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   { "-segaddr", "-Zsegaddr" }, \
 120   { "-segs_read_only_addr", "-Zsegs_read_only_addr" }, \
 121   { "-segs_read_write_addr", "-Zsegs_read_write_addr" }, \
 122   { "-seg_addr_table", "-Zseg_addr_table" }, \
 123   { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
 124   { "-filelist", "-Xlinker -filelist -Xlinker" },  \
 125   { "-framework", "-Xlinker -framework -Xlinker" },  \
 126   { "-flat_namespace", "-Zflat_namespace" },  \
 127   { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" },  \
 128   { "-force_flat_namespace", "-Zforce_flat_namespace" },  \
 129   { "-image_base", "-Zimage_base" },  \
 130   { "-init", "-Zinit" },  \
 131   { "-install_name", "-Zinstall_name" },  \
 132   { "-multiply_defined_unused", "-Zmultiplydefinedunused" },  \
 133   { "-multiply_defined", "-Zmultiply_defined" },  \
 134   { "-multi_module", "-Zmulti_module" },  \
 135   { "-static", "-static -Wa,-static" },  \
 136   { "-single_module", "-Zsingle_module" },  \
 137   { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
 138   SUBTARGET_OPTION_TRANSLATE_TABLE
 139
 140 /* Nonzero if the user has chosen to force sizeof(bool) to be 1
 141    by providing the -mone-byte-bool switch.  It would be better
 142    to use SUBTARGET_SWITCHES for this instead of SUBTARGET_OPTIONS,
 143    but there are no more bits in rs6000 TARGET_SWITCHES.  Note
 144    that this switch has no "no-" variant. */
 145 extern const char *darwin_one_byte_bool;
 146
 147 extern int darwin_fix_and_continue;
 148 extern const char *darwin_fix_and_continue_switch;
 149
 150 #undef SUBTARGET_OPTIONS
 151 #define SUBTARGET_OPTIONS \
 152   {"one-byte-bool", &darwin_one_byte_bool, N_("Set sizeof(bool) to 1"), 0 }, \
 153   {"fix-and-continue", &darwin_fix_and_continue_switch,                 \
 154    N_("Generate code suitable for fast turn around debugging"), 0},     \
 155   {"no-fix-and-continue", &darwin_fix_and_continue_switch,              \
 156    N_("Don't generate code suitable for fast turn around debugging"), 0}
 157
 158 /* These compiler options take n arguments.  */
 159
 160 #undef  WORD_SWITCH_TAKES_ARG
 161 #define WORD_SWITCH_TAKES_ARG(STR)              \
 162   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
 163    !strcmp (STR, "Zallowable_client") ? 1 :     \
 164    !strcmp (STR, "arch") ? 1 :                  \
 165    !strcmp (STR, "arch_only") ? 1 :             \
 166    !strcmp (STR, "Zbundle_loader") ? 1 :        \
 167    !strcmp (STR, "client_name") ? 1 :           \
 168    !strcmp (STR, "compatibility_version") ? 1 : \
 169    !strcmp (STR, "current_version") ? 1 :       \
 170    !strcmp (STR, "Zdylib_file") ? 1 :           \
 171    !strcmp (STR, "Zexported_symbols_list") ? 1 : \
 172    !strcmp (STR, "Zimage_base") ? 1 :           \
 173    !strcmp (STR, "Zinit") ? 1 :                 \
 174    !strcmp (STR, "Zinstall_name") ? 1 :         \
 175    !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
 176    !strcmp (STR, "Zmultiply_defined") ? 1 :     \
 177    !strcmp (STR, "precomp-trustfile") ? 1 :     \
 178    !strcmp (STR, "read_only_relocs") ? 1 :      \
 179    !strcmp (STR, "sectcreate") ? 3 :            \
 180    !strcmp (STR, "sectorder") ? 3 :             \
 181    !strcmp (STR, "Zsegaddr") ? 2 :              \
 182    !strcmp (STR, "Zsegs_read_only_addr") ? 1 :  \
 183    !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
 184    !strcmp (STR, "Zseg_addr_table") ? 1 :       \
 185    !strcmp (STR, "Zseg_addr_table_filename") ?1 :\
 186    !strcmp (STR, "seg1addr") ? 1 :              \
 187    !strcmp (STR, "segprot") ? 3 :               \
 188    !strcmp (STR, "sub_library") ? 1 :           \
 189    !strcmp (STR, "sub_umbrella") ? 1 :          \
 190    !strcmp (STR, "umbrella") ? 1 :              \
 191    !strcmp (STR, "undefined") ? 1 :             \
 192    !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
 193    !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
 194    !strcmp (STR, "pagezero_size") ? 1 :         \
 195    !strcmp (STR, "segs_read_only_addr") ? 1 :   \
 196    !strcmp (STR, "segs_read_write_addr") ? 1 :  \
 197    !strcmp (STR, "sectalign") ? 3 :             \
 198    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
 199    !strcmp (STR, "segcreate") ? 3 :             \
 200    !strcmp (STR, "dylinker_install_name") ? 1 : \
 201    0)
 202
 203 /* Machine dependent cpp options.  __APPLE_CC__ is defined as the
 204    Apple include files expect it to be defined and won't work if it
 205    isn't.  */
 206
 207 #undef  CPP_SPEC
 208 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\
 209     -D__APPLE_CC__=1"
 210
 211 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
 212    precomp, libtool, and fat build additions.  Also we
 213    don't specify a second %G after %L because libSystem is
 214    self-contained and doesn't need to link against libgcc.a.  */
 215 /* In general, random Darwin linker flags should go into LINK_SPEC
 216    instead of LINK_COMMAND_SPEC.  The command spec is better for
 217    specifying the handling of options understood by generic Unix
