[thirdparty/gcc.git] / gcc / config / i386 / cygming.h

/* Operating system specific defines to be used when targeting GCC for
   hosting on Windows32, using a Unix style C library and tools.
   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   2004, 2005
   Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING.  If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  */

#define DBX_DEBUGGING_INFO 1
#define SDB_DEBUGGING_INFO 1
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

#ifdef HAVE_GAS_PE_SECREL32_RELOC
#define DWARF2_DEBUGGING_INFO 1

#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n) (write_symbols == DWARF2_DEBUG   \
                                ? svr4_dbx_register_map[n]      \
                                : dbx_register_map[n])

/* Use section relative relocations for debugging offsets.  Unlike
   other targets that fake this by putting the section VMA at 0, PE
   won't allow it.  */
#define ASM_OUTPUT_DWARF_OFFSET(FILE, SIZE, LABEL)    \
  do {                                                \
    if (SIZE != 4)                                    \
      abort ();                                       \
                                                      \
    fputs ("\t.secrel32\t", FILE);                    \
    assemble_name (FILE, LABEL);                      \
  } while (0)
#endif

#define TARGET_EXECUTABLE_SUFFIX ".exe"

#include <stdio.h>

#define MAYBE_UWIN_CPP_BUILTINS() /* Nothing.  */

#define TARGET_OS_CPP_BUILTINS()					\
  do									\
    {									\
	builtin_define ("_X86_=1");					\
	builtin_assert ("system=winnt");				\
	builtin_define ("__stdcall=__attribute__((__stdcall__))");	\
	builtin_define ("__fastcall=__attribute__((__fastcall__))");	\
	builtin_define ("__cdecl=__attribute__((__cdecl__))");		\
	if (!flag_iso)							\
	  {								\
	    builtin_define ("_stdcall=__attribute__((__stdcall__))");	\
	    builtin_define ("_fastcall=__attribute__((__fastcall__))");	\
	    builtin_define ("_cdecl=__attribute__((__cdecl__))");	\
	  }								\
	/* Even though linkonce works with static libs, this is needed 	\
	    to compare typeinfo symbols across dll boundaries.  */	\
	builtin_define ("__GXX_MERGED_TYPEINFO_NAMES=0");		\
	MAYBE_UWIN_CPP_BUILTINS ();					\
	EXTRA_OS_CPP_BUILTINS ();					\
  }									\
  while (0)

/* Get tree.c to declare a target-specific specialization of
   merge_decl_attributes.  */
#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1

/* This macro defines names of additional specifications to put in the specs
   that can be used in various specifications like CC1_SPEC.  Its definition
   is an initializer with a subgrouping for each command option.

   Each subgrouping contains a string constant, that defines the
   specification name, and a string constant that used by the GCC driver
   program.

   Do not define this macro if it does not need to do anything.  */

#undef  SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS						\
  { "mingw_include_path", DEFAULT_TARGET_MACHINE }

#undef MATH_LIBRARY
#define MATH_LIBRARY ""

#define SIZE_TYPE "unsigned int"
#define PTRDIFF_TYPE "int"
#define WCHAR_TYPE_SIZE 16
#define WCHAR_TYPE "short unsigned int"

\f
/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
#define HANDLE_PRAGMA_PACK_PUSH_POP 1

union tree_node;
#define TREE union tree_node *
\f
#define drectve_section() \
  (fprintf (asm_out_file, "\t.section .drectve\n"), \
   in_section = NULL)

/* Older versions of gas don't handle 'r' as data.
   Explicitly set data flag with 'd'.  */  
#define READONLY_DATA_SECTION_ASM_OP "\t.section .rdata,\"dr\""

/* Don't allow flag_pic to propagate since gas may produce invalid code
   otherwise.  */

#undef  SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS					\
do {									\
  if (flag_pic)								\
    {									\
      warning (0, "-f%s ignored for target (all code is position independent)",\
	       (flag_pic > 1) ? "PIC" : "pic");				\
      flag_pic = 0;							\
    }									\
} while (0)								\

/* Define this macro if references to a symbol must be treated
   differently depending on something about the variable or
   function named by the symbol (such as what section it is in).

