gcc/config/i386/cygwin.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    hosting on Windows32, using a Unix style C library and tools.
   3    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
   4    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 #define YES_UNDERSCORES
  24
  25 #define DBX_DEBUGGING_INFO
  26 #define SDB_DEBUGGING_INFO
  27 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  28
  29 #include "i386/gas.h"
  30 #include "dbxcoff.h"
  31
  32 /* Augment TARGET_SWITCHES with the cygwin/no-cygwin options. */
  33 #define MASK_WIN32 0x40000000 /* Use -lming32 interface */
  34 #define MASK_CYGWIN  0x20000000 /* Use -lcygwin interface */
  35 #define MASK_WINDOWS 0x10000000 /* Use windows interface */
  36 #define MASK_DLL     0x08000000 /* Use dll interface    */
  37 #define MASK_NOP_FUN_DLLIMPORT 0x20000 /* Ignore dllimport for functions */
  38
  39 #define TARGET_WIN32             (target_flags & MASK_WIN32)
  40 #define TARGET_CYGWIN            (target_flags & MASK_CYGWIN)
  41 #define TARGET_WINDOWS           (target_flags & MASK_WINDOWS)
  42 #define TARGET_DLL               (target_flags & MASK_DLL)
  43 #define TARGET_NOP_FUN_DLLIMPORT (target_flags & MASK_NOP_FUN_DLLIMPORT)
  44
  45 #undef  SUBTARGET_SWITCHES
  46 #define SUBTARGET_SWITCHES \
  47 { "cygwin",               MASK_CYGWIN,                                  \
  48   N_("Use the Cygwin interface") },                                     \
  49 { "no-cygwin",            MASK_WIN32,                                   \
  50   N_("Use the Mingw32 interface") },                                    \
  51 { "windows",              MASK_WINDOWS, N_("Create GUI application") }, \
  52 { "no-win32",             -MASK_WIN32, N_("Don't set Windows defines") },\
  53 { "win32",                0, N_("Set Windows defines") },               \
  54 { "console",              -MASK_WINDOWS,                                \
  55   N_("Create console application") },                                   \
  56 { "dll",                  MASK_DLL, N_("Generate code for a DLL") },    \
  57 { "nop-fun-dllimport",    MASK_NOP_FUN_DLLIMPORT,                       \
  58   N_("Ignore dllimport for functions") },                               \
  59 { "no-nop-fun-dllimport", -MASK_NOP_FUN_DLLIMPORT, "" }, \
  60 { "threads",              0, N_("Use Mingw-specific thread support") },
  61
  62
  63 /* Support the __declspec keyword by turning them into attributes.
  64    We currently only support: dllimport and dllexport.
  65    Note that the current way we do this may result in a collision with
  66    predefined attributes later on.  This can be solved by using one attribute,
  67    say __declspec__, and passing args to it.  The problem with that approach
  68    is that args are not accumulated: each new appearance would clobber any
  69    existing args.  */
  70
  71 #undef CPP_PREDEFINES
  72 #define CPP_PREDEFINES "-D_X86_=1 -Asystem=winnt"
  73
  74 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we
  75    want to allow things to be added to it when installing new versions of
  76    GCC without making a new CYGWIN.DLL, so we leave it.  Profiling is handled
  77    by calling the init function from the prologue. */
  78
  79 #undef LIBGCC_SPEC
  80 #define LIBGCC_SPEC "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc %{mno-cygwin:-lmoldname -lmsvcrt}"
  81
  82 #ifdef CROSS_COMPILE
  83 #define CYGWIN_INCLUDES "-idirafter " CYGWIN_CROSS_DIR "/include"
  84 #define CYGWIN_W32API "-idirafter " CYGWIN_CROSS_DIR "/include/w32api"
  85 #define CYGWIN_LIB CYGWIN_CROSS_DIR "/lib"
  86 #define MINGW_LIBS "-L" CYGWIN_CROSS_DIR "/lib/mingw"
  87 #define MINGW_INCLUDES "-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++-3 "\
  88                        "-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++ "\
  89                        "-idirafter " CYGWIN_CROSS_DIR "/include/mingw"
  90 #else
  91 #define CYGWIN_INCLUDES "-isystem /usr/local/include -idirafter /usr/include"
