[gcc.git] / gcc / config / i386 / cygwin.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
   Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

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

#define TARGET_VERSION fprintf (stderr, " (x86 Cygwin)"); 
#define TARGET_EXECUTABLE_SUFFIX ".exe"

#include <stdio.h>
#include "i386/i386.h"
#include "i386/unix.h"
#include "i386/bsd.h"
#include "i386/gas.h"
#include "dbxcoff.h"

/* Masks for subtarget switches used by other files.  */
#define MASK_NOP_FUN_DLLIMPORT 0x08000000 /* Ignore dllimport for functions */

/* Used in winnt.c.  */
#define TARGET_NOP_FUN_DLLIMPORT (target_flags & MASK_NOP_FUN_DLLIMPORT)

#undef  SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{ "cygwin",		  0, N_("Use the Cygwin interface") },	\
{ "no-cygwin",		  0, N_("Use the Mingw32 interface") },	\
{ "windows",		  0, N_("Create GUI application") },	\
{ "no-win32",		  0, N_("Don't set Windows defines") },	\
{ "win32",		  0, N_("Set Windows defines") },	\
{ "console",		  0, N_("Create console application") },\
{ "dll",		  0, N_("Generate code for a DLL") },	\
{ "nop-fun-dllimport",	  MASK_NOP_FUN_DLLIMPORT,		\
  N_("Ignore dllimport for functions") }, 			\
{ "no-nop-fun-dllimport", -MASK_NOP_FUN_DLLIMPORT, "" },	\
{ "threads",		  0, N_("Use Mingw-specific thread support") },

#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 ("__cdecl=__attribute__((__cdecl__))");		\
	builtin_define ("__declspec(x)=__attribute__((x))");		\
	if (!flag_iso)							\
	  {								\
	    builtin_define ("_stdcall=__attribute__((__stdcall__))");	\
	    builtin_define ("_cdecl=__attribute__((__cdecl__))");	\
	  }								\
	MAYBE_UWIN_CPP_BUILTINS ();					\
    }									\
  while (0)

#ifdef CROSS_COMPILE
#define CYGWIN_INCLUDES "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include}"
#define W32API_INC "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include/w32api}"
#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/"
#define CYGWIN_LIB CYGWIN_CROSS_DIR "/lib"
#define MINGW_LIBS "-L" CYGWIN_CROSS_DIR "/lib/mingw"
#define MINGW_INCLUDES "%{!nostdinc:-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++-3 "\
		       "-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++ "\
		       "-idirafter " CYGWIN_CROSS_DIR "/include/mingw}"
#else
#define CYGWIN_INCLUDES "%{!nostdinc:-isystem /usr/local/include "\
		           "-idirafter " CYGWIN_CROSS_DIR "/include "\
		           "-idirafter /usr/include}"
#define W32API_INC "%{!nostdinc:"\
		      "-idirafter " CYGWIN_CROSS_DIR "/include/w32api "\
		      "-idirafter /usr/include/w32api}"
#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/ -L/usr/lib/w32api/"
#define CYGWIN_LIB "/usr/lib"
#define MINGW_LIBS "-L/usr/local/lib/mingw -L/usr/lib/mingw"
#define MINGW_INCLUDES "%{!nostdinc:-isystem /usr/include/mingw/g++-3 "\
		       "-isystem /usr/include/mingw/g++ "\
		       "-isystem /usr/local/include/mingw "\
		       "-idirafter " CYGWIN_CROSS_DIR "/include/mingw "\
		       "-idirafter /usr/include/mingw}"
#endif

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

/* Support the __declspec keyword by turning them into attributes.
   We currently only support: dllimport and dllexport.
   Note that the current way we do this may result in a collision with
   predefined attributes later on.  This can be solved by using one attribute,
   say __declspec__, and passing args to it.  The problem with that approach
   is that args are not accumulated: each new appearance would clobber any
   existing args.  */

#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} \
  %{mno-win32:%{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
  %{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{mthreads:-D_MT} "\
    MINGW_INCLUDES "} \
  %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix "\
    CYGWIN_INCLUDES "}\
  %{mwin32|mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}}\
  %{!mno-win32:" W32API_INC "}\
"