   On i386 running Windows NT, modify the assembler name with a suffix
   consisting of an atsign (@) followed by string of digits that represents
   the number of bytes of arguments passed to the function, if it has the
   attribute STDCALL.

   In addition, we must mark dll symbols specially. Definitions of
   dllexport'd objects install some info in the .drectve section.
   References to dllimport'd objects are fetched indirectly via
   _imp__.  If both are declared, dllexport overrides.  This is also
   needed to implement one-only vtables: they go into their own
   section and we need to set DECL_SECTION_NAME so we do that here.
   Note that we can be called twice on the same decl.  */

#undef SUBTARGET_ENCODE_SECTION_INFO
#define SUBTARGET_ENCODE_SECTION_INFO  i386_pe_encode_section_info
#undef  TARGET_STRIP_NAME_ENCODING
#define TARGET_STRIP_NAME_ENCODING  i386_pe_strip_name_encoding_full
\f
/* Output a reference to a label.  */
#undef ASM_OUTPUT_LABELREF
#define ASM_OUTPUT_LABELREF  i386_pe_output_labelref

#undef  COMMON_ASM_OP
#define COMMON_ASM_OP	"\t.comm\t"

/* Output a common block.  */
#undef ASM_OUTPUT_COMMON
#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)	\
do {							\
  if (i386_pe_dllexport_name_p (NAME))			\
    i386_pe_record_exported_symbol (NAME, 1);		\
  if (! i386_pe_dllimport_name_p (NAME))		\
    {							\
      fprintf ((STREAM), "\t.comm\t");			\
      assemble_name ((STREAM), (NAME));			\
      fprintf ((STREAM), ", %d\t%s %d\n",		\
	       (int)(ROUNDED), ASM_COMMENT_START, (int)(SIZE));	\
    }							\
} while (0)

/* Output the label for an initialized variable.  */
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)	\
do {							\
  if (i386_pe_dllexport_name_p (NAME))			\
    i386_pe_record_exported_symbol (NAME, 1);		\
  ASM_OUTPUT_LABEL ((STREAM), (NAME));			\
} while (0)

\f
/* Emit code to check the stack when allocating more that 4000
   bytes in one go.  */

#define CHECK_STACK_LIMIT 4000

/* By default, target has a 80387, uses IEEE compatible arithmetic,
   returns float values in the 387 and needs stack probes.
   We also align doubles to 64-bits for MSVC default compatibility.  */

#undef TARGET_SUBTARGET_DEFAULT
#define TARGET_SUBTARGET_DEFAULT \
   (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE \
    | MASK_ALIGN_DOUBLE)

/* This is how to output an assembler line
   that says to advance the location counter
   to a multiple of 2**LOG bytes.  */

#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
    if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))

/* Windows uses explicit import from shared libraries.  */
#define MULTIPLE_SYMBOL_SPACES 1

extern void i386_pe_unique_section (TREE, int);
#define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_section
#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section

#define SUPPORTS_ONE_ONLY 1

/* Switch into a generic section.  */
#define TARGET_ASM_NAMED_SECTION  i386_pe_asm_named_section

/* Select attributes for named sections.  */
#define TARGET_SECTION_TYPE_FLAGS  i386_pe_section_type_flags

/* Write the extra assembler code needed to declare a function
   properly.  If we are generating SDB debugging information, this
   will happen automatically, so we only need to handle other cases.  */
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
  do									\
    {									\
      if (i386_pe_dllexport_name_p (NAME))				\
	i386_pe_record_exported_symbol (NAME, 0);			\
      if (write_symbols != SDB_DEBUG)					\
	i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL));	\
      ASM_OUTPUT_LABEL (FILE, NAME);					\
    }									\
  while (0)

