '_') | |
2177 | ++pos; | |
2178 | pos += 10; /* strlen ("GLOBAL__X_") */ | |
2179 | ||
2c0e001b | 2180 | /* Extract init_p number from ctor/dtor name. */ |
69988048 | 2181 | pri = atoi (name + pos); |
2182 | return pri ? pri : DEFAULT_INIT_PRIORITY; | |
9bc65db1 | 2183 | } |
2184 | ||
2185 | /* Insertion sort the ids from ctor/dtor list HEAD_PTR in descending order. | |
2186 | ctors will be run from right to left, dtors from left to right. */ | |
2187 | ||
2188 | static void | |
89a1f620 | 2189 | sort_ids (struct head *head_ptr) |
9bc65db1 | 2190 | { |
2191 | /* id holds the current element to insert. id_next holds the next | |
2192 | element to insert. id_ptr iterates through the already sorted elements | |
2193 | looking for the place to insert id. */ | |
2194 | struct id *id, *id_next, **id_ptr; | |
9bc65db1 | 2195 | |
2196 | id = head_ptr->first; | |
2197 | ||
2198 | /* We don't have any sorted elements yet. */ | |
2199 | head_ptr->first = NULL; | |
2200 | ||
2201 | for (; id; id = id_next) | |
2202 | { | |
2203 | id_next = id->next; | |
2204 | id->sequence = extract_init_priority (id->name); | |
2205 | ||
2206 | for (id_ptr = &(head_ptr->first); ; id_ptr = &((*id_ptr)->next)) | |
2207 | if (*id_ptr == NULL | |
2208 | /* If the sequence numbers are the same, we put the id from the | |
2209 | file later on the command line later in the list. */ | |
2210 | || id->sequence > (*id_ptr)->sequence | |
2211 | /* Hack: do lexical compare, too. | |
2212 | || (id->sequence == (*id_ptr)->sequence | |
a0c938f0 | 2213 | && strcmp (id->name, (*id_ptr)->name) > 0) */ |
9bc65db1 | 2214 | ) |
2215 | { | |
2216 | id->next = *id_ptr; | |
2217 | *id_ptr = id; | |
2218 | break; | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | /* Now set the sequence numbers properly so write_c_file works. */ | |
2223 | for (id = head_ptr->first; id; id = id->next) | |
2224 | id->sequence = ++sequence_number; | |
2225 | } | |
2226 | ||
832f2315 | 2227 | /* Write: `prefix', the names on list LIST, `suffix'. */ |
2228 | ||
2229 | static void | |
89a1f620 | 2230 | write_list (FILE *stream, const char *prefix, struct id *list) |
832f2315 | 2231 | { |
2232 | while (list) | |
2233 | { | |
2234 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
2235 | list = list->next; | |
2236 | } | |
2237 | } | |
2238 | ||
82dc74ff | 2239 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 2240 | /* This function is really used only on AIX, but may be useful. */ |
0c87a39e | 2241 | #if 0 |
d1058090 | 2242 | static int |
89a1f620 | 2243 | is_in_list (const char *prefix, struct id *list) |
d1058090 | 2244 | { |
2245 | while (list) | |
2246 | { | |
2247 | if (!strcmp (prefix, list->name)) return 1; | |
2248 | list = list->next; | |
2249 | } | |
2250 | return 0; | |
2251 | } | |
82dc74ff | 2252 | #endif |
0c87a39e | 2253 | #endif /* COLLECT_EXPORT_LIST */ |
d1058090 | 2254 | |
2255 | /* Added for debugging purpose. */ | |
0e93a6ac | 2256 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 2257 | static void |
89a1f620 | 2258 | dump_list (FILE *stream, const char *prefix, struct id *list) |
d1058090 | 2259 | { |
2260 | while (list) | |
2261 | { | |
2262 | fprintf (stream, "%s%s,\n", prefix, list->name); | |
2263 | list = list->next; | |
2264 | } | |
2265 | } | |
0e93a6ac | 2266 | #endif |
d1058090 | 2267 | |
0e93a6ac | 2268 | #if 0 |
d1058090 | 2269 | static void |
89a1f620 | 2270 | dump_prefix_list (FILE *stream, const char *prefix, struct prefix_list *list) |
d1058090 | 2271 | { |
2272 | while (list) | |
2273 | { | |
2274 | fprintf (stream, "%s%s,\n", prefix, list->prefix); | |
2275 | list = list->next; | |
2276 | } | |
2277 | } | |
0e93a6ac | 2278 | #endif |
d1058090 | 2279 | |
832f2315 | 2280 | static void |
89a1f620 | 2281 | write_list_with_asm (FILE *stream, const char *prefix, struct id *list) |
832f2315 | 2282 | { |
2283 | while (list) | |
2284 | { | |
6dd50474 | 2285 | fprintf (stream, "%sx%d __asm__ (\"%s\");\n", |
832f2315 | 2286 | prefix, list->sequence, list->name); |
2287 | list = list->next; | |
2288 | } | |
2289 | } | |
2290 | ||
b7c87ff2 | 2291 | /* Write out the constructor and destructor tables statically (for a shared |
2292 | object), along with the functions to execute them. */ | |
2293 | ||
2294 | static void | |
89a1f620 | 2295 | write_c_file_stat (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
b7c87ff2 | 2296 | { |
e504db4a | 2297 | const char *p, *q; |
2298 | char *prefix, *r; | |
d757b8c9 | 2299 | int frames = (frame_tables.number > 0); |
b7c87ff2 | 2300 | |
2301 | /* Figure out name of output_file, stripping off .so version. */ | |
82715bcd | 2302 | q = p = lbasename (output_file); |
2303 | ||
b7c87ff2 | 2304 | while (q) |
2305 | { | |
78dbff7c | 2306 | q = strchr (q,'.'); |
b7c87ff2 | 2307 | if (q == 0) |
2308 | { | |
2309 | q = p + strlen (p); | |
2310 | break; | |
2311 | } | |
2312 | else | |
2313 | { | |
82715bcd | 2314 | if (filename_ncmp (q, SHLIB_SUFFIX, strlen (SHLIB_SUFFIX)) == 0) |
b7c87ff2 | 2315 | { |
1ba3a590 | 2316 | q += strlen (SHLIB_SUFFIX); |
b7c87ff2 | 2317 | break; |
2318 | } | |
2319 | else | |
2320 | q++; | |
2321 | } | |
2322 | } | |
2323 | /* q points to null at end of the string (or . of the .so version) */ | |