#undef STARTFILE_SPEC
#define STARTFILE_SPEC "\
  %{shared|mdll: %{mno-cygwin:" MINGW_LIBS " dllcrt2%O%s}}\
  %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:" MINGW_LIBS " crt2%O%s}\
  %{pg:gcrt0%O%s}}}\
"

/* Normally, -lgcc is not needed since everything in it is in the DLL, but we
   want to allow things to be added to it when installing new versions of
   GCC without making a new CYGWIN.DLL, so we leave it.  Profiling is handled
   by calling the init function from the prologue.  */

#undef LIBGCC_SPEC
#define LIBGCC_SPEC "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc %{mno-cygwin:-lmoldname -lmsvcrt}"

/* 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 GNU CC 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 }

/* We have to dynamic link to get to the system DLLs.  All of libc, libm and
   the Unix stuff is in cygwin.dll.  The import library is called
   'libcygwin.a'.  For Windows applications, include more libraries, but
   always include kernel32.  We'd like to specific subsystem windows to
   ld, but that doesn't work just yet.  */

#undef LIB_SPEC
#define LIB_SPEC "\
  %{pg:-lgmon} \
  %{!mno-cygwin:-lcygwin} \
  %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
  %{mwindows:-lgdi32 -lcomdlg32} \
  -luser32 -lkernel32 -ladvapi32 -lshell32"

#define LINK_SPEC W32API_LIB "\
  %{mwindows:--subsystem windows} \
  %{mconsole:--subsystem console} \
  %{shared: %{mdll: %eshared and mdll are not compatible}} \
  %{shared: --shared} %{mdll:--dll} \
  %{static:-Bstatic} %{!static:-Bdynamic} \
  %{shared|mdll: -e \
    %{mno-cygwin:_DllMainCRTStartup@12} \
    %{!mno-cygwin:__cygwin_dll_entry@12}}\
  --dll-search-prefix=cyg"

#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
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_drectve

#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS					\
  DRECTVE_SECTION_FUNCTION					\
  SWITCH_TO_SECTION_FUNCTION

#define DRECTVE_SECTION_FUNCTION \
void									\
drectve_section ()							\
{									\
  if (in_section != in_drectve)						\
    {									\
      fprintf (asm_out_file, "%s\n", "\t.section .drectve\n");		\
      in_section = in_drectve;						\
    }									\
}
void drectve_section PARAMS ((void));

/* Switch to SECTION (an `enum in_section').

   ??? This facility should be provided by GCC proper.
   The problem is that we want to temporarily switch sections in
   ASM_DECLARE_OBJECT_NAME and then switch back to the original section
   afterwards.  */
#define SWITCH_TO_SECTION_FUNCTION 				\
void switch_to_section PARAMS ((enum in_section, tree));        \
void 								\
switch_to_section (section, decl) 				\
     enum in_section section; 					\
     tree decl; 						\
{ 								\
  switch (section) 						\
    { 								\
      case in_text: text_section (); break; 			\
      case in_data: data_section (); break; 			\
      case in_named: named_section (decl, NULL, 0); break; 	\
      case in_drectve: drectve_section (); break; 		\
      default: abort (); break; 				\
    } 								\
}

/* 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 ("-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 TARGET_ENCODE_SECTION_INFO
#define TARGET_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(STREAM, NAME)  		\
  fprintf (STREAM, "%s%s", USER_LABEL_PREFIX, 		\
	   i386_pe_strip_name_encoding (NAME))		\

/* 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",		\
	       (ROUNDED), ASM_COMMENT_START, (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,
   and returns float values in the 387 and needs stack probes */
#undef TARGET_SUBTARGET_DEFAULT

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

/* 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))

/* Define this macro if in some cases global symbols from one translation
   unit may not be bound to undefined symbols in another translation unit
   without user intervention.  For instance, under Microsoft Windows
   symbols must be explicitly imported from shared libraries (DLLs).  */
#define MULTIPLE_SYMBOL_SPACES

extern void i386_pe_unique_section PARAMS ((TREE, int));
#define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_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 (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 ASM_FILE_END
#define ASM_FILE_END(FILE) \
  i386_pe_asm_file_end (FILE)

#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

#define SUBTARGET_PROLOGUE						\
  if (current_function_profile						\
      && 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));							\
     }

