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    %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}\
 242    %{!Zdynamiclib: \
 243      %{Zbundle:-bundle} \
 244      %{Zbundle_loader*:-bundle_loader %*} \
 245      %{client_name*} \
 246      %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
 247 } \
 248      %{current_version*:%e-current_version only allowed with -dynamiclib} \
 249      %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
 250      %{Zforce_flat_namespace:-force_flat_namespace} \
 251      %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
 252      %{keep_private_externs} \
 253      %{private_bundle} \
 254     } \
 255    %{Zdynamiclib: \
 256      %{Zbundle:%e-bundle not allowed with -dynamiclib} \
 257      %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
 258      %{client_name*:%e-client_name not allowed with -dynamiclib} \
 259      %{compatibility_version*} \
 260      %{current_version*} \
 261      %{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
 262      %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
 263      %{Zinstall_name*:-install_name %*} \
 264      %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
 265      %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
 266     } \
 267    %{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
 268    %{Zallowable_client*:-allowable_client %*} \
 269    %{Zbind_at_load:-bind_at_load} \
 270    %{Zarch_errors_fatal:-arch_errors_fatal} \
 271    %{Zdead_strip:-dead_strip} \
 272    %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
 273    %{Zdylib_file*:-dylib_file %*} \
 274    %{Zdynamic:-dynamic}\
 275    %{Zexported_symbols_list*:-exported_symbols_list %*} \
 276    %{Zflat_namespace:-flat_namespace} \
 277    %{headerpad_max_install_names*} \
 278    %{Zimage_base*:-image_base %*} \
 279    %{Zinit*:-init %*} \
 280    %{nomultidefs} \
 281    %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
 282    %{Zmultiply_defined*:-multiply_defined %*} \
 283    %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
 284    %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
 285    %{read_only_relocs} \
 286    %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
 287    %{Zsegaddr*:-segaddr %*} \
 288    %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
 289    %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
 290    %{Zseg_addr_table*: -seg_addr_table %*} \
 291    %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
 292    %{sub_library*} %{sub_umbrella*} \
 293    %{twolevel_namespace} %{twolevel_namespace_hints} \
 294    %{umbrella*} \
 295    %{undefined*} \
 296    %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
 297    %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
 298    %{X} \
 299    %{y*} \
 300    %{w} \
 301    %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \
 302    %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
 303    %{whatsloaded} %{dylinker_install_name*} \
 304    %{dylinker} %{Mach} "
 305
 306
 307 /* Machine dependent libraries but do not redefine it if we already on 7.0 and
 308    above as it needs to link with libmx also.  */
 309
 310 #ifndef LIB_SPEC
 311 #define LIB_SPEC "%{!static:-lSystem}"
 312 #endif
 313
 314 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
 315
 316 #undef  STARTFILE_SPEC
 317 #define STARTFILE_SPEC  \
 318   "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
 319      %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
 320                      %{!static:%{object:-lgcrt0.o} \
 321                                %{!object:%{preload:-lgcrt0.o} \
 322                                  %{!preload:-lgcrt1.o crt2.o%s}}}} \
 323                 %{!pg:%{static:-lcrt0.o} \
 324                       %{!static:%{object:-lcrt0.o} \
 325                                 %{!object:%{preload:-lcrt0.o} \
 326                                   %{!preload:-lcrt1.o crt2.o%s}}}}}}"
 327
 328 /* The native Darwin linker doesn't necessarily place files in the order
 329    that they're specified on the link line.  Thus, it is pointless
 330    to put anything in ENDFILE_SPEC.  */
 331 /* #define ENDFILE_SPEC "" */
 332
 333 /* We use Dbx symbol format.  */
 334
 335 #define DBX_DEBUGGING_INFO 1
 336
 337 /* Also enable Dwarf 2 as an option.  */
 338 #define DWARF2_DEBUGGING_INFO
 339 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
 340
 341 #define DEBUG_FRAME_SECTION   "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
 342 #define DEBUG_INFO_SECTION    "__DWARFA,__debug_info"
 343 #define DEBUG_ABBREV_SECTION  "__DWARFA,__debug_abbrev"
