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   { "-dead_strip", "-Zdead_strip" }, \
 113   { "-no_dead_strip_inits_and_terms", "-Zno_dead_strip_inits_and_terms" }, \
 114   { "-dependency-file", "-MF" }, \
 115   { "-dylib_file", "-Zdylib_file" }, \
 116   { "-dynamic", "-Zdynamic" },  \
 117   { "-dynamiclib", "-Zdynamiclib" },  \
 118   { "-exported_symbols_list", "-Zexported_symbols_list" },  \
 119   { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
 120   { "-filelist", "-Xlinker -filelist -Xlinker" },  \
 121   { "-framework", "-Xlinker -framework -Xlinker" },  \
 122   { "-flat_namespace", "-Zflat_namespace" },  \
 123   { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" },  \
 124   { "-force_flat_namespace", "-Zforce_flat_namespace" },  \
 125   { "-image_base", "-Zimage_base" },  \
 126   { "-init", "-Zinit" },  \
 127   { "-install_name", "-Zinstall_name" },  \
 128   { "-multiply_defined_unused", "-Zmultiplydefinedunused" },  \
 129   { "-multiply_defined", "-Zmultiply_defined" },  \
 130   { "-multi_module", "-Zmulti_module" },  \
 131   { "-static", "-static -Wa,-static" },  \
 132   { "-single_module", "-Zsingle_module" },  \
 133   { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
 134   SUBTARGET_OPTION_TRANSLATE_TABLE
 135
 136 /* Nonzero if the user has chosen to force sizeof(bool) to be 1
 137    by providing the -mone-byte-bool switch.  It would be better
 138    to use SUBTARGET_SWITCHES for this instead of SUBTARGET_OPTIONS,
 139    but there are no more bits in rs6000 TARGET_SWITCHES.  Note
 140    that this switch has no "no-" variant. */
 141 extern const char *darwin_one_byte_bool;
 142
 143 extern int darwin_fix_and_continue;
 144 extern const char *darwin_fix_and_continue_switch;
 145
 146 #undef SUBTARGET_OPTIONS
 147 #define SUBTARGET_OPTIONS \
 148   {"one-byte-bool", &darwin_one_byte_bool, N_("Set sizeof(bool) to 1"), 0 }, \
 149   {"fix-and-continue", &darwin_fix_and_continue_switch,                 \
 150    N_("Generate code suitable for fast turn around debugging"), 0},     \
 151   {"no-fix-and-continue", &darwin_fix_and_continue_switch,              \
 152    N_("Don't generate code suitable for fast turn around debugging"), 0}
 153
 154 /* These compiler options take n arguments.  */
 155
 156 #undef  WORD_SWITCH_TAKES_ARG
 157 #define WORD_SWITCH_TAKES_ARG(STR)              \
 158   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
 159    !strcmp (STR, "Zallowable_client") ? 1 :     \
 160    !strcmp (STR, "arch") ? 1 :                  \
 161    !strcmp (STR, "arch_only") ? 1 :             \
 162    !strcmp (STR, "Zbundle_loader") ? 1 :        \
 163    !strcmp (STR, "client_name") ? 1 :           \
 164    !strcmp (STR, "compatibility_version") ? 1 : \
 165    !strcmp (STR, "current_version") ? 1 :       \
 166    !strcmp (STR, "Zdylib_file") ? 1 :           \
 167    !strcmp (STR, "Zexported_symbols_list") ? 1 : \
 168    !strcmp (STR, "Zimage_base") ? 1 :           \
 169    !strcmp (STR, "Zinit") ? 1 :                 \
 170    !strcmp (STR, "Zinstall_name") ? 1 :         \
 171    !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
 172    !strcmp (STR, "Zmultiply_defined") ? 1 :     \
 173    !strcmp (STR, "precomp-trustfile") ? 1 :     \
 174    !strcmp (STR, "read_only_relocs") ? 1 :      \
 175    !strcmp (STR, "sectcreate") ? 3 :            \
 176    !strcmp (STR, "sectorder") ? 3 :             \
 177    !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
 178    !strcmp (STR, "seg1addr") ? 1 :              \
 179    !strcmp (STR, "segprot") ? 3 :               \
 180    !strcmp (STR, "seg_addr_table") ? 1 :        \
 181    !strcmp (STR, "sub_library") ? 1 :           \
 182    !strcmp (STR, "sub_umbrella") ? 1 :          \
 183    !strcmp (STR, "umbrella") ? 1 :              \
 184    !strcmp (STR, "undefined") ? 1 :             \
 185    !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
 186    !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
 187    !strcmp (STR, "pagezero_size") ? 1 :         \
 188    !strcmp (STR, "segs_read_only_addr") ? 1 :   \
 189    !strcmp (STR, "segs_read_write_addr") ? 1 :  \
 190    !strcmp (STR, "sectalign") ? 3 :             \
 191    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
 192    !strcmp (STR, "segcreate") ? 3 :             \
 193    !strcmp (STR, "dylinker_install_name") ? 1 : \
 194    0)
 195
 196 /* Machine dependent cpp options.  __APPLE_CC__ is defined as the
 197    Apple include files expect it to be defined and won't work if it
 198    isn't.  */
 199
 200 #undef  CPP_SPEC
 201 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\
 202     -D__APPLE_CC__=1"
 203
 204 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
 205    precomp, libtool, and fat build additions.  Also we
 206    don't specify a second %G after %L because libSystem is
 207    self-contained and doesn't need to link against libgcc.a.  */
 208 /* In general, random Darwin linker flags should go into LINK_SPEC
 209    instead of LINK_COMMAND_SPEC.  The command spec is better for
 210    specifying the handling of options understood by generic Unix
