lib2funcs.S (__xtensa_sync_caches): Flush data cache even if it is configured to...
[gcc.git] / libobjc / ChangeLog
1 2003-03-12 Andreas Schwab <schwab@suse.de>
2
3 * aclocal.m4 (GLIBCPP_EXPORT_INSTALL_INFO): Avoid trailing /. in
4 glibcpp_toolexeclibdir.
5 * configure: Rebuilt.
6
7 2003-02-20 Alexandre Oliva <aoliva@redhat.com>
8
9 * configure.in: Propagate ORIGINAL_LD_FOR_MULTILIBS to
10 config.status.
11 * configure: Rebuilt.
12
13 2003-01-27 Alexandre Oliva <aoliva@redhat.com>
14
15 * aclocal.m4 (glibcpp_toolexeclibdir): Instead of
16 $(MULTISUBDIR), use `$CC -print-multi-os-directory`, unless
17 version_specific_libs is enabled.
18 * configure: Rebuilt.
19
20 2003-01-09 Christian Cornelssen <ccorn@cs.tu-berlin.de>
21
22 * Makefile.in (FLAGS_TO_PASS): Also pass DESTDIR.
23 (install-libs, install-headers): Prepend $(DESTDIR) to
24 destination paths in all (un)installation commands.
25
26 2002-12-02 Zack Weinberg <zack@codesourcery.com>
27
28 * thr-objc.c: Include coretypes.h and tm.h.
29
30 2002-12-01 Zack Weinberg <zack@codesourcery.com>
31
32 * encoding.c, sendmsg.c: Include coretypes.h and tm.h.
33
34 2002-11-26 Nathanael Nerode <neroden@gcc.gnu.org>
35
36 * configure.in: Remove skip-this-dir support.
37 * configure: Regenerate.
38
39 2002-09-22 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
40
41 * Makefile.in (all): Fix multilib parallel build.
42
43 Thu Sep 12 12:44:37 2002 Nicola Pero <n.pero@mi.flashnet.it>
44
45 * sendmsg.c (nil_method): Declare not to take a variable number of
46 args.
47 (objc_msg_lookup): Cast nil_method to IMP before returning it.
48 (objc_msg_lookup_super): The same.
49
50 2002-09-10 Jan Hubicka <jh@suse.cz>
51
52 * nil_method.c (nil_method): No longer defined with variable
53 arguments.
54
55 2002-07-02 Rodney Brown <rbrown64@csc.com.au>
56
57 * objc/encoding.h: Fix formatting.
58 * objc/hash.h: Likewise.
59 * objc/objc-api.h: Likewise.
60 * objc/runtime.h: Likewise.
61 * objc/thr.h: Likewise.
62 * archive.c: Likewise.
63 * class.c: Likewise.
64 * encoding.c: Likewise.
65 * gc.c: Likewise.
66 * hash.c: Likewise.
67 * init.c: Likewise.
68 * misc.c: Likewise.
69 * nil_method.c: Likewise.
70 * objects.c: Likewise.
71 * sarray.c: Likewise.
72 * selector.c: Likewise.
73 * sendmsg.c: Likewise.
74 * thr-mach.c: Likewise.
75 * thr.c: Likewise.
76
77 2002-06-25 DJ Delorie <dj@redhat.com>
78
79 * aclocal.m4 (GLIBCPP_CONFIGURE): Split out
80 GLIBCPP_TOPREL_CONFIGURE.
81 * configure.in: Call it before AC_CANONICAL_SYSTEM.
82 * configure: Regenerate.
83
84 2002-06-21 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
85
86 * Object.m (forward, read, write): Fix unused parameter warnings.
87 * encoding.c: Include <stdlib.h>.
88 (target_flags): Mark with attribute unused.
89 (atoi): Delete.
90 * runtime.h (__objc_selector_max_index): Change to unsigned int.
91 (__objc_generate_gc_type_description): Prototype.
92 * selector.c (__objc_selector_max_index): Change to unsigned int.
