gcc/config/i386/cygwin.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    hosting on Windows NT 3.x, using a Unix style C library and tools,
   3    as distinct from winnt.h, which is used to build GCC for use with a
   4    windows style library and tool set and uses the Microsoft tools.
   5    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
   6    Free Software Foundation, Inc.
   7
   8 This file is part of GNU CC.
   9
  10 GNU CC is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2, or (at your option)
  13 any later version.
  14
  15 GNU CC is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with GNU CC; see the file COPYING.  If not, write to
  22 the Free Software Foundation, 59 Temple Place - Suite 330,
  23 Boston, MA 02111-1307, USA. */
  24
  25 #define YES_UNDERSCORES
  26
  27 #define DBX_DEBUGGING_INFO
  28 #define SDB_DEBUGGING_INFO
  29 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  30
  31 #include "i386/gas.h"
  32 #include "dbxcoff.h"
  33
  34 /* Augment TARGET_SWITCHES with the cygwin/no-cygwin options. */
  35 #define MASK_WIN32 0x40000000 /* Use -lming32 interface */
  36 #define MASK_CYGWIN  0x20000000 /* Use -lcygwin interface */
  37 #define MASK_WINDOWS 0x10000000 /* Use windows interface */
  38 #define MASK_DLL     0x08000000 /* Use dll interface    */
  39 #define MASK_NOP_FUN_DLLIMPORT 0x20000 /* Ignore dllimport for functions */
  40
  41 #define TARGET_WIN32             (target_flags & MASK_WIN32)
  42 #define TARGET_CYGWIN            (target_flags & MASK_CYGWIN)
  43 #define TARGET_WINDOWS           (target_flags & MASK_WINDOWS)
  44 #define TARGET_DLL               (target_flags & MASK_DLL)
  45 #define TARGET_NOP_FUN_DLLIMPORT (target_flags & MASK_NOP_FUN_DLLIMPORT)
  46
  47 #undef  SUBTARGET_SWITCHES
  48 #define SUBTARGET_SWITCHES \
  49 { "cygwin",               MASK_CYGWIN,                                  \
  50   N_("Use the Cygwin interface") },                                     \
  51 { "no-cygwin",            MASK_WIN32,                                   \
  52   N_("Use the Mingw32 interface") },                                    \
  53 { "windows",              MASK_WINDOWS, N_("Create GUI application") }, \
  54 { "no-win32",             -MASK_WIN32, N_("Don't set Windows defines") },\
  55 { "console",              -MASK_WINDOWS,                                \
  56   N_("Create console application") },                                   \
  57 { "dll",                  MASK_DLL, N_("Generate code for a DLL") },    \
  58 { "nop-fun-dllimport",    MASK_NOP_FUN_DLLIMPORT,                       \
  59   N_("Ignore dllimport for functions") },                               \
  60 { "no-nop-fun-dllimport", -MASK_NOP_FUN_DLLIMPORT, "" }, \
  61 { "threads",              0, N_("Use Mingw-specific thread support") },
  62
  63
  64 /* Support the __declspec keyword by turning them into attributes.