 344 #define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
 345 #define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
 346 #define DEBUG_LINE_SECTION    "__DWARFA,__debug_line"
 347 #define DEBUG_LOC_SECTION     "__DWARFA,__debug_loc"
 348 #define DEBUG_PUBNAMES_SECTION        "__DWARFA,__debug_pubnames"
 349 #define DEBUG_STR_SECTION     "__DWARFA,__debug_str"
 350 #define DEBUG_RANGES_SECTION  "__DWARFA,__debug_ranges"
 351
 352 /* When generating stabs debugging, use N_BINCL entries.  */
 353
 354 #define DBX_USE_BINCL
 355
 356 /* There is no limit to the length of stabs strings.  */
 357
 358 #define DBX_CONTIN_LENGTH 0
 359
 360 /* gdb needs a null N_SO at the end of each file for scattered loading.  */
 361
 362 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 363 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 364 do { text_section ();                                                   \
 365      fprintf (FILE,                                                     \
 366               "\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO);   \
 367    } while (0)
 368
 369 /* Making a symbols weak on Darwin requires more than just setting DECL_WEAK. */
 370 #define MAKE_DECL_ONE_ONLY(DECL) darwin_make_decl_one_only (DECL)
 371
 372 /* Representation of linkonce symbols for the MACH-O assembler. Linkonce
 373    symbols must be given a special section *and* must be preceded by a
 374    special assembler directive. */
 375 #define ASM_MAKE_LABEL_LINKONCE(FILE,  NAME)                            \
 376  do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) {       \
 377   fputs (".weak_definition ", FILE); assemble_name (FILE, _x);          \
 378   fputs ("\n", FILE); }} while (0)
 379
 380 /* We support hidden visibility */
 381 #undef TARGET_SUPPORTS_HIDDEN
 382 #define TARGET_SUPPORTS_HIDDEN 1
 383
 384 /* The Darwin linker imposes two limitations on common symbols: they
 385    can't have hidden visibility, and they can't appear in dylibs.  As
 386    a consequence, we should never use common symbols to represent
 387    vague linkage. */
 388 #undef USE_COMMON_FOR_ONE_ONLY
 389 #define USE_COMMON_FOR_ONE_ONLY 0
 390
 391 /* The Darwin linker doesn't want coalesced symbols to appear in
 392    a static archive's table of contents. */
 393 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
 394 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
 395
 396 /* We make exception information linkonce. */
 397 #undef TARGET_USES_WEAK_UNWIND_INFO
 398 #define TARGET_USES_WEAK_UNWIND_INFO 1
 399
 400 /* We need to use a nonlocal label for the start of an EH frame: the
 401    Darwin linker requires that a coalesced section start with a label. */
 402 #undef FRAME_BEGIN_LABEL
 403 #define FRAME_BEGIN_LABEL "EH_frame"
 404
 405 /* Emit a label for the FDE corresponding to DECL.  EMPTY means
 406    emit a label for an empty FDE. */
 407 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
 408
 409 /* Our profiling scheme doesn't LP labels and counter words.  */
 410
 411 #define NO_PROFILE_COUNTERS     1
 412
 413 #undef  INIT_SECTION_ASM_OP
 414 #define INIT_SECTION_ASM_OP
 415
 416 #undef  INVOKE__main
 417
 418 #define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor
 419 #define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor
 420
 421 /* Always prefix with an underscore.  */
 422
 423 #define USER_LABEL_PREFIX "_"
 424
 425 /* Don't output a .file directive.  That is only used by the assembler for
 426    error reporting.  */
 427 #undef  TARGET_ASM_FILE_START_FILE_DIRECTIVE
 428 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
 429
 430 #undef  TARGET_ASM_FILE_END
 431 #define TARGET_ASM_FILE_END darwin_file_end
 432
 433 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
 434   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
 435
 436 /* Give ObjC methods pretty symbol names.  */
 437
 438 #undef  OBJC_GEN_METHOD_LABEL
 439 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 440   do { if (CAT_NAME)                                                    \
 441          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 442                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 443        else                                                             \
 444          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 445                   (CLASS_NAME), (SEL_NAME));                            \
 446      } while (0)
 447
 448 /* The RTTI data (e.g., __ti4name) is common and public (and static),
 449    but it does need to be referenced via indirect PIC data pointers.
