OSDN Git Service

* config/darwin.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Don't allow 0
[pf3gnuchains/gcc-fork.git] / gcc / config / darwin.h
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, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, 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 /* Nonzero if the user has chosen to force sizeof(bool) to be 1
144    by providing the -mone-byte-bool switch.  It would be better
145    to use SUBTARGET_SWITCHES for this instead of SUBTARGET_OPTIONS,
146    but there are no more bits in rs6000 TARGET_SWITCHES.  Note
147    that this switch has no "no-" variant. */
148 extern const char *darwin_one_byte_bool;
149   
150 extern int darwin_fix_and_continue;
151 extern const char *darwin_fix_and_continue_switch;
152
153 #undef SUBTARGET_OPTIONS
154 #define SUBTARGET_OPTIONS \
155   {"one-byte-bool", &darwin_one_byte_bool, N_("Set sizeof(bool) to 1"), 0 }, \
156   {"fix-and-continue", &darwin_fix_and_continue_switch,                 \
157    N_("Generate code suitable for fast turn around debugging"), 0},     \
158   {"no-fix-and-continue", &darwin_fix_and_continue_switch,              \
159    N_("Don't generate code suitable for fast turn around debugging"), 0}
160
161 /* These compiler options take n arguments.  */
162
163 #undef  WORD_SWITCH_TAKES_ARG
164 #define WORD_SWITCH_TAKES_ARG(STR)              \
165   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
166    !strcmp (STR, "Zallowable_client") ? 1 :     \
167    !strcmp (STR, "arch") ? 1 :                  \
168    !strcmp (STR, "arch_only") ? 1 :             \
169    !strcmp (STR, "Zbundle_loader") ? 1 :        \
170    !strcmp (STR, "client_name") ? 1 :           \
171    !strcmp (STR, "compatibility_version") ? 1 : \
172    !strcmp (STR, "current_version") ? 1 :       \
173    !strcmp (STR, "Zdylib_file") ? 1 :           \
174    !strcmp (STR, "Zexported_symbols_list") ? 1 : \
175    !strcmp (STR, "Zimage_base") ? 1 :           \
176    !strcmp (STR, "Zinit") ? 1 :                 \
177    !strcmp (STR, "Zinstall_name") ? 1 :         \
178    !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
179    !strcmp (STR, "Zmultiply_defined") ? 1 :     \
180    !strcmp (STR, "precomp-trustfile") ? 1 :     \
181    !strcmp (STR, "read_only_relocs") ? 1 :      \
182    !strcmp (STR, "sectcreate") ? 3 :            \
183    !strcmp (STR, "sectorder") ? 3 :             \
184    !strcmp (STR, "Zsegaddr") ? 2 :              \
185    !strcmp (STR, "Zsegs_read_only_addr") ? 1 :  \
186    !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
187    !strcmp (STR, "Zseg_addr_table") ? 1 :       \
188    !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
189    !strcmp (STR, "seg1addr") ? 1 :              \
190    !strcmp (STR, "segprot") ? 3 :               \
191    !strcmp (STR, "sub_library") ? 1 :           \
192    !strcmp (STR, "sub_umbrella") ? 1 :          \
193    !strcmp (STR, "umbrella") ? 1 :              \
194    !strcmp (STR, "undefined") ? 1 :             \
195    !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
196    !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
197    !strcmp (STR, "pagezero_size") ? 1 :         \
198    !strcmp (STR, "segs_read_only_addr") ? 1 :   \
199    !strcmp (STR, "segs_read_write_addr") ? 1 :  \
200    !strcmp (STR, "sectalign") ? 3 :             \
201    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
202    !strcmp (STR, "segcreate") ? 3 :             \
203    !strcmp (STR, "dylinker_install_name") ? 1 : \
204    0)
205
206 /* Machine dependent cpp options.  __APPLE_CC__ is defined as the
207    Apple include files expect it to be defined and won't work if it
208    isn't.  */
209
210 #undef  CPP_SPEC
211 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\
212     -D__APPLE_CC__=1"
213
214 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
215    precomp, libtool, and fat build additions.  Also we
216    don't specify a second %G after %L because libSystem is
217    self-contained and doesn't need to link against libgcc.a.  */
218 /* In general, random Darwin linker flags should go into LINK_SPEC
219    instead of LINK_COMMAND_SPEC.  The command spec is better for
220    specifying the handling of options understood by generic Unix
221    linkers, and for positional arguments like libraries.  */
222 #define LINK_COMMAND_SPEC "\
223 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
224     %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
225     %l %X %{d} %{s} %{t} %{Z} \
226     %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
227     %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
228     %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
229     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
230     %{!nostdlib:%{!nodefaultlibs:%G %L}} \
231     %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
232
233 /* Please keep the random linker options in alphabetical order (modulo
234    'Z' and 'no' prefixes).  Options that can only go to one of libtool
235    or ld must be listed twice, under both !Zdynamiclib and
236    Zdynamiclib, with one of the cases reporting an error.  */
237 /* Note that options taking arguments may appear multiple times on a
238    command line with different arguments each time, so put a * after
239    their names so all of them get passed.  */
240 #define LINK_SPEC  \
241   "%{static}%{!static:-dynamic} \
242    %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}\
