gcc/config/nextstep.h

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