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* arm.c (emit_set_insn): New function.
[official-gcc.git] / gcc / config / darwin.h
bloba78d1d33b075591ed92538f3fc598561753fa4be
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 /* These compiler options take n arguments. */
144
145 #undef WORD_SWITCH_TAKES_ARG
146 #define WORD_SWITCH_TAKES_ARG(STR) \
147 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 : \
148 !strcmp (STR, "Zallowable_client") ? 1 : \
149 !strcmp (STR, "arch") ? 1 : \
150 !strcmp (STR, "arch_only") ? 1 : \
151 !strcmp (STR, "Zbundle_loader") ? 1 : \
152 !strcmp (STR, "client_name") ? 1 : \
153 !strcmp (STR, "compatibility_version") ? 1 : \
154 !strcmp (STR, "current_version") ? 1 : \
155 !strcmp (STR, "Zdylib_file") ? 1 : \
156 !strcmp (STR, "Zexported_symbols_list") ? 1 : \
157 !strcmp (STR, "Zimage_base") ? 1 : \
158 !strcmp (STR, "Zinit") ? 1 : \
159 !strcmp (STR, "Zinstall_name") ? 1 : \
160 !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
161 !strcmp (STR, "Zmultiply_defined") ? 1 : \
162 !strcmp (STR, "precomp-trustfile") ? 1 : \
163 !strcmp (STR, "read_only_relocs") ? 1 : \
164 !strcmp (STR, "sectcreate") ? 3 : \
165 !strcmp (STR, "sectorder") ? 3 : \
166 !strcmp (STR, "Zsegaddr") ? 2 : \
167 !strcmp (STR, "Zsegs_read_only_addr") ? 1 : \
168 !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
169 !strcmp (STR, "Zseg_addr_table") ? 1 : \
170 !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
171 !strcmp (STR, "seg1addr") ? 1 : \
172 !strcmp (STR, "segprot") ? 3 : \
173 !strcmp (STR, "sub_library") ? 1 : \
174 !strcmp (STR, "sub_umbrella") ? 1 : \
175 !strcmp (STR, "umbrella") ? 1 : \
176 !strcmp (STR, "undefined") ? 1 : \
177 !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
178 !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
179 !strcmp (STR, "pagezero_size") ? 1 : \
180 !strcmp (STR, "segs_read_only_addr") ? 1 : \
181 !strcmp (STR, "segs_read_write_addr") ? 1 : \
182 !strcmp (STR, "sectalign") ? 3 : \
183 !strcmp (STR, "sectobjectsymbols") ? 2 : \
184 !strcmp (STR, "segcreate") ? 3 : \
185 !strcmp (STR, "dylinker_install_name") ? 1 : \
186 0)
187
188 /* Machine dependent cpp options. Don't add more options here, add
189 them to darwin_cpp_builtins in darwin-c.c. */
190
191 #undef CPP_SPEC
192 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}"
193
194 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
195 precomp, libtool, and fat build additions. Also we
196 don't specify a second %G after %L because libSystem is
197 self-contained and doesn't need to link against libgcc.a. */
198 /* In general, random Darwin linker flags should go into LINK_SPEC
199 instead of LINK_COMMAND_SPEC. The command spec is better for
200 specifying the handling of options understood by generic Unix
201 linkers, and for positional arguments like libraries. */
202 #define LINK_COMMAND_SPEC "\
203 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
204 %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
205 %l %X %{d} %{s} %{t} %{Z} \
206 %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
207 %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
208 %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
209 %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
210 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %G %L}} \
211 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
212
213 /* Please keep the random linker options in alphabetical order (modulo
214 'Z' and 'no' prefixes). Options that can only go to one of libtool
215 or ld must be listed twice, under both !Zdynamiclib and
216 Zdynamiclib, with one of the cases reporting an error. */
217 /* Note that options taking arguments may appear multiple times on a
218 command line with different arguments each time, so put a * after
219 their names so all of them get passed. */
220 #define LINK_SPEC \
221 "%{static}%{!static:-dynamic} \
222 %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}\
223 %{!Zdynamiclib: \
224 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \
225 %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \
226 %{Zbundle:-bundle} \
227 %{Zbundle_loader*:-bundle_loader %*} \
228 %{client_name*} \
229 %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
230 } \
231 %{current_version*:%e-current_version only allowed with -dynamiclib} \
232 %{Zforce_flat_namespace:-force_flat_namespace} \
233 %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
234 %{keep_private_externs} \
235 %{private_bundle} \
236 } \
237 %{Zdynamiclib: \
238 %{Zbundle:%e-bundle not allowed with -dynamiclib} \
239 %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