4c36ffe6 | 2324 | prefix = XNEWVEC (char, q - p + 1); |
b7c87ff2 | 2325 | strncpy (prefix, p, q - p); |
2326 | prefix[q - p] = 0; | |
e504db4a | 2327 | for (r = prefix; *r; r++) |
2328 | if (!ISALNUM ((unsigned char)*r)) | |
2329 | *r = '_'; | |
b7c87ff2 | 2330 | if (debug) |
be2828ce | 2331 | notice ("\nwrite_c_file - output name is %s, prefix is %s\n", |
2332 | output_file, prefix); | |
b7c87ff2 | 2333 | |
284a7b54 | 2334 | initname = concat ("_GLOBAL__FI_", prefix, NULL); |
2335 | fininame = concat ("_GLOBAL__FD_", prefix, NULL); | |
b7c87ff2 | 2336 | |
2337 | free (prefix); | |
2338 | ||
2358393e | 2339 | /* Write the tables as C code. */ |
b7c87ff2 | 2340 | |
2341 | fprintf (stream, "static int count;\n"); | |
2342 | fprintf (stream, "typedef void entry_pt();\n"); | |
2343 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); | |
d757b8c9 | 2344 | |
2345 | if (frames) | |
2346 | { | |
2347 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
2348 | ||
2349 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
2350 | write_list (stream, "\t\t&", frame_tables.first); | |
2351 | fprintf (stream, "\t0\n};\n"); | |
2352 | ||
ad87de1e | 2353 | /* This must match what's in frame.h. */ |
2354 | fprintf (stream, "struct object {\n"); | |
2355 | fprintf (stream, " void *pc_begin;\n"); | |
2356 | fprintf (stream, " void *pc_end;\n"); | |
2357 | fprintf (stream, " void *fde_begin;\n"); | |
2358 | fprintf (stream, " void *fde_array;\n"); | |
68b88e86 | 2359 | fprintf (stream, " __SIZE_TYPE__ count;\n"); |
ad87de1e | 2360 | fprintf (stream, " struct object *next;\n"); |
2361 | fprintf (stream, "};\n"); | |
2362 | ||
c4fa4c4d | 2363 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
cd236c08 | 2364 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
d757b8c9 | 2365 | |
2366 | fprintf (stream, "static void reg_frame () {\n"); | |
ad87de1e | 2367 | fprintf (stream, "\tstatic struct object ob;\n"); |
c4fa4c4d | 2368 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
d757b8c9 | 2369 | fprintf (stream, "\t}\n"); |
2370 | ||
2371 | fprintf (stream, "static void dereg_frame () {\n"); | |
c4fa4c4d | 2372 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
d757b8c9 | 2373 | fprintf (stream, "\t}\n"); |
2374 | } | |
2375 | ||
b7c87ff2 | 2376 | fprintf (stream, "void %s() {\n", initname); |
d757b8c9 | 2377 | if (constructors.number > 0 || frames) |
b7c87ff2 | 2378 | { |
2379 | fprintf (stream, "\tstatic entry_pt *ctors[] = {\n"); | |
2380 | write_list (stream, "\t\t", constructors.first); | |
d757b8c9 | 2381 | if (frames) |
2382 | fprintf (stream, "\treg_frame,\n"); | |
b7c87ff2 | 2383 | fprintf (stream, "\t};\n"); |
2384 | fprintf (stream, "\tentry_pt **p;\n"); | |
2385 | fprintf (stream, "\tif (count++ != 0) return;\n"); | |
d757b8c9 | 2386 | fprintf (stream, "\tp = ctors + %d;\n", constructors.number + frames); |
b7c87ff2 | 2387 | fprintf (stream, "\twhile (p > ctors) (*--p)();\n"); |
2388 | } | |
661ab6cf | 2389 | else |
2390 | fprintf (stream, "\t++count;\n"); | |
b7c87ff2 | 2391 | fprintf (stream, "}\n"); |
2392 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); | |
2393 | fprintf (stream, "void %s() {\n", fininame); | |
d757b8c9 | 2394 | if (destructors.number > 0 || frames) |
b7c87ff2 | 2395 | { |
2396 | fprintf (stream, "\tstatic entry_pt *dtors[] = {\n"); | |
2397 | write_list (stream, "\t\t", destructors.first); | |
d757b8c9 | 2398 | if (frames) |
2399 | fprintf (stream, "\tdereg_frame,\n"); | |
b7c87ff2 | 2400 | fprintf (stream, "\t};\n"); |
2401 | fprintf (stream, "\tentry_pt **p;\n"); | |
2402 | fprintf (stream, "\tif (--count != 0) return;\n"); | |
2403 | fprintf (stream, "\tp = dtors;\n"); | |
2404 | fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n", | |
d757b8c9 | 2405 | destructors.number + frames); |
b7c87ff2 | 2406 | } |
2407 | fprintf (stream, "}\n"); | |
2408 | ||
661ab6cf | 2409 | if (shared_obj) |
2410 | { | |
2f9e77d1 | 2411 | COLLECT_SHARED_INIT_FUNC(stream, initname); |
2412 | COLLECT_SHARED_FINI_FUNC(stream, fininame); | |
661ab6cf | 2413 | } |
b7c87ff2 | 2414 | } |
2415 | ||
a92771b8 | 2416 | /* Write the constructor/destructor tables. */ |
832f2315 | 2417 | |
73439ee0 | 2418 | #ifndef LD_INIT_SWITCH |
832f2315 | 2419 | static void |
89a1f620 | 2420 | write_c_file_glob (FILE *stream, const char *name ATTRIBUTE_UNUSED) |
832f2315 | 2421 | { |
2358393e | 2422 | /* Write the tables as C code. */ |
832f2315 | 2423 | |
d757b8c9 | 2424 | int frames = (frame_tables.number > 0); |
2425 | ||
832f2315 | 2426 | fprintf (stream, "typedef void entry_pt();\n\n"); |
89a1f620 | 2427 | |
77a5425a | 2428 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); |
d757b8c9 | 2429 | |
2430 | if (frames) | |
2431 | { | |
2432 | write_list_with_asm (stream, "extern void *", frame_tables.first); | |
2433 | ||
2434 | fprintf (stream, "\tstatic void *frame_table[] = {\n"); | |
2435 | write_list (stream, "\t\t&", frame_tables.first); | |
2436 | fprintf (stream, "\t0\n};\n"); | |
2437 | ||
285cf8b8 | 2438 | /* This must match what's in frame.h. */ |
2439 | fprintf (stream, "struct object {\n"); | |
2440 | fprintf (stream, " void *pc_begin;\n"); | |
2441 | fprintf (stream, " void *pc_end;\n"); | |
