gcc/config/nextstep.h

   1 /* Operating system specific defines to be used when targeting GCC
   2    for NeXTSTEP.
   3    Copyright (C) 1989, 90-93, 1996, 1997 Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* Use new NeXT include file search path.
  23    In a cross compiler with NeXT as target, don't expect
  24    the host to use Next's directory scheme.  */
  25
  26 #ifndef CROSS_COMPILE
  27 #undef  INCLUDE_DEFAULTS
  28 #define INCLUDE_DEFAULTS                                \
  29   {                                                     \
  30     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },             \
  31     { LOCAL_INCLUDE_DIR, 0, 0, 1 },                     \
  32     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1 },             \
  33     { GCC_INCLUDE_DIR, "GCC", 0, 0 },                   \
  34     /* These are for fixincludes-fixed ansi/bsd headers \
  35        which wouldn't be found otherwise.               \
  36        (The use of string catenation here is OK since   \
  37         NeXT's native compiler is derived from GCC.) */ \
  38     { GCC_INCLUDE_DIR "/ansi", 0, 0, 0 },               \
  39     { GCC_INCLUDE_DIR "/bsd", 0, 0, 0 },                \
  40     { "/NextDeveloper/Headers", 0, 0, 0 },              \
  41     { "/NextDeveloper/Headers/ansi", 0, 0, 0 },         \
  42     { "/NextDeveloper/Headers/bsd", 0, 0, 0 },          \
  43     { "/LocalDeveloper/Headers", 0, 0, 0 },             \
  44     { "/LocalDeveloper/Headers/ansi", 0, 0, 0 },        \
  45     { "/LocalDeveloper/Headers/bsd", 0, 0, 0 },         \
  46     { "/NextDeveloper/2.0CompatibleHeaders", 0, 0, 0 }, \
  47     { STANDARD_INCLUDE_DIR, 0, 0, 0 },                  \
  48     { "/usr/include/bsd", 0, 0, 0 },                    \
  49     { 0, 0, 0, 0 }                                      \
  50   }
  51 #else /* CROSS_COMPILE */
  52 #undef  INCLUDE_DEFAULTS
  53 #define INCLUDE_DEFAULTS                                \
  54   {                                                     \
  55     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },             \
  56     { GPLUSPLUS_INCLUDE_DIR, 0, 1, 1 },                 \
  57     { LOCAL_INCLUDE_DIR, 0, 0, 1 },                     \
  58     { GCC_INCLUDE_DIR, "GCC", 0, 0 },                   \
  59     { GCC_INCLUDE_DIR "/ansi", 0, 0, 0 },               \
  60     { GCC_INCLUDE_DIR "/bsd", 0, 0, 0 },                \
  61     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1 },             \
  62     { TOOL_INCLUDE_DIR "/ansi", 0, 0, 0 },              \
  63     { TOOL_INCLUDE_DIR "/bsd", 0, 0, 0 },               \
  64     { STANDARD_INCLUDE_DIR, 0, 0, 0 },                  \
  65     { "/usr/include/bsd", 0, 0, 0 },                    \
  66     { 0, 0, 0, 0 }                                      \
  67   }
  68 #endif /* CROSS_COMPILE */
  69
  70 #undef  EXTRA_FORMAT_FUNCTIONS
  71 #define EXTRA_FORMAT_FUNCTIONS \
  72       "NXPrintf",       FALSE,  2,      FALSE,  \
  73       "NXScanf",        TRUE,   2,      FALSE,  \
  74       "NXVPrintf",      FALSE,  2,      TRUE,   \
  75       "NXVScanf",       TRUE,   2,      TRUE,   \
  76       "DPSPrintf",      FALSE,  2,      FALSE,  \
  77       "bsd_sprintf",    FALSE,  2,      FALSE,  \
  78       "bsd_vsprintf",   FALSE,  2,      TRUE,
  79
  80 /* Make -fnext-runtime the default.  */
  81
  82 #define NEXT_OBJC_RUNTIME
  83
  84 /* We have atexit.  */
  85
  86 #define HAVE_ATEXIT
  87
  88 /* Enable recent gcc to compile under the old gcc in Next release 1.0.  */
  89
  90 #define __inline inline
  91
  92 /* wchar_t is unsigned short */
  93
  94 #undef  WCHAR_TYPE
  95 #define WCHAR_TYPE "short unsigned int"
  96 #undef  WCHAR_TYPE_SIZE
