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 "-I" 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 "-I" CYGWIN_CROSS_DIR "/include/mingw"
  88 #else
  89 #define CYGWIN_INCLUDES "-isystem /usr/local/include -idirafter /usr/include"
  90 #define CYGWIN_W32API "-I/usr/include/w32api"
  91 #define CYGWIN_LIB "/usr/lib"
  92 #define MINGW_LIBS "-L/usr/local/lib/mingw -L/usr/lib/mingw"
  93 #define MINGW_INCLUDES "-isystem /usr/local/include/mingw -idirafter /usr/include/mingw"
  94 #endif
  95
  96 #undef STARTFILE_SPEC
  97 #define STARTFILE_SPEC "%{shared|mdll: %{mno-cygwin:dllcrt2%O%s}} \
  98   %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:" MINGW_LIBS " mingw/crt2%O%s} \
  99   %{pg:gcrt0%O%s}}}"
 100
 101 #undef CPP_SPEC
 102 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
 103   -D__stdcall=__attribute__((__stdcall__)) \
 104   -D__cdecl=__attribute__((__cdecl__)) \
 105   %{!ansi:-D_stdcall=__attribute__((__stdcall__)) \
 106     -D_cdecl=__attribute__((__cdecl__))} \
 107   -D__declspec(x)=__attribute__((x)) \
 108   -D__i386__ -D__i386 \
 109   %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix \
 110     " CYGWIN_INCLUDES "} \
 111   %{mno-win32: %{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
 112   %{mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT -D__MSVCRT__ \
 113     -D__MINGW32__=0.3 %{mthreads:-D_MT} " MINGW_INCLUDES " " CYGWIN_W32API "\
 114     -iwithprefixbefore ../../../../mingw/include/g++-3 \
 115     -iwithprefixbefore ../../../../mingw/include \
 116     -iwithprefixbefore ../../../../mingw32/include/g++-3 \
 117     -iwithprefixbefore ../../../../mingw32/include } \
 118    %{!mno-win32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT " CYGWIN_W32API "}"
 119
 120 /* This macro defines names of additional specifications to put in the specs
 121    that can be used in various specifications like CC1_SPEC.  Its definition
 122    is an initializer with a subgrouping for each command option.
 123
 124    Each subgrouping contains a string constant, that defines the
 125    specification name, and a string constant that used by the GNU CC driver
 126    program.
 127
 128    Do not define this macro if it does not need to do anything.  */
 129
 130 #undef  SUBTARGET_EXTRA_SPECS
 131 #define SUBTARGET_EXTRA_SPECS                                           \
 132   { "mingw_include_path", DEFAULT_TARGET_MACHINE }
 133
 134 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
 135    the Unix stuff is in cygwin.dll.  The import library is called
 136    'libcygwin.a'.  For Windows applications, include more libraries, but
 137    always include kernel32.  We'd like to specific subsystem windows to
 138    ld, but that doesn't work just yet.  */
 139
 140 #undef LIB_SPEC
 141 #define LIB_SPEC "%{pg:-lgmon} \
 142   %{!mno-cygwin:-lcygwin} \
 143   %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
 144   %{mwindows:-lgdi32 -lcomdlg32} \
 145   -luser32 -lkernel32 -ladvapi32 -lshell32"
 146
 147 #define LINK_SPEC "%{mwindows:--subsystem windows} \
 148   %{mconsole:--subsystem console} \
 149   %{shared: %{mdll: %eshared and mdll are not compatible}} \
 150   %{shared: --shared} %{mdll:--dll} \
 151   %{static:-Bstatic} %{!static:-Bdynamic} \
 152   %{shared|mdll: -e \
 153     %{mno-cygwin:_DllMainCRTStartup@12} \
 154     %{!mno-cygwin:__cygwin_dll_entry@12}}"
 155
 156 #undef MATH_LIBRARY
 157 #define MATH_LIBRARY ""
 158
 159 #define SIZE_TYPE "unsigned int"
 160 #define PTRDIFF_TYPE "int"
 161 #define WCHAR_UNSIGNED 1
 162 #define WCHAR_TYPE_SIZE 16
 163 #define WCHAR_TYPE "short unsigned int"
 164
 165 \f
 166 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
 167 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
 168
 169 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 170    is a valid machine specific attribute for DECL.