/* External function declarations.  */

extern void i386_pe_record_external_function PARAMS ((const char *));
extern void i386_pe_declare_function_type PARAMS ((FILE *, const char *, int));
extern void i386_pe_record_exported_symbol PARAMS ((const char *, int));
extern void i386_pe_asm_file_end PARAMS ((FILE *));
extern int i386_pe_dllexport_name_p PARAMS ((const char *));
extern int i386_pe_dllimport_name_p PARAMS ((const char *));

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

/* 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 bitfield 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

/* Override GCC's relative pathname lookup (ie., relocatability) unless
   otherwise told by other subtargets.  */
#ifndef WIN32_NO_ABSOLUTE_INST_DIRS
#undef MD_STARTFILE_PREFIX
#define MD_STARTFILE_PREFIX     "/usr/lib/"

#undef STANDARD_STARTFILE_PREFIX
#define STANDARD_STARTFILE_PREFIX     "/usr/lib/mingw/"

#ifndef CROSS_COMPILE
#undef LOCAL_INCLUDE_DIR
#undef TOOL_INCLUDE_DIR
#undef SYSTEM_INCLUDE_DIR
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR 0
#endif /* not CROSS_COMPILE */
#endif /* not WIN32_NO_ABSOLUTE_INST_DIRS */

#undef TREE

#ifndef BUFSIZ
# undef FILE
#endif
Commit	Line	Data
3a2c1cd8	1	/* Operating system specific defines to be used when targeting GCC for
db009825	2	hosting on Windows32, using a Unix style C library and tools.
006946e4	3	Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
4592bdcb	4	Free Software Foundation, Inc.
3a2c1cd8 MM	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,
892a2d68	21	Boston, MA 02111-1307, USA. */
3a2c1cd8	22
23532de9 JT	23	#define DBX_DEBUGGING_INFO 1
23532de9 JT	24	#define SDB_DEBUGGING_INFO 1
73061e0f	25	#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
3a2c1cd8	26
39ed301b	27	#define TARGET_VERSION fprintf (stderr, " (x86 Cygwin)");
45936a85 DD	28	#define TARGET_EXECUTABLE_SUFFIX ".exe"
45936a85 DD	29
79f96374	30	#include <stdio.h>
39ed301b DB	31	#include "i386/i386.h"
	32	#include "i386/unix.h"
	33	#include "i386/bsd.h"
73061e0f JW	34	#include "i386/gas.h"
73061e0f JW	35	#include "dbxcoff.h"
3a2c1cd8	36
f3f1190d DS	37	/* Masks for subtarget switches used by other files. */
f3f1190d DS	38	#define MASK_NOP_FUN_DLLIMPORT 0x08000000 /* Ignore dllimport for functions */
040688bd	39
f3f1190d	40	/* Used in winnt.c. */
040688bd GN	41	#define TARGET_NOP_FUN_DLLIMPORT (target_flags & MASK_NOP_FUN_DLLIMPORT)
	42
	43	#undef SUBTARGET_SWITCHES
	44	#define SUBTARGET_SWITCHES \
f3f1190d DS	45	{ "cygwin", 0, N_("Use the Cygwin interface") }, \
	46	{ "no-cygwin", 0, N_("Use the Mingw32 interface") }, \
	47	{ "windows", 0, N_("Create GUI application") }, \
	48	{ "no-win32", 0, N_("Don't set Windows defines") }, \
	49	{ "win32", 0, N_("Set Windows defines") }, \
	50	{ "console", 0, N_("Create console application") },\
	51	{ "dll", 0, N_("Generate code for a DLL") }, \
	52	{ "nop-fun-dllimport", MASK_NOP_FUN_DLLIMPORT, \
	53	N_("Ignore dllimport for functions") }, \
	54	{ "no-nop-fun-dllimport", -MASK_NOP_FUN_DLLIMPORT, "" }, \
047142d3	55	{ "threads", 0, N_("Use Mingw-specific thread support") },
040688bd	56
f60ed6be NB	57	#define MAYBE_UWIN_CPP_BUILTINS() /* Nothing. */
	58	#define TARGET_OS_CPP_BUILTINS() \
	59	do \
	60	{ \
	61	builtin_define ("_X86_=1"); \
	62	builtin_assert ("system=winnt"); \