  92 #define CYGWIN_W32API "-idirafter /usr/include/w32api"
  93 #define CYGWIN_LIB "/usr/lib"
  94 #define MINGW_LIBS "-L/usr/local/lib/mingw -L/usr/lib/mingw"
  95 #define MINGW_INCLUDES "-isystem /usr/include/mingw/g++-3 "\
  96                        "-isystem /usr/include/mingw/g++ "\
  97                        "-isystem /usr/local/include/mingw" \
  98                        "-idirafter /usr/include/mingw"
  99 #endif
 100
 101 #undef STARTFILE_SPEC
 102 #define STARTFILE_SPEC "%{shared|mdll: %{mno-cygwin:dllcrt2%O%s}} \
 103   %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:" MINGW_LIBS " mingw/crt2%O%s} \
 104   %{pg:gcrt0%O%s}}}"
 105
 106 #undef CPP_SPEC
 107 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
 108   -D__stdcall=__attribute__((__stdcall__)) \
 109   -D__cdecl=__attribute__((__cdecl__)) \
 110   %{!ansi:-D_stdcall=__attribute__((__stdcall__)) \
 111     -D_cdecl=__attribute__((__cdecl__))} \
 112   -D__declspec(x)=__attribute__((x)) \
 113   -D__i386__ -D__i386 \
 114   %{mno-win32: %{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
 115   %{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{mthreads:-D_MT} " MINGW_INCLUDES \
 116     " -mwin32} \
 117   %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix \
 118     " CYGWIN_INCLUDES "} \
 119   %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT " CYGWIN_W32API "} \
 120 "
 121
 122 /* This macro defines names of additional specifications to put in the specs
 123    that can be used in various specifications like CC1_SPEC.  Its definition
 124    is an initializer with a subgrouping for each command option.
 125
 126    Each subgrouping contains a string constant, that defines the
 127    specification name, and a string constant that used by the GNU CC driver
 128    program.
 129
 130    Do not define this macro if it does not need to do anything.  */
 131
 132 #undef  SUBTARGET_EXTRA_SPECS
 133 #define SUBTARGET_EXTRA_SPECS                                           \
 134   { "mingw_include_path", DEFAULT_TARGET_MACHINE }
 135
 136 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
 137    the Unix stuff is in cygwin.dll.  The import library is called
 138    'libcygwin.a'.  For Windows applications, include more libraries, but
 139    always include kernel32.  We'd like to specific subsystem windows to
 140    ld, but that doesn't work just yet.  */
 141
 142 #undef LIB_SPEC
 143 #define LIB_SPEC "%{pg:-lgmon} \
 144   %{!mno-cygwin:-lcygwin} \
 145   %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
 146   %{mwindows:-lgdi32 -lcomdlg32} \
 147   -luser32 -lkernel32 -ladvapi32 -lshell32"
 148
 149 #define LINK_SPEC "%{mwindows:--subsystem windows} \
 150   %{mconsole:--subsystem console} \
 151   %{shared: %{mdll: %eshared and mdll are not compatible}} \
 152   %{shared: --shared} %{mdll:--dll} \
 153   %{static:-Bstatic} %{!static:-Bdynamic} \
 154   %{shared|mdll: -e \
 155     %{mno-cygwin:_DllMainCRTStartup@12} \
 156     %{!mno-cygwin:__cygwin_dll_entry@12}}"
 157
 158 #undef MATH_LIBRARY
 159 #define MATH_LIBRARY ""
 160
 161 #define SIZE_TYPE "unsigned int"
 162 #define PTRDIFF_TYPE "int"
 163 #define WCHAR_UNSIGNED 1
 164 #define WCHAR_TYPE_SIZE 16
 165 #define WCHAR_TYPE "short unsigned int"
 166
 167 \f
 168 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
 169 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
 170
 171 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 172    is a valid machine specific attribute for DECL.
 173    The attributes in ATTRIBUTES have previously been assigned to DECL.  */
 174
 175 union tree_node;
 176 #define TREE union tree_node *
 177
 178 #undef VALID_MACHINE_DECL_ATTRIBUTE
 179 #define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
 180   i386_pe_valid_decl_attribute_p (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
 181 extern int i386_pe_valid_decl_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 182
 183 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 184    is a valid machine specific attribute for TYPE.