 450    The machopic_define_symbol calls are telling the machopic subsystem
 451    that the name *is* defined in this module, so it doesn't need to
 452    make them indirect.  */
 453
 454 #undef ASM_DECLARE_OBJECT_NAME
 455 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
 456   do {                                                                  \
 457     const char *xname = NAME;                                           \
 458     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 459       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 460     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 461       if ((TREE_STATIC (DECL)                                           \
 462            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 463           || DECL_INITIAL (DECL))                                       \
 464         machopic_define_symbol (DECL_RTL (DECL));                       \
 465     if ((TREE_STATIC (DECL)                                             \
 466          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 467         || DECL_INITIAL (DECL))                                         \
 468       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 469     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 470     /* Darwin doesn't support zero-size objects, so give them a \
 471        byte.  */                                                        \
 472     if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0)                   \
 473       assemble_zeros (1);                                               \
 474   } while (0)
 475
 476 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 477   do {                                                                  \
 478     const char *xname = NAME;                                           \
 479     if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \
 480       xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \
 481     if (! DECL_ONE_ONLY (DECL) && ! DECL_WEAK (DECL))                   \
 482       if ((TREE_STATIC (DECL)                                           \
 483            && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))             \
 484           || DECL_INITIAL (DECL))                                       \
 485         machopic_define_symbol (DECL_RTL (DECL));                       \
 486     if ((TREE_STATIC (DECL)                                             \
 487          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 488         || DECL_INITIAL (DECL))                                         \
 489       (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \
 490     ASM_OUTPUT_LABEL (FILE, xname);                                     \
 491   } while (0)
 492
 493 #define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE)        \
 494   do {                                                          \
 495     ASM_OUTPUT_LABEL (FILE, NAME);                              \
 496     /* Darwin doesn't support zero-size objects, so give them a \
 497        byte.  */                                                \
 498     if ((SIZE) == 0)                                            \
 499       assemble_zeros (1);                                       \
 500   } while (0)
 501
 502 /* Wrap new method names in quotes so the assembler doesn't gag.
 503    Make Objective-C internal symbols local.  */
 504
 505 #undef  ASM_OUTPUT_LABELREF
 506 #define ASM_OUTPUT_LABELREF(FILE,NAME)                                       \
 507   do {                                                                       \
 508        const char *xname = (NAME);                                           \
 509        if (! strcmp (xname, "<pic base>"))                                   \
 510          machopic_output_function_base_name(FILE);                           \
 511        else if (xname[0] == '&' || xname[0] == '*')                          \
 512          {                                                                   \
 513            int len = strlen (xname);                                         \
 514            if (len > 6 && !strcmp ("$stub", xname + len - 5))                \
 515              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 516            else if (len > 7 && !strcmp ("$stub\"", xname + len - 6))         \
 517              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 518            else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
 519              machopic_validate_stub_or_non_lazy_ptr (xname);                 \
 520            fputs (&xname[1], FILE);                                          \
 521          }                                                                   \
 522        else if (xname[0] == '+' || xname[0] == '-')                          \
