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    Free Software Foundation, Inc.
   4    Contributed by Apple Computer Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef CONFIG_DARWIN_H
  24 #define CONFIG_DARWIN_H
  25
  26 /* The definitions in this file are common to all processor types
  27    running Darwin, which is the kernel for Mac OS X.  Darwin is
  28    basically a BSD user layer laid over a Mach kernel, then evolved
  29    for many years (at NeXT) in parallel with other Unix systems.  So
  30    while the runtime is a somewhat idiosyncratic Mach-based thing,
  31    other definitions look like they would for a BSD variant.  */
  32
  33 /* Although NeXT ran on many different architectures, as of Jan 2001
  34    the only supported Darwin targets are PowerPC and x86.  */
  35
  36 /* One of Darwin's NeXT legacies is the Mach-O format, which is partly
  37    like a.out and partly like COFF, with additional features like
  38    multi-architecture binary support.  */
  39
  40 #define OBJECT_FORMAT_MACHO
  41
  42 /* Suppress g++ attempt to link in the math library automatically. */
  43 #define MATH_LIBRARY ""
  44
  45 /* We have atexit.  */
  46
  47 #define HAVE_ATEXIT
  48
  49 /* Define an empty body for the function do_global_dtors() in libgcc2.c.  */
  50
  51 #define DO_GLOBAL_DTORS_BODY
  52
  53 /* The string value for __SIZE_TYPE__.  */
  54
  55 #ifndef SIZE_TYPE
  56 #define SIZE_TYPE "long unsigned int"
  57 #endif
  58
  59 /* Type used for ptrdiff_t, as a string used in a declaration.  */
  60
  61 #undef  PTRDIFF_TYPE
  62 #define PTRDIFF_TYPE "int"
  63
  64 /* wchar_t is int.  */
  65
  66 #undef  WCHAR_TYPE
  67 #define WCHAR_TYPE "int"
  68 #undef  WCHAR_TYPE_SIZE
  69 #define WCHAR_TYPE_SIZE 32
  70
  71 /* Default to using the NeXT-style runtime, since that's what is
  72    pre-installed on Darwin systems.  */
  73
  74 #define NEXT_OBJC_RUNTIME
  75
  76 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
  77    we want to retain compatibility with older gcc versions.  */
  78
  79 #undef  DEFAULT_PCC_STRUCT_RETURN
  80 #define DEFAULT_PCC_STRUCT_RETURN 0
  81
  82 /* This table intercepts weirdo options whose names would interfere
  83    with normal driver conventions, and either translates them into
  84    standardly-named options, or adds a 'Z' so that they can get to
  85    specs processing without interference.
  86
  87    Do not expand a linker option to "-Xlinker -<option>", since that
  88    forfeits the ability to control via spec strings later.  However,
  89    as a special exception, do this translation with -filelist, because
  90    otherwise the driver will think there are no input files and quit.
  91    (The alternative would be to hack the driver to recognize -filelist
  92    specially, but it's simpler to use the translation table.)
  93
  94    Note that an option name with a prefix that matches another option
  95    name, that also takes an argument, needs to be modified so the
  96    prefix is different, otherwise a '*' after the shorter option will
  97    match with the longer one.
  98
  99    The SUBTARGET_OPTION_TRANSLATE_TABLE macro, which _must_ be defined
 100    in gcc/config/{i386,rs6000}/darwin.h, should contain any additional
 101    command-line option translations specific to the particular target
 102    architecture.  */
 103
 104 #define TARGET_OPTION_TRANSLATE_TABLE \
 105   { "-all_load", "-Zall_load" },  \
 106   { "-allowable_client", "-Zallowable_client" },  \
 107   { "-arch_errors_fatal", "-Zarch_errors_fatal" },  \
 108   { "-bind_at_load", "-Zbind_at_load" },  \
 109   { "-bundle", "-Zbundle" },  \
 110   { "-bundle_loader", "-Zbundle_loader" },  \
 111   { "-weak_reference_mismatches", "-Zweak_reference_mismatches" },  \
 112   { "-dependency-file", "-MF" }, \
 113   { "-dylib_file", "-Zdylib_file" }, \
 114   { "-dynamic", "-Zdynamic" },  \
 115   { "-dynamiclib", "-Zdynamiclib" },  \
 116   { "-exported_symbols_list", "-Zexported_symbols_list" },  \
 117   { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
 118   { "-filelist", "-Xlinker -filelist -Xlinker" },  \
 119   { "-framework", "-Xlinker -framework -Xlinker" },  \
 120   { "-flat_namespace", "-Zflat_namespace" },  \
 121   { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" },  \
 122   { "-force_flat_namespace", "-Zforce_flat_namespace" },  \
 123   { "-image_base", "-Zimage_base" },  \
 124   { "-init", "-Zinit" },  \
 125   { "-install_name", "-Zinstall_name" },  \
 126   { "-multiply_defined_unused", "-Zmultiplydefinedunused" },  \
 127   { "-multiply_defined", "-Zmultiply_defined" },  \
 128   { "-multi_module", "-Zmulti_module" },  \
 129   { "-static", "-static -Wa,-static" },  \
 130   { "-single_module", "-Zsingle_module" },  \
 131   { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
 132   SUBTARGET_OPTION_TRANSLATE_TABLE
 133
 134 /* These compiler options take n arguments.  */
 135
 136 #undef  WORD_SWITCH_TAKES_ARG
 137 #define WORD_SWITCH_TAKES_ARG(STR)              \
 138   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
 139    !strcmp (STR, "Zallowable_client") ? 1 :     \
 140    !strcmp (STR, "arch") ? 1 :                  \
 141    !strcmp (STR, "arch_only") ? 1 :             \
 142    !strcmp (STR, "Zbundle_loader") ? 1 :        \