  65    We currently only support: dllimport and dllexport.
  66    Note that the current way we do this may result in a collision with
  67    predefined attributes later on.  This can be solved by using one attribute,
  68    say __declspec__, and passing args to it.  The problem with that approach
  69    is that args are not accumulated: each new appearance would clobber any
  70    existing args.  */
  71
  72 #undef CPP_PREDEFINES
  73 #define CPP_PREDEFINES "-D_X86_=1 -Asystem=winnt"
  74
  75 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we
  76    want to allow things to be added to it when installing new versions of
  77    GCC without making a new CYGWIN.DLL, so we leave it.  Profiling is handled
  78    by calling the init function from the prologue. */
  79
  80 #undef LIBGCC_SPEC
  81 #define LIBGCC_SPEC "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc %{mno-cygwin:-lmoldname -lcrtdll}"
  82
  83 #undef STARTFILE_SPEC
  84 #define STARTFILE_SPEC "%{shared|mdll: %{mno-cygwin:dllcrt1%O%s}} \
  85   %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:crt1%O%s} \
  86   %{pg:gcrt0%O%s}}}"
  87
  88 #undef CPP_SPEC
  89 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
  90   -D__stdcall=__attribute__((__stdcall__)) \
  91   -D__cdecl=__attribute__((__cdecl__)) \
  92   %{!ansi:-D_stdcall=__attribute__((__stdcall__)) \
  93     -D_cdecl=__attribute__((__cdecl__))} \
  94   -D__declspec(x)=__attribute__((x)) \
  95   -D__i386__ -D__i386 \
  96   %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix -D__unix__} \
  97   %{!mno-win32:-D_WIN32 -DWINNT -isystem /usr/include/w32api} \
  98   %{mno-win32: %{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
  99   %{mno-cygwin:-DWIN32 -D__WIN32__ -D_WIN32 -D__MINGW32__=0.2 \
 100     %{mthreads:-D_MT} \
 101     -isystem /usr/include/mingw32 \
 102     -isystem /usr/include/mingw \
 103     -iwithprefixbefore ../../../../mingw/include/g++-3 \
 104     -iwithprefixbefore ../../../../mingw/include \
 105     -iwithprefixbefore ../../../../mingw32/include/g++-3 \
 106     -iwithprefixbefore ../../../../mingw32/include }"
 107
 108
 109 /* This macro defines names of additional specifications to put in the specs
 110    that can be used in various specifications like CC1_SPEC.  Its definition
 111    is an initializer with a subgrouping for each command option.
 112
 113    Each subgrouping contains a string constant, that defines the
 114    specification name, and a string constant that used by the GNU CC driver
 115    program.
 116
 117    Do not define this macro if it does not need to do anything.  */
 118
 119 #undef  SUBTARGET_EXTRA_SPECS
 120 #define SUBTARGET_EXTRA_SPECS                                           \
 121   { "mingw_include_path", DEFAULT_TARGET_MACHINE }
 122
 123 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
 124    the Unix stuff is in cygwin.dll.  The import library is called
 125    'libcygwin.a'.  For Windows applications, include more libraries, but
 126    always include kernel32.  We'd like to specific subsystem windows to
 127    ld, but that doesn't work just yet.  */
 128
 129 #undef LIB_SPEC
 130 #define LIB_SPEC "%{pg:-lgmon} \
 131   %{!mno-cygwin:-lcygwin} \
 132   %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
 133   %{mwindows:-lgdi32 -lcomdlg32} \
 134   -luser32 -lkernel32 -ladvapi32 -lshell32"
 135
 136 #define LINK_SPEC "%{mwindows:--subsystem windows} \
 137   %{mconsole:--subsystem console} \
 138   %{shared: %{mdll: %eshared and mdll are not compatible}} \
 139   %{shared: --shared} %{mdll:--dll} \
 140   %{static:-Bstatic} %{!static:-Bdynamic} \
 141   %{shared|mdll: -e \
 142     %{mno-cygwin:_DllMainCRTStartup@12} \
 143     %{!mno-cygwin:__cygwin_dll_entry@12}}"
 144
 145 #undef MATH_LIBRARY
 146 #define MATH_LIBRARY ""
 147
 148 #define SIZE_TYPE "unsigned int"
 149 #define PTRDIFF_TYPE "int"
 150 #define WCHAR_UNSIGNED 1
 151 #define WCHAR_TYPE_SIZE 16
 152 #define WCHAR_TYPE "short unsigned int"
 153
 154 \f
 155 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
 156 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
 157
 158 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 159    is a valid machine specific attribute for DECL.
 160    The attributes in ATTRIBUTES have previously been assigned to DECL.  */
 161
 162 union tree_node;
 163 #define TREE union tree_node *
 164
 165 #undef VALID_MACHINE_DECL_ATTRIBUTE
 166 #define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
 167   i386_pe_valid_decl_attribute_p (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
 168 extern int i386_pe_valid_decl_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 169
 170 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 171    is a valid machine specific attribute for TYPE.
