gcc/config/nextstep.h

   1 /* Operating system specific defines to be used when targeting GCC
   2    for NeXTSTEP.
   3    Copyright (C) 1989, 1990, 1991, 1992, 1993, 1996, 1997,
   4    1999 Free Software Foundation, Inc.
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC 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 GNU CC 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 GNU CC; 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 /* Use new NeXT include file search path.
  24    In a cross compiler with NeXT as target, don't expect
  25    the host to use Next's directory scheme.  */
  26
  27 #ifndef CROSS_COMPILE
  28 #undef  INCLUDE_DEFAULTS
  29 #define INCLUDE_DEFAULTS                                \
  30   {                                                     \
  31     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },             \
  32     { LOCAL_INCLUDE_DIR, 0, 0, 1 },                     \
  33     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1 },             \
  34     { GCC_INCLUDE_DIR, "GCC", 0, 0 },                   \
  35     /* These are for fixincludes-fixed ansi/bsd headers \
  36        which wouldn't be found otherwise.               \
  37        (The use of string catenation here is OK since   \
  38         NeXT's native compiler is derived from GCC.) */ \
  39     { GCC_INCLUDE_DIR "/ansi", 0, 0, 0 },               \
  40     { GCC_INCLUDE_DIR "/bsd", 0, 0, 0 },                \
  41     { "/NextDeveloper/Headers", 0, 0, 0 },              \
  42     { "/NextDeveloper/Headers/ansi", 0, 0, 0 },         \
  43     { "/NextDeveloper/Headers/bsd", 0, 0, 0 },          \
  44     { "/LocalDeveloper/Headers", 0, 0, 0 },             \
  45     { "/LocalDeveloper/Headers/ansi", 0, 0, 0 },        \
  46     { "/LocalDeveloper/Headers/bsd", 0, 0, 0 },         \
  47     { "/NextDeveloper/2.0CompatibleHeaders", 0, 0, 0 }, \
  48     { STANDARD_INCLUDE_DIR, 0, 0, 0 },                  \
  49     { "/usr/include/bsd", 0, 0, 0 },                    \
  50     { 0, 0, 0, 0 }                                      \
  51   }
  52 #else /* CROSS_COMPILE */
  53 #undef  INCLUDE_DEFAULTS
  54 #define INCLUDE_DEFAULTS                                \
  55   {                                                     \
  56     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },             \
  57     { GPLUSPLUS_INCLUDE_DIR, 0, 1, 1 },                 \
  58     { LOCAL_INCLUDE_DIR, 0, 0, 1 },                     \
  59     { GCC_INCLUDE_DIR, "GCC", 0, 0 },                   \
  60     { GCC_INCLUDE_DIR "/ansi", 0, 0, 0 },               \
  61     { GCC_INCLUDE_DIR "/bsd", 0, 0, 0 },                \
  62     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1 },             \
  63     { TOOL_INCLUDE_DIR "/ansi", 0, 0, 0 },              \
  64     { TOOL_INCLUDE_DIR "/bsd", 0, 0, 0 },               \
  65     { STANDARD_INCLUDE_DIR, 0, 0, 0 },                  \
  66     { "/usr/include/bsd", 0, 0, 0 },                    \
  67     { 0, 0, 0, 0 }                                      \
  68   }
  69 #endif /* CROSS_COMPILE */
  70
  71 #undef  EXTRA_FORMAT_FUNCTIONS
  72 #define EXTRA_FORMAT_FUNCTIONS \
  73       "NXPrintf",       FALSE,  2,      FALSE,  \
  74       "NXScanf",        TRUE,   2,      FALSE,  \
  75       "NXVPrintf",      FALSE,  2,      TRUE,   \
  76       "NXVScanf",       TRUE,   2,      TRUE,   \
  77       "DPSPrintf",      FALSE,  2,      FALSE,  \
  78       "bsd_sprintf",    FALSE,  2,      FALSE,  \
  79       "bsd_vsprintf",   FALSE,  2,      TRUE,
  80
  81 /* Make -fnext-runtime the default.  */
  82
  83 #define NEXT_OBJC_RUNTIME
  84
  85 /* Enable recent gcc to compile under the old gcc in Next release 1.0.  */
  86
  87 #define __inline inline
  88
  89 /* wchar_t is unsigned short */
  90
  91 #undef  WCHAR_TYPE
  92 #define WCHAR_TYPE "short unsigned int"
  93 #undef  WCHAR_TYPE_SIZE