 211    linkers, and for positional arguments like libraries.  */
 212 #define LINK_COMMAND_SPEC "\
 213 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
 214     %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
 215     %{!Zdynamiclib:-arch %(darwin_arch)} \
 216     %{Zdynamiclib:-arch_only %(darwin_arch)} \
 217     %l %X %{d} %{s} %{t} %{Z} \
 218     %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
 219     %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
 220     %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
 221     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov} \
 222     %{!nostdlib:%{!nodefaultlibs:%G %L}} \
 223     %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
 224
 225 /* Please keep the random linker options in alphabetical order (modulo
 226    'Z' and 'no' prefixes).  Options that can only go to one of libtool
 227    or ld must be listed twice, under both !Zdynamiclib and
 228    Zdynamiclib, with one of the cases reporting an error.  */
 229 /* Note that options taking arguments may appear multiple times on a
 230    command line with different arguments each time, so put a * after
 231    their names so all of them get passed.  */
 232 #define LINK_SPEC  \
 233   "%{static}%{!static:-dynamic} \
 234    %{!Zdynamiclib: \
 235      %{Zbundle:-bundle} \
 236      %{Zbundle_loader*:-bundle_loader %*} \
 237      %{client_name*} \
 238      %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
 239 } \
 240      %{current_version*:%e-current_version only allowed with -dynamiclib} \
 241      %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
 242      %{Zforce_flat_namespace:-force_flat_namespace} \
 243      %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
 244      %{keep_private_externs} \
 245      %{private_bundle} \
 246     } \
 247    %{Zdynamiclib: \
 248      %{Zbundle:%e-bundle not allowed with -dynamiclib} \
 249      %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
 250      %{client_name*:%e-client_name not allowed with -dynamiclib} \
 251      %{compatibility_version*} \
 252      %{current_version*} \
 253      %{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
 254      %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
 255      %{Zinstall_name*:-install_name %*} \
 256      %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
 257      %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
 258     } \
 259    %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
 260    %{Zallowable_client*:-allowable_client %*} \
 261    %{Zbind_at_load:-bind_at_load} \
 262    %{Zarch_errors_fatal:-arch_errors_fatal} \
 263    %{Zdead_strip:-dead_strip} \
 264    %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
 265    %{Zdylib_file*:-dylib_file %*} \
 266    %{Zdynamic:-dynamic}\
 267    %{Zexported_symbols_list*:-exported_symbols_list %*} \
 268    %{Zflat_namespace:-flat_namespace} \
 269    %{headerpad_max_install_names*} \
 270    %{Zimage_base*:-image_base %*} \
 271    %{Zinit*:-init %*} \
 272    %{nomultidefs} \
 273    %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
 274    %{Zmultiply_defined*:-multiply_defined %*} \
 275    %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
 276    %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
 277    %{read_only_relocs} \
 278    %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} %{seg_addr_table*} \
 279    %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
 280    %{sub_library*} %{sub_umbrella*} \
 281    %{twolevel_namespace} %{twolevel_namespace_hints} \
 282    %{umbrella*} \
 283    %{undefined*} \
 284    %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
 285    %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
 286    %{X} \
 287    %{y*} \
 288    %{w} \
 289    %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \
 290    %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
 291    %{whatsloaded} %{dylinker_install_name*} \
 292    %{dylinker} %{Mach} "
 293
 294
 295 /* Machine dependent libraries but do not redefine it if we already on 7.0 and
 296    above as it needs to link with libmx also.  */
 297
 298 #ifndef LIB_SPEC
 299 #define LIB_SPEC "%{!static:-lSystem}"
 300 #endif
 301
 302 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
 303
 304 #undef  STARTFILE_SPEC
 305 #define STARTFILE_SPEC  \
 306   "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
 307      %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
 308                      %{!static:%{object:-lgcrt0.o} \
 309                                %{!object:%{preload:-lgcrt0.o} \
 310                                  %{!preload:-lgcrt1.o crt2.o%s}}}} \
 311                 %{!pg:%{static:-lcrt0.o} \
 312                       %{!static:%{object:-lcrt0.o} \
 313                                 %{!object:%{preload:-lcrt0.o} \
 314                                   %{!preload:-lcrt1.o crt2.o%s}}}}}}"
 315
 316 /* The native Darwin linker doesn't necessarily place files in the order
 317    that they're specified on the link line.  Thus, it is pointless