240 %{client_name*:%e-client_name not allowed with -dynamiclib} \
241 %{compatibility_version*} \
242 %{current_version*} \
243 %{Zforce_cpusubtype_ALL:-arch_only %(darwin_arch)} \
244 %{!Zforce_cpusubtype_ALL: -arch_only %(darwin_subarch)} \
245 %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
246 %{Zinstall_name*:-install_name %*} \
247 %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
248 %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
249 } \
250 %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
251 %{Zallowable_client*:-allowable_client %*} \
252 %{Zbind_at_load:-bind_at_load} \
253 %{Zarch_errors_fatal:-arch_errors_fatal} \
254 %{Zdead_strip:-dead_strip} \
255 %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
256 %{Zdylib_file*:-dylib_file %*} \
257 %{Zdynamic:-dynamic}\
258 %{Zexported_symbols_list*:-exported_symbols_list %*} \
259 %{Zflat_namespace:-flat_namespace} \
260 %{headerpad_max_install_names*} \
261 %{Zimage_base*:-image_base %*} \
262 %{Zinit*:-init %*} \
263 %{mmacosx-version-min=*:-macosx_version_min %*} \
264 %{nomultidefs} \
265 %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
266 %{Zmultiply_defined*:-multiply_defined %*} \
267 %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
268 %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
269 %{read_only_relocs} \
270 %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
271 %{Zsegaddr*:-segaddr %*} \
272 %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
273 %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
274 %{Zseg_addr_table*: -seg_addr_table %*} \
275 %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
276 %{sub_library*} %{sub_umbrella*} \
277 %{isysroot*:-syslibroot %*} \
278 %{twolevel_namespace} %{twolevel_namespace_hints} \
279 %{umbrella*} \
280 %{undefined*} \
281 %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
282 %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
283 %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \
284 %{X} \
285 %{y*} \
286 %{w} \
287 %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
288 %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
289 %{whatsloaded} %{dylinker_install_name*} \
290 %{dylinker} %{Mach} "
291
292
293 /* Machine dependent libraries. */
294
295 #define LIB_SPEC "%{!static:-lSystem}"
296
297 /* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib
298 libraries to link against, and by not linking against libgcc_s on
299 earlier-than-10.3.9.
300
301 Note that by default, -lgcc_eh is not linked against! This is
302 because in a future version of Darwin the EH frame information may
303 be in a new format, or the fallback routine might be changed; if
304 you want to explicitly link against the static version of those
305 routines, because you know you don't need to unwind through system
306 libraries, you need to explicitly say -static-libgcc.
307
308 If it is linked against, it has to be before -lgcc, because it may
309 need symbols from -lgcc. */
310 #undef REAL_LIBGCC_SPEC
311 #define REAL_LIBGCC_SPEC \
312 "%{static-libgcc|static: -lgcc_eh -lgcc; \
313 shared-libgcc|fexceptions: \
314 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \
315 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
316 -lgcc; \
317 :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \
318 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
319 -lgcc}"
320
321 /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
322
323 #undef STARTFILE_SPEC
324 #define STARTFILE_SPEC \
325 "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
326 %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
327 %{!static:%{object:-lgcrt0.o} \
328 %{!object:%{preload:-lgcrt0.o} \
329 %{!preload:-lgcrt1.o %(darwin_crt2)}}}} \
330 %{!pg:%{static:-lcrt0.o} \
331 %{!static:%{object:-lcrt0.o} \
332 %{!object:%{preload:-lcrt0.o} \
333 %{!preload:-lcrt1.o %(darwin_crt2)}}}}}}"
334
335 /* The native Darwin linker doesn't necessarily place files in the order
336 that they're specified on the link line. Thus, it is pointless
337 to put anything in ENDFILE_SPEC. */
338 /* #define ENDFILE_SPEC "" */
339
340 /* Default Darwin ASM_SPEC, very simple. */
341 #define ASM_SPEC "-arch %(darwin_arch) \
342 %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL}"
343
344 /* We use Dbx symbol format. */
345
346 #define DBX_DEBUGGING_INFO 1
347
348 /* Also enable Dwarf 2 as an option. */
349 #define DWARF2_DEBUGGING_INFO
350 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
351
352 #define DEBUG_FRAME_SECTION "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
353 #define DEBUG_INFO_SECTION "__DWARFA,__debug_info"