  97 #define WCHAR_TYPE_SIZE (BITS_PER_WORD / 2)
  98
  99 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
 100    we want to retain compatibility with older gcc versions.  */
 101
 102 #undef  DEFAULT_PCC_STRUCT_RETURN
 103 #define DEFAULT_PCC_STRUCT_RETURN 0
 104
 105 /* These compiler options take n arguments.  */
 106
 107 #undef  WORD_SWITCH_TAKES_ARG
 108 #define WORD_SWITCH_TAKES_ARG(STR)              \
 109   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
 110    !strcmp (STR, "segalign") ? 1 :              \
 111    !strcmp (STR, "seg1addr") ? 1 :              \
 112    !strcmp (STR, "segaddr") ? 2 :               \
 113    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
 114    !strcmp (STR, "segprot") ? 3 :               \
 115    !strcmp (STR, "sectcreate") ? 3 :            \
 116    !strcmp (STR, "sectalign") ? 3 :             \
 117    !strcmp (STR, "segcreate") ? 3 :             \
 118    !strcmp (STR, "sectorder") ? 3 :             \
 119    !strcmp (STR, "siff-mask") ? 1 :             \
 120    !strcmp (STR, "siff-filter") ? 1 :           \
 121    !strcmp (STR, "siff-warning") ? 1 :          \
 122    !strcmp (STR, "arch") ? 1 :                  \
 123    !strcmp (STR, "pagezero_size") ? 1 :         \
 124    0)
 125
 126 #undef  WORD_SWITCH
 127 #define WORD_SWITCH(STR)                        \
 128   (WORD_SWITCH_TAKES_ARG (STR)                  \
 129    || !strcmp (STR, "bsd")                      \
 130    || !strcmp (STR, "object")                   \
 131    || !strcmp (STR, "ObjC")                     \
 132    || !strcmp (STR, "all_load"))
 133
 134 /* Machine dependent ccp options.  */
 135
 136 #undef  CPP_SPEC
 137 #define CPP_SPEC "%{!traditional: -D__STDC__}            \
 138                   %{posixstrict:-D_POSIX_SOURCE}         \
 139                   %{!posixstrict:%{bsd:-D__STRICT_BSD__} \
 140                   %{posix:-D_POSIX_SOURCE}               \
 141                   %{!ansi:-D_NEXT_SOURCE}}               \
 142                   %{MD:-MD %M} %{MMD:-MMD %M}"
 143
 144 /* Machine dependent ld options.  */
 145
 146 #undef  LINK_SPEC
 147 #define LINK_SPEC "%{Z} %{M} \
 148 %{execute*} %{preload*} %{fvmlib*} \
 149 %{segalign*} %{seg1addr*} %{segaddr*} %{segprot*} \
 150 %{pagezero_size*} \
 151 %{seglinkedit*} %{noseglinkedit*} \
 152 %{sectcreate*} %{sectalign*} %{sectobjectsymbols}\
 153 %{segcreate*} %{Mach*} %{whyload} %{w} \
 154 %{sectorder*} %{whatsloaded} %{ObjC} %{all_load} %{object}"
 155
 156 /* Machine dependent libraries.  */
 157
 158 #undef  LIB_SPEC
 159 #define LIB_SPEC "%{!posix*:-lsys_s} %{posix*:-lposix}"
 160
 161 /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
 162
 163 #undef  STARTFILE_SPEC
 164 #define STARTFILE_SPEC  \
 165     "%{!posix*:%{pg:-lgcrt0.o}%{!pg: \
 166      %{p:%e-p profiling is no longer supported.  Use -pg instead.} \
 167      %{!p:-lcrt0.o}}}\
 168      %{posix*:%{pg:-lgposixcrt0.o}%{!pg: \
 169      %{p:%e-p profiling is no longer supported.  Use -pg instead.} \
 170      %{!p:-lposixcrt0.o}}}"
 171
 172 /* Allow #sscs (but don't do anything). */
 173
 174 #define SCCS_DIRECTIVE
 175
 176 /* We use Dbx symbol format.  */
 177
 178 #undef  SDB_DEBUGGING_INFO
 179 #undef  XCOFF_DEBUGGING_INFO
 180 #define DBX_DEBUGGING_INFO
 181
 182 /* This saves a fair amount of space. */
 183
 184 #undef  DBX_CONTIN_LENGTH
 185 #define DBX_CONTIN_LENGTH 0
 186
 187 /* These screw up NeXT's gdb at the moment, so don't use them. */
 188
 189 #undef  DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
 190 #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(FILE, FILENAME)
 191
 192 /* These come from bsd386.h, but are specific to sequent, so make sure
 193    they don't bite us.  */
 194
 195 #undef  DBX_NO_XREFS