  94 #define WCHAR_TYPE_SIZE (BITS_PER_WORD / 2)
  95
  96 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
  97    we want to retain compatibility with older gcc versions.  */
  98
  99 #undef  DEFAULT_PCC_STRUCT_RETURN
 100 #define DEFAULT_PCC_STRUCT_RETURN 0
 101
 102 /* These compiler options take n arguments.  */
 103
 104 #undef  WORD_SWITCH_TAKES_ARG
 105 #define WORD_SWITCH_TAKES_ARG(STR)              \
 106   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 :    \
 107    !strcmp (STR, "segalign") ? 1 :              \
 108    !strcmp (STR, "seg1addr") ? 1 :              \
 109    !strcmp (STR, "segaddr") ? 2 :               \
 110    !strcmp (STR, "sectobjectsymbols") ? 2 :     \
 111    !strcmp (STR, "segprot") ? 3 :               \
 112    !strcmp (STR, "sectcreate") ? 3 :            \
 113    !strcmp (STR, "sectalign") ? 3 :             \
 114    !strcmp (STR, "segcreate") ? 3 :             \
 115    !strcmp (STR, "sectorder") ? 3 :             \
 116    !strcmp (STR, "siff-mask") ? 1 :             \
 117    !strcmp (STR, "siff-filter") ? 1 :           \
 118    !strcmp (STR, "siff-warning") ? 1 :          \
 119    !strcmp (STR, "arch") ? 1 :                  \
 120    !strcmp (STR, "pagezero_size") ? 1 :         \
 121    0)
 122
 123 #undef  WORD_SWITCH
 124 #define WORD_SWITCH(STR)                        \
 125   (WORD_SWITCH_TAKES_ARG (STR)                  \
 126    || !strcmp (STR, "bsd")                      \
 127    || !strcmp (STR, "object")                   \
 128    || !strcmp (STR, "ObjC")                     \
 129    || !strcmp (STR, "all_load"))
 130
 131 /* Machine dependent ccp options.  */
 132
 133 #undef  CPP_SPEC
 134 #define CPP_SPEC "%{!traditional: -D__STDC__}            \
 135                   %{posixstrict:-D_POSIX_SOURCE}         \
 136                   %{!posixstrict:%{bsd:-D__STRICT_BSD__} \
 137                   %{posix:-D_POSIX_SOURCE}               \
 138                   %{!ansi:-D_NEXT_SOURCE}}               \
 139                   %{MD:-MD %M} %{MMD:-MMD %M}"
 140
 141 /* Machine dependent ld options.  */
 142
 143 #undef  LINK_SPEC
 144 #define LINK_SPEC "%{Z} %{M} \
 145 %{execute*} %{preload*} %{fvmlib*} \
 146 %{segalign*} %{seg1addr*} %{segaddr*} %{segprot*} \
 147 %{pagezero_size*} \
 148 %{seglinkedit*} %{noseglinkedit*} \
 149 %{sectcreate*} %{sectalign*} %{sectobjectsymbols}\
 150 %{segcreate*} %{Mach*} %{whyload} %{w} \
 151 %{sectorder*} %{whatsloaded} %{ObjC} %{all_load} %{object}"
 152
 153 /* Machine dependent libraries.  */
 154
 155 #undef  LIB_SPEC
 156 #define LIB_SPEC "%{!posix*:-lsys_s} %{posix*:-lposix}"
 157
 158 /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
 159
 160 #undef  STARTFILE_SPEC
 161 #define STARTFILE_SPEC  \
 162     "%{!posix*:%{pg:-lgcrt0.o}%{!pg: \
 163      %{p:%e-p profiling is no longer supported.  Use -pg instead.} \
 164      %{!p:-lcrt0.o}}}\
 165      %{posix*:%{pg:-lgposixcrt0.o}%{!pg: \
 166      %{p:%e-p profiling is no longer supported.  Use -pg instead.} \
 167      %{!p:-lposixcrt0.o}}} \
 168      -lcrtbegin.o"
 169
 170 #undef  ENDFILE_SPEC
 171 #define ENDFILE_SPEC \
 172     "-lcrtend.o"
 173
 174 /* Allow #sscs (but don't do anything). */
 175
 176 #define SCCS_DIRECTIVE
 177
 178 /* We use Dbx symbol format.  */
 179
 180 #undef  SDB_DEBUGGING_INFO
 181 #undef  XCOFF_DEBUGGING_INFO
 182 #define DBX_DEBUGGING_INFO
 183
 184 /* This saves a fair amount of space. */
 185
 186 #undef  DBX_CONTIN_LENGTH
 187 #define DBX_CONTIN_LENGTH 0
 188
 189 /* These screw up NeXT's gdb at the moment, so don't use them. */
 190
 191 #undef  DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
 192 #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(FILE, FILENAME)
 193
 194 /* These come from bsd386.h, but are specific to sequent, so make sure
 195    they don't bite us.  */
 196
 197 #undef  DBX_NO_XREFS