/* Add an external function to the list of functions to be declared at
   the end of the file.  */
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)				\
  do									\
    {									\
      if (TREE_CODE (DECL) == FUNCTION_DECL)				\
	i386_pe_record_external_function ((DECL), (NAME));		\
    }									\
  while (0)

/* Declare the type properly for any external libcall.  */
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
  i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)

/* This says out to put a global symbol in the BSS section.  */
#undef ASM_OUTPUT_ALIGNED_BSS
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
  asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))

/* Output function declarations at the end of the file.  */
#undef TARGET_ASM_FILE_END
#define TARGET_ASM_FILE_END i386_pe_file_end

#undef ASM_COMMENT_START
#define ASM_COMMENT_START " #"

/* DWARF2 Unwinding doesn't work with exception handling yet.  To make
   it work, we need to build a libgcc_s.dll, and dcrt0.o should be
   changed to call __register_frame_info/__deregister_frame_info.  */
#define DWARF2_UNWIND_INFO 0

/* Don't assume anything about the header files.  */
#define NO_IMPLICIT_EXTERN_C

#undef PROFILE_HOOK
#define PROFILE_HOOK(LABEL)						\
  if (MAIN_NAME_P (DECL_NAME (current_function_decl)))			\
    {									\
      emit_call_insn (gen_rtx_CALL (VOIDmode,				\
	gen_rtx_MEM (FUNCTION_MODE,					\
		     gen_rtx_SYMBOL_REF (Pmode, "_monstartup")),	\
	const0_rtx));							\
    }

/* Java Native Interface (JNI) methods on Win32 are invoked using the
   stdcall calling convention.  */
#undef MODIFY_JNI_METHOD_CALL
#define MODIFY_JNI_METHOD_CALL(MDECL)					      \
  build_type_attribute_variant ((MDECL),				      \
			       build_tree_list (get_identifier ("stdcall"),   \
						NULL))

/* External function declarations.  */

extern void i386_pe_record_external_function (tree, const char *);
extern void i386_pe_declare_function_type (FILE *, const char *, int);
extern void i386_pe_record_exported_symbol (const char *, int);
extern void i386_pe_file_end (void);
extern int i386_pe_dllexport_name_p (const char *);
extern int i386_pe_dllimport_name_p (const char *);

/* For Win32 ABI compatibility */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0

/* MSVC returns aggregate types of up to 8 bytes via registers.
   See i386.c:ix86_return_in_memory.  */
#undef MS_AGGREGATE_RETURN
#define MS_AGGREGATE_RETURN 1

/* No data type wants to be aligned rounder than this.  */
#undef	BIGGEST_ALIGNMENT
#define BIGGEST_ALIGNMENT 128

/* Native complier aligns internal doubles in structures on dword boundaries.  */
#undef	BIGGEST_FIELD_ALIGNMENT
#define BIGGEST_FIELD_ALIGNMENT 64

/* A bit-field declared as `int' forces `int' alignment for the struct.  */
#undef PCC_BITFIELD_TYPE_MATTERS
#define PCC_BITFIELD_TYPE_MATTERS 1
#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)

/* Enable alias attribute support.  */
#ifndef SET_ASM_OP
#define SET_ASM_OP "\t.set\t"
#endif
/* This implements the `alias' attribute, keeping any stdcall or
   fastcall decoration.  */
#undef	ASM_OUTPUT_DEF_FROM_DECLS
#define	ASM_OUTPUT_DEF_FROM_DECLS(STREAM, DECL, TARGET) 		\
  do									\
    {									\
      const char *alias;						\
      rtx rtlname = XEXP (DECL_RTL (DECL), 0);				\
      if (GET_CODE (rtlname) == SYMBOL_REF)				\
	alias = XSTR (rtlname, 0);					\
      else								\
	abort ();							\
      if (TREE_CODE (DECL) == FUNCTION_DECL)				\
	i386_pe_declare_function_type (STREAM, alias,			\
				       TREE_PUBLIC (DECL));		\
      ASM_OUTPUT_DEF (STREAM, alias, IDENTIFIER_POINTER (TARGET));	\
    } while (0)