354 #define DEBUG_ABBREV_SECTION "__DWARFA,__debug_abbrev"
355 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
356 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
357 #define DEBUG_LINE_SECTION "__DWARFA,__debug_line"
358 #define DEBUG_LOC_SECTION "__DWARFA,__debug_loc"
359 #define DEBUG_PUBNAMES_SECTION "__DWARFA,__debug_pubnames"
360 #define DEBUG_STR_SECTION "__DWARFA,__debug_str"
361 #define DEBUG_RANGES_SECTION "__DWARFA,__debug_ranges"
362
363 /* When generating stabs debugging, use N_BINCL entries. */
364
365 #define DBX_USE_BINCL
366
367 /* There is no limit to the length of stabs strings. */
368
369 #define DBX_CONTIN_LENGTH 0
370
371 /* gdb needs a null N_SO at the end of each file for scattered loading. */
372
373 #define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
374
375 /* GCC's definition of 'one_only' is the same as its definition of 'weak'. */
376 #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
377
378 /* Mach-O supports 'weak imports', and 'weak definitions' in coalesced
379 sections. machopic_select_section ensures that weak variables go in
380 coalesced sections. Weak aliases (or any other kind of aliases) are
381 not supported. Weak symbols that aren't visible outside the .s file
382 are not supported. */
383 #define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS) \
384 do { \
385 if (ALIAS) \
386 { \
387 warning (0, "alias definitions not supported in Mach-O; ignored"); \
388 break; \
389 } \
390 \
391 if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL)) \
392 targetm.asm_out.globalize_label (FILE, NAME); \
393 if (DECL_EXTERNAL (DECL)) \
394 fputs ("\t.weak_reference ", FILE); \
395 else if (! lookup_attribute ("weak", DECL_ATTRIBUTES (DECL)) \
396 && lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL))) \
397 break; \
398 else if (TREE_PUBLIC (DECL)) \
399 fputs ("\t.weak_definition ", FILE); \
400 else \
401 break; \
402 assemble_name (FILE, NAME); \
403 fputc ('\n', FILE); \
404 } while (0)
405
406 /* Darwin has the pthread routines in libSystem, which every program
407 links to, so there's no need for weak-ness for that. */
408 #define GTHREAD_USE_WEAK 0
409
410 /* The Darwin linker imposes two limitations on common symbols: they
411 can't have hidden visibility, and they can't appear in dylibs. As
412 a consequence, we should never use common symbols to represent
413 vague linkage. */
414 #undef USE_COMMON_FOR_ONE_ONLY
415 #define USE_COMMON_FOR_ONE_ONLY 0
416
417 /* The Darwin linker doesn't want coalesced symbols to appear in
418 a static archive's table of contents. */
419 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
420 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
421
422 /* We make exception information linkonce. */
423 #undef TARGET_USES_WEAK_UNWIND_INFO
424 #define TARGET_USES_WEAK_UNWIND_INFO 1
425
426 /* We need to use a nonlocal label for the start of an EH frame: the
427 Darwin linker requires that a coalesced section start with a label. */
428 #undef FRAME_BEGIN_LABEL
429 #define FRAME_BEGIN_LABEL "EH_frame"
430
431 /* Emit a label for the FDE corresponding to DECL. EMPTY means
432 emit a label for an empty FDE. */
433 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
434
435 /* Our profiling scheme doesn't LP labels and counter words. */
436
437 #define NO_PROFILE_COUNTERS 1
438
439 #undef INIT_SECTION_ASM_OP
440 #define INIT_SECTION_ASM_OP
441
442 #undef INVOKE__main
443
444 #define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
445 #define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
446
447 /* Always prefix with an underscore. */
448
449 #define USER_LABEL_PREFIX "_"
450
451 /* Don't output a .file directive. That is only used by the assembler for
452 error reporting. */
453 #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
454 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
455
456 #undef TARGET_ASM_FILE_END
457 #define TARGET_ASM_FILE_END darwin_file_end
458
459 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
460 fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
461
462 /* Give ObjC methods pretty symbol names. */
463
464 #undef OBJC_GEN_METHOD_LABEL
465 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
466 do { if (CAT_NAME) \
467 sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
468 (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
469 else \
470 sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
471 (CLASS_NAME), (SEL_NAME)); \
472 } while (0)
473
474 /* The RTTI data (e.g., __ti4name) is common and public (and static),
475 but it does need to be referenced via indirect PIC data pointers.