 185    The attributes in ATTRIBUTES have previously been assigned to TYPE.  */
 186
 187 #undef VALID_MACHINE_TYPE_ATTRIBUTE
 188 #define VALID_MACHINE_TYPE_ATTRIBUTE(TYPE, ATTRIBUTES, IDENTIFIER, ARGS) \
 189   i386_pe_valid_type_attribute_p (TYPE, ATTRIBUTES, IDENTIFIER, ARGS)
 190 extern int i386_pe_valid_type_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 191
 192 extern union tree_node *i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 193 #define MERGE_MACHINE_DECL_ATTRIBUTES(OLD, NEW) \
 194   i386_pe_merge_decl_attributes ((OLD), (NEW))
 195 extern TREE i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 196
 197 /* Used to implement dllexport overriding dllimport semantics.  It's also used
 198    to handle vtables - the first pass won't do anything because
 199    DECL_CONTEXT (DECL) will be 0 so i386_pe_dll{ex,im}port_p will return 0.
 200    It's also used to handle dllimport override semantics.  */
 201 #if 0
 202 #define REDO_SECTION_INFO_P(DECL) \
 203   ((DECL_MACHINE_ATTRIBUTES (DECL) != NULL_TREE) \
 204    || (TREE_CODE (DECL) == VAR_DECL && DECL_VIRTUAL_P (DECL)))
 205 #else
 206 #define REDO_SECTION_INFO_P(DECL) 1
 207 #endif
 208
 209 \f
 210 #undef EXTRA_SECTIONS
 211 #define EXTRA_SECTIONS in_ctor, in_dtor, in_drectve
 212
 213 #undef EXTRA_SECTION_FUNCTIONS
 214 #define EXTRA_SECTION_FUNCTIONS                                 \
 215   CTOR_SECTION_FUNCTION                                         \
 216   DTOR_SECTION_FUNCTION                                         \
 217   DRECTVE_SECTION_FUNCTION                                      \
 218   SWITCH_TO_SECTION_FUNCTION
 219
 220 #define CTOR_SECTION_FUNCTION                                   \
 221 void                                                            \
 222 ctor_section ()                                                 \
 223 {                                                               \
 224   if (in_section != in_ctor)                                    \
 225     {                                                           \
 226       fprintf (asm_out_file, "\t.section .ctor\n");             \
 227       in_section = in_ctor;                                     \
 228     }                                                           \
 229 }
 230
 231 #define DTOR_SECTION_FUNCTION                                   \
 232 void                                                            \
 233 dtor_section ()                                                 \
 234 {                                                               \
 235   if (in_section != in_dtor)                                    \
 236     {                                                           \
 237       fprintf (asm_out_file, "\t.section .dtor\n");             \
 238       in_section = in_dtor;                                     \
 239     }                                                           \
 240 }
 241
 242 #define DRECTVE_SECTION_FUNCTION \
 243 void                                                                    \
 244 drectve_section ()                                                      \
 245 {                                                                       \
 246   if (in_section != in_drectve)                                         \
 247     {                                                                   \
 248       fprintf (asm_out_file, "%s\n", "\t.section .drectve\n");          \
 249       in_section = in_drectve;                                          \
 250     }                                                                   \
 251 }
 252
 253 /* Switch to SECTION (an `enum in_section').
 254
 255    ??? This facility should be provided by GCC proper.
 256    The problem is that we want to temporarily switch sections in
 257    ASM_DECLARE_OBJECT_NAME and then switch back to the original section
 258    afterwards.  */
 259 #define SWITCH_TO_SECTION_FUNCTION                              \
 260 void                                                            \
 261 switch_to_section (section, decl)                               \
 262      enum in_section section;                                   \
 263      tree decl;                                                 \
 264 {                                                               \
 265   switch (section)                                              \
 266     {                                                           \
 267       case in_text: text_section (); break;                     \
 268       case in_data: data_section (); break;                     \
 269       case in_named: named_section (decl, NULL, 0); break;      \
 270       case in_ctor: ctor_section (); break;                     \
 271       case in_dtor: dtor_section (); break;                     \
 272       case in_drectve: drectve_section (); break;               \
 273       default: abort (); break;                                 \
 274     }                                                           \
 275 }
 276
 277 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
 278   do {                                          \
 279     ctor_section ();                            \
 280     fprintf (FILE, "%s\t", ASM_LONG);           \
 281     assemble_name (FILE, NAME);                 \
 282     fprintf (FILE, "\n");                       \
 283   } while (0)
 284
 285 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
 286   do {                                          \
 287     dtor_section ();                            \
 288     fprintf (FILE, "%s\t", ASM_LONG);           \
 289     assemble_name (FILE, NAME);                 \
 290     fprintf (FILE, "\n");                       \
 291   } while (0)
 292
 293 /* Don't allow flag_pic to propagate since gas may produce invalid code
 294    otherwise. */
 295
 296 #undef  SUBTARGET_OVERRIDE_OPTIONS
 297 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 298 do {                                                                    \
 299   if (flag_pic)                                                         \
 300     {                                                                   \
 301       warning ("-f%s ignored for target (all code is position independent)",\
 302                (flag_pic > 1) ? "PIC" : "pic");                         \
 303       flag_pic = 0;                                                     \
 304     }                                                                   \
 305 } while (0)                                                             \
 306
 307 /* Define this macro if references to a symbol must be treated
 308    differently depending on something about the variable or
 309    function named by the symbol (such as what section it is in).