/* GNU as supports weak symbols on PECOFF. */
#ifdef HAVE_GAS_WEAK
#define ASM_WEAKEN_LABEL(FILE, NAME)  \
  do                                  \
    {                                 \
      fputs ("\t.weak\t", (FILE));    \
      assemble_name ((FILE), (NAME)); \
      fputc ('\n', (FILE));           \
    }                                 \
  while (0)
#endif /* HAVE_GAS_WEAK */

/* FIXME: SUPPORTS_WEAK && TARGET_HAVE_NAMED_SECTIONS is true,
   but for .jcr section to work we also need crtbegin and crtend
   objects.  */
#define TARGET_USE_JCR_SECTION 0

/* Decide whether it is safe to use a local alias for a virtual function
   when constructing thunks.  */
#undef TARGET_USE_LOCAL_THUNK_ALIAS_P
#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) (!DECL_ONE_ONLY (DECL))

#define SUBTARGET_ATTRIBUTE_TABLE \
  /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
  { "selectany", 0, 0, true, false, false, ix86_handle_selectany_attribute }

/*  mcount() does not need a counter variable.  */
#undef NO_PROFILE_COUNTERS
#define NO_PROFILE_COUNTERS 1

#define TARGET_VALID_DLLIMPORT_ATTRIBUTE_P i386_pe_valid_dllimport_attribute_p
#define TARGET_CXX_ADJUST_CLASS_AT_DEFINITION i386_pe_adjust_class_at_definition