476 The machopic_define_symbol calls are telling the machopic subsystem
477 that the name *is* defined in this module, so it doesn't need to
478 make them indirect. */
479
480 #undef ASM_DECLARE_OBJECT_NAME
481 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
482 do { \
483 const char *xname = NAME; \
484 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
485 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
486 if (! DECL_WEAK (DECL) \
487 && ((TREE_STATIC (DECL) \
488 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
489 || DECL_INITIAL (DECL))) \
490 machopic_define_symbol (DECL_RTL (DECL)); \
491 if ((TREE_STATIC (DECL) \
492 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
493 || DECL_INITIAL (DECL)) \
494 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
495 ASM_OUTPUT_LABEL (FILE, xname); \
496 /* Darwin doesn't support zero-size objects, so give them a \
497 byte. */ \
498 if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0) \
499 assemble_zeros (1); \
500 } while (0)
501
502 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
503 do { \
504 const char *xname = NAME; \
505 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
506 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
507 if (! DECL_WEAK (DECL) \
508 && ((TREE_STATIC (DECL) \
509 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
510 || DECL_INITIAL (DECL))) \
511 machopic_define_symbol (DECL_RTL (DECL)); \
512 if ((TREE_STATIC (DECL) \
513 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
514 || DECL_INITIAL (DECL)) \
515 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
516 ASM_OUTPUT_LABEL (FILE, xname); \
517 } while (0)
518
519 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE) \
520 do { \
521 ASM_OUTPUT_LABEL (FILE, NAME); \
522 /* Darwin doesn't support zero-size objects, so give them a \
523 byte. */ \
524 if ((SIZE) == 0) \
525 assemble_zeros (1); \
526 } while (0)
527
528 /* Wrap new method names in quotes so the assembler doesn't gag.
529 Make Objective-C internal symbols local. */
530
531 #undef ASM_OUTPUT_LABELREF
532 #define ASM_OUTPUT_LABELREF(FILE,NAME) \
533 do { \
534 const char *xname = (NAME); \
535 if (! strcmp (xname, "<pic base>")) \
536 machopic_output_function_base_name(FILE); \
537 else if (xname[0] == '&' || xname[0] == '*') \
538 { \
539 int len = strlen (xname); \
540 if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
541 machopic_validate_stub_or_non_lazy_ptr (xname); \
542 else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
543 machopic_validate_stub_or_non_lazy_ptr (xname); \
544 else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
545 machopic_validate_stub_or_non_lazy_ptr (xname); \
546 else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \
547 machopic_validate_stub_or_non_lazy_ptr (xname); \
548 if (xname[1] != '"' && name_needs_quotes (&xname[1])) \
549 fprintf (FILE, "\"%s\"", &xname[1]); \
550 else \
551 fputs (&xname[1], FILE); \
552 } \
553 else if (xname[0] == '+' || xname[0] == '-') \
554 fprintf (FILE, "\"%s\"", xname); \
555 else if (!strncmp (xname, "_OBJC_", 6)) \
556 fprintf (FILE, "L%s", xname); \
557 else if (!strncmp (xname, ".objc_class_name_", 17)) \
558 fprintf (FILE, "%s", xname); \
559 else if (xname[0] != '"' && name_needs_quotes (xname)) \
560 fprintf (FILE, "\"%s\"", xname); \
561 else \
562 asm_fprintf (FILE, "%U%s", xname); \
563 } while (0)
564
565 /* Output before executable code. */
566 #undef TEXT_SECTION_ASM_OP
567 #define TEXT_SECTION_ASM_OP "\t.text"
568
569 /* Output before writable data. */
570
571 #undef DATA_SECTION_ASM_OP
572 #define DATA_SECTION_ASM_OP "\t.data"
573
574 #undef ALIGN_ASM_OP
575 #define ALIGN_ASM_OP ".align"
576
577 #undef ASM_OUTPUT_ALIGN
578 #define ASM_OUTPUT_ALIGN(FILE,LOG) \
579 if ((LOG) != 0) \
580 fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
581
582 /* Ensure correct alignment of bss data. */
583
584 #undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
585 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
586 do { \
587 unsigned HOST_WIDE_INT _new_size = SIZE; \
588 fputs (".lcomm ", (FILE)); \
589 assemble_name ((FILE), (NAME)); \
590 if (_new_size == 0) _new_size = 1; \
591 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_size, \
592 floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
593 if ((DECL) && ((TREE_STATIC (DECL) \
594 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
595 || DECL_INITIAL (DECL))) \
596 { \
597 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
598 machopic_define_symbol (DECL_RTL (DECL)); \
599 } \
600 } while (0)
601
602 /* The maximum alignment which the object file format can support.