 523          fprintf (FILE, "\"%s\"", xname);                                    \
 524        else if (!strncmp (xname, "_OBJC_", 6))                               \
 525          fprintf (FILE, "L%s", xname);                                       \
 526        else if (!strncmp (xname, ".objc_class_name_", 17))                   \
 527          fprintf (FILE, "%s", xname);                                        \
 528        else                                                                  \
 529          asm_fprintf (FILE, "%U%s", xname);                                  \
 530   } while (0)
 531
 532 /* Output before executable code.  */
 533 #undef TEXT_SECTION_ASM_OP
 534 #define TEXT_SECTION_ASM_OP ".text"
 535
 536 /* Output before writable data.  */
 537
 538 #undef DATA_SECTION_ASM_OP
 539 #define DATA_SECTION_ASM_OP ".data"
 540
 541 #undef  ALIGN_ASM_OP
 542 #define ALIGN_ASM_OP            ".align"
 543
 544 #undef  ASM_OUTPUT_ALIGN
 545 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 546   if ((LOG) != 0)                       \
 547     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
 548
 549 /* Ensure correct alignment of bss data.  */
 550
 551 #undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL
 552 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \
 553   do {                                                                  \
 554     fputs (".lcomm ", (FILE));                                          \
 555     assemble_name ((FILE), (NAME));                                     \
 556     fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (SIZE),    \
 557              floor_log2 ((ALIGN) / BITS_PER_UNIT));                     \
 558     if ((DECL) && ((TREE_STATIC (DECL)                                  \
 559          && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \
 560         || DECL_INITIAL (DECL)))                                        \
 561       {                                                                 \
 562         (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
 563         machopic_define_symbol (DECL_RTL (DECL));                       \
 564       }                                                                 \
 565   } while (0)
 566
 567 /* The maximum alignment which the object file format can support.
 568    For Mach-O, this is 2^15.  */
 569
 570 #undef  MAX_OFILE_ALIGNMENT
 571 #define MAX_OFILE_ALIGNMENT 0x8000
 572
 573 /* Create new Mach-O sections.  */
 574
 575 #undef  SECTION_FUNCTION
 576 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)            \
 577 extern void FUNCTION (void);                                            \
 578 void                                                                    \
 579 FUNCTION (void)                                                         \
 580 {                                                                       \
 581   if (in_section != SECTION)                                            \
 582     {                                                                   \
 583       if (OBJC)                                                         \
 584         objc_section_init ();                                           \
 585       data_section ();                                                  \
 586       if (asm_out_file)                                                 \
 587         fprintf (asm_out_file, "%s\n", DIRECTIVE);                      \
 588       in_section = SECTION;                                             \
 589     }                                                                   \
 590 }                                                                       \
 591
 592 /* Darwin uses many types of special sections.  */
 593
 594 #undef  EXTRA_SECTIONS
 595 #define EXTRA_SECTIONS                                  \
 596   in_const, in_const_data, in_cstring, in_literal4, in_literal8,        \
 597   in_constructor, in_destructor, in_mod_init, in_mod_term,              \
 598   in_objc_class, in_objc_meta_class, in_objc_category,  \
 599   in_objc_class_vars, in_objc_instance_vars,            \
 600   in_objc_cls_meth, in_objc_inst_meth,                  \
 601   in_objc_cat_cls_meth, in_objc_cat_inst_meth,          \
 602   in_objc_selector_refs,                                \
 603   in_objc_selector_fixup,                               \
 604   in_objc_symbols, in_objc_module_info,                 \
 605   in_objc_protocol, in_objc_string_object,              \
 606   in_objc_constant_string_object,                       \
 607   in_objc_image_info,                                   \
 608   in_objc_class_names, in_objc_meth_var_names,          \
 609   in_objc_meth_var_types, in_objc_cls_refs,             \
 610   in_machopic_nl_symbol_ptr,                            \