243    %{!Zdynamiclib: \
244      %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \
245      %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \
246      %{Zbundle:-bundle} \
247      %{Zbundle_loader*:-bundle_loader %*} \
248      %{client_name*} \
249      %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
250 } \
251      %{current_version*:%e-current_version only allowed with -dynamiclib} \
252      %{Zforce_flat_namespace:-force_flat_namespace} \
253      %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
254      %{keep_private_externs} \
255      %{private_bundle} \
256     } \
257    %{Zdynamiclib: \
258      %{Zbundle:%e-bundle not allowed with -dynamiclib} \
259      %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
260      %{client_name*:%e-client_name not allowed with -dynamiclib} \
261      %{compatibility_version*} \
262      %{current_version*} \
263      %{Zforce_cpusubtype_ALL:-arch_only %(darwin_arch)} \
264      %{!Zforce_cpusubtype_ALL: -arch_only %(darwin_subarch)} \
265      %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
266      %{Zinstall_name*:-install_name %*} \
267      %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
268      %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
269     } \
270    %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
271    %{Zallowable_client*:-allowable_client %*} \
272    %{Zbind_at_load:-bind_at_load} \
273    %{Zarch_errors_fatal:-arch_errors_fatal} \
274    %{Zdead_strip:-dead_strip} \
275    %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
276    %{Zdylib_file*:-dylib_file %*} \
277    %{Zdynamic:-dynamic}\
278    %{Zexported_symbols_list*:-exported_symbols_list %*} \
279    %{Zflat_namespace:-flat_namespace} \
280    %{headerpad_max_install_names*} \
281    %{Zimage_base*:-image_base %*} \
282    %{Zinit*:-init %*} \
283    %{nomultidefs} \
284    %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
285    %{Zmultiply_defined*:-multiply_defined %*} \
286    %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
287    %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
288    %{read_only_relocs} \
289    %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
290    %{Zsegaddr*:-segaddr %*} \
291    %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
292    %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
293    %{Zseg_addr_table*: -seg_addr_table %*} \
294    %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
295    %{sub_library*} %{sub_umbrella*} \
296    %{twolevel_namespace} %{twolevel_namespace_hints} \
297    %{umbrella*} \
298    %{undefined*} \
299    %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
300    %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
301    %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \
302    %{X} \
303    %{y*} \
304    %{w} \
305    %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \
306    %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
307    %{whatsloaded} %{dylinker_install_name*} \
308    %{dylinker} %{Mach} "
309
310
311 /* Machine dependent libraries but do not redefine it if we already on 7.0 and
312    above as it needs to link with libmx also.  */
313
314 #ifndef LIB_SPEC
315 #define LIB_SPEC "%{!static:-lSystem}"
316 #endif
317
318 /* -dynamiclib implies -shared-libgcc just like -shared would on linux.  */
319 #define REAL_LIBGCC_SPEC \
320    "%{static|static-libgcc:-lgcc -lgcc_eh}\
321     %{!static:%{!static-libgcc:\
322       %{!Zdynamiclib:%{!shared-libgcc:-lgcc -lgcc_eh}\
323       %{shared-libgcc:-lgcc_s -lgcc}} %{Zdynamiclib:-lgcc_s -lgcc}}}"
324
325 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
326 /* We don't want anything to do with crt2.o in the 64-bit case;
327    testing the PowerPC-specific -m64 flag here is a little irregular,
328    but it's overkill to make copies of this spec for each target
329    arch.  */
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 %{!m64: crt2.o%s}}}}} \
338                 %{!pg:%{static:-lcrt0.o} \
339                       %{!static:%{object:-lcrt0.o} \
340                                 %{!object:%{preload:-lcrt0.o} \
341                                   %{!preload:-lcrt1.o %{!m64: crt2.o%s}}}}}}}"
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 ("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            fputs (&xname[1], FILE);                                          \
555          }                                                                   \
556        else if (xname[0] == '+' || xname[0] == '-')                          \
557          fprintf (FILE, "\"%s\"", xname);                                    \
558        else if (!strncmp (xname, "_OBJC_", 6))                               \
559          fprintf (FILE, "L%s", xname);                                       \
560        else if (!strncmp (xname, ".objc_class_name_", 17))                   \
561          fprintf (FILE, "%s", xname);                                        \
562        else                                                                  \
563          asm_fprintf (FILE, "%U%s", xname);                                  \
564   } while (0)
565
566 /* Output before executable code.  */
567 #undef TEXT_SECTION_ASM_OP
568 #define TEXT_SECTION_ASM_OP "\t.text"
569
570 /* Output before writable data.  */
571
572 #undef DATA_SECTION_ASM_OP
573 #define DATA_SECTION_ASM_OP "\t.data"
574
575 #undef  ALIGN_ASM_OP
576 #define ALIGN_ASM_OP            ".align"
577
578 #undef  ASM_OUTPUT_ALIGN