	63	builtin_define ("__stdcall=__attribute__((__stdcall__))"); \
	64	builtin_define ("__cdecl=__attribute__((__cdecl__))"); \
	65	builtin_define ("__declspec(x)=__attribute__((x))"); \
	66	if (!flag_iso) \
	67	{ \
	68	builtin_define ("_stdcall=__attribute__((__stdcall__))"); \
	69	builtin_define ("_cdecl=__attribute__((__cdecl__))"); \
	70	} \
	71	MAYBE_UWIN_CPP_BUILTINS (); \
	72	} \
	73	while (0)
3a2c1cd8	74
f6fc3552	75	#ifdef CROSS_COMPILE
0a977123 CF	76	#define CYGWIN_INCLUDES "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include}"
0a977123 CF	77	#define W32API_INC "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include/w32api}"
9a33d505	78	#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/"
4e190cf3 CF	79	#define CYGWIN_LIB CYGWIN_CROSS_DIR "/lib"
4e190cf3 CF	80	#define MINGW_LIBS "-L" CYGWIN_CROSS_DIR "/lib/mingw"
0a977123	81	#define MINGW_INCLUDES "%{!nostdinc:-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++-3 "\
936ee790	82	"-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++ "\
0a977123	83	"-idirafter " CYGWIN_CROSS_DIR "/include/mingw}"
f6fc3552	84	#else
e742b08a CF	85	#define CYGWIN_INCLUDES "%{!nostdinc:-isystem /usr/local/include "\
	86	"-idirafter " CYGWIN_CROSS_DIR "/include "\
	87	"-idirafter /usr/include}"
d0e06c90 CF	88	#define W32API_INC "%{!nostdinc:"\
	89	"-idirafter " CYGWIN_CROSS_DIR "/include/w32api "\
	90	"-idirafter /usr/include/w32api}"
	91	#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/ -L/usr/lib/w32api/"
4e190cf3 CF	92	#define CYGWIN_LIB "/usr/lib"
4e190cf3 CF	93	#define MINGW_LIBS "-L/usr/local/lib/mingw -L/usr/lib/mingw"
0a977123	94	#define MINGW_INCLUDES "%{!nostdinc:-isystem /usr/include/mingw/g++-3 "\
936ee790	95	"-isystem /usr/include/mingw/g++ "\
e742b08a CF	96	"-isystem /usr/local/include/mingw "\
e742b08a CF	97	"-idirafter " CYGWIN_CROSS_DIR "/include/mingw "\
0a977123	98	"-idirafter /usr/include/mingw}"
4e190cf3 CF	99	#endif
4e190cf3 CF	100
672a6f42 NB	101	/* Get tree.c to declare a target-specific specialization of
	102	merge_decl_attributes. */
	103	#define TARGET_DLLIMPORT_DECL_ATTRIBUTES
	104
9a33d505 CF	105	/* Support the __declspec keyword by turning them into attributes.
	106	We currently only support: dllimport and dllexport.
	107	Note that the current way we do this may result in a collision with
	108	predefined attributes later on. This can be solved by using one attribute,
	109	say __declspec__, and passing args to it. The problem with that approach
	110	is that args are not accumulated: each new appearance would clobber any
	111	existing args. */
4e190cf3 CF	112
4e190cf3 CF	113	#undef CPP_SPEC
1ba7b414	114	#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} \
9a33d505 CF	115	%{mno-win32:%{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
	116	%{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{mthreads:-D_MT} "\
	117	MINGW_INCLUDES "} \
0a977123	118	%{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix "\
9a33d505	119	CYGWIN_INCLUDES "}\
0a977123	120	%{mwin32\|mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}}\
9a33d505 CF	121	%{!mno-win32:" W32API_INC "}\
	122	"
	123
	124	#undef STARTFILE_SPEC
2baa5453	125	#define STARTFILE_SPEC "\
cf521102 CF	126	%{shared\|mdll: %{mno-cygwin:" MINGW_LIBS " dllcrt2%O%s}}\
cf521102 CF	127	%{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:" MINGW_LIBS " crt2%O%s}\