 310
 311    On i386 running Windows NT, modify the assembler name with a suffix
 312    consisting of an atsign (@) followed by string of digits that represents
 313    the number of bytes of arguments passed to the function, if it has the
 314    attribute STDCALL.
 315
 316    In addition, we must mark dll symbols specially. Definitions of
 317    dllexport'd objects install some info in the .drectve section.
 318    References to dllimport'd objects are fetched indirectly via
 319    _imp__.  If both are declared, dllexport overrides.  This is also
 320    needed to implement one-only vtables: they go into their own
 321    section and we need to set DECL_SECTION_NAME so we do that here.
 322    Note that we can be called twice on the same decl.  */
 323
 324 extern void i386_pe_encode_section_info PARAMS ((TREE));
 325
 326 #ifdef ENCODE_SECTION_INFO
 327 #undef ENCODE_SECTION_INFO
 328 #endif
 329 #define ENCODE_SECTION_INFO(DECL) i386_pe_encode_section_info (DECL)
 330
 331 /* Utility used only in this file.  */
 332 #define I386_PE_STRIP_ENCODING(SYM_NAME) \
 333   ((SYM_NAME) + ((SYM_NAME)[0] == '@' ? 3 : 0))
 334
 335 /* This macro gets just the user-specified name
 336    out of the string in a SYMBOL_REF.  Discard
 337    trailing @[NUM] encoded by ENCODE_SECTION_INFO.  */
 338 #undef  STRIP_NAME_ENCODING
 339 #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME)                            \
 340 do {                                                                    \
 341   const char *_p;                                                       \
 342   const char *_name = I386_PE_STRIP_ENCODING (SYMBOL_NAME);             \
 343   for (_p = _name; *_p && *_p != '@'; ++_p)                             \
 344     ;                                                                   \
 345   if (*_p == '@')                                                       \
 346     {                                                                   \
 347       int _len = _p - _name;                                            \
 348       char *_new_name = (char *) alloca (_len + 1);                     \
 349       strncpy (_new_name, _name, _len);                                 \
 350       _new_name[_len] = '\0';                                           \
 351       (VAR) = _new_name;                                                \
 352     }                                                                   \
 353   else                                                                  \
 354     (VAR) = _name;                                                      \
 355 } while (0)
 356
 357 \f
 358 /* Output a reference to a label.  */
 359 #undef ASM_OUTPUT_LABELREF
 360 #define ASM_OUTPUT_LABELREF(STREAM, NAME)               \
 361   fprintf (STREAM, "%s%s", USER_LABEL_PREFIX,           \
 362            I386_PE_STRIP_ENCODING (NAME))               \
 363
 364 /* Output a common block.  */
 365 #undef ASM_OUTPUT_COMMON
 366 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)  \
 367 do {                                                    \
 368   if (i386_pe_dllexport_name_p (NAME))                  \
 369     i386_pe_record_exported_symbol (NAME, 1);           \
 370   if (! i386_pe_dllimport_name_p (NAME))                \
 371     {                                                   \
 372       fprintf ((STREAM), "\t.comm\t");                  \
 373       assemble_name ((STREAM), (NAME));                 \
 374       fprintf ((STREAM), ", %d\t%s %d\n",               \
 375                (ROUNDED), ASM_COMMENT_START, (SIZE));   \
 376     }                                                   \
 377 } while (0)
 378
 379 /* Output the label for an initialized variable.  */
 380 #undef ASM_DECLARE_OBJECT_NAME
 381 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)     \
 382 do {                                                    \
 383   if (i386_pe_dllexport_name_p (NAME))                  \
 384     i386_pe_record_exported_symbol (NAME, 1);           \
 385   ASM_OUTPUT_LABEL ((STREAM), (NAME));                  \
 386 } while (0)
 387
 388 \f
 389 /* Emit code to check the stack when allocating more that 4000
 390    bytes in one go. */
 391
 392 #define CHECK_STACK_LIMIT 4000
 393
 394 /* By default, target has a 80387, uses IEEE compatible arithmetic,
 395    and returns float values in the 387 and needs stack probes */
 396 #undef TARGET_SUBTARGET_DEFAULT
 397
 398 #define TARGET_SUBTARGET_DEFAULT \
 399    (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE)
 400
 401 /* This is how to output an assembler line
 402    that says to advance the location counter
 403    to a multiple of 2**LOG bytes.  */
 404
 405 #undef ASM_OUTPUT_ALIGN
