1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
|
/* Target definitions for Darwin (Mac OS X) systems.
Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* The definitions in this file are common to all processor types
running Darwin, which is the kernel for Mac OS X. Darwin is
basically a BSD user layer laid over a Mach kernel, then evolved
for many years (at NeXT) in parallel with other Unix systems. So
while the runtime is a somewhat idiosyncratic Mach-based thing,
other definitions look like they would for a BSD variant. */
/* Although NeXT ran on many different architectures, as of Jan 2001
the only supported Darwin targets are PowerPC and x86. */
/* Technically, STANDARD_EXEC_PREFIX should be /usr/libexec/, but in
practice this makes it hard to install new compilers elsewhere, so
leave it undefined and expect system builders to set configure args
correctly. */
/* One of Darwin's NeXT legacies is the Mach-O format, which is partly
like a.out and partly like COFF, with additional features like
multi-architecture binary support. */
#define OBJECT_FORMAT_MACHO
/* Suppress g++ attempt to link in the math library automatically.
(Some Darwin versions have a libm, but they seem to cause problems
for C++ executables.) */
#define MATH_LIBRARY ""
/* We have atexit. */
#define HAVE_ATEXIT
/* Define an empty body for the function do_global_dtors() in libgcc2.c. */
#define DO_GLOBAL_DTORS_BODY
/* The string value for __SIZE_TYPE__. */
#ifndef SIZE_TYPE
#define SIZE_TYPE "long unsigned int"
#endif
/* Type used for ptrdiff_t, as a string used in a declaration. */
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
/* wchar_t is int. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
/* Default to using the NeXT-style runtime, since that's what is
pre-installed on Darwin systems. */
#define NEXT_OBJC_RUNTIME
/* Don't default to pcc-struct-return, because gcc is the only compiler, and
we want to retain compatibility with older gcc versions. */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0
/* This table intercepts weirdo options whose names would interfere
with normal driver conventions, and either translates them into
standardly-named options, or adds a 'Z' so that they can get to
specs processing without interference.
Do not expand a linker option to "-Xlinker -<option>", since that
forfeits the ability to control via spec strings later. However,
as a special exception, do this translation with -filelist, because
otherwise the driver will think there are no input files and quit.
(The alternative would be to hack the driver to recognize -filelist
specially, but it's simpler to use the translation table.)
Note that an option name with a prefix that matches another option
name, that also takes an argument, needs to be modified so the
prefix is different, otherwise a '*' after the shorter option will
match with the longer one. */
#define TARGET_OPTION_TRANSLATE_TABLE \
{ "-all_load", "-Zall_load" }, \
{ "-allowable_client", "-Zallowable_client" }, \
{ "-arch_errors_fatal", "-Zarch_errors_fatal" }, \
{ "-bind_at_load", "-Zbind_at_load" }, \
{ "-bundle", "-Zbundle" }, \
{ "-bundle_loader", "-Zbundle_loader" }, \
{ "-weak_reference_mismatches", "-Zweak_reference_mismatches" }, \
{ "-dependency-file", "-MF" }, \
{ "-dylib_file", "-Zdylib_file" }, \
{ "-dynamic", "-Zdynamic" }, \
{ "-dynamiclib", "-Zdynamiclib" }, \
{ "-exported_symbols_list", "-Zexported_symbols_list" }, \
{ "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
{ "-filelist", "-Xlinker -filelist -Xlinker" }, \
{ "-flat_namespace", "-Zflat_namespace" }, \
{ "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" }, \
{ "-force_flat_namespace", "-Zforce_flat_namespace" }, \
{ "-image_base", "-Zimage_base" }, \
{ "-init", "-Zinit" }, \
{ "-install_name", "-Zinstall_name" }, \
{ "-multiply_defined_unused", "-Zmultiplydefinedunused" }, \
{ "-multiply_defined", "-Zmultiply_defined" }, \
{ "-multi_module", "-Zmulti_module" }, \
{ "-static", "-static -Wa,-static" }, \
{ "-single_module", "-Zsingle_module" }, \
{ "-unexported_symbols_list", "-Zunexported_symbols_list" }
/* These compiler options take n arguments. */
#undef WORD_SWITCH_TAKES_ARG
#define WORD_SWITCH_TAKES_ARG(STR) \
(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 : \
!strcmp (STR, "Zallowable_client") ? 1 : \