2442 | fprintf (stream, " void *fde_begin;\n"); | |
2443 | fprintf (stream, " void *fde_array;\n"); | |
2444 | fprintf (stream, " __SIZE_TYPE__ count;\n"); | |
2445 | fprintf (stream, " struct object *next;\n"); | |
2446 | fprintf (stream, "};\n"); | |
2447 | ||
c4fa4c4d | 2448 | fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n"); |
cd236c08 | 2449 | fprintf (stream, "extern void *__deregister_frame_info (void *);\n"); |
d757b8c9 | 2450 | |
2451 | fprintf (stream, "static void reg_frame () {\n"); | |
285cf8b8 | 2452 | fprintf (stream, "\tstatic struct object ob;\n"); |
c4fa4c4d | 2453 | fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n"); |
d757b8c9 | 2454 | fprintf (stream, "\t}\n"); |
2455 | ||
2456 | fprintf (stream, "static void dereg_frame () {\n"); | |
c4fa4c4d | 2457 | fprintf (stream, "\t__deregister_frame_info (frame_table);\n"); |
d757b8c9 | 2458 | fprintf (stream, "\t}\n"); |
2459 | } | |
2460 | ||
832f2315 | 2461 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); |
d757b8c9 | 2462 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number + frames); |
22f0924c | 2463 | write_list (stream, "\t", constructors.first); |
d757b8c9 | 2464 | if (frames) |
2465 | fprintf (stream, "\treg_frame,\n"); | |
832f2315 | 2466 | fprintf (stream, "\t0\n};\n\n"); |
2467 | ||
77a5425a | 2468 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); |
832f2315 | 2469 | |
2470 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
d757b8c9 | 2471 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number + frames); |
22f0924c | 2472 | write_list (stream, "\t", destructors.first); |
d757b8c9 | 2473 | if (frames) |
2474 | fprintf (stream, "\tdereg_frame,\n"); | |
832f2315 | 2475 | fprintf (stream, "\t0\n};\n\n"); |
2476 | ||
b0b9762f | 2477 | fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN); |
2478 | fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN); | |
832f2315 | 2479 | } |
73439ee0 | 2480 | #endif /* ! LD_INIT_SWITCH */ |
832f2315 | 2481 | |
b7c87ff2 | 2482 | static void |
89a1f620 | 2483 | write_c_file (FILE *stream, const char *name) |
b7c87ff2 | 2484 | { |
661ab6cf | 2485 | #ifndef LD_INIT_SWITCH |
2486 | if (! shared_obj) | |
b7c87ff2 | 2487 | write_c_file_glob (stream, name); |
661ab6cf | 2488 | else |
2489 | #endif | |
2490 | write_c_file_stat (stream, name); | |
b7c87ff2 | 2491 | } |
a9b00323 | 2492 | |
d1058090 | 2493 | #ifdef COLLECT_EXPORT_LIST |
a9b00323 | 2494 | static void |
89a1f620 | 2495 | write_aix_file (FILE *stream, struct id *list) |
d1058090 | 2496 | { |
d1058090 | 2497 | for (; list; list = list->next) |
4e2fa0bf | 2498 | { |
2499 | fputs (list->name, stream); | |
2500 | putc ('\n', stream); | |
2501 | } | |
d1058090 | 2502 | } |
2503 | #endif | |
832f2315 | 2504 | \f |
22f0924c | 2505 | #ifdef OBJECT_FORMAT_NONE |
832f2315 | 2506 | |
23433d72 | 2507 | /* Check to make sure the file is an LTO object file. */ |
7bfefa9d | 2508 | |
2509 | static bool | |
23433d72 | 2510 | maybe_lto_object_file (const char *prog_name) |
7bfefa9d | 2511 | { |
2512 | FILE *f; | |
23433d72 | 2513 | unsigned char buf[4]; |
2514 | int i; | |
2515 | ||
2516 | static unsigned char elfmagic[4] = { 0x7f, 'E', 'L', 'F' }; | |
2517 | static unsigned char coffmagic[2] = { 0x4c, 0x01 }; | |
85880558 | 2518 | static unsigned char coffmagic_x64[2] = { 0x64, 0x86 }; |
23433d72 | 2519 | static unsigned char machomagic[4][4] = { |
2520 | { 0xcf, 0xfa, 0xed, 0xfe }, | |
2521 | { 0xce, 0xfa, 0xed, 0xfe }, | |
2522 | { 0xfe, 0xed, 0xfa, 0xcf }, | |
2523 | { 0xfe, 0xed, 0xfa, 0xce } | |
2524 | }; | |
7bfefa9d | 2525 | |
4d992eb6 | 2526 | f = fopen (prog_name, "rb"); |
7bfefa9d | 2527 | if (f == NULL) |
2528 | return false; | |
2529 | if (fread (buf, sizeof (buf), 1, f) != 1) | |
2530 | buf[0] = 0; | |
2531 | fclose (f); | |
23433d72 | 2532 | |
2533 | if (memcmp (buf, elfmagic, sizeof (elfmagic)) == 0 | |
85880558 | 2534 | || memcmp (buf, coffmagic, sizeof (coffmagic)) == 0 |
2535 | || memcmp (buf, coffmagic_x64, sizeof (coffmagic_x64)) == 0) | |
23433d72 | 2536 | return true; |
2537 | for (i = 0; i < 4; i++) | |
2538 | if (memcmp (buf, machomagic[i], sizeof (machomagic[i])) == 0) | |
2539 | return true; | |
2540 | ||
2541 | return false; | |
7bfefa9d | 2542 | } |
2543 | ||
22f0924c | 2544 | /* Generic version to scan the name list of the loaded program for |
912df756 | 2545 | the symbols g++ uses for static constructors and destructors. */ |
832f2315 | 2546 | |
2547 | static void | |
912df756 | 2548 | scan_prog_file (const char *prog_name, scanpass which_pass, |
2549 | scanfilter filter) | |
832f2315 | 2550 | { |
89a1f620 | 2551 | void (*int_handler) (int); |
6e24b140 | 2552 | #ifdef SIGQUIT |
89a1f620 | 2553 | void (*quit_handler) (int); |
6e24b140 | 2554 | #endif |
e504db4a | 2555 | char *real_nm_argv[4]; |
402ba866 | 2556 | const char **nm_argv = CONST_CAST2 (const char **, char**, real_nm_argv); |
832f2315 | 2557 | int argc = 0; |
6e24b140 | 2558 | struct pex_obj *pex; |
2559 | const char *errmsg; | |
2560 | int err; | |
832f2315 | 2561 | char *p, buf[1024]; |
2562 | FILE *inf; | |
7bfefa9d | 2563 | int found_lto = 0; |
832f2315 | 2564 | |
b7c87ff2 | 2565 | if (which_pass == PASS_SECOND) |