 611   in_machopic_lazy_symbol_ptr,                          \
 612   in_machopic_symbol_stub,                              \
 613   in_machopic_symbol_stub1,                             \
 614   in_machopic_picsymbol_stub,                           \
 615   in_machopic_picsymbol_stub1,                          \
 616   in_darwin_exception, in_darwin_eh_frame,              \
 617   num_sections
 618
 619 #undef  EXTRA_SECTION_FUNCTIONS
 620 #define EXTRA_SECTION_FUNCTIONS                 \
 621 static void objc_section_init (void);           \
 622 SECTION_FUNCTION (const_section,                \
 623                   in_const,                     \
 624                   ".const", 0)                  \
 625 SECTION_FUNCTION (const_data_section,           \
 626                   in_const_data,                \
 627                   ".const_data", 0)             \
 628 SECTION_FUNCTION (cstring_section,              \
 629                   in_cstring,                   \
 630                   ".cstring", 0)                \
 631 SECTION_FUNCTION (literal4_section,             \
 632                   in_literal4,                  \
 633                   ".literal4", 0)               \
 634 SECTION_FUNCTION (literal8_section,             \
 635                   in_literal8,                  \
 636                   ".literal8", 0)               \
 637 SECTION_FUNCTION (constructor_section,          \
 638                   in_constructor,               \
 639                   ".constructor", 0)            \
 640 SECTION_FUNCTION (mod_init_section,             \
 641                   in_mod_init,                  \
 642                   ".mod_init_func", 0)  \
 643 SECTION_FUNCTION (mod_term_section, \
 644                   in_mod_term,                  \
 645                   ".mod_term_func", 0)  \
 646 SECTION_FUNCTION (destructor_section,           \
 647                   in_destructor,                \
 648                   ".destructor", 0)             \
 649 SECTION_FUNCTION (objc_class_section,           \
 650                   in_objc_class,                \
 651                   ".objc_class", 1)             \
 652 SECTION_FUNCTION (objc_meta_class_section,      \
 653                   in_objc_meta_class,           \
 654                   ".objc_meta_class", 1)        \
 655 SECTION_FUNCTION (objc_category_section,        \
 656                   in_objc_category,             \
 657                 ".objc_category", 1)            \
 658 SECTION_FUNCTION (objc_class_vars_section,      \
 659                   in_objc_class_vars,           \
 660                   ".objc_class_vars", 1)        \
 661 SECTION_FUNCTION (objc_instance_vars_section,   \
 662                   in_objc_instance_vars,        \
 663                   ".objc_instance_vars", 1)     \
 664 SECTION_FUNCTION (objc_cls_meth_section,        \
 665                   in_objc_cls_meth,             \
 666                   ".objc_cls_meth", 1)  \
 667 SECTION_FUNCTION (objc_inst_meth_section,       \
 668                   in_objc_inst_meth,            \
 669                   ".objc_inst_meth", 1) \
 670 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 671                   in_objc_cat_cls_meth,         \
 672                   ".objc_cat_cls_meth", 1)      \
 673 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 674                   in_objc_cat_inst_meth,        \
 675                   ".objc_cat_inst_meth", 1)     \
 676 SECTION_FUNCTION (objc_selector_refs_section,   \
 677                   in_objc_selector_refs,        \
 678                   ".objc_message_refs", 1)      \
 679 SECTION_FUNCTION (objc_selector_fixup_section,  \
 680                   in_objc_selector_fixup,       \
 681                   ".section __OBJC, __sel_fixup, regular, no_dead_strip", 1)    \
 682 SECTION_FUNCTION (objc_symbols_section,         \
 683                   in_objc_symbols,              \
 684                   ".objc_symbols", 1)   \
 685 SECTION_FUNCTION (objc_module_info_section,     \
 686                   in_objc_module_info,          \
 687                   ".objc_module_info", 1)       \
 688 SECTION_FUNCTION (objc_protocol_section,        \
 689                   in_objc_protocol,             \
 690                   ".objc_protocol", 1)  \
 691 SECTION_FUNCTION (objc_string_object_section,   \
 692                   in_objc_string_object,        \
 693                   ".objc_string_object", 1)     \
 694 SECTION_FUNCTION (objc_constant_string_object_section,  \
 695                   in_objc_constant_string_object,       \
 696                   ".section __OBJC, __cstring_object, regular, no_dead_strip", 1)       \
 697 /* Fix-and-Continue image marker.  */           \
 698 SECTION_FUNCTION (objc_image_info_section,      \