!strcmp (STR, "arch") ? 1 : \
!strcmp (STR, "arch_only") ? 1 : \
!strcmp (STR, "Zbundle_loader") ? 1 : \
!strcmp (STR, "client_name") ? 1 : \
!strcmp (STR, "compatibility_version") ? 1 : \
!strcmp (STR, "current_version") ? 1 : \
!strcmp (STR, "Zdylib_file") ? 1 : \
!strcmp (STR, "Zexported_symbols_list") ? 1 : \
!strcmp (STR, "Zimage_base") ? 1 : \
!strcmp (STR, "Zinit") ? 1 : \
!strcmp (STR, "Zinstall_name") ? 1 : \
!strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
!strcmp (STR, "Zmultiply_defined") ? 1 : \
!strcmp (STR, "precomp-trustfile") ? 1 : \
!strcmp (STR, "read_only_relocs") ? 1 : \
!strcmp (STR, "sectcreate") ? 3 : \
!strcmp (STR, "sectorder") ? 3 : \
!strcmp (STR, "Zseg_addr_table_filename") ?1 :\
!strcmp (STR, "seg1addr") ? 1 : \
!strcmp (STR, "segprot") ? 3 : \
!strcmp (STR, "seg_addr_table") ? 1 : \
!strcmp (STR, "sub_library") ? 1 : \
!strcmp (STR, "sub_umbrella") ? 1 : \
!strcmp (STR, "umbrella") ? 1 : \
!strcmp (STR, "undefined") ? 1 : \
!strcmp (STR, "Zunexported_symbols_list") ? 1 : \
!strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
!strcmp (STR, "pagezero_size") ? 1 : \
!strcmp (STR, "segs_read_only_addr") ? 1 : \
!strcmp (STR, "segs_read_write_addr") ? 1 : \
!strcmp (STR, "sectalign") ? 3 : \
!strcmp (STR, "sectobjectsymbols") ? 2 : \
!strcmp (STR, "segcreate") ? 3 : \
!strcmp (STR, "dylinker_install_name") ? 1 : \
0)
/* Machine dependent cpp options. */
#undef CPP_SPEC
#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}"
/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
precomp, libtool, and fat build additions. Also we
don't specify a second %G after %L because libSystem is
self-contained and doesn't need to link against libgcc.a. */
/* In general, random Darwin linker flags should go into LINK_SPEC
instead of LINK_COMMAND_SPEC. The command spec is better for
specifying the handling of options understood by generic Unix
linkers, and for positional arguments like libraries. */
#define LINK_COMMAND_SPEC "\
%{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
%{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
%l %X %{d} %{s} %{t} %{Z} \
%{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
%{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
%{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
%{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov} \
%{!nostdlib:%{!nodefaultlibs:%G %L}} \
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} \
%{!--help:%{!no-c++filt|c++filt:| c++filt3 }} }}}}}}}}"
/* Please keep the random linker options in alphabetical order (modulo
'Z' and 'no' prefixes). Options that can only go to one of libtool
or ld must be listed twice, under both !Zdynamiclib and
Zdynamiclib, with one of the cases reporting an error. */
/* Note that options taking arguments may appear multiple times on a
command line with different arguments each time, so put a * after
their names so all of them get passed. */
#define LINK_SPEC \
"%{static}%{!static:-dynamic} \
%{!Zdynamiclib: \
%{Zbundle:-bundle} \
%{Zbundle_loader*:-bundle_loader %*} \
%{client_name*} \
%{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
} \
%{current_version*:%e-current_version only allowed with -dynamiclib} \
%{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
%{Zforce_flat_namespace:-force_flat_namespace} \
%{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
%{keep_private_externs} \
%{private_bundle} \
} \
%{Zdynamiclib: \
%{Zbundle:%e-bundle not allowed with -dynamiclib} \
%{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
%{client_name*:%e-client_name not allowed with -dynamiclib} \
%{compatibility_version*} \
%{current_version*} \
%{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
%{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
%{Zinstall_name*:-install_name %*} \
%{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
%{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
} \
%{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
%{Zallowable_client*:-allowable_client %*} \
%{Zbind_at_load:-bind_at_load} \
%{Zarch_errors_fatal:-arch_errors_fatal} \
%{Zdylib_file*:-dylib_file %*} \
%{Zdynamic:-dynamic}\
%{Zexported_symbols_list*:-exported_symbols_list %*} \
%{Zflat_namespace:-flat_namespace} \
%{headerpad_max_install_names*} \
%{Zimage_base*:-image_base %*} \
%{Zinit*:-init %*} \