93
94 Mon Jun 17 18:37:42 2002 Nicola Pero <n.pero@mi.flashnet.it>
95
96 * sendmsg.c (__objc_get_forward_imp): Fix warning by making sure
97 we always have a return value: if __objc_msg_forward does not
98 supply a forwarding implementation, return the default
99 __builtin_apply based one.
100
101 2002-06-15 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
102
103 * Object.m: Fix signed/unsigned warning.
104 * Protocol.m: Likewise.
105 * archive.c: Always include stdlib.h.
106 (objc_read_short, objc_read_unsigned_short, objc_read_int,
107 objc_read_long, __objc_read_nbyte_uint, __objc_read_nbyte_ulong):
108 Fix signed/unsigned warning.
109 (objc_write_type, objc_read_type, objc_write_types,
110 objc_read_types): Ensure ctype 8-bit safety.
111 (__objc_no_write, __objc_no_read): Mark unused parameters.
112 * class.c (class_table_setup): Specify void arg.
113 * encoding.c (atoi, objc_sizeof_type, objc_alignof_type,
114 objc_skip_typespec, objc_skip_offset,
115 objc_layout_structure_next_member): Ensure ctype 8-bit safety.
116 (objc_layout_structure_next_member): Ensure variables are
117 initialized.
118 * gc.c (__objc_generate_gc_type_description,
119 class_ivar_set_gcinvisible): Mark unused parameters.
120 * init.c (__objc_send_load, __objc_destroy_class_tree_node): Mark
121 unused parameters.
122 (__objc_init_protocols) Fix signed/unsigned warning.
123 * nil_method.c (nil_method): Mark unused parameters.
124 * thr.h (objc_thread_callback): Specify void arg.
125 * sarray.c (sarray_new, sarray_realloc, sarray_free): Fix
126 signed/unsigned warning.
127 (sarray_free): Fix formatting.
128 * selector.c (sel_types_match): Ensure ctype 8-bit safety.
129 * sendmsg.c (__objc_init_install_dtable) Mark unused parameters.
130
131 2002-06-09 Andreas Jaeger <aj@suse.de>
132
133 * encoding.c (objc_layout_structure_next_member): Remove unused
134 variable.
135
136 2002-05-20 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
137
138 * Makefile.in (SHELL): Set to @SHELL@.
139 (WARN_CFLAGS): New.
140 (ALL_CFLAGS): Add $(WARN_CFLAGS).
141
142 2002-05-16 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
143
144 * aclocal.m4: Allow for PWDCMD to override hardcoded pwd.
145 * configure: Regenerate.
146
147 2002-05-08 Alexandre Oliva <aoliva@redhat.com>
148
149 * configure.in (ORIGINAL_LD_FOR_MULTILIBS): Preserve LD at
150 script entry, and set LD to it when configuring multilibs.
151 * configure: Rebuilt.
152
153 2002-04-19 David O'Brien <obrien@FreeBSD.org>
154
155 * encoding.c (MAX, MIN, ROUNDING): #undef before defining.
156
157 2002-04-09 Hans-Peter Nilsson <hp@bitrange.com>
158
159 PR objc/6107
160 * objc/objc-api.h (struct objc_protocol_list): Change type of
161 member count from int to size_t.
162
163 2002-02-11 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
164
165 PR libobjc/4039
166 * aclocal.m4: Replace with version copied from libstdc++-v3.
167 * configure.in: Update for changes to aclocal and Makefile.
168 * configure: Regenerate.
169 * Makefile.in: Correct install of multilibs and shared libs, use
170 INSTALL_DATA for include files.
171
172 Mon Dec 17 17:02:12 2001 Nicola Pero <nicola@brainstorm.co.uk>
173
174 * init.c (__objc_exec_class): Fixed bug in the loop on unclaimed
175 categories - when an unclaimed category was found, the loop was
176 doing two steps forward instead of one, so that in certain cases
177 it was failing to properly load all the categories. (Reported
178 with fix by Alexander Malmberg <alexander@malmberg.org>).
179
180 2001-11-14 Aldy Hernandez <aldyh@redhat.com>
181
182 * encoding.c: Add target_flags.
183
184 2001-11-07 Aldy Hernandez <aldyh@redhat.com>
185
186 * objc/objc-api.h (_C_VECTOR): New.