 699                   in_objc_image_info,           \
 700                   ".section __OBJC, __image_info, regular, no_dead_strip", 1)   \
 701 SECTION_FUNCTION (objc_class_names_section,     \
 702                 in_objc_class_names,            \
 703                 ".objc_class_names", 1) \
 704 SECTION_FUNCTION (objc_meth_var_names_section,  \
 705                 in_objc_meth_var_names,         \
 706                 ".objc_meth_var_names", 1)      \
 707 SECTION_FUNCTION (objc_meth_var_types_section,  \
 708                 in_objc_meth_var_types,         \
 709                 ".objc_meth_var_types", 1)      \
 710 SECTION_FUNCTION (objc_cls_refs_section,        \
 711                 in_objc_cls_refs,               \
 712                 ".objc_cls_refs", 1)            \
 713                                                 \
 714 SECTION_FUNCTION (machopic_lazy_symbol_ptr_section,     \
 715                 in_machopic_lazy_symbol_ptr,            \
 716                 ".lazy_symbol_pointer", 0)      \
 717 SECTION_FUNCTION (machopic_nl_symbol_ptr_section,       \
 718                 in_machopic_nl_symbol_ptr,              \
 719                 ".non_lazy_symbol_pointer", 0)  \
 720 SECTION_FUNCTION (machopic_symbol_stub_section,         \
 721                 in_machopic_symbol_stub,                \
 722                 ".symbol_stub", 0)              \
 723 SECTION_FUNCTION (machopic_symbol_stub1_section,        \
 724                 in_machopic_symbol_stub1,               \
 725                 ".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
 726 SECTION_FUNCTION (machopic_picsymbol_stub_section,      \
 727                 in_machopic_picsymbol_stub,             \
 728                 ".picsymbol_stub", 0)           \
 729 SECTION_FUNCTION (machopic_picsymbol_stub1_section,     \
 730                 in_machopic_picsymbol_stub1,            \
 731                 ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
 732 SECTION_FUNCTION (darwin_exception_section,             \
 733                 in_darwin_exception,                    \
 734                 ".section __DATA,__gcc_except_tab", 0)  \
 735 SECTION_FUNCTION (darwin_eh_frame_section,              \
 736                 in_darwin_eh_frame,                     \
 737                 ".section " EH_FRAME_SECTION_NAME ",__eh_frame" EH_FRAME_SECTION_ATTR, 0)  \
 738                                                         \
 739 static void                                     \
 740 objc_section_init (void)                        \
 741 {                                               \
 742   static int been_here = 0;                     \
 743                                                 \
 744   if (been_here == 0)                           \
 745     {                                           \
 746       been_here = 1;                            \
 747           /* written, cold -> hot */            \
 748       objc_cat_cls_meth_section ();             \
 749       objc_cat_inst_meth_section ();            \
 750       objc_string_object_section ();            \
 751       objc_constant_string_object_section ();   \
 752       objc_selector_refs_section ();            \
 753       objc_selector_fixup_section ();           \
 754       objc_cls_refs_section ();                 \
 755       objc_class_section ();                    \
 756       objc_meta_class_section ();               \
 757           /* shared, hot -> cold */             \
 758       objc_cls_meth_section ();                 \
 759       objc_inst_meth_section ();                \
 760       objc_protocol_section ();                 \
 761       objc_class_names_section ();              \
 762       objc_meth_var_types_section ();           \
 763       objc_meth_var_names_section ();           \
 764       objc_category_section ();                 \
 765       objc_class_vars_section ();               \
 766       objc_instance_vars_section ();            \
 767       objc_module_info_section ();              \
 768       objc_symbols_section ();                  \
 769     }                                           \
 770 }
 771
 772 #define READONLY_DATA_SECTION const_section
 773
 774 #undef  TARGET_ASM_SELECT_SECTION
 775 #define TARGET_ASM_SELECT_SECTION machopic_select_section
 776 #undef  TARGET_ASM_SELECT_RTX_SECTION
 777 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
 778 #undef  TARGET_ASM_UNIQUE_SECTION
 779 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
 780 #undef  TARGET_ASM_FUNCTION_RODATA_SECTION
 781 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
 782
 783
 784 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \
 785     do {                                                                \
 786          if (FILE) {                                                    \