%{nomultidefs} \
%{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
%{Zmultiply_defined*:-multiply_defined %*} \
%{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
%{prebind} %{noprebind} %{prebind_all_twolevel_modules} \
%{read_only_relocs} \
%{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} %{seg_addr_table*} \
%{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
%{sub_library*} %{sub_umbrella*} \
%{twolevel_namespace} %{twolevel_namespace_hints} \
%{umbrella*} \
%{undefined*} \
%{Zunexported_symbols_list*:-unexported_symbols_list %*} \
%{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
%{X} \
%{y*} \
%{w} \
%{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
%{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
%{whatsloaded} %{dylinker_install_name*} \
%{dylinker} %{Mach} "
/* Machine dependent libraries. */
#undef LIB_SPEC
#define LIB_SPEC "%{!static:-lSystem}"
/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
%{!Zbundle:%{pg:%{static:-lgcrt0.o} \
%{!static:%{object:-lgcrt0.o} \
%{!object:%{preload:-lgcrt0.o} \
%{!preload:-lgcrt1.o -lcrt2.o}}}} \
%{!pg:%{static:-lcrt0.o} \
%{!static:%{object:-lcrt0.o} \
%{!object:%{preload:-lcrt0.o} \
%{!preload:-lcrt1.o -lcrt2.o}}}}}}"
/* The native Darwin linker doesn't necessarily place files in the order
that they're specified on the link line. Thus, it is pointless
to put anything in ENDFILE_SPEC. */
/* #define ENDFILE_SPEC "" */
#undef DOLLARS_IN_IDENTIFIERS
#define DOLLARS_IN_IDENTIFIERS 2
/* We use Dbx symbol format. */
#define DBX_DEBUGGING_INFO 1
/* When generating stabs debugging, use N_BINCL entries. */
#define DBX_USE_BINCL
/* There is no limit to the length of stabs strings. */
#define DBX_CONTIN_LENGTH 0
/* gdb needs a null N_SO at the end of each file for scattered loading. */
#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
do { text_section (); \
fprintf (FILE, \
"\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO); \
} while (0)
/* Our profiling scheme doesn't LP labels and counter words. */
#define NO_PROFILE_COUNTERS
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP
#undef INVOKE__main
#define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
#define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
/* Always prefix with an underscore. */
#define USER_LABEL_PREFIX "_"
/* Don't output a .file directive. That is only used by the assembler for
error reporting. */
#undef ASM_FILE_START
#define ASM_FILE_START(FILE)
#undef ASM_FILE_END
#define ASM_FILE_END(FILE) \
do { \
machopic_finish (asm_out_file); \
if (strcmp (lang_hooks.name, "GNU C++") == 0) \
{ \
constructor_section (); \
destructor_section (); \
ASM_OUTPUT_ALIGN (FILE, 1); \
} \
} while (0)
#define ASM_OUTPUT_SKIP(FILE,SIZE) \
fprintf (FILE, "\t.space %d\n", SIZE)
/* Give ObjC methods pretty symbol names. */
#undef OBJC_GEN_METHOD_LABEL
#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
do { if (CAT_NAME) \
sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
(CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
else \
sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
(CLASS_NAME), (SEL_NAME)); \
} while (0)
/* The RTTI data (e.g., __ti4name) is common and public (and static),
but it does need to be referenced via indirect PIC data pointers.
The machopic_define_name calls are telling the machopic subsystem
that the name *is* defined in this module, so it doesn't need to
make them indirect. */
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do { \
const char *xname = NAME; \
if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
machopic_define_name (xname); \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
(* targetm.encode_section_info) (DECL, false); \
ASM_OUTPUT_LABEL (FILE, xname); \
} while (0)
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do { \
const char *xname = NAME; \
if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
machopic_define_name (xname); \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
(* targetm.encode_section_info) (DECL, false); \
ASM_OUTPUT_LABEL (FILE, xname); \
/* Avoid generating stubs for functions we've just defined by \
outputting any required stub name label now. */ \
machopic_output_possible_stub_label (FILE, xname); \
} while (0)
/* Wrap new method names in quotes so the assembler doesn't gag.