 143    !strcmp (STR, "client_name") ? 1 :           \
 144    !strcmp (STR, "compatibility_version") ? 1 : \
 145    !strcmp (STR, "current_version") ? 1 :       \
 146    !strcmp (STR, "Zdylib_file") ? 1 :           \
 147    !strcmp (STR, "Zexported_symbols_list") ? 1 : \
 148    !strcmp (STR, "Zimage_base") ? 1 :           \
 149    !strcmp (STR, "Zinit") ? 1 :                 \
 150    !strcmp (STR, "Zinstall_name") ? 1 :         \
 151    !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
 152    !strcmp (STR, "Zmultiply_defined") ? 1 :     \
 153    !strcmp (STR, "precomp-trustfile") ? 1 :     \
 154    !strcmp (STR, "read_only_relocs") ? 1 :      \
 155    !strcmp (STR, "sectcreate") ? 3 :            \
 156    !strcmp (STR, "sectorder") ? 3 :             \
 157    !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
 158    !strcmp (STR, "seg1addr") ? 1 :              \
 159    !strcmp (STR, "segprot") ? 3 :               \
 160    !strcmp (STR, "seg_addr_table") ? 1 :        \
 161    !strcmp (STR, "sub_library") ? 1 :           \
 162    !strcmp (STR, "sub_umbrella") ? 1 :          \
 163    !strcmp (STR, "umbrella") ? 1 :              \
 164    !strcmp (STR, "undefined") ? 1 :             \
 165    !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
 166    !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
 167    !strcmp (STR, "pagezero_size") ? 1 :         \
 168    !strcmp (STR, "segs_read_only_addr") ? 1 :   \
 169    !strcmp (STR, "segs_read_write_addr") ? 1 :  \
 170    !strcmp (STR, "sectalign") ? 3 :             \
 171    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
 172    !strcmp (STR, "segcreate") ? 3 :             \
 173    !strcmp (STR, "dylinker_install_name") ? 1 : \
 174    0)
 175
 176 /* Machine dependent cpp options.  __APPLE_CC__ is defined as the
 177    Apple include files expect it to be defined and won't work if it
 178    isn't.  */
 179
 180 #undef  CPP_SPEC
 181 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\
 182     -D__APPLE_CC__=1"
 183
 184 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
 185    precomp, libtool, and fat build additions.  Also we
 186    don't specify a second %G after %L because libSystem is
 187    self-contained and doesn't need to link against libgcc.a.  */
 188 /* In general, random Darwin linker flags should go into LINK_SPEC
 189    instead of LINK_COMMAND_SPEC.  The command spec is better for
 190    specifying the handling of options understood by generic Unix
 191    linkers, and for positional arguments like libraries.  */
 192 #define LINK_COMMAND_SPEC "\
 193 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
 194     %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
 195     %{!Zdynamiclib:-arch %(darwin_arch)} \
 196     %{Zdynamiclib:-arch_only %(darwin_arch)} \
 197     %l %X %{d} %{s} %{t} %{Z} \
 198     %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
 199     %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
 200     %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
 201     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov} \
 202     %{!nostdlib:%{!nodefaultlibs:%G %L}} \
 203     %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
 204
 205 /* Please keep the random linker options in alphabetical order (modulo
 206    'Z' and 'no' prefixes).  Options that can only go to one of libtool
 207    or ld must be listed twice, under both !Zdynamiclib and
 208    Zdynamiclib, with one of the cases reporting an error.  */
 209 /* Note that options taking arguments may appear multiple times on a
 210    command line with different arguments each time, so put a * after
 211    their names so all of them get passed.  */
 212 #define LINK_SPEC  \
 213   "%{static}%{!static:-dynamic} \
 214    %{!Zdynamiclib: \
 215      %{Zbundle:-bundle} \
 216      %{Zbundle_loader*:-bundle_loader %*} \
 217      %{client_name*} \
 218      %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
 219 } \
 220      %{current_version*:%e-current_version only allowed with -dynamiclib} \
 221      %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
 222      %{Zforce_flat_namespace:-force_flat_namespace} \
 223      %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
 224      %{keep_private_externs} \
 225      %{private_bundle} \
 226     } \
 227    %{Zdynamiclib: \
 228      %{Zbundle:%e-bundle not allowed with -dynamiclib} \
 229      %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
 230      %{client_name*:%e-client_name not allowed with -dynamiclib} \
 231      %{compatibility_version*} \
 232      %{current_version*} \
 233      %{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
 234      %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
 235      %{Zinstall_name*:-install_name %*} \
 236      %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
 237      %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
 238     } \
 239    %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
 240    %{Zallowable_client*:-allowable_client %*} \
 241    %{Zbind_at_load:-bind_at_load} \
 242    %{Zarch_errors_fatal:-arch_errors_fatal} \
 243    %{Zdylib_file*:-dylib_file %*} \
 244    %{Zdynamic:-dynamic}\
 245    %{Zexported_symbols_list*:-exported_symbols_list %*} \