 218    linkers, and for positional arguments like libraries.  */
 219 #define LINK_COMMAND_SPEC "\
 220 %{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
 221     %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
 222     %{!Zdynamiclib:-arch %(darwin_arch)} \
 223     %{Zdynamiclib:-arch_only %(darwin_arch)} \
 224     %l %X %{d} %{s} %{t} %{Z} \
 225     %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
 226     %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
 227     %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
 228     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov} \
 229     %{!nostdlib:%{!nodefaultlibs:%G %L}} \
 230     %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
 231
 232 /* Please keep the random linker options in alphabetical order (modulo
 233    'Z' and 'no' prefixes).  Options that can only go to one of libtool
 234    or ld must be listed twice, under both !Zdynamiclib and
 235    Zdynamiclib, with one of the cases reporting an error.  */
 236 /* Note that options taking arguments may appear multiple times on a
 237    command line with different arguments each time, so put a * after
 238    their names so all of them get passed.  */
 239 #define LINK_SPEC  \
 240   "%{static}%{!static:-dynamic} \
 241    %{!Zdynamiclib: \
 242      %{Zbundle:-bundle} \
 243      %{Zbundle_loader*:-bundle_loader %*} \
 244      %{client_name*} \
 245      %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
 246 } \
 247      %{current_version*:%e-current_version only allowed with -dynamiclib} \
 248      %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
 249      %{Zforce_flat_namespace:-force_flat_namespace} \
 250      %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
 251      %{keep_private_externs} \
 252      %{private_bundle} \
 253     } \
 254    %{Zdynamiclib: \
 255      %{Zbundle:%e-bundle not allowed with -dynamiclib} \
 256      %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
 257      %{client_name*:%e-client_name not allowed with -dynamiclib} \
 258      %{compatibility_version*} \
 259      %{current_version*} \
 260      %{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
 261      %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
 262      %{Zinstall_name*:-install_name %*} \
 263      %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
 264      %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
 265     } \
 266    %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
 267    %{Zallowable_client*:-allowable_client %*} \
 268    %{Zbind_at_load:-bind_at_load} \
 269    %{Zarch_errors_fatal:-arch_errors_fatal} \
 270    %{Zdead_strip:-dead_strip} \
 271    %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
 272    %{Zdylib_file*:-dylib_file %*} \
 273    %{Zdynamic:-dynamic}\
 274    %{Zexported_symbols_list*:-exported_symbols_list %*} \
 275    %{Zflat_namespace:-flat_namespace} \
 276    %{headerpad_max_install_names*} \
 277    %{Zimage_base*:-image_base %*} \
 278    %{Zinit*:-init %*} \
 279    %{nomultidefs} \
 280    %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
 281    %{Zmultiply_defined*:-multiply_defined %*} \
 282    %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
 283    %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
 284    %{read_only_relocs} \
 285    %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
 286    %{Zsegaddr*:-segaddr %*} \
 287    %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
 288    %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
 289    %{Zseg_addr_table*: -seg_addr_table %*} \
 290    %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
 291    %{sub_library*} %{sub_umbrella*} \
 292    %{twolevel_namespace} %{twolevel_namespace_hints} \
 293    %{umbrella*} \
 294    %{undefined*} \
 295    %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
 296    %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
 297    %{X} \
 298    %{y*} \
 299    %{w} \
 300    %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \
 301    %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
 302    %{whatsloaded} %{dylinker_install_name*} \
 303    %{dylinker} %{Mach} "
 304
 305
 306 /* Machine dependent libraries but do not redefine it if we already on 7.0 and
 307    above as it needs to link with libmx also.  */
 308
 309 #ifndef LIB_SPEC
 310 #define LIB_SPEC "%{!static:-lSystem}"
 311 #endif
 312
 313 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
 314
 315 #undef  STARTFILE_SPEC
 316 #define STARTFILE_SPEC  \
 317   "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
 318      %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
 319                      %{!static:%{object:-lgcrt0.o} \
 320                                %{!object:%{preload:-lgcrt0.o} \
 321                                  %{!preload:-lgcrt1.o crt2.o%s}}}} \
 322                 %{!pg:%{static:-lcrt0.o} \
 323                       %{!static:%{object:-lcrt0.o} \
 324                                 %{!object:%{preload:-lcrt0.o} \
 325                                   %{!preload:-lcrt1.o crt2.o%s}}}}}}"
 326
 327 /* The native Darwin linker doesn't necessarily place files in the order