579 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
580   if ((LOG) != 0)                       \
581     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
582
583 /* Ensure correct alignment of bss data.  */
584
585 #undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL                                   
586 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \
587   do {                                                                  \
588     unsigned HOST_WIDE_INT _new_size = SIZE;                            \
589     fputs (".lcomm ", (FILE));                                          \
590     assemble_name ((FILE), (NAME));                                     \
591     if (_new_size == 0) _new_size = 1;                                  \
592     fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_size, \
593              floor_log2 ((ALIGN) / BITS_PER_UNIT));                     \
594     if ((DECL) && ((TREE_STATIC (DECL)                                  \
595          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
596         || DECL_INITIAL (DECL)))                                        \
597       {                                                                 \
598         (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
599         machopic_define_symbol (DECL_RTL (DECL));                       \
600       }                                                                 \
601   } while (0)
602
603 /* The maximum alignment which the object file format can support.
604    For Mach-O, this is 2^15.  */
605
606 #undef  MAX_OFILE_ALIGNMENT
607 #define MAX_OFILE_ALIGNMENT 0x8000
608
609 /* Create new Mach-O sections.  */
610
611 #undef  SECTION_FUNCTION
612 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)            \
613 extern void FUNCTION (void);                                            \
614 void                                                                    \
615 FUNCTION (void)                                                         \
616 {                                                                       \
617   if (in_section != SECTION)                                            \
618     {                                                                   \
619       if (OBJC)                                                         \
620         objc_section_init ();                                           \
621       if (asm_out_file)                                                 \
622         fputs ("\t" DIRECTIVE "\n", asm_out_file);                      \
623       in_section = SECTION;                                             \
624     }                                                                   \
625 }                                                                       \
626
627 /* Darwin uses many types of special sections.  */
628
629 #undef  EXTRA_SECTIONS
630 #define EXTRA_SECTIONS                                                  \
631   in_text_coal, in_text_unlikely, in_text_unlikely_coal,                \
632   in_const, in_const_data, in_cstring, in_literal4, in_literal8,        \
633   in_const_coal, in_const_data_coal, in_data_coal,                      \
634   in_constructor, in_destructor, in_mod_init, in_mod_term,              \
635   in_objc_class, in_objc_meta_class, in_objc_category,                  \
636   in_objc_class_vars, in_objc_instance_vars,                            \
637   in_objc_cls_meth, in_objc_inst_meth,                                  \
638   in_objc_cat_cls_meth, in_objc_cat_inst_meth,                          \
639   in_objc_selector_refs,                                                \
640   in_objc_selector_fixup,                                               \
641   in_objc_symbols, in_objc_module_info,                                 \
642   in_objc_protocol, in_objc_string_object,                              \
643   in_objc_constant_string_object,                                       \
644   in_objc_image_info,                                                   \
645   in_objc_class_names, in_objc_meth_var_names,                          \
646   in_objc_meth_var_types, in_objc_cls_refs,                             \
647   in_machopic_nl_symbol_ptr,                                            \
648   in_machopic_lazy_symbol_ptr,                                          \
649   in_machopic_symbol_stub,                                              \
650   in_machopic_symbol_stub1,                                             \
651   in_machopic_picsymbol_stub,                                           \
652   in_machopic_picsymbol_stub1,                                          \
653   in_darwin_exception, in_darwin_eh_frame,                              \
654   num_sections
655
656 #undef  EXTRA_SECTION_FUNCTIONS
657 #define EXTRA_SECTION_FUNCTIONS                                 \
658 static void objc_section_init (void);                           \
659 SECTION_FUNCTION (text_coal_section,                            \
660                   in_text_coal,                                 \
661                   ".section __TEXT,__textcoal_nt,coalesced,"    \
662                     "pure_instructions", 0)                     \
663 SECTION_FUNCTION (text_unlikely_section,                        \
664                   in_text_unlikely,                             \
665                   ".section __TEXT,__text_unlikely,coalesced,"  \
666                     "pure_instructions", 0)                     \