Make Objective-C internal symbols local. */
#undef ASM_OUTPUT_LABELREF
#define ASM_OUTPUT_LABELREF(FILE,NAME) \
do { \
const char *xname = darwin_strip_name_encoding (NAME); \
if (xname[0] == '&' || xname[0] == '*') \
{ \
int len = strlen (xname); \
if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
machopic_validate_stub_or_non_lazy_ptr (xname, 0); \
fputs (&xname[1], FILE); \
} \
else if (xname[0] == '+' || xname[0] == '-') \
fprintf (FILE, "\"%s\"", xname); \
else if (!strncmp (xname, "_OBJC_", 6)) \
fprintf (FILE, "L%s", xname); \
else if (!strncmp (xname, ".objc_class_name_", 17)) \
fprintf (FILE, "%s", xname); \
else \
fprintf (FILE, "_%s", xname); \
} while (0)
/* Output before executable code. */
#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP ".text"
/* Output before writable data. */
#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP ".data"
#undef ALIGN_ASM_OP
#define ALIGN_ASM_OP ".align"
#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
if ((LOG) != 0) \
fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
/* Ensure correct alignment of bss data. */
#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
do { \
fputs (".lcomm ", (FILE)); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), ",%u,%u\n", (SIZE), \
floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
if ((DECL) && ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL))) \
(* targetm.encode_section_info) (DECL, false); \
if ((DECL) && ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL))) \
machopic_define_name (NAME); \
} while (0)
/* The maximum alignment which the object file format can support.
For Mach-O, this is 2^15. */
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT 0x8000
/* Create new Mach-O sections. */
#undef SECTION_FUNCTION
#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
extern void FUNCTION PARAMS ((void)); \
void \
FUNCTION () \
{ \
if (in_section != SECTION) \
{ \
if (OBJC) \
objc_section_init (); \
data_section (); \
if (asm_out_file) \
fprintf (asm_out_file, "%s\n", DIRECTIVE); \
in_section = SECTION; \
} \
} \
/* Darwin uses many types of special sections. */
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS \
in_const, in_const_data, in_cstring, in_literal4, in_literal8, \
in_constructor, in_destructor, in_mod_init, in_mod_term, \
in_objc_class, in_objc_meta_class, in_objc_category, \
in_objc_class_vars, in_objc_instance_vars, \
in_objc_cls_meth, in_objc_inst_meth, \
in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
in_objc_selector_refs, \
in_objc_selector_fixup, \
in_objc_symbols, in_objc_module_info, \
in_objc_protocol, in_objc_string_object, \
in_objc_constant_string_object, \
in_objc_class_names, in_objc_meth_var_names, \
in_objc_meth_var_types, in_objc_cls_refs, \
in_machopic_nl_symbol_ptr, \
in_machopic_lazy_symbol_ptr, \
in_machopic_symbol_stub, \
in_machopic_symbol_stub1, \
in_machopic_picsymbol_stub, \
in_machopic_picsymbol_stub1, \
in_darwin_exception, in_darwin_eh_frame, \
num_sections
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
static void objc_section_init PARAMS ((void)); \
SECTION_FUNCTION (const_section, \
in_const, \
".const", 0) \
SECTION_FUNCTION (const_data_section, \
in_const_data, \
".const_data", 0) \
SECTION_FUNCTION (cstring_section, \
in_cstring, \
".cstring", 0) \
SECTION_FUNCTION (literal4_section, \
in_literal4, \
".literal4", 0) \
SECTION_FUNCTION (literal8_section, \
in_literal8, \
".literal8", 0) \
SECTION_FUNCTION (constructor_section, \
in_constructor, \
".constructor", 0) \
SECTION_FUNCTION (mod_init_section, \
in_mod_init, \
".mod_init_func", 0) \
SECTION_FUNCTION (mod_term_section, \
in_mod_term, \