187
188 * encoding.c (VECTOR_TYPE): New.
189
190 Mon Oct 29 21:29:21 2001 Nicola Pero <n.pero@mi.flashnet.it>
191
192 * class.c: Rewritten the class table to use optimized, lock-free
193 lookup. This more than doubles the speed of class method
194 invocations. (class_table_setup), (class_table_insert),
195 (class_table_replace), (class_table_get_safe),
196 (class_table_next), (class_table_print),
197 (class_table_print_histogram): New functions.
198 (__objc_init_class_tables): Use class_table_setup.
199 (__objc_add_class_to_hash): Use class_table_get_safe and
200 class_table_insert. (objc_lookup_class), (objc_get_class): Do not
201 assert the existence of the table; do not lock the runtime; use
202 class_table_get_safe. (objc_next_class): Use class_table_next.
203 (__objc_resolve_class_links): Use class_table_next.
204 (class_pose_as): Use class_table_replace.
205
206 2001-09-10 Ovidiu Predescu <ovidiu@cup.hp.com>
207
208 * gc.c: Removed the DEBUG declaration.
209
210 Wed Jul 18 12:48:56 2001 Nicola Pero <n.pero@mi.flashnet.it>
211
212 * thr.c (objc_mutex_lock): Invoke __objc_thread_id directly,
213 rather than through objc_thread_id, to save a function call.
214 (objc_mutex_trylock, objc_mutex_unlock, objc_condition_wait):
215 Ditto.
216
217 Mon Jul 16 12:15:00 2001 Nicola Pero <n.pero@mi.flashnet.it>
218
219 * objc/objc-api.h (object_is_class): Fixed - buggy code was trying
220 to cast an id to a Class, which can not be done. Make the check
221 by using CLS_ISMETA on the class pointer instead.
222 (object_is_meta_class): Similar fix.
223
224 2001-06-09 Alexandre Oliva <aoliva@redhat.com>, Stephen L Moshier <moshier@mediaone.net>
225
226 * configure.in (AC_EXEEXT): Work around in case it expands to
227 nothing, as in autoconf 2.50.
228 * acinclude.m4: Likewise.
229 * configure: Rebuilt.
230
231 2001-06-08 Nicola Pero <n.pero@mi.flashnet.it>
232
233 * THREADS: Explain that when we compile libobjc inside GCC, we
234 always use thr-objc.c as a backend, which uses GCC's thread code.
235
236 2001-06-06 Richard Frith-Macdonald <rrfm@gnu.org>
237
238 * init.c (__objc_send_message_in_list): When setting a new entry
239 in __objc_load_methods use the method IMP as key, but check to see
240 if the method is in the hashtable by looking at the IMP also.
241 Also ... call the method after adding it to the hashtable rather
242 than before ... thus preventing an obscure possibility of infinite
243 recursion if a +load method itself loads a subclass.
244
245 2001-05-25 Ovidiu Predescu <ovidiu@cup.hp.com>
246
247 * init.c (__objc_send_message_in_list): When setting a new entry
248 in __objc_load_methods use the method name as key, not the method
249 IMP (reported by Richard Frith-Macdonald <richard@brainstorm.co.uk>).
250
251 2001-05-09 Joseph S. Myers <jsm28@cam.ac.uk>
252
253 * objc-features.texi: Move to ../gcc/objc.texi.
254 * fdl.texi: Remove.
255 * Makefile.in: Don't generate documentation from
256 objc-features.texi.
257
258 2001-05-01 Mark Mitchell <mark@codesourcery.com>
259
260 * fdl.texi: New file.
261 * objc-features.texi: Simplify.
262 * Makefile.in: Adjust accordingly.
263
264 2001-04-30 Mark Mitchell <mark@codesourcery.com>
265
266 * objc-features.texi: Use the GFDL.
267
268 Wed Mar 21 04:44:58 EST 2001 John Wehle (john@feith.com)
269
270 * encoding.c (REAL_TYPE): Define.
271
272 2001-03-19 David Edelsohn <edelsohn@gnu.org>
273
274 * encoding.c (TYPE_MODE): Define.