832f2315 | 2566 | return; |
2567 | ||
4d992eb6 | 2568 | /* LTO objects must be in a known format. This check prevents |
7bfefa9d | 2569 | us from accepting an archive containing LTO objects, which |
9d75589a | 2570 | gcc cannot currently handle. */ |
23433d72 | 2571 | if (which_pass == PASS_LTOINFO && !maybe_lto_object_file (prog_name)) |
7bfefa9d | 2572 | return; |
2573 | ||
d1058090 | 2574 | /* If we do not have an `nm', complain. */ |
e533c428 | 2575 | if (nm_file_name == 0) |
11091b4d | 2576 | fatal_error ("cannot find 'nm'"); |
e533c428 | 2577 | |
b7c87ff2 | 2578 | nm_argv[argc++] = nm_file_name; |
832f2315 | 2579 | if (NM_FLAGS[0] != '\0') |
22f0924c | 2580 | nm_argv[argc++] = NM_FLAGS; |
832f2315 | 2581 | |
22f0924c | 2582 | nm_argv[argc++] = prog_name; |
a92771b8 | 2583 | nm_argv[argc++] = (char *) 0; |
832f2315 | 2584 | |
832f2315 | 2585 | /* Trace if needed. */ |
2586 | if (vflag) | |
2587 | { | |
e504db4a | 2588 | const char **p_argv; |
2589 | const char *str; | |
832f2315 | 2590 | |
a92771b8 | 2591 | for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) |
832f2315 | 2592 | fprintf (stderr, " %s", str); |
2593 | ||
2594 | fprintf (stderr, "\n"); | |
2595 | } | |
2596 | ||
2597 | fflush (stdout); | |
2598 | fflush (stderr); | |
2599 | ||
6e24b140 | 2600 | pex = pex_init (PEX_USE_PIPES, "collect2", NULL); |
2601 | if (pex == NULL) | |
11091b4d | 2602 | fatal_error ("pex_init failed: %m"); |
832f2315 | 2603 | |
7bfefa9d | 2604 | errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, HOST_BIT_BUCKET, |
2605 | &err); | |
6e24b140 | 2606 | if (errmsg != NULL) |
832f2315 | 2607 | { |
6e24b140 | 2608 | if (err != 0) |
2609 | { | |
2610 | errno = err; | |
11091b4d | 2611 | fatal_error ("%s: %m", _(errmsg)); |
6e24b140 | 2612 | } |
2613 | else | |
11091b4d | 2614 | fatal_error (errmsg); |
832f2315 | 2615 | } |
2616 | ||
89a1f620 | 2617 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
3a0eb8c2 | 2618 | #ifdef SIGQUIT |
89a1f620 | 2619 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
3a0eb8c2 | 2620 | #endif |
832f2315 | 2621 | |
6e24b140 | 2622 | inf = pex_read_output (pex, 0); |
2623 | if (inf == NULL) | |
11091b4d | 2624 | fatal_error ("can't open nm output: %m"); |
832f2315 | 2625 | |
2626 | if (debug) | |
7bfefa9d | 2627 | { |
2628 | if (which_pass == PASS_LTOINFO) | |
2629 | fprintf (stderr, "\nnm output with LTO info marker symbol.\n"); | |
2630 | else | |
2631 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); | |
2632 | } | |
832f2315 | 2633 | |
2634 | /* Read each line of nm output. */ | |
a92771b8 | 2635 | while (fgets (buf, sizeof buf, inf) != (char *) 0) |
832f2315 | 2636 | { |
2637 | int ch, ch2; | |
22f0924c | 2638 | char *name, *end; |
832f2315 | 2639 | |
7bfefa9d | 2640 | if (debug) |
2641 | fprintf (stderr, "\t%s\n", buf); | |
2642 | ||
2643 | if (which_pass == PASS_LTOINFO) | |
2644 | { | |
2645 | if (found_lto) | |
2646 | continue; | |
2647 | ||
2648 | /* Look for the LTO info marker symbol, and add filename to | |
2649 | the LTO objects list if found. */ | |
2650 | for (p = buf; (ch = *p) != '\0' && ch != '\n'; p++) | |
4d992eb6 | 2651 | if (ch == ' ' && p[1] == '_' && p[2] == '_' |
2652 | && (strncmp (p + (p[3] == '_' ? 2 : 1), "__gnu_lto_v1", 12) == 0) | |
2653 | && ISSPACE (p[p[3] == '_' ? 14 : 13])) | |
7bfefa9d | 2654 | { |
2655 | add_lto_object (<o_objects, prog_name); | |
2656 | ||
2657 | /* We need to read all the input, so we can't just | |
2658 | return here. But we can avoid useless work. */ | |
2659 | found_lto = 1; | |
2660 | ||
2661 | break; | |
2662 | } | |
2663 | ||
2664 | continue; | |
2665 | } | |
2666 | ||
832f2315 | 2667 | /* If it contains a constructor or destructor name, add the name |
912df756 | 2668 | to the appropriate list unless this is a kind of symbol we're |
2669 | not supposed to even consider. */ | |
832f2315 | 2670 | |
2671 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
b7c87ff2 | 2672 | if (ch == ' ' && p[1] == 'U' && p[2] == ' ') |
2673 | break; | |
832f2315 | 2674 | |
b7c87ff2 | 2675 | if (ch != '_') |
832f2315 | 2676 | continue; |
89a1f620 | 2677 | |
22f0924c | 2678 | name = p; |
2679 | /* Find the end of the symbol name. | |
d1058090 | 2680 | Do not include `|', because Encore nm can tack that on the end. */ |
cc404a47 | 2681 | for (end = p; (ch2 = *end) != '\0' && !ISSPACE (ch2) && ch2 != '|'; |
22f0924c | 2682 | end++) |
2683 | continue; | |
832f2315 | 2684 | |
6f73c4a6 | 2685 | |
832f2315 | 2686 | *end = '\0'; |
22f0924c | 2687 | switch (is_ctor_dtor (name)) |
832f2315 | 2688 | { |
efc8f8d6 | 2689 | case SYM_CTOR: |
912df756 | 2690 | if (! (filter & SCAN_CTOR)) |
2691 | break; | |
b7c87ff2 | 2692 | if (which_pass != PASS_LIB) |
2693 | add_to_list (&constructors, name); | |
22f0924c | 2694 | break; |
832f2315 | 2695 | |
efc8f8d6 | 2696 | case SYM_DTOR: |
912df756 | 2697 | if (! (filter & SCAN_DTOR)) |
2698 | break; | |
b7c87ff2 | 2699 | if (which_pass != PASS_LIB) |
2700 | add_to_list (&destructors, name); | |
2701 | break; | |
2702 | ||
efc8f8d6 | 2703 | case SYM_INIT: |
912df756 | 2704 | if (! (filter & SCAN_INIT)) |
2705 | break; | |
b7c87ff2 | 2706 | if (which_pass != PASS_LIB) |
11091b4d | 2707 | fatal_error ("init function found in object %s", prog_name); |
