libffi/src/mips/ffitarget.h - gcc - Git at Google

 /* -----------------------------------------------------------------*-C-*-
    ffitarget.h - Copyright (c) 2012  Anthony Green
                  Copyright (c) 1996-2003  Red Hat, Inc.
    Target configuration macros for MIPS.

    Permission is hereby granted, free of charge, to any person obtaining
    a copy of this software and associated documentation files (the
    ``Software''), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    DEALINGS IN THE SOFTWARE.

    ----------------------------------------------------------------------- */

 #ifndef LIBFFI_TARGET_H
 #define LIBFFI_TARGET_H

 #ifndef LIBFFI_H
 #error "Please do not include ffitarget.h directly into your source.  Use ffi.h instead."
 #endif

 #ifdef linux
 # include <asm/sgidefs.h>
 #elif defined(__rtems__)
 /*
  * Subprogram calling convention - copied from sgidefs.h
  */
 #define _MIPS_SIM_ABI32		1
 #define _MIPS_SIM_NABI32	2
 #define _MIPS_SIM_ABI64		3
 #elif !defined(__OpenBSD__)
 # include <sgidefs.h>
 #endif

 #  ifndef _ABIN32
 #    define _ABIN32 _MIPS_SIM_NABI32
 #  endif
 #  ifndef _ABI64
 #    define _ABI64 _MIPS_SIM_ABI64
 #  endif
 #  ifndef _ABIO32
 #    define _ABIO32 _MIPS_SIM_ABI32
 #  endif

 #if !defined(_MIPS_SIM)
 # error -- something is very wrong --
 #else
 #  if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64))
 #    define FFI_MIPS_N32
 #  else
 #    if (_MIPS_SIM==_ABIO32 && defined(_ABIO32))
 #      define FFI_MIPS_O32
 #    else
 #     error -- this is an unsupported platform --
 #    endif
 #  endif
 #endif

 #ifdef FFI_MIPS_O32
 /* O32 stack frames have 32bit integer args */
 #  define FFI_SIZEOF_ARG    4
 #else
 /* N32 and N64 frames have 64bit integer args */
 #  define FFI_SIZEOF_ARG    8
 #  if _MIPS_SIM == _ABIN32
 #    define FFI_SIZEOF_JAVA_RAW  4
 #  endif
 #endif

 #define FFI_FLAG_BITS 2

 /* SGI's strange assembler requires that we multiply by 4 rather
    than shift left by FFI_FLAG_BITS */

 #define FFI_ARGS_D   FFI_TYPE_DOUBLE
 #define FFI_ARGS_F   FFI_TYPE_FLOAT
 #define FFI_ARGS_DD  FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE
 #define FFI_ARGS_FF  FFI_TYPE_FLOAT * 4 +  FFI_TYPE_FLOAT
 #define FFI_ARGS_FD  FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT
 #define FFI_ARGS_DF  FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE

 /* Needed for N32 structure returns */
 #define FFI_TYPE_SMALLSTRUCT  FFI_TYPE_UINT8
 #define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8

 #if 0
 /* The SGI assembler can't handle this.. */
 #define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT
 /* (and so on) */
 #else
 /* ...so we calculate these by hand! */
 #define FFI_TYPE_STRUCT_D      61
 #define FFI_TYPE_STRUCT_F      45
 #define FFI_TYPE_STRUCT_DD     253
 #define FFI_TYPE_STRUCT_FF     173
 #define FFI_TYPE_STRUCT_FD     237
 #define FFI_TYPE_STRUCT_DF     189
 #define FFI_TYPE_STRUCT_SMALL  93
 #define FFI_TYPE_STRUCT_SMALL2 109

 /* and for n32 soft float, add 16 * 2^4 */
 #define FFI_TYPE_STRUCT_D_SOFT      317
 #define FFI_TYPE_STRUCT_F_SOFT      301
 #define FFI_TYPE_STRUCT_DD_SOFT     509
 #define FFI_TYPE_STRUCT_FF_SOFT     429
 #define FFI_TYPE_STRUCT_FD_SOFT     493
 #define FFI_TYPE_STRUCT_DF_SOFT     445
 #define FFI_TYPE_STRUCT_SOFT        16
 #endif

