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[netbsd-mini2440.git] / gnu / dist / gcc4 / gcc / config / darwin.h
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1 /* Target definitions for Darwin (Mac OS X) systems.
2 Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,
3 2005
4 Free Software Foundation, Inc.
5 Contributed by Apple Computer Inc.
6
7 This file is part of GCC.
8
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
13
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING. If not, write to
21 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
23
24 #ifndef CONFIG_DARWIN_H
25 #define CONFIG_DARWIN_H
26
27 /* The definitions in this file are common to all processor types
28 running Darwin, which is the kernel for Mac OS X. Darwin is
29 basically a BSD user layer laid over a Mach kernel, then evolved
30 for many years (at NeXT) in parallel with other Unix systems. So
31 while the runtime is a somewhat idiosyncratic Mach-based thing,
32 other definitions look like they would for a BSD variant. */
33
34 /* Although NeXT ran on many different architectures, as of Jan 2001
35 the only supported Darwin targets are PowerPC and x86. */
36
37 /* One of Darwin's NeXT legacies is the Mach-O format, which is partly
38 like a.out and partly like COFF, with additional features like
39 multi-architecture binary support. */
40
41 #define OBJECT_FORMAT_MACHO
42
43 /* Suppress g++ attempt to link in the math library automatically. */
44 #define MATH_LIBRARY ""
45
46 /* We have atexit. */
47
48 #define HAVE_ATEXIT
49
50 /* Define an empty body for the function do_global_dtors() in libgcc2.c. */
51
52 #define DO_GLOBAL_DTORS_BODY
53
54 /* The string value for __SIZE_TYPE__. */
55
56 #ifndef SIZE_TYPE
57 #define SIZE_TYPE "long unsigned int"
58 #endif
59
60 /* Type used for ptrdiff_t, as a string used in a declaration. */
61
62 #undef PTRDIFF_TYPE
63 #define PTRDIFF_TYPE "int"
64
65 /* wchar_t is int. */
66
67 #undef WCHAR_TYPE
68 #define WCHAR_TYPE "int"
69 #undef WCHAR_TYPE_SIZE
70 #define WCHAR_TYPE_SIZE 32
71
72 /* Default to using the NeXT-style runtime, since that's what is
73 pre-installed on Darwin systems. */
74
75 #define NEXT_OBJC_RUNTIME
76
77 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
78 we want to retain compatibility with older gcc versions. */
79
80 #undef DEFAULT_PCC_STRUCT_RETURN
81 #define DEFAULT_PCC_STRUCT_RETURN 0
82
83 /* This table intercepts weirdo options whose names would interfere
84 with normal driver conventions, and either translates them into
85 standardly-named options, or adds a 'Z' so that they can get to
86 specs processing without interference.
87
88 Do not expand a linker option to "-Xlinker -<option>", since that
89 forfeits the ability to control via spec strings later. However,
90 as a special exception, do this translation with -filelist, because
91 otherwise the driver will think there are no input files and quit.
92 (The alternative would be to hack the driver to recognize -filelist
93 specially, but it's simpler to use the translation table.)
94
95 Note that an option name with a prefix that matches another option
96 name, that also takes an argument, needs to be modified so the
97 prefix is different, otherwise a '*' after the shorter option will
98 match with the longer one.
99
100 The SUBTARGET_OPTION_TRANSLATE_TABLE macro, which _must_ be defined
101 in gcc/config/{i386,rs6000}/darwin.h, should contain any additional
102 command-line option translations specific to the particular target
103 architecture. */
104
105 #define TARGET_OPTION_TRANSLATE_TABLE \
106 { "-all_load", "-Zall_load" }, \
107 { "-allowable_client", "-Zallowable_client" }, \
108 { "-arch_errors_fatal", "-Zarch_errors_fatal" }, \
109 { "-bind_at_load", "-Zbind_at_load" }, \
110 { "-bundle", "-Zbundle" }, \
111 { "-bundle_loader", "-Zbundle_loader" }, \
112 { "-weak_reference_mismatches", "-Zweak_reference_mismatches" }, \
113 { "-dead_strip", "-Zdead_strip" }, \
114 { "-no_dead_strip_inits_and_terms", "-Zno_dead_strip_inits_and_terms" }, \
115 { "-dependency-file", "-MF" }, \
116 { "-dylib_file", "-Zdylib_file" }, \
117 { "-dynamic", "-Zdynamic" }, \
118 { "-dynamiclib", "-Zdynamiclib" }, \
119 { "-exported_symbols_list", "-Zexported_symbols_list" }, \
120 { "-gfull", "-g -fno-eliminate-unused-debug-symbols" }, \
121 { "-gused", "-g -feliminate-unused-debug-symbols" }, \
122 { "-segaddr", "-Zsegaddr" }, \
123 { "-segs_read_only_addr", "-Zsegs_read_only_addr" }, \
124 { "-segs_read_write_addr", "-Zsegs_read_write_addr" }, \
125 { "-seg_addr_table", "-Zseg_addr_table" }, \
126 { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
127 { "-filelist", "-Xlinker -filelist -Xlinker" }, \
128 { "-framework", "-Xlinker -framework -Xlinker" }, \
129 { "-flat_namespace", "-Zflat_namespace" }, \
130 { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" }, \
131 { "-force_flat_namespace", "-Zforce_flat_namespace" }, \
132 { "-image_base", "-Zimage_base" }, \
133 { "-init", "-Zinit" }, \
134 { "-install_name", "-Zinstall_name" }, \
135 { "-multiply_defined_unused", "-Zmultiplydefinedunused" }, \
136 { "-multiply_defined", "-Zmultiply_defined" }, \
137 { "-multi_module", "-Zmulti_module" }, \
138 { "-static", "-static -Wa,-static" }, \
139 { "-single_module", "-Zsingle_module" }, \