c45f936d | 2708 | #ifndef LD_INIT_SWITCH |
b7c87ff2 | 2709 | add_to_list (&constructors, name); |
c45f936d | 2710 | #endif |
b7c87ff2 | 2711 | break; |
2712 | ||
efc8f8d6 | 2713 | case SYM_FINI: |
912df756 | 2714 | if (! (filter & SCAN_FINI)) |
2715 | break; | |
b7c87ff2 | 2716 | if (which_pass != PASS_LIB) |
11091b4d | 2717 | fatal_error ("fini function found in object %s", prog_name); |
c45f936d | 2718 | #ifndef LD_FINI_SWITCH |
22f0924c | 2719 | add_to_list (&destructors, name); |
c45f936d | 2720 | #endif |
22f0924c | 2721 | break; |
832f2315 | 2722 | |
efc8f8d6 | 2723 | case SYM_DWEH: |
912df756 | 2724 | if (! (filter & SCAN_DWEH)) |
2725 | break; | |
d757b8c9 | 2726 | if (which_pass != PASS_LIB) |
2727 | add_to_list (&frame_tables, name); | |
c3393573 | 2728 | break; |
d757b8c9 | 2729 | |
22f0924c | 2730 | default: /* not a constructor or destructor */ |
2731 | continue; | |
832f2315 | 2732 | } |
832f2315 | 2733 | } |
2734 | ||
2735 | if (debug) | |
2736 | fprintf (stderr, "\n"); | |
2737 | ||
6e24b140 | 2738 | do_wait (nm_file_name, pex); |
832f2315 | 2739 | |
2740 | signal (SIGINT, int_handler); | |
3a0eb8c2 | 2741 | #ifdef SIGQUIT |
832f2315 | 2742 | signal (SIGQUIT, quit_handler); |
3a0eb8c2 | 2743 | #endif |
832f2315 | 2744 | } |
2745 | ||
b7c87ff2 | 2746 | #ifdef LDD_SUFFIX |
2747 | ||
2748 | /* Use the List Dynamic Dependencies program to find shared libraries that | |
2749 | the output file depends upon and their initialization/finalization | |
2750 | routines, if any. */ | |
2751 | ||
89a1f620 | 2752 | static void |
2753 | scan_libraries (const char *prog_name) | |
b7c87ff2 | 2754 | { |
2755 | static struct head libraries; /* list of shared libraries found */ | |
2756 | struct id *list; | |
89a1f620 | 2757 | void (*int_handler) (int); |
6e24b140 | 2758 | #ifdef SIGQUIT |
89a1f620 | 2759 | void (*quit_handler) (int); |
6e24b140 | 2760 | #endif |
ba40f012 | 2761 | char *real_ldd_argv[4]; |
ecf52e84 | 2762 | const char **ldd_argv = CONST_CAST2 (const char **, char **, real_ldd_argv); |
b7c87ff2 | 2763 | int argc = 0; |
6e24b140 | 2764 | struct pex_obj *pex; |
2765 | const char *errmsg; | |
2766 | int err; | |
b7c87ff2 | 2767 | char buf[1024]; |
2768 | FILE *inf; | |
2769 | ||
d1058090 | 2770 | /* If we do not have an `ldd', complain. */ |
b7c87ff2 | 2771 | if (ldd_file_name == 0) |
2772 | { | |
1e5fcbe2 | 2773 | error ("cannot find 'ldd'"); |
b7c87ff2 | 2774 | return; |
2775 | } | |
2776 | ||
2777 | ldd_argv[argc++] = ldd_file_name; | |
2778 | ldd_argv[argc++] = prog_name; | |
2779 | ldd_argv[argc++] = (char *) 0; | |
2780 | ||
b7c87ff2 | 2781 | /* Trace if needed. */ |
2782 | if (vflag) | |
2783 | { | |
e504db4a | 2784 | const char **p_argv; |
2785 | const char *str; | |
b7c87ff2 | 2786 | |
2787 | for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) | |
2788 | fprintf (stderr, " %s", str); | |
2789 | ||
2790 | fprintf (stderr, "\n"); | |
2791 | } | |
2792 | ||
2793 | fflush (stdout); | |
2794 | fflush (stderr); | |
2795 | ||
6e24b140 | 2796 | pex = pex_init (PEX_USE_PIPES, "collect2", NULL); |
2797 | if (pex == NULL) | |
11091b4d | 2798 | fatal_error ("pex_init failed: %m"); |
b7c87ff2 | 2799 | |
6e24b140 | 2800 | errmsg = pex_run (pex, 0, ldd_file_name, real_ldd_argv, NULL, NULL, &err); |
2801 | if (errmsg != NULL) | |
b7c87ff2 | 2802 | { |
6e24b140 | 2803 | if (err != 0) |
2804 | { | |
2805 | errno = err; | |
11091b4d | 2806 | fatal_error ("%s: %m", _(errmsg)); |
6e24b140 | 2807 | } |
2808 | else | |
11091b4d | 2809 | fatal_error (errmsg); |
b7c87ff2 | 2810 | } |
2811 | ||
5b6b3be8 | 2812 | int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN); |
b7c87ff2 | 2813 | #ifdef SIGQUIT |
5b6b3be8 | 2814 | quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN); |
b7c87ff2 | 2815 | #endif |
2816 | ||
6e24b140 | 2817 | inf = pex_read_output (pex, 0); |
2818 | if (inf == NULL) | |
11091b4d | 2819 | fatal_error ("can't open ldd output: %m"); |
b7c87ff2 | 2820 | |
2821 | if (debug) | |
be2828ce | 2822 | notice ("\nldd output with constructors/destructors.\n"); |
b7c87ff2 | 2823 | |
2824 | /* Read each line of ldd output. */ | |
2825 | while (fgets (buf, sizeof buf, inf) != (char *) 0) | |
2826 | { | |
0f2b564d | 2827 | int ch2; |
b7c87ff2 | 2828 | char *name, *end, *p = buf; |
2829 | ||
a92771b8 | 2830 | /* Extract names of libraries and add to list. */ |
b7c87ff2 | 2831 | PARSE_LDD_OUTPUT (p); |
2832 | if (p == 0) | |
2833 | continue; | |
2834 | ||
2835 | name = p; | |
2836 | if (strncmp (name, "not found", sizeof ("not found") - 1) == 0) | |
11091b4d | 2837 | fatal_error ("dynamic dependency %s not found", buf); |
b7c87ff2 | 2838 | |
a92771b8 | 2839 | /* Find the end of the symbol name. */ |
89a1f620 | 2840 | for (end = p; |
cc404a47 | 2841 | (ch2 = *end) != '\0' && ch2 != '\n' && !ISSPACE (ch2) && ch2 != '|'; |
b7c87ff2 | 2842 | end++) |
2843 | continue; | |
2844 | *end = '\0'; | |
2845 | ||
2846 | if (access (name, R_OK) == 0) | |
a0c938f0 | 2847 | add_to_list (&libraries, name); |
b7c87ff2 | 2848 | else |
11091b4d | 2849 | fatal_error ("unable to open dynamic dependency '%s'", buf); |
b7c87ff2 | 2850 | |
2851 | if (debug) | |
2852 | fprintf (stderr, "\t%s\n", buf); | |
