[ctypes-commit] ctypes/source/libffi/src/m68k ffi.c,1.1.2.2,1.1.2.3 ffitarget.h,1.1.2.2,1.1.2.3 sysv.S,1.1.2.2,1.1.2.3

[Thomas H. <th...@us...>]

Update of /cvsroot/ctypes/ctypes/source/libffi/src/m68k
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv28311/src/m68k

Added Files:
      Tag: branch_1_0
	ffi.c ffitarget.h sysv.S 
Log Message:
Hm, somehow pcl-cvs managed to first add, then remove the files again ;-(


--- NEW FILE: sysv.S ---
/* -----------------------------------------------------------------------
   sysv.S
   
   m68k Foreign Function Interface 
   ----------------------------------------------------------------------- */

#define LIBFFI_ASM	
#include <fficonfig.h>
#include <ffi.h>

	.text

	.globl	ffi_call_SYSV
	.type	ffi_call_SYSV,@function

ffi_call_SYSV:
	link	%fp,#0
	move.l	%d2,-(%sp)

	| Make room for all of the new args.
	sub.l	16(%fp),%sp

	| Call ffi_prep_args
	move.l	12(%fp),-(%sp)
	pea	4(%sp)
	move.l	8(%fp),%a0
	jsr	(%a0)
	addq.l	#8,%sp	

	| Pass pointer to struct value, if any
	move.l	%a0,%a1

	| Call the function
	move.l	32(%fp),%a0
	jsr	(%a0)

	| Remove the space we pushed for the args
	add.l	16(%fp),%sp

	| Load the pointer to storage for the return value
	move.l	28(%fp),%a1

	| Load the return type code 
	move.l	20(%fp),%d2

	| If the return value pointer is NULL, assume no return value.
	tst.l	%a1
	jbeq	noretval

	btst	#0,%d2
	jbeq	retlongint
	move.l	%d0,(%a1)
	jbra	epilogue

retlongint:
	btst	#1,%d2
	jbeq	retfloat
	move.l	%d0,(%a1)
	move.l	%d1,4(%a1)
	jbra	epilogue

retfloat:
	btst	#2,%d2
	jbeq	retdouble
	fmove.s	%fp0,(%a1)
	jbra	epilogue

retdouble:
	btst	#3,%d2
	jbeq	retlongdouble
	fmove.d	%fp0,(%a1)
	jbra	epilogue

retlongdouble:
	btst	#4,%d2
	jbeq	retpointer
	fmove.x	%fp0,(%a1)
	jbra	epilogue

retpointer:
	btst	#5,%d2
	jbeq	retstruct
	move.l	%a0,(%a1)
	jbra	epilogue

retstruct:
	btst	#6,%d2
	jbeq	noretval
	move.l	24(%fp),%d2
	bfins	%d0,(%a1){#0,%d2}

noretval:
epilogue:
	move.l	(%sp)+,%d2
	unlk	%a6
	rts
	.size	ffi_call_SYSV,.-ffi_call_SYSV

--- NEW FILE: ffi.c ---
/* -----------------------------------------------------------------------
   ffi.c
   
   m68k Foreign Function Interface 
   ----------------------------------------------------------------------- */

#include <ffi.h>
#include <ffi_common.h>

#include <stdlib.h>

/* ffi_prep_args is called by the assembly routine once stack space has
   been allocated for the function's arguments.  */

static void *
ffi_prep_args (void *stack, extended_cif *ecif)
{
  unsigned int i;
  void **p_argv;
  char *argp;
  ffi_type **p_arg;
  void *struct_value_ptr;

  argp = stack;

  if (ecif->cif->rtype->type == FFI_TYPE_STRUCT
      && ecif->cif->rtype->size > 8)
    struct_value_ptr = ecif->rvalue;
  else
    struct_value_ptr = NULL;

  p_argv = ecif->avalue;

  for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
       i != 0;
       i--, p_arg++)
    {
      size_t z;