 196 #undef  DBX_CONTIN_LENGTH
 197
 198 /* gdb needs a null N_SO at the end of each file for scattered loading. */
 199
 200 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 201 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 202   fprintf (FILE,                                                        \
 203            "\t.text\n\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n",         \
 204            "" , N_SO)
 205
 206 /* Don't use .gcc_compiled symbols to communicate with GDB;
 207    They interfere with numerically sorted symbol lists. */
 208
 209 #undef  ASM_IDENTIFY_GCC
 210 #define ASM_IDENTIFY_GCC(asm_out_file)
 211 #undef  INIT_SECTION_ASM_OP
 212 #define INIT_SECTION_ASM_OP
 213 #undef  INVOKE__main
 214
 215 #undef  ASM_OUTPUT_CONSTRUCTOR
 216 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)                       \
 217   do { constructor_section ();                                  \
 218        ASM_OUTPUT_ALIGN (FILE, 1);                              \
 219        fprintf (FILE, "\t.long ");                              \
 220        assemble_name (FILE, NAME);                              \
 221        fprintf (FILE, "\n");                                    \
 222        fprintf (FILE, ".reference .constructors_used\n");       \
 223       } while (0)
 224
 225 #undef  ASM_OUTPUT_DESTRUCTOR
 226 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)                        \
 227   do { destructor_section ();                                   \
 228        ASM_OUTPUT_ALIGN (FILE, 1);                              \
 229        fprintf (FILE, "\t.long ");                              \
 230        assemble_name (FILE, NAME);                              \
 231        fprintf (FILE, "\n");                                    \
 232        fprintf (FILE, ".reference .destructors_used\n");        \
 233       } while (0)
 234
 235 /* Don't output a .file directive.  That is only used by the assembler for
 236    error reporting.  */
 237 #undef  ASM_FILE_START
 238 #define ASM_FILE_START(FILE)
 239
 240 #undef  ASM_FILE_END
 241 #define ASM_FILE_END(FILE)                                      \
 242   do {                                                          \
 243     extern char *language_string;                               \
 244     if (strcmp (language_string, "GNU C++") == 0)               \
 245       {                                                         \
 246         constructor_section ();                                 \
 247         destructor_section ();                                  \
 248         ASM_OUTPUT_ALIGN (FILE, 1);                             \
 249       }                                                         \
 250   } while (0)
 251
 252 /* How to parse #pragma's */
 253
 254 #undef  HANDLE_PRAGMA
 255 #define HANDLE_PRAGMA(GETC, UNGETC, NAME) handle_pragma (GETC, UNGETC, NAME)
 256 extern int handle_pragma ();
 257
 258 /* Give methods pretty symbol names on NeXT. */
 259
 260 #undef  OBJC_GEN_METHOD_LABEL
 261 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 262   do { if (CAT_NAME)                                                    \
 263          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 264                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 265        else                                                             \
 266          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 267                   (CLASS_NAME), (SEL_NAME));                            \
 268      } while (0)
 269
 270 /* The prefix to add to user-visible assembler symbols. */
 271
 272 #undef USER_LABEL_PREFIX
 273 #define USER_LABEL_PREFIX "_"
 274
 275 /* Wrap new method names in quotes so the assembler doesn't gag.