2853 | } | |
2854 | if (debug) | |
2855 | fprintf (stderr, "\n"); | |
2856 | ||
6e24b140 | 2857 | do_wait (ldd_file_name, pex); |
b7c87ff2 | 2858 | |
2859 | signal (SIGINT, int_handler); | |
2860 | #ifdef SIGQUIT | |
2861 | signal (SIGQUIT, quit_handler); | |
2862 | #endif | |
2863 | ||
21dda4ee | 2864 | /* Now iterate through the library list adding their symbols to |
b7c87ff2 | 2865 | the list. */ |
2866 | for (list = libraries.first; list; list = list->next) | |
18d8a00d | 2867 | scan_prog_file (list->name, PASS_LIB, SCAN_ALL); |
b7c87ff2 | 2868 | } |
2869 | ||
2870 | #endif /* LDD_SUFFIX */ | |
b7c87ff2 | 2871 | |
22f0924c | 2872 | #endif /* OBJECT_FORMAT_NONE */ |
2873 | ||
2874 | \f | |
2875 | /* | |
2876 | * COFF specific stuff. | |
2877 | */ | |
2878 | ||
2879 | #ifdef OBJECT_FORMAT_COFF | |
2880 | ||
8ddac116 | 2881 | #if defined (EXTENDED_COFF) |
c8b793cf | 2882 | |
77a5425a | 2883 | # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax) |
2884 | # define GCC_SYMENT SYMR | |
c3393573 | 2885 | # define GCC_OK_SYMBOL(X) ((X).st == stProc || (X).st == stGlobal) |
77a5425a | 2886 | # define GCC_SYMINC(X) (1) |
2887 | # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax) | |
2888 | # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0) | |
c8b793cf | 2889 | |
22f0924c | 2890 | #else |
c8b793cf | 2891 | |
77a5425a | 2892 | # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms) |
2893 | # define GCC_SYMENT SYMENT | |
8ddac116 | 2894 | # if defined (C_WEAKEXT) |
2895 | # define GCC_OK_SYMBOL(X) \ | |
2896 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
a0c938f0 | 2897 | ((X).n_scnum > N_UNDEF) && \ |
2898 | (aix64_flag \ | |
2899 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2900 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
8ddac116 | 2901 | # define GCC_UNDEF_SYMBOL(X) \ |
2902 | (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \ | |
a0c938f0 | 2903 | ((X).n_scnum == N_UNDEF)) |
8ddac116 | 2904 | # else |
2905 | # define GCC_OK_SYMBOL(X) \ | |
2906 | (((X).n_sclass == C_EXT) && \ | |
a0c938f0 | 2907 | ((X).n_scnum > N_UNDEF) && \ |
2908 | (aix64_flag \ | |
2909 | || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \ | |
2910 | || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))) | |
8ddac116 | 2911 | # define GCC_UNDEF_SYMBOL(X) \ |
2912 | (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF)) | |
2913 | # endif | |
77a5425a | 2914 | # define GCC_SYMINC(X) ((X).n_numaux+1) |
2915 | # define GCC_SYMZERO(X) 0 | |
c8b793cf | 2916 | |
2917 | /* 0757 = U803XTOCMAGIC (AIX 4.3) and 0767 = U64_TOCMAGIC (AIX V5) */ | |
cabc7147 | 2918 | #if TARGET_AIX_VERSION >= 51 |
c8b793cf | 2919 | # define GCC_CHECK_HDR(X) \ |
2920 | ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ | |
2921 | || (HEADER (X).f_magic == 0767 && aix64_flag)) | |
2922 | #else | |
9ae139a2 | 2923 | # define GCC_CHECK_HDR(X) \ |
2924 | ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \ | |
2925 | || (HEADER (X).f_magic == 0757 && aix64_flag)) | |
22f0924c | 2926 | #endif |
2927 | ||
c8b793cf | 2928 | #endif |
2929 | ||
805e22b2 | 2930 | #ifdef COLLECT_EXPORT_LIST |
2931 | /* Array of standard AIX libraries which should not | |
2932 | be scanned for ctors/dtors. */ | |
2933 | static const char *const aix_std_libs[] = { | |
2934 | "/unix", | |
2935 | "/lib/libc.a", | |
2936 | "/lib/libm.a", | |
2937 | "/lib/libc_r.a", | |
2938 | "/lib/libm_r.a", | |
2939 | "/usr/lib/libc.a", | |
2940 | "/usr/lib/libm.a", | |
2941 | "/usr/lib/libc_r.a", | |
2942 | "/usr/lib/libm_r.a", | |
2943 | "/usr/lib/threads/libc.a", | |
2944 | "/usr/ccs/lib/libc.a", | |
2945 | "/usr/ccs/lib/libm.a", | |
2946 | "/usr/ccs/lib/libc_r.a", | |
2947 | "/usr/ccs/lib/libm_r.a", | |
2948 | NULL | |
2949 | }; | |
2950 | ||
2951 | /* This function checks the filename and returns 1 | |
2952 | if this name matches the location of a standard AIX library. */ | |
89a1f620 | 2953 | static int ignore_library (const char *); |
805e22b2 | 2954 | static int |
89a1f620 | 2955 | ignore_library (const char *name) |
805e22b2 | 2956 | { |
329cbab5 | 2957 | const char *const *p; |
ef6fd54f | 2958 | size_t length; |
329cbab5 | 2959 | |
ef6fd54f | 2960 | if (target_system_root[0] != '\0') |
2961 | { | |
2962 | length = strlen (target_system_root); | |
2963 | if (strncmp (name, target_system_root, length) != 0) | |
2964 | return 0; | |
2965 | name += length; | |
2966 | } | |
329cbab5 | 2967 | for (p = &aix_std_libs[0]; *p != NULL; ++p) |
2968 | if (strcmp (name, *p) == 0) | |
2969 | return 1; | |
805e22b2 | 2970 | return 0; |
2971 | } | |
2972 | #endif /* COLLECT_EXPORT_LIST */ | |
2973 | ||
31a83412 | 2974 | #if defined (HAVE_DECL_LDGETNAME) && !HAVE_DECL_LDGETNAME |
89a1f620 | 2975 | extern char *ldgetname (LDFILE *, GCC_SYMENT *); |
31a83412 | 2976 | #endif |
22f0924c | 2977 | |
2978 | /* COFF version to scan the name list of the loaded program for | |
912df756 | 2979 | the symbols g++ uses for static constructors and destructors. */ |
22f0924c | 2980 | |
2981 | static void | |
912df756 | 2982 | scan_prog_file (const char *prog_name, scanpass which_pass, |
2983 | scanfilter filter) | |
22f0924c | 2984 | { |
f64f3678 | 2985 | LDFILE *ldptr = NULL; |