 246    %{Zflat_namespace:-flat_namespace} \
 247    %{headerpad_max_install_names*} \
 248    %{Zimage_base*:-image_base %*} \
 249    %{Zinit*:-init %*} \
 250    %{nomultidefs} \
 251    %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
 252    %{Zmultiply_defined*:-multiply_defined %*} \
 253    %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
 254    %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
 255    %{read_only_relocs} \
 256    %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} %{seg_addr_table*} \
 257    %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
 258    %{sub_library*} %{sub_umbrella*} \
 259    %{twolevel_namespace} %{twolevel_namespace_hints} \
 260    %{umbrella*} \
 261    %{undefined*} \
 262    %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
 263    %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
 264    %{X} \
 265    %{y*} \
 266    %{w} \
 267    %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \
 268    %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
 269    %{whatsloaded} %{dylinker_install_name*} \
 270    %{dylinker} %{Mach} "
 271
 272
 273 /* Machine dependent libraries but do not redefine it if we already on 7.0 and
 274    above as it needs to link with libmx also.  */
 275
 276 #ifndef LIB_SPEC
 277 #define LIB_SPEC "%{!static:-lSystem}"
 278 #endif
 279
 280 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
 281
 282 #undef  STARTFILE_SPEC
 283 #define STARTFILE_SPEC  \
 284   "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
 285      %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
 286                      %{!static:%{object:-lgcrt0.o} \
 287                                %{!object:%{preload:-lgcrt0.o} \
 288                                  %{!preload:-lgcrt1.o crt2.o%s}}}} \
 289                 %{!pg:%{static:-lcrt0.o} \
 290                       %{!static:%{object:-lcrt0.o} \
 291                                 %{!object:%{preload:-lcrt0.o} \
 292                                   %{!preload:-lcrt1.o crt2.o%s}}}}}}"
 293
 294 /* The native Darwin linker doesn't necessarily place files in the order
 295    that they're specified on the link line.  Thus, it is pointless
 296    to put anything in ENDFILE_SPEC.  */
 297 /* #define ENDFILE_SPEC "" */
 298
 299 /* We use Dbx symbol format.  */
 300
 301 #define DBX_DEBUGGING_INFO 1
 302
 303 /* Also enable Dwarf 2 as an option.  */
 304 #define DWARF2_DEBUGGING_INFO
 305 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
 306
 307 #define DEBUG_FRAME_SECTION   "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
 308 #define DEBUG_INFO_SECTION    "__DWARFA,__debug_info"
 309 #define DEBUG_ABBREV_SECTION  "__DWARFA,__debug_abbrev"
 310 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
 311 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
 312 #define DEBUG_LINE_SECTION    "__DWARFA,__debug_line"
 313 #define DEBUG_LOC_SECTION     "__DWARFA,__debug_loc"
 314 #define DEBUG_PUBNAMES_SECTION        "__DWARFA,__debug_pubnames"
 315 #define DEBUG_STR_SECTION     "__DWARFA,__debug_str"
 316 #define DEBUG_RANGES_SECTION  "__DWARFA,__debug_ranges"
 317
 318 /* When generating stabs debugging, use N_BINCL entries.  */
 319
 320 #define DBX_USE_BINCL
 321
 322 /* There is no limit to the length of stabs strings.  */
 323
 324 #define DBX_CONTIN_LENGTH 0
 325
 326 /* gdb needs a null N_SO at the end of each file for scattered loading.  */
 327
 328 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 329 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 330 do { text_section ();                                                   \
 331      fprintf (FILE,                                                     \
 332               "\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO);   \
 333    } while (0)
 334
 335 /* Making a symbols weak on Darwin requires more than just setting DECL_WEAK. */
 336 #define MAKE_DECL_ONE_ONLY(DECL) darwin_make_decl_one_only (DECL)
 337
 338 /* Representation of linkonce symbols for the MACH-O assembler. Linkonce
 339    symbols must be given a special section *and* must be preceded by a
 340    special assembler directive. */
 341 #define ASM_MAKE_LABEL_LINKONCE(FILE,  NAME)                            \
 342  do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) {       \
 343   fputs (".weak_definition ", FILE); assemble_name (FILE, _x);          \
 344   fputs ("\n", FILE); }} while (0)
 345
 346 /* We support hidden visibility */
 347 #undef TARGET_SUPPORTS_HIDDEN
 348 #define TARGET_SUPPORTS_HIDDEN 1
 349
 350 /* The Darwin linker imposes two limitations on common symbols: they
 351    can't have hidden visibility, and they can't appear in dylibs.  As
 352    a consequence, we should never use common symbols to represent
 353    vague linkage. */
 354 #undef USE_COMMON_FOR_ONE_ONLY
 355 #define USE_COMMON_FOR_ONE_ONLY 0
 356
 357 /* The Darwin linker doesn't want coalesced symbols to appear in
 358    a static archive's table of contents. */
 359 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
 360 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
 361
 362 /* We make exception information linkonce. */
 363 #undef TARGET_USES_WEAK_UNWIND_INFO
 364 #define TARGET_USES_WEAK_UNWIND_INFO 1
 365