9a33d505	128	%{pg:gcrt0%O%s}}}\
936ee790	129	"
ffb6cec0	130
9a33d505 CF	131	/* Normally, -lgcc is not needed since everything in it is in the DLL, but we
	132	want to allow things to be added to it when installing new versions of
	133	GCC without making a new CYGWIN.DLL, so we leave it. Profiling is handled
892a2d68	134	by calling the init function from the prologue. */
9a33d505 CF	135
	136	#undef LIBGCC_SPEC
	137	#define LIBGCC_SPEC "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc %{mno-cygwin:-lmoldname -lmsvcrt}"
	138
ffb6cec0 SC	139	/* This macro defines names of additional specifications to put in the specs
	140	that can be used in various specifications like CC1_SPEC. Its definition
	141	is an initializer with a subgrouping for each command option.
	142
	143	Each subgrouping contains a string constant, that defines the
	144	specification name, and a string constant that used by the GNU CC driver
	145	program.
	146
	147	Do not define this macro if it does not need to do anything. */
	148
	149	#undef SUBTARGET_EXTRA_SPECS
	150	#define SUBTARGET_EXTRA_SPECS \
	151	{ "mingw_include_path", DEFAULT_TARGET_MACHINE }
956d6950	152
f5089633 RK	153	/* We have to dynamic link to get to the system DLLs. All of libc, libm and
	154	the Unix stuff is in cygwin.dll. The import library is called
	155	'libcygwin.a'. For Windows applications, include more libraries, but
	156	always include kernel32. We'd like to specific subsystem windows to
	157	ld, but that doesn't work just yet. */
3a2c1cd8 MM	158
3a2c1cd8 MM	159	#undef LIB_SPEC
2baa5453 CF	160	#define LIB_SPEC "\
2baa5453 CF	161	%{pg:-lgmon} \
03fb4780 CF	162	%{!mno-cygwin:-lcygwin} \
	163	%{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
	164	%{mwindows:-lgdi32 -lcomdlg32} \
	165	-luser32 -lkernel32 -ladvapi32 -lshell32"
3a2c1cd8	166
2baa5453 CF	167	#define LINK_SPEC W32API_LIB "\
2baa5453 CF	168	%{mwindows:--subsystem windows} \
03fb4780 CF	169	%{mconsole:--subsystem console} \
	170	%{shared: %{mdll: %eshared and mdll are not compatible}} \
	171	%{shared: --shared} %{mdll:--dll} \
	172	%{static:-Bstatic} %{!static:-Bdynamic} \
	173	%{shared\|mdll: -e \
	174	%{mno-cygwin:_DllMainCRTStartup@12} \
9a33d505 CF	175	%{!mno-cygwin:__cygwin_dll_entry@12}}\
9a33d505 CF	176	--dll-search-prefix=cyg"
26d1d6ad	177
03fb4780 CF	178	#undef MATH_LIBRARY
03fb4780 CF	179	#define MATH_LIBRARY ""
3a2c1cd8 MM	180
	181	#define SIZE_TYPE "unsigned int"
	182	#define PTRDIFF_TYPE "int"
3a2c1cd8 MM	183	#define WCHAR_TYPE_SIZE 16
3a2c1cd8 MM	184	#define WCHAR_TYPE "short unsigned int"
040688bd	185
27da1b4d	186	\f
c678a7f8 NC	187	/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
	188	#define HANDLE_PRAGMA_PACK_PUSH_POP 1
	189
03fb4780 CF	190	union tree_node;
03fb4780 CF	191	#define TREE union tree_node *
27da1b4d	192	\f
3a2c1cd8	193	#undef EXTRA_SECTIONS
2cc07db4	194	#define EXTRA_SECTIONS in_drectve
3a2c1cd8 MM	195
	196	#undef EXTRA_SECTION_FUNCTIONS
	197	#define EXTRA_SECTION_FUNCTIONS \
27da1b4d MK	198	DRECTVE_SECTION_FUNCTION \
27da1b4d MK	199	SWITCH_TO_SECTION_FUNCTION
3a2c1cd8	200
27da1b4d MK	201	#define DRECTVE_SECTION_FUNCTION \
	202	void \
	203	drectve_section () \
	204	{ \
	205	if (in_section != in_drectve) \
	206	{ \
	207	fprintf (asm_out_file, "%s\n", "\t.section .drectve\n"); \
	208	in_section = in_drectve; \