 276    Make Objective-C internal symbols local.  */
 277
 278 #undef  ASM_OUTPUT_LABELREF
 279 #define ASM_OUTPUT_LABELREF(FILE,NAME)  \
 280   do { if (NAME[0] == '+' || NAME[0] == '-') fprintf (FILE, "\"%s\"", NAME); \
 281        else if (!strncmp (NAME, "_OBJC_", 6)) fprintf (FILE, "L%s", NAME);   \
 282        else if (!strncmp (NAME, ".objc_class_name_", 17))               \
 283          fprintf (FILE, "%s", NAME);                                    \
 284        else fprintf (FILE, "%s%s", USER_LABEL_PREFIX, NAME); } while (0)
 285
 286 #undef  ALIGN_ASM_OP
 287 #define ALIGN_ASM_OP            ".align"
 288
 289 #undef  ASM_OUTPUT_ALIGN
 290 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 291   if ((LOG) != 0)                       \
 292     fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
 293
 294 /* Ensure correct alignment of bss data.  */
 295
 296 #undef  ASM_OUTPUT_ALIGNED_LOCAL
 297 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
 298 ( fputs (".lcomm ", (FILE)),                            \
 299   assemble_name ((FILE), (NAME)),                       \
 300   fprintf ((FILE), ",%u,%u\n", (SIZE), floor_log2 ((ALIGN) / BITS_PER_UNIT)))
 301
 302 /* Output #ident as a .ident.  */
 303
 304 #undef  ASM_OUTPUT_IDENT
 305 #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
 306
 307 /* The maximum alignment which the object file format can support.
 308    For NeXT's Mach-O format, this is 2^15.  */
 309
 310 #undef  MAX_OFILE_ALIGNMENT
 311 #define MAX_OFILE_ALIGNMENT 0x8000
 312
 313 /* Create new Mach-O sections. */
 314
 315 #undef  SECTION_FUNCTION
 316 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, WAS_TEXT, OBJC)  \
 317 void                                                                    \
 318 FUNCTION ()                                                             \
 319 {                                                                       \
 320   extern void text_section ();                                          \
 321   extern void objc_section_init ();                                     \
 322   extern int flag_no_mach_text_sections;                                \
 323                                                                         \
 324   if (WAS_TEXT && flag_no_mach_text_sections)                           \
 325     text_section ();                                                    \
 326   else if (in_section != SECTION)                                       \
 327     {                                                                   \
 328       if (OBJC)                                                         \
 329         objc_section_init ();                                           \
 330       fprintf (asm_out_file, "%s\n", DIRECTIVE);                        \
 331       in_section = SECTION;                                             \
 332     }                                                                   \
 333 }                                                                       \
 334
 335 #undef  EXTRA_SECTIONS
 336 #define EXTRA_SECTIONS                                  \
 337   in_const, in_cstring, in_literal4, in_literal8,       \
 338   in_constructor, in_destructor,                        \
 339   in_objc_class, in_objc_meta_class, in_objc_category,  \
 340   in_objc_class_vars, in_objc_instance_vars,            \
 341   in_objc_cls_meth, in_objc_inst_meth,                  \
 342   in_objc_cat_cls_meth, in_objc_cat_inst_meth,          \
 343   in_objc_selector_refs,                                \
 344   in_objc_symbols, in_objc_module_info,                 \
 345   in_objc_protocol, in_objc_string_object,              \
 346   in_objc_class_names, in_objc_meth_var_names,          \
 347   in_objc_meth_var_types, in_objc_cls_refs
 348
 349 #undef  EXTRA_SECTION_FUNCTIONS
 350 #define EXTRA_SECTION_FUNCTIONS                 \
 351 SECTION_FUNCTION (const_section,                \
 352                   in_const,                     \
 353                   ".const", 1, 0)               \
 354 SECTION_FUNCTION (cstring_section,              \
 355                   in_cstring,                   \
 356                   ".cstring", 1, 0)             \
 357 SECTION_FUNCTION (literal4_section,             \
 358                   in_literal4,                  \
 359                   ".literal4", 1, 0)            \
 360 SECTION_FUNCTION (literal8_section,             \
 361                   in_literal8,                  \
 362                   ".literal8", 1, 0)            \
 363 SECTION_FUNCTION (constructor_section,          \
 364                   in_constructor,               \
 365                   ".constructor", 0, 0)         \
 366 SECTION_FUNCTION (destructor_section,           \
 367                   in_destructor,                \
 368                   ".destructor", 0, 0)          \