667 SECTION_FUNCTION (text_unlikely_coal_section,                   \
668                   in_text_unlikely_coal,                        \
669                   ".section __TEXT,__text_unlikely_coal,"       \
670                     "coalesced,pure_instructions", 0)           \
671 SECTION_FUNCTION (const_section,                                \
672                   in_const,                                     \
673                   ".const", 0)                                  \
674 SECTION_FUNCTION (const_coal_section,                           \
675                   in_const_coal,                                \
676                   ".section __TEXT,__const_coal,coalesced", 0)  \
677 SECTION_FUNCTION (const_data_section,                           \
678                   in_const_data,                                \
679                   ".const_data", 0)                             \
680 SECTION_FUNCTION (const_data_coal_section,                      \
681                   in_const_data_coal,                           \
682                   ".section __DATA,__const_coal,coalesced", 0)  \
683 SECTION_FUNCTION (data_coal_section,                            \
684                   in_data_coal,                                 \
685                   ".section __DATA,__datacoal_nt,coalesced", 0) \
686 SECTION_FUNCTION (cstring_section,                              \
687                   in_cstring,                                   \
688                   ".cstring", 0)                                \
689 SECTION_FUNCTION (literal4_section,                             \
690                   in_literal4,                                  \
691                   ".literal4", 0)                               \
692 SECTION_FUNCTION (literal8_section,                             \
693                   in_literal8,                                  \
694                   ".literal8", 0)                               \
695 SECTION_FUNCTION (constructor_section,                          \
696                   in_constructor,                               \
697                   ".constructor", 0)                            \
698 SECTION_FUNCTION (mod_init_section,                             \
699                   in_mod_init,                                  \
700                   ".mod_init_func", 0)                          \
701 SECTION_FUNCTION (mod_term_section,                             \
702                   in_mod_term,                                  \
703                   ".mod_term_func", 0)                          \
704 SECTION_FUNCTION (destructor_section,                           \
705                   in_destructor,                                \
706                   ".destructor", 0)                             \
707 SECTION_FUNCTION (objc_class_section,                           \
708                   in_objc_class,                                \
709                   ".objc_class", 1)                             \
710 SECTION_FUNCTION (objc_meta_class_section,                      \
711                   in_objc_meta_class,                           \
712                   ".objc_meta_class", 1)                        \
713 SECTION_FUNCTION (objc_category_section,                        \
714                   in_objc_category,                             \
715                 ".objc_category", 1)                            \
716 SECTION_FUNCTION (objc_class_vars_section,                      \
717                   in_objc_class_vars,                           \
718                   ".objc_class_vars", 1)                        \
719 SECTION_FUNCTION (objc_instance_vars_section,                   \
720                   in_objc_instance_vars,                        \
721                   ".objc_instance_vars", 1)                     \
722 SECTION_FUNCTION (objc_cls_meth_section,                        \
723                   in_objc_cls_meth,                             \
724                   ".objc_cls_meth", 1)                          \
725 SECTION_FUNCTION (objc_inst_meth_section,                       \
726                   in_objc_inst_meth,                            \
727                   ".objc_inst_meth", 1)                         \
728 SECTION_FUNCTION (objc_cat_cls_meth_section,                    \
729                   in_objc_cat_cls_meth,                         \
730                   ".objc_cat_cls_meth", 1)                      \
731 SECTION_FUNCTION (objc_cat_inst_meth_section,                   \
732                   in_objc_cat_inst_meth,                        \
733                   ".objc_cat_inst_meth", 1)                     \
734 SECTION_FUNCTION (objc_selector_refs_section,                   \
735                   in_objc_selector_refs,                        \
736                   ".objc_message_refs", 1)                      \
737 SECTION_FUNCTION (objc_selector_fixup_section,                               \
738                   in_objc_selector_fixup,                                    \
739                   ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1) \
740 SECTION_FUNCTION (objc_symbols_section,                                 \
741                   in_objc_symbols,                                      \
742                   ".objc_symbols", 1)                                   \
743 SECTION_FUNCTION (objc_module_info_section,                             \
744                   in_objc_module_info,                                  \