 328    that they're specified on the link line.  Thus, it is pointless
 329    to put anything in ENDFILE_SPEC.  */
 330 /* #define ENDFILE_SPEC "" */
 331
 332 /* We use Dbx symbol format.  */
 333
 334 #define DBX_DEBUGGING_INFO 1
 335
 336 /* Also enable Dwarf 2 as an option.  */
 337 #define DWARF2_DEBUGGING_INFO
 338 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
 339
 340 #define DEBUG_FRAME_SECTION   "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
 341 #define DEBUG_INFO_SECTION    "__DWARFA,__debug_info"
 342 #define DEBUG_ABBREV_SECTION  "__DWARFA,__debug_abbrev"
 343 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
 344 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
 345 #define DEBUG_LINE_SECTION    "__DWARFA,__debug_line"
 346 #define DEBUG_LOC_SECTION     "__DWARFA,__debug_loc"
 347 #define DEBUG_PUBNAMES_SECTION        "__DWARFA,__debug_pubnames"
 348 #define DEBUG_STR_SECTION     "__DWARFA,__debug_str"
 349 #define DEBUG_RANGES_SECTION  "__DWARFA,__debug_ranges"
 350
 351 /* When generating stabs debugging, use N_BINCL entries.  */
 352
 353 #define DBX_USE_BINCL
 354
 355 /* There is no limit to the length of stabs strings.  */
 356
 357 #define DBX_CONTIN_LENGTH 0
 358
 359 /* gdb needs a null N_SO at the end of each file for scattered loading.  */
 360
 361 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 362 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 363 do { text_section ();                                                   \
 364      fprintf (FILE,                                                     \
 365               "\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO);   \
 366    } while (0)
 367
 368 /* Making a symbols weak on Darwin requires more than just setting DECL_WEAK. */
 369 #define MAKE_DECL_ONE_ONLY(DECL) darwin_make_decl_one_only (DECL)
 370
 371 /* Representation of linkonce symbols for the MACH-O assembler. Linkonce
 372    symbols must be given a special section *and* must be preceded by a
 373    special assembler directive. */
 374 #define ASM_MAKE_LABEL_LINKONCE(FILE,  NAME)                            \
 375  do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) {       \
 376   fputs (".weak_definition ", FILE); assemble_name (FILE, _x);          \
 377   fputs ("\n", FILE); }} while (0)
 378
 379 /* We support hidden visibility */
 380 #undef TARGET_SUPPORTS_HIDDEN
 381 #define TARGET_SUPPORTS_HIDDEN 1
 382
 383 /* The Darwin linker imposes two limitations on common symbols: they
 384    can't have hidden visibility, and they can't appear in dylibs.  As
 385    a consequence, we should never use common symbols to represent
 386    vague linkage. */
 387 #undef USE_COMMON_FOR_ONE_ONLY
 388 #define USE_COMMON_FOR_ONE_ONLY 0
 389
 390 /* The Darwin linker doesn't want coalesced symbols to appear in
 391    a static archive's table of contents. */
 392 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
 393 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
 394
 395 /* We make exception information linkonce. */
 396 #undef TARGET_USES_WEAK_UNWIND_INFO
 397 #define TARGET_USES_WEAK_UNWIND_INFO 1
 398
 399 /* We need to use a nonlocal label for the start of an EH frame: the
 400    Darwin linker requires that a coalesced section start with a label. */
 401 #undef FRAME_BEGIN_LABEL
 402 #define FRAME_BEGIN_LABEL "EH_frame"
 403
 404 /* Emit a label for the FDE corresponding to DECL.  EMPTY means
 405    emit a label for an empty FDE. */
 406 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
 407
 408 /* Our profiling scheme doesn't LP labels and counter words.  */
 409
 410 #define NO_PROFILE_COUNTERS     1
 411
 412 #undef  INIT_SECTION_ASM_OP
 413 #define INIT_SECTION_ASM_OP
 414
 415 #undef  INVOKE__main
 416
 417 #define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor
 418 #define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor
 419
 420 /* Always prefix with an underscore.  */
 421
 422 #define USER_LABEL_PREFIX "_"
 423
 424 /* Don't output a .file directive.  That is only used by the assembler for
 425    error reporting.  */
 426 #undef  TARGET_ASM_FILE_START_FILE_DIRECTIVE
 427 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
 428
 429 #undef  TARGET_ASM_FILE_END
 430 #define TARGET_ASM_FILE_END darwin_file_end
 431
 432 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
 433   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
 434
 435 /* Give ObjC methods pretty symbol names.  */
 436
 437 #undef  OBJC_GEN_METHOD_LABEL
 438 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 439   do { if (CAT_NAME)                                                    \
 440          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 441                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 442        else                                                             \
 443          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 444                   (CLASS_NAME), (SEL_NAME));                            \
 445      } while (0)
 446
 447 /* The RTTI data (e.g., __ti4name) is common and public (and static),
 448    but it does need to be referenced via indirect PIC data pointers.