 #ifdef LIBFFI_ASM
 #define v0 $2
 #define v1 $3
 #define a0 $4
 #define a1 $5
 #define a2 $6
 #define a3 $7
 #define a4 $8
 #define a5 $9
 #define a6 $10
 #define a7 $11
 #define t0 $8
 #define t1 $9
 #define t2 $10
 #define t3 $11
 #define t4 $12
 #define t5 $13
 #define t6 $14
 #define t7 $15
 #define t8 $24
 #define t9 $25
 #define ra $31

 #ifdef FFI_MIPS_O32
 # define REG_L	lw
 # define REG_S	sw
 # define SUBU	subu
 # define ADDU	addu
 # define SRL	srl
 # define LI	li
 #else /* !FFI_MIPS_O32 */
 # define REG_L	ld
 # define REG_S	sd
 # define SUBU	dsubu
 # define ADDU	daddu
 # define SRL	dsrl
 # define LI 	dli
 # if (_MIPS_SIM==_ABI64)
 #  define LA dla
 #  define EH_FRAME_ALIGN 3
 #  define FDE_ADDR_BYTES .8byte
 # else
 #  define LA la
 #  define EH_FRAME_ALIGN 2
 #  define FDE_ADDR_BYTES .4byte
 # endif /* _MIPS_SIM==_ABI64 */
 #endif /* !FFI_MIPS_O32 */
 #else /* !LIBFFI_ASM */
 # ifdef __GNUC__
 #  ifdef FFI_MIPS_O32
 /* O32 stack frames have 32bit integer args */
 typedef unsigned int     ffi_arg __attribute__((__mode__(__SI__)));
 typedef signed   int     ffi_sarg __attribute__((__mode__(__SI__)));
 #else
 /* N32 and N64 frames have 64bit integer args */
 typedef unsigned int     ffi_arg __attribute__((__mode__(__DI__)));
 typedef signed   int     ffi_sarg __attribute__((__mode__(__DI__)));
 #  endif
 # else
 #  ifdef FFI_MIPS_O32
 /* O32 stack frames have 32bit integer args */
 typedef __uint32_t ffi_arg;
 typedef __int32_t ffi_sarg;
 #  else
 /* N32 and N64 frames have 64bit integer args */
 typedef __uint64_t ffi_arg;
 typedef __int64_t ffi_sarg;
 #  endif
 # endif /* __GNUC__ */

 typedef enum ffi_abi {
   FFI_FIRST_ABI = 0,
   FFI_O32,
   FFI_N32,
   FFI_N64,
   FFI_O32_SOFT_FLOAT,
   FFI_N32_SOFT_FLOAT,
   FFI_N64_SOFT_FLOAT,
   FFI_LAST_ABI,

 #ifdef FFI_MIPS_O32
 #ifdef __mips_soft_float
   FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT
 #else
   FFI_DEFAULT_ABI = FFI_O32
 #endif
 #else
 # if _MIPS_SIM==_ABI64
 #  ifdef __mips_soft_float
   FFI_DEFAULT_ABI = FFI_N64_SOFT_FLOAT
 #  else
   FFI_DEFAULT_ABI = FFI_N64
 #  endif
 # else
 #  ifdef __mips_soft_float
   FFI_DEFAULT_ABI = FFI_N32_SOFT_FLOAT
 #  else
   FFI_DEFAULT_ABI = FFI_N32
 #  endif
 # endif
 #endif
 } ffi_abi;

 #define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag
 #endif /* !LIBFFI_ASM */

 /* ---- Definitions for closures ----------------------------------------- */

 #if defined(FFI_MIPS_O32)
 #define FFI_CLOSURES 1
 #define FFI_TRAMPOLINE_SIZE 20
 #else
 /* N32/N64. */
 # define FFI_CLOSURES 1
 #if _MIPS_SIM==_ABI64
 #define FFI_TRAMPOLINE_SIZE 52
 #else
 #define FFI_TRAMPOLINE_SIZE 20
 #endif
 #endif /* FFI_MIPS_O32 */
 #define FFI_NATIVE_RAW_API 0

 #endif
	/* ------------------------------------------------------------------C--
	ffitarget.h - Copyright (c) 2012 Anthony Green
	Copyright (c) 1996-2003 Red Hat, Inc.
	Target configuration macros for MIPS.