22f0924c | 2986 | int sym_index, sym_count; |
d1058090 | 2987 | int is_shared = 0; |
22f0924c | 2988 | |
a9b00323 | 2989 | if (which_pass != PASS_FIRST && which_pass != PASS_OBJ) |
22f0924c | 2990 | return; |
2991 | ||
d1058090 | 2992 | #ifdef COLLECT_EXPORT_LIST |
2993 | /* We do not need scanning for some standard C libraries. */ | |
2994 | if (which_pass == PASS_FIRST && ignore_library (prog_name)) | |
2995 | return; | |
22f0924c | 2996 | |
d1058090 | 2997 | /* On AIX we have a loop, because there is not much difference |
2998 | between an object and an archive. This trick allows us to | |
2999 | eliminate scan_libraries() function. */ | |
3000 | do | |
22f0924c | 3001 | { |
d1058090 | 3002 | #endif |
e504db4a | 3003 | /* Some platforms (e.g. OSF4) declare ldopen as taking a |
a0c938f0 | 3004 | non-const char * filename parameter, even though it will not |
3005 | modify that string. So we must cast away const-ness here, | |
888fe6b2 | 3006 | using CONST_CAST to prevent complaints from -Wcast-qual. */ |
3007 | if ((ldptr = ldopen (CONST_CAST (char *, prog_name), ldptr)) != NULL) | |
77a5425a | 3008 | { |
9ae139a2 | 3009 | if (! MY_ISCOFF (HEADER (ldptr).f_magic)) |
11091b4d | 3010 | fatal_error ("%s: not a COFF file", prog_name); |
22f0924c | 3011 | |
d1058090 | 3012 | if (GCC_CHECK_HDR (ldptr)) |
77a5425a | 3013 | { |
d1058090 | 3014 | sym_count = GCC_SYMBOLS (ldptr); |
3015 | sym_index = GCC_SYMZERO (ldptr); | |
9ae139a2 | 3016 | |
3017 | #ifdef COLLECT_EXPORT_LIST | |
3018 | /* Is current archive member a shared object? */ | |
3019 | is_shared = HEADER (ldptr).f_flags & F_SHROBJ; | |
3020 | #endif | |
3021 | ||
d1058090 | 3022 | while (sym_index < sym_count) |
3023 | { | |
3024 | GCC_SYMENT symbol; | |
3025 | ||
3026 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) | |
3027 | break; | |
3028 | sym_index += GCC_SYMINC (symbol); | |
3029 | ||
3030 | if (GCC_OK_SYMBOL (symbol)) | |
3031 | { | |
3032 | char *name; | |
22f0924c | 3033 | |
d1058090 | 3034 | if ((name = ldgetname (ldptr, &symbol)) == NULL) |
21dda4ee | 3035 | continue; /* Should never happen. */ |
22f0924c | 3036 | |
a9b00323 | 3037 | #ifdef XCOFF_DEBUGGING_INFO |
d1058090 | 3038 | /* All AIX function names have a duplicate entry |
3039 | beginning with a dot. */ | |
3040 | if (*name == '.') | |
3041 | ++name; | |
22f0924c | 3042 | #endif |
3043 | ||
d1058090 | 3044 | switch (is_ctor_dtor (name)) |
3045 | { | |
efc8f8d6 | 3046 | case SYM_CTOR: |
912df756 | 3047 | if (! (filter & SCAN_CTOR)) |
3048 | break; | |
a737f54e | 3049 | if (! is_shared) |
3050 | add_to_list (&constructors, name); | |
d3cef9f8 | 3051 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d1058090 | 3052 | if (which_pass == PASS_OBJ) |
3053 | add_to_list (&exports, name); | |
d1058090 | 3054 | #endif |
3055 | break; | |
3056 | ||
efc8f8d6 | 3057 | case SYM_DTOR: |
912df756 | 3058 | if (! (filter & SCAN_DTOR)) |
3059 | break; | |
a737f54e | 3060 | if (! is_shared) |
3061 | add_to_list (&destructors, name); | |
d3cef9f8 | 3062 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d1058090 | 3063 | if (which_pass == PASS_OBJ) |
3064 | add_to_list (&exports, name); | |
d1058090 | 3065 | #endif |
3066 | break; | |
3067 | ||
3068 | #ifdef COLLECT_EXPORT_LIST | |
efc8f8d6 | 3069 | case SYM_INIT: |
912df756 | 3070 | if (! (filter & SCAN_INIT)) |
3071 | break; | |
a737f54e | 3072 | #ifndef LD_INIT_SWITCH |
d1058090 | 3073 | if (is_shared) |
3074 | add_to_list (&constructors, name); | |
a737f54e | 3075 | #endif |
d1058090 | 3076 | break; |
3077 | ||
efc8f8d6 | 3078 | case SYM_FINI: |
912df756 | 3079 | if (! (filter & SCAN_FINI)) |
3080 | break; | |
a737f54e | 3081 | #ifndef LD_INIT_SWITCH |
d1058090 | 3082 | if (is_shared) |
3083 | add_to_list (&destructors, name); | |
a737f54e | 3084 | #endif |
d1058090 | 3085 | break; |
3086 | #endif | |
3087 | ||
efc8f8d6 | 3088 | case SYM_DWEH: |
912df756 | 3089 | if (! (filter & SCAN_DWEH)) |
3090 | break; | |
c3393573 | 3091 | if (! is_shared) |
3092 | add_to_list (&frame_tables, name); | |
d3cef9f8 | 3093 | #if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH) |
d14933cf | 3094 | if (which_pass == PASS_OBJ) |
3095 | add_to_list (&exports, name); | |
d14933cf | 3096 | #endif |
c3393573 | 3097 | break; |
3098 | ||
d1058090 | 3099 | default: /* not a constructor or destructor */ |
3100 | #ifdef COLLECT_EXPORT_LIST | |
d3cef9f8 | 3101 | /* Explicitly export all global symbols when |
3102 | building a shared object on AIX, but do not | |
3103 | re-export symbols from another shared object | |
3104 | and do not export symbols if the user | |
3105 | provides an explicit export list. */ | |
3106 | if (shared_obj && !is_shared | |
3107 | && which_pass == PASS_OBJ && !export_flag) | |
3108 | add_to_list (&exports, name); | |
d1058090 | 3109 | #endif |
3110 | continue; | |
3111 | } | |
22f0924c | 3112 | |
d1058090 | 3113 | if (debug) |
a737f54e | 3114 | #if !defined(EXTENDED_COFF) |
d1058090 | 3115 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", |
3116 | symbol.n_scnum, symbol.n_sclass, | |
3117 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
3118 | name); | |
22f0924c | 3119 | #else |
d1058090 | 3120 | fprintf (stderr, |