603 For Mach-O, this is 2^15. */
604
605 #undef MAX_OFILE_ALIGNMENT
606 #define MAX_OFILE_ALIGNMENT 0x8000
607
608 /* Create new Mach-O sections. */
609
610 #undef SECTION_FUNCTION
611 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
612 extern void FUNCTION (void); \
613 void \
614 FUNCTION (void) \
615 { \
616 if (in_section != SECTION) \
617 { \
618 if (OBJC) \
619 objc_section_init (); \
620 if (asm_out_file) \
621 fputs ("\t" DIRECTIVE "\n", asm_out_file); \
622 in_section = SECTION; \
623 if ((SECTION == in_text_coal) \
624 || (SECTION == in_text_unlikely) \
625 || (SECTION == in_text_unlikely_coal)) \
626 last_text_section = SECTION; \
627 } \
628 } \
629
630 /* Darwin uses many types of special sections. */
631
632 #undef EXTRA_SECTIONS
633 #define EXTRA_SECTIONS \
634 in_text_coal, in_text_unlikely, in_text_unlikely_coal, \
635 in_const, in_const_data, in_cstring, in_literal4, in_literal8, \
636 in_const_coal, in_const_data_coal, in_data_coal, \
637 in_constructor, in_destructor, in_mod_init, in_mod_term, \
638 in_objc_class, in_objc_meta_class, in_objc_category, \
639 in_objc_class_vars, in_objc_instance_vars, \
640 in_objc_cls_meth, in_objc_inst_meth, \
641 in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
642 in_objc_selector_refs, \
643 in_objc_selector_fixup, \
644 in_objc_symbols, in_objc_module_info, \
645 in_objc_protocol, in_objc_string_object, \
646 in_objc_constant_string_object, \
647 in_objc_image_info, \
648 in_objc_class_names, in_objc_meth_var_names, \
649 in_objc_meth_var_types, in_objc_cls_refs, \
650 in_machopic_nl_symbol_ptr, \
651 in_machopic_lazy_symbol_ptr, \
652 in_machopic_symbol_stub, \
653 in_machopic_symbol_stub1, \
654 in_machopic_picsymbol_stub, \
655 in_machopic_picsymbol_stub1, \
656 in_darwin_exception, in_darwin_eh_frame, \
657 num_sections
658
659 #undef EXTRA_SECTION_FUNCTIONS
660 #define EXTRA_SECTION_FUNCTIONS \
661 static void objc_section_init (void); \
662 SECTION_FUNCTION (text_coal_section, \
663 in_text_coal, \
664 ".section __TEXT,__textcoal_nt,coalesced," \
665 "pure_instructions", 0) \
666 SECTION_FUNCTION (text_unlikely_coal_section, \
667 in_text_unlikely_coal, \
668 ".section __TEXT,__text_unlikely_coal," \
669 "coalesced,pure_instructions", 0) \
670 SECTION_FUNCTION (const_section, \
671 in_const, \
672 ".const", 0) \
673 SECTION_FUNCTION (const_coal_section, \
674 in_const_coal, \
675 ".section __TEXT,__const_coal,coalesced", 0) \
676 SECTION_FUNCTION (const_data_section, \
677 in_const_data, \
678 ".const_data", 0) \
679 SECTION_FUNCTION (const_data_coal_section, \
680 in_const_data_coal, \
681 ".section __DATA,__const_coal,coalesced", 0) \
682 SECTION_FUNCTION (data_coal_section, \
683 in_data_coal, \
684 ".section __DATA,__datacoal_nt,coalesced", 0) \
685 SECTION_FUNCTION (cstring_section, \
686 in_cstring, \
687 ".cstring", 0) \
688 SECTION_FUNCTION (literal4_section, \
689 in_literal4, \
690 ".literal4", 0) \
691 SECTION_FUNCTION (literal8_section, \
692 in_literal8, \
693 ".literal8", 0) \
694 SECTION_FUNCTION (constructor_section, \
695 in_constructor, \
696 ".constructor", 0) \
697 SECTION_FUNCTION (mod_init_section, \
698 in_mod_init, \
699 ".mod_init_func", 0) \
700 SECTION_FUNCTION (mod_term_section, \
701 in_mod_term, \
702 ".mod_term_func", 0) \
703 SECTION_FUNCTION (destructor_section, \
704 in_destructor, \
705 ".destructor", 0) \
706 SECTION_FUNCTION (objc_class_section, \
707 in_objc_class, \
708 ".objc_class", 1) \
709 SECTION_FUNCTION (objc_meta_class_section, \
710 in_objc_meta_class, \
711 ".objc_meta_class", 1) \
712 SECTION_FUNCTION (objc_category_section, \
713 in_objc_category, \
714 ".objc_category", 1) \
715 SECTION_FUNCTION (objc_class_vars_section, \
716 in_objc_class_vars, \
717 ".objc_class_vars", 1) \