 449    The machopic_define_symbol calls are telling the machopic subsystem
 450    that the name *is* defined in this module, so it doesn't need to
 451    make them indirect.  */
 452
 453 #undef ASM_DECLARE_OBJECT_NAME
 454 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
 455   do {                                                                  \
 456     const char *xname = NAME;                                           \
 457     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 458       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 459     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 460       if ((TREE_STATIC (DECL)                                           \
 461            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 462           || DECL_INITIAL (DECL))                                       \
 463         machopic_define_symbol (DECL_RTL (DECL));                       \
 464     if ((TREE_STATIC (DECL)                                             \
 465          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 466         || DECL_INITIAL (DECL))                                         \
 467       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 468     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 469     /* Darwin doesn't support zero-size objects, so give them a \
 470        byte.  */                                                        \
 471     if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0)                   \
 472       assemble_zeros (1);                                               \
 473   } while (0)
 474
 475 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 476   do {                                                                  \
 477     const char *xname = NAME;                                           \
 478     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 479       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 480     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 481       if ((TREE_STATIC (DECL)                                           \
 482            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 483           || DECL_INITIAL (DECL))                                       \
 484         machopic_define_symbol (DECL_RTL (DECL));                       \
 485     if ((TREE_STATIC (DECL)                                             \
 486          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 487         || DECL_INITIAL (DECL))                                         \
 488       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 489     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 490   } while (0)
 491
 492 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE)        \
 493   do {                                                          \
 494     ASM_OUTPUT_LABEL (FILE, NAME);                              \
 495     /* Darwin doesn't support zero-size objects, so give them a \
 496        byte.  */                                                \
 497     if ((SIZE) == 0)                                            \
 498       assemble_zeros (1);                                       \
 499   } while (0)
 500
 501 /* Wrap new method names in quotes so the assembler doesn't gag.
 502    Make Objective-C internal symbols local.  */
 503
 504 #undef  ASM_OUTPUT_LABELREF
 505 #define ASM_OUTPUT_LABELREF(FILE,NAME)                                       \
 506   do {                                                                       \
 507        const char *xname = (NAME);                                           \
 508        if (! strcmp (xname, "<pic base>"))                                   \
 509          machopic_output_function_base_name(FILE);                           \
 510        else if (xname[0] == '&' || xname[0] == '*')                          \
 511          {                                                                   \
 512            int len = strlen (xname);                                         \
 513            if (len > 6 && !strcmp ("$stub", xname + len - 5))                \
 514              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 515            else if (len > 7 && !strcmp ("$stub\"", xname + len - 6))         \
 516              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 517            else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
 518              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 519            fputs (&xname[1], FILE);                                          \
 520          }                                                                   \
 521        else if (xname[0] == '+' || xname[0] == '-')                          \
 522          fprintf (FILE, "\"%s\"", xname);                                    \
 523        else if (!strncmp (xname, "_OBJC_", 6))                               \
 524          fprintf (FILE, "L%s", xname);                                       \
 525        else if (!strncmp (xname, ".objc_class_name_", 17))                   \
 526          fprintf (FILE, "%s", xname);                                        \
 527        else                                                                  \
 528          asm_fprintf (FILE, "%U%s", xname);                                  \
 529   } while (0)
 530
 531 /* Output before executable code.  */
 532 #undef TEXT_SECTION_ASM_OP
 533 #define TEXT_SECTION_ASM_OP ".text"
 534
 535 /* Output before writable data.  */
 536
 537 #undef DATA_SECTION_ASM_OP
 538 #define DATA_SECTION_ASM_OP ".data"
 539
 540 #undef  ALIGN_ASM_OP
 541 #define ALIGN_ASM_OP            ".align"
 542
 543 #undef  ASM_OUTPUT_ALIGN
 544 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 545   if ((LOG) != 0)                       \
 546     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
 547
 548 /* Ensure correct alignment of bss data.  */
 549
 550 #undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL
 551 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \
 552   do {                                                                  \
 553     fputs (".lcomm ", (FILE));                                          \
 554     assemble_name ((FILE), (NAME));                                     \
 555     fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (SIZE),    \
 556              floor_log2 ((ALIGN) / BITS_PER_UNIT));                     \
 557     if ((DECL) && ((TREE_STATIC (DECL)                                  \
 558          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 559         || DECL_INITIAL (DECL)))                                        \
 560       {                                                                 \
 561         (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
 562         machopic_define_symbol (DECL_RTL (DECL));                       \
 563       }                                                                 \
 564   } while (0)
 565
 566 /* The maximum alignment which the object file format can support.