 171    The attributes in ATTRIBUTES have previously been assigned to DECL.  */
 172
 173 union tree_node;
 174 #define TREE union tree_node *
 175
 176 #undef VALID_MACHINE_DECL_ATTRIBUTE
 177 #define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
 178   i386_pe_valid_decl_attribute_p (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
 179 extern int i386_pe_valid_decl_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 180
 181 /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
 182    is a valid machine specific attribute for TYPE.
 183    The attributes in ATTRIBUTES have previously been assigned to TYPE.  */
 184
 185 #undef VALID_MACHINE_TYPE_ATTRIBUTE
 186 #define VALID_MACHINE_TYPE_ATTRIBUTE(TYPE, ATTRIBUTES, IDENTIFIER, ARGS) \
 187   i386_pe_valid_type_attribute_p (TYPE, ATTRIBUTES, IDENTIFIER, ARGS)
 188 extern int i386_pe_valid_type_attribute_p PARAMS ((TREE, TREE, TREE, TREE));
 189
 190 extern union tree_node *i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 191 #define MERGE_MACHINE_DECL_ATTRIBUTES(OLD, NEW) \
 192   i386_pe_merge_decl_attributes ((OLD), (NEW))
 193 extern TREE i386_pe_merge_decl_attributes PARAMS ((TREE, TREE));
 194
 195 /* Used to implement dllexport overriding dllimport semantics.  It's also used
 196    to handle vtables - the first pass won't do anything because
 197    DECL_CONTEXT (DECL) will be 0 so i386_pe_dll{ex,im}port_p will return 0.
 198    It's also used to handle dllimport override semantics.  */
 199 #if 0
 200 #define REDO_SECTION_INFO_P(DECL) \
 201   ((DECL_MACHINE_ATTRIBUTES (DECL) != NULL_TREE) \
 202    || (TREE_CODE (DECL) == VAR_DECL && DECL_VIRTUAL_P (DECL)))
 203 #else
 204 #define REDO_SECTION_INFO_P(DECL) 1
 205 #endif
 206
 207 \f
 208 #undef EXTRA_SECTIONS
 209 #define EXTRA_SECTIONS in_ctor, in_dtor, in_drectve
 210
 211 #undef EXTRA_SECTION_FUNCTIONS
 212 #define EXTRA_SECTION_FUNCTIONS                                 \
 213   CTOR_SECTION_FUNCTION                                         \
 214   DTOR_SECTION_FUNCTION                                         \
 215   DRECTVE_SECTION_FUNCTION                                      \
 216   SWITCH_TO_SECTION_FUNCTION
 217
 218 #define CTOR_SECTION_FUNCTION                                   \
 219 void                                                            \
 220 ctor_section ()                                                 \
 221 {                                                               \
 222   if (in_section != in_ctor)                                    \
 223     {                                                           \
 224       fprintf (asm_out_file, "\t.section .ctor\n");             \
 225       in_section = in_ctor;                                     \
 226     }                                                           \
 227 }
 228
 229 #define DTOR_SECTION_FUNCTION                                   \
 230 void                                                            \
 231 dtor_section ()                                                 \
 232 {                                                               \
 233   if (in_section != in_dtor)                                    \
 234     {                                                           \
 235       fprintf (asm_out_file, "\t.section .dtor\n");             \
 236       in_section = in_dtor;                                     \
 237     }                                                           \
 238 }
 239
 240 #define DRECTVE_SECTION_FUNCTION \
 241 void                                                                    \
 242 drectve_section ()                                                      \
 243 {                                                                       \
 244   if (in_section != in_drectve)                                         \
 245     {                                                                   \
 246       fprintf (asm_out_file, "%s\n", "\t.section .drectve\n");          \
 247       in_section = in_drectve;                                          \
 248     }                                                                   \
 249 }
 250
 251 /* Switch to SECTION (an `enum in_section').
 252
 253    ??? This facility should be provided by GCC proper.