 366 /* We need to use a nonlocal label for the start of an EH frame: the
 367    Darwin linker requires that a coalesced section start with a label. */
 368 #undef FRAME_BEGIN_LABEL
 369 #define FRAME_BEGIN_LABEL "EH_frame"
 370
 371 /* Emit a label for the FDE corresponding to DECL.  EMPTY means
 372    emit a label for an empty FDE. */
 373 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
 374
 375 /* Our profiling scheme doesn't LP labels and counter words.  */
 376
 377 #define NO_PROFILE_COUNTERS     1
 378
 379 #undef  INIT_SECTION_ASM_OP
 380 #define INIT_SECTION_ASM_OP
 381
 382 #undef  INVOKE__main
 383
 384 #define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor
 385 #define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor
 386
 387 /* Always prefix with an underscore.  */
 388
 389 #define USER_LABEL_PREFIX "_"
 390
 391 /* Don't output a .file directive.  That is only used by the assembler for
 392    error reporting.  */
 393 #undef  TARGET_ASM_FILE_START_FILE_DIRECTIVE
 394 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
 395
 396 #undef  TARGET_ASM_FILE_END
 397 #define TARGET_ASM_FILE_END darwin_file_end
 398
 399 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
 400   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
 401
 402 /* Give ObjC methods pretty symbol names.  */
 403
 404 #undef  OBJC_GEN_METHOD_LABEL
 405 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 406   do { if (CAT_NAME)                                                    \
 407          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 408                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 409        else                                                             \
 410          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 411                   (CLASS_NAME), (SEL_NAME));                            \
 412      } while (0)
 413
 414 /* The RTTI data (e.g., __ti4name) is common and public (and static),
 415    but it does need to be referenced via indirect PIC data pointers.
 416    The machopic_define_name calls are telling the machopic subsystem
 417    that the name *is* defined in this module, so it doesn't need to
 418    make them indirect.  */
 419
 420 #undef ASM_DECLARE_OBJECT_NAME
 421 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
 422   do {                                                                  \
 423     const char *xname = NAME;                                           \
 424     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 425       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 426     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 427       if ((TREE_STATIC (DECL)                                           \
 428            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 429           || DECL_INITIAL (DECL))                                       \
 430         machopic_define_name (xname);                                   \
 431     if ((TREE_STATIC (DECL)                                             \
 432          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 433         || DECL_INITIAL (DECL))                                         \
 434       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 435     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 436     /* Darwin doesn't support zero-size objects, so give them a \
 437        byte.  */                                                        \
 438     if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0)                   \
 439       assemble_zeros (1);                                               \
 440   } while (0)
 441
 442 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 443   do {                                                                  \
 444     const char *xname = NAME;                                           \
 445     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 446       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 447     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 448       if ((TREE_STATIC (DECL)                                           \
 449            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 450           || DECL_INITIAL (DECL))                                       \
 451         machopic_define_name (xname);                                   \
 452     if ((TREE_STATIC (DECL)                                             \
 453          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 454         || DECL_INITIAL (DECL))                                         \
 455       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 456     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 457   } while (0)
 458
 459 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE)        \
 460   do {                                                          \
 461     ASM_OUTPUT_LABEL (FILE, NAME);                              \
 462     /* Darwin doesn't support zero-size objects, so give them a \
 463        byte.  */                                                \
 464     if ((SIZE) == 0)                                            \
 465       assemble_zeros (1);                                       \
 466   } while (0)
 467
 468 /* Wrap new method names in quotes so the assembler doesn't gag.