140 { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
141 SUBTARGET_OPTION_TRANSLATE_TABLE
142
143 #define SUBTARGET_OS_CPP_BUILTINS() \
144 do \
145 { \
146 if (flag_pic) \
147 builtin_define ("__PIC__"); \
148 } \
149 while (0)
150
151 /* These compiler options take n arguments. */
152
153 #undef WORD_SWITCH_TAKES_ARG
154 #define WORD_SWITCH_TAKES_ARG(STR) \
155 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 : \
156 !strcmp (STR, "Zallowable_client") ? 1 : \
157 !strcmp (STR, "arch") ? 1 : \
158 !strcmp (STR, "arch_only") ? 1 : \
159 !strcmp (STR, "Zbundle_loader") ? 1 : \
160 !strcmp (STR, "client_name") ? 1 : \
161 !strcmp (STR, "compatibility_version") ? 1 : \
162 !strcmp (STR, "current_version") ? 1 : \
163 !strcmp (STR, "Zdylib_file") ? 1 : \
164 !strcmp (STR, "Zexported_symbols_list") ? 1 : \
165 !strcmp (STR, "Zimage_base") ? 1 : \
166 !strcmp (STR, "Zinit") ? 1 : \
167 !strcmp (STR, "Zinstall_name") ? 1 : \
168 !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
169 !strcmp (STR, "Zmultiply_defined") ? 1 : \
170 !strcmp (STR, "precomp-trustfile") ? 1 : \
171 !strcmp (STR, "read_only_relocs") ? 1 : \
172 !strcmp (STR, "sectcreate") ? 3 : \
173 !strcmp (STR, "sectorder") ? 3 : \
174 !strcmp (STR, "Zsegaddr") ? 2 : \
175 !strcmp (STR, "Zsegs_read_only_addr") ? 1 : \
176 !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
177 !strcmp (STR, "Zseg_addr_table") ? 1 : \
178 !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
179 !strcmp (STR, "seg1addr") ? 1 : \
180 !strcmp (STR, "segprot") ? 3 : \
181 !strcmp (STR, "sub_library") ? 1 : \
182 !strcmp (STR, "sub_umbrella") ? 1 : \
183 !strcmp (STR, "umbrella") ? 1 : \
184 !strcmp (STR, "undefined") ? 1 : \
185 !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
186 !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
187 !strcmp (STR, "pagezero_size") ? 1 : \
188 !strcmp (STR, "segs_read_only_addr") ? 1 : \
189 !strcmp (STR, "segs_read_write_addr") ? 1 : \
190 !strcmp (STR, "sectalign") ? 3 : \
191 !strcmp (STR, "sectobjectsymbols") ? 2 : \
192 !strcmp (STR, "segcreate") ? 3 : \
193 !strcmp (STR, "dylinker_install_name") ? 1 : \
194 0)
195
196 /* Machine dependent cpp options. Don't add more options here, add
197 them to darwin_cpp_builtins in darwin-c.c. */
198
199 #undef CPP_SPEC
200 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}"
201
202 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
203 precomp, libtool, and fat build additions. Also we
204 don't specify a second %G after %L because libSystem is
205 self-contained and doesn't need to link against libgcc.a. */
206 /* In general, random Darwin linker flags should go into LINK_SPEC
207 instead of LINK_COMMAND_SPEC. The command spec is better for
208 specifying the handling of options understood by generic Unix
209 linkers, and for positional arguments like libraries. */
210 #define LINK_COMMAND_SPEC "\
211 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
212 %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
213 %l %X %{d} %{s} %{t} %{Z} \
214 %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
215 %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
216 %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
217 %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
218 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %G %L}} \
219 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
220
221 /* Please keep the random linker options in alphabetical order (modulo
222 'Z' and 'no' prefixes). Options that can only go to one of libtool
223 or ld must be listed twice, under both !Zdynamiclib and
224 Zdynamiclib, with one of the cases reporting an error. */
225 /* Note that options taking arguments may appear multiple times on a
226 command line with different arguments each time, so put a * after
227 their names so all of them get passed. */
228 #define LINK_SPEC \
229 "%{static}%{!static:-dynamic} \
230 %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}\
231 %{!Zdynamiclib: \
232 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \
233 %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \
234 %{Zbundle:-bundle} \
235 %{Zbundle_loader*:-bundle_loader %*} \
236 %{client_name*} \
237 %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
238 } \
239 %{current_version*:%e-current_version only allowed with -dynamiclib} \
240 %{Zforce_flat_namespace:-force_flat_namespace} \
241 %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
242 %{keep_private_externs} \
243 %{private_bundle} \
244 } \
245 %{Zdynamiclib: \
246 %{Zbundle:%e-bundle not allowed with -dynamiclib} \
247 %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
248 %{client_name*:%e-client_name not allowed with -dynamiclib} \
249 %{compatibility_version*} \
250 %{current_version*} \
251 %{Zforce_cpusubtype_ALL:-arch_only %(darwin_arch)} \
252 %{!Zforce_cpusubtype_ALL: -arch_only %(darwin_subarch)} \
253 %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
254 %{Zinstall_name*:-install_name %*} \
255 %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
256 %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
257 } \
258 %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
259 %{Zallowable_client*:-allowable_client %*} \
260 %{Zbind_at_load:-bind_at_load} \
261 %{Zarch_errors_fatal:-arch_errors_fatal} \