 172    The attributes in ATTRIBUTES have previously been assigned to TYPE.  */
 173
 174 #undef VALID_MACHINE_TYPE_ATTRIBUTE
 175 #define VALID_MACHINE_TYPE_ATTRIBUTE(TYPE, ATTRIBUTES, IDENTIFIER, ARGS) \
 176   i386_pe_valid_type_attribute_p (TYPE, ATTRIBUTES, IDENTIFIER, ARGS)
 177 extern int i386_pe_valid_type_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 178
 179 extern union tree_node *i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 180 #define MERGE_MACHINE_DECL_ATTRIBUTES(OLD, NEW) \
 181   i386_pe_merge_decl_attributes ((OLD), (NEW))
 182 extern TREE i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 183
 184 /* Used to implement dllexport overriding dllimport semantics.  It's also used
 185    to handle vtables - the first pass won't do anything because
 186    DECL_CONTEXT (DECL) will be 0 so i386_pe_dll{ex,im}port_p will return 0.
 187    It's also used to handle dllimport override semantics.  */
 188 #if 0
 189 #define REDO_SECTION_INFO_P(DECL) \
 190   ((DECL_MACHINE_ATTRIBUTES (DECL) != NULL_TREE) \
 191    || (TREE_CODE (DECL) == VAR_DECL && DECL_VIRTUAL_P (DECL)))
 192 #else
 193 #define REDO_SECTION_INFO_P(DECL) 1
 194 #endif
 195
 196 \f
 197 #undef EXTRA_SECTIONS
 198 #define EXTRA_SECTIONS in_ctor, in_dtor, in_drectve
 199
 200 #undef EXTRA_SECTION_FUNCTIONS
 201 #define EXTRA_SECTION_FUNCTIONS                                 \
 202   CTOR_SECTION_FUNCTION                                         \
 203   DTOR_SECTION_FUNCTION                                         \
 204   DRECTVE_SECTION_FUNCTION                                      \
 205   SWITCH_TO_SECTION_FUNCTION
 206
 207 #define CTOR_SECTION_FUNCTION                                   \
 208 void                                                            \
 209 ctor_section ()                                                 \
 210 {                                                               \
 211   if (in_section != in_ctor)                                    \
 212     {                                                           \
 213       fprintf (asm_out_file, "\t.section .ctor\n");             \
 214       in_section = in_ctor;                                     \
 215     }                                                           \
 216 }
 217
 218 #define DTOR_SECTION_FUNCTION                                   \
 219 void                                                            \
 220 dtor_section ()                                                 \
 221 {                                                               \
 222   if (in_section != in_dtor)                                    \
 223     {                                                           \
 224       fprintf (asm_out_file, "\t.section .dtor\n");             \
 225       in_section = in_dtor;                                     \
 226     }                                                           \
 227 }
 228
 229 #define DRECTVE_SECTION_FUNCTION \
 230 void                                                                    \
 231 drectve_section ()                                                      \
 232 {                                                                       \
 233   if (in_section != in_drectve)                                         \
 234     {                                                                   \
 235       fprintf (asm_out_file, "%s\n", "\t.section .drectve\n");          \
 236       in_section = in_drectve;                                          \
 237     }                                                                   \
 238 }
 239
 240 /* Switch to SECTION (an `enum in_section').
 241
 242    ??? This facility should be provided by GCC proper.
 243    The problem is that we want to temporarily switch sections in
 244    ASM_DECLARE_OBJECT_NAME and then switch back to the original section
 245    afterwards.  */
 246 #define SWITCH_TO_SECTION_FUNCTION                              \
 247 void                                                            \
 248 switch_to_section (section, decl)                               \
 249      enum in_section section;                                   \
 250      tree decl;                                                 \
 251 {                                                               \
 252   switch (section)                                              \
 253     {                                                           \
 254       case in_text: text_section (); break;                     \
 255       case in_data: data_section (); break;                     \
 256       case in_named: named_section (decl, NULL, 0); break;      \
 257       case in_ctor: ctor_section (); break;                     \
 258       case in_dtor: dtor_section (); break;                     \
 259       case in_drectve: drectve_section (); break;               \
 260       default: abort (); break;                                 \
 261     }                                                           \
 262 }
 263
 264 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
 265   do {                                          \
 266     ctor_section ();                            \
 267     fprintf (FILE, "%s\t", ASM_LONG);           \
 268     assemble_name (FILE, NAME);                 \
 269     fprintf (FILE, "\n");                       \
 270   } while (0)
 271
 272 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
 273   do {                                          \
 274     dtor_section ();                            \
 275     fprintf (FILE, "%s\t", ASM_LONG);           \
 276     assemble_name (FILE, NAME);                 \
 277     fprintf (FILE, "\n");                       \
 278   } while (0)
 279
 280 /* Don't allow flag_pic to propagate since gas may produce invalid code
 281    otherwise. */
 282
 283 #undef  SUBTARGET_OVERRIDE_OPTIONS
 284 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 285 do {                                                                    \
 286   if (flag_pic)                                                         \
 287     {                                                                   \
 288       warning ("-f%s ignored for target (all code is position independent)",\
 289                (flag_pic > 1) ? "PIC" : "pic");                         \
 290       flag_pic = 0;                                                     \
 291     }                                                                   \
 292 } while (0)                                                             \
 293
 294 /* Define this macro if references to a symbol must be treated
 295    differently depending on something about the variable or
 296    function named by the symbol (such as what section it is in).
