Check in a pristine copy of GCC 4.8.1.

The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.

GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.

Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3

4 files changed, 2263 insertions, 0 deletions

diff --git a/gcc-4.8.1/libffi/src/mips/ffi.c b/gcc-4.8.1/libffi/src/mips/ffi.c
new file mode 100644
index 000000000..03121e392
--- /dev/null
+++ b/gcc-4.8.1/libffi/src/mips/ffi.c
@@ -0,0 +1,1043 @@
+/* -----------------------------------------------------------------------
+   ffi.c - Copyright (c) 2011  Anthony Green
+           Copyright (c) 2008  David Daney
+           Copyright (c) 1996, 2007, 2008, 2011  Red Hat, Inc.
+   
+   MIPS 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 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.
+   ----------------------------------------------------------------------- */
+
+#include <ffi.h>
+#include <ffi_common.h>
+
+#include <stdlib.h>
+
+#ifdef __GNUC__
+#  if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3))
+#    define USE__BUILTIN___CLEAR_CACHE 1
+#  endif
+#endif
+
+#ifndef USE__BUILTIN___CLEAR_CACHE
+#  if defined(__OpenBSD__)
+#    include <mips64/sysarch.h>
+#  else
+#    include <sys/cachectl.h>
+#  endif
+#endif
+
+#ifdef FFI_DEBUG
+# define FFI_MIPS_STOP_HERE() ffi_stop_here()
+#else
+# define FFI_MIPS_STOP_HERE() do {} while(0)
+#endif
+
+#ifdef FFI_MIPS_N32
+#define FIX_ARGP \
+FFI_ASSERT(argp <= &stack[bytes]); \
+if (argp == &stack[bytes]) \
+{ \
+  argp = stack; \
+  FFI_MIPS_STOP_HERE(); \
+}
+#else
+#define FIX_ARGP 
+#endif
+
+
+/* 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(char *stack, 
+			  extended_cif *ecif,
+			  int bytes,
+			  int flags)
+{
+  int i;
+  void **p_argv;
+  char *argp;
+  ffi_type **p_arg;
+
+#ifdef FFI_MIPS_N32
+  /* If more than 8 double words are used, the remainder go
+     on the stack. We reorder stuff on the stack here to 
+     support this easily. */
+  if (bytes > 8 * sizeof(ffi_arg))
+    argp = &stack[bytes - (8 * sizeof(ffi_arg))];
+  else
+    argp = stack;
+#else
+  argp = stack;
+#endif
+
+  memset(stack, 0, bytes);
+
+#ifdef FFI_MIPS_N32
+  if ( ecif->cif->rstruct_flag != 0 )
+#else
+  if ( ecif->cif->rtype->type == FFI_TYPE_STRUCT )
+#endif  
+    {
+      *(ffi_arg *) argp = (ffi_arg) ecif->rvalue;
+      argp += sizeof(ffi_arg);
+      FIX_ARGP;
+    }
+
+  p_argv = ecif->avalue;
+
+  for (i = 0, p_arg = ecif->cif->arg_types; i < ecif->cif->nargs; i++, p_arg++)
+    {
+      size_t z;
+      unsigned int a;
+
+      /* Align if necessary.  */
+      a = (*p_arg)->alignment;
+      if (a < sizeof(ffi_arg))
+        a = sizeof(ffi_arg);
+      
+      if ((a - 1) & (unsigned long) argp)
+	{
+	  argp = (char *) ALIGN(argp, a);
+	  FIX_ARGP;
+	}
+
+      z = (*p_arg)->size;
+      if (z <= sizeof(ffi_arg))
+	{
+          int type = (*p_arg)->type;
+	  z = sizeof(ffi_arg);
+
+          /* The size of a pointer depends on the ABI */
+          if (type == FFI_TYPE_POINTER)
+            type = (ecif->cif->abi == FFI_N64
+		    || ecif->cif->abi == FFI_N64_SOFT_FLOAT)
+	      ? FFI_TYPE_SINT64 : FFI_TYPE_SINT32;
+
+	if (i < 8 && (ecif->cif->abi == FFI_N32_SOFT_FLOAT
+		      || ecif->cif->abi == FFI_N64_SOFT_FLOAT))
+	  {
+	    switch (type)
+	      {
+	      case FFI_TYPE_FLOAT:
+		type = FFI_TYPE_UINT32;
+		break;
+	      case FFI_TYPE_DOUBLE:
+		type = FFI_TYPE_UINT64;
+		break;
+	      default:
+		break;
+	      }
+	  }
+	  switch (type)
+	    {
+	      case FFI_TYPE_SINT8:
+		*(ffi_arg *)argp = *(SINT8 *)(* p_argv);
+		break;
+
+	      case FFI_TYPE_UINT8:
+		*(ffi_arg *)argp = *(UINT8 *)(* p_argv);
+		break;
+		  
+	      case FFI_TYPE_SINT16:
+		*(ffi_arg *)argp = *(SINT16 *)(* p_argv);
+		break;
+		  
+	      case FFI_TYPE_UINT16:
+		*(ffi_arg *)argp = *(UINT16 *)(* p_argv);
+		break;
+		  
+	      case FFI_TYPE_SINT32:
+		*(ffi_arg *)argp = *(SINT32 *)(* p_argv);
+		break;
+		  
+	      case FFI_TYPE_UINT32:
+		*(ffi_arg *)argp = *(UINT32 *)(* p_argv);
+		break;
+
+	      /* This can only happen with 64bit slots.  */
+	      case FFI_TYPE_FLOAT:
+		*(float *) argp = *(float *)(* p_argv);
+		break;
+
+	      /* Handle structures.  */
+	      default:
+		memcpy(argp, *p_argv, (*p_arg)->size);
+		break;
+	    }
+	}
+      else
+	{
+#ifdef FFI_MIPS_O32
+	  memcpy(argp, *p_argv, z);
+#else
+	  {
+	    unsigned long end = (unsigned long) argp + z;
+	    unsigned long cap = (unsigned long) stack + bytes;
+
+	    /* Check if the data will fit within the register space.
+	       Handle it if it doesn't.  */
+
+	    if (end <= cap)
+	      memcpy(argp, *p_argv, z);
+	    else
+	      {
+		unsigned long portion = cap - (unsigned long)argp;
+
+		memcpy(argp, *p_argv, portion);
+		argp = stack;
+                z -= portion;
+		memcpy(argp, (void*)((unsigned long)(*p_argv) + portion),
+                       z);
+	      }
+	  }
+#endif
+      }
+      p_argv++;
+      argp += z;
+      FIX_ARGP;
+    }
+}
+
+#ifdef FFI_MIPS_N32
+
+/* The n32 spec says that if "a chunk consists solely of a double 
+   float field (but not a double, which is part of a union), it
+   is passed in a floating point register. Any other chunk is
+   passed in an integer register". This code traverses structure
+   definitions and generates the appropriate flags. */
+
+static unsigned
+calc_n32_struct_flags(int soft_float, ffi_type *arg,
+		      unsigned *loc, unsigned *arg_reg)
+{
+  unsigned flags = 0;
+  unsigned index = 0;
+
+  ffi_type *e;
+
+  if (soft_float)
+    return 0;
+
+  while ((e = arg->elements[index]))
+    {
+      /* Align this object.  */
+      *loc = ALIGN(*loc, e->alignment);
+      if (e->type == FFI_TYPE_DOUBLE)
+	{
+          /* Already aligned to FFI_SIZEOF_ARG.  */
+          *arg_reg = *loc / FFI_SIZEOF_ARG;
+          if (*arg_reg > 7)
+            break;
+	  flags += (FFI_TYPE_DOUBLE << (*arg_reg * FFI_FLAG_BITS));
+          *loc += e->size;
+	}
+      else
+        *loc += e->size;
+      index++;
+    }
+  /* Next Argument register at alignment of FFI_SIZEOF_ARG.  */
+  *arg_reg = ALIGN(*loc, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+
+  return flags;
+}
+
+static unsigned
+calc_n32_return_struct_flags(int soft_float, ffi_type *arg)
+{
+  unsigned flags = 0;
+  unsigned small = FFI_TYPE_SMALLSTRUCT;
+  ffi_type *e;
+
+  /* Returning structures under n32 is a tricky thing.
+     A struct with only one or two floating point fields 
+     is returned in $f0 (and $f2 if necessary). Any other
+     struct results at most 128 bits are returned in $2
+     (the first 64 bits) and $3 (remainder, if necessary).