262 %{Zdead_strip:-dead_strip} \
263 %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
264 %{Zdylib_file*:-dylib_file %*} \
265 %{Zdynamic:-dynamic}\
266 %{Zexported_symbols_list*:-exported_symbols_list %*} \
267 %{Zflat_namespace:-flat_namespace} \
268 %{headerpad_max_install_names*} \
269 %{Zimage_base*:-image_base %*} \
270 %{Zinit*:-init %*} \
271 %{mmacosx-version-min=*:-macosx_version_min %*} \
272 %{nomultidefs} \
273 %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
274 %{Zmultiply_defined*:-multiply_defined %*} \
275 %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
276 %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
277 %{read_only_relocs} \
278 %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
279 %{Zsegaddr*:-segaddr %*} \
280 %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
281 %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
282 %{Zseg_addr_table*: -seg_addr_table %*} \
283 %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
284 %{sub_library*} %{sub_umbrella*} \
285 %{isysroot*:-syslibroot %*} \
286 %{twolevel_namespace} %{twolevel_namespace_hints} \
287 %{umbrella*} \
288 %{undefined*} \
289 %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
290 %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
291 %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \
292 %{X} \
293 %{y*} \
294 %{w} \
295 %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
296 %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
297 %{whatsloaded} %{dylinker_install_name*} \
298 %{dylinker} %{Mach} "
299
300
301 /* Machine dependent libraries. */
302
303 #define LIB_SPEC "%{!static:-lSystem}"
304
305 /* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib
306 libraries to link against, and by not linking against libgcc_s on
307 earlier-than-10.3.9.
308
309 Note that by default, -lgcc_eh is not linked against! This is
310 because in a future version of Darwin the EH frame information may
311 be in a new format, or the fallback routine might be changed; if
312 you want to explicitly link against the static version of those
313 routines, because you know you don't need to unwind through system
314 libraries, you need to explicitly say -static-libgcc.
315
316 If it is linked against, it has to be before -lgcc, because it may
317 need symbols from -lgcc. */
318 #undef REAL_LIBGCC_SPEC
319 #define REAL_LIBGCC_SPEC \
320 "%{static-libgcc|static: -lgcc_eh -lgcc; \
321 shared-libgcc|fexceptions: \
322 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \
323 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
324 -lgcc; \
325 :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \
326 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
327 -lgcc}"
328
329 /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
330
331 #undef STARTFILE_SPEC
332 #define STARTFILE_SPEC \
333 "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
334 %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
335 %{!static:%{object:-lgcrt0.o} \
336 %{!object:%{preload:-lgcrt0.o} \
337 %{!preload:-lgcrt1.o %(darwin_crt2)}}}} \
338 %{!pg:%{static:-lcrt0.o} \
339 %{!static:%{object:-lcrt0.o} \
340 %{!object:%{preload:-lcrt0.o} \
341 %{!preload:-lcrt1.o %(darwin_crt2)}}}}}}"
342
343 /* The native Darwin linker doesn't necessarily place files in the order
344 that they're specified on the link line. Thus, it is pointless
345 to put anything in ENDFILE_SPEC. */
346 /* #define ENDFILE_SPEC "" */
347
348 /* Default Darwin ASM_SPEC, very simple. */
349 #define ASM_SPEC "-arch %(darwin_arch) \
350 %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL}"
351
352 /* We use Dbx symbol format. */
353
354 #define DBX_DEBUGGING_INFO 1
355
356 /* Also enable Dwarf 2 as an option. */
357 #define DWARF2_DEBUGGING_INFO
358 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
359
360 #define DEBUG_FRAME_SECTION "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
361 #define DEBUG_INFO_SECTION "__DWARFA,__debug_info"
362 #define DEBUG_ABBREV_SECTION "__DWARFA,__debug_abbrev"
363 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
364 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
365 #define DEBUG_LINE_SECTION "__DWARFA,__debug_line"
366 #define DEBUG_LOC_SECTION "__DWARFA,__debug_loc"
367 #define DEBUG_PUBNAMES_SECTION "__DWARFA,__debug_pubnames"
368 #define DEBUG_STR_SECTION "__DWARFA,__debug_str"
369 #define DEBUG_RANGES_SECTION "__DWARFA,__debug_ranges"
370
371 /* When generating stabs debugging, use N_BINCL entries. */
372
373 #define DBX_USE_BINCL
374
375 /* There is no limit to the length of stabs strings. */
376
377 #define DBX_CONTIN_LENGTH 0
378
379 /* gdb needs a null N_SO at the end of each file for scattered loading. */
380
381 #define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
382
383 /* GCC's definition of 'one_only' is the same as its definition of 'weak'. */
384 #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
385
386 /* Mach-O supports 'weak imports', and 'weak definitions' in coalesced
387 sections. machopic_select_section ensures that weak variables go in
388 coalesced sections. Weak aliases (or any other kind of aliases) are
389 not supported. Weak symbols that aren't visible outside the .s file
390 are not supported. */
391 #define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS) \