	Permission is hereby granted, free of charge, to any person obtaining
	a copy of this software and associated documentation files (the
	``Software''), to deal in the Software without restriction, including
	without limitation the rights to use, copy, modify, merge, publish,
	distribute, sublicense, and/or sell copies of the Software, and to
	permit persons to whom the Software is furnished to do so, subject to
	the following conditions:

	The above copyright notice and this permission notice shall be included
	in all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	DEALINGS IN THE SOFTWARE.

	----------------------------------------------------------------------- */

	#ifndef LIBFFI_TARGET_H
	#define LIBFFI_TARGET_H

	#ifndef LIBFFI_H
	#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
	#endif

	#ifdef linux
	# include <asm/sgidefs.h>
	#elif defined(__rtems__)
	/*
	* Subprogram calling convention - copied from sgidefs.h
	*/
	#define _MIPS_SIM_ABI32 1
	#define _MIPS_SIM_NABI32 2
	#define _MIPS_SIM_ABI64 3
	#elif !defined(__OpenBSD__)
	# include <sgidefs.h>
	#endif

	# ifndef _ABIN32
	# define _ABIN32 _MIPS_SIM_NABI32
	# endif
	# ifndef _ABI64
	# define _ABI64 _MIPS_SIM_ABI64
	# endif
	# ifndef _ABIO32
	# define _ABIO32 _MIPS_SIM_ABI32
	# endif

	#if !defined(_MIPS_SIM)
	# error -- something is very wrong --
	#else
	# if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) \|\| (_MIPS_SIM==_ABI64 && defined(_ABI64))
	# define FFI_MIPS_N32
	# else
	# if (_MIPS_SIM==_ABIO32 && defined(_ABIO32))
	# define FFI_MIPS_O32
	# else
	# error -- this is an unsupported platform --
	# endif
	# endif
	#endif

	#ifdef FFI_MIPS_O32
	/* O32 stack frames have 32bit integer args */
	# define FFI_SIZEOF_ARG 4
	#else
	/* N32 and N64 frames have 64bit integer args */
	# define FFI_SIZEOF_ARG 8
	# if _MIPS_SIM == _ABIN32
	# define FFI_SIZEOF_JAVA_RAW 4
	# endif
	#endif

	#define FFI_FLAG_BITS 2

	/* SGI's strange assembler requires that we multiply by 4 rather
	than shift left by FFI_FLAG_BITS */

	#define FFI_ARGS_D FFI_TYPE_DOUBLE
	#define FFI_ARGS_F FFI_TYPE_FLOAT
	#define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE
	#define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT
	#define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT
	#define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE

	/* Needed for N32 structure returns */
	#define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8
	#define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8

	#if 0
	/* The SGI assembler can't handle this.. */
	#define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT
	/* (and so on) */
	#else
	/* ...so we calculate these by hand! */
	#define FFI_TYPE_STRUCT_D 61
	#define FFI_TYPE_STRUCT_F 45
	#define FFI_TYPE_STRUCT_DD 253
	#define FFI_TYPE_STRUCT_FF 173
	#define FFI_TYPE_STRUCT_FD 237
	#define FFI_TYPE_STRUCT_DF 189
	#define FFI_TYPE_STRUCT_SMALL 93
	#define FFI_TYPE_STRUCT_SMALL2 109

	/* and for n32 soft float, add 16 * 2^4 */
	#define FFI_TYPE_STRUCT_D_SOFT 317
	#define FFI_TYPE_STRUCT_F_SOFT 301
	#define FFI_TYPE_STRUCT_DD_SOFT 509
	#define FFI_TYPE_STRUCT_FF_SOFT 429
	#define FFI_TYPE_STRUCT_FD_SOFT 493
	#define FFI_TYPE_STRUCT_DF_SOFT 445
	#define FFI_TYPE_STRUCT_SOFT 16
	#endif