 198 #undef  DBX_CONTIN_LENGTH
 199
 200 /* gdb needs a null N_SO at the end of each file for scattered loading. */
 201
 202 #undef  DBX_OUTPUT_MAIN_SOURCE_FILE_END
 203 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                 \
 204   fprintf (FILE,                                                        \
 205            "\t.text\n\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n",         \
 206            "" , N_SO)
 207
 208 /* Define our object format type for crtstuff.c */
 209 #define OBJECT_FORMAT_MACHO
 210
 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 #define EH_FRAME_SECTION_ASM_OP "\t.section __TEXT,__eh_frame,regular"
 236
 237 /* Don't output a .file directive.  That is only used by the assembler for
 238    error reporting.  */
 239 #undef  ASM_FILE_START
 240 #define ASM_FILE_START(FILE)
 241
 242 #undef  ASM_FILE_END
 243 #define ASM_FILE_END(FILE)                                      \
 244   do {                                                          \
 245     if (strcmp (language_string, "GNU C++") == 0)               \
 246       {                                                         \
 247         constructor_section ();                                 \
 248         destructor_section ();                                  \
 249         ASM_OUTPUT_ALIGN (FILE, 1);                             \
 250       }                                                         \
 251   } while (0)
 252
 253 /* How to parse #pragma's */
 254
 255 #undef  HANDLE_PRAGMA
 256 #define HANDLE_PRAGMA(GETC, UNGETC, NAME) handle_pragma (GETC, UNGETC, NAME)
 257 extern int handle_pragma PARAMS ((int(*)(void), void (*)(int), const char *));
 258
 259 /* Give methods pretty symbol names on NeXT. */
 260
 261 #undef  OBJC_GEN_METHOD_LABEL
 262 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
 263   do { if (CAT_NAME)                                                    \
 264          sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \
 265                   (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \
 266        else                                                             \
 267          sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \
 268                   (CLASS_NAME), (SEL_NAME));                            \
 269      } while (0)
 270
 271 /* The prefix to add to user-visible assembler symbols. */
 272
 273 #undef USER_LABEL_PREFIX
 274 #define USER_LABEL_PREFIX "_"
 275
 276 /* Wrap new method names in quotes so the assembler doesn't gag.
 277    Make Objective-C internal symbols local.  */
 278
 279 #undef  ASM_OUTPUT_LABELREF
 280 #define ASM_OUTPUT_LABELREF(FILE,NAME)  \
 281   do { if (NAME[0] == '+' || NAME[0] == '-') fprintf (FILE, "\"%s\"", NAME); \
 282        else if (!strncmp (NAME, "_OBJC_", 6)) fprintf (FILE, "L%s", NAME);   \
 283        else if (!strncmp (NAME, ".objc_class_name_", 17))               \
 284          fprintf (FILE, "%s", NAME);                                    \
 285        else asm_fprintf (FILE, "%U%s", NAME); } while (0)
 286
 287 #undef  ALIGN_ASM_OP
 288 #define ALIGN_ASM_OP            "\t.align\t"
 289
 290 #undef  ASM_OUTPUT_ALIGN
 291 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 292   if ((LOG) != 0)                       \
 293     fprintf (FILE, "%s%d\n", ALIGN_ASM_OP, (LOG))
 294
 295 /* Ensure correct alignment of bss data.  */
 296
 297 #undef  ASM_OUTPUT_ALIGNED_LOCAL
 298 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
 299 ( fputs (".lcomm ", (FILE)),                            \
 300   assemble_name ((FILE), (NAME)),                       \
 301   fprintf ((FILE), ",%u,%u\n", (SIZE), floor_log2 ((ALIGN) / BITS_PER_UNIT)))
 302
 303 /* Output #ident as a .ident.  */
 304
 305 #undef  ASM_OUTPUT_IDENT
 306 #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
 307
 308 /* The maximum alignment which the object file format can support.