+     Larger structs are handled normally. */
+  
+  if (arg->size > 16)
+    return 0;
+
+  if (arg->size > 8)
+    small = FFI_TYPE_SMALLSTRUCT2;
+
+  e = arg->elements[0];
+
+  if (e->type == FFI_TYPE_DOUBLE)
+    flags = FFI_TYPE_DOUBLE;
+  else if (e->type == FFI_TYPE_FLOAT)
+    flags = FFI_TYPE_FLOAT;
+
+  if (flags && (e = arg->elements[1]))
+    {
+      if (e->type == FFI_TYPE_DOUBLE)
+	flags += FFI_TYPE_DOUBLE << FFI_FLAG_BITS;
+      else if (e->type == FFI_TYPE_FLOAT)
+	flags += FFI_TYPE_FLOAT << FFI_FLAG_BITS;
+      else 
+	return small;
+
+      if (flags && (arg->elements[2]))
+	{
+	  /* There are three arguments and the first two are 
+	     floats! This must be passed the old way. */
+	  return small;
+	}
+      if (soft_float)
+	flags += FFI_TYPE_STRUCT_SOFT;
+    }
+  else
+    if (!flags)
+      return small;
+
+  return flags;
+}
+
+#endif
+
+/* Perform machine dependent cif processing */
+ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
+{
+  cif->flags = 0;
+
+#ifdef FFI_MIPS_O32
+  /* Set the flags necessary for O32 processing.  FFI_O32_SOFT_FLOAT
+   * does not have special handling for floating point args.
+   */
+
+  if (cif->rtype->type != FFI_TYPE_STRUCT && cif->abi == FFI_O32)
+    {
+      if (cif->nargs > 0)
+	{
+	  switch ((cif->arg_types)[0]->type)
+	    {
+	    case FFI_TYPE_FLOAT:
+	    case FFI_TYPE_DOUBLE:
+	      cif->flags += (cif->arg_types)[0]->type;
+	      break;
+	      
+	    default:
+	      break;
+	    }
+
+	  if (cif->nargs > 1)
+	    {
+	      /* Only handle the second argument if the first
+		 is a float or double. */
+	      if (cif->flags)
+		{
+		  switch ((cif->arg_types)[1]->type)
+		    {
+		    case FFI_TYPE_FLOAT:
+		    case FFI_TYPE_DOUBLE:
+		      cif->flags += (cif->arg_types)[1]->type << FFI_FLAG_BITS;
+		      break;
+		      
+		    default:
+		      break;
+		    }
+		}
+	    }
+	}
+    }
+      
+  /* Set the return type flag */
+
+  if (cif->abi == FFI_O32_SOFT_FLOAT)
+    {
+      switch (cif->rtype->type)
+        {
+        case FFI_TYPE_VOID:
+        case FFI_TYPE_STRUCT:
+          cif->flags += cif->rtype->type << (FFI_FLAG_BITS * 2);
+          break;
+
+        case FFI_TYPE_SINT64:
+        case FFI_TYPE_UINT64:
+        case FFI_TYPE_DOUBLE:
+          cif->flags += FFI_TYPE_UINT64 << (FFI_FLAG_BITS * 2);
+          break;
+      
+        case FFI_TYPE_FLOAT:
+        default:
+          cif->flags += FFI_TYPE_INT << (FFI_FLAG_BITS * 2);
+          break;
+        }
+    }
+  else
+    {
+      /* FFI_O32 */      
+      switch (cif->rtype->type)
+        {
+        case FFI_TYPE_VOID:
+        case FFI_TYPE_STRUCT:
+        case FFI_TYPE_FLOAT:
+        case FFI_TYPE_DOUBLE:
+          cif->flags += cif->rtype->type << (FFI_FLAG_BITS * 2);
+          break;
+
+        case FFI_TYPE_SINT64:
+        case FFI_TYPE_UINT64:
+          cif->flags += FFI_TYPE_UINT64 << (FFI_FLAG_BITS * 2);
+          break;
+      
+        default:
+          cif->flags += FFI_TYPE_INT << (FFI_FLAG_BITS * 2);
+          break;
+        }
+    }
+#endif
+
+#ifdef FFI_MIPS_N32
+  /* Set the flags necessary for N32 processing */
+  {
+    int type;
+    unsigned arg_reg = 0;
+    unsigned loc = 0;
+    unsigned count = (cif->nargs < 8) ? cif->nargs : 8;
+    unsigned index = 0;
+
+    unsigned struct_flags = 0;
+    int soft_float = (cif->abi == FFI_N32_SOFT_FLOAT
+		      || cif->abi == FFI_N64_SOFT_FLOAT);
+
+    if (cif->rtype->type == FFI_TYPE_STRUCT)
+      {
+	struct_flags = calc_n32_return_struct_flags(soft_float, cif->rtype);
+
+	if (struct_flags == 0)
+	  {
+	    /* This means that the structure is being passed as
+	       a hidden argument */
+
+	    arg_reg = 1;
+	    count = (cif->nargs < 7) ? cif->nargs : 7;
+
+	    cif->rstruct_flag = !0;
+	  }
+	else
+	    cif->rstruct_flag = 0;
+      }
+    else
+      cif->rstruct_flag = 0;
+
+    while (count-- > 0 && arg_reg < 8)
+      {
+	type = (cif->arg_types)[index]->type;
+	if (soft_float)
+	  {
+	    switch (type)
+	      {
+	      case FFI_TYPE_FLOAT:
+		type = FFI_TYPE_UINT32;
+		break;
+	      case FFI_TYPE_DOUBLE:
+		type = FFI_TYPE_UINT64;
+		break;
+	      default:
+		break;
+	      }
+	  }
+	switch (type)
+	  {
+	  case FFI_TYPE_FLOAT:
+	  case FFI_TYPE_DOUBLE:
+	    cif->flags +=
+              ((cif->arg_types)[index]->type << (arg_reg * FFI_FLAG_BITS));
+	    arg_reg++;
+	    break;
+          case FFI_TYPE_LONGDOUBLE:
+            /* Align it.  */
+            arg_reg = ALIGN(arg_reg, 2);
+            /* Treat it as two adjacent doubles.  */
+	    if (soft_float) 
+	      {
+		arg_reg += 2;
+	      }
+	    else
+	      {
+		cif->flags +=
+		  (FFI_TYPE_DOUBLE << (arg_reg * FFI_FLAG_BITS));
+		arg_reg++;
+		cif->flags +=
+		  (FFI_TYPE_DOUBLE << (arg_reg * FFI_FLAG_BITS));
+		arg_reg++;
+	      }
+            break;
+
+	  case FFI_TYPE_STRUCT:
+            loc = arg_reg * FFI_SIZEOF_ARG;
+	    cif->flags += calc_n32_struct_flags(soft_float,
+						(cif->arg_types)[index],
+						&loc, &arg_reg);
+	    break;
+
+	  default:
+	    arg_reg++;
+            break;
+	  }
+
+	index++;
+      }
+
+  /* Set the return type flag */
+    switch (cif->rtype->type)
+      {
+      case FFI_TYPE_STRUCT:
+	{
+	  if (struct_flags == 0)
+	    {
+	      /* The structure is returned through a hidden
+		 first argument. Do nothing, 'cause FFI_TYPE_VOID 
+		 is 0 */
+	    }
+	  else
+	    {
+	      /* The structure is returned via some tricky
+		 mechanism */
+	      cif->flags += FFI_TYPE_STRUCT << (FFI_FLAG_BITS * 8);
+	      cif->flags += struct_flags << (4 + (FFI_FLAG_BITS * 8));
+	    }
+	  break;
+	}
+      
+      case FFI_TYPE_VOID:
+	/* Do nothing, 'cause FFI_TYPE_VOID is 0 */
+	break;
+
+      case FFI_TYPE_POINTER:
+	if (cif->abi == FFI_N32_SOFT_FLOAT || cif->abi == FFI_N32)
+	  cif->flags += FFI_TYPE_SINT32 << (FFI_FLAG_BITS * 8);
+	else
+	  cif->flags += FFI_TYPE_INT << (FFI_FLAG_BITS * 8);
+	break;
+
+      case FFI_TYPE_FLOAT:
+	if (soft_float)
+	  {
+	    cif->flags += FFI_TYPE_SINT32 << (FFI_FLAG_BITS * 8);