 369 SECTION_FUNCTION (objc_class_section,           \
 370                   in_objc_class,                \
 371                   ".objc_class", 0, 1)          \
 372 SECTION_FUNCTION (objc_meta_class_section,      \
 373                   in_objc_meta_class,           \
 374                   ".objc_meta_class", 0, 1)     \
 375 SECTION_FUNCTION (objc_category_section,        \
 376                   in_objc_category,             \
 377                 ".objc_category", 0, 1)         \
 378 SECTION_FUNCTION (objc_class_vars_section,      \
 379                   in_objc_class_vars,           \
 380                   ".objc_class_vars", 0, 1)     \
 381 SECTION_FUNCTION (objc_instance_vars_section,   \
 382                   in_objc_instance_vars,        \
 383                   ".objc_instance_vars", 0, 1)  \
 384 SECTION_FUNCTION (objc_cls_meth_section,        \
 385                   in_objc_cls_meth,             \
 386                   ".objc_cls_meth", 0, 1)       \
 387 SECTION_FUNCTION (objc_inst_meth_section,       \
 388                   in_objc_inst_meth,            \
 389                   ".objc_inst_meth", 0, 1)      \
 390 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 391                   in_objc_cat_cls_meth,         \
 392                   ".objc_cat_cls_meth", 0, 1)   \
 393 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 394                   in_objc_cat_inst_meth,        \
 395                   ".objc_cat_inst_meth", 0, 1)  \
 396 SECTION_FUNCTION (objc_selector_refs_section,   \
 397                   in_objc_selector_refs,        \
 398                   ".objc_message_refs", 0, 1)   \
 399 SECTION_FUNCTION (objc_symbols_section,         \
 400                   in_objc_symbols,              \
 401                   ".objc_symbols", 0, 1)        \
 402 SECTION_FUNCTION (objc_module_info_section,     \
 403                   in_objc_module_info,          \
 404                   ".objc_module_info", 0, 1)    \
 405 SECTION_FUNCTION (objc_protocol_section,        \
 406                   in_objc_protocol,             \
 407                   ".objc_protocol", 0, 1)       \
 408 SECTION_FUNCTION (objc_string_object_section,   \
 409                   in_objc_string_object,        \
 410                   ".objc_string_object", 0, 1)  \
 411 SECTION_FUNCTION (objc_class_names_section,     \
 412                 in_objc_class_names,            \
 413                 ".objc_class_names", 0, 1)      \
 414 SECTION_FUNCTION (objc_meth_var_names_section,  \
 415                 in_objc_meth_var_names,         \
 416                 ".objc_meth_var_names", 0, 1)   \
 417 SECTION_FUNCTION (objc_meth_var_types_section,  \
 418                 in_objc_meth_var_types,         \
 419                 ".objc_meth_var_types", 0, 1)   \
 420 SECTION_FUNCTION (objc_cls_refs_section,        \
 421                 in_objc_cls_refs,               \
 422                 ".objc_cls_refs", 0, 1)         \
 423                                                 \
 424 void                                            \
 425 objc_section_init ()                            \
 426 {                                               \
 427   static int been_here = 0;                     \
 428                                                 \
 429   if (been_here == 0)                           \
 430     {                                           \
 431       been_here = 1;                            \
 432       objc_class_section ();                    \
 433       objc_meta_class_section ();               \
 434       objc_cat_cls_meth_section ();             \
 435       objc_cat_inst_meth_section ();            \
 436       objc_cls_meth_section ();                 \
 437       objc_inst_meth_section ();                \
 438       objc_selector_refs_section ();            \
 439       objc_symbols_section ();                  \
 440       objc_category_section ();                 \
 441       objc_protocol_section ();                 \
 442       objc_class_vars_section ();               \
 443       objc_instance_vars_section ();            \
 444       objc_module_info_section ();              \
 445       objc_string_object_section ();            \
 446       objc_class_names_section ();              \
 447       objc_meth_var_names_section ();           \
 448       objc_meth_var_types_section ();           \
 449       objc_cls_refs_section ();                 \
 450     }                                           \
 451 }
 452
 453 #undef  READONLY_DATA_SECTION
 454 #define READONLY_DATA_SECTION const_section
 455
 456 #undef  SELECT_SECTION
 457 #define SELECT_SECTION(exp,reloc)                               \
 458   do                                                            \
 459     {                                                           \