 297
 298    On i386 running Windows NT, modify the assembler name with a suffix
 299    consisting of an atsign (@) followed by string of digits that represents
 300    the number of bytes of arguments passed to the function, if it has the
 301    attribute STDCALL.
 302
 303    In addition, we must mark dll symbols specially. Definitions of
 304    dllexport'd objects install some info in the .drectve section.
 305    References to dllimport'd objects are fetched indirectly via
 306    _imp__.  If both are declared, dllexport overrides.  This is also
 307    needed to implement one-only vtables: they go into their own
 308    section and we need to set DECL_SECTION_NAME so we do that here.
 309    Note that we can be called twice on the same decl.  */
 310
 311 extern void i386_pe_encode_section_info PARAMS ((TREE));
 312
 313 #ifdef ENCODE_SECTION_INFO
 314 #undef ENCODE_SECTION_INFO
 315 #endif
 316 #define ENCODE_SECTION_INFO(DECL) i386_pe_encode_section_info (DECL)
 317
 318 /* Utility used only in this file.  */
 319 #define I386_PE_STRIP_ENCODING(SYM_NAME) \
 320   ((SYM_NAME) + ((SYM_NAME)[0] == '@' ? 3 : 0))
 321
 322 /* This macro gets just the user-specified name
 323    out of the string in a SYMBOL_REF.  Discard
 324    trailing @[NUM] encoded by ENCODE_SECTION_INFO.  */
 325 #undef  STRIP_NAME_ENCODING
 326 #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME)                            \
 327 do {                                                                    \
 328   const char *_p;                                                       \
 329   const char *_name = I386_PE_STRIP_ENCODING (SYMBOL_NAME);             \
 330   for (_p = _name; *_p && *_p != '@'; ++_p)                             \
 331     ;                                                                   \
 332   if (*_p == '@')                                                       \
 333     {                                                                   \
 334       int _len = _p - _name;                                            \
 335       char *_new_name = (char *) alloca (_len + 1);                     \
 336       strncpy (_new_name, _name, _len);                                 \
 337       _new_name[_len] = '\0';                                           \
 338       (VAR) = _new_name;                                                \
 339     }                                                                   \
 340   else                                                                  \
 341     (VAR) = _name;                                                      \
 342 } while (0)
 343
 344 \f
 345 /* Output a reference to a label.  */
 346 #undef ASM_OUTPUT_LABELREF
 347 #define ASM_OUTPUT_LABELREF(STREAM, NAME)               \
 348   fprintf (STREAM, "%s%s", USER_LABEL_PREFIX,           \
 349            I386_PE_STRIP_ENCODING (NAME))               \
 350
 351 /* Output a common block.  */
 352 #undef ASM_OUTPUT_COMMON
 353 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)  \
 354 do {                                                    \
 355   if (i386_pe_dllexport_name_p (NAME))                  \
 356     i386_pe_record_exported_symbol (NAME, 1);           \
 357   if (! i386_pe_dllimport_name_p (NAME))                \
 358     {                                                   \
 359       fprintf ((STREAM), "\t.comm\t");                  \
 360       assemble_name ((STREAM), (NAME));                 \
 361       fprintf ((STREAM), ", %d\t%s %d\n",               \
 362                (ROUNDED), ASM_COMMENT_START, (SIZE));   \
 363     }                                                   \
 364 } while (0)
 365
 366 /* Output the label for an initialized variable.  */
 367 #undef ASM_DECLARE_OBJECT_NAME
 368 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)     \
 369 do {                                                    \
 370   if (i386_pe_dllexport_name_p (NAME))                  \
 371     i386_pe_record_exported_symbol (NAME, 1);           \
 372   ASM_OUTPUT_LABEL ((STREAM), (NAME));                  \
 373 } while (0)
 374
 375 \f
 376 /* Emit code to check the stack when allocating more that 4000
 377    bytes in one go. */
 378
 379 #define CHECK_STACK_LIMIT 4000
 380
 381 /* By default, target has a 80387, uses IEEE compatible arithmetic,
 382    and returns float values in the 387 and needs stack probes */
 383 #undef TARGET_DEFAULT
 384
 385 #define TARGET_DEFAULT \
 386    (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE)
 387
 388 /* This is how to output an assembler line
 389    that says to advance the location counter
 390    to a multiple of 2**LOG bytes.  */
 391
 392 #undef ASM_OUTPUT_ALIGN
 393 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 394     if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