 406 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 407     if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
 408
 409 /* Define this macro if in some cases global symbols from one translation
 410    unit may not be bound to undefined symbols in another translation unit
 411    without user intervention.  For instance, under Microsoft Windows
 412    symbols must be explicitly imported from shared libraries (DLLs).  */
 413 #define MULTIPLE_SYMBOL_SPACES
 414
 415 #define UNIQUE_SECTION_P(DECL) DECL_ONE_ONLY (DECL)
 416 extern void i386_pe_unique_section PARAMS ((TREE, int));
 417 #define UNIQUE_SECTION(DECL,RELOC) i386_pe_unique_section (DECL, RELOC)
 418
 419 #define SUPPORTS_ONE_ONLY 1
 420
 421 /* A C statement to output something to the assembler file to switch to section
 422    NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
 423    NULL_TREE.  Some target formats do not support arbitrary sections.  Do not
 424    define this macro in such cases.  */
 425 #undef ASM_OUTPUT_SECTION_NAME
 426 #define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC)              \
 427 do {                                                                    \
 428   static struct section_info                                            \
 429     {                                                                   \
 430       struct section_info *next;                                        \
 431       char *name;                                                       \
 432       enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type;                \
 433     } *sections;                                                        \
 434   struct section_info *s;                                               \
 435   const char *mode;                                                     \
 436   enum sect_enum type;                                                  \
 437                                                                         \
 438   for (s = sections; s; s = s->next)                                    \
 439     if (!strcmp (NAME, s->name))                                        \
 440       break;                                                            \
 441                                                                         \
 442   if (DECL && TREE_CODE (DECL) == FUNCTION_DECL)                        \
 443     type = SECT_EXEC, mode = "x";                                       \
 444   else if (DECL && DECL_READONLY_SECTION (DECL, RELOC))                 \
 445     type = SECT_RO, mode = "";                                          \
 446   else                                                                  \
 447     {                                                                   \
 448       type = SECT_RW;                                                   \
 449       if (TREE_CODE (DECL) == VAR_DECL                                  \
 450           && lookup_attribute ("shared", DECL_MACHINE_ATTRIBUTES (DECL))) \
 451         mode = "ws";                                                    \
 452       else                                                              \
 453         mode = "w";                                                     \
 454     }                                                                   \
 455                                                                         \
 456   if (s == 0)                                                           \
 457     {                                                                   \
 458       s = (struct section_info *) xmalloc (sizeof (struct section_info)); \
 459       s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME));         \
 460       strcpy (s->name, NAME);                                           \
 461       s->type = type;                                                   \
 462       s->next = sections;                                               \
 463       sections = s;                                                     \
 464       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 465       /* Functions may have been compiled at various levels of          \
 466          optimization so we can't use `same_size' here.  Instead,       \
 467          have the linker pick one.  */                                  \
 468       if ((DECL) && DECL_ONE_ONLY (DECL))                               \
 469         fprintf (STREAM, "\t.linkonce %s\n",                            \
 470                  TREE_CODE (DECL) == FUNCTION_DECL                      \
 471                  ? "discard" : "same_size");                            \
 472     }                                                                   \
 473   else                                                                  \