#undef TREE

#ifndef BUFSIZ
# undef FILE
#endif
Commit	Line	Data
70e5e841 CF	1	/* Operating system specific defines to be used when targeting GCC for
70e5e841 CF	2	hosting on Windows32, using a Unix style C library and tools.
fe9565ed KH	3	Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
fe9565ed KH	4	2004, 2005
70e5e841 CF	5	Free Software Foundation, Inc.
70e5e841 CF	6
e20285ad	7	This file is part of GCC.
70e5e841	8
e20285ad	9	GCC is free software; you can redistribute it and/or modify
70e5e841 CF	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2, or (at your option)
	12	any later version.
	13
e20285ad	14	GCC is distributed in the hope that it will be useful,
70e5e841 CF	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
e20285ad	20	along with GCC; see the file COPYING. If not, write to
39d14dda KC	21	the Free Software Foundation, 51 Franklin Street, Fifth Floor,
39d14dda KC	22	Boston, MA 02110-1301, USA. */
70e5e841 CF	23
	24	#define DBX_DEBUGGING_INFO 1
	25	#define SDB_DEBUGGING_INFO 1
	26	#undef PREFERRED_DEBUGGING_TYPE
	27	#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
	28
d38bc601 BF	29	#ifdef HAVE_GAS_PE_SECREL32_RELOC
	30	#define DWARF2_DEBUGGING_INFO 1
	31
	32	#undef DBX_REGISTER_NUMBER
	33	#define DBX_REGISTER_NUMBER(n) (write_symbols == DWARF2_DEBUG \
	34	? svr4_dbx_register_map[n] \
	35	: dbx_register_map[n])
	36
	37	/* Use section relative relocations for debugging offsets. Unlike
	38	other targets that fake this by putting the section VMA at 0, PE
	39	won't allow it. */
	40	#define ASM_OUTPUT_DWARF_OFFSET(FILE, SIZE, LABEL) \
	41	do { \
	42	if (SIZE != 4) \
	43	abort (); \
	44	\
	45	fputs ("\t.secrel32\t", FILE); \
	46	assemble_name (FILE, LABEL); \
	47	} while (0)
	48	#endif
	49
70e5e841 CF	50	#define TARGET_EXECUTABLE_SUFFIX ".exe"
	51
	52	#include <stdio.h>
	53
70e5e841 CF	54	#define MAYBE_UWIN_CPP_BUILTINS() /* Nothing. */
70e5e841 CF	55
70e5e841 CF	56	#define TARGET_OS_CPP_BUILTINS() \
	57	do \
	58	{ \
	59	builtin_define ("_X86_=1"); \
	60	builtin_assert ("system=winnt"); \
	61	builtin_define ("__stdcall=__attribute__((__stdcall__))"); \
	62	builtin_define ("__fastcall=__attribute__((__fastcall__))"); \
	63	builtin_define ("__cdecl=__attribute__((__cdecl__))"); \
70e5e841 CF	64	if (!flag_iso) \
	65	{ \
	66	builtin_define ("_stdcall=__attribute__((__stdcall__))"); \
	67	builtin_define ("_fastcall=__attribute__((__fastcall__))"); \
	68	builtin_define ("_cdecl=__attribute__((__cdecl__))"); \
	69	} \
535306d0 DS	70	/* Even though linkonce works with static libs, this is needed \
	71	to compare typeinfo symbols across dll boundaries. */ \
	72	builtin_define ("__GXX_MERGED_TYPEINFO_NAMES=0"); \
70e5e841 CF	73	MAYBE_UWIN_CPP_BUILTINS (); \
	74	EXTRA_OS_CPP_BUILTINS (); \
	75	} \
	76	while (0)
	77
	78	/* Get tree.c to declare a target-specific specialization of
	79	merge_decl_attributes. */
b2ca3702	80	#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1
70e5e841 CF	81
	82	/* This macro defines names of additional specifications to put in the specs
	83	that can be used in various specifications like CC1_SPEC. Its definition
	84	is an initializer with a subgrouping for each command option.
	85
	86	Each subgrouping contains a string constant, that defines the
e20285ad	87	specification name, and a string constant that used by the GCC driver
70e5e841 CF	88	program.
	89
	90	Do not define this macro if it does not need to do anything. */
	91
	92	#undef SUBTARGET_EXTRA_SPECS
9c808aad	93	#define SUBTARGET_EXTRA_SPECS \
70e5e841 CF	94	{ "mingw_include_path", DEFAULT_TARGET_MACHINE }
	95
	96	#undef MATH_LIBRARY
	97	#define MATH_LIBRARY ""
	98