 469    Make Objective-C internal symbols local.  */
 470
 471 #undef  ASM_OUTPUT_LABELREF
 472 #define ASM_OUTPUT_LABELREF(FILE,NAME)                                       \
 473   do {                                                                       \
 474        const char *xname = darwin_strip_name_encoding (NAME);                \
 475        if (! strcmp (xname, "<pic base>"))                                   \
 476          machopic_output_function_base_name(FILE);                           \
 477        else if (xname[0] == '&' || xname[0] == '*')                          \
 478          {                                                                   \
 479            int len = strlen (xname);                                         \
 480            if (len > 6 && !strcmp ("$stub", xname + len - 5))                \
 481              machopic_validate_stub_or_non_lazy_ptr (xname, 1);              \
 482            else if (len > 7 && !strcmp ("$stub\"", xname + len - 6))         \
 483              machopic_validate_stub_or_non_lazy_ptr (xname, 1);              \
 484            else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
 485              machopic_validate_stub_or_non_lazy_ptr (xname, 0);              \
 486            fputs (&xname[1], FILE);                                          \
 487          }                                                                   \
 488        else if (xname[0] == '+' || xname[0] == '-')                          \
 489          fprintf (FILE, "\"%s\"", xname);                                    \
 490        else if (!strncmp (xname, "_OBJC_", 6))                               \
 491          fprintf (FILE, "L%s", xname);                                       \
 492        else if (!strncmp (xname, ".objc_class_name_", 17))                   \
 493          fprintf (FILE, "%s", xname);                                        \
 494        else                                                                  \
 495          asm_fprintf (FILE, "%U%s", xname);                                  \
 496   } while (0)
 497
 498 /* Output before executable code.  */
 499 #undef TEXT_SECTION_ASM_OP
 500 #define TEXT_SECTION_ASM_OP ".text"
 501
 502 /* Output before writable data.  */
 503
 504 #undef DATA_SECTION_ASM_OP
 505 #define DATA_SECTION_ASM_OP ".data"
 506
 507 #undef  ALIGN_ASM_OP
 508 #define ALIGN_ASM_OP            ".align"
 509
 510 #undef  ASM_OUTPUT_ALIGN
 511 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 512   if ((LOG) != 0)                       \
 513     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
 514
 515 /* Ensure correct alignment of bss data.  */
 516
 517 #undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL
 518 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \
 519   do {                                                                  \
 520     fputs (".lcomm ", (FILE));                                          \
 521     assemble_name ((FILE), (NAME));                                     \
 522     fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (SIZE),    \
 523              floor_log2 ((ALIGN) / BITS_PER_UNIT));                     \
 524     if ((DECL) && ((TREE_STATIC (DECL)                                  \
 525          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 526         || DECL_INITIAL (DECL)))                                        \
 527       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 528     if ((DECL) && ((TREE_STATIC (DECL)                                  \
 529          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 530         || DECL_INITIAL (DECL)))                                        \
 531       machopic_define_name (NAME);                                      \
 532   } while (0)
 533
 534 /* The maximum alignment which the object file format can support.
 535    For Mach-O, this is 2^15.  */
 536
 537 #undef  MAX_OFILE_ALIGNMENT
 538 #define MAX_OFILE_ALIGNMENT 0x8000
 539
 540 /* Create new Mach-O sections.  */
 541
 542 #undef  SECTION_FUNCTION
 543 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)            \
 544 extern void FUNCTION (void);                                            \
 545 void                                                                    \
 546 FUNCTION (void)                                                         \
 547 {                                                                       \
 548   if (in_section != SECTION)                                            \
 549     {                                                                   \
 550       if (OBJC)                                                         \
 551         objc_section_init ();                                           \
 552       data_section ();                                                  \
 553       if (asm_out_file)                                                 \
 554         fprintf (asm_out_file, "%s\n", DIRECTIVE);                      \
 555       in_section = SECTION;                                             \
 556     }                                                                   \
 557 }                                                                       \
 558
 559 /* Darwin uses many types of special sections.  */
 560
 561 #undef  EXTRA_SECTIONS
 562 #define EXTRA_SECTIONS                                  \
 563   in_const, in_const_data, in_cstring, in_literal4, in_literal8,        \
 564   in_constructor, in_destructor, in_mod_init, in_mod_term,              \
 565   in_objc_class, in_objc_meta_class, in_objc_category,  \
 566   in_objc_class_vars, in_objc_instance_vars,            \
 567   in_objc_cls_meth, in_objc_inst_meth,                  \
 568   in_objc_cat_cls_meth, in_objc_cat_inst_meth,          \
 569   in_objc_selector_refs,                                \
 570   in_objc_selector_fixup,                               \
 571   in_objc_symbols, in_objc_module_info,                 \
 572   in_objc_protocol, in_objc_string_object,              \
 573   in_objc_constant_string_object,                       \