+	    break;
+	  }
+	/* else fall through */
+      case FFI_TYPE_DOUBLE:
+	if (soft_float)
+	  cif->flags += FFI_TYPE_INT << (FFI_FLAG_BITS * 8);
+	else
+	  cif->flags += cif->rtype->type << (FFI_FLAG_BITS * 8);
+	break;
+
+      case FFI_TYPE_LONGDOUBLE:
+	/* Long double is returned as if it were a struct containing
+	   two doubles.  */
+	if (soft_float)
+	  {
+	    cif->flags += FFI_TYPE_STRUCT << (FFI_FLAG_BITS * 8);
+	    cif->flags += FFI_TYPE_SMALLSTRUCT2 << (4 + (FFI_FLAG_BITS * 8));
+ 	  }
+	else
+	  {
+	    cif->flags += FFI_TYPE_STRUCT << (FFI_FLAG_BITS * 8);
+	    cif->flags += (FFI_TYPE_DOUBLE
+			   + (FFI_TYPE_DOUBLE << FFI_FLAG_BITS))
+					      << (4 + (FFI_FLAG_BITS * 8));
+	  }
+	break;
+      default:
+	cif->flags += FFI_TYPE_INT << (FFI_FLAG_BITS * 8);
+	break;
+      }
+  }
+#endif
+  
+  return FFI_OK;
+}
+
+/* Low level routine for calling O32 functions */
+extern int ffi_call_O32(void (*)(char *, extended_cif *, int, int), 
+			extended_cif *, unsigned, 
+			unsigned, unsigned *, void (*)(void));
+
+/* Low level routine for calling N32 functions */
+extern int ffi_call_N32(void (*)(char *, extended_cif *, int, int), 
+			extended_cif *, unsigned, 
+			unsigned, void *, void (*)(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) 
+    {
+#ifdef FFI_MIPS_O32
+    case FFI_O32:
+    case FFI_O32_SOFT_FLOAT:
+      ffi_call_O32(ffi_prep_args, &ecif, cif->bytes, 
+		   cif->flags, ecif.rvalue, fn);
+      break;
+#endif
+
+#ifdef FFI_MIPS_N32
+    case FFI_N32:
+    case FFI_N32_SOFT_FLOAT:
+    case FFI_N64:
+    case FFI_N64_SOFT_FLOAT:
+      {
+        int copy_rvalue = 0;
+	int copy_offset = 0;
+        char *rvalue_copy = ecif.rvalue;
+        if (cif->rtype->type == FFI_TYPE_STRUCT && cif->rtype->size < 16)
+          {
+            /* For structures smaller than 16 bytes we clobber memory
+               in 8 byte increments.  Make a copy so we don't clobber
+               the callers memory outside of the struct bounds.  */
+            rvalue_copy = alloca(16);
+            copy_rvalue = 1;
+          }
+	else if (cif->rtype->type == FFI_TYPE_FLOAT
+		 && (cif->abi == FFI_N64_SOFT_FLOAT
+		     || cif->abi == FFI_N32_SOFT_FLOAT))
+	  {
+	    rvalue_copy = alloca (8);
+	    copy_rvalue = 1;
+#if defined(__MIPSEB__) || defined(_MIPSEB)
+	    copy_offset = 4;
+#endif
+	  }
+        ffi_call_N32(ffi_prep_args, &ecif, cif->bytes,
+                     cif->flags, rvalue_copy, fn);
+        if (copy_rvalue)
+          memcpy(ecif.rvalue, rvalue_copy + copy_offset, cif->rtype->size);
+      }
+      break;
+#endif
+
+    default:
+      FFI_ASSERT(0);
+      break;
+    }
+}
+
+#if FFI_CLOSURES
+#if defined(FFI_MIPS_O32)
+extern void ffi_closure_O32(void);
+#else
+extern void ffi_closure_N32(void);
+#endif /* FFI_MIPS_O32 */
+
+ffi_status
+ffi_prep_closure_loc (ffi_closure *closure,
+		      ffi_cif *cif,
+		      void (*fun)(ffi_cif*,void*,void**,void*),
+		      void *user_data,
+		      void *codeloc)
+{
+  unsigned int *tramp = (unsigned int *) &closure->tramp[0];
+  void * fn;
+  char *clear_location = (char *) codeloc;
+
+#if defined(FFI_MIPS_O32)
+  if (cif->abi != FFI_O32 && cif->abi != FFI_O32_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+  fn = ffi_closure_O32;
+#else
+#if _MIPS_SIM ==_ABIN32
+  if (cif->abi != FFI_N32
+      && cif->abi != FFI_N32_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+#else
+  if (cif->abi != FFI_N64
+      && cif->abi != FFI_N64_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+#endif
+  fn = ffi_closure_N32;
+#endif /* FFI_MIPS_O32 */
+
+#if defined(FFI_MIPS_O32) || (_MIPS_SIM ==_ABIN32)
+  /* lui  $25,high(fn) */
+  tramp[0] = 0x3c190000 | ((unsigned)fn >> 16);
+  /* ori  $25,low(fn)  */
+  tramp[1] = 0x37390000 | ((unsigned)fn & 0xffff);
+  /* lui  $12,high(codeloc) */
+  tramp[2] = 0x3c0c0000 | ((unsigned)codeloc >> 16);
+  /* jr   $25          */
+  tramp[3] = 0x03200008;
+  /* ori  $12,low(codeloc)  */
+  tramp[4] = 0x358c0000 | ((unsigned)codeloc & 0xffff);
+#else
+  /* N64 has a somewhat larger trampoline.  */
+  /* lui  $25,high(fn) */
+  tramp[0] = 0x3c190000 | ((unsigned long)fn >> 48);
+  /* lui  $12,high(codeloc) */
+  tramp[1] = 0x3c0c0000 | ((unsigned long)codeloc >> 48);
+  /* ori  $25,mid-high(fn)  */
+  tramp[2] = 0x37390000 | (((unsigned long)fn >> 32 ) & 0xffff);
+  /* ori  $12,mid-high(codeloc)  */
+  tramp[3] = 0x358c0000 | (((unsigned long)codeloc >> 32) & 0xffff);
+  /* dsll $25,$25,16 */
+  tramp[4] = 0x0019cc38;
+  /* dsll $12,$12,16 */
+  tramp[5] = 0x000c6438;
+  /* ori  $25,mid-low(fn)  */
+  tramp[6] = 0x37390000 | (((unsigned long)fn >> 16 ) & 0xffff);
+  /* ori  $12,mid-low(codeloc)  */
+  tramp[7] = 0x358c0000 | (((unsigned long)codeloc >> 16) & 0xffff);
+  /* dsll $25,$25,16 */
+  tramp[8] = 0x0019cc38;
+  /* dsll $12,$12,16 */
+  tramp[9] = 0x000c6438;
+  /* ori  $25,low(fn)  */
+  tramp[10] = 0x37390000 | ((unsigned long)fn  & 0xffff);
+  /* jr   $25          */
+  tramp[11] = 0x03200008;
+  /* ori  $12,low(codeloc)  */
+  tramp[12] = 0x358c0000 | ((unsigned long)codeloc & 0xffff);
+
+#endif
+
+  closure->cif = cif;
+  closure->fun = fun;
+  closure->user_data = user_data;
+
+#ifdef USE__BUILTIN___CLEAR_CACHE
+  __builtin___clear_cache(clear_location, clear_location + FFI_TRAMPOLINE_SIZE);
+#else
+  cacheflush (clear_location, FFI_TRAMPOLINE_SIZE, ICACHE);
+#endif
+  return FFI_OK;
+}
+
+/*
+ * Decodes the arguments to a function, which will be stored on the
+ * stack. AR is the pointer to the beginning of the integer arguments
+ * (and, depending upon the arguments, some floating-point arguments
+ * as well). FPR is a pointer to the area where floating point
+ * registers have been saved, if any.
+ *
+ * RVALUE is the location where the function return value will be
+ * stored. CLOSURE is the prepared closure to invoke.
+ *
+ * This function should only be called from assembly, which is in
+ * turn called from a trampoline.
+ *
+ * Returns the function return type.
+ *
+ * Based on the similar routine for sparc.