 395
 396 /* Define this macro if in some cases global symbols from one translation
 397    unit may not be bound to undefined symbols in another translation unit
 398    without user intervention.  For instance, under Microsoft Windows
 399    symbols must be explicitly imported from shared libraries (DLLs).  */
 400 #define MULTIPLE_SYMBOL_SPACES
 401
 402 #define UNIQUE_SECTION_P(DECL) DECL_ONE_ONLY (DECL)
 403 extern void i386_pe_unique_section PARAMS ((TREE, int));
 404 #define UNIQUE_SECTION(DECL,RELOC) i386_pe_unique_section (DECL, RELOC)
 405
 406 #define SUPPORTS_ONE_ONLY 1
 407
 408 /* A C statement to output something to the assembler file to switch to section
 409    NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
 410    NULL_TREE.  Some target formats do not support arbitrary sections.  Do not
 411    define this macro in such cases.  */
 412 #undef ASM_OUTPUT_SECTION_NAME
 413 #define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC)              \
 414 do {                                                                    \
 415   static struct section_info                                            \
 416     {                                                                   \
 417       struct section_info *next;                                        \
 418       char *name;                                                       \
 419       enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type;                \
 420     } *sections;                                                        \
 421   struct section_info *s;                                               \
 422   const char *mode;                                                     \
 423   enum sect_enum type;                                                  \
 424                                                                         \
 425   for (s = sections; s; s = s->next)                                    \
 426     if (!strcmp (NAME, s->name))                                        \
 427       break;                                                            \
 428                                                                         \
 429   if (DECL && TREE_CODE (DECL) == FUNCTION_DECL)                        \
 430     type = SECT_EXEC, mode = "x";                                       \
 431   else if (DECL && DECL_READONLY_SECTION (DECL, RELOC))                 \
 432     type = SECT_RO, mode = "";                                          \
 433   else                                                                  \
 434     {                                                                   \
 435       type = SECT_RW;                                                   \
 436       if (TREE_CODE (DECL) == VAR_DECL                                  \
 437           && lookup_attribute ("shared", DECL_MACHINE_ATTRIBUTES (DECL))) \
 438         mode = "ws";                                                    \
 439       else                                                              \
 440         mode = "w";                                                     \
 441     }                                                                   \
 442                                                                         \
 443   if (s == 0)                                                           \
 444     {                                                                   \
 445       s = (struct section_info *) xmalloc (sizeof (struct section_info)); \
 446       s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME));         \
 447       strcpy (s->name, NAME);                                           \
 448       s->type = type;                                                   \
 449       s->next = sections;                                               \
 450       sections = s;                                                     \
 451       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 452       /* Functions may have been compiled at various levels of          \
 453          optimization so we can't use `same_size' here.  Instead,       \
 454          have the linker pick one.  */                                  \
 455       if ((DECL) && DECL_ONE_ONLY (DECL))                               \
 456         fprintf (STREAM, "\t.linkonce %s\n",                            \
 457                  TREE_CODE (DECL) == FUNCTION_DECL                      \
 458                  ? "discard" : "same_size");                            \
 459     }                                                                   \
 460   else                                                                  \
 461     {                                                                   \