718 SECTION_FUNCTION (objc_instance_vars_section, \
719 in_objc_instance_vars, \
720 ".objc_instance_vars", 1) \
721 SECTION_FUNCTION (objc_cls_meth_section, \
722 in_objc_cls_meth, \
723 ".objc_cls_meth", 1) \
724 SECTION_FUNCTION (objc_inst_meth_section, \
725 in_objc_inst_meth, \
726 ".objc_inst_meth", 1) \
727 SECTION_FUNCTION (objc_cat_cls_meth_section, \
728 in_objc_cat_cls_meth, \
729 ".objc_cat_cls_meth", 1) \
730 SECTION_FUNCTION (objc_cat_inst_meth_section, \
731 in_objc_cat_inst_meth, \
732 ".objc_cat_inst_meth", 1) \
733 SECTION_FUNCTION (objc_selector_refs_section, \
734 in_objc_selector_refs, \
735 ".objc_message_refs", 1) \
736 SECTION_FUNCTION (objc_selector_fixup_section, \
737 in_objc_selector_fixup, \
738 ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1) \
739 SECTION_FUNCTION (objc_symbols_section, \
740 in_objc_symbols, \
741 ".objc_symbols", 1) \
742 SECTION_FUNCTION (objc_module_info_section, \
743 in_objc_module_info, \
744 ".objc_module_info", 1) \
745 SECTION_FUNCTION (objc_protocol_section, \
746 in_objc_protocol, \
747 ".objc_protocol", 1) \
748 SECTION_FUNCTION (objc_string_object_section, \
749 in_objc_string_object, \
750 ".objc_string_object", 1) \
751 SECTION_FUNCTION (objc_constant_string_object_section, \
752 in_objc_constant_string_object, \
753 ".section __OBJC, __cstring_object, regular, " \
754 "no_dead_strip", 1) \
755 /* Fix-and-Continue image marker. */ \
756 SECTION_FUNCTION (objc_image_info_section, \
757 in_objc_image_info, \
758 ".section __OBJC, __image_info, regular, " \
759 "no_dead_strip", 1) \
760 SECTION_FUNCTION (objc_class_names_section, \
761 in_objc_class_names, \
762 ".objc_class_names", 1) \
763 SECTION_FUNCTION (objc_meth_var_names_section, \
764 in_objc_meth_var_names, \
765 ".objc_meth_var_names", 1) \
766 SECTION_FUNCTION (objc_meth_var_types_section, \
767 in_objc_meth_var_types, \
768 ".objc_meth_var_types", 1) \
769 SECTION_FUNCTION (objc_cls_refs_section, \
770 in_objc_cls_refs, \
771 ".objc_cls_refs", 1) \
772 \
773 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
774 in_machopic_lazy_symbol_ptr, \
775 ".lazy_symbol_pointer", 0) \
776 SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
777 in_machopic_nl_symbol_ptr, \
778 ".non_lazy_symbol_pointer", 0) \
779 SECTION_FUNCTION (machopic_symbol_stub_section, \
780 in_machopic_symbol_stub, \
781 ".symbol_stub", 0) \
782 SECTION_FUNCTION (machopic_symbol_stub1_section, \
783 in_machopic_symbol_stub1, \
784 ".section __TEXT,__symbol_stub1,symbol_stubs," \
785 "pure_instructions,16", 0) \
786 SECTION_FUNCTION (machopic_picsymbol_stub_section, \
787 in_machopic_picsymbol_stub, \
788 ".picsymbol_stub", 0) \
789 SECTION_FUNCTION (machopic_picsymbol_stub1_section, \
790 in_machopic_picsymbol_stub1, \
791 ".section __TEXT,__picsymbolstub1,symbol_stubs," \
792 "pure_instructions,32", 0) \
793 SECTION_FUNCTION (darwin_exception_section, \
794 in_darwin_exception, \
795 ".section __DATA,__gcc_except_tab", 0) \
796 SECTION_FUNCTION (darwin_eh_frame_section, \
797 in_darwin_eh_frame, \
798 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" \
799 EH_FRAME_SECTION_ATTR, 0) \
800 \
801 static void \
802 objc_section_init (void) \
803 { \
804 static int been_here = 0; \
805 \
806 if (been_here == 0) \
807 { \
808 been_here = 1; \
809 /* written, cold -> hot */ \
810 objc_cat_cls_meth_section (); \
811 objc_cat_inst_meth_section (); \
812 objc_string_object_section (); \
813 objc_constant_string_object_section (); \
814 objc_selector_refs_section (); \
815 objc_selector_fixup_section (); \
816 objc_cls_refs_section (); \
817 objc_class_section (); \
818 objc_meta_class_section (); \
819 /* shared, hot -> cold */ \
820 objc_cls_meth_section (); \
821 objc_inst_meth_section (); \
822 objc_protocol_section (); \