745                   ".objc_module_info", 1)                               \
746 SECTION_FUNCTION (objc_protocol_section,                                \
747                   in_objc_protocol,                                     \
748                   ".objc_protocol", 1)                                  \
749 SECTION_FUNCTION (objc_string_object_section,                           \
750                   in_objc_string_object,                                \
751                   ".objc_string_object", 1)                             \
752 SECTION_FUNCTION (objc_constant_string_object_section,                  \
753                   in_objc_constant_string_object,                       \
754                   ".section __OBJC, __cstring_object, regular, "        \
755                     "no_dead_strip", 1)                                 \
756 /* Fix-and-Continue image marker.  */                                   \
757 SECTION_FUNCTION (objc_image_info_section,                              \
758                   in_objc_image_info,                                   \
759                   ".section __OBJC, __image_info, regular, "            \
760                     "no_dead_strip", 1)                                 \
761 SECTION_FUNCTION (objc_class_names_section,                             \
762                 in_objc_class_names,                                    \
763                 ".objc_class_names", 1)                                 \
764 SECTION_FUNCTION (objc_meth_var_names_section,                          \
765                 in_objc_meth_var_names,                                 \
766                 ".objc_meth_var_names", 1)                              \
767 SECTION_FUNCTION (objc_meth_var_types_section,                          \
768                 in_objc_meth_var_types,                                 \
769                 ".objc_meth_var_types", 1)                              \
770 SECTION_FUNCTION (objc_cls_refs_section,                                \
771                 in_objc_cls_refs,                                       \
772                 ".objc_cls_refs", 1)                                    \
773 \
774 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section,                     \
775                 in_machopic_lazy_symbol_ptr,                            \
776                 ".lazy_symbol_pointer", 0)                              \
777 SECTION_FUNCTION (machopic_nl_symbol_ptr_section,                       \
778                 in_machopic_nl_symbol_ptr,                              \
779                 ".non_lazy_symbol_pointer", 0)                          \
780 SECTION_FUNCTION (machopic_symbol_stub_section,                         \
781                 in_machopic_symbol_stub,                                \
782                 ".symbol_stub", 0)                                      \
783 SECTION_FUNCTION (machopic_symbol_stub1_section,                        \
784                 in_machopic_symbol_stub1,                               \
785                 ".section __TEXT,__symbol_stub1,symbol_stubs,"          \
786                   "pure_instructions,16", 0)                            \
787 SECTION_FUNCTION (machopic_picsymbol_stub_section,                      \
788                 in_machopic_picsymbol_stub,                             \
789                 ".picsymbol_stub", 0)                                   \
790 SECTION_FUNCTION (machopic_picsymbol_stub1_section,                     \
791                 in_machopic_picsymbol_stub1,                            \
792                 ".section __TEXT,__picsymbolstub1,symbol_stubs,"        \
793                   "pure_instructions,32", 0)                            \
794 SECTION_FUNCTION (darwin_exception_section,                             \
795                 in_darwin_exception,                                    \
796                 ".section __DATA,__gcc_except_tab", 0)                  \
797 SECTION_FUNCTION (darwin_eh_frame_section,                              \
798                 in_darwin_eh_frame,                                     \
799                 ".section " EH_FRAME_SECTION_NAME ",__eh_frame"         \
800                   EH_FRAME_SECTION_ATTR, 0)                             \
801 \
802 static void                                     \
803 objc_section_init (void)                        \
804 {                                               \
805   static int been_here = 0;                     \
806                                                 \
807   if (been_here == 0)                           \
808     {                                           \
809       been_here = 1;                            \
810           /* written, cold -> hot */            \
811       objc_cat_cls_meth_section ();             \
812       objc_cat_inst_meth_section ();            \
813       objc_string_object_section ();            \
814       objc_constant_string_object_section ();   \
815       objc_selector_refs_section ();            \
816       objc_selector_fixup_section ();           \
817       objc_cls_refs_section ();                 \
818       objc_class_section ();                    \
819       objc_meta_class_section ();               \
820           /* shared, hot -> cold */             \
821       objc_cls_meth_section ();                 \
822       objc_inst_meth_section ();                \
823       objc_protocol_section ();                 \