392 do { \
393 if (ALIAS) \
394 { \
395 warning (0, "alias definitions not supported in Mach-O; ignored"); \
396 break; \
397 } \
398 \
399 if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL)) \
400 targetm.asm_out.globalize_label (FILE, NAME); \
401 if (DECL_EXTERNAL (DECL)) \
402 fputs ("\t.weak_reference ", FILE); \
403 else if (! lookup_attribute ("weak", DECL_ATTRIBUTES (DECL)) \
404 && lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL))) \
405 break; \
406 else if (TREE_PUBLIC (DECL)) \
407 fputs ("\t.weak_definition ", FILE); \
408 else \
409 break; \
410 assemble_name (FILE, NAME); \
411 fputc ('\n', FILE); \
412 } while (0)
413
414 /* Darwin has the pthread routines in libSystem, which every program
415 links to, so there's no need for weak-ness for that. */
416 #define GTHREAD_USE_WEAK 0
417
418 /* The Darwin linker imposes two limitations on common symbols: they
419 can't have hidden visibility, and they can't appear in dylibs. As
420 a consequence, we should never use common symbols to represent
421 vague linkage. */
422 #undef USE_COMMON_FOR_ONE_ONLY
423 #define USE_COMMON_FOR_ONE_ONLY 0
424
425 /* The Darwin linker doesn't want coalesced symbols to appear in
426 a static archive's table of contents. */
427 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
428 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
429
430 /* We make exception information linkonce. */
431 #undef TARGET_USES_WEAK_UNWIND_INFO
432 #define TARGET_USES_WEAK_UNWIND_INFO 1
433
434 /* We need to use a nonlocal label for the start of an EH frame: the
435 Darwin linker requires that a coalesced section start with a label. */
436 #undef FRAME_BEGIN_LABEL
437 #define FRAME_BEGIN_LABEL "EH_frame"
438
439 /* Emit a label for the FDE corresponding to DECL. EMPTY means
440 emit a label for an empty FDE. */
441 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
442
443 /* Our profiling scheme doesn't LP labels and counter words. */
444
445 #define NO_PROFILE_COUNTERS 1
446
447 #undef INIT_SECTION_ASM_OP
448 #define INIT_SECTION_ASM_OP
449
450 #undef INVOKE__main
451
452 #define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
453 #define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
454
455 /* Always prefix with an underscore. */
456
457 #define USER_LABEL_PREFIX "_"
458
459 /* Don't output a .file directive. That is only used by the assembler for
460 error reporting. */
461 #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
462 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
463
464 #undef TARGET_ASM_FILE_END
465 #define TARGET_ASM_FILE_END darwin_file_end
466
467 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
468 fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
469
470 /* Give ObjC methods pretty symbol names. */
471
472 #undef OBJC_GEN_METHOD_LABEL
473 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
474 do { if (CAT_NAME) \
475 sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
476 (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
477 else \
478 sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
479 (CLASS_NAME), (SEL_NAME)); \
480 } while (0)
481
482 /* The RTTI data (e.g., __ti4name) is common and public (and static),
483 but it does need to be referenced via indirect PIC data pointers.
484 The machopic_define_symbol calls are telling the machopic subsystem
485 that the name *is* defined in this module, so it doesn't need to
486 make them indirect. */
487
488 #undef ASM_DECLARE_OBJECT_NAME
489 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
490 do { \
491 const char *xname = NAME; \
492 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
493 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
494 if (! DECL_WEAK (DECL) \
495 && ((TREE_STATIC (DECL) \
496 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
497 || DECL_INITIAL (DECL))) \
498 machopic_define_symbol (DECL_RTL (DECL)); \
499 if ((TREE_STATIC (DECL) \
500 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
501 || DECL_INITIAL (DECL)) \
502 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
503 ASM_OUTPUT_LABEL (FILE, xname); \
504 /* Darwin doesn't support zero-size objects, so give them a \
505 byte. */ \
506 if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0) \
507 assemble_zeros (1); \
508 } while (0)
509
510 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
511 do { \
512 const char *xname = NAME; \
513 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
514 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
515 if (! DECL_WEAK (DECL) \
516 && ((TREE_STATIC (DECL) \
517 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
518 || DECL_INITIAL (DECL))) \
519 machopic_define_symbol (DECL_RTL (DECL)); \
520 if ((TREE_STATIC (DECL) \
521 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
522 || DECL_INITIAL (DECL)) \
523 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
524 ASM_OUTPUT_LABEL (FILE, xname); \
525 } while (0)
526
527 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE) \
528 do { \
529 ASM_OUTPUT_LABEL (FILE, NAME); \
530 /* Darwin doesn't support zero-size objects, so give them a \
531 byte. */ \
532 if ((SIZE) == 0) \
533 assemble_zeros (1); \
534 } while (0)
535
536 /* Wrap new method names in quotes so the assembler doesn't gag.