+ */
+int
+ffi_closure_mips_inner_O32 (ffi_closure *closure,
+			    void *rvalue, ffi_arg *ar,
+			    double *fpr)
+{
+  ffi_cif *cif;
+  void **avaluep;
+  ffi_arg *avalue;
+  ffi_type **arg_types;
+  int i, avn, argn, seen_int;
+
+  cif = closure->cif;
+  avalue = alloca (cif->nargs * sizeof (ffi_arg));
+  avaluep = alloca (cif->nargs * sizeof (ffi_arg));
+
+  seen_int = (cif->abi == FFI_O32_SOFT_FLOAT);
+  argn = 0;
+
+  if ((cif->flags >> (FFI_FLAG_BITS * 2)) == FFI_TYPE_STRUCT)
+    {
+      rvalue = (void *)(UINT32)ar[0];
+      argn = 1;
+    }
+
+  i = 0;
+  avn = cif->nargs;
+  arg_types = cif->arg_types;
+
+  while (i < avn)
+    {
+      if (i < 2 && !seen_int &&
+	  (arg_types[i]->type == FFI_TYPE_FLOAT ||
+	   arg_types[i]->type == FFI_TYPE_DOUBLE ||
+	   arg_types[i]->type == FFI_TYPE_LONGDOUBLE))
+	{
+#if defined(__MIPSEB__) || defined(_MIPSEB)
+	  if (arg_types[i]->type == FFI_TYPE_FLOAT)
+	    avaluep[i] = ((char *) &fpr[i]) + sizeof (float);
+	  else
+#endif
+	    avaluep[i] = (char *) &fpr[i];
+	}
+      else
+	{
+	  if (arg_types[i]->alignment == 8 && (argn & 0x1))
+	    argn++;
+	  switch (arg_types[i]->type)
+	    {
+	      case FFI_TYPE_SINT8:
+		avaluep[i] = &avalue[i];
+		*(SINT8 *) &avalue[i] = (SINT8) ar[argn];
+		break;
+
+	      case FFI_TYPE_UINT8:
+		avaluep[i] = &avalue[i];
+		*(UINT8 *) &avalue[i] = (UINT8) ar[argn];
+		break;
+		  
+	      case FFI_TYPE_SINT16:
+		avaluep[i] = &avalue[i];
+		*(SINT16 *) &avalue[i] = (SINT16) ar[argn];
+		break;
+		  
+	      case FFI_TYPE_UINT16:
+		avaluep[i] = &avalue[i];
+		*(UINT16 *) &avalue[i] = (UINT16) ar[argn];
+		break;
+
+	      default:
+		avaluep[i] = (char *) &ar[argn];
+		break;
+	    }
+	  seen_int = 1;
+	}
+      argn += ALIGN(arg_types[i]->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+      i++;
+    }
+
+  /* Invoke the closure. */
+  (closure->fun) (cif, rvalue, avaluep, closure->user_data);
+
+  if (cif->abi == FFI_O32_SOFT_FLOAT)
+    {
+      switch (cif->rtype->type)
+        {
+        case FFI_TYPE_FLOAT:
+          return FFI_TYPE_INT;
+        case FFI_TYPE_DOUBLE:
+          return FFI_TYPE_UINT64;
+        default:
+          return cif->rtype->type;
+        }
+    }
+  else
+    {
+      return cif->rtype->type;
+    }
+}
+
+#if defined(FFI_MIPS_N32)
+
+static void
+copy_struct_N32(char *target, unsigned offset, ffi_abi abi, ffi_type *type,
+                int argn, unsigned arg_offset, ffi_arg *ar,
+                ffi_arg *fpr, int soft_float)
+{
+  ffi_type **elt_typep = type->elements;
+  while(*elt_typep)
+    {
+      ffi_type *elt_type = *elt_typep;
+      unsigned o;
+      char *tp;
+      char *argp;
+      char *fpp;
+
+      o = ALIGN(offset, elt_type->alignment);
+      arg_offset += o - offset;
+      offset = o;
+      argn += arg_offset / sizeof(ffi_arg);
+      arg_offset = arg_offset % sizeof(ffi_arg);
+
+      argp = (char *)(ar + argn);
+      fpp = (char *)(argn >= 8 ? ar + argn : fpr + argn);
+
+      tp = target + offset;
+
+      if (elt_type->type == FFI_TYPE_DOUBLE && !soft_float)
+        *(double *)tp = *(double *)fpp;
+      else
+        memcpy(tp, argp + arg_offset, elt_type->size);
+
+      offset += elt_type->size;
+      arg_offset += elt_type->size;
+      elt_typep++;
+      argn += arg_offset / sizeof(ffi_arg);
+      arg_offset = arg_offset % sizeof(ffi_arg);
+    }
+}
+
+/*
+ * Decodes the arguments to a function, which will be stored on the
+ * stack. AR is the pointer to the beginning of the integer
+ * arguments. FPR is a pointer to the area where floating point
+ * registers have been saved.
+ *
+ * RVALUE is the location where the function return value will be
+ * stored. CLOSURE is the prepared closure to invoke.
+ *
+ * This function should only be called from assembly, which is in
+ * turn called from a trampoline.
+ *
+ * Returns the function return flags.
+ *
+ */
+int
+ffi_closure_mips_inner_N32 (ffi_closure *closure,
+			    void *rvalue, ffi_arg *ar,
+			    ffi_arg *fpr)
+{
+  ffi_cif *cif;
+  void **avaluep;
+  ffi_arg *avalue;
+  ffi_type **arg_types;
+  int i, avn, argn;
+  int soft_float;
+  ffi_arg *argp;
+
+  cif = closure->cif;
+  soft_float = cif->abi == FFI_N64_SOFT_FLOAT
+    || cif->abi == FFI_N32_SOFT_FLOAT;
+  avalue = alloca (cif->nargs * sizeof (ffi_arg));
+  avaluep = alloca (cif->nargs * sizeof (ffi_arg));
+
+  argn = 0;
+
+  if (cif->rstruct_flag)
+    {
+#if _MIPS_SIM==_ABIN32
+      rvalue = (void *)(UINT32)ar[0];
+#else /* N64 */
+      rvalue = (void *)ar[0];
+#endif
+      argn = 1;
+    }
+
+  i = 0;
+  avn = cif->nargs;
+  arg_types = cif->arg_types;
+
+  while (i < avn)
+    {
+      if (arg_types[i]->type == FFI_TYPE_FLOAT
+	  || arg_types[i]->type == FFI_TYPE_DOUBLE
+	  || arg_types[i]->type == FFI_TYPE_LONGDOUBLE)
+        {
+          argp = (argn >= 8 || soft_float) ? ar + argn : fpr + argn;
+          if ((arg_types[i]->type == FFI_TYPE_LONGDOUBLE) && ((unsigned)argp & (arg_types[i]->alignment-1)))
+            {
+              argp=(ffi_arg*)ALIGN(argp,arg_types[i]->alignment);
+              argn++;
+            }
+#if defined(__MIPSEB__) || defined(_MIPSEB)
+          if (arg_types[i]->type == FFI_TYPE_FLOAT && argn < 8)
+            avaluep[i] = ((char *) argp) + sizeof (float);
+          else
+#endif
+            avaluep[i] = (char *) argp;
+        }
+      else
+        {
+          unsigned type = arg_types[i]->type;
+
+          if (arg_types[i]->alignment > sizeof(ffi_arg))
+            argn = ALIGN(argn, arg_types[i]->alignment / sizeof(ffi_arg));
+
+          argp = ar + argn;
+
+          /* The size of a pointer depends on the ABI */
+          if (type == FFI_TYPE_POINTER)
+            type = (cif->abi == FFI_N64 || cif->abi == FFI_N64_SOFT_FLOAT)
+	      ? FFI_TYPE_SINT64 : FFI_TYPE_SINT32;
+
+	  if (soft_float && type ==  FFI_TYPE_FLOAT)
+	    type = FFI_TYPE_UINT32;
+
+          switch (type)
+            {
+            case FFI_TYPE_SINT8:
+              avaluep[i] = &avalue[i];
+              *(SINT8 *) &avalue[i] = (SINT8) *argp;
+              break;
+
+            case FFI_TYPE_UINT8:
+              avaluep[i] = &avalue[i];
+              *(UINT8 *) &avalue[i] = (UINT8) *argp;
+              break;
+
+            case FFI_TYPE_SINT16:
+              avaluep[i] = &avalue[i];
+              *(SINT16 *) &avalue[i] = (SINT16) *argp;
+              break;
+
+            case FFI_TYPE_UINT16:
+              avaluep[i] = &avalue[i];
+              *(UINT16 *) &avalue[i] = (UINT16) *argp;
+              break;
+
+            case FFI_TYPE_SINT32:
+              avaluep[i] = &avalue[i];
+              *(SINT32 *) &avalue[i] = (SINT32) *argp;
+              break;
+
+            case FFI_TYPE_UINT32:
+              avaluep[i] = &avalue[i];
+              *(UINT32 *) &avalue[i] = (UINT32) *argp;
+              break;
+
+            case FFI_TYPE_STRUCT:
+              if (argn < 8)
+                {
+                  /* Allocate space for the struct as at least part of
+                     it was passed in registers.  */
+                  avaluep[i] = alloca(arg_types[i]->size);
+                  copy_struct_N32(avaluep[i], 0, cif->abi, arg_types[i],
+                                  argn, 0, ar, fpr, soft_float);
+
+                  break;
+                }
+              /* Else fall through.  */
+            default:
+              avaluep[i] = (char *) argp;
+              break;
+            }
+        }
+      argn += ALIGN(arg_types[i]->size, sizeof(ffi_arg)) / sizeof(ffi_arg);
+      i++;
+    }
+
+  /* Invoke the closure. */
+  (closure->fun) (cif, rvalue, avaluep, closure->user_data);
+
+  return cif->flags >> (FFI_FLAG_BITS * 8);
+}
+
+#endif /* FFI_MIPS_N32 */
+
+#endif /* FFI_CLOSURES */
diff --git a/gcc-4.8.1/libffi/src/mips/ffitarget.h b/gcc-4.8.1/libffi/src/mips/ffitarget.h
new file mode 100644
index 000000000..717d65951
--- /dev/null
+++ b/gcc-4.8.1/libffi/src/mips/ffitarget.h
@@ -0,0 +1,247 @@
+/* -----------------------------------------------------------------*-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
+
diff --git a/gcc-4.8.1/libffi/src/mips/n32.S b/gcc-4.8.1/libffi/src/mips/n32.S
new file mode 100644
index 000000000..ff4bbce1d
--- /dev/null
+++ b/gcc-4.8.1/libffi/src/mips/n32.S
@@ -0,0 +1,592 @@
+/* -----------------------------------------------------------------------
+   n32.S - Copyright (c) 1996, 1998, 2005, 2007, 2009, 2010  Red Hat, Inc.