".mod_term_func", 0) \
SECTION_FUNCTION (destructor_section, \
in_destructor, \
".destructor", 0) \
SECTION_FUNCTION (objc_class_section, \
in_objc_class, \
".objc_class", 1) \
SECTION_FUNCTION (objc_meta_class_section, \
in_objc_meta_class, \
".objc_meta_class", 1) \
SECTION_FUNCTION (objc_category_section, \
in_objc_category, \
".objc_category", 1) \
SECTION_FUNCTION (objc_class_vars_section, \
in_objc_class_vars, \
".objc_class_vars", 1) \
SECTION_FUNCTION (objc_instance_vars_section, \
in_objc_instance_vars, \
".objc_instance_vars", 1) \
SECTION_FUNCTION (objc_cls_meth_section, \
in_objc_cls_meth, \
".objc_cls_meth", 1) \
SECTION_FUNCTION (objc_inst_meth_section, \
in_objc_inst_meth, \
".objc_inst_meth", 1) \
SECTION_FUNCTION (objc_cat_cls_meth_section, \
in_objc_cat_cls_meth, \
".objc_cat_cls_meth", 1) \
SECTION_FUNCTION (objc_cat_inst_meth_section, \
in_objc_cat_inst_meth, \
".objc_cat_inst_meth", 1) \
SECTION_FUNCTION (objc_selector_refs_section, \
in_objc_selector_refs, \
".objc_message_refs", 1) \
SECTION_FUNCTION (objc_selector_fixup_section, \
in_objc_selector_fixup, \
".section __OBJC, __sel_fixup", 1) \
SECTION_FUNCTION (objc_symbols_section, \
in_objc_symbols, \
".objc_symbols", 1) \
SECTION_FUNCTION (objc_module_info_section, \
in_objc_module_info, \
".objc_module_info", 1) \
SECTION_FUNCTION (objc_protocol_section, \
in_objc_protocol, \
".objc_protocol", 1) \
SECTION_FUNCTION (objc_string_object_section, \
in_objc_string_object, \
".objc_string_object", 1) \
SECTION_FUNCTION (objc_constant_string_object_section, \
in_objc_constant_string_object, \
".section __OBJC, __cstring_object", 1) \
SECTION_FUNCTION (objc_class_names_section, \
in_objc_class_names, \
".objc_class_names", 1) \
SECTION_FUNCTION (objc_meth_var_names_section, \
in_objc_meth_var_names, \
".objc_meth_var_names", 1) \
SECTION_FUNCTION (objc_meth_var_types_section, \
in_objc_meth_var_types, \
".objc_meth_var_types", 1) \
SECTION_FUNCTION (objc_cls_refs_section, \
in_objc_cls_refs, \
".objc_cls_refs", 1) \
\
SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
in_machopic_lazy_symbol_ptr, \
".lazy_symbol_pointer", 0) \
SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
in_machopic_nl_symbol_ptr, \
".non_lazy_symbol_pointer", 0) \
SECTION_FUNCTION (machopic_symbol_stub_section, \
in_machopic_symbol_stub, \
".symbol_stub", 0) \
SECTION_FUNCTION (machopic_symbol_stub1_section, \
in_machopic_symbol_stub1, \
".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
SECTION_FUNCTION (machopic_picsymbol_stub_section, \
in_machopic_picsymbol_stub, \
".picsymbol_stub", 0) \
SECTION_FUNCTION (machopic_picsymbol_stub1_section, \
in_machopic_picsymbol_stub1, \
".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
SECTION_FUNCTION (darwin_exception_section, \
in_darwin_exception, \
".section __DATA,__gcc_except_tab", 0) \
SECTION_FUNCTION (darwin_eh_frame_section, \
in_darwin_eh_frame, \
".section __TEXT,__eh_frame", 0) \
\
static void \
objc_section_init () \
{ \
static int been_here = 0; \
\
if (been_here == 0) \
{ \
been_here = 1; \
/* written, cold -> hot */ \
objc_cat_cls_meth_section (); \
objc_cat_inst_meth_section (); \
objc_string_object_section (); \
objc_constant_string_object_section (); \
objc_selector_refs_section (); \
objc_selector_fixup_section (); \
objc_cls_refs_section (); \
objc_class_section (); \
objc_meta_class_section (); \
/* shared, hot -> cold */ \
objc_cls_meth_section (); \
objc_inst_meth_section (); \
objc_protocol_section (); \
objc_class_names_section (); \
objc_meth_var_types_section (); \
objc_meth_var_names_section (); \
objc_category_section (); \
objc_class_vars_section (); \