537 Make Objective-C internal symbols local. */
538
539 #undef ASM_OUTPUT_LABELREF
540 #define ASM_OUTPUT_LABELREF(FILE,NAME) \
541 do { \
542 const char *xname = (NAME); \
543 if (! strcmp (xname, "<pic base>")) \
544 machopic_output_function_base_name(FILE); \
545 else if (xname[0] == '&' || xname[0] == '*') \
546 { \
547 int len = strlen (xname); \
548 if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
549 machopic_validate_stub_or_non_lazy_ptr (xname); \
550 else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
551 machopic_validate_stub_or_non_lazy_ptr (xname); \
552 else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
553 machopic_validate_stub_or_non_lazy_ptr (xname); \
554 else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \
555 machopic_validate_stub_or_non_lazy_ptr (xname); \
556 if (xname[1] != '"' && name_needs_quotes (&xname[1])) \
557 fprintf (FILE, "\"%s\"", &xname[1]); \
558 else \
559 fputs (&xname[1], FILE); \
560 } \
561 else if (xname[0] == '+' || xname[0] == '-') \
562 fprintf (FILE, "\"%s\"", xname); \
563 else if (!strncmp (xname, "_OBJC_", 6)) \
564 fprintf (FILE, "L%s", xname); \
565 else if (!strncmp (xname, ".objc_class_name_", 17)) \
566 fprintf (FILE, "%s", xname); \
567 else if (xname[0] != '"' && name_needs_quotes (xname)) \
568 fprintf (FILE, "\"%s\"", xname); \
569 else \
570 asm_fprintf (FILE, "%U%s", xname); \
571 } while (0)
572
573 /* Output before executable code. */
574 #undef TEXT_SECTION_ASM_OP
575 #define TEXT_SECTION_ASM_OP "\t.text"
576
577 /* Output before writable data. */
578
579 #undef DATA_SECTION_ASM_OP
580 #define DATA_SECTION_ASM_OP "\t.data"
581
582 #undef ALIGN_ASM_OP
583 #define ALIGN_ASM_OP ".align"
584
585 #undef ASM_OUTPUT_ALIGN
586 #define ASM_OUTPUT_ALIGN(FILE,LOG) \
587 if ((LOG) != 0) \
588 fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
589
590 /* Ensure correct alignment of bss data. */
591
592 #undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
593 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
594 do { \
595 unsigned HOST_WIDE_INT _new_size = SIZE; \
596 fputs (".lcomm ", (FILE)); \
597 assemble_name ((FILE), (NAME)); \
598 if (_new_size == 0) _new_size = 1; \
599 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_size, \
600 floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
601 if ((DECL) && ((TREE_STATIC (DECL) \
602 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
603 || DECL_INITIAL (DECL))) \
604 { \
605 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
606 machopic_define_symbol (DECL_RTL (DECL)); \
607 } \
608 } while (0)
609
610 /* The maximum alignment which the object file format can support.