	209	} \
	210	}
79f96374	211	void drectve_section PARAMS ((void));
27da1b4d MK	212
	213	/* Switch to SECTION (an `enum in_section').
	214
	215	??? This facility should be provided by GCC proper.
	216	The problem is that we want to temporarily switch sections in
	217	ASM_DECLARE_OBJECT_NAME and then switch back to the original section
	218	afterwards. */
	219	#define SWITCH_TO_SECTION_FUNCTION \
79f96374	220	void switch_to_section PARAMS ((enum in_section, tree)); \
27da1b4d MK	221	void \
	222	switch_to_section (section, decl) \
	223	enum in_section section; \
	224	tree decl; \
	225	{ \
	226	switch (section) \
	227	{ \
	228	case in_text: text_section (); break; \
	229	case in_data: data_section (); break; \
	230	case in_named: named_section (decl, NULL, 0); break; \
27da1b4d MK	231	case in_drectve: drectve_section (); break; \
	232	default: abort (); break; \
	233	} \
	234	}
	235
2b9f972f	236	/* Don't allow flag_pic to propagate since gas may produce invalid code
892a2d68	237	otherwise. */
2b9f972f MK	238
	239	#undef SUBTARGET_OVERRIDE_OPTIONS
	240	#define SUBTARGET_OVERRIDE_OPTIONS \
	241	do { \
	242	if (flag_pic) \
	243	{ \
	244	warning ("-f%s ignored for target (all code is position independent)",\
	245	(flag_pic > 1) ? "PIC" : "pic"); \
	246	flag_pic = 0; \
	247	} \
	248	} while (0) \
	249
3a2c1cd8 MM	250	/* Define this macro if references to a symbol must be treated
	251	differently depending on something about the variable or
	252	function named by the symbol (such as what section it is in).
	253
3a2c1cd8 MM	254	On i386 running Windows NT, modify the assembler name with a suffix
	255	consisting of an atsign (@) followed by string of digits that represents
	256	the number of bytes of arguments passed to the function, if it has the
27da1b4d MK	257	attribute STDCALL.
	258
	259	In addition, we must mark dll symbols specially. Definitions of
	260	dllexport'd objects install some info in the .drectve section.
	261	References to dllimport'd objects are fetched indirectly via
	262	_imp__. If both are declared, dllexport overrides. This is also
	263	needed to implement one-only vtables: they go into their own
	264	section and we need to set DECL_SECTION_NAME so we do that here.
	265	Note that we can be called twice on the same decl. */
	266
fb49053f RH	267	#undef TARGET_ENCODE_SECTION_INFO
fb49053f RH	268	#define TARGET_ENCODE_SECTION_INFO i386_pe_encode_section_info
772c5265 RH	269	#undef TARGET_STRIP_NAME_ENCODING
772c5265 RH	270	#define TARGET_STRIP_NAME_ENCODING i386_pe_strip_name_encoding_full
27da1b4d MK	271	\f
	272	/* Output a reference to a label. */
	273	#undef ASM_OUTPUT_LABELREF
	274	#define ASM_OUTPUT_LABELREF(STREAM, NAME) \
	275	fprintf (STREAM, "%s%s", USER_LABEL_PREFIX, \
772c5265	276	i386_pe_strip_name_encoding (NAME)) \
27da1b4d	277
27da1b4d MK	278	/* Output a common block. */
	279	#undef ASM_OUTPUT_COMMON
	280	#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
	281	do { \
	282	if (i386_pe_dllexport_name_p (NAME)) \
8e260ba4	283	i386_pe_record_exported_symbol (NAME, 1); \
27da1b4d MK	284	if (! i386_pe_dllimport_name_p (NAME)) \
	285	{ \
	286	fprintf ((STREAM), "\t.comm\t"); \
	287	assemble_name ((STREAM), (NAME)); \
	288	fprintf ((STREAM), ", %d\t%s %d\n", \
	289	(ROUNDED), ASM_COMMENT_START, (SIZE)); \
	290	} \
	291	} while (0)
	292