823 objc_class_names_section (); \
824 objc_meth_var_types_section (); \
825 objc_meth_var_names_section (); \
826 objc_category_section (); \
827 objc_class_vars_section (); \
828 objc_instance_vars_section (); \
829 objc_module_info_section (); \
830 objc_symbols_section (); \
831 } \
832 }
833
834 #define READONLY_DATA_SECTION const_section
835
836 #undef TARGET_ASM_SELECT_SECTION
837 #define TARGET_ASM_SELECT_SECTION machopic_select_section
838 #define USE_SELECT_SECTION_FOR_FUNCTIONS
839
840 #undef TARGET_ASM_SELECT_RTX_SECTION
841 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
842 #undef TARGET_ASM_UNIQUE_SECTION
843 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
844 #undef TARGET_ASM_FUNCTION_RODATA_SECTION
845 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
846
847
848 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
849 do { \
850 if (FILE) { \
851 if (MACHOPIC_INDIRECT) \
852 fprintf (FILE, "\t.lazy_reference "); \
853 else \
854 fprintf (FILE, "\t.reference "); \
855 assemble_name (FILE, NAME); \
856 fprintf (FILE, "\n"); \
857 } \
858 } while (0)
859
860 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \
861 do { \
862 if (FILE) { \
863 fprintf (FILE, "\t"); \
864 assemble_name (FILE, NAME); \
865 fprintf (FILE, "=0\n"); \
866 (*targetm.asm_out.globalize_label) (FILE, NAME); \
867 } \
868 } while (0)
869
870 /* Globalizing directive for a label. */
871 #define GLOBAL_ASM_OP ".globl "
872 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
873
874 /* Emit an assembler directive to set visibility for a symbol. Used
875 to support visibility attribute and Darwin's private extern
876 feature. */
877 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
878 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
879
880 /* Extra attributes for Darwin. */
881 #define SUBTARGET_ATTRIBUTE_TABLE \
882 /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
883 { "weak_import", 0, 0, true, false, false, \
884 darwin_handle_weak_import_attribute }
885
886 #undef ASM_GENERATE_INTERNAL_LABEL
887 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
888 sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
889
890 #undef TARGET_ASM_MARK_DECL_PRESERVED
891 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
892
893 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
894 MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
895 variable has been defined in this translation unit. */
896
897 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
898 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
899
900 /* Set on a symbol to indicate when fix-and-continue style code
901 generation is being used and the symbol refers to a static symbol
902 that should be rebound from new instances of a translation unit to
903 the original instance of the data. */
904
905 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
906
907 /* Symbolic names for various things we might know about a symbol. */
908
909 enum machopic_addr_class {
910 MACHOPIC_UNDEFINED,
911 MACHOPIC_DEFINED_DATA,
912 MACHOPIC_UNDEFINED_DATA,
913 MACHOPIC_DEFINED_FUNCTION,
914 MACHOPIC_UNDEFINED_FUNCTION
915 };
916
917 /* Macros defining the various PIC cases. */
918
919 #define MACHO_DYNAMIC_NO_PIC_P (TARGET_DYNAMIC_NO_PIC)
920 #define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
921 #define MACHOPIC_JUST_INDIRECT (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
922 #define MACHOPIC_PURE (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
923
924 #undef TARGET_ENCODE_SECTION_INFO
925 #define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
926 #undef TARGET_STRIP_NAME_ENCODING
927 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
928
929 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
930 do { \
931 const char *const stub_ = (STUB); \