 574   in_objc_image_info,                                   \
 575   in_objc_class_names, in_objc_meth_var_names,          \
 576   in_objc_meth_var_types, in_objc_cls_refs,             \
 577   in_machopic_nl_symbol_ptr,                            \
 578   in_machopic_lazy_symbol_ptr,                          \
 579   in_machopic_symbol_stub,                              \
 580   in_machopic_symbol_stub1,                             \
 581   in_machopic_picsymbol_stub,                           \
 582   in_machopic_picsymbol_stub1,                          \
 583   in_darwin_exception, in_darwin_eh_frame,              \
 584   num_sections
 585
 586 #undef  EXTRA_SECTION_FUNCTIONS
 587 #define EXTRA_SECTION_FUNCTIONS                 \
 588 static void objc_section_init (void);           \
 589 SECTION_FUNCTION (const_section,                \
 590                   in_const,                     \
 591                   ".const", 0)                  \
 592 SECTION_FUNCTION (const_data_section,           \
 593                   in_const_data,                \
 594                   ".const_data", 0)             \
 595 SECTION_FUNCTION (cstring_section,              \
 596                   in_cstring,                   \
 597                   ".cstring", 0)                \
 598 SECTION_FUNCTION (literal4_section,             \
 599                   in_literal4,                  \
 600                   ".literal4", 0)               \
 601 SECTION_FUNCTION (literal8_section,             \
 602                   in_literal8,                  \
 603                   ".literal8", 0)               \
 604 SECTION_FUNCTION (constructor_section,          \
 605                   in_constructor,               \
 606                   ".constructor", 0)            \
 607 SECTION_FUNCTION (mod_init_section,             \
 608                   in_mod_init,                  \
 609                   ".mod_init_func", 0)  \
 610 SECTION_FUNCTION (mod_term_section, \
 611                   in_mod_term,                  \
 612                   ".mod_term_func", 0)  \
 613 SECTION_FUNCTION (destructor_section,           \
 614                   in_destructor,                \
 615                   ".destructor", 0)             \
 616 SECTION_FUNCTION (objc_class_section,           \
 617                   in_objc_class,                \
 618                   ".objc_class", 1)             \
 619 SECTION_FUNCTION (objc_meta_class_section,      \
 620                   in_objc_meta_class,           \
 621                   ".objc_meta_class", 1)        \
 622 SECTION_FUNCTION (objc_category_section,        \
 623                   in_objc_category,             \
 624                 ".objc_category", 1)            \
 625 SECTION_FUNCTION (objc_class_vars_section,      \
 626                   in_objc_class_vars,           \
 627                   ".objc_class_vars", 1)        \
 628 SECTION_FUNCTION (objc_instance_vars_section,   \
 629                   in_objc_instance_vars,        \
 630                   ".objc_instance_vars", 1)     \
 631 SECTION_FUNCTION (objc_cls_meth_section,        \
 632                   in_objc_cls_meth,             \
 633                   ".objc_cls_meth", 1)  \
 634 SECTION_FUNCTION (objc_inst_meth_section,       \
 635                   in_objc_inst_meth,            \
 636                   ".objc_inst_meth", 1) \
 637 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 638                   in_objc_cat_cls_meth,         \
 639                   ".objc_cat_cls_meth", 1)      \
 640 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 641                   in_objc_cat_inst_meth,        \
 642                   ".objc_cat_inst_meth", 1)     \
 643 SECTION_FUNCTION (objc_selector_refs_section,   \
 644                   in_objc_selector_refs,        \
 645                   ".objc_message_refs", 1)      \
 646 SECTION_FUNCTION (objc_selector_fixup_section,  \
 647                   in_objc_selector_fixup,       \
 648                   ".section __OBJC, __sel_fixup", 1)    \
 649 SECTION_FUNCTION (objc_symbols_section,         \
 650                   in_objc_symbols,              \
 651                   ".objc_symbols", 1)   \
 652 SECTION_FUNCTION (objc_module_info_section,     \
 653                   in_objc_module_info,          \
 654                   ".objc_module_info", 1)       \
 655 SECTION_FUNCTION (objc_protocol_section,        \
 656                   in_objc_protocol,             \
 657                   ".objc_protocol", 1)  \
 658 SECTION_FUNCTION (objc_string_object_section,   \
 659                   in_objc_string_object,        \
 660                   ".objc_string_object", 1)     \
 661 SECTION_FUNCTION (objc_constant_string_object_section,  \
 662                   in_objc_constant_string_object,       \
 663                   ".section __OBJC, __cstring_object", 1)       \
 664 /* Fix-and-Continue image marker.  */           \
 665 SECTION_FUNCTION (objc_image_info_section,      \
 666                   in_objc_image_info,           \
 667                   ".section __OBJC, __image_info", 1)   \
 668 SECTION_FUNCTION (objc_class_names_section,     \
 669                 in_objc_class_names,            \
 670                 ".objc_class_names", 1) \
 671 SECTION_FUNCTION (objc_meth_var_names_section,  \
 672                 in_objc_meth_var_names,         \
 673                 ".objc_meth_var_names", 1)      \
 674 SECTION_FUNCTION (objc_meth_var_types_section,  \
 675                 in_objc_meth_var_types,         \
 676                 ".objc_meth_var_types", 1)      \
 677 SECTION_FUNCTION (objc_cls_refs_section,        \
 678                 in_objc_cls_refs,               \
 679                 ".objc_cls_refs", 1)            \
 680                                                 \
 681 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section,     \
 682                 in_machopic_lazy_symbol_ptr,            \
 683                 ".lazy_symbol_pointer", 0)      \
 684 SECTION_FUNCTION (machopic_nl_symbol_ptr_section,       \
 685                 in_machopic_nl_symbol_ptr,              \