 318    to put anything in ENDFILE_SPEC.  */
 319 /* #define ENDFILE_SPEC "" */
 320
 321 /* We use Dbx symbol format.  */
 322
 323 #define DBX_DEBUGGING_INFO 1
 324
 325 /* Also enable Dwarf 2 as an option.  */
 326 #define DWARF2_DEBUGGING_INFO
 327 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
 328
 329 #define DEBUG_FRAME_SECTION   "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
 330 #define DEBUG_INFO_SECTION    "__DWARFA,__debug_info"
 331 #define DEBUG_ABBREV_SECTION  "__DWARFA,__debug_abbrev"
 332 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
 333 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
 334 #define DEBUG_LINE_SECTION    "__DWARFA,__debug_line"
 335 #define DEBUG_LOC_SECTION     "__DWARFA,__debug_loc"
 336 #define DEBUG_PUBNAMES_SECTION        "__DWARFA,__debug_pubnames"
 337 #define DEBUG_STR_SECTION     "__DWARFA,__debug_str"
 338 #define DEBUG_RANGES_SECTION  "__DWARFA,__debug_ranges"
 339
 340 /* When generating stabs debugging, use N_BINCL entries.  */
 341
 342 #define DBX_USE_BINCL
 343
 344 /* There is no limit to the length of stabs strings.  */
 345
 346 #define DBX_CONTIN_LENGTH 0
 347
 348 /* gdb needs a null N_SO at the end of each file for scattered loading.  */
 349
 350 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 351 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 352 do { text_section ();                                                   \
 353      fprintf (FILE,                                                     \
 354               "\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO);   \
 355    } while (0)
 356
 357 /* Making a symbols weak on Darwin requires more than just setting DECL_WEAK. */
 358 #define MAKE_DECL_ONE_ONLY(DECL) darwin_make_decl_one_only (DECL)
 359
 360 /* Representation of linkonce symbols for the MACH-O assembler. Linkonce
 361    symbols must be given a special section *and* must be preceded by a
 362    special assembler directive. */
 363 #define ASM_MAKE_LABEL_LINKONCE(FILE,  NAME)                            \
 364  do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) {       \
 365   fputs (".weak_definition ", FILE); assemble_name (FILE, _x);          \
 366   fputs ("\n", FILE); }} while (0)
 367
 368 /* We support hidden visibility */
 369 #undef TARGET_SUPPORTS_HIDDEN
 370 #define TARGET_SUPPORTS_HIDDEN 1
 371
 372 /* The Darwin linker imposes two limitations on common symbols: they
 373    can't have hidden visibility, and they can't appear in dylibs.  As
 374    a consequence, we should never use common symbols to represent
 375    vague linkage. */
 376 #undef USE_COMMON_FOR_ONE_ONLY
 377 #define USE_COMMON_FOR_ONE_ONLY 0
 378
 379 /* The Darwin linker doesn't want coalesced symbols to appear in
 380    a static archive's table of contents. */
 381 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
 382 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
 383
 384 /* We make exception information linkonce. */
 385 #undef TARGET_USES_WEAK_UNWIND_INFO
 386 #define TARGET_USES_WEAK_UNWIND_INFO 1
 387
 388 /* We need to use a nonlocal label for the start of an EH frame: the
 389    Darwin linker requires that a coalesced section start with a label. */
 390 #undef FRAME_BEGIN_LABEL
 391 #define FRAME_BEGIN_LABEL "EH_frame"
 392
 393 /* Emit a label for the FDE corresponding to DECL.  EMPTY means
 394    emit a label for an empty FDE. */
 395 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
 396
 397 /* Our profiling scheme doesn't LP labels and counter words.  */
 398
 399 #define NO_PROFILE_COUNTERS     1
 400
 401 #undef  INIT_SECTION_ASM_OP
 402 #define INIT_SECTION_ASM_OP
 403
 404 #undef  INVOKE__main
 405
 406 #define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor
 407 #define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor
 408
 409 /* Always prefix with an underscore.  */
 410
 411 #define USER_LABEL_PREFIX "_"
 412
 413 /* Don't output a .file directive.  That is only used by the assembler for
 414    error reporting.  */
 415 #undef  TARGET_ASM_FILE_START_FILE_DIRECTIVE
 416 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
 417
 418 #undef  TARGET_ASM_FILE_END
 419 #define TARGET_ASM_FILE_END darwin_file_end
 420
 421 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
 422   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
 423
 424 /* Give ObjC methods pretty symbol names.  */
 425
 426 #undef  OBJC_GEN_METHOD_LABEL
 427 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 428   do { if (CAT_NAME)                                                    \
 429          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 430                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 431        else                                                             \
 432          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 433                   (CLASS_NAME), (SEL_NAME));                            \
 434      } while (0)
 435
 436 /* The RTTI data (e.g., __ti4name) is common and public (and static),
 437    but it does need to be referenced via indirect PIC data pointers.