 462       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 463     }                                                                   \
 464 } while (0)
 465
 466 /* Write the extra assembler code needed to declare a function
 467    properly.  If we are generating SDB debugging information, this
 468    will happen automatically, so we only need to handle other cases.  */
 469 #undef ASM_DECLARE_FUNCTION_NAME
 470 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 471   do                                                                    \
 472     {                                                                   \
 473       if (i386_pe_dllexport_name_p (NAME))                              \
 474         i386_pe_record_exported_symbol (NAME, 0);                       \
 475       if (write_symbols != SDB_DEBUG)                                   \
 476         i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
 477       ASM_OUTPUT_LABEL (FILE, NAME);                                    \
 478     }                                                                   \
 479   while (0)
 480
 481 /* Add an external function to the list of functions to be declared at
 482    the end of the file.  */
 483 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                           \
 484   do                                                                    \
 485     {                                                                   \
 486       if (TREE_CODE (DECL) == FUNCTION_DECL)                            \
 487         i386_pe_record_external_function (NAME);                        \
 488     }                                                                   \
 489   while (0)
 490
 491 /* Declare the type properly for any external libcall.  */
 492 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
 493   i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
 494
 495 /* This says out to put a global symbol in the BSS section. */
 496 #undef ASM_OUTPUT_ALIGNED_BSS
 497 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 498   asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
 499
 500 /* Output function declarations at the end of the file.  */
 501 #undef ASM_FILE_END
 502 #define ASM_FILE_END(FILE) \
 503   i386_pe_asm_file_end (FILE)
 504
 505 #undef ASM_COMMENT_START
 506 #define ASM_COMMENT_START " #"
 507
 508 /* DWARF2 Unwinding doesn't work with exception handling yet. */
 509 #define DWARF2_UNWIND_INFO 0
 510
 511 /* Don't assume anything about the header files. */
 512 #define NO_IMPLICIT_EXTERN_C
 513
 514 #define SUBTARGET_PROLOGUE                                              \
 515   if (profile_flag                                                      \
 516       && MAIN_NAME_P (DECL_NAME (current_function_decl)))               \
 517      {                                                                  \
 518       emit_call_insn (gen_rtx (CALL, VOIDmode,                          \
 519         gen_rtx_MEM (FUNCTION_MODE,                                     \
 520                      gen_rtx_SYMBOL_REF (Pmode, "_monstartup")),        \
 521         const0_rtx));                                                   \
 522      }
 523
 524 /* External function declarations.  */
 525
 526 #ifndef PARAMS
 527 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
 528 #define PARAMS(ARGS) ARGS
 529 #else
 530 #define PARAMS(ARGS) ()
 531 #endif
 532 #endif
 533
 534 extern void i386_pe_record_external_function PARAMS ((char *));
 535 /* extern void i386_pe_declare_function_type PARAMS ((FILE *, char *, int)); */
 536 extern void i386_pe_record_exported_symbol PARAMS ((char *, int));
 537 /* extern void i386_pe_asm_file_end PARAMS ((FILE *)); */
 538
 539 /* For Win32 ABI compatibility */
 540 #undef DEFAULT_PCC_STRUCT_RETURN
 541 #define DEFAULT_PCC_STRUCT_RETURN 0
 542
 543 /* No data type wants to be aligned rounder than this.  */
 544 #undef  BIGGEST_ALIGNMENT
 545 #define BIGGEST_ALIGNMENT 128
 546
 547 /* A bitfield declared as `int' forces `int' alignment for the struct.  */
 548 #undef PCC_BITFIELDS_TYPE_MATTERS
 549 #define PCC_BITFIELDS_TYPE_MATTERS 1
 550 #define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
 551
 552
 553 /* Enable alias attribute support.  */
 554 #ifndef SET_ASM_OP
 555 #define SET_ASM_OP "\t.set\t"
 556 #endif
 557
 558 #ifndef INT_ASM_OP
 559 #define INT_ASM_OP "\t.long\t"
 560 #endif
 561
 562 #undef STANDARD_INCLUDE_DIR
 563 #define STANDARD_INCLUDE_DIR "/usr/include"
 564
 565 #undef MD_STARTFILE_PREFIX
 566 #define MD_STARTFILE_PREFIX     "/usr/lib/"
 567
 568 #undef STANDARD_STARTFILE_PREFIX
 569 #define STANDARD_STARTFILE_PREFIX     "/usr/lib/mingw/"
 570
 571 #undef TREE
 572
 573 #ifndef BUFSIZ
 574 # undef FILE
 575 #endif