	#ifdef LIBFFI_ASM
	#define v0 $2
	#define v1 $3
	#define a0 $4
	#define a1 $5
	#define a2 $6
	#define a3 $7
	#define a4 $8
	#define a5 $9
	#define a6 $10
	#define a7 $11
	#define t0 $8
	#define t1 $9
	#define t2 $10
	#define t3 $11
	#define t4 $12
	#define t5 $13
	#define t6 $14
	#define t7 $15
	#define t8 $24
	#define t9 $25
	#define ra $31

	#ifdef FFI_MIPS_O32
	# define REG_L lw
	# define REG_S sw
	# define SUBU subu
	# define ADDU addu
	# define SRL srl
	# define LI li
	#else /* !FFI_MIPS_O32 */
	# define REG_L ld
	# define REG_S sd
	# define SUBU dsubu
	# define ADDU daddu
	# define SRL dsrl
	# define LI dli
	# if (_MIPS_SIM==_ABI64)
	# define LA dla
	# define EH_FRAME_ALIGN 3
	# define FDE_ADDR_BYTES .8byte
	# else
	# define LA la
	# define EH_FRAME_ALIGN 2
	# define FDE_ADDR_BYTES .4byte
	# endif /* _MIPS_SIM==_ABI64 */
	#endif /* !FFI_MIPS_O32 */
	#else /* !LIBFFI_ASM */
	# ifdef __GNUC__
	# ifdef FFI_MIPS_O32
	/* O32 stack frames have 32bit integer args */
	typedef unsigned int ffi_arg __attribute__((__mode__(__SI__)));
	typedef signed int ffi_sarg __attribute__((__mode__(__SI__)));
	#else
	/* N32 and N64 frames have 64bit integer args */
	typedef unsigned int ffi_arg __attribute__((__mode__(__DI__)));
	typedef signed int ffi_sarg __attribute__((__mode__(__DI__)));
	# endif
	# else
	# ifdef FFI_MIPS_O32
	/* O32 stack frames have 32bit integer args */
	typedef __uint32_t ffi_arg;
	typedef __int32_t ffi_sarg;
	# else
	/* N32 and N64 frames have 64bit integer args */
	typedef __uint64_t ffi_arg;
	typedef __int64_t ffi_sarg;
	# endif
	# endif /* __GNUC__ */

	typedef enum ffi_abi {
	FFI_FIRST_ABI = 0,
	FFI_O32,
	FFI_N32,
	FFI_N64,
	FFI_O32_SOFT_FLOAT,
	FFI_N32_SOFT_FLOAT,
	FFI_N64_SOFT_FLOAT,
	FFI_LAST_ABI,

	#ifdef FFI_MIPS_O32
	#ifdef __mips_soft_float
	FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT
	#else
	FFI_DEFAULT_ABI = FFI_O32
	#endif
	#else
	# if _MIPS_SIM==_ABI64
	# ifdef __mips_soft_float
	FFI_DEFAULT_ABI = FFI_N64_SOFT_FLOAT
	# else
	FFI_DEFAULT_ABI = FFI_N64
	# endif
	# else
	# ifdef __mips_soft_float
	FFI_DEFAULT_ABI = FFI_N32_SOFT_FLOAT
	# else
	FFI_DEFAULT_ABI = FFI_N32
	# endif
	# endif
	#endif
	} ffi_abi;

	#define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag
	#endif /* !LIBFFI_ASM */

	/* ---- Definitions for closures ----------------------------------------- */

	#if defined(FFI_MIPS_O32)
	#define FFI_CLOSURES 1
	#define FFI_TRAMPOLINE_SIZE 20
	#else
	/* N32/N64. */
	# define FFI_CLOSURES 1
	#if _MIPS_SIM==_ABI64
	#define FFI_TRAMPOLINE_SIZE 52
	#else
	#define FFI_TRAMPOLINE_SIZE 20
	#endif
	#endif /* FFI_MIPS_O32 */
	#define FFI_NATIVE_RAW_API 0

	#endif