 309    For NeXT's Mach-O format, this is 2^15.  */
 310
 311 #undef  MAX_OFILE_ALIGNMENT
 312 #define MAX_OFILE_ALIGNMENT 0x8000
 313
 314 /* Create new Mach-O sections. */
 315
 316 #undef  SECTION_FUNCTION
 317 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, WAS_TEXT, OBJC)  \
 318 extern void FUNCTION PARAMS ((void));                                   \
 319 void                                                                    \
 320 FUNCTION ()                                                             \
 321 {                                                                       \
 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 extern void objc_section_init PARAMS ((void));  \
 352 SECTION_FUNCTION (const_section,                \
 353                   in_const,                     \
 354                   ".const", 1, 0)               \
 355 SECTION_FUNCTION (cstring_section,              \
 356                   in_cstring,                   \
 357                   ".cstring", 1, 0)             \
 358 SECTION_FUNCTION (literal4_section,             \
 359                   in_literal4,                  \
 360                   ".literal4", 1, 0)            \
 361 SECTION_FUNCTION (literal8_section,             \
 362                   in_literal8,                  \
 363                   ".literal8", 1, 0)            \
 364 SECTION_FUNCTION (constructor_section,          \
 365                   in_constructor,               \
 366                   ".constructor", 0, 0)         \
 367 SECTION_FUNCTION (destructor_section,           \
 368                   in_destructor,                \
 369                   ".destructor", 0, 0)          \
 370 SECTION_FUNCTION (objc_class_section,           \
 371                   in_objc_class,                \
 372                   ".objc_class", 0, 1)          \
 373 SECTION_FUNCTION (objc_meta_class_section,      \
 374                   in_objc_meta_class,           \
 375                   ".objc_meta_class", 0, 1)     \
 376 SECTION_FUNCTION (objc_category_section,        \
 377                   in_objc_category,             \
 378                 ".objc_category", 0, 1)         \
 379 SECTION_FUNCTION (objc_class_vars_section,      \
 380                   in_objc_class_vars,           \
 381                   ".objc_class_vars", 0, 1)     \
 382 SECTION_FUNCTION (objc_instance_vars_section,   \
 383                   in_objc_instance_vars,        \
 384                   ".objc_instance_vars", 0, 1)  \
 385 SECTION_FUNCTION (objc_cls_meth_section,        \
 386                   in_objc_cls_meth,             \
 387                   ".objc_cls_meth", 0, 1)       \
 388 SECTION_FUNCTION (objc_inst_meth_section,       \
 389                   in_objc_inst_meth,            \
 390                   ".objc_inst_meth", 0, 1)      \
 391 SECTION_FUNCTION (objc_cat_cls_meth_section,    \
 392                   in_objc_cat_cls_meth,         \
 393                   ".objc_cat_cls_meth", 0, 1)   \
 394 SECTION_FUNCTION (objc_cat_inst_meth_section,   \
 395                   in_objc_cat_inst_meth,        \
 396                   ".objc_cat_inst_meth", 0, 1)  \
 397 SECTION_FUNCTION (objc_selector_refs_section,   \
 398                   in_objc_selector_refs,        \
 399                   ".objc_message_refs", 0, 1)   \
 400 SECTION_FUNCTION (objc_symbols_section,         \
 401                   in_objc_symbols,              \
 402                   ".objc_symbols", 0, 1)        \
 403 SECTION_FUNCTION (objc_module_info_section,     \
 404                   in_objc_module_info,          \
 405                   ".objc_module_info", 0, 1)    \
 406 SECTION_FUNCTION (objc_protocol_section,        \
 407                   in_objc_protocol,             \
 408                   ".objc_protocol", 0, 1)       \
 409 SECTION_FUNCTION (objc_string_object_section,   \
 410                   in_objc_string_object,        \
 411                   ".objc_string_object", 0, 1)  \
 412 SECTION_FUNCTION (objc_class_names_section,     \
 413                 in_objc_class_names,            \
 414                 ".objc_class_names", 0, 1)      \
 415 SECTION_FUNCTION (objc_meth_var_names_section,  \
 416                 in_objc_meth_var_names,         \
 417                 ".objc_meth_var_names", 0, 1)   \
 418 SECTION_FUNCTION (objc_meth_var_types_section,  \
 419                 in_objc_meth_var_types,         \
 420                 ".objc_meth_var_types", 0, 1)   \
 421 SECTION_FUNCTION (objc_cls_refs_section,        \
 422                 in_objc_cls_refs,               \
 423                 ".objc_cls_refs", 0, 1)         \
 424                                                 \
 425 void                                            \
 426 objc_section_init ()                            \
 427 {                                               \
 428   static int been_here = 0;                     \
 429                                                 \
 430   if (been_here == 0)                           \
 431     {                                           \
 432       been_here = 1;                            \
 433       objc_class_section ();                    \
 434       objc_meta_class_section ();               \
 435       objc_cat_cls_meth_section ();             \
 436       objc_cat_inst_meth_section ();            \
 437       objc_cls_meth_section ();                 \
