Fresh start

1 files changed, 232 insertions, 0 deletions

diff --git a/jni/ruby/ext/fiddle/libffi-3.2.1/src/m32r/ffi.c b/jni/ruby/ext/fiddle/libffi-3.2.1/src/m32r/ffi.c
new file mode 100644
index 0000000..3000063
--- /dev/null
+++ b/jni/ruby/ext/fiddle/libffi-3.2.1/src/m32r/ffi.c
@@ -0,0 +1,232 @@
+/* -----------------------------------------------------------------------
+   ffi.c - Copyright (c) 2004  Renesas Technology
+           Copyright (c) 2008  Red Hat, Inc.
+   
+   M32R Foreign Function Interface 
+
+   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 RENESAS TECHNOLOGY 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.
+   ----------------------------------------------------------------------- */
+
+#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.  */
+
+void ffi_prep_args(char *stack, extended_cif *ecif)
+{
+  unsigned int i;
+  int tmp;
+  unsigned int avn;
+  void **p_argv;
+  char *argp;
+  ffi_type **p_arg;
+
+  tmp = 0;
+  argp = stack;
+
+  if (ecif->cif->rtype->type == FFI_TYPE_STRUCT && ecif->cif->rtype->size > 8)
+    {
+      *(void **) argp = ecif->rvalue;
+      argp += 4;
+    }
+
+  avn = ecif->cif->nargs;
+  p_argv = ecif->avalue;
+
+  for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
+       (i != 0) && (avn != 0);
+       i--, p_arg++)
+    {
+      size_t z;
+
+      /* Align if necessary.  */
+      if (((*p_arg)->alignment - 1) & (unsigned) argp)
+	argp = (char *) ALIGN (argp, (*p_arg)->alignment);
+
+      if (avn != 0) 
+	{
+	  avn--;
+	  z = (*p_arg)->size;
+	  if (z < sizeof (int))
+	    {
+	      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:
+	  	  z = (*p_arg)->size;
+	  	  if ((*p_arg)->alignment != 1)
+		    memcpy (argp, *p_argv, z);
+		  else
+		    memcpy (argp + 4 - z, *p_argv, z);
+	  	  z = sizeof (int);
+		  break;
+
+		default:
+		  FFI_ASSERT(0);
+		}
+	    }
+	  else if (z == sizeof (int))
+	    {
+	       *(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
+	    }
+	  else
+	    {
+	      if ((*p_arg)->type == FFI_TYPE_STRUCT)
+	        {
+		  if (z > 8)
+		    {
+		      *(unsigned int *) argp = (unsigned int)(void *)(* p_argv);
+		      z = sizeof(void *);
+		    }
+		  else
+		    {
+	              memcpy(argp, *p_argv, z);
+		      z = 8;
+		    }
+	        }
+	      else
+	        {
+		  /* Double or long long 64bit.  */
+	          memcpy (argp, *p_argv, z);
+	        }
+	    }
+	  p_argv++;
+	  argp += z;
+	}
+    }
+  
+  return;
+}
+
+/* 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 = (unsigned) cif->rtype->type;
+      break;
+
+    case FFI_TYPE_STRUCT:
+      if (cif->rtype->size <= 4)
+	cif->flags = FFI_TYPE_INT;
+
+      else if (cif->rtype->size <= 8)
+	cif->flags = FFI_TYPE_DOUBLE;
+
+      else
+	cif->flags = (unsigned) cif->rtype->type;
+      break;
+
+    case FFI_TYPE_SINT64:
+    case FFI_TYPE_UINT64:
+    case FFI_TYPE_DOUBLE:
+      cif->flags = FFI_TYPE_DOUBLE;
+      break;
+
+    case FFI_TYPE_FLOAT:
+    default:
+      cif->flags = FFI_TYPE_INT;
+      break;
+    }
+
+  return FFI_OK;
+}
+
+extern void ffi_call_SYSV(void (*)(char *, extended_cif *), extended_cif *,
+			  unsigned, unsigned, unsigned *, void (*fn)(void));
+
+void ffi_call(ffi_cif *cif, void (*fn)(void), 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))
+    {
+      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, ecif.rvalue, fn);
+      if (cif->rtype->type == FFI_TYPE_STRUCT)
+	{
+	  int size = cif->rtype->size;
+	  int align = cif->rtype->alignment;
+
+	  if (size < 4)
+	    {
+	      if (align == 1)
+	        *(unsigned long *)(ecif.rvalue) <<= (4 - size) * 8;
+	    }
+	  else if (4 < size && size < 8)
+	    {
+	      if (align == 1)
+		{
+		  memcpy (ecif.rvalue, ecif.rvalue + 8-size, size);
+		}
+	      else if (align == 2)
+		{
+		  if (size & 1)
+		    size += 1;
+
+		  if (size != 8)
+		    memcpy (ecif.rvalue, ecif.rvalue + 8-size, size);
+		}
+	    }
+	}
+      break;
+
+    default:
+      FFI_ASSERT(0);
+      break;
+    }
+}