+   
+   MIPS 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 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.
+   ----------------------------------------------------------------------- */
+
+#define LIBFFI_ASM	
+#include <fficonfig.h>
+#include <ffi.h>
+
+/* Only build this code if we are compiling for n32 */	
+
+#if defined(FFI_MIPS_N32)
+
+#define callback a0
+#define bytes	 a2
+#define flags	 a3
+#define raddr    a4
+#define fn       a5
+
+#define SIZEOF_FRAME	( 8 * FFI_SIZEOF_ARG )
+
+#ifdef __GNUC__
+	.abicalls
+#endif
+	.set mips4
+	.text
+	.align	2
+	.globl	ffi_call_N32
+	.ent	ffi_call_N32
+ffi_call_N32:	
+.LFB3:
+	.frame	$fp, SIZEOF_FRAME, ra
+	.mask	0xc0000000,-FFI_SIZEOF_ARG
+	.fmask	0x00000000,0
+
+	# Prologue
+	SUBU	$sp, SIZEOF_FRAME			# Frame size
+.LCFI0:
+	REG_S	$fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp)	# Save frame pointer
+	REG_S	ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)	# Save return address
+.LCFI1:
+	move	$fp, $sp
+.LCFI3:
+	move	t9, callback	# callback function pointer
+	REG_S	bytes, 2*FFI_SIZEOF_ARG($fp) # bytes
+	REG_S	flags, 3*FFI_SIZEOF_ARG($fp) # flags
+	REG_S	raddr, 4*FFI_SIZEOF_ARG($fp) # raddr
+	REG_S	fn,    5*FFI_SIZEOF_ARG($fp) # fn
+
+	# Allocate at least 4 words in the argstack
+	move	v0, bytes
+	bge	bytes, 4 * FFI_SIZEOF_ARG, bigger	
+	LI	v0, 4 * FFI_SIZEOF_ARG
+	b	sixteen
+
+	bigger:	
+	ADDU	t4, v0, 2 * FFI_SIZEOF_ARG -1	# make sure it is aligned 
+	and	v0, t4, -2 * FFI_SIZEOF_ARG		# to a proper boundry.
+
+sixteen:
+	SUBU	$sp, $sp, v0	# move the stack pointer to reflect the
+				# arg space
+
+	move	a0, $sp         # 4 * FFI_SIZEOF_ARG
+	ADDU	a3, $fp, 3 * FFI_SIZEOF_ARG
+
+	# Call ffi_prep_args
+	jal	t9
+	
+	# Copy the stack pointer to t9
+	move	t9, $sp
+	
+	# Fix the stack if there are more than 8 64bit slots worth
+	# of arguments.
+
+	# Load the number of bytes
+	REG_L	t6, 2*FFI_SIZEOF_ARG($fp)
+
+	# Is it bigger than 8 * FFI_SIZEOF_ARG?
+	daddiu	t8, t6, -(8 * FFI_SIZEOF_ARG)
+	bltz	t8, loadregs
+
+	ADDU	t9, t9, t8
+	
+loadregs:	
+
+	REG_L	t6, 3*FFI_SIZEOF_ARG($fp)  # load the flags word into t6.
+
+	and	t4, t6, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg1_floatp
+	REG_L	a0, 0*FFI_SIZEOF_ARG(t9)
+	b	arg1_next
+arg1_floatp:	
+	bne	t4, FFI_TYPE_FLOAT, arg1_doublep
+	l.s	$f12, 0*FFI_SIZEOF_ARG(t9)
+	b	arg1_next
+arg1_doublep:	
+	l.d	$f12, 0*FFI_SIZEOF_ARG(t9)
+arg1_next:	
+	
+	SRL	t4, t6, 1*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg2_floatp
+	REG_L	a1, 1*FFI_SIZEOF_ARG(t9)
+	b	arg2_next
+arg2_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg2_doublep
+	l.s	$f13, 1*FFI_SIZEOF_ARG(t9)	
+	b	arg2_next
+arg2_doublep:	
+	l.d	$f13, 1*FFI_SIZEOF_ARG(t9)	
+arg2_next:	
+	
+	SRL	t4, t6, 2*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg3_floatp
+	REG_L	a2, 2*FFI_SIZEOF_ARG(t9)
+	b	arg3_next
+arg3_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg3_doublep
+	l.s	$f14, 2*FFI_SIZEOF_ARG(t9)	
+	b	arg3_next
+arg3_doublep:	
+	l.d	$f14, 2*FFI_SIZEOF_ARG(t9)	
+arg3_next:	
+	
+	SRL	t4, t6, 3*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg4_floatp
+	REG_L	a3, 3*FFI_SIZEOF_ARG(t9)
+	b	arg4_next
+arg4_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg4_doublep
+	l.s	$f15, 3*FFI_SIZEOF_ARG(t9)	
+	b	arg4_next
+arg4_doublep:	
+	l.d	$f15, 3*FFI_SIZEOF_ARG(t9)	
+arg4_next:	
+	
+	SRL	t4, t6, 4*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg5_floatp
+	REG_L	a4, 4*FFI_SIZEOF_ARG(t9)
+	b	arg5_next
+arg5_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg5_doublep
+	l.s	$f16, 4*FFI_SIZEOF_ARG(t9)	
+	b	arg5_next
+arg5_doublep:	
+	l.d	$f16, 4*FFI_SIZEOF_ARG(t9)	
+arg5_next:	
+	
+	SRL	t4, t6, 5*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg6_floatp
+	REG_L	a5, 5*FFI_SIZEOF_ARG(t9)
+	b	arg6_next
+arg6_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg6_doublep
+	l.s	$f17, 5*FFI_SIZEOF_ARG(t9)	
+	b	arg6_next
+arg6_doublep:	
+	l.d	$f17, 5*FFI_SIZEOF_ARG(t9)	
+arg6_next:	
+	
+	SRL	t4, t6, 6*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg7_floatp
+	REG_L	a6, 6*FFI_SIZEOF_ARG(t9)
+	b	arg7_next
+arg7_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg7_doublep
+	l.s	$f18, 6*FFI_SIZEOF_ARG(t9)	
+	b	arg7_next
+arg7_doublep:	
+	l.d	$f18, 6*FFI_SIZEOF_ARG(t9)	
+arg7_next:	
+	
+	SRL	t4, t6, 7*FFI_FLAG_BITS
+	and	t4, ((1<<FFI_FLAG_BITS)-1)
+	bnez	t4, arg8_floatp
+	REG_L	a7, 7*FFI_SIZEOF_ARG(t9)
+	b	arg8_next
+arg8_floatp:
+	bne	t4, FFI_TYPE_FLOAT, arg8_doublep
+ 	l.s	$f19, 7*FFI_SIZEOF_ARG(t9)	
+	b	arg8_next
+arg8_doublep:	
+ 	l.d	$f19, 7*FFI_SIZEOF_ARG(t9)	
+arg8_next:	
+
+callit:		
+	# Load the function pointer
+	REG_L	t9, 5*FFI_SIZEOF_ARG($fp)
+
+	# If the return value pointer is NULL, assume no return value.