 567    For Mach-O, this is 2^15.  */
 568
 569 #undef  MAX_OFILE_ALIGNMENT
 570 #define MAX_OFILE_ALIGNMENT 0x8000
 571
 572 /* Create new Mach-O sections.  */
 573
 574 #undef  SECTION_FUNCTION
 575 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)            \
 576 extern void FUNCTION (void);                                            \
 577 void                                                                    \
 578 FUNCTION (void)                                                         \
 579 {                                                                       \
 580   if (in_section != SECTION)                                            \
 581     {                                                                   \
 582       if (OBJC)                                                         \
 583         objc_section_init ();                                           \
 584       data_section ();                                                  \
 585       if (asm_out_file)                                                 \
 586         fprintf (asm_out_file, "%s\n", DIRECTIVE);                      \
 587       in_section = SECTION;                                             \
 588     }                                                                   \
 589 }                                                                       \
 590
 591 /* Darwin uses many types of special sections.  */
 592
 593 #undef  EXTRA_SECTIONS
 594 #define EXTRA_SECTIONS                                  \
 595   in_const, in_const_data, in_cstring, in_literal4, in_literal8,        \
 596   in_constructor, in_destructor, in_mod_init, in_mod_term,              \
 597   in_objc_class, in_objc_meta_class, in_objc_category,  \
 598   in_objc_class_vars, in_objc_instance_vars,            \
 599   in_objc_cls_meth, in_objc_inst_meth,                  \
 600   in_objc_cat_cls_meth, in_objc_cat_inst_meth,          \
 601   in_objc_selector_refs,                                \
 602   in_objc_selector_fixup,                               \
 603   in_objc_symbols, in_objc_module_info,                 \
 604   in_objc_protocol, in_objc_string_object,              \
 605   in_objc_constant_string_object,                       \
 606   in_objc_image_info,                                   \
 607   in_objc_class_names, in_objc_meth_var_names,          \
 608   in_objc_meth_var_types, in_objc_cls_refs,             \
 609   in_machopic_nl_symbol_ptr,                            \
 610   in_machopic_lazy_symbol_ptr,                          \
 611   in_machopic_symbol_stub,                              \
 612   in_machopic_symbol_stub1,                             \
 613   in_machopic_picsymbol_stub,                           \
 614   in_machopic_picsymbol_stub1,                          \
 615   in_darwin_exception, in_darwin_eh_frame,              \
 616   num_sections
 617
 618 #undef  EXTRA_SECTION_FUNCTIONS
 619 #define EXTRA_SECTION_FUNCTIONS                 \
 620 static void objc_section_init (void);           \
 621 SECTION_FUNCTION (const_section,                \
 622                   in_const,                     \
 623                   ".const", 0)                  \
 624 SECTION_FUNCTION (const_data_section,           \
 625                   in_const_data,                \
 626                   ".const_data", 0)             \
 627 SECTION_FUNCTION (cstring_section,              \
 628                   in_cstring,                   \
 629                   ".cstring", 0)                \
 630 SECTION_FUNCTION (literal4_section,             \
 631                   in_literal4,                  \
 632                   ".literal4", 0)               \
 633 SECTION_FUNCTION (literal8_section,             \
 634                   in_literal8,                  \
 635                   ".literal8", 0)               \
 636 SECTION_FUNCTION (constructor_section,          \
 637                   in_constructor,               \
 638                   ".constructor", 0)            \
 639 SECTION_FUNCTION (mod_init_section,             \
 640                   in_mod_init,                  \
 641                   ".mod_init_func", 0)  \
 642 SECTION_FUNCTION (mod_term_section, \
 643                   in_mod_term,                  \
 644                   ".mod_term_func", 0)  \
 645 SECTION_FUNCTION (destructor_section,           \
 646                   in_destructor,                \
 647                   ".destructor", 0)             \
 648 SECTION_FUNCTION (objc_class_section,           \
 649                   in_objc_class,                \
 650                   ".objc_class", 1)             \
 651 SECTION_FUNCTION (objc_meta_class_section,      \
 652                   in_objc_meta_class,           \
 653                   ".objc_meta_class", 1)        \
 654 SECTION_FUNCTION (objc_category_section,        \
 655                   in_objc_category,             \
 656                 ".objc_category", 1)            \
 657 SECTION_FUNCTION (objc_class_vars_section,      \
 658                   in_objc_class_vars,           \
 659                   ".objc_class_vars", 1)        \
 660 SECTION_FUNCTION (objc_instance_vars_section,   \
 661                   in_objc_instance_vars,        \
 662                   ".objc_instance_vars", 1)     \
 663 SECTION_FUNCTION (objc_cls_meth_section,        \
 664                   in_objc_cls_meth,             \