611 For Mach-O, this is 2^15. */
612
613 #undef MAX_OFILE_ALIGNMENT
614 #define MAX_OFILE_ALIGNMENT 0x8000
615
616 /* Create new Mach-O sections. */
617
618 #undef SECTION_FUNCTION
619 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
620 extern void FUNCTION (void); \
621 void \
622 FUNCTION (void) \
623 { \
624 if (in_section != SECTION) \
625 { \
626 if (OBJC) \
627 objc_section_init (); \
628 if (asm_out_file) \
629 fputs ("\t" DIRECTIVE "\n", asm_out_file); \
630 in_section = SECTION; \
631 if ((SECTION == in_text_coal) \
632 || (SECTION == in_text_unlikely) \
633 || (SECTION == in_text_unlikely_coal)) \
634 last_text_section = SECTION; \
635 } \
636 } \
637
638 /* Darwin uses many types of special sections. */
639
640 #undef EXTRA_SECTIONS
641 #define EXTRA_SECTIONS \
642 in_text_coal, in_text_unlikely, in_text_unlikely_coal, \
643 in_const, in_const_data, in_cstring, in_literal4, in_literal8, \
644 in_const_coal, in_const_data_coal, in_data_coal, \
645 in_constructor, in_destructor, in_mod_init, in_mod_term, \
646 in_objc_class, in_objc_meta_class, in_objc_category, \
647 in_objc_class_vars, in_objc_instance_vars, \
648 in_objc_cls_meth, in_objc_inst_meth, \
649 in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
650 in_objc_selector_refs, \
651 in_objc_selector_fixup, \
652 in_objc_symbols, in_objc_module_info, \
653 in_objc_protocol, in_objc_string_object, \
654 in_objc_constant_string_object, \
655 in_objc_image_info, \
656 in_objc_class_names, in_objc_meth_var_names, \
657 in_objc_meth_var_types, in_objc_cls_refs, \
658 in_machopic_nl_symbol_ptr, \
659 in_machopic_lazy_symbol_ptr, \
660 in_machopic_symbol_stub, \
661 in_machopic_symbol_stub1, \
662 in_machopic_picsymbol_stub, \
663 in_machopic_picsymbol_stub1, \
664 in_darwin_exception, in_darwin_eh_frame, \
665 num_sections
666
667 #undef EXTRA_SECTION_FUNCTIONS
668 #define EXTRA_SECTION_FUNCTIONS \
669 static void objc_section_init (void); \
670 SECTION_FUNCTION (text_coal_section, \
671 in_text_coal, \
672 ".section __TEXT,__textcoal_nt,coalesced," \
673 "pure_instructions", 0) \
674 SECTION_FUNCTION (text_unlikely_coal_section, \
675 in_text_unlikely_coal, \
676 ".section __TEXT,__text_unlikely_coal," \
677 "coalesced,pure_instructions", 0) \
678 SECTION_FUNCTION (const_section, \
679 in_const, \
680 ".const", 0) \
681 SECTION_FUNCTION (const_coal_section, \
682 in_const_coal, \
683 ".section __TEXT,__const_coal,coalesced", 0) \
684 SECTION_FUNCTION (const_data_section, \
685 in_const_data, \
686 ".const_data", 0) \
687 SECTION_FUNCTION (const_data_coal_section, \
688 in_const_data_coal, \
689 ".section __DATA,__const_coal,coalesced", 0) \
690 SECTION_FUNCTION (data_coal_section, \
691 in_data_coal, \
692 ".section __DATA,__datacoal_nt,coalesced", 0) \
693 SECTION_FUNCTION (cstring_section, \
694 in_cstring, \
695 ".cstring", 0) \
696 SECTION_FUNCTION (literal4_section, \
697 in_literal4, \
698 ".literal4", 0) \
699 SECTION_FUNCTION (literal8_section, \
700 in_literal8, \
701 ".literal8", 0) \
702 SECTION_FUNCTION (constructor_section, \
703 in_constructor, \
704 ".constructor", 0) \
705 SECTION_FUNCTION (mod_init_section, \
706 in_mod_init, \
707 ".mod_init_func", 0) \
708 SECTION_FUNCTION (mod_term_section, \
709 in_mod_term, \
710 ".mod_term_func", 0) \
711 SECTION_FUNCTION (destructor_section, \
712 in_destructor, \
713 ".destructor", 0) \
714 SECTION_FUNCTION (objc_class_section, \
715 in_objc_class, \
716 ".objc_class", 1) \
717 SECTION_FUNCTION (objc_meta_class_section, \
718 in_objc_meta_class, \
719 ".objc_meta_class", 1) \
720 SECTION_FUNCTION (objc_category_section, \
721 in_objc_category, \
722 ".objc_category", 1) \
723 SECTION_FUNCTION (objc_class_vars_section, \
724 in_objc_class_vars, \
725 ".objc_class_vars", 1) \
726 SECTION_FUNCTION (objc_instance_vars_section, \
727 in_objc_instance_vars, \
728 ".objc_instance_vars", 1) \
729 SECTION_FUNCTION (objc_cls_meth_section, \
730 in_objc_cls_meth, \
731 ".objc_cls_meth", 1) \
732 SECTION_FUNCTION (objc_inst_meth_section, \
733 in_objc_inst_meth, \
734 ".objc_inst_meth", 1) \
735 SECTION_FUNCTION (objc_cat_cls_meth_section, \
736 in_objc_cat_cls_meth, \
737 ".objc_cat_cls_meth", 1) \
738 SECTION_FUNCTION (objc_cat_inst_meth_section, \
739 in_objc_cat_inst_meth, \
740 ".objc_cat_inst_meth", 1) \
741 SECTION_FUNCTION (objc_selector_refs_section, \
742 in_objc_selector_refs, \
743 ".objc_message_refs", 1) \
744 SECTION_FUNCTION (objc_selector_fixup_section, \
745 in_objc_selector_fixup, \
746 ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1) \
747 SECTION_FUNCTION (objc_symbols_section, \
748 in_objc_symbols, \
749 ".objc_symbols", 1) \
750 SECTION_FUNCTION (objc_module_info_section, \
751 in_objc_module_info, \
752 ".objc_module_info", 1) \
753 SECTION_FUNCTION (objc_protocol_section, \
754 in_objc_protocol, \
755 ".objc_protocol", 1) \
756 SECTION_FUNCTION (objc_string_object_section, \
757 in_objc_string_object, \
758 ".objc_string_object", 1) \
759 SECTION_FUNCTION (objc_constant_string_object_section, \