	99	#define SIZE_TYPE "unsigned int"
	100	#define PTRDIFF_TYPE "int"
	101	#define WCHAR_TYPE_SIZE 16
	102	#define WCHAR_TYPE "short unsigned int"
	103
	104	\f
	105	/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
	106	#define HANDLE_PRAGMA_PACK_PUSH_POP 1
	107
	108	union tree_node;
	109	#define TREE union tree_node *
	110	\f
d6b5193b RS	111	#define drectve_section() \
	112	(fprintf (asm_out_file, "\t.section .drectve\n"), \
	113	in_section = NULL)
70e5e841	114
7f27395d DS	115	/* Older versions of gas don't handle 'r' as data.
	116	Explicitly set data flag with 'd'. */
	117	#define READONLY_DATA_SECTION_ASM_OP "\t.section .rdata,\"dr\""
	118
70e5e841 CF	119	/* Don't allow flag_pic to propagate since gas may produce invalid code
	120	otherwise. */
	121
	122	#undef SUBTARGET_OVERRIDE_OPTIONS
	123	#define SUBTARGET_OVERRIDE_OPTIONS \
	124	do { \
	125	if (flag_pic) \
	126	{ \
d4ee4d25	127	warning (0, "-f%s ignored for target (all code is position independent)",\
70e5e841 CF	128	(flag_pic > 1) ? "PIC" : "pic"); \
	129	flag_pic = 0; \
	130	} \
	131	} while (0) \
	132
	133	/* Define this macro if references to a symbol must be treated
	134	differently depending on something about the variable or
	135	function named by the symbol (such as what section it is in).
	136
9c808aad	137	On i386 running Windows NT, modify the assembler name with a suffix
70e5e841	138	consisting of an atsign (@) followed by string of digits that represents
9c808aad	139	the number of bytes of arguments passed to the function, if it has the
70e5e841 CF	140	attribute STDCALL.
70e5e841 CF	141
9c808aad AJ	142	In addition, we must mark dll symbols specially. Definitions of
9c808aad AJ	143	dllexport'd objects install some info in the .drectve section.
70e5e841	144	References to dllimport'd objects are fetched indirectly via
9c808aad	145	_imp__. If both are declared, dllexport overrides. This is also
70e5e841 CF	146	needed to implement one-only vtables: they go into their own
	147	section and we need to set DECL_SECTION_NAME so we do that here.
	148	Note that we can be called twice on the same decl. */
	149
f18faab7 DS	150	#undef SUBTARGET_ENCODE_SECTION_INFO
f18faab7 DS	151	#define SUBTARGET_ENCODE_SECTION_INFO i386_pe_encode_section_info
70e5e841 CF	152	#undef TARGET_STRIP_NAME_ENCODING
	153	#define TARGET_STRIP_NAME_ENCODING i386_pe_strip_name_encoding_full
	154	\f
	155	/* Output a reference to a label. */
	156	#undef ASM_OUTPUT_LABELREF
	157	#define ASM_OUTPUT_LABELREF i386_pe_output_labelref
	158
f18faab7 DS	159	#undef COMMON_ASM_OP
	160	#define COMMON_ASM_OP "\t.comm\t"
	161
70e5e841 CF	162	/* Output a common block. */
	163	#undef ASM_OUTPUT_COMMON
	164	#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
	165	do { \
	166	if (i386_pe_dllexport_name_p (NAME)) \
	167	i386_pe_record_exported_symbol (NAME, 1); \
	168	if (! i386_pe_dllimport_name_p (NAME)) \
	169	{ \
9c808aad	170	fprintf ((STREAM), "\t.comm\t"); \
70e5e841 CF	171	assemble_name ((STREAM), (NAME)); \
70e5e841 CF	172	fprintf ((STREAM), ", %d\t%s %d\n", \
74eda121	173	(int)(ROUNDED), ASM_COMMENT_START, (int)(SIZE)); \
70e5e841 CF	174	} \
	175	} while (0)
	176
	177	/* Output the label for an initialized variable. */
	178	#undef ASM_DECLARE_OBJECT_NAME
9c808aad	179	#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \
70e5e841 CF	180	do { \
	181	if (i386_pe_dllexport_name_p (NAME)) \
	182	i386_pe_record_exported_symbol (NAME, 1); \
	183	ASM_OUTPUT_LABEL ((STREAM), (NAME)); \
	184	} while (0)
	185
	186	\f
	187	/* Emit code to check the stack when allocating more that 4000
	188	bytes in one go. */
	189
	190	#define CHECK_STACK_LIMIT 4000
	191