275
276 2001-03-14 Nicola Pero <n.pero@mi.flashnet.it>
277
278 * thr.c (objc_thread_add): New function.
279 (objc_thread_remove): Ditto.
280 * objc/thr.h: Declare them.
281 * libobjc.def: Mention them.
282
283 2001-02-28 Ovidiu Predescu <ovidiu@cup.hp.com>
284
285 * objc-features.texi: Document the @compatibility_alias compiler
286 directive (description from Nicola Pero <n.pero@mi.flashnet.it>).
287
288 Fri Feb 23 18:12:00 2001 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
289
290 * sendmsg.c (__objc_forward): Delete strlen() declaration.
291
292 2001-02-08 Geoffrey Keating <geoffk@redhat.com>
293
294 * configure.in: Don't run AC_PROG_CC_WORKS or AC_EXEEXT, because
295 we're not interested in the result and they might fail.
296 * configure: Regenerated.
297
298 2001-01-12 Joseph S. Myers <jsm28@cam.ac.uk>
299
300 * objc-features.texi: Use @email.
301
302 2001-01-12 Joseph S. Myers <jsm28@cam.ac.uk>
303
304 * sendmsg.c (__objc_print_dtable_stats): Don't use #ifdef inside
305 printf.
306
307 2000-01-11 Richard Earnshaw <rearnsha@arm.com>
308
309 * encoding.c (STRUCTURE_SIZE_BOUNDARY): Redefine in a way that
310 determines the value dynamically.
311
312 Wed Jan 3 00:49:10 2001 Ovidiu Predescu <ovidiu@cup.hp.com>
313
314 * sendmsg.c: Added __objc_msg_forward, a hook that allows external
315 libraries to provide a function that returns the real forwarding
316 function. This can alleviate problems __builtin_apply() and
317 friends have on various platforms. (Solution suggested by Helge
318 Hess.)
319
320 * objc/objc-api.h: Define __objc_msg_forward.
321
322 * sendmsg.c: Define gen_rtx_REG.
323
324 2000-12-06 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
325
326 * thr-rtems.c: New file. Stub to compile.
327
328 2000-09-06 Alexandre Oliva <aoliva@redhat.com>
329
330 * configure: Rebuilt with new libtool.m4.
331
332 Tue Aug 15 00:38:56 2000 Ovidiu Predescu <ovidiu@cup.hp.com>
333
334 * configure.in: Create a config.h file. Check for <sched.h>.
335 * configure: Regenerate.
336
337 * config.h.in: Check for <sched.h>.
338
339 2000-08-14 Zack Weinberg <zack@wolery.cumb.org>
340
341 * configure: Regenerate after change to ../libtool.m4.
342
343 2000-08-14 Andreas Schwab <schwab@suse.de>
344
345 * objc-features.texi (Top): Move @menu at end of node.
346
347 2000-08-11 Manfred Hollstein <manfredh@redhat.com>
348
349 * objc-features.texi: Move @node Top before @menu.
350
351 Sun Aug 6 23:27:49 2000 Ovidiu Predescu <ovidiu@cup.hp.com>
352
353 * objc-features.texi: Documented the new -fconstant-string-class
354 option.
355
356 Sun Aug 6 22:51:16 2000 Ovidiu Predescu <ovidiu@cup.hp.com>
357
358 * thr-posix.c: Integrated Chris Ball's <cball@fmco.com> changes to
359 improve the Posix thread support for Objective-C.
360
361 2000-08-04 Zack Weinberg <zack@wolery.cumb.org>
362
363 * aclocal.m4: Replace copy of ../libtool.m4 with
364 sinclude(../libtool.m4).
365
366 Fri Jul 28 08:58:02 2000 Nicola Pero <nicola@brainstorm.co.uk>
367
368 * configure.in: Added libtool support; build shared libraries
369 if --enable-shared was passed on command line.
370 * Makefile.in: Modified most compilation commands to use libtool.
371 * aclocal.m4: New symbolic link to the ../libtool.m4, from the
372 libtool distribution.
