mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-22 19:49:34 +08:00
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* -----------------------------------------------------------------------
|
|
ffi-mips.h - Copyright (c) 1996 Cygnus Support
|
|
|
|
MIPS FFI Definitions
|
|
|
|
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 CYGNUS SUPPORT 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 FFI_MIPS_H
|
|
|
|
#include <ffi.h>
|
|
|
|
#if !defined(_MIPS_SIM)
|
|
-- something is very wrong --
|
|
#else
|
|
# if _MIPS_SIM==_ABIN32 && defined(_ABIN32)
|
|
# define FFI_MIPS_N32
|
|
# else
|
|
# if defined(__GNUC__)
|
|
# define FFI_MIPS_O32
|
|
# else
|
|
# if _MIPS_SIM==_ABIO32
|
|
# define FFI_MIPS_O32
|
|
# else
|
|
-- this is an unsupported platform --
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#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
|
|
|
|
#if defined(FFI_MIPS_O32)
|
|
|
|
#define FFI_DEFAULT_ABI FFI_O32
|
|
|
|
/* O32 stack frames have 32bit integer args */
|
|
#define SLOT_TYPE_UNSIGNED UINT32
|
|
#define SLOT_TYPE_SIGNED SINT32
|
|
#define SIZEOF_ARG 4
|
|
|
|
#define REG_L lw
|
|
#define REG_S sw
|
|
#define SUBU subu
|
|
#define ADDU addu
|
|
#define SRL srl
|
|
#define LI li
|
|
|
|
#else
|
|
|
|
#define FFI_DEFAULT_ABI FFI_N32
|
|
|
|
/* N32 and N64 frames have 64bit integer args */
|
|
#define SLOT_TYPE_UNSIGNED UINT64
|
|
#define SLOT_TYPE_SIGNED SINT64
|
|
#define SIZEOF_ARG 8
|
|
|
|
#define REG_L ld
|
|
#define REG_S sd
|
|
#define SUBU dsubu
|
|
#define ADDU daddu
|
|
#define SRL dsrl
|
|
#define LI dli
|
|
|
|
#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
|
|
|
|
#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
|
|
|
|
#endif
|
|
|
|
#endif
|