 686                 ".non_lazy_symbol_pointer", 0)  \
 687 SECTION_FUNCTION (machopic_symbol_stub_section,         \
 688                 in_machopic_symbol_stub,                \
 689                 ".symbol_stub", 0)              \
 690 SECTION_FUNCTION (machopic_symbol_stub1_section,        \
 691                 in_machopic_symbol_stub1,               \
 692                 ".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
 693 SECTION_FUNCTION (machopic_picsymbol_stub_section,      \
 694                 in_machopic_picsymbol_stub,             \
 695                 ".picsymbol_stub", 0)           \
 696 SECTION_FUNCTION (machopic_picsymbol_stub1_section,     \
 697                 in_machopic_picsymbol_stub1,            \
 698                 ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
 699 SECTION_FUNCTION (darwin_exception_section,             \
 700                 in_darwin_exception,                    \
 701                 ".section __DATA,__gcc_except_tab", 0)  \
 702 SECTION_FUNCTION (darwin_eh_frame_section,              \
 703                 in_darwin_eh_frame,                     \
 704                 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" EH_FRAME_SECTION_ATTR, 0)  \
 705                                                         \
 706 static void                                     \
 707 objc_section_init (void)                        \
 708 {                                               \
 709   static int been_here = 0;                     \
 710                                                 \
 711   if (been_here == 0)                           \
 712     {                                           \
 713       been_here = 1;                            \
 714           /* written, cold -> hot */            \
 715       objc_cat_cls_meth_section ();             \
 716       objc_cat_inst_meth_section ();            \
 717       objc_string_object_section ();            \
 718       objc_constant_string_object_section ();   \
 719       objc_selector_refs_section ();            \
 720       objc_selector_fixup_section ();           \
 721       objc_cls_refs_section ();                 \
 722       objc_class_section ();                    \
 723       objc_meta_class_section ();               \
 724           /* shared, hot -> cold */             \
 725       objc_cls_meth_section ();                 \
 726       objc_inst_meth_section ();                \
 727       objc_protocol_section ();                 \
 728       objc_class_names_section ();              \
 729       objc_meth_var_types_section ();           \
 730       objc_meth_var_names_section ();           \
 731       objc_category_section ();                 \
 732       objc_class_vars_section ();               \
 733       objc_instance_vars_section ();            \
 734       objc_module_info_section ();              \
 735       objc_symbols_section ();                  \
 736     }                                           \
 737 }
 738
 739 #define READONLY_DATA_SECTION const_section
 740
 741 #undef  TARGET_ASM_SELECT_SECTION
 742 #define TARGET_ASM_SELECT_SECTION machopic_select_section
 743 #undef  TARGET_ASM_SELECT_RTX_SECTION
 744 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
 745 #undef  TARGET_ASM_UNIQUE_SECTION
 746 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
 747
 748
 749
 750 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \
 751     do {                                                                \
 752          if (FILE) {                                                    \
 753            if (MACHOPIC_INDIRECT)                                       \
 754              fprintf (FILE, "\t.lazy_reference ");                      \
 755            else                                                         \
 756              fprintf (FILE, "\t.reference ");                           \
 757            assemble_name (FILE, NAME);                                  \
 758            fprintf (FILE, "\n");                                        \
 759          }                                                              \
 760        } while (0)
 761
 762 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \
 763     do {                                                                \
 764          if (FILE) {                                                    \
 765            fprintf (FILE, "\t");                                        \
 766            assemble_name (FILE, NAME);                                  \
 767            fprintf (FILE, "=0\n");                                      \
 768            (*targetm.asm_out.globalize_label) (FILE, NAME);             \
 769          }                                                              \
 770        } while (0)
 771
 772 /* Globalizing directive for a label.  */
 773 #define GLOBAL_ASM_OP ".globl "
 774 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
 775
 776 /* Emit an assembler directive to set visibility for a symbol.  Used
 777    to support visibility attribute and Darwin's private extern
 778    feature.  */
 779 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 780 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
 781
 782
 783 #undef ASM_GENERATE_INTERNAL_LABEL
 784 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
 785   sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
 786
 787 /* Since we have a separate readonly data section, define this so that
 788    jump tables end up in text rather than data.  */
 789
 790 #ifndef JUMP_TABLES_IN_TEXT_SECTION
 791 #define JUMP_TABLES_IN_TEXT_SECTION 1
 792 #endif
 793
 794 /* Symbolic names for various things we might know about a symbol.  */
 795
 796 enum machopic_addr_class {
 797   MACHOPIC_UNDEFINED,
 798   MACHOPIC_DEFINED_DATA,
 799   MACHOPIC_UNDEFINED_DATA,
 800   MACHOPIC_DEFINED_FUNCTION,
 801   MACHOPIC_UNDEFINED_FUNCTION
 802 };
 803
 804 /* Macros defining the various PIC cases.  */
 805
 806 #define MACHO_DYNAMIC_NO_PIC_P  (TARGET_DYNAMIC_NO_PIC)
 807 #define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