 787            if (MACHOPIC_INDIRECT)                                       \
 788              fprintf (FILE, "\t.lazy_reference ");                      \
 789            else                                                         \
 790              fprintf (FILE, "\t.reference ");                           \
 791            assemble_name (FILE, NAME);                                  \
 792            fprintf (FILE, "\n");                                        \
 793          }                                                              \
 794        } while (0)
 795
 796 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \
 797     do {                                                                \
 798          if (FILE) {                                                    \
 799            fprintf (FILE, "\t");                                        \
 800            assemble_name (FILE, NAME);                                  \
 801            fprintf (FILE, "=0\n");                                      \
 802            (*targetm.asm_out.globalize_label) (FILE, NAME);             \
 803          }                                                              \
 804        } while (0)
 805
 806 /* Globalizing directive for a label.  */
 807 #define GLOBAL_ASM_OP ".globl "
 808 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
 809
 810 /* Emit an assembler directive to set visibility for a symbol.  Used
 811    to support visibility attribute and Darwin's private extern
 812    feature.  */
 813 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 814 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
 815
 816
 817 #undef ASM_GENERATE_INTERNAL_LABEL
 818 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
 819   sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
 820
 821 #undef TARGET_ASM_MARK_DECL_PRESERVED
 822 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
 823
 824 /* Since we have a separate readonly data section, define this so that
 825    jump tables end up in text rather than data.  */
 826
 827 #ifndef JUMP_TABLES_IN_TEXT_SECTION
 828 #define JUMP_TABLES_IN_TEXT_SECTION 1
 829 #endif
 830
 831 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or
 832    MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
 833    variable has been defined in this translation unit.  */
 834
 835 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
 836 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
 837
 838 /* Set on a symbol to indicate when fix-and-continue style code
 839    generation is being used and the symbol refers to a static symbol
 840    that should be rebound from new instances of a translation unit to
 841    the original instance of the data.  */
 842
 843 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
 844
 845 /* Symbolic names for various things we might know about a symbol.  */
 846
 847 enum machopic_addr_class {
 848   MACHOPIC_UNDEFINED,
 849   MACHOPIC_DEFINED_DATA,
 850   MACHOPIC_UNDEFINED_DATA,
 851   MACHOPIC_DEFINED_FUNCTION,
 852   MACHOPIC_UNDEFINED_FUNCTION
 853 };
 854
 855 /* Macros defining the various PIC cases.  */
 856
 857 #define MACHO_DYNAMIC_NO_PIC_P  (TARGET_DYNAMIC_NO_PIC)
 858 #define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
 859 #define MACHOPIC_JUST_INDIRECT  (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
 860 #define MACHOPIC_PURE           (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
 861
 862 #undef TARGET_ENCODE_SECTION_INFO
 863 #define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info
 864 #undef TARGET_STRIP_NAME_ENCODING
 865 #define TARGET_STRIP_NAME_ENCODING  default_strip_name_encoding
 866
 867 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \
 868   do {                                                          \
 869     const char *const stub_ = (STUB);                           \
 870     char *buffer_ = (BUF);                                      \
 871     strcpy (buffer_, stub_);                                    \
 872     if (stub_[0] == '"')                                        \
 873       {                                                         \
 874         strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \
 875       }                                                         \
 876     else                                                        \
 877       {                                                         \
 878         strcpy (buffer_ + (STUB_LENGTH), "_binder");            \
 879       }                                                         \
 880   } while (0)
 881
 882 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)    \
 883   do {                                                          \
 884     const char *const symbol_ = (SYMBOL);                       \