      /* Align if necessary.  */
      if (((*p_arg)->alignment - 1) & (unsigned) argp)
	argp = (char *) ALIGN (argp, (*p_arg)->alignment);

	  z = (*p_arg)->size;
	  if (z < sizeof (int))
	    {
	      switch ((*p_arg)->type)
		{
		case FFI_TYPE_SINT8:
		  *(signed int *) argp = (signed int) *(SINT8 *) *p_argv;
		  break;

		case FFI_TYPE_UINT8:
		  *(unsigned int *) argp = (unsigned int) *(UINT8 *) *p_argv;
		  break;

		case FFI_TYPE_SINT16:
		  *(signed int *) argp = (signed int) *(SINT16 *) *p_argv;
		  break;

		case FFI_TYPE_UINT16:
		  *(unsigned int *) argp = (unsigned int) *(UINT16 *) *p_argv;
		  break;

		case FFI_TYPE_STRUCT:
		  memcpy (argp + sizeof (int) - z, *p_argv, z);
		  break;

		default:
		  FFI_ASSERT (0);
		}
	      z = sizeof (int);
	    }
	  else
	    memcpy (argp, *p_argv, z);
	  p_argv++;
	  argp += z;
    }

  return struct_value_ptr;
}

#define CIF_FLAGS_INT		1
#define CIF_FLAGS_DINT		2
#define CIF_FLAGS_FLOAT		4
#define CIF_FLAGS_DOUBLE	8
#define CIF_FLAGS_LDOUBLE	16
#define CIF_FLAGS_POINTER	32
#define CIF_FLAGS_STRUCT	64

/* Perform machine dependent cif processing */
ffi_status
ffi_prep_cif_machdep (ffi_cif *cif)
{
  /* Set the return type flag */
  switch (cif->rtype->type)
    {
    case FFI_TYPE_VOID:
      cif->flags = 0;
      break;

    case FFI_TYPE_STRUCT:
      if (cif->rtype->size > 4 && cif->rtype->size <= 8)
	cif->flags = CIF_FLAGS_DINT;
      else if (cif->rtype->size <= 4)
	cif->flags = CIF_FLAGS_STRUCT;
      else
	cif->flags = 0;
      break;

    case FFI_TYPE_FLOAT:
      cif->flags = CIF_FLAGS_FLOAT;
      break;

    case FFI_TYPE_DOUBLE:
      cif->flags = CIF_FLAGS_DOUBLE;
      break;

    case FFI_TYPE_LONGDOUBLE:
      cif->flags = CIF_FLAGS_LDOUBLE;
      break;

    case FFI_TYPE_POINTER:
      cif->flags = CIF_FLAGS_POINTER;
      break;

    case FFI_TYPE_SINT64:
    case FFI_TYPE_UINT64:
      cif->flags = CIF_FLAGS_DINT;
      break;

    default:
      cif->flags = CIF_FLAGS_INT;
      break;
    }

  return FFI_OK;
}

extern void ffi_call_SYSV (void *(*) (void *, extended_cif *), 
			   extended_cif *, 
			   unsigned, unsigned, unsigned,
			   void *, void (*fn) ());

void
ffi_call (ffi_cif *cif, void (*fn) (), void *rvalue, void **avalue)
{
  extended_cif ecif;

  ecif.cif = cif;
  ecif.avalue = avalue;
  
  /* If the return value is a struct and we don't have a return value
     address then we need to make one.  */

  if (rvalue == NULL
      && cif->rtype->type == FFI_TYPE_STRUCT
      && cif->rtype->size > 8)
    ecif.rvalue = alloca (cif->rtype->size);
  else
    ecif.rvalue = rvalue;
    
  
  switch (cif->abi) 
    {
    case FFI_SYSV:
      ffi_call_SYSV (ffi_prep_args, &ecif, cif->bytes, 
		     cif->flags, cif->rtype->size * 8,
		     ecif.rvalue, fn);
      break;

    default:
      FFI_ASSERT (0);
      break;
    }
}

--- NEW FILE: ffitarget.h ---
/* -----------------------------------------------------------------*-C-*-
   ffitarget.h - Copyright (c) 1996-2003  Red Hat, Inc.
   Target configuration macros for Motorola 68K.

   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 SOLUTIONS 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_ASM
typedef unsigned long          ffi_arg;
typedef signed long            ffi_sarg;

typedef enum ffi_abi {
  FFI_FIRST_ABI = 0,
  FFI_SYSV,
  FFI_DEFAULT_ABI = FFI_SYSV,
  FFI_LAST_ABI = FFI_DEFAULT_ABI + 1
} ffi_abi;
#endif

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

#define FFI_CLOSURES 0
#define FFI_NATIVE_RAW_API 0

#endif