373
374 Sat Jul 29 00:10:21 2000 Ovidiu Predescu <ovidiu@cup.hp.com>
375
376 * sarray.c, Object.m: Removed the explicit prototypes for strlen
377 and memcpy on 64-bit platforms (Suggested by Rodney Brown
378 <rdb@cup.hp.com>).
379
380 2000-05-12 H.J. Lu (hjl@gnu.org)
381
382 * Makefile.in (GTHREAD_FLAGS): New.
383 (ALL_CFLAGS): Add $(GTHREAD_FLAGS).
384 (OBJC_THREAD_FILE): Changed to thr-objc.
385
386 * configure.in (GTHREAD_FLAGS): New, check and replace it for
387 Makefile.
388 (OBJC_THREAD_FILE): Removed.
389
390 * thr-objc.c: New.
391
392 2000-07-13 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
393
394 * objc/hash.h: Include string.h.
395
396 2000-04-15 David Edelsohn <edelsohn@gnu.org>
397
398 * Object.m (strlen): 64-bit PowerPC is a 64bit platform as well.
399
400 2000-04-12 Jakub Jelinek <jakub@redhat.com>
401
402 * Object.m (strlen): Provide prototype on all 64bit platforms,
403 not only alpha.
404 * sarray.c (memcpy): Likewise.
405 * encoding.c (objc_layout_finish_structure): Don't use
406 ROUND_TYPE_ALIGN on sparc.
407
408 * encoding.c (objc_layout_structure_next_member): Do the whole
409 procedure even for the first member, so that we get correct
410 alignment.
411
412 2000-03-29 Zack Weinberg <zack@wolery.cumb.org>
413
414 * objc/Protocol.h, objc/objc-list.h: Change #endif labels to
415 comments.
416
417 2000-02-23 Zack Weinberg <zack@wolery.cumb.org>
418
419 * Makefile.in: Add -DIN_TARGET_LIBS to ALL_CFLAGS.
420
421 Thu Sep 23 07:19:12 1999 Chris Ball <cball@fmco.com>
422
423 * thr-posix.c (__objc_mutex_deallocate): made deallocate work.
424
425 Tue Sep 21 07:47:10 1999 Jeffrey A Law (law@cygnus.com)
426
427 * Makefile.in (gc.o, gc_gc.o): Do not pass -fgnu-runtime to
428 the compiler when building C code.
429
430 Fri Aug 6 23:32:29 1999 Daniel Jacobowitz <drow@drow.them.org>
431
432 * Makefile.in (FLAGS_TO_PASS): Include prefix, exec_prefix,
433 libdir, libsubdir and tooldir.
434
435 Mon Jun 21 05:40:15 1999 John David Anglin <dave@hiauly1>
436
437 * init.c (__objc_force_linking): Make global.
438
439 Thu May 20 03:20:59 1999 Jeffrey A Law (law@cygnus.com)
440
441 * configure.in (AC_EXEEXT): Remove call.
442 (compiler_name): Explicitly check with no extension and .exe
443 extension.
444 * configure: Regenerate.
445
446 Sun Apr 25 01:15:34 1999 Mumit Khan <khan@xraylith.wisc.edu>
447
448 * Makefile.in (CC1OBJ): Define in terms of CC.
449 (runtime-info.h): Use.
450
451 Fri April 8 08:21:07 1999 Ovidiu Predescu <ovidiu@cup.hp.com>
452
453 * objc-features.texi: Updated the URL to Boehm's GC page.
454
455 Fri Mar 26 23:41:07 1999 Ovidiu Predescu <ovidiu@cup.hp.com>
456
457 * archive.c (__objc_code_char, __objc_write_char): Explicitly specify
458 the char as being signed (patch from Daniel Jacobowitz
459 <drow@false.org>).
460
461 Wed Mar 24 22:41:28 1999 Mumit Khan <khan@xraylith.wisc.edu>
462
463 * configure.in (AC_PREREQ): Update to 2.13.
464 (AC_EXEEXT): Call to find possible file extension.
465 (compiler_name): Use.
466 * configure: Regenerate.
467
468 Wed Jan 27 02:31:01 1999 Jeffrey A Law (law@cygnus.com)
469
470 * Makefile.in (ALL_CFLAGS): Add -DIN_GCC.