 665                   ".objc_cls_meth", 1)  \
 666 SECTION_FUNCTION (objc_inst_meth_section,       \
 667                   in_objc_inst_meth,            \
 668                   ".objc_inst_meth", 1) \
 669 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 670                   in_objc_cat_cls_meth,         \
 671                   ".objc_cat_cls_meth", 1)      \
 672 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 673                   in_objc_cat_inst_meth,        \
 674                   ".objc_cat_inst_meth", 1)     \
 675 SECTION_FUNCTION (objc_selector_refs_section,   \
 676                   in_objc_selector_refs,        \
 677                   ".objc_message_refs", 1)      \
 678 SECTION_FUNCTION (objc_selector_fixup_section,  \
 679                   in_objc_selector_fixup,       \
 680                   ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1)    \
 681 SECTION_FUNCTION (objc_symbols_section,         \
 682                   in_objc_symbols,              \
 683                   ".objc_symbols", 1)   \
 684 SECTION_FUNCTION (objc_module_info_section,     \
 685                   in_objc_module_info,          \
 686                   ".objc_module_info", 1)       \
 687 SECTION_FUNCTION (objc_protocol_section,        \
 688                   in_objc_protocol,             \
 689                   ".objc_protocol", 1)  \
 690 SECTION_FUNCTION (objc_string_object_section,   \
 691                   in_objc_string_object,        \
 692                   ".objc_string_object", 1)     \
 693 SECTION_FUNCTION (objc_constant_string_object_section,  \
 694                   in_objc_constant_string_object,       \
 695                   ".section __OBJC, __cstring_object, regular, no_dead_strip", 1)       \
 696 /* Fix-and-Continue image marker.  */           \
 697 SECTION_FUNCTION (objc_image_info_section,      \
 698                   in_objc_image_info,           \
 699                   ".section __OBJC, __image_info, regular, no_dead_strip", 1)   \
 700 SECTION_FUNCTION (objc_class_names_section,     \
 701                 in_objc_class_names,            \
 702                 ".objc_class_names", 1) \
 703 SECTION_FUNCTION (objc_meth_var_names_section,  \
 704                 in_objc_meth_var_names,         \
 705                 ".objc_meth_var_names", 1)      \
 706 SECTION_FUNCTION (objc_meth_var_types_section,  \
 707                 in_objc_meth_var_types,         \
 708                 ".objc_meth_var_types", 1)      \
 709 SECTION_FUNCTION (objc_cls_refs_section,        \
 710                 in_objc_cls_refs,               \
 711                 ".objc_cls_refs", 1)            \
 712                                                 \
 713 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section,     \
 714                 in_machopic_lazy_symbol_ptr,            \
 715                 ".lazy_symbol_pointer", 0)      \
 716 SECTION_FUNCTION (machopic_nl_symbol_ptr_section,       \
 717                 in_machopic_nl_symbol_ptr,              \
 718                 ".non_lazy_symbol_pointer", 0)  \
 719 SECTION_FUNCTION (machopic_symbol_stub_section,         \
 720                 in_machopic_symbol_stub,                \
 721                 ".symbol_stub", 0)              \
 722 SECTION_FUNCTION (machopic_symbol_stub1_section,        \
 723                 in_machopic_symbol_stub1,               \
 724                 ".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
 725 SECTION_FUNCTION (machopic_picsymbol_stub_section,      \
 726                 in_machopic_picsymbol_stub,             \
 727                 ".picsymbol_stub", 0)           \
 728 SECTION_FUNCTION (machopic_picsymbol_stub1_section,     \
 729                 in_machopic_picsymbol_stub1,            \
 730                 ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
 731 SECTION_FUNCTION (darwin_exception_section,             \
 732                 in_darwin_exception,                    \
 733                 ".section __DATA,__gcc_except_tab", 0)  \
 734 SECTION_FUNCTION (darwin_eh_frame_section,              \
 735                 in_darwin_eh_frame,                     \
 736                 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" EH_FRAME_SECTION_ATTR, 0)  \
 737                                                         \
 738 static void                                     \
 739 objc_section_init (void)                        \
 740 {                                               \
 741   static int been_here = 0;                     \
 742                                                 \
 743   if (been_here == 0)                           \
 744     {                                           \
 745       been_here = 1;                            \
 746           /* written, cold -> hot */            \
 747       objc_cat_cls_meth_section ();             \
 748       objc_cat_inst_meth_section ();            \
 749       objc_string_object_section ();            \
 750       objc_constant_string_object_section ();   \
 751       objc_selector_refs_section ();            \
 752       objc_selector_fixup_section ();           \
 753       objc_cls_refs_section ();                 \
 754       objc_class_section ();                    \
 755       objc_meta_class_section ();               \
 756           /* shared, hot -> cold */             \
