mirror of
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248 lines
6.4 KiB
C
248 lines
6.4 KiB
C
/* -----------------------------------------------------------------*-C-*-
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ffitarget.h - Copyright (c) 2012 Anthony Green
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Copyright (c) 1996-2003 Red Hat, Inc.
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Target configuration macros for MIPS.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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``Software''), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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----------------------------------------------------------------------- */
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#ifndef LIBFFI_TARGET_H
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#define LIBFFI_TARGET_H
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#ifndef LIBFFI_H
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#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
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#endif
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#ifdef __linux__
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# include <asm/sgidefs.h>
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#elif defined(__rtems__)
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/*
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* Subprogram calling convention - copied from sgidefs.h
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*/
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#define _MIPS_SIM_ABI32 1
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#define _MIPS_SIM_NABI32 2
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#define _MIPS_SIM_ABI64 3
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#elif !defined(__OpenBSD__)
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# include <sgidefs.h>
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#endif
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# ifndef _ABIN32
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# define _ABIN32 _MIPS_SIM_NABI32
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# endif
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# ifndef _ABI64
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# define _ABI64 _MIPS_SIM_ABI64
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# endif
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# ifndef _ABIO32
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# define _ABIO32 _MIPS_SIM_ABI32
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# endif
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#if !defined(_MIPS_SIM)
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# error -- something is very wrong --
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#else
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# if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64))
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# define FFI_MIPS_N32
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# else
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# if (_MIPS_SIM==_ABIO32 && defined(_ABIO32))
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# define FFI_MIPS_O32
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# else
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# error -- this is an unsupported platform --
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# endif
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# endif
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#endif
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#ifdef FFI_MIPS_O32
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/* O32 stack frames have 32bit integer args */
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# define FFI_SIZEOF_ARG 4
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#else
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/* N32 and N64 frames have 64bit integer args */
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# define FFI_SIZEOF_ARG 8
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# if _MIPS_SIM == _ABIN32
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# define FFI_SIZEOF_JAVA_RAW 4
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# endif
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#endif
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#define FFI_FLAG_BITS 2
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/* SGI's strange assembler requires that we multiply by 4 rather
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than shift left by FFI_FLAG_BITS */
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#define FFI_ARGS_D FFI_TYPE_DOUBLE
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#define FFI_ARGS_F FFI_TYPE_FLOAT
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#define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE
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#define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT
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#define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT
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#define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE
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/* Needed for N32 structure returns */
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#define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8
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#define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8
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#if 0
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/* The SGI assembler can't handle this.. */
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#define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT
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/* (and so on) */
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#else
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/* ...so we calculate these by hand! */
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#define FFI_TYPE_STRUCT_D 61
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#define FFI_TYPE_STRUCT_F 45
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#define FFI_TYPE_STRUCT_DD 253
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#define FFI_TYPE_STRUCT_FF 173
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#define FFI_TYPE_STRUCT_FD 237
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#define FFI_TYPE_STRUCT_DF 189
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#define FFI_TYPE_STRUCT_SMALL 93
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#define FFI_TYPE_STRUCT_SMALL2 109
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/* and for n32 soft float, add 16 * 2^4 */
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#define FFI_TYPE_STRUCT_D_SOFT 317
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#define FFI_TYPE_STRUCT_F_SOFT 301
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#define FFI_TYPE_STRUCT_DD_SOFT 509
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#define FFI_TYPE_STRUCT_FF_SOFT 429
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#define FFI_TYPE_STRUCT_FD_SOFT 493
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#define FFI_TYPE_STRUCT_DF_SOFT 445
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#define FFI_TYPE_STRUCT_SOFT 16
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#endif
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#ifdef LIBFFI_ASM
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#define v0 $2
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#define v1 $3
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#define a0 $4
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#define a1 $5
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#define a2 $6
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#define a3 $7
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#define a4 $8
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#define a5 $9
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#define a6 $10
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#define a7 $11
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#define t0 $8
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#define t1 $9
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#define t2 $10
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#define t3 $11
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#define t4 $12
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#define t5 $13
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#define t6 $14
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#define t7 $15
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#define t8 $24
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#define t9 $25
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#define ra $31
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#ifdef FFI_MIPS_O32
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# define REG_L lw
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# define REG_S sw
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# define SUBU subu
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# define ADDU addu
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# define SRL srl
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# define LI li
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#else /* !FFI_MIPS_O32 */
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# define REG_L ld
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# define REG_S sd
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# define SUBU dsubu
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# define ADDU daddu
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# define SRL dsrl
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# define LI dli
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# if (_MIPS_SIM==_ABI64)
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# define LA dla
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# define EH_FRAME_ALIGN 3
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# define FDE_ADDR_BYTES .8byte
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# else
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# define LA la
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# define EH_FRAME_ALIGN 2
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# define FDE_ADDR_BYTES .4byte
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# endif /* _MIPS_SIM==_ABI64 */
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#endif /* !FFI_MIPS_O32 */
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#else /* !LIBFFI_ASM */
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# ifdef __GNUC__
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# ifdef FFI_MIPS_O32
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/* O32 stack frames have 32bit integer args */
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typedef unsigned int ffi_arg __attribute__((__mode__(__SI__)));
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typedef signed int ffi_sarg __attribute__((__mode__(__SI__)));
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#else
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/* N32 and N64 frames have 64bit integer args */
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typedef unsigned int ffi_arg __attribute__((__mode__(__DI__)));
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typedef signed int ffi_sarg __attribute__((__mode__(__DI__)));
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# endif
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# else
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# ifdef FFI_MIPS_O32
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/* O32 stack frames have 32bit integer args */
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typedef __uint32_t ffi_arg;
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typedef __int32_t ffi_sarg;
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# else
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/* N32 and N64 frames have 64bit integer args */
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typedef __uint64_t ffi_arg;
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typedef __int64_t ffi_sarg;
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# endif
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# endif /* __GNUC__ */
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typedef enum ffi_abi {
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FFI_FIRST_ABI = 0,
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FFI_O32,
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FFI_N32,
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FFI_N64,
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FFI_O32_SOFT_FLOAT,
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FFI_N32_SOFT_FLOAT,
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FFI_N64_SOFT_FLOAT,
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FFI_LAST_ABI,
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#ifdef FFI_MIPS_O32
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#ifdef __mips_soft_float
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FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT
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#else
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FFI_DEFAULT_ABI = FFI_O32
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#endif
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#else
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# if _MIPS_SIM==_ABI64
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# ifdef __mips_soft_float
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FFI_DEFAULT_ABI = FFI_N64_SOFT_FLOAT
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# else
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FFI_DEFAULT_ABI = FFI_N64
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# endif
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# else
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# ifdef __mips_soft_float
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FFI_DEFAULT_ABI = FFI_N32_SOFT_FLOAT
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# else
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FFI_DEFAULT_ABI = FFI_N32
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# endif
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# endif
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#endif
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} ffi_abi;
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#define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag
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#endif /* !LIBFFI_ASM */
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/* ---- Definitions for closures ----------------------------------------- */
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#if defined(FFI_MIPS_O32)
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#define FFI_CLOSURES 1
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#define FFI_TRAMPOLINE_SIZE 20
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#else
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/* N32/N64. */
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# define FFI_CLOSURES 1
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#if _MIPS_SIM==_ABI64
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#define FFI_TRAMPOLINE_SIZE 52
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#else
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#define FFI_TRAMPOLINE_SIZE 20
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#endif
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#endif /* FFI_MIPS_O32 */
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#define FFI_NATIVE_RAW_API 0
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#endif
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