 460       if (TREE_CODE (exp) == STRING_CST)                        \
 461         {                                                       \
 462           if (flag_writable_strings)                            \
 463             data_section ();                                    \
 464           else if (TREE_STRING_LENGTH (exp) !=                  \
 465                    strlen (TREE_STRING_POINTER (exp)) + 1)      \
 466             readonly_data_section ();                           \
 467           else                                                  \
 468             cstring_section ();                                 \
 469         }                                                       \
 470       else if (TREE_CODE (exp) == INTEGER_CST                   \
 471                || TREE_CODE (exp) == REAL_CST)                  \
 472         {                                                       \
 473           tree size = TYPE_SIZE (TREE_TYPE (exp));              \
 474                                                                 \
 475           if (TREE_CODE (size) == INTEGER_CST &&                \
 476               TREE_INT_CST_LOW (size) == 4 &&                   \
 477               TREE_INT_CST_HIGH (size) == 0)                    \
 478             literal4_section ();                                \
 479           else if (TREE_CODE (size) == INTEGER_CST &&           \
 480               TREE_INT_CST_LOW (size) == 8 &&                   \
 481               TREE_INT_CST_HIGH (size) == 0)                    \
 482             literal8_section ();                                \
 483           else                                                  \
 484             readonly_data_section ();                           \
 485         }                                                       \
 486       else if (TREE_CODE (exp) == CONSTRUCTOR                           \
 487                && TREE_TYPE (exp)                                       \
 488                && TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE            \
 489                && TYPE_NAME (TREE_TYPE (exp))                           \
 490                && TREE_CODE (TYPE_NAME (TREE_TYPE (exp))) == IDENTIFIER_NODE \
 491                && IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))))     \
 492         {                                                               \
 493           if (!strcmp (IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))), \
 494                         "NXConstantString"))                            \
 495           objc_string_object_section ();                                \
 496         else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))           \
 497                 && !TREE_SIDE_EFFECTS (exp))                            \
 498           readonly_data_section ();                                     \
 499         else                                                            \
 500           data_section ();                                              \
 501       }                                                                 \
 502       else if (TREE_CODE (exp) == VAR_DECL &&                           \
 503                DECL_NAME (exp) &&                                       \
 504                TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE &&        \
 505                IDENTIFIER_POINTER (DECL_NAME (exp)) &&                  \
 506                !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) \
 507         {                                                               \
 508           const char *name = IDENTIFIER_POINTER (DECL_NAME (exp));      \
 509                                                                         \
 510           if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20))              \
 511             objc_cls_meth_section ();                                   \
 512           else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23))      \
 513             objc_inst_meth_section ();                                  \
 514           else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) \
 515             objc_cat_cls_meth_section ();                               \
 516           else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) \
 517             objc_cat_inst_meth_section ();                              \
 518           else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22))       \
 519             objc_class_vars_section ();                                 \
 520           else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25))    \
 521             objc_instance_vars_section ();                              \
 522           else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22))       \