 885     char *buffer_ = (BUF);                                      \
 886     if (name_needs_quotes (symbol_) && symbol_[0] != '"')       \
 887       {                                                         \
 888           sprintf (buffer_, "\"%s\"", symbol_);                 \
 889       }                                                         \
 890     else                                                        \
 891       {                                                         \
 892         strcpy (buffer_, symbol_);                              \
 893       }                                                         \
 894   } while (0)
 895
 896 /* Given a symbol name string, create the lazy pointer version
 897    of the symbol name.  */
 898
 899 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH)  \
 900   do {                                                          \
 901     const char *symbol_ = (SYMBOL);                             \
 902     char *buffer_ = (BUF);                                      \
 903     if (symbol_[0] == '"')                                      \
 904       {                                                         \
 905         strcpy (buffer_, "\"L");                                \
 906         strcpy (buffer_ + 2, symbol_ + 1);                      \
 907         strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\"");      \
 908       }                                                         \
 909     else if (name_needs_quotes (symbol_))                       \
 910       {                                                         \
 911         strcpy (buffer_, "\"L");                                \
 912         strcpy (buffer_ + 2, symbol_);                          \
 913         strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\"");  \
 914       }                                                         \
 915     else                                                        \
 916       {                                                         \
 917         strcpy (buffer_, "L");                                  \
 918         strcpy (buffer_ + 1, symbol_);                          \
 919         strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr");    \
 920       }                                                         \
 921   } while (0)
 922
 923 #define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
 924
 925 #define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
 926
 927 #define EH_FRAME_SECTION_NAME   "__TEXT"
 928 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
 929
 930 #undef ASM_PREFERRED_EH_DATA_FORMAT
 931 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
 932   (((CODE) == 2 && (GLOBAL) == 1) \
 933    ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
 934      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
 935
 936 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
 937   darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
 938
 939 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)     \
 940       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                            \
 941         darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR);                                     \
 942         goto DONE;                                                                      \
 943       }
 944
 945
 946 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 947
 948 #undef TARGET_ASM_NAMED_SECTION
 949 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
 950 #undef TARGET_SECTION_TYPE_FLAGS
 951 #define TARGET_SECTION_TYPE_FLAGS darwin_section_type_flags
 952
 953 #define DARWIN_REGISTER_TARGET_PRAGMAS()                        \
 954   do {                                                          \
 955     c_register_pragma (0, "mark", darwin_pragma_ignore);        \
 956     c_register_pragma (0, "options", darwin_pragma_options);    \
 957     c_register_pragma (0, "segment", darwin_pragma_ignore);     \
 958     c_register_pragma (0, "unused", darwin_pragma_unused);      \
 959   } while (0)
 960
 961 #undef ASM_APP_ON
 962 #define ASM_APP_ON ""
 963 #undef ASM_APP_OFF
 964 #define ASM_APP_OFF ""
 965
 966 void darwin_register_frameworks (const char *, const char *, int);
 967 void darwin_register_objc_includes (const char *, const char *, int);
 968 #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
 969 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks
 970
 971 void add_framework_path (char *);
 972 #define TARGET_OPTF add_framework_path
 973
 974 #define TARGET_HAS_F_SETLKW
 975
 976 /* Darwin before 7.0 does not have C99 functions.   */
 977 #ifndef TARGET_C99_FUNCTIONS
 978 #define TARGET_C99_FUNCTIONS 0
 979 #endif
 980
 981 #define WINT_TYPE "int"
 982
 983 #endif /* CONFIG_DARWIN_H */