	293	/* Output the label for an initialized variable. */
	294	#undef ASM_DECLARE_OBJECT_NAME
	295	#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \
	296	do { \
	297	if (i386_pe_dllexport_name_p (NAME)) \
8e260ba4	298	i386_pe_record_exported_symbol (NAME, 1); \
27da1b4d MK	299	ASM_OUTPUT_LABEL ((STREAM), (NAME)); \
	300	} while (0)
	301
	302	\f
1e9b6647	303	/* Emit code to check the stack when allocating more that 4000
892a2d68	304	bytes in one go. */
3a2c1cd8	305
1e9b6647	306	#define CHECK_STACK_LIMIT 4000
3a2c1cd8 MM	307
	308	/* By default, target has a 80387, uses IEEE compatible arithmetic,
	309	and returns float values in the 387 and needs stack probes */
25f94bb5	310	#undef TARGET_SUBTARGET_DEFAULT
3a2c1cd8	311
25f94bb5	312	#define TARGET_SUBTARGET_DEFAULT \
3a2c1cd8 MM	313	(MASK_80387 \| MASK_IEEE_FP \| MASK_FLOAT_RETURNS \| MASK_STACK_PROBE)
3a2c1cd8 MM	314
d5967781 MM	315	/* This is how to output an assembler line
	316	that says to advance the location counter
	317	to a multiple of 2*LOG bytes. /
	318
	319	#undef ASM_OUTPUT_ALIGN
	320	#define ASM_OUTPUT_ALIGN(FILE,LOG) \
	321	if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
b64deb96	322
5b5686f5 JM	323	/* Define this macro if in some cases global symbols from one translation
	324	unit may not be bound to undefined symbols in another translation unit
	325	without user intervention. For instance, under Microsoft Windows
	326	symbols must be explicitly imported from shared libraries (DLLs). */
	327	#define MULTIPLE_SYMBOL_SPACES
	328
03fb4780	329	extern void i386_pe_unique_section PARAMS ((TREE, int));
ae46c4e0	330	#define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_section
b64deb96	331
ad4ff310	332	#define SUPPORTS_ONE_ONLY 1
b64deb96	333
7c262518 RH	334	/* Switch into a generic section. */
	335	#define TARGET_ASM_NAMED_SECTION i386_pe_asm_named_section
	336
	337	/* Select attributes for named sections. */
	338	#define TARGET_SECTION_TYPE_FLAGS i386_pe_section_type_flags
8f3189a4	339
672a233f ILT	340	/* Write the extra assembler code needed to declare a function
	341	properly. If we are generating SDB debugging information, this
	342	will happen automatically, so we only need to handle other cases. */
c8d9f965	343	#undef ASM_DECLARE_FUNCTION_NAME
672a233f ILT	344	#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
	345	do \
	346	{ \
c8d9f965	347	if (i386_pe_dllexport_name_p (NAME)) \
8e260ba4	348	i386_pe_record_exported_symbol (NAME, 0); \
672a233f ILT	349	if (write_symbols != SDB_DEBUG) \
	350	i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
	351	ASM_OUTPUT_LABEL (FILE, NAME); \
	352	} \
	353	while (0)
	354
	355	/* Add an external function to the list of functions to be declared at
	356	the end of the file. */
	357	#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
	358	do \
	359	{ \
	360	if (TREE_CODE (DECL) == FUNCTION_DECL) \
	361	i386_pe_record_external_function (NAME); \
	362	} \
	363	while (0)
	364
	365	/* Declare the type properly for any external libcall. */
	366	#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
	367	i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
	368
892a2d68	369	/* This says out to put a global symbol in the BSS section. */
0181177d JL	370	#undef ASM_OUTPUT_ALIGNED_BSS
	371	#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
