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