760 in_objc_constant_string_object, \
761 ".section __OBJC, __cstring_object, regular, " \
762 "no_dead_strip", 1) \
763 /* Fix-and-Continue image marker. */ \
764 SECTION_FUNCTION (objc_image_info_section, \
765 in_objc_image_info, \
766 ".section __OBJC, __image_info, regular, " \
767 "no_dead_strip", 1) \
768 SECTION_FUNCTION (objc_class_names_section, \
769 in_objc_class_names, \
770 ".objc_class_names", 1) \
771 SECTION_FUNCTION (objc_meth_var_names_section, \
772 in_objc_meth_var_names, \
773 ".objc_meth_var_names", 1) \
774 SECTION_FUNCTION (objc_meth_var_types_section, \
775 in_objc_meth_var_types, \
776 ".objc_meth_var_types", 1) \
777 SECTION_FUNCTION (objc_cls_refs_section, \
778 in_objc_cls_refs, \
779 ".objc_cls_refs", 1) \
780 \
781 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
782 in_machopic_lazy_symbol_ptr, \
783 ".lazy_symbol_pointer", 0) \
784 SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
785 in_machopic_nl_symbol_ptr, \
786 ".non_lazy_symbol_pointer", 0) \
787 SECTION_FUNCTION (machopic_symbol_stub_section, \
788 in_machopic_symbol_stub, \
789 ".symbol_stub", 0) \
790 SECTION_FUNCTION (machopic_symbol_stub1_section, \
791 in_machopic_symbol_stub1, \
792 ".section __TEXT,__symbol_stub1,symbol_stubs," \
793 "pure_instructions,16", 0) \
794 SECTION_FUNCTION (machopic_picsymbol_stub_section, \
795 in_machopic_picsymbol_stub, \
796 ".picsymbol_stub", 0) \
797 SECTION_FUNCTION (machopic_picsymbol_stub1_section, \
798 in_machopic_picsymbol_stub1, \
799 ".section __TEXT,__picsymbolstub1,symbol_stubs," \
800 "pure_instructions,32", 0) \
801 SECTION_FUNCTION (darwin_exception_section, \
802 in_darwin_exception, \
803 ".section __DATA,__gcc_except_tab", 0) \
804 SECTION_FUNCTION (darwin_eh_frame_section, \
805 in_darwin_eh_frame, \
806 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" \
807 EH_FRAME_SECTION_ATTR, 0) \
808 \
809 static void \
810 objc_section_init (void) \
811 { \
812 static int been_here = 0; \
813 \
814 if (been_here == 0) \
815 { \
816 been_here = 1; \
817 /* written, cold -> hot */ \
818 objc_cat_cls_meth_section (); \
819 objc_cat_inst_meth_section (); \
820 objc_string_object_section (); \
821 objc_constant_string_object_section (); \
822 objc_selector_refs_section (); \
823 objc_selector_fixup_section (); \
824 objc_cls_refs_section (); \
825 objc_class_section (); \
826 objc_meta_class_section (); \
827 /* shared, hot -> cold */ \
828 objc_cls_meth_section (); \
829 objc_inst_meth_section (); \
830 objc_protocol_section (); \
831 objc_class_names_section (); \
832 objc_meth_var_types_section (); \
833 objc_meth_var_names_section (); \
834 objc_category_section (); \
835 objc_class_vars_section (); \
836 objc_instance_vars_section (); \
837 objc_module_info_section (); \
838 objc_symbols_section (); \
839 } \
840 }
841
842 #define READONLY_DATA_SECTION const_section
843
844 #undef TARGET_ASM_SELECT_SECTION
845 #define TARGET_ASM_SELECT_SECTION machopic_select_section
846 #define USE_SELECT_SECTION_FOR_FUNCTIONS
847
848 #undef TARGET_ASM_SELECT_RTX_SECTION
849 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
850 #undef TARGET_ASM_UNIQUE_SECTION
851 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
852 #undef TARGET_ASM_FUNCTION_RODATA_SECTION
853 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
854
855
856 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
857 do { \
858 if (FILE) { \
859 if (MACHOPIC_INDIRECT) \
860 fprintf (FILE, "\t.lazy_reference "); \
861 else \
862 fprintf (FILE, "\t.reference "); \
863 assemble_name (FILE, NAME); \
864 fprintf (FILE, "\n"); \
865 } \
866 } while (0)
867
868 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \
869 do { \
870 if (FILE) { \
871 fprintf (FILE, "\t"); \
872 assemble_name (FILE, NAME); \
873 fprintf (FILE, "=0\n"); \
874 (*targetm.asm_out.globalize_label) (FILE, NAME); \
875 } \
876 } while (0)
877
878 /* Globalizing directive for a label. */
879 #define GLOBAL_ASM_OP ".globl "
880 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
881
882 /* Emit an assembler directive to set visibility for a symbol. Used
883 to support visibility attribute and Darwin's private extern
884 feature. */
885 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
886 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
887
888 /* Extra attributes for Darwin. */
889 #define SUBTARGET_ATTRIBUTE_TABLE \
890 /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
891 { "weak_import", 0, 0, true, false, false, \
892 darwin_handle_weak_import_attribute }
893
894 #undef ASM_GENERATE_INTERNAL_LABEL
895 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
896 sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
897
898 #undef TARGET_ASM_MARK_DECL_PRESERVED
899 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
900
901 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
902 MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
903 variable has been defined in this translation unit. */
904
905 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
906 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