 438    The machopic_define_symbol calls are telling the machopic subsystem
 439    that the name *is* defined in this module, so it doesn't need to
 440    make them indirect.  */
 441
 442 #undef ASM_DECLARE_OBJECT_NAME
 443 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
 444   do {                                                                  \
 445     const char *xname = NAME;                                           \
 446     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 447       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 448     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 449       if ((TREE_STATIC (DECL)                                           \
 450            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 451           || DECL_INITIAL (DECL))                                       \
 452         machopic_define_symbol (DECL_RTL (DECL));                       \
 453     if ((TREE_STATIC (DECL)                                             \
 454          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 455         || DECL_INITIAL (DECL))                                         \
 456       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 457     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 458     /* Darwin doesn't support zero-size objects, so give them a \
 459        byte.  */                                                        \
 460     if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0)                   \
 461       assemble_zeros (1);                                               \
 462   } while (0)
 463
 464 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 465   do {                                                                  \
 466     const char *xname = NAME;                                           \
 467     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 468       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 469     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 470       if ((TREE_STATIC (DECL)                                           \
 471            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 472           || DECL_INITIAL (DECL))                                       \
 473         machopic_define_symbol (DECL_RTL (DECL));                       \
 474     if ((TREE_STATIC (DECL)                                             \
 475          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 476         || DECL_INITIAL (DECL))                                         \
 477       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 478     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 479   } while (0)
 480
 481 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE)        \
 482   do {                                                          \
 483     ASM_OUTPUT_LABEL (FILE, NAME);                              \
 484     /* Darwin doesn't support zero-size objects, so give them a \
 485        byte.  */                                                \
 486     if ((SIZE) == 0)                                            \
 487       assemble_zeros (1);                                       \
 488   } while (0)
 489
 490 /* Wrap new method names in quotes so the assembler doesn't gag.
 491    Make Objective-C internal symbols local.  */
 492
 493 #undef  ASM_OUTPUT_LABELREF
 494 #define ASM_OUTPUT_LABELREF(FILE,NAME)                                       \
 495   do {                                                                       \
 496        const char *xname = (NAME);                                           \
 497        if (! strcmp (xname, "<pic base>"))                                   \
 498          machopic_output_function_base_name(FILE);                           \
 499        else if (xname[0] == '&' || xname[0] == '*')                          \
 500          {                                                                   \
 501            int len = strlen (xname);                                         \
 502            if (len > 6 && !strcmp ("$stub", xname + len - 5))                \
 503              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 504            else if (len > 7 && !strcmp ("$stub\"", xname + len - 6))         \
 505              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 506            else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
 507              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 508            fputs (&xname[1], FILE);                                          \
 509          }                                                                   \
 510        else if (xname[0] == '+' || xname[0] == '-')                          \
 511          fprintf (FILE, "\"%s\"", xname);                                    \
 512        else if (!strncmp (xname, "_OBJC_", 6))                               \
 513          fprintf (FILE, "L%s", xname);                                       \
 514        else if (!strncmp (xname, ".objc_class_name_", 17))                   \
 515          fprintf (FILE, "%s", xname);                                        \
 516        else                                                                  \
 517          asm_fprintf (FILE, "%U%s", xname);                                  \
 518   } while (0)
 519
 520 /* Output before executable code.  */
 521 #undef TEXT_SECTION_ASM_OP
 522 #define TEXT_SECTION_ASM_OP ".text"
 523
 524 /* Output before writable data.  */
 525
 526 #undef DATA_SECTION_ASM_OP
 527 #define DATA_SECTION_ASM_OP ".data"
 528
 529 #undef  ALIGN_ASM_OP
 530 #define ALIGN_ASM_OP            ".align"
 531
 532 #undef  ASM_OUTPUT_ALIGN
 533 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 534   if ((LOG) != 0)                       \
 535     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
 536
 537 /* Ensure correct alignment of bss data.  */
 538
 539 #undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL
 540 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \
 541   do {                                                                  \
 542     fputs (".lcomm ", (FILE));                                          \
 543     assemble_name ((FILE), (NAME));                                     \
 544     fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (SIZE),    \
 545              floor_log2 ((ALIGN) / BITS_PER_UNIT));                     \
 546     if ((DECL) && ((TREE_STATIC (DECL)                                  \
 547          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 548         || DECL_INITIAL (DECL)))                                        \
 549       {                                                                 \
 550         (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
 551         machopic_define_symbol (DECL_RTL (DECL));                       \
 552       }                                                                 \
 553   } while (0)
 554
 555 /* The maximum alignment which the object file format can support.