 438       objc_inst_meth_section ();                \
 439       objc_selector_refs_section ();            \
 440       objc_symbols_section ();                  \
 441       objc_category_section ();                 \
 442       objc_protocol_section ();                 \
 443       objc_class_vars_section ();               \
 444       objc_instance_vars_section ();            \
 445       objc_module_info_section ();              \
 446       objc_string_object_section ();            \
 447       objc_class_names_section ();              \
 448       objc_meth_var_names_section ();           \
 449       objc_meth_var_types_section ();           \
 450       objc_cls_refs_section ();                 \
 451     }                                           \
 452 }
 453
 454 #undef  READONLY_DATA_SECTION
 455 #define READONLY_DATA_SECTION const_section
 456
 457 #undef  SELECT_SECTION
 458 #define SELECT_SECTION(exp,reloc)                               \
 459   do                                                            \
 460     {                                                           \
 461       if (TREE_CODE (exp) == STRING_CST)                        \
 462         {                                                       \
 463           if (flag_writable_strings)                            \
 464             data_section ();                                    \
 465           else if (TREE_STRING_LENGTH (exp) !=                  \
 466                    strlen (TREE_STRING_POINTER (exp)) + 1)      \
 467             readonly_data_section ();                           \
 468           else                                                  \
 469             cstring_section ();                                 \
 470         }                                                       \
 471       else if (TREE_CODE (exp) == INTEGER_CST                   \
 472                || TREE_CODE (exp) == REAL_CST)                  \
 473         {                                                       \
 474           tree size = TYPE_SIZE (TREE_TYPE (exp));              \
 475                                                                 \
 476           if (TREE_CODE (size) == INTEGER_CST &&                \
 477               TREE_INT_CST_LOW (size) == 4 &&                   \
 478               TREE_INT_CST_HIGH (size) == 0)                    \
 479             literal4_section ();                                \
 480           else if (TREE_CODE (size) == INTEGER_CST &&           \
 481               TREE_INT_CST_LOW (size) == 8 &&                   \
 482               TREE_INT_CST_HIGH (size) == 0)                    \
 483             literal8_section ();                                \
 484           else                                                  \
 485             readonly_data_section ();                           \
 486         }                                                       \
 487       else if (TREE_CODE (exp) == CONSTRUCTOR                           \
 488                && TREE_TYPE (exp)                                       \
 489                && TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE            \
 490                && TYPE_NAME (TREE_TYPE (exp))                           \
 491                && TREE_CODE (TYPE_NAME (TREE_TYPE (exp))) == IDENTIFIER_NODE \
 492                && IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))))     \
 493         {                                                               \
 494           if (!strcmp (IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))), \
 495                         "NXConstantString"))                            \
 496           objc_string_object_section ();                                \
 497         else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))           \
 498                 && !TREE_SIDE_EFFECTS (exp))                            \
 499           readonly_data_section ();                                     \
 500         else                                                            \
 501           data_section ();                                              \
 502       }                                                                 \
 503       else if (TREE_CODE (exp) == VAR_DECL &&                           \
 504                DECL_NAME (exp) &&                                       \
 505                TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE &&        \
 506                IDENTIFIER_POINTER (DECL_NAME (exp)) &&                  \
 507                !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) \
 508         {                                                               \
 509           const char *name = IDENTIFIER_POINTER (DECL_NAME (exp));      \
 510                                                                         \
 511           if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20))              \
 512             objc_cls_meth_section ();                                   \
 513           else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23))      \
 514             objc_inst_meth_section ();                                  \
 515           else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) \
 516             objc_cat_cls_meth_section ();                               \