	192	/* By default, target has a 80387, uses IEEE compatible arithmetic,
	193	returns float values in the 387 and needs stack probes.
43f3a59d	194	We also align doubles to 64-bits for MSVC default compatibility. */
70e5e841 CF	195
	196	#undef TARGET_SUBTARGET_DEFAULT
	197	#define TARGET_SUBTARGET_DEFAULT \
	198	(MASK_80387 \| MASK_IEEE_FP \| MASK_FLOAT_RETURNS \| MASK_STACK_PROBE \
	199	\| MASK_ALIGN_DOUBLE)
	200
	201	/* This is how to output an assembler line
	202	that says to advance the location counter
	203	to a multiple of 2*LOG bytes. /
	204
	205	#undef ASM_OUTPUT_ALIGN
	206	#define ASM_OUTPUT_ALIGN(FILE,LOG) \
	207	if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
	208
15072eb1 ZW	209	/* Windows uses explicit import from shared libraries. */
15072eb1 ZW	210	#define MULTIPLE_SYMBOL_SPACES 1
70e5e841	211
9c808aad	212	extern void i386_pe_unique_section (TREE, int);
70e5e841	213	#define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_section
ab5c8549	214	#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
70e5e841 CF	215
	216	#define SUPPORTS_ONE_ONLY 1
	217
	218	/* Switch into a generic section. */
	219	#define TARGET_ASM_NAMED_SECTION i386_pe_asm_named_section
	220
	221	/* Select attributes for named sections. */
	222	#define TARGET_SECTION_TYPE_FLAGS i386_pe_section_type_flags
	223
	224	/* Write the extra assembler code needed to declare a function
	225	properly. If we are generating SDB debugging information, this
	226	will happen automatically, so we only need to handle other cases. */
	227	#undef ASM_DECLARE_FUNCTION_NAME
	228	#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
	229	do \
	230	{ \
	231	if (i386_pe_dllexport_name_p (NAME)) \
	232	i386_pe_record_exported_symbol (NAME, 0); \
	233	if (write_symbols != SDB_DEBUG) \
	234	i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
	235	ASM_OUTPUT_LABEL (FILE, NAME); \
	236	} \
	237	while (0)
	238
	239	/* Add an external function to the list of functions to be declared at
	240	the end of the file. */
	241	#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
	242	do \
	243	{ \
	244	if (TREE_CODE (DECL) == FUNCTION_DECL) \
3ce9c824	245	i386_pe_record_external_function ((DECL), (NAME)); \
70e5e841 CF	246	} \
	247	while (0)
	248
	249	/* Declare the type properly for any external libcall. */
	250	#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
	251	i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
	252
	253	/* This says out to put a global symbol in the BSS section. */
	254	#undef ASM_OUTPUT_ALIGNED_BSS
	255	#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
	256	asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
	257
	258	/* Output function declarations at the end of the file. */
a5fe455b ZW	259	#undef TARGET_ASM_FILE_END
a5fe455b ZW	260	#define TARGET_ASM_FILE_END i386_pe_file_end
70e5e841 CF	261
	262	#undef ASM_COMMENT_START
	263	#define ASM_COMMENT_START " #"
	264
	265	/* DWARF2 Unwinding doesn't work with exception handling yet. To make
	266	it work, we need to build a libgcc_s.dll, and dcrt0.o should be
	267	changed to call __register_frame_info/__deregister_frame_info. */
	268	#define DWARF2_UNWIND_INFO 0
	269
	270	/* Don't assume anything about the header files. */
	271	#define NO_IMPLICIT_EXTERN_C
	272
	273	#undef PROFILE_HOOK
	274	#define PROFILE_HOOK(LABEL) \
	275	if (MAIN_NAME_P (DECL_NAME (current_function_decl))) \
	276	{ \
f84d109f	277	emit_call_insn (gen_rtx_CALL (VOIDmode, \
70e5e841 CF	278	gen_rtx_MEM (FUNCTION_MODE, \
	279	gen_rtx_SYMBOL_REF (Pmode, "_monstartup")), \
	280	const0_rtx)); \
	281	}
	282
	283	/* Java Native Interface (JNI) methods on Win32 are invoked using the
	284	stdcall calling convention. */