 556    For Mach-O, this is 2^15.  */
 557
 558 #undef  MAX_OFILE_ALIGNMENT
 559 #define MAX_OFILE_ALIGNMENT 0x8000
 560
 561 /* Create new Mach-O sections.  */
 562
 563 #undef  SECTION_FUNCTION
 564 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)            \
 565 extern void FUNCTION (void);                                            \
 566 void                                                                    \
 567 FUNCTION (void)                                                         \
 568 {                                                                       \
 569   if (in_section != SECTION)                                            \
 570     {                                                                   \
 571       if (OBJC)                                                         \
 572         objc_section_init ();                                           \
 573       data_section ();                                                  \
 574       if (asm_out_file)                                                 \
 575         fprintf (asm_out_file, "%s\n", DIRECTIVE);                      \
 576       in_section = SECTION;                                             \
 577     }                                                                   \
 578 }                                                                       \
 579
 580 /* Darwin uses many types of special sections.  */
 581
 582 #undef  EXTRA_SECTIONS
 583 #define EXTRA_SECTIONS                                  \
 584   in_const, in_const_data, in_cstring, in_literal4, in_literal8,        \
 585   in_constructor, in_destructor, in_mod_init, in_mod_term,              \
 586   in_objc_class, in_objc_meta_class, in_objc_category,  \
 587   in_objc_class_vars, in_objc_instance_vars,            \
 588   in_objc_cls_meth, in_objc_inst_meth,                  \
 589   in_objc_cat_cls_meth, in_objc_cat_inst_meth,          \
 590   in_objc_selector_refs,                                \
 591   in_objc_selector_fixup,                               \
 592   in_objc_symbols, in_objc_module_info,                 \
 593   in_objc_protocol, in_objc_string_object,              \
 594   in_objc_constant_string_object,                       \
 595   in_objc_image_info,                                   \
 596   in_objc_class_names, in_objc_meth_var_names,          \
 597   in_objc_meth_var_types, in_objc_cls_refs,             \
 598   in_machopic_nl_symbol_ptr,                            \
 599   in_machopic_lazy_symbol_ptr,                          \
 600   in_machopic_symbol_stub,                              \
 601   in_machopic_symbol_stub1,                             \
 602   in_machopic_picsymbol_stub,                           \
 603   in_machopic_picsymbol_stub1,                          \
 604   in_darwin_exception, in_darwin_eh_frame,              \
 605   num_sections
 606
 607 #undef  EXTRA_SECTION_FUNCTIONS
 608 #define EXTRA_SECTION_FUNCTIONS                 \
 609 static void objc_section_init (void);           \
 610 SECTION_FUNCTION (const_section,                \
 611                   in_const,                     \
 612                   ".const", 0)                  \
 613 SECTION_FUNCTION (const_data_section,           \
 614                   in_const_data,                \
 615                   ".const_data", 0)             \
 616 SECTION_FUNCTION (cstring_section,              \
 617                   in_cstring,                   \
 618                   ".cstring", 0)                \
 619 SECTION_FUNCTION (literal4_section,             \
 620                   in_literal4,                  \
 621                   ".literal4", 0)               \
 622 SECTION_FUNCTION (literal8_section,             \
 623                   in_literal8,                  \
 624                   ".literal8", 0)               \
 625 SECTION_FUNCTION (constructor_section,          \
 626                   in_constructor,               \
 627                   ".constructor", 0)            \
 628 SECTION_FUNCTION (mod_init_section,             \
 629                   in_mod_init,                  \
 630                   ".mod_init_func", 0)  \
 631 SECTION_FUNCTION (mod_term_section, \
 632                   in_mod_term,                  \
 633                   ".mod_term_func", 0)  \
 634 SECTION_FUNCTION (destructor_section,           \
 635                   in_destructor,                \
 636                   ".destructor", 0)             \
 637 SECTION_FUNCTION (objc_class_section,           \
 638                   in_objc_class,                \
 639                   ".objc_class", 1)             \
 640 SECTION_FUNCTION (objc_meta_class_section,      \
 641                   in_objc_meta_class,           \
 642                   ".objc_meta_class", 1)        \
 643 SECTION_FUNCTION (objc_category_section,        \
 644                   in_objc_category,             \
 645                 ".objc_category", 1)            \
 646 SECTION_FUNCTION (objc_class_vars_section,      \
 647                   in_objc_class_vars,           \
 648                   ".objc_class_vars", 1)        \
 649 SECTION_FUNCTION (objc_instance_vars_section,   \
 650                   in_objc_instance_vars,        \
 651                   ".objc_instance_vars", 1)     \
 652 SECTION_FUNCTION (objc_cls_meth_section,        \
 653                   in_objc_cls_meth,             \