+	REG_L	t5, 4*FFI_SIZEOF_ARG($fp)
+	beqz	t5, noretval
+
+	# Shift the return type flag over
+	SRL	t6, 8*FFI_FLAG_BITS
+
+	beq	t6, FFI_TYPE_SINT32, retint	
+	bne     t6, FFI_TYPE_INT, retfloat
+retint:
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	REG_S	v0, 0(t4)
+	b	epilogue
+
+retfloat:
+	bne     t6, FFI_TYPE_FLOAT, retdouble
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.s	$f0, 0(t4)
+	b	epilogue
+
+retdouble:	
+	bne	t6, FFI_TYPE_DOUBLE, retstruct_d
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.d	$f0, 0(t4)
+	b	epilogue
+
+retstruct_d:	
+	bne	t6, FFI_TYPE_STRUCT_D, retstruct_f
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.d	$f0, 0(t4)
+	b	epilogue
+	
+retstruct_f:	
+	bne	t6, FFI_TYPE_STRUCT_F, retstruct_d_d
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.s	$f0, 0(t4)
+	b	epilogue
+	
+retstruct_d_d:	
+	bne	t6, FFI_TYPE_STRUCT_DD, retstruct_f_f
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.d	$f0, 0(t4)
+	s.d	$f2, 8(t4)
+	b	epilogue
+	
+retstruct_f_f:	
+	bne	t6, FFI_TYPE_STRUCT_FF, retstruct_d_f
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.s	$f0, 0(t4)
+	s.s	$f2, 4(t4)
+	b	epilogue
+	
+retstruct_d_f:	
+	bne	t6, FFI_TYPE_STRUCT_DF, retstruct_f_d
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.d	$f0, 0(t4)
+	s.s	$f2, 8(t4)
+	b	epilogue
+	
+retstruct_f_d:	
+	bne	t6, FFI_TYPE_STRUCT_FD, retstruct_d_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	s.s	$f0, 0(t4)
+	s.d	$f2, 8(t4)
+	b	epilogue
+
+retstruct_d_soft:
+	bne	t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sd	v0, 0(t4)
+	b	epilogue
+	
+retstruct_f_soft:	
+	bne	t6, FFI_TYPE_STRUCT_F_SOFT, retstruct_d_d_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sw	v0, 0(t4)
+	b	epilogue
+	
+retstruct_d_d_soft:	
+	bne	t6, FFI_TYPE_STRUCT_DD_SOFT, retstruct_f_f_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sd	v0, 0(t4)
+	sd	v1, 8(t4)
+	b	epilogue
+	
+retstruct_f_f_soft:	
+	bne	t6, FFI_TYPE_STRUCT_FF_SOFT, retstruct_d_f_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sw	v0, 0(t4)
+	sw	v1, 4(t4)
+	b	epilogue
+	
+retstruct_d_f_soft:	
+	bne	t6, FFI_TYPE_STRUCT_DF_SOFT, retstruct_f_d_soft
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sd	v0, 0(t4)
+	sw	v1, 8(t4)
+	b	epilogue
+	
+retstruct_f_d_soft:	
+	bne	t6, FFI_TYPE_STRUCT_FD_SOFT, retstruct_small
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	sw	v0, 0(t4)
+	sd	v1, 8(t4)
+	b	epilogue
+	
+retstruct_small:	
+	bne	t6, FFI_TYPE_STRUCT_SMALL, retstruct_small2
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	REG_S	v0, 0(t4)
+	b	epilogue
+	
+retstruct_small2:	
+	bne	t6, FFI_TYPE_STRUCT_SMALL2, retstruct
+	jal	t9
+	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
+	REG_S	v0, 0(t4)
+	REG_S	v1, 8(t4)
+	b	epilogue
+	
+retstruct:	
+noretval:	
+	jal	t9
+	
+	# Epilogue
+epilogue:	
+	move	$sp, $fp	
+	REG_L	$fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Restore frame pointer
+	REG_L	ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)  # Restore return address
+	ADDU	$sp, SIZEOF_FRAME		      # Fix stack pointer
+	j	ra
+
+.LFE3:
+	.end	ffi_call_N32
+
+/* ffi_closure_N32. Expects address of the passed-in ffi_closure in t0
+   ($12). Stores any arguments passed in registers onto the stack,
+   then calls ffi_closure_mips_inner_N32, which then decodes
+   them.
+	
+	Stack layout:
+
+	20 - Start of parameters, original sp
+	19 - Called function a7 save
+	18 - Called function a6 save
+	17 - Called function a5 save
+	16 - Called function a4 save
+	15 - Called function a3 save
+	14 - Called function a2 save
+	13 - Called function a1 save
+	12 - Called function a0 save
+	11 - Called function f19
+	10 - Called function f18
+	 9 - Called function f17
+	 8 - Called function f16
+	 7 - Called function f15
+         6 - Called function f14
+         5 - Called function f13
+         4 - Called function f12
+	 3 - return value high (v1 or $f2)
+	 2 - return value low (v0 or $f0)
+	 1 - ra save
+	 0 - gp save our sp  points here
+	 */
+
+#define SIZEOF_FRAME2	(20 * FFI_SIZEOF_ARG)
+	
+#define A7_OFF2		(19 * FFI_SIZEOF_ARG)
+#define A6_OFF2		(18 * FFI_SIZEOF_ARG)
+#define A5_OFF2		(17 * FFI_SIZEOF_ARG)
+#define A4_OFF2		(16 * FFI_SIZEOF_ARG)
+#define A3_OFF2		(15 * FFI_SIZEOF_ARG)
+#define A2_OFF2		(14 * FFI_SIZEOF_ARG)
+#define A1_OFF2		(13 * FFI_SIZEOF_ARG)
+#define A0_OFF2		(12 * FFI_SIZEOF_ARG)	
+
+#define F19_OFF2	(11 * FFI_SIZEOF_ARG)
+#define F18_OFF2	(10 * FFI_SIZEOF_ARG)
+#define F17_OFF2	(9  * FFI_SIZEOF_ARG)
+#define F16_OFF2	(8  * FFI_SIZEOF_ARG)
+#define F15_OFF2	(7  * FFI_SIZEOF_ARG)
+#define F14_OFF2	(6  * FFI_SIZEOF_ARG)
+#define F13_OFF2	(5  * FFI_SIZEOF_ARG)
+#define F12_OFF2	(4  * FFI_SIZEOF_ARG)
+
+#define V1_OFF2		(3  * FFI_SIZEOF_ARG)
+#define V0_OFF2		(2  * FFI_SIZEOF_ARG)
+
+#define RA_OFF2		(1  * FFI_SIZEOF_ARG)
+#define GP_OFF2		(0  * FFI_SIZEOF_ARG)
+
+	.align	2
+	.globl	ffi_closure_N32
+	.ent	ffi_closure_N32
+ffi_closure_N32:
+.LFB2:
+	.frame	$sp, SIZEOF_FRAME2, ra
+	.mask	0x90000000,-(SIZEOF_FRAME2 - RA_OFF2)
+	.fmask	0x00000000,0
+	SUBU	$sp, SIZEOF_FRAME2
+.LCFI5:
+	.cpsetup t9, GP_OFF2, ffi_closure_N32
+	REG_S	ra, RA_OFF2($sp)	# Save return address
+.LCFI6:
+	# Store all possible argument registers. If there are more than
+	# fit in registers, then they were stored on the stack.
+	REG_S	a0, A0_OFF2($sp)
+	REG_S	a1, A1_OFF2($sp)
+	REG_S	a2, A2_OFF2($sp)
+	REG_S	a3, A3_OFF2($sp)
+	REG_S	a4, A4_OFF2($sp)
+	REG_S	a5, A5_OFF2($sp)
+	REG_S	a6, A6_OFF2($sp)
+	REG_S	a7, A7_OFF2($sp)
+
+	# Store all possible float/double registers.
+	s.d	$f12, F12_OFF2($sp)
+	s.d	$f13, F13_OFF2($sp)
+	s.d	$f14, F14_OFF2($sp)
+	s.d	$f15, F15_OFF2($sp)
+	s.d	$f16, F16_OFF2($sp)
+	s.d	$f17, F17_OFF2($sp)
+	s.d	$f18, F18_OFF2($sp)
+	s.d	$f19, F19_OFF2($sp)
+
+	# Call ffi_closure_mips_inner_N32 to do the real work.