	372	asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
	373
672a233f	374	/* Output function declarations at the end of the file. */
4cf12e7e	375	#undef ASM_FILE_END
672a233f ILT	376	#define ASM_FILE_END(FILE) \
	377	i386_pe_asm_file_end (FILE)
	378
8f3189a4 JW	379	#undef ASM_COMMENT_START
8f3189a4 JW	380	#define ASM_COMMENT_START " #"
da932f04	381
e5c4bd1b JM	382	/* DWARF2 Unwinding doesn't work with exception handling yet. To make
	383	it work, we need to build a libgcc_s.dll, and dcrt0.o should be
	384	changed to call __register_frame_info/__deregister_frame_info. */
	385	#define DWARF2_UNWIND_INFO 0
	386
892a2d68	387	/* Don't assume anything about the header files. */
05853640	388	#define NO_IMPLICIT_EXTERN_C
672a233f	389
84530511	390	#define SUBTARGET_PROLOGUE \
70f4f91c	391	if (current_function_profile \
5b47282c	392	&& MAIN_NAME_P (DECL_NAME (current_function_decl))) \
84530511	393	{ \
e075ae69	394	emit_call_insn (gen_rtx (CALL, VOIDmode, \
936ee790	395	gen_rtx_MEM (FUNCTION_MODE, \
e075ae69 RH	396	gen_rtx_SYMBOL_REF (Pmode, "_monstartup")), \
e075ae69 RH	397	const0_rtx)); \
84530511 SC	398	}
84530511 SC	399
672a233f ILT	400	/* External function declarations. */
672a233f ILT	401
79f96374 DB	402	extern void i386_pe_record_external_function PARAMS ((const char *));
	403	extern void i386_pe_declare_function_type PARAMS ((FILE , const char , int));
	404	extern void i386_pe_record_exported_symbol PARAMS ((const char *, int));
	405	extern void i386_pe_asm_file_end PARAMS ((FILE *));
	406	extern int i386_pe_dllexport_name_p PARAMS ((const char *));
	407	extern int i386_pe_dllimport_name_p PARAMS ((const char *));
a2cd38a9 MK	408
	409	/* For Win32 ABI compatibility */
	410	#undef DEFAULT_PCC_STRUCT_RETURN
	411	#define DEFAULT_PCC_STRUCT_RETURN 0
	412
3fafc2f6 MK	413	/* No data type wants to be aligned rounder than this. */
	414	#undef BIGGEST_ALIGNMENT
	415	#define BIGGEST_ALIGNMENT 128
	416
c976fa88 DS	417	/* Native complier aligns internal doubles in structures on dword boundaries. */
	418	#undef BIGGEST_FIELD_ALIGNMENT
	419	#define BIGGEST_FIELD_ALIGNMENT 64
	420
3fafc2f6	421	/* A bitfield declared as `int' forces `int' alignment for the struct. */
006946e4 JM	422	#undef PCC_BITFIELD_TYPE_MATTERS
006946e4 JM	423	#define PCC_BITFIELD_TYPE_MATTERS 1
03fb4780 CF	424	#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
03fb4780 CF	425
3fafc2f6	426
8c84eeed MK	427	/* Enable alias attribute support. */
8c84eeed MK	428	#ifndef SET_ASM_OP
71d48a01	429	#define SET_ASM_OP "\t.set\t"
8c84eeed MK	430	#endif
8c84eeed MK	431
0a977123 CF	432	/* Override GCC's relative pathname lookup (ie., relocatability) unless
	433	otherwise told by other subtargets. */
	434	#ifndef WIN32_NO_ABSOLUTE_INST_DIRS
abffe289 CF	435	#undef MD_STARTFILE_PREFIX
	436	#define MD_STARTFILE_PREFIX "/usr/lib/"
	437
03fb4780	438	#undef STANDARD_STARTFILE_PREFIX
abffe289	439	#define STANDARD_STARTFILE_PREFIX "/usr/lib/mingw/"
03fb4780	440
f6fc3552 CF	441	#ifndef CROSS_COMPILE
	442	#undef LOCAL_INCLUDE_DIR
	443	#undef TOOL_INCLUDE_DIR
	444	#undef SYSTEM_INCLUDE_DIR
	445	#undef STANDARD_INCLUDE_DIR
	446	#define STANDARD_INCLUDE_DIR 0
0a977123 CF	447	#endif /* not CROSS_COMPILE */
0a977123 CF	448	#endif /* not WIN32_NO_ABSOLUTE_INST_DIRS */
f6fc3552	449
03fb4780 CF	450	#undef TREE
	451
	452	#ifndef BUFSIZ
	453	# undef FILE
	454	#endif