471
472 Tue Jan 5 01:38:53 1999 Jeffrey A Law (law@cygnus.com)
473
474 * configure.in (thread_file): Correct and simplify code to find
475 the thread file.
476 * configure: Rebuilt.
477
478 1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
479
480 * configure.in (compiler_name): Add check to detect if this
481 language's compiler has been built.
482 * configure: Regenerate.
483
484 Mon Nov 23 16:50:28 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
485
486 * configure.in: Use AC_PREREQ(2.12.1).
487
488 Thu Nov 19 20:33:37 1998 Jeffrey A Law (law@cygnus.com)
489
490 * Makefile.in (runtime-info.h): Avoid GNU make extensions.
491
492 Sun Nov 8 17:46:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
493
494 * Makefile.in (INCLUDES): Add -I$(srcdir)/$(MULTISRCTOP)../include.
495
496 Thu Oct 22 14:34:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
497
498 * configure.in: Use AC_CONFIG_AUX_DIR($topsrcdir).
499
500 Sat Oct 17 05:21:31 1998 Ovidiu Predescu <ovidiu@slip.net>
501
502 * objc-features.texi (Top): Changed the email address.
503 * objc-features.texi (Garbage Collection): Use @uref instead of @url.
504
505 Mon Oct 11 21:25:27 1998 Ovidiu Predescu <ovidiu@slip.net>
506
507 * encoding.c: Redefine get_inner_array_type to get the first entry
508 in the structure.
509
510 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
511
512 * encoding.c (objc_skip_type_qualifiers): Handle _C_BYREF.
513 (objc_get_type_qualifiers): Similarly.
514 * objc/encoding.h (_C_BYREF): Define.
515 (_F_BYREF): Define.
516
517 1998-10-07 David S. Miller <davem@pierdol.cobaltmicro.com>
518
519 * objc/sarray.h: Make boffset be an unsigned long when sparc so it
520 works out on 64-bit systems.
521
522 Tue Oct 6 20:32:06 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
523
524 * Makefile.in (INCLUDES): Make it multilib-friendly.
525
526 Fri Oct 2 07:12:14 1998 H.J. Lu (hjl@gnu.org)
527
528 * Makefile.in (INCLUDES): Add -I$(srcdir)/../gcc.
529
530 Thu Oct 1 22:33:03 1998 Robert Lipe <robertl@dgii.com>
531 Jeffrey A Law (law@cygnus.com)
532
533 * Makefile.in (INCLUDES): Reference gcc via $MULTIBUILDTOP.
534 (FLAGS_TO_PASS): Added.
535 (runtime-info.h): Reference cc1ibj via $MULTIBUILDTOP.
536
537 * archive.c: Change config.h to tconfig.h.
538
539 * configure.in: Find gcc's object directory even for multilibs.
540
541 Wed Sep 30 18:17:17 1998 Robert Lipe <robertl@dgii.com>
542
543 * configure.in: Escape ^ in grep string.
544 * configure: Rebuilt.
545
546 Wed Sep 30 09:14:52 1998 Jeffrey A Law (law@cygnus.com)
547
548 * All .h files pushed down into the objc/ subdirectory.
549 * Makefile.in (copy_headers): Corresponding changes.
550 * configure.in (AC_INIT): Corresponding changes.
551 * configure: Rebuilt.
552
553 1998-09-30 Ben Elliston <bje@cygnus.com>
554 Jeff Law <law@cygnus.com>
555
556 * Makefile.in: Rewrite.
557
558 * configure.in: Likewise.
559
560 * configure: Regenerate.
561
562 * All .c files. Remove "objc" prefix when including objc header
563 files. Include tconfig.h, not ../tconfig.h.
564
565 Mon Sep 21 23:27:10 1998 Ovidiu Predescu <ovidiu@slip.net>
566
567 * encoding.c (TREE_TYPE, ARRAY_TYPE): Define.
568 (get_inner_array_type): Define.
569
570 1998-09-21 Ben Elliston <bje@cygnus.com>
571
572 * New directory. Moved files from ../gcc/objc.