824       objc_class_names_section ();              \
825       objc_meth_var_types_section ();           \
826       objc_meth_var_names_section ();           \
827       objc_category_section ();                 \
828       objc_class_vars_section ();               \
829       objc_instance_vars_section ();            \
830       objc_module_info_section ();              \
831       objc_symbols_section ();                  \
832     }                                           \
833 }
834
835 #define READONLY_DATA_SECTION const_section
836
837 #undef  TARGET_ASM_SELECT_SECTION
838 #define TARGET_ASM_SELECT_SECTION machopic_select_section
839 #define USE_SELECT_SECTION_FOR_FUNCTIONS
840
841 #undef  TARGET_ASM_SELECT_RTX_SECTION
842 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
843 #undef  TARGET_ASM_UNIQUE_SECTION
844 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
845 #undef  TARGET_ASM_FUNCTION_RODATA_SECTION
846 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
847
848
849 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \
850     do {                                                                \
851          if (FILE) {                                                    \
852            if (MACHOPIC_INDIRECT)                                       \
853              fprintf (FILE, "\t.lazy_reference ");                      \
854            else                                                         \
855              fprintf (FILE, "\t.reference ");                           \
856            assemble_name (FILE, NAME);                                  \
857            fprintf (FILE, "\n");                                        \
858          }                                                              \
859        } while (0)
860
861 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \
862     do {                                                                \
863          if (FILE) {                                                    \
864            fprintf (FILE, "\t");                                        \
865            assemble_name (FILE, NAME);                                  \
866            fprintf (FILE, "=0\n");                                      \
867            (*targetm.asm_out.globalize_label) (FILE, NAME);             \
868          }                                                              \
869        } while (0)
870
871 /* Globalizing directive for a label.  */
872 #define GLOBAL_ASM_OP ".globl "
873 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
874
875 /* Emit an assembler directive to set visibility for a symbol.  Used
876    to support visibility attribute and Darwin's private extern
877    feature.  */
878 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
879 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
880
881 /* Extra attributes for Darwin.  */
882 #define SUBTARGET_ATTRIBUTE_TABLE                                            \
883   /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
884   { "weak_import", 0, 0, true, false, false,                                 \
885     darwin_handle_weak_import_attribute }
886
887 #undef ASM_GENERATE_INTERNAL_LABEL
888 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
889   sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
890
891 #undef TARGET_ASM_MARK_DECL_PRESERVED
892 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
893
894 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
895    MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
896    variable has been defined in this translation unit.  */
897
898 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
899 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
900
901 /* Set on a symbol to indicate when fix-and-continue style code
902    generation is being used and the symbol refers to a static symbol
903    that should be rebound from new instances of a translation unit to
904    the original instance of the data.  */
905
906 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
907
908 /* Symbolic names for various things we might know about a symbol.  */
909
910 enum machopic_addr_class {
911   MACHOPIC_UNDEFINED,
912   MACHOPIC_DEFINED_DATA,
913   MACHOPIC_UNDEFINED_DATA,
914   MACHOPIC_DEFINED_FUNCTION,
915   MACHOPIC_UNDEFINED_FUNCTION
916 };
917
918 /* Macros defining the various PIC cases.  */
919
920 #define MACHO_DYNAMIC_NO_PIC_P  (TARGET_DYNAMIC_NO_PIC)
921 #define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
922 #define MACHOPIC_JUST_INDIRECT  (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
923 #define MACHOPIC_PURE           (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
924
925 #undef TARGET_ENCODE_SECTION_INFO
926 #define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info
927 #undef TARGET_STRIP_NAME_ENCODING
928 #define TARGET_STRIP_NAME_ENCODING  default_strip_name_encoding
929
930 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \
931   do {                                                          \
932     const char *const stub_ = (STUB);                           \
933     char *buffer_ = (BUF);                                      \
934     strcpy (buffer_, stub_);                                    \
935     if (stub_[0] == '"')                                        \
936       {                                                         \
937         strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \
938       }                                                         \