ad6c9a58 | 3121 | "\tiss = %5d, value = %5ld, index = %5d, name = %s\n", |
3122 | symbol.iss, (long) symbol.value, symbol.index, name); | |
d1058090 | 3123 | #endif |
3124 | } | |
d1058090 | 3125 | } |
77a5425a | 3126 | } |
9ae139a2 | 3127 | #ifdef COLLECT_EXPORT_LIST |
3128 | else | |
3129 | { | |
3130 | /* If archive contains both 32-bit and 64-bit objects, | |
3131 | we want to skip objects in other mode so mismatch normal. */ | |
3132 | if (debug) | |
3133 | fprintf (stderr, "%s : magic=%o aix64=%d mismatch\n", | |
3134 | prog_name, HEADER (ldptr).f_magic, aix64_flag); | |
3135 | } | |
3136 | #endif | |
22f0924c | 3137 | } |
d1058090 | 3138 | else |
3139 | { | |
11091b4d | 3140 | fatal_error ("%s: cannot open as COFF file", prog_name); |
d1058090 | 3141 | } |
3142 | #ifdef COLLECT_EXPORT_LIST | |
3143 | /* On AIX loop continues while there are more members in archive. */ | |
22f0924c | 3144 | } |
d1058090 | 3145 | while (ldclose (ldptr) == FAILURE); |
3146 | #else | |
3147 | /* Otherwise we simply close ldptr. */ | |
22f0924c | 3148 | (void) ldclose(ldptr); |
d1058090 | 3149 | #endif |
22f0924c | 3150 | } |
02159c3f | 3151 | #endif /* OBJECT_FORMAT_COFF */ |
97d49287 | 3152 | |
d1058090 | 3153 | #ifdef COLLECT_EXPORT_LIST |
d1058090 | 3154 | /* Given a library name without "lib" prefix, this function |
3155 | returns a full library name including a path. */ | |
3156 | static char * | |
89a1f620 | 3157 | resolve_lib_name (const char *name) |
d1058090 | 3158 | { |
3159 | char *lib_buf; | |
3160 | int i, j, l = 0; | |
07090bac | 3161 | /* Library extensions for AIX dynamic linking. */ |
3162 | const char * const libexts[2] = {"a", "so"}; | |
f2156a9c | 3163 | |
d1058090 | 3164 | for (i = 0; libpaths[i]; i++) |
3165 | if (libpaths[i]->max_len > l) | |
3166 | l = libpaths[i]->max_len; | |
3167 | ||
225ab426 | 3168 | lib_buf = XNEWVEC (char, l + strlen(name) + 10); |
d1058090 | 3169 | |
3170 | for (i = 0; libpaths[i]; i++) | |
3171 | { | |
3172 | struct prefix_list *list = libpaths[i]->plist; | |
3173 | for (; list; list = list->next) | |
3174 | { | |
ba21f363 | 3175 | /* The following lines are needed because path_prefix list |
82715bcd | 3176 | may contain directories both with trailing DIR_SEPARATOR and |
ba21f363 | 3177 | without it. */ |
3178 | const char *p = ""; | |
82715bcd | 3179 | if (!IS_DIR_SEPARATOR (list->prefix[strlen(list->prefix)-1])) |
ba21f363 | 3180 | p = "/"; |
07090bac | 3181 | for (j = 0; j < 2; j++) |
97d49287 | 3182 | { |
89a1f620 | 3183 | sprintf (lib_buf, "%s%slib%s.%s", |
07090bac | 3184 | list->prefix, p, name, |
3185 | libexts[(j + aixrtl_flag) % 2]); | |
3186 | if (debug) fprintf (stderr, "searching for: %s\n", lib_buf); | |
d1058090 | 3187 | if (file_exists (lib_buf)) |
97d49287 | 3188 | { |
07090bac | 3189 | if (debug) fprintf (stderr, "found: %s\n", lib_buf); |
d1058090 | 3190 | return (lib_buf); |
97d49287 | 3191 | } |
97d49287 | 3192 | } |
97d49287 | 3193 | } |
3194 | } | |
d1058090 | 3195 | if (debug) |
3196 | fprintf (stderr, "not found\n"); | |
3197 | else | |
11091b4d | 3198 | fatal_error ("library lib%s not found", name); |
d1058090 | 3199 | return (NULL); |
3200 | } | |
02159c3f | 3201 | #endif /* COLLECT_EXPORT_LIST */ |
3f5e90a3 | 3202 | |
3203 | #ifdef COLLECT_RUN_DSYMUTIL | |
3204 | static int flag_dsym = false; | |
3205 | static int flag_idsym = false; | |
3206 | ||
3207 | static void | |
3208 | process_args (int *argcp, char **argv) { | |
3209 | int i, j; | |
3210 | int argc = *argcp; | |
3211 | for (i=0; i<argc; ++i) | |
3212 | { | |
3213 | if (strcmp (argv[i], "-dsym") == 0) | |
3214 | { | |
3215 | flag_dsym = true; | |
3216 | /* Remove the flag, as we handle all processing for it. */ | |
3217 | j = i; | |
3218 | do | |
3219 | argv[j] = argv[j+1]; | |
3220 | while (++j < argc); | |
3221 | --i; | |
3222 | argc = --(*argcp); | |
3223 | } | |
3224 | else if (strcmp (argv[i], "-idsym") == 0) | |
3225 | { | |
3226 | flag_idsym = true; | |
3227 | /* Remove the flag, as we handle all processing for it. */ | |
3228 | j = i; | |
3229 | do | |
3230 | argv[j] = argv[j+1]; | |
3231 | while (++j < argc); | |
3232 | --i; | |
3233 | argc = --(*argcp); | |
3234 | } | |
3235 | } | |
3236 | } | |
3237 | ||
3238 | static void | |
3239 | do_dsymutil (const char *output_file) { | |
3240 | const char *dsymutil = DSYMUTIL + 1; | |
3241 | struct pex_obj *pex; | |
3242 | char **real_argv = XCNEWVEC (char *, 3); | |
3243 | const char ** argv = CONST_CAST2 (const char **, char **, | |
3244 | real_argv); | |
3245 | ||
3246 | argv[0] = dsymutil; | |
3247 | argv[1] = output_file; | |
3248 | argv[2] = (char *) 0; | |
3249 | ||
3250 | pex = collect_execute (dsymutil, real_argv, NULL, NULL, PEX_LAST | PEX_SEARCH); | |
3251 | do_wait (dsymutil, pex); | |
3252 | } | |
3253 | ||
3254 | static void | |
3255 | post_ld_pass (bool temp_file) { | |
3256 | if (!(temp_file && flag_idsym) && !flag_dsym) | |
3257 | return; | |
3258 | ||
3259 | do_dsymutil (output_file); | |
3260 | } | |
3261 | #else | |
3262 | static void | |
3263 | process_args (int *argcp ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) { } | |
3264 | static void post_ld_pass (bool temp_file ATTRIBUTE_UNUSED) { } | |
3265 | #endif |