 517           else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) \
 518             objc_cat_inst_meth_section ();                              \
 519           else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22))       \
 520             objc_class_vars_section ();                                 \
 521           else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25))    \
 522             objc_instance_vars_section ();                              \
 523           else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22))       \
 524             objc_cat_cls_meth_section ();                               \
 525           else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17))            \
 526             objc_class_names_section ();                                \
 527           else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20))         \
 528             objc_meth_var_names_section ();                             \
 529           else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20))         \
 530             objc_meth_var_types_section ();                             \
 531           else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22))       \
 532             objc_cls_refs_section ();                                   \
 533           else if (!strncmp (name, "_OBJC_CLASS_", 12))                 \
 534             objc_class_section ();                                      \
 535           else if (!strncmp (name, "_OBJC_METACLASS_", 16))             \
 536             objc_meta_class_section ();                                 \
 537           else if (!strncmp (name, "_OBJC_CATEGORY_", 15))              \
 538             objc_category_section ();                                   \
 539           else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25))    \
 540             objc_selector_refs_section ();                              \
 541           else if (!strncmp (name, "_OBJC_SYMBOLS", 13))                \
 542             objc_symbols_section ();                                    \
 543           else if (!strncmp (name, "_OBJC_MODULES", 13))                \
 544             objc_module_info_section ();                                \
 545           else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32)) \
 546             objc_cat_inst_meth_section ();                              \
 547           else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29)) \
 548             objc_cat_cls_meth_section ();                               \
 549           else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20))         \
 550             objc_cat_cls_meth_section ();                               \
 551           else if (!strncmp (name, "_OBJC_PROTOCOL_", 15))              \
 552             objc_protocol_section ();                                   \
 553           else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))         \
 554                 && !TREE_SIDE_EFFECTS (exp))                            \
 555             readonly_data_section ();                                   \
 556           else                                                          \
 557             data_section ();                                            \
 558         }                                                               \
 559       else if (TREE_CODE (exp) == VAR_DECL)                             \
 560         {                                                               \
 561           if ((flag_pic && reloc)                                       \
 562               || !TREE_READONLY (exp) || TREE_SIDE_EFFECTS (exp)        \
 563               || !DECL_INITIAL (exp)                                    \
 564               || (DECL_INITIAL (exp) != error_mark_node                 \
 565                   && !TREE_CONSTANT (DECL_INITIAL (exp))))              \
 566             data_section ();                                            \
 567           else                                                          \
 568             readonly_data_section ();                                   \
 569         }                                                               \
 570       else                                                              \
 571         readonly_data_section ();                                       \
 572     }                                                                   \
 573   while (0)
 574
 575 #undef  SELECT_RTX_SECTION
 576 #define SELECT_RTX_SECTION(mode, rtx)                                   \
 577   do                                                                    \
 578     {                                                                   \
 579       if (GET_MODE_SIZE(mode) == 8)                                     \
 580         literal8_section();                                             \
 581       else if (GET_MODE_SIZE(mode) == 4)                                \
 582         literal4_section();                                             \
 583       else                                                              \
 584         const_section ();                                               \
 585     }                                                                   \
 586   while (0)
 587
 588 #ifdef ASM_COMMENT_START
 589 # undef ASM_COMMENT_START
 590 #endif
 591
 592 #define ASM_COMMENT_START ";#"