 654                   ".objc_cls_meth", 1)  \
 655 SECTION_FUNCTION (objc_inst_meth_section,       \
 656                   in_objc_inst_meth,            \
 657                   ".objc_inst_meth", 1) \
 658 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 659                   in_objc_cat_cls_meth,         \
 660                   ".objc_cat_cls_meth", 1)      \
 661 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 662                   in_objc_cat_inst_meth,        \
 663                   ".objc_cat_inst_meth", 1)     \
 664 SECTION_FUNCTION (objc_selector_refs_section,   \
 665                   in_objc_selector_refs,        \
 666                   ".objc_message_refs", 1)      \
 667 SECTION_FUNCTION (objc_selector_fixup_section,  \
 668                   in_objc_selector_fixup,       \
 669                   ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1)    \
 670 SECTION_FUNCTION (objc_symbols_section,         \
 671                   in_objc_symbols,              \
 672                   ".objc_symbols", 1)   \
 673 SECTION_FUNCTION (objc_module_info_section,     \
 674                   in_objc_module_info,          \
 675                   ".objc_module_info", 1)       \
 676 SECTION_FUNCTION (objc_protocol_section,        \
 677                   in_objc_protocol,             \
 678                   ".objc_protocol", 1)  \
 679 SECTION_FUNCTION (objc_string_object_section,   \
 680                   in_objc_string_object,        \
 681                   ".objc_string_object", 1)     \
 682 SECTION_FUNCTION (objc_constant_string_object_section,  \
 683                   in_objc_constant_string_object,       \
 684                   ".section __OBJC, __cstring_object, regular, no_dead_strip", 1)       \
 685 /* Fix-and-Continue image marker.  */           \
 686 SECTION_FUNCTION (objc_image_info_section,      \
 687                   in_objc_image_info,           \
 688                   ".section __OBJC, __image_info, regular, no_dead_strip", 1)   \
 689 SECTION_FUNCTION (objc_class_names_section,     \
 690                 in_objc_class_names,            \
 691                 ".objc_class_names", 1) \
 692 SECTION_FUNCTION (objc_meth_var_names_section,  \
 693                 in_objc_meth_var_names,         \
 694                 ".objc_meth_var_names", 1)      \
 695 SECTION_FUNCTION (objc_meth_var_types_section,  \
 696                 in_objc_meth_var_types,         \
 697                 ".objc_meth_var_types", 1)      \
 698 SECTION_FUNCTION (objc_cls_refs_section,        \
 699                 in_objc_cls_refs,               \
 700                 ".objc_cls_refs", 1)            \
 701                                                 \
 702 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section,     \
 703                 in_machopic_lazy_symbol_ptr,            \
 704                 ".lazy_symbol_pointer", 0)      \
 705 SECTION_FUNCTION (machopic_nl_symbol_ptr_section,       \
 706                 in_machopic_nl_symbol_ptr,              \
 707                 ".non_lazy_symbol_pointer", 0)  \
 708 SECTION_FUNCTION (machopic_symbol_stub_section,         \
 709                 in_machopic_symbol_stub,                \
 710                 ".symbol_stub", 0)              \
 711 SECTION_FUNCTION (machopic_symbol_stub1_section,        \
 712                 in_machopic_symbol_stub1,               \
 713                 ".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
 714 SECTION_FUNCTION (machopic_picsymbol_stub_section,      \
 715                 in_machopic_picsymbol_stub,             \
 716                 ".picsymbol_stub", 0)           \
 717 SECTION_FUNCTION (machopic_picsymbol_stub1_section,     \
 718                 in_machopic_picsymbol_stub1,            \
 719                 ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
 720 SECTION_FUNCTION (darwin_exception_section,             \
 721                 in_darwin_exception,                    \
 722                 ".section __DATA,__gcc_except_tab", 0)  \
 723 SECTION_FUNCTION (darwin_eh_frame_section,              \
 724                 in_darwin_eh_frame,                     \
 725                 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" EH_FRAME_SECTION_ATTR, 0)  \
 726                                                         \
 727 static void                                     \
 728 objc_section_init (void)                        \
 729 {                                               \
 730   static int been_here = 0;                     \
 731                                                 \
 732   if (been_here == 0)                           \
 733     {                                           \
 734       been_here = 1;                            \
 735           /* written, cold -> hot */            \
 736       objc_cat_cls_meth_section ();             \
 737       objc_cat_inst_meth_section ();            \
 738       objc_string_object_section ();            \
 739       objc_constant_string_object_section ();   \
 740       objc_selector_refs_section ();            \
 741       objc_selector_fixup_section ();           \
 742       objc_cls_refs_section ();                 \
 743       objc_class_section ();                    \
 744       objc_meta_class_section ();               \
 745           /* shared, hot -> cold */             \