 757       objc_cls_meth_section ();                 \
 758       objc_inst_meth_section ();                \
 759       objc_protocol_section ();                 \
 760       objc_class_names_section ();              \
 761       objc_meth_var_types_section ();           \
 762       objc_meth_var_names_section ();           \
 763       objc_category_section ();                 \
 764       objc_class_vars_section ();               \
 765       objc_instance_vars_section ();            \
 766       objc_module_info_section ();              \
 767       objc_symbols_section ();                  \
 768     }                                           \
 769 }
 770
 771 #define READONLY_DATA_SECTION const_section
 772
 773 #undef  TARGET_ASM_SELECT_SECTION
 774 #define TARGET_ASM_SELECT_SECTION machopic_select_section
 775 #undef  TARGET_ASM_SELECT_RTX_SECTION
 776 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
 777 #undef  TARGET_ASM_UNIQUE_SECTION
 778 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
 779 #undef  TARGET_ASM_FUNCTION_RODATA_SECTION
 780 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
 781
 782
 783 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \
 784     do {                                                                \
 785          if (FILE) {                                                    \
 786            if (MACHOPIC_INDIRECT)                                       \
 787              fprintf (FILE, "\t.lazy_reference ");                      \
 788            else                                                         \
 789              fprintf (FILE, "\t.reference ");                           \
 790            assemble_name (FILE, NAME);                                  \
 791            fprintf (FILE, "\n");                                        \
 792          }                                                              \
 793        } while (0)
 794
 795 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \
 796     do {                                                                \
 797          if (FILE) {                                                    \
 798            fprintf (FILE, "\t");                                        \
 799            assemble_name (FILE, NAME);                                  \
 800            fprintf (FILE, "=0\n");                                      \
 801            (*targetm.asm_out.globalize_label) (FILE, NAME);             \
 802          }                                                              \
 803        } while (0)
 804
 805 /* Globalizing directive for a label.  */
 806 #define GLOBAL_ASM_OP ".globl "
 807 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
 808
 809 /* Emit an assembler directive to set visibility for a symbol.  Used
 810    to support visibility attribute and Darwin's private extern
 811    feature.  */
 812 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 813 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
 814
 815
 816 #undef ASM_GENERATE_INTERNAL_LABEL
 817 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
 818   sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
 819
 820 #undef TARGET_ASM_MARK_DECL_PRESERVED
 821 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
 822
 823 /* Since we have a separate readonly data section, define this so that
 824    jump tables end up in text rather than data.  */
 825
 826 #ifndef JUMP_TABLES_IN_TEXT_SECTION
 827 #define JUMP_TABLES_IN_TEXT_SECTION 1
 828 #endif
 829
 830 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
 831    MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
 832    variable has been defined in this translation unit.  */
 833
 834 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
 835 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
 836
 837 /* Set on a symbol to indicate when fix-and-continue style code
 838    generation is being used and the symbol refers to a static symbol
 839    that should be rebound from new instances of a translation unit to
 840    the original instance of the data.  */
 841
 842 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
 843
 844 /* Symbolic names for various things we might know about a symbol.  */
 845
 846 enum machopic_addr_class {
 847   MACHOPIC_UNDEFINED,
 848   MACHOPIC_DEFINED_DATA,
 849   MACHOPIC_UNDEFINED_DATA,
 850   MACHOPIC_DEFINED_FUNCTION,
 851   MACHOPIC_UNDEFINED_FUNCTION
 852 };
 853
 854 /* Macros defining the various PIC cases.  */
 855
 856 #define MACHO_DYNAMIC_NO_PIC_P  (TARGET_DYNAMIC_NO_PIC)
 857 #define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
 858 #define MACHOPIC_JUST_INDIRECT  (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
 859 #define MACHOPIC_PURE           (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
 860
 861 #undef TARGET_ENCODE_SECTION_INFO
 862 #define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info
 863 #undef TARGET_STRIP_NAME_ENCODING
 864 #define TARGET_STRIP_NAME_ENCODING  default_strip_name_encoding
 865
 866 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \
 867   do {                                                          \
 868     const char *const stub_ = (STUB);                           \
 869     char *buffer_ = (BUF);                                      \
 870     strcpy (buffer_, stub_);                                    \
 871     if (stub_[0] == '"')                                        \