	285	#undef MODIFY_JNI_METHOD_CALL
	286	#define MODIFY_JNI_METHOD_CALL(MDECL) \
	287	build_type_attribute_variant ((MDECL), \
	288	build_tree_list (get_identifier ("stdcall"), \
	289	NULL))
	290
	291	/* External function declarations. */
	292
3ce9c824	293	extern void i386_pe_record_external_function (tree, const char *);
9c808aad AJ	294	extern void i386_pe_declare_function_type (FILE , const char , int);
	295	extern void i386_pe_record_exported_symbol (const char *, int);
	296	extern void i386_pe_file_end (void);
	297	extern int i386_pe_dllexport_name_p (const char *);
	298	extern int i386_pe_dllimport_name_p (const char *);
70e5e841 CF	299
	300	/* For Win32 ABI compatibility */
	301	#undef DEFAULT_PCC_STRUCT_RETURN
	302	#define DEFAULT_PCC_STRUCT_RETURN 0
	303
	304	/* MSVC returns aggregate types of up to 8 bytes via registers.
	305	See i386.c:ix86_return_in_memory. */
	306	#undef MS_AGGREGATE_RETURN
	307	#define MS_AGGREGATE_RETURN 1
	308
	309	/* No data type wants to be aligned rounder than this. */
	310	#undef BIGGEST_ALIGNMENT
	311	#define BIGGEST_ALIGNMENT 128
	312
	313	/* Native complier aligns internal doubles in structures on dword boundaries. */
	314	#undef BIGGEST_FIELD_ALIGNMENT
	315	#define BIGGEST_FIELD_ALIGNMENT 64
	316
	317	/* A bit-field declared as `int' forces `int' alignment for the struct. */
	318	#undef PCC_BITFIELD_TYPE_MATTERS
	319	#define PCC_BITFIELD_TYPE_MATTERS 1
	320	#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
	321
	322	/* Enable alias attribute support. */
	323	#ifndef SET_ASM_OP
	324	#define SET_ASM_OP "\t.set\t"
	325	#endif
1e8a5248 DS	326	/* This implements the `alias' attribute, keeping any stdcall or
	327	fastcall decoration. */
	328	#undef ASM_OUTPUT_DEF_FROM_DECLS
	329	#define ASM_OUTPUT_DEF_FROM_DECLS(STREAM, DECL, TARGET) \
	330	do \
	331	{ \
	332	const char *alias; \
	333	rtx rtlname = XEXP (DECL_RTL (DECL), 0); \
	334	if (GET_CODE (rtlname) == SYMBOL_REF) \
	335	alias = XSTR (rtlname, 0); \
	336	else \
	337	abort (); \
034f2316 DS	338	if (TREE_CODE (DECL) == FUNCTION_DECL) \
	339	i386_pe_declare_function_type (STREAM, alias, \
	340	TREE_PUBLIC (DECL)); \
1e8a5248 DS	341	ASM_OUTPUT_DEF (STREAM, alias, IDENTIFIER_POINTER (TARGET)); \
1e8a5248 DS	342	} while (0)
70e5e841	343
c37780f5 AL	344	/* GNU as supports weak symbols on PECOFF. */
	345	#ifdef HAVE_GAS_WEAK
	346	#define ASM_WEAKEN_LABEL(FILE, NAME) \
	347	do \
	348	{ \
	349	fputs ("\t.weak\t", (FILE)); \
	350	assemble_name ((FILE), (NAME)); \
	351	fputc ('\n', (FILE)); \
	352	} \
	353	while (0)
	354	#endif /* HAVE_GAS_WEAK */
	355
e50e6b88 DS	356	/* FIXME: SUPPORTS_WEAK && TARGET_HAVE_NAMED_SECTIONS is true,
	357	but for .jcr section to work we also need crtbegin and crtend
	358	objects. */
	359	#define TARGET_USE_JCR_SECTION 0
	360
4a77e08c DS	361	/* Decide whether it is safe to use a local alias for a virtual function
	362	when constructing thunks. */
	363	#undef TARGET_USE_LOCAL_THUNK_ALIAS_P
	364	#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) (!DECL_ONE_ONLY (DECL))
	365
a20f6f00 DS	366	#define SUBTARGET_ATTRIBUTE_TABLE \
	367	/* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
	368	{ "selectany", 0, 0, true, false, false, ix86_handle_selectany_attribute }
	369
d68c2f42 DS	370	/* mcount() does not need a counter variable. */
	371	#undef NO_PROFILE_COUNTERS
	372	#define NO_PROFILE_COUNTERS 1
	373
43d9ad1d DS	374	#define TARGET_VALID_DLLIMPORT_ATTRIBUTE_P i386_pe_valid_dllimport_attribute_p
	375	#define TARGET_CXX_ADJUST_CLASS_AT_DEFINITION i386_pe_adjust_class_at_definition
	376
70e5e841 CF	377	#undef TREE
	378
	379	#ifndef BUFSIZ
	380	# undef FILE
	381	#endif