 474     {                                                                   \
 475       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 476     }                                                                   \
 477 } while (0)
 478
 479 /* Write the extra assembler code needed to declare a function
 480    properly.  If we are generating SDB debugging information, this
 481    will happen automatically, so we only need to handle other cases.  */
 482 #undef ASM_DECLARE_FUNCTION_NAME
 483 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 484   do                                                                    \
 485     {                                                                   \
 486       if (i386_pe_dllexport_name_p (NAME))                              \
 487         i386_pe_record_exported_symbol (NAME, 0);                       \
 488       if (write_symbols != SDB_DEBUG)                                   \
 489         i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
 490       ASM_OUTPUT_LABEL (FILE, NAME);                                    \
 491     }                                                                   \
 492   while (0)
 493
 494 /* Add an external function to the list of functions to be declared at
 495    the end of the file.  */
 496 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                           \
 497   do                                                                    \
 498     {                                                                   \
 499       if (TREE_CODE (DECL) == FUNCTION_DECL)                            \
 500         i386_pe_record_external_function (NAME);                        \
 501     }                                                                   \
 502   while (0)
 503
 504 /* Declare the type properly for any external libcall.  */
 505 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
 506   i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
 507
 508 /* This says out to put a global symbol in the BSS section. */
 509 #undef ASM_OUTPUT_ALIGNED_BSS
 510 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 511   asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
 512
 513 /* Output function declarations at the end of the file.  */
 514 #undef ASM_FILE_END
 515 #define ASM_FILE_END(FILE) \
 516   i386_pe_asm_file_end (FILE)
 517
 518 #undef ASM_COMMENT_START
 519 #define ASM_COMMENT_START " #"
 520
 521 /* DWARF2 Unwinding doesn't work with exception handling yet. */
 522 #define DWARF2_UNWIND_INFO 0
 523
 524 /* Don't assume anything about the header files. */
 525 #define NO_IMPLICIT_EXTERN_C
 526
 527 #define SUBTARGET_PROLOGUE                                              \
 528   if (profile_flag                                                      \
 529       && MAIN_NAME_P (DECL_NAME (current_function_decl)))               \
 530      {                                                                  \
 531       emit_call_insn (gen_rtx (CALL, VOIDmode,                          \
 532         gen_rtx_MEM (FUNCTION_MODE,                                     \
 533                      gen_rtx_SYMBOL_REF (Pmode, "_monstartup")),        \
 534         const0_rtx));                                                   \
 535      }
 536
 537 /* External function declarations.  */
 538
 539 extern void i386_pe_record_external_function PARAMS ((char *));
 540 /* extern void i386_pe_declare_function_type PARAMS ((FILE *, char *, int)); */
 541 extern void i386_pe_record_exported_symbol PARAMS ((char *, int));
 542 /* extern void i386_pe_asm_file_end PARAMS ((FILE *)); */
 543
 544 /* For Win32 ABI compatibility */
 545 #undef DEFAULT_PCC_STRUCT_RETURN
 546 #define DEFAULT_PCC_STRUCT_RETURN 0
 547
 548 /* No data type wants to be aligned rounder than this.  */
 549 #undef  BIGGEST_ALIGNMENT
 550 #define BIGGEST_ALIGNMENT 128
 551
 552 /* A bitfield declared as `int' forces `int' alignment for the struct.  */
 553 #undef PCC_BITFIELDS_TYPE_MATTERS
 554 #define PCC_BITFIELDS_TYPE_MATTERS 1
 555 #define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
 556
 557
 558 /* Enable alias attribute support.  */
 559 #ifndef SET_ASM_OP
 560 #define SET_ASM_OP "\t.set\t"
 561 #endif
 562
 563 #ifndef INT_ASM_OP
 564 #define INT_ASM_OP "\t.long\t"
 565 #endif
 566
 567 #undef MD_STARTFILE_PREFIX
 568 #define MD_STARTFILE_PREFIX     "/usr/lib/"
 569
 570 #undef STANDARD_STARTFILE_PREFIX
 571 #define STANDARD_STARTFILE_PREFIX     "/usr/lib/mingw/"
 572
 573 #ifndef CROSS_COMPILE
 574 #undef LOCAL_INCLUDE_DIR
 575 #undef TOOL_INCLUDE_DIR
 576 #undef SYSTEM_INCLUDE_DIR
 577 #undef STANDARD_INCLUDE_DIR
 578 #define STANDARD_INCLUDE_DIR 0
 579 #endif
 580
 581 #undef TREE
 582
 583 #ifndef BUFSIZ
 584 # undef FILE
 585 #endif