 254    The problem is that we want to temporarily switch sections in
 255    ASM_DECLARE_OBJECT_NAME and then switch back to the original section
 256    afterwards.  */
 257 #define SWITCH_TO_SECTION_FUNCTION                              \
 258 void                                                            \
 259 switch_to_section (section, decl)                               \
 260      enum in_section section;                                   \
 261      tree decl;                                                 \
 262 {                                                               \
 263   switch (section)                                              \
 264     {                                                           \
 265       case in_text: text_section (); break;                     \
 266       case in_data: data_section (); break;                     \
 267       case in_named: named_section (decl, NULL, 0); break;      \
 268       case in_ctor: ctor_section (); break;                     \
 269       case in_dtor: dtor_section (); break;                     \
 270       case in_drectve: drectve_section (); break;               \
 271       default: abort (); break;                                 \
 272     }                                                           \
 273 }
 274
 275 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
 276   do {                                          \
 277     ctor_section ();                            \
 278     fprintf (FILE, "%s\t", ASM_LONG);           \
 279     assemble_name (FILE, NAME);                 \
 280     fprintf (FILE, "\n");                       \
 281   } while (0)
 282
 283 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
 284   do {                                          \
 285     dtor_section ();                            \
 286     fprintf (FILE, "%s\t", ASM_LONG);           \
 287     assemble_name (FILE, NAME);                 \
 288     fprintf (FILE, "\n");                       \
 289   } while (0)
 290
 291 /* Don't allow flag_pic to propagate since gas may produce invalid code
 292    otherwise. */
 293
 294 #undef  SUBTARGET_OVERRIDE_OPTIONS
 295 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 296 do {                                                                    \
 297   if (flag_pic)                                                         \
 298     {                                                                   \
 299       warning ("-f%s ignored for target (all code is position independent)",\
 300                (flag_pic > 1) ? "PIC" : "pic");                         \
 301       flag_pic = 0;                                                     \
 302     }                                                                   \
 303 } while (0)                                                             \
 304
 305 /* Define this macro if references to a symbol must be treated
 306    differently depending on something about the variable or
 307    function named by the symbol (such as what section it is in).
 308
 309    On i386 running Windows NT, modify the assembler name with a suffix
 310    consisting of an atsign (@) followed by string of digits that represents
 311    the number of bytes of arguments passed to the function, if it has the
 312    attribute STDCALL.
 313
 314    In addition, we must mark dll symbols specially. Definitions of
 315    dllexport'd objects install some info in the .drectve section.
 316    References to dllimport'd objects are fetched indirectly via
 317    _imp__.  If both are declared, dllexport overrides.  This is also
 318    needed to implement one-only vtables: they go into their own
 319    section and we need to set DECL_SECTION_NAME so we do that here.
 320    Note that we can be called twice on the same decl.  */
 321
 322 extern void i386_pe_encode_section_info PARAMS ((TREE));
 323
 324 #ifdef ENCODE_SECTION_INFO
 325 #undef ENCODE_SECTION_INFO
 326 #endif
 327 #define ENCODE_SECTION_INFO(DECL) i386_pe_encode_section_info (DECL)
 328
 329 /* Utility used only in this file.  */
 330 #define I386_PE_STRIP_ENCODING(SYM_NAME) \
 331   ((SYM_NAME) + ((SYM_NAME)[0] == '@' ? 3 : 0))
 332
 333 /* This macro gets just the user-specified name
 334    out of the string in a SYMBOL_REF.  Discard
 335    trailing @[NUM] encoded by ENCODE_SECTION_INFO.  */
 336 #undef  STRIP_NAME_ENCODING
 337 #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME)                            \
 338 do {                                                                    \
 339   const char *_p;                                                       \
 340   const char *_name = I386_PE_STRIP_ENCODING (SYMBOL_NAME);             \
 341   for (_p = _name; *_p && *_p != '@'; ++_p)                             \
 342     ;                                                                   \
 343   if (*_p == '@')                                                       \
 344     {                                                                   \
 345       int _len = _p - _name;                                            \
 346       char *_new_name = (char *) alloca (_len + 1);                     \
 347       strncpy (_new_name, _name, _len);                                 \
 348       _new_name[_len] = '\0';                                           \
 349       (VAR) = _new_name;                                                \
 350     }                                                                   \
 351   else                                                                  \
 352     (VAR) = _name;                                                      \
 353 } while (0)
 354
 355 \f
 356 /* Output a reference to a label.  */