932 char *buffer_ = (BUF); \
933 strcpy (buffer_, stub_); \
934 if (stub_[0] == '"') \
935 { \
936 strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \
937 } \
938 else \
939 { \
940 strcpy (buffer_ + (STUB_LENGTH), "_binder"); \
941 } \
942 } while (0)
943
944 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
945 do { \
946 const char *const symbol_ = (SYMBOL); \
947 char *buffer_ = (BUF); \
948 if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
949 { \
950 sprintf (buffer_, "\"%s\"", symbol_); \
951 } \
952 else \
953 { \
954 strcpy (buffer_, symbol_); \
955 } \
956 } while (0)
957
958 /* Given a symbol name string, create the lazy pointer version
959 of the symbol name. */
960
961 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
962 do { \
963 const char *symbol_ = (SYMBOL); \
964 char *buffer_ = (BUF); \
965 if (symbol_[0] == '"') \
966 { \
967 strcpy (buffer_, "\"L"); \
968 strcpy (buffer_ + 2, symbol_ + 1); \
969 strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
970 } \
971 else if (name_needs_quotes (symbol_)) \
972 { \
973 strcpy (buffer_, "\"L"); \
974 strcpy (buffer_ + 2, symbol_); \
975 strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \
976 } \
977 else \
978 { \
979 strcpy (buffer_, "L"); \
980 strcpy (buffer_ + 1, symbol_); \
981 strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \
982 } \
983 } while (0)
984
985 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
986
987 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
988
989 #define EH_FRAME_SECTION_NAME "__TEXT"
990 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
991
992 /* Java runtime class list. */
993 #define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
994
995 #undef ASM_PREFERRED_EH_DATA_FORMAT
996 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
997 (((CODE) == 2 && (GLOBAL) == 1) \
998 ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \
999 ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
1000
1001 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
1002 darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
1003
1004 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \
1005 if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \
1006 darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \
1007 goto DONE; \
1008 }
1009
1010 /* Experimentally, putting jump tables in text is faster on SPEC.
1011 Also this is needed for correctness for coalesced functions. */
1012
1013 #ifndef JUMP_TABLES_IN_TEXT_SECTION
1014 #define JUMP_TABLES_IN_TEXT_SECTION 1
1015 #endif
1016
1017 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
1018
1019 #undef TARGET_ASM_NAMED_SECTION
1020 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
1021
1022 #define DARWIN_REGISTER_TARGET_PRAGMAS() \
1023 do { \
1024 c_register_pragma (0, "mark", darwin_pragma_ignore); \
1025 c_register_pragma (0, "options", darwin_pragma_options); \
1026 c_register_pragma (0, "segment", darwin_pragma_ignore); \
1027 c_register_pragma (0, "unused", darwin_pragma_unused); \
1028 } while (0)
1029
1030 #undef ASM_APP_ON
1031 #define ASM_APP_ON ""
1032 #undef ASM_APP_OFF
1033 #define ASM_APP_OFF ""
1034
1035 void darwin_register_frameworks (const char *, const char *, int);
1036 void darwin_register_objc_includes (const char *, const char *, int);
1037 #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
1038 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
1039
1040 void add_framework_path (char *);
1041 #define TARGET_OPTF add_framework_path
1042
1043 #define TARGET_POSIX_IO
1044
1045 /* All new versions of Darwin have C99 functions. */
1046 #define TARGET_C99_FUNCTIONS 1
1047
1048 #define WINT_TYPE "int"
1049
1050 #endif /* CONFIG_DARWIN_H */
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