907
908 /* Set on a symbol to indicate when fix-and-continue style code
909 generation is being used and the symbol refers to a static symbol
910 that should be rebound from new instances of a translation unit to
911 the original instance of the data. */
912
913 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
914
915 /* Symbolic names for various things we might know about a symbol. */
916
917 enum machopic_addr_class {
918 MACHOPIC_UNDEFINED,
919 MACHOPIC_DEFINED_DATA,
920 MACHOPIC_UNDEFINED_DATA,
921 MACHOPIC_DEFINED_FUNCTION,
922 MACHOPIC_UNDEFINED_FUNCTION
923 };
924
925 /* Macros defining the various PIC cases. */
926
927 #define MACHO_DYNAMIC_NO_PIC_P (TARGET_DYNAMIC_NO_PIC)
928 #define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
929 #define MACHOPIC_JUST_INDIRECT (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
930 #define MACHOPIC_PURE (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
931
932 #undef TARGET_ENCODE_SECTION_INFO
933 #define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
934 #undef TARGET_STRIP_NAME_ENCODING
935 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
936
937 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
938 do { \
939 const char *const stub_ = (STUB); \
940 char *buffer_ = (BUF); \
941 strcpy (buffer_, stub_); \
942 if (stub_[0] == '"') \
943 { \
944 strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \
945 } \
946 else \
947 { \
948 strcpy (buffer_ + (STUB_LENGTH), "_binder"); \
949 } \
950 } while (0)
951
952 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
953 do { \
954 const char *const symbol_ = (SYMBOL); \
955 char *buffer_ = (BUF); \
956 if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
957 { \
958 sprintf (buffer_, "\"%s\"", symbol_); \
959 } \
960 else \
961 { \
962 strcpy (buffer_, symbol_); \
963 } \
964 } while (0)
965
966 /* Given a symbol name string, create the lazy pointer version
967 of the symbol name. */
968
969 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
970 do { \
971 const char *symbol_ = (SYMBOL); \
972 char *buffer_ = (BUF); \
973 if (symbol_[0] == '"') \
974 { \
975 strcpy (buffer_, "\"L"); \
976 strcpy (buffer_ + 2, symbol_ + 1); \
977 strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
978 } \
979 else if (name_needs_quotes (symbol_)) \
980 { \
981 strcpy (buffer_, "\"L"); \
982 strcpy (buffer_ + 2, symbol_); \
983 strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \
984 } \
985 else \
986 { \
987 strcpy (buffer_, "L"); \
988 strcpy (buffer_ + 1, symbol_); \
989 strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \
990 } \
991 } while (0)
992
993 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
994
995 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
996
997 #define EH_FRAME_SECTION_NAME "__TEXT"
998 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
999
1000 /* Java runtime class list. */
1001 #define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
1002
1003 #undef ASM_PREFERRED_EH_DATA_FORMAT
1004 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1005 (((CODE) == 2 && (GLOBAL) == 1) \
1006 ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \
1007 ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
1008
1009 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
1010 darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
1011
1012 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \
1013 if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \
1014 darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \
1015 goto DONE; \
1016 }
1017
1018 /* Experimentally, putting jump tables in text is faster on SPEC.
1019 Also this is needed for correctness for coalesced functions. */
1020
1021 #ifndef JUMP_TABLES_IN_TEXT_SECTION
1022 #define JUMP_TABLES_IN_TEXT_SECTION 1
1023 #endif
1024
1025 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
1026
1027 #undef TARGET_ASM_NAMED_SECTION
1028 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
1029
1030 #define DARWIN_REGISTER_TARGET_PRAGMAS() \
1031 do { \
1032 c_register_pragma (0, "mark", darwin_pragma_ignore); \
1033 c_register_pragma (0, "options", darwin_pragma_options); \
1034 c_register_pragma (0, "segment", darwin_pragma_ignore); \
1035 c_register_pragma (0, "unused", darwin_pragma_unused); \
1036 } while (0)
1037
1038 #undef ASM_APP_ON
1039 #define ASM_APP_ON ""
1040 #undef ASM_APP_OFF
1041 #define ASM_APP_OFF ""
1042
1043 void darwin_register_frameworks (const char *, const char *, int);
1044 void darwin_register_objc_includes (const char *, const char *, int);
1045 #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
1046 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
1047
1048 void add_framework_path (char *);
1049 #define TARGET_OPTF add_framework_path
1050
1051 #define TARGET_POSIX_IO
1052
1053 /* All new versions of Darwin have C99 functions. */
1054 #define TARGET_C99_FUNCTIONS 1
1055
1056 #define WINT_TYPE "int"
1057
1058 #endif /* CONFIG_DARWIN_H */
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