939     else                                                        \
940       {                                                         \
941         strcpy (buffer_ + (STUB_LENGTH), "_binder");            \
942       }                                                         \
943   } while (0)
944
945 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)    \
946   do {                                                          \
947     const char *const symbol_ = (SYMBOL);                       \
948     char *buffer_ = (BUF);                                      \
949     if (name_needs_quotes (symbol_) && symbol_[0] != '"')       \
950       {                                                         \
951           sprintf (buffer_, "\"%s\"", symbol_);                 \
952       }                                                         \
953     else                                                        \
954       {                                                         \
955         strcpy (buffer_, symbol_);                              \
956       }                                                         \
957   } while (0)
958
959 /* Given a symbol name string, create the lazy pointer version
960    of the symbol name.  */
961
962 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)  \
963   do {                                                          \
964     const char *symbol_ = (SYMBOL);                             \
965     char *buffer_ = (BUF);                                      \
966     if (symbol_[0] == '"')                                      \
967       {                                                         \
968         strcpy (buffer_, "\"L");                                \
969         strcpy (buffer_ + 2, symbol_ + 1);                      \
970         strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\"");      \
971       }                                                         \
972     else if (name_needs_quotes (symbol_))                       \
973       {                                                         \
974         strcpy (buffer_, "\"L");                                \
975         strcpy (buffer_ + 2, symbol_);                          \
976         strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\"");  \
977       }                                                         \
978     else                                                        \
979       {                                                         \
980         strcpy (buffer_, "L");                                  \
981         strcpy (buffer_ + 1, symbol_);                          \
982         strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr");    \
983       }                                                         \
984   } while (0)
985
986 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
987
988 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
989
990 #define EH_FRAME_SECTION_NAME   "__TEXT"
991 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
992
993 /* Java runtime class list.  */
994 #define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
995
996 #undef ASM_PREFERRED_EH_DATA_FORMAT
997 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
998   (((CODE) == 2 && (GLOBAL) == 1) \
999    ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \
1000      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
1001
1002 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
1003   darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
1004
1005 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)     \
1006       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                            \
1007         darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR);                                     \
1008         goto DONE;                                                                      \
1009       }
1010
1011 /* Experimentally, putting jump tables in text is faster on SPEC.
1012    Also this is needed for correctness for coalesced functions.  */
1013
1014 #ifndef JUMP_TABLES_IN_TEXT_SECTION
1015 #define JUMP_TABLES_IN_TEXT_SECTION 1
1016 #endif
1017
1018 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
1019
1020 #undef TARGET_ASM_NAMED_SECTION
1021 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
1022
1023 #define DARWIN_REGISTER_TARGET_PRAGMAS()                        \
1024   do {                                                          \
1025     c_register_pragma (0, "mark", darwin_pragma_ignore);        \
1026     c_register_pragma (0, "options", darwin_pragma_options);    \
1027     c_register_pragma (0, "segment", darwin_pragma_ignore);     \
1028     c_register_pragma (0, "unused", darwin_pragma_unused);      \
1029   } while (0)
1030
1031 #undef ASM_APP_ON
1032 #define ASM_APP_ON ""
1033 #undef ASM_APP_OFF
1034 #define ASM_APP_OFF ""
1035
1036 void darwin_register_frameworks (const char *, const char *, int);
1037 void darwin_register_objc_includes (const char *, const char *, int);
1038 #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
1039 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
1040
1041 void add_framework_path (char *);
1042 #define TARGET_OPTF add_framework_path
1043
1044 #define TARGET_HAS_F_SETLKW
1045
1046 /* Darwin before 7.0 does not have C99 functions.   */
1047 #ifndef TARGET_C99_FUNCTIONS
1048 #define TARGET_C99_FUNCTIONS 0
1049 #endif
1050
1051 #define WINT_TYPE "int"
1052
1053 #endif /* CONFIG_DARWIN_H */