 746       objc_cls_meth_section ();                 \
 747       objc_inst_meth_section ();                \
 748       objc_protocol_section ();                 \
 749       objc_class_names_section ();              \
 750       objc_meth_var_types_section ();           \
 751       objc_meth_var_names_section ();           \
 752       objc_category_section ();                 \
 753       objc_class_vars_section ();               \
 754       objc_instance_vars_section ();            \
 755       objc_module_info_section ();              \
 756       objc_symbols_section ();                  \
 757     }                                           \
 758 }
 759
 760 #define READONLY_DATA_SECTION const_section
 761
 762 #undef  TARGET_ASM_SELECT_SECTION
 763 #define TARGET_ASM_SELECT_SECTION machopic_select_section
 764 #undef  TARGET_ASM_SELECT_RTX_SECTION
 765 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
 766 #undef  TARGET_ASM_UNIQUE_SECTION
 767 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
 768 #undef  TARGET_ASM_FUNCTION_RODATA_SECTION
 769 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
 770
 771
 772 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \
 773     do {                                                                \
 774          if (FILE) {                                                    \
 775            if (MACHOPIC_INDIRECT)                                       \
 776              fprintf (FILE, "\t.lazy_reference ");                      \
 777            else                                                         \
 778              fprintf (FILE, "\t.reference ");                           \
 779            assemble_name (FILE, NAME);                                  \
 780            fprintf (FILE, "\n");                                        \
 781          }                                                              \
 782        } while (0)
 783
 784 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \
 785     do {                                                                \
 786          if (FILE) {                                                    \
 787            fprintf (FILE, "\t");                                        \
 788            assemble_name (FILE, NAME);                                  \
 789            fprintf (FILE, "=0\n");                                      \
 790            (*targetm.asm_out.globalize_label) (FILE, NAME);             \
 791          }                                                              \
 792        } while (0)
 793
 794 /* Globalizing directive for a label.  */
 795 #define GLOBAL_ASM_OP ".globl "
 796 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
 797
 798 /* Emit an assembler directive to set visibility for a symbol.  Used
 799    to support visibility attribute and Darwin's private extern
 800    feature.  */
 801 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 802 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
 803
 804
 805 #undef ASM_GENERATE_INTERNAL_LABEL
 806 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
 807   sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
 808
 809 #undef TARGET_ASM_MARK_DECL_PRESERVED
 810 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
 811
 812 /* Since we have a separate readonly data section, define this so that
 813    jump tables end up in text rather than data.  */
 814
 815 #ifndef JUMP_TABLES_IN_TEXT_SECTION
 816 #define JUMP_TABLES_IN_TEXT_SECTION 1
 817 #endif
 818
 819 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
 820    MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
 821    variable has been defined in this translation unit.  */
 822
 823 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
 824 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
 825
 826 /* Set on a symbol to indicate when fix-and-continue style code
 827    generation is being used and the symbol refers to a static symbol
 828    that should be rebound from new instances of a translation unit to
 829    the original instance of the data.  */
 830
 831 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
 832
 833 /* Symbolic names for various things we might know about a symbol.  */
 834
 835 enum machopic_addr_class {
 836   MACHOPIC_UNDEFINED,
 837   MACHOPIC_DEFINED_DATA,
 838   MACHOPIC_UNDEFINED_DATA,
 839   MACHOPIC_DEFINED_FUNCTION,
 840   MACHOPIC_UNDEFINED_FUNCTION
 841 };
 842
 843 /* Macros defining the various PIC cases.  */
 844
 845 #define MACHO_DYNAMIC_NO_PIC_P  (TARGET_DYNAMIC_NO_PIC)
 846 #define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
 847 #define MACHOPIC_JUST_INDIRECT  (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
 848 #define MACHOPIC_PURE           (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
 849
 850 #undef TARGET_ENCODE_SECTION_INFO
 851 #define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info
 852 #undef TARGET_STRIP_NAME_ENCODING
 853 #define TARGET_STRIP_NAME_ENCODING  default_strip_name_encoding
 854
 855 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \
 856   do {                                                          \
 857     const char *const stub_ = (STUB);                           \
 858     char *buffer_ = (BUF);                                      \
 859     strcpy (buffer_, stub_);                                    \
 860     if (stub_[0] == '"')                                        \