 523             objc_cat_cls_meth_section ();                               \
 524           else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17))            \
 525             objc_class_names_section ();                                \
 526           else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20))         \
 527             objc_meth_var_names_section ();                             \
 528           else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20))         \
 529             objc_meth_var_types_section ();                             \
 530           else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22))       \
 531             objc_cls_refs_section ();                                   \
 532           else if (!strncmp (name, "_OBJC_CLASS_", 12))                 \
 533             objc_class_section ();                                      \
 534           else if (!strncmp (name, "_OBJC_METACLASS_", 16))             \
 535             objc_meta_class_section ();                                 \
 536           else if (!strncmp (name, "_OBJC_CATEGORY_", 15))              \
 537             objc_category_section ();                                   \
 538           else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25))    \
 539             objc_selector_refs_section ();                              \
 540           else if (!strncmp (name, "_OBJC_SYMBOLS", 13))                \
 541             objc_symbols_section ();                                    \
 542           else if (!strncmp (name, "_OBJC_MODULES", 13))                \
 543             objc_module_info_section ();                                \
 544           else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32)) \
 545             objc_cat_inst_meth_section ();                              \
 546           else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29)) \
 547             objc_cat_cls_meth_section ();                               \
 548           else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20))         \
 549             objc_cat_cls_meth_section ();                               \
 550           else if (!strncmp (name, "_OBJC_PROTOCOL_", 15))              \
 551             objc_protocol_section ();                                   \
 552           else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))         \
 553                 && !TREE_SIDE_EFFECTS (exp))                            \
 554             readonly_data_section ();                                   \
 555           else                                                          \
 556             data_section ();                                            \
 557         }                                                               \
 558       else if (TREE_CODE (exp) == VAR_DECL)                             \
 559         {                                                               \
 560           if ((flag_pic && reloc)                                       \
 561               || !TREE_READONLY (exp) || TREE_SIDE_EFFECTS (exp)        \
 562               || !DECL_INITIAL (exp)                                    \
 563               || (DECL_INITIAL (exp) != error_mark_node                 \
 564                   && !TREE_CONSTANT (DECL_INITIAL (exp))))              \
 565             data_section ();                                            \
 566           else                                                          \
 567             readonly_data_section ();                                   \
 568         }                                                               \
 569       else                                                              \
 570         readonly_data_section ();                                       \
 571     }                                                                   \
 572   while (0)
 573
 574 #undef  SELECT_RTX_SECTION
 575 #define SELECT_RTX_SECTION(mode, rtx)                                   \
 576   do                                                                    \
 577     {                                                                   \
 578       if (GET_MODE_SIZE(mode) == 8)                                     \
 579         literal8_section();                                             \
 580       else if (GET_MODE_SIZE(mode) == 4)                                \
 581         literal4_section();                                             \
 582       else                                                              \
 583         const_section ();                                               \
 584     }                                                                   \
 585   while (0)
 586
 587 #ifdef ASM_COMMENT_START
 588 # undef ASM_COMMENT_START
 589 #endif
 590
 591 #define ASM_COMMENT_START ";#"