+	LA	t9, ffi_closure_mips_inner_N32
+	move	a0, $12	 # Pointer to the ffi_closure
+	ADDU	a1, $sp, V0_OFF2
+	ADDU	a2, $sp, A0_OFF2
+	ADDU	a3, $sp, F12_OFF2
+	jalr	t9
+
+	# Return flags are in v0
+	bne     v0, FFI_TYPE_SINT32, cls_retint
+	lw	v0, V0_OFF2($sp)
+	b	cls_epilogue
+
+cls_retint:
+	bne     v0, FFI_TYPE_INT, cls_retfloat
+	REG_L	v0, V0_OFF2($sp)
+	b	cls_epilogue
+
+cls_retfloat:
+	bne     v0, FFI_TYPE_FLOAT, cls_retdouble
+	l.s	$f0, V0_OFF2($sp)
+	b	cls_epilogue
+
+cls_retdouble:	
+	bne	v0, FFI_TYPE_DOUBLE, cls_retstruct_d
+	l.d	$f0, V0_OFF2($sp)
+	b	cls_epilogue
+
+cls_retstruct_d:	
+	bne	v0, FFI_TYPE_STRUCT_D, cls_retstruct_f
+	l.d	$f0, V0_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_f:	
+	bne	v0, FFI_TYPE_STRUCT_F, cls_retstruct_d_d
+	l.s	$f0, V0_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_d_d:	
+	bne	v0, FFI_TYPE_STRUCT_DD, cls_retstruct_f_f
+	l.d	$f0, V0_OFF2($sp)
+	l.d	$f2, V1_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_f_f:	
+	bne	v0, FFI_TYPE_STRUCT_FF, cls_retstruct_d_f
+	l.s	$f0, V0_OFF2($sp)
+	l.s	$f2, V1_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_d_f:	
+	bne	v0, FFI_TYPE_STRUCT_DF, cls_retstruct_f_d
+	l.d	$f0, V0_OFF2($sp)
+	l.s	$f2, V1_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_f_d:	
+	bne	v0, FFI_TYPE_STRUCT_FD, cls_retstruct_small2
+	l.s	$f0, V0_OFF2($sp)
+	l.d	$f2, V1_OFF2($sp)
+	b	cls_epilogue
+	
+cls_retstruct_small2:	
+	REG_L	v0, V0_OFF2($sp)
+	REG_L	v1, V1_OFF2($sp)
+	
+	# Epilogue
+cls_epilogue:	
+	REG_L	ra,  RA_OFF2($sp)	 # Restore return address
+	.cpreturn
+	ADDU	$sp, SIZEOF_FRAME2
+	j	ra
+.LFE2:	
+	.end	ffi_closure_N32
+
+#ifdef __GNUC__
+        .section        .eh_frame,"aw",@progbits
+.Lframe1:
+        .4byte  .LECIE1-.LSCIE1		# length
+.LSCIE1:
+        .4byte  0x0			# CIE
+        .byte   0x1			# Version 1
+        .ascii  "\000"			# Augmentation
+        .uleb128 0x1			# Code alignment 1
+        .sleb128 -4			# Data alignment -4
+        .byte   0x1f			# Return Address $31
+        .byte   0xc			# DW_CFA_def_cfa
+        .uleb128 0x1d			# in $sp
+        .uleb128 0x0			# offset 0
+        .align  EH_FRAME_ALIGN
+.LECIE1:
+
+.LSFDE1:
+        .4byte  .LEFDE1-.LASFDE1	# length.
+.LASFDE1:
+        .4byte  .LASFDE1-.Lframe1	# CIE_pointer.
+        FDE_ADDR_BYTES  .LFB3		# initial_location.
+        FDE_ADDR_BYTES  .LFE3-.LFB3	# address_range.
+        .byte   0x4			# DW_CFA_advance_loc4
+        .4byte  .LCFI0-.LFB3		# to .LCFI0
+        .byte   0xe			# DW_CFA_def_cfa_offset
+        .uleb128 SIZEOF_FRAME		# adjust stack.by SIZEOF_FRAME
+        .byte   0x4			# DW_CFA_advance_loc4
+        .4byte  .LCFI1-.LCFI0		# to .LCFI1
+        .byte   0x9e			# DW_CFA_offset of $fp
+        .uleb128 2*FFI_SIZEOF_ARG/4	# 
+        .byte   0x9f			# DW_CFA_offset of ra
+        .uleb128 1*FFI_SIZEOF_ARG/4	# 
+        .byte   0x4			# DW_CFA_advance_loc4
+        .4byte  .LCFI3-.LCFI1		# to .LCFI3
+        .byte   0xd			# DW_CFA_def_cfa_register
+        .uleb128 0x1e			# in $fp
+        .align  EH_FRAME_ALIGN
+.LEFDE1:
+.LSFDE3:
+	.4byte	.LEFDE3-.LASFDE3	# length
+.LASFDE3:
+	.4byte	.LASFDE3-.Lframe1	# CIE_pointer.
+	FDE_ADDR_BYTES	.LFB2		# initial_location.
+	FDE_ADDR_BYTES	.LFE2-.LFB2	# address_range.
+	.byte	0x4			# DW_CFA_advance_loc4
+	.4byte	.LCFI5-.LFB2		# to .LCFI5
+	.byte	0xe			# DW_CFA_def_cfa_offset
+	.uleb128 SIZEOF_FRAME2		# adjust stack.by SIZEOF_FRAME
+	.byte	0x4			# DW_CFA_advance_loc4
+	.4byte	.LCFI6-.LCFI5		# to .LCFI6
+	.byte	0x9c			# DW_CFA_offset of $gp ($28)
+	.uleb128 (SIZEOF_FRAME2 - GP_OFF2)/4
+	.byte	0x9f			# DW_CFA_offset of ra ($31)
+	.uleb128 (SIZEOF_FRAME2 - RA_OFF2)/4
+	.align	EH_FRAME_ALIGN
+.LEFDE3:
+#endif /* __GNUC__ */	
+	
+#endif
diff --git a/gcc-4.8.1/libffi/src/mips/o32.S b/gcc-4.8.1/libffi/src/mips/o32.S
new file mode 100644
index 000000000..eb279813a
--- /dev/null
+++ b/gcc-4.8.1/libffi/src/mips/o32.S
@@ -0,0 +1,381 @@
+/* -----------------------------------------------------------------------
+   o32.S - Copyright (c) 1996, 1998, 2005  Red Hat, Inc.
+   
+   MIPS 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 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.
+   ----------------------------------------------------------------------- */
+
+#define LIBFFI_ASM	
+#include <fficonfig.h>
+#include <ffi.h>
+
+/* Only build this code if we are compiling for o32 */	
+
+#if defined(FFI_MIPS_O32)
+	
+#define callback a0
+#define bytes	 a2
+#define flags	 a3
+		
+#define SIZEOF_FRAME	(4 * FFI_SIZEOF_ARG + 2 * FFI_SIZEOF_ARG)
+#define A3_OFF		(SIZEOF_FRAME + 3 * FFI_SIZEOF_ARG)
+#define FP_OFF		(SIZEOF_FRAME - 2 * FFI_SIZEOF_ARG)
+#define RA_OFF		(SIZEOF_FRAME - 1 * FFI_SIZEOF_ARG)
+
+	.abicalls
+	.text
+	.align	2
+	.globl	ffi_call_O32
+	.ent	ffi_call_O32
+ffi_call_O32:	
+$LFB0:
+	# Prologue
+	SUBU	$sp, SIZEOF_FRAME	# Frame size
+$LCFI0:
+	REG_S	$fp, FP_OFF($sp)	# Save frame pointer
+$LCFI1:
+	REG_S	ra, RA_OFF($sp)		# Save return address
+$LCFI2:
+	move	$fp, $sp
+
+$LCFI3:
+	move	t9, callback		# callback function pointer
+	REG_S	flags, A3_OFF($fp)	# flags
+
+	# Allocate at least 4 words in the argstack
+	LI	v0, 4 * FFI_SIZEOF_ARG
+	blt	bytes, v0, sixteen
+
+	ADDU	v0, bytes, 7	# make sure it is aligned 
+	and	v0, -8		# to an 8 byte boundry
+
+sixteen:
+	SUBU	$sp, v0		# move the stack pointer to reflect the
+				# arg space
+
+	ADDU	a0, $sp, 4 * FFI_SIZEOF_ARG
+
+	jalr	t9
+	
+	REG_L	t0, A3_OFF($fp)		# load the flags word
+	SRL	t2, t0, 4		# shift our arg info
+	and     t0, ((1<<4)-1)          # mask out the return type
+		
+	ADDU	$sp, 4 * FFI_SIZEOF_ARG		# adjust $sp to new args
+
+	bnez	t0, pass_d			# make it quick for int
+	REG_L	a0, 0*FFI_SIZEOF_ARG($sp)	# just go ahead and load the
+	REG_L	a1, 1*FFI_SIZEOF_ARG($sp)	# four regs.
+	REG_L	a2, 2*FFI_SIZEOF_ARG($sp)
+	REG_L	a3, 3*FFI_SIZEOF_ARG($sp)
+	b	call_it
+
+pass_d:
+	bne	t0, FFI_ARGS_D, pass_f
+	l.d	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	REG_L	a2,   2*FFI_SIZEOF_ARG($sp)	# passing a double
+	REG_L	a3,   3*FFI_SIZEOF_ARG($sp)
+	b	call_it
+
+pass_f:	
+	bne	t0, FFI_ARGS_F, pass_d_d
+	l.s	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	REG_L	a1,   1*FFI_SIZEOF_ARG($sp)	# passing a float
+	REG_L	a2,   2*FFI_SIZEOF_ARG($sp)
+	REG_L	a3,   3*FFI_SIZEOF_ARG($sp)
+	b	call_it		
+
+pass_d_d:		
+	bne	t0, FFI_ARGS_DD, pass_f_f
+	l.d	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	l.d	$f14, 2*FFI_SIZEOF_ARG($sp)	# passing two doubles
+	b	call_it
+
+pass_f_f:	
+	bne	t0, FFI_ARGS_FF, pass_d_f
+	l.s	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	l.s	$f14, 1*FFI_SIZEOF_ARG($sp)	# passing two floats
+	REG_L	a2,   2*FFI_SIZEOF_ARG($sp)
+	REG_L	a3,   3*FFI_SIZEOF_ARG($sp)
+	b	call_it
+
+pass_d_f:		
+	bne	t0, FFI_ARGS_DF, pass_f_d
+	l.d	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	l.s	$f14, 2*FFI_SIZEOF_ARG($sp)	# passing double and float
+	REG_L	a3,   3*FFI_SIZEOF_ARG($sp)
+	b	call_it
+
+pass_f_d:		
+ # assume that the only other combination must be float then double
+ #	bne	t0, FFI_ARGS_F_D, call_it
+	l.s	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
+	l.d	$f14, 2*FFI_SIZEOF_ARG($sp)	# passing double and float
+
+call_it:	
+	# Load the function pointer
+	REG_L	t9, SIZEOF_FRAME + 5*FFI_SIZEOF_ARG($fp)
+
+	# If the return value pointer is NULL, assume no return value.