 861       {                                                         \
 862         strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \
 863       }                                                         \
 864     else                                                        \
 865       {                                                         \
 866         strcpy (buffer_ + (STUB_LENGTH), "_binder");            \
 867       }                                                         \
 868   } while (0)
 869
 870 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)    \
 871   do {                                                          \
 872     const char *const symbol_ = (SYMBOL);                       \
 873     char *buffer_ = (BUF);                                      \
 874     if (name_needs_quotes (symbol_) && symbol_[0] != '"')       \
 875       {                                                         \
 876           sprintf (buffer_, "\"%s\"", symbol_);                 \
 877       }                                                         \
 878     else                                                        \
 879       {                                                         \
 880         strcpy (buffer_, symbol_);                              \
 881       }                                                         \
 882   } while (0)
 883
 884 /* Given a symbol name string, create the lazy pointer version
 885    of the symbol name.  */
 886
 887 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)  \
 888   do {                                                          \
 889     const char *symbol_ = (SYMBOL);                             \
 890     char *buffer_ = (BUF);                                      \
 891     if (symbol_[0] == '"')                                      \
 892       {                                                         \
 893         strcpy (buffer_, "\"L");                                \
 894         strcpy (buffer_ + 2, symbol_ + 1);                      \
 895         strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\"");      \
 896       }                                                         \
 897     else if (name_needs_quotes (symbol_))                       \
 898       {                                                         \
 899         strcpy (buffer_, "\"L");                                \
 900         strcpy (buffer_ + 2, symbol_);                          \
 901         strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\"");  \
 902       }                                                         \
 903     else                                                        \
 904       {                                                         \
 905         strcpy (buffer_, "L");                                  \
 906         strcpy (buffer_ + 1, symbol_);                          \
 907         strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr");    \
 908       }                                                         \
 909   } while (0)
 910
 911 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
 912
 913 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
 914
 915 #define EH_FRAME_SECTION_NAME   "__TEXT"
 916 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
 917
 918 #undef ASM_PREFERRED_EH_DATA_FORMAT
 919 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
 920   (((CODE) == 2 && (GLOBAL) == 1) \
 921    ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
 922      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
 923
 924 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
 925   darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
 926
 927 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)     \
 928       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                            \
 929         darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR);                                     \
 930         goto DONE;                                                                      \
 931       }
 932
 933
 934 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 935
 936 #undef TARGET_ASM_NAMED_SECTION
 937 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
 938 #undef TARGET_SECTION_TYPE_FLAGS
 939 #define TARGET_SECTION_TYPE_FLAGS darwin_section_type_flags
 940
 941 #define DARWIN_REGISTER_TARGET_PRAGMAS()                        \
 942   do {                                                          \
 943     c_register_pragma (0, "mark", darwin_pragma_ignore);        \
 944     c_register_pragma (0, "options", darwin_pragma_options);    \
 945     c_register_pragma (0, "segment", darwin_pragma_ignore);     \
 946     c_register_pragma (0, "unused", darwin_pragma_unused);      \
 947   } while (0)
 948
 949 #undef ASM_APP_ON
 950 #define ASM_APP_ON ""
 951 #undef ASM_APP_OFF
 952 #define ASM_APP_OFF ""
 953
 954 void darwin_register_frameworks (int);
 955 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
 956
 957 void add_framework_path (char *);
 958 #define TARGET_OPTF add_framework_path
 959
 960 #define TARGET_HAS_F_SETLKW
 961
 962 /* Darwin before 7.0 does not have C99 functions.   */
 963 #ifndef TARGET_C99_FUNCTIONS
 964 #define TARGET_C99_FUNCTIONS 0
 965 #endif
 966
 967 #define WINT_TYPE "int"
 968
 969 #endif /* CONFIG_DARWIN_H */