 872       {                                                         \
 873         strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \
 874       }                                                         \
 875     else                                                        \
 876       {                                                         \
 877         strcpy (buffer_ + (STUB_LENGTH), "_binder");            \
 878       }                                                         \
 879   } while (0)
 880
 881 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)    \
 882   do {                                                          \
 883     const char *const symbol_ = (SYMBOL);                       \
 884     char *buffer_ = (BUF);                                      \
 885     if (name_needs_quotes (symbol_) && symbol_[0] != '"')       \
 886       {                                                         \
 887           sprintf (buffer_, "\"%s\"", symbol_);                 \
 888       }                                                         \
 889     else                                                        \
 890       {                                                         \
 891         strcpy (buffer_, symbol_);                              \
 892       }                                                         \
 893   } while (0)
 894
 895 /* Given a symbol name string, create the lazy pointer version
 896    of the symbol name.  */
 897
 898 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)  \
 899   do {                                                          \
 900     const char *symbol_ = (SYMBOL);                             \
 901     char *buffer_ = (BUF);                                      \
 902     if (symbol_[0] == '"')                                      \
 903       {                                                         \
 904         strcpy (buffer_, "\"L");                                \
 905         strcpy (buffer_ + 2, symbol_ + 1);                      \
 906         strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\"");      \
 907       }                                                         \
 908     else if (name_needs_quotes (symbol_))                       \
 909       {                                                         \
 910         strcpy (buffer_, "\"L");                                \
 911         strcpy (buffer_ + 2, symbol_);                          \
 912         strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\"");  \
 913       }                                                         \
 914     else                                                        \
 915       {                                                         \
 916         strcpy (buffer_, "L");                                  \
 917         strcpy (buffer_ + 1, symbol_);                          \
 918         strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr");    \
 919       }                                                         \
 920   } while (0)
 921
 922 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
 923
 924 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
 925
 926 #define EH_FRAME_SECTION_NAME   "__TEXT"
 927 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
 928
 929 #undef ASM_PREFERRED_EH_DATA_FORMAT
 930 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
 931   (((CODE) == 2 && (GLOBAL) == 1) \
 932    ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
 933      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
 934
 935 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
 936   darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
 937
 938 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)     \
 939       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                            \
 940         darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR);                                     \
 941         goto DONE;                                                                      \
 942       }
 943
 944
 945 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 946
 947 #undef TARGET_ASM_NAMED_SECTION
 948 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
 949 #undef TARGET_SECTION_TYPE_FLAGS
 950 #define TARGET_SECTION_TYPE_FLAGS darwin_section_type_flags
 951
 952 #define DARWIN_REGISTER_TARGET_PRAGMAS()                        \
 953   do {                                                          \
 954     c_register_pragma (0, "mark", darwin_pragma_ignore);        \
 955     c_register_pragma (0, "options", darwin_pragma_options);    \
 956     c_register_pragma (0, "segment", darwin_pragma_ignore);     \
 957     c_register_pragma (0, "unused", darwin_pragma_unused);      \
 958   } while (0)
 959
 960 #undef ASM_APP_ON
 961 #define ASM_APP_ON ""
 962 #undef ASM_APP_OFF
 963 #define ASM_APP_OFF ""
 964
 965 void darwin_register_frameworks (int);
 966 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
 967
 968 void add_framework_path (char *);
 969 #define TARGET_OPTF add_framework_path
 970
 971 #define TARGET_HAS_F_SETLKW
 972
 973 /* Darwin before 7.0 does not have C99 functions.   */
 974 #ifndef TARGET_C99_FUNCTIONS
 975 #define TARGET_C99_FUNCTIONS 0
 976 #endif
 977
 978 #define WINT_TYPE "int"
 979
 980 #endif /* CONFIG_DARWIN_H */