objc_instance_vars_section (); \
objc_module_info_section (); \
objc_symbols_section (); \
} \
}
#define READONLY_DATA_SECTION const_section
#undef TARGET_ASM_SELECT_SECTION
#define TARGET_ASM_SELECT_SECTION machopic_select_section
#undef TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
do { \
if (FILE) { \
if (flag_pic) \
fprintf (FILE, "\t.lazy_reference "); \
else \
fprintf (FILE, "\t.reference "); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} \
} while (0)
#define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \
do { \
if (FILE) { \
fprintf (FILE, "\t"); \
assemble_name (FILE, NAME); \
fprintf (FILE, "=0\n"); \
(*targetm.asm_out.globalize_label) (FILE, NAME); \
} \
} while (0)
/* Globalizing directive for a label. */
#define GLOBAL_ASM_OP ".globl "
#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
/* Since we have a separate readonly data section, define this so that
jump tables end up in text rather than data. */
#ifndef JUMP_TABLES_IN_TEXT_SECTION
#define JUMP_TABLES_IN_TEXT_SECTION 1
#endif
/* Symbolic names for various things we might know about a symbol. */
enum machopic_addr_class {
MACHOPIC_UNDEFINED,
MACHOPIC_DEFINED_DATA,
MACHOPIC_UNDEFINED_DATA,
MACHOPIC_DEFINED_FUNCTION,
MACHOPIC_UNDEFINED_FUNCTION
};
/* Macros defining the various PIC cases. */
#define MACHOPIC_INDIRECT (flag_pic)
#define MACHOPIC_JUST_INDIRECT (flag_pic == 1)
#define MACHOPIC_PURE (flag_pic == 2)
#undef TARGET_ENCODE_SECTION_INFO
#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
#undef TARGET_STRIP_NAME_ENCODING
#define TARGET_STRIP_NAME_ENCODING darwin_strip_name_encoding
#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
do { \
const char *const stub_ = (STUB); \
char *buffer_ = (BUF); \
strcpy (buffer_, stub_); \
if (stub_[0] == '"') \
{ \
strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \
} \
else \
{ \
strcpy (buffer_ + (STUB_LENGTH), "_binder"); \
} \
} while (0)
#define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
do { \
const char *const symbol_ = (SYMBOL); \
char *buffer_ = (BUF); \
if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
{ \
sprintf (buffer_, "\"%s\"", symbol_); \
} \
else \
{ \
strcpy (buffer_, symbol_); \
} \
} while (0)
/* Given a symbol name string, create the lazy pointer version
of the symbol name. */
#define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
do { \
const char *symbol_ = darwin_strip_name_encoding (SYMBOL); \
char *buffer_ = (BUF); \
if (symbol_[0] == '"') \
{ \
strcpy (buffer_, "\"L"); \
strcpy (buffer_ + 2, symbol_ + 1); \
strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
} \
else if (name_needs_quotes (symbol_)) \
{ \
strcpy (buffer_, "\"L"); \
strcpy (buffer_ + 2, symbol_); \
strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \
} \
else \
{ \
strcpy (buffer_, "L"); \
strcpy (buffer_ + 1, symbol_); \
strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \
} \
} while (0)
#define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
#define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
#undef ASM_PREFERRED_EH_DATA_FORMAT
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
(((CODE) == 2 && (GLOBAL) == 1) \
? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
#define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
#define DARWIN_REGISTER_TARGET_PRAGMAS() \
do { \
c_register_pragma (0, "mark", darwin_pragma_ignore); \
c_register_pragma (0, "options", darwin_pragma_options); \
c_register_pragma (0, "segment", darwin_pragma_ignore); \
c_register_pragma (0, "unused", darwin_pragma_unused); \
} while (0)
#undef ASM_APP_ON
#define ASM_APP_ON ""
#undef ASM_APP_OFF
#define ASM_APP_OFF ""
|