 808 #define MACHOPIC_JUST_INDIRECT  (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
 809 #define MACHOPIC_PURE           (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
 810
 811 #undef TARGET_ENCODE_SECTION_INFO
 812 #define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info
 813 #undef TARGET_STRIP_NAME_ENCODING
 814 #define TARGET_STRIP_NAME_ENCODING  darwin_strip_name_encoding
 815
 816 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \
 817   do {                                                          \
 818     const char *const stub_ = (STUB);                           \
 819     char *buffer_ = (BUF);                                      \
 820     strcpy (buffer_, stub_);                                    \
 821     if (stub_[0] == '"')                                        \
 822       {                                                         \
 823         strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \
 824       }                                                         \
 825     else                                                        \
 826       {                                                         \
 827         strcpy (buffer_ + (STUB_LENGTH), "_binder");            \
 828       }                                                         \
 829   } while (0)
 830
 831 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)    \
 832   do {                                                          \
 833     const char *const symbol_ = (SYMBOL);                       \
 834     char *buffer_ = (BUF);                                      \
 835     if (name_needs_quotes (symbol_) && symbol_[0] != '"')       \
 836       {                                                         \
 837           sprintf (buffer_, "\"%s\"", symbol_);                 \
 838       }                                                         \
 839     else                                                        \
 840       {                                                         \
 841         strcpy (buffer_, symbol_);                              \
 842       }                                                         \
 843   } while (0)
 844
 845 /* Given a symbol name string, create the lazy pointer version
 846    of the symbol name.  */
 847
 848 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)  \
 849   do {                                                          \
 850     const char *symbol_ = darwin_strip_name_encoding (SYMBOL);  \
 851     char *buffer_ = (BUF);                                      \
 852     if (symbol_[0] == '"')                                      \
 853       {                                                         \
 854         strcpy (buffer_, "\"L");                                \
 855         strcpy (buffer_ + 2, symbol_ + 1);                      \
 856         strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\"");      \
 857       }                                                         \
 858     else if (name_needs_quotes (symbol_))                       \
 859       {                                                         \
 860         strcpy (buffer_, "\"L");                                \
 861         strcpy (buffer_ + 2, symbol_);                          \
 862         strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\"");  \
 863       }                                                         \
 864     else                                                        \
 865       {                                                         \
 866         strcpy (buffer_, "L");                                  \
 867         strcpy (buffer_ + 1, symbol_);                          \
 868         strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr");    \
 869       }                                                         \
 870   } while (0)
 871
 872 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
 873
 874 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
 875
 876 #define EH_FRAME_SECTION_NAME   "__TEXT"
 877 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms"
 878
 879 #undef ASM_PREFERRED_EH_DATA_FORMAT
 880 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
 881   (((CODE) == 2 && (GLOBAL) == 1) \
 882    ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
 883      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
 884
 885 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
 886   darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
 887
 888 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)     \
 889       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                            \
 890         darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR);                                     \
 891         goto DONE;                                                                      \
 892       }
 893
 894
 895 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 896
 897 #undef TARGET_ASM_NAMED_SECTION
 898 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
 899 #undef TARGET_SECTION_TYPE_FLAGS
 900 #define TARGET_SECTION_TYPE_FLAGS darwin_section_type_flags
 901
 902 #define DARWIN_REGISTER_TARGET_PRAGMAS()                        \
 903   do {                                                          \
 904     c_register_pragma (0, "mark", darwin_pragma_ignore);        \
 905     c_register_pragma (0, "options", darwin_pragma_options);    \
 906     c_register_pragma (0, "segment", darwin_pragma_ignore);     \
 907     c_register_pragma (0, "unused", darwin_pragma_unused);      \
 908   } while (0)
 909
 910 #undef ASM_APP_ON
 911 #define ASM_APP_ON ""
 912 #undef ASM_APP_OFF
 913 #define ASM_APP_OFF ""
 914
 915 void darwin_register_frameworks (int);
 916 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
 917
 918 void add_framework_path (char *);
 919 #define TARGET_OPTF add_framework_path
 920
 921 #define TARGET_HAS_F_SETLKW
 922
 923 /* Darwin before 7.0 does not have C99 functions.   */
 924 #ifndef TARGET_C99_FUNCTIONS
 925 #define TARGET_C99_FUNCTIONS 0
 926 #endif
 927
 928 #endif /* CONFIG_DARWIN_H */