 357 #undef ASM_OUTPUT_LABELREF
 358 #define ASM_OUTPUT_LABELREF(STREAM, NAME)               \
 359   fprintf (STREAM, "%s%s", USER_LABEL_PREFIX,           \
 360            I386_PE_STRIP_ENCODING (NAME))               \
 361
 362 /* Output a common block.  */
 363 #undef ASM_OUTPUT_COMMON
 364 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)  \
 365 do {                                                    \
 366   if (i386_pe_dllexport_name_p (NAME))                  \
 367     i386_pe_record_exported_symbol (NAME, 1);           \
 368   if (! i386_pe_dllimport_name_p (NAME))                \
 369     {                                                   \
 370       fprintf ((STREAM), "\t.comm\t");                  \
 371       assemble_name ((STREAM), (NAME));                 \
 372       fprintf ((STREAM), ", %d\t%s %d\n",               \
 373                (ROUNDED), ASM_COMMENT_START, (SIZE));   \
 374     }                                                   \
 375 } while (0)
 376
 377 /* Output the label for an initialized variable.  */
 378 #undef ASM_DECLARE_OBJECT_NAME
 379 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)     \
 380 do {                                                    \
 381   if (i386_pe_dllexport_name_p (NAME))                  \
 382     i386_pe_record_exported_symbol (NAME, 1);           \
 383   ASM_OUTPUT_LABEL ((STREAM), (NAME));                  \
 384 } while (0)
 385
 386 \f
 387 /* Emit code to check the stack when allocating more that 4000
 388    bytes in one go. */
 389
 390 #define CHECK_STACK_LIMIT 4000
 391
 392 /* By default, target has a 80387, uses IEEE compatible arithmetic,
 393    and returns float values in the 387 and needs stack probes */
 394 #undef TARGET_DEFAULT
 395
 396 #define TARGET_DEFAULT \
 397    (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE)
 398
 399 /* This is how to output an assembler line
 400    that says to advance the location counter
 401    to a multiple of 2**LOG bytes.  */
 402
 403 #undef ASM_OUTPUT_ALIGN
 404 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
 405     if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
 406
 407 /* Define this macro if in some cases global symbols from one translation
 408    unit may not be bound to undefined symbols in another translation unit
 409    without user intervention.  For instance, under Microsoft Windows
 410    symbols must be explicitly imported from shared libraries (DLLs).  */
 411 #define MULTIPLE_SYMBOL_SPACES
 412
 413 #define UNIQUE_SECTION_P(DECL) DECL_ONE_ONLY (DECL)
 414 extern void i386_pe_unique_section PARAMS ((TREE, int));
 415 #define UNIQUE_SECTION(DECL,RELOC) i386_pe_unique_section (DECL, RELOC)
 416
 417 #define SUPPORTS_ONE_ONLY 1
 418
 419 /* A C statement to output something to the assembler file to switch to section
 420    NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
 421    NULL_TREE.  Some target formats do not support arbitrary sections.  Do not
 422    define this macro in such cases.  */
 423 #undef ASM_OUTPUT_SECTION_NAME
 424 #define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC)              \
 425 do {                                                                    \
 426   static struct section_info                                            \
 427     {                                                                   \
 428       struct section_info *next;                                        \
 429       char *name;                                                       \
 430       enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type;                \
 431     } *sections;                                                        \
 432   struct section_info *s;                                               \
 433   const char *mode;                                                     \
 434   enum sect_enum type;                                                  \
 435                                                                         \
 436   for (s = sections; s; s = s->next)                                    \
 437     if (!strcmp (NAME, s->name))                                        \
 438       break;                                                            \
 439                                                                         \
 440   if (DECL && TREE_CODE (DECL) == FUNCTION_DECL)                        \
 441     type = SECT_EXEC, mode = "x";                                       \
 442   else if (DECL && DECL_READONLY_SECTION (DECL, RELOC))                 \
 443     type = SECT_RO, mode = "";                                          \
 444   else                                                                  \
 445     {                                                                   \
 446       type = SECT_RW;                                                   \
 447       if (TREE_CODE (DECL) == VAR_DECL                                  \
 448           && lookup_attribute ("shared", DECL_MACHINE_ATTRIBUTES (DECL))) \
 449         mode = "ws";                                                    \
 450       else                                                              \
 451         mode = "w";                                                     \
 452     }                                                                   \
 453                                                                         \
 454   if (s == 0)                                                           \
 455     {                                                                   \
 456       s = (struct section_info *) xmalloc (sizeof (struct section_info)); \
 457       s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME));         \
 458       strcpy (s->name, NAME);                                           \
 459       s->type = type;                                                   \
 460       s->next = sections;                                               \
 461       sections = s;                                                     \
 462       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 463       /* Functions may have been compiled at various levels of          \
 464          optimization so we can't use `same_size' here.  Instead,       \
 465          have the linker pick one.  */                                  \
 466       if ((DECL) && DECL_ONE_ONLY (DECL))                               \
 467         fprintf (STREAM, "\t.linkonce %s\n",                            \
 468                  TREE_CODE (DECL) == FUNCTION_DECL                      \
 469                  ? "discard" : "same_size");                            \
 470     }                                                                   \
 471   else                                                                  \
 472     {                                                                   \
 473       fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode);            \
 474     }                                                                   \
 475 } while (0)
 476
 477 /* Write the extra assembler code needed to declare a function
 478    properly.  If we are generating SDB debugging information, this
 479    will happen automatically, so we only need to handle other cases.  */
 480 #undef ASM_DECLARE_FUNCTION_NAME
 481 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 482   do                                                                    \
 483     {                                                                   \
 484       if (i386_pe_dllexport_name_p (NAME))                              \
 485         i386_pe_record_exported_symbol (NAME, 0);                       \
 486       if (write_symbols != SDB_DEBUG)                                   \
 487         i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
 488       ASM_OUTPUT_LABEL (FILE, NAME);                                    \
 489     }                                                                   \
 490   while (0)
 491
 492 /* Add an external function to the list of functions to be declared at
 493    the end of the file.  */
 494 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                           \
 495   do                                                                    \
 496     {                                                                   \
 497       if (TREE_CODE (DECL) == FUNCTION_DECL)                            \
 498         i386_pe_record_external_function (NAME);                        \
 499     }                                                                   \
 500   while (0)
 501
 502 /* Declare the type properly for any external libcall.  */
 503 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
 504   i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
 505
 506 /* This says out to put a global symbol in the BSS section. */
 507 #undef ASM_OUTPUT_ALIGNED_BSS
 508 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 509   asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
 510
 511 /* Output function declarations at the end of the file.  */
 512 #undef ASM_FILE_END
 513 #define ASM_FILE_END(FILE) \
 514   i386_pe_asm_file_end (FILE)
 515
 516 #undef ASM_COMMENT_START
 517 #define ASM_COMMENT_START " #"
 518
 519 /* DWARF2 Unwinding doesn't work with exception handling yet. */
 520 #define DWARF2_UNWIND_INFO 0
 521
 522 /* Don't assume anything about the header files. */
 523 #define NO_IMPLICIT_EXTERN_C
 524
 525 #define SUBTARGET_PROLOGUE                                              \
 526   if (profile_flag                                                      \
 527       && MAIN_NAME_P (DECL_NAME (current_function_decl)))               \
 528      {                                                                  \
 529       emit_call_insn (gen_rtx (CALL, VOIDmode,                          \
 530         gen_rtx_MEM (FUNCTION_MODE,                                     \
 531                      gen_rtx_SYMBOL_REF (Pmode, "_monstartup")),        \
 532         const0_rtx));                                                   \
 533      }
 534
 535 /* External function declarations.  */
 536
 537 extern void i386_pe_record_external_function PARAMS ((char *));
 538 /* extern void i386_pe_declare_function_type PARAMS ((FILE *, char *, int)); */
 539 extern void i386_pe_record_exported_symbol PARAMS ((char *, int));
 540 /* extern void i386_pe_asm_file_end PARAMS ((FILE *)); */
 541
 542 /* For Win32 ABI compatibility */
 543 #undef DEFAULT_PCC_STRUCT_RETURN
 544 #define DEFAULT_PCC_STRUCT_RETURN 0
 545
 546 /* No data type wants to be aligned rounder than this.  */
 547 #undef  BIGGEST_ALIGNMENT
 548 #define BIGGEST_ALIGNMENT 128
 549
 550 /* A bitfield declared as `int' forces `int' alignment for the struct.  */
 551 #undef PCC_BITFIELDS_TYPE_MATTERS
 552 #define PCC_BITFIELDS_TYPE_MATTERS 1
 553 #define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
 554
 555
 556 /* Enable alias attribute support.  */
 557 #ifndef SET_ASM_OP
 558 #define SET_ASM_OP "\t.set\t"
 559 #endif
 560
 561 #ifndef INT_ASM_OP
 562 #define INT_ASM_OP "\t.long\t"
 563 #endif
 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 #ifndef CROSS_COMPILE
 572 #undef LOCAL_INCLUDE_DIR
 573 #undef TOOL_INCLUDE_DIR
 574 #undef SYSTEM_INCLUDE_DIR
 575 #undef STANDARD_INCLUDE_DIR
 576 #define STANDARD_INCLUDE_DIR 0
 577 #endif
 578
 579 #undef TREE
 580
 581 #ifndef BUFSIZ
 582 # undef FILE
 583 #endif