+	REG_L	t1, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+	beqz	t1, noretval
+
+	bne     t2, FFI_TYPE_INT, retlonglong
+	jalr	t9
+	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+	REG_S	v0, 0(t0)
+	b	epilogue
+
+retlonglong:
+	# Really any 64-bit int, signed or not.
+	bne	t2, FFI_TYPE_UINT64, retfloat
+	jalr	t9
+	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+	REG_S	v1, 4(t0)
+	REG_S	v0, 0(t0)
+	b	epilogue
+
+retfloat:
+	bne     t2, FFI_TYPE_FLOAT, retdouble
+	jalr	t9
+	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+	s.s	$f0, 0(t0)
+	b	epilogue
+
+retdouble:	
+	bne	t2, FFI_TYPE_DOUBLE, noretval
+	jalr	t9
+	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+	s.d	$f0, 0(t0)
+	b	epilogue
+	
+noretval:	
+	jalr	t9
+	
+	# Epilogue
+epilogue:	
+	move	$sp, $fp	
+	REG_L	$fp, FP_OFF($sp)	# Restore frame pointer
+	REG_L	ra, RA_OFF($sp)		# Restore return address
+	ADDU	$sp, SIZEOF_FRAME	# Fix stack pointer
+	j	ra
+
+$LFE0:
+	.end	ffi_call_O32
+
+
+/* ffi_closure_O32. Expects address of the passed-in ffi_closure
+	in t4 ($12). Stores any arguments passed in registers onto the
+	stack, then calls ffi_closure_mips_inner_O32, which
+	then decodes them.
+	
+	Stack layout:
+
+	 3 - a3 save
+	 2 - a2 save
+	 1 - a1 save
+	 0 - a0 save, original sp
+	-1 - ra save
+	-2 - fp save
+	-3 - $16 (s0) save
+	-4 - cprestore
+	-5 - return value high (v1)
+	-6 - return value low (v0)
+	-7 - f14 (le high, be low)
+	-8 - f14 (le low, be high)
+	-9 - f12 (le high, be low)
+       -10 - f12 (le low, be high)
+       -11 - Called function a3 save
+       -12 - Called function a2 save
+       -13 - Called function a1 save
+       -14 - Called function a0 save, our sp and fp point here
+	 */
+	
+#define SIZEOF_FRAME2	(14 * FFI_SIZEOF_ARG)
+#define A3_OFF2		(SIZEOF_FRAME2 + 3 * FFI_SIZEOF_ARG)
+#define A2_OFF2		(SIZEOF_FRAME2 + 2 * FFI_SIZEOF_ARG)
+#define A1_OFF2		(SIZEOF_FRAME2 + 1 * FFI_SIZEOF_ARG)
+#define A0_OFF2		(SIZEOF_FRAME2 + 0 * FFI_SIZEOF_ARG)
+#define RA_OFF2		(SIZEOF_FRAME2 - 1 * FFI_SIZEOF_ARG)
+#define FP_OFF2		(SIZEOF_FRAME2 - 2 * FFI_SIZEOF_ARG)
+#define S0_OFF2		(SIZEOF_FRAME2 - 3 * FFI_SIZEOF_ARG)
+#define GP_OFF2		(SIZEOF_FRAME2 - 4 * FFI_SIZEOF_ARG)
+#define V1_OFF2		(SIZEOF_FRAME2 - 5 * FFI_SIZEOF_ARG)
+#define V0_OFF2		(SIZEOF_FRAME2 - 6 * FFI_SIZEOF_ARG)
+#define FA_1_1_OFF2	(SIZEOF_FRAME2 - 7 * FFI_SIZEOF_ARG)
+#define FA_1_0_OFF2	(SIZEOF_FRAME2 - 8 * FFI_SIZEOF_ARG)
+#define FA_0_1_OFF2	(SIZEOF_FRAME2 - 9 * FFI_SIZEOF_ARG)
+#define FA_0_0_OFF2	(SIZEOF_FRAME2 - 10 * FFI_SIZEOF_ARG)
+
+	.text
+	.align	2
+	.globl	ffi_closure_O32
+	.ent	ffi_closure_O32
+ffi_closure_O32:
+$LFB1:
+	# Prologue
+	.frame	$fp, SIZEOF_FRAME2, ra
+	.set	noreorder
+	.cpload	t9
+	.set	reorder
+	SUBU	$sp, SIZEOF_FRAME2
+	.cprestore GP_OFF2
+$LCFI4:
+	REG_S	$16, S0_OFF2($sp)	 # Save s0
+	REG_S	$fp, FP_OFF2($sp)	 # Save frame pointer
+	REG_S	ra, RA_OFF2($sp)	 # Save return address
+$LCFI6:
+	move	$fp, $sp
+
+$LCFI7:
+	# Store all possible argument registers. If there are more than
+	# four arguments, then they are stored above where we put a3.
+	REG_S	a0, A0_OFF2($fp)
+	REG_S	a1, A1_OFF2($fp)
+	REG_S	a2, A2_OFF2($fp)
+	REG_S	a3, A3_OFF2($fp)
+
+	# Load ABI enum to s0
+	REG_L	$16, 20($12)	# cif pointer follows tramp.
+	REG_L	$16, 0($16)	# abi is first member.
+
+	li	$13, 1		# FFI_O32
+	bne	$16, $13, 1f	# Skip fp save if FFI_O32_SOFT_FLOAT
+	
+	# Store all possible float/double registers.
+	s.d	$f12, FA_0_0_OFF2($fp)
+	s.d	$f14, FA_1_0_OFF2($fp)
+1:	
+	# Call ffi_closure_mips_inner_O32 to do the work.
+	la	t9, ffi_closure_mips_inner_O32
+	move	a0, $12	 # Pointer to the ffi_closure
+	addu	a1, $fp, V0_OFF2
+	addu	a2, $fp, A0_OFF2
+	addu	a3, $fp, FA_0_0_OFF2
+	jalr	t9
+
+	# Load the return value into the appropriate register.
+	move	$8, $2
+	li	$9, FFI_TYPE_VOID
+	beq	$8, $9, closure_done
+
+	li	$13, 1		# FFI_O32
+	bne	$16, $13, 1f	# Skip fp restore if FFI_O32_SOFT_FLOAT
+
+	li	$9, FFI_TYPE_FLOAT
+	l.s	$f0, V0_OFF2($fp)
+	beq	$8, $9, closure_done
+
+	li	$9, FFI_TYPE_DOUBLE
+	l.d	$f0, V0_OFF2($fp)
+	beq	$8, $9, closure_done
+1:	
+	REG_L	$3, V1_OFF2($fp)
+	REG_L	$2, V0_OFF2($fp)
+
+closure_done:
+	# Epilogue
+	move	$sp, $fp
+	REG_L	$16, S0_OFF2($sp)	 # Restore s0
+	REG_L	$fp, FP_OFF2($sp)	 # Restore frame pointer
+	REG_L	ra,  RA_OFF2($sp)	 # Restore return address
+	ADDU	$sp, SIZEOF_FRAME2
+	j	ra
+$LFE1:
+	.end	ffi_closure_O32
+
+/* DWARF-2 unwind info. */
+
+	.section	.eh_frame,"a",@progbits
+$Lframe0:
+	.4byte	$LECIE0-$LSCIE0	 # Length of Common Information Entry
+$LSCIE0:
+	.4byte	0x0	 # CIE Identifier Tag
+	.byte	0x1	 # CIE Version
+	.ascii "zR\0"	 # CIE Augmentation
+	.uleb128 0x1	 # CIE Code Alignment Factor
+	.sleb128 4	 # CIE Data Alignment Factor
+	.byte	0x1f	 # CIE RA Column
+	.uleb128 0x1	 # Augmentation size
+	.byte	0x00	 # FDE Encoding (absptr)
+	.byte	0xc	 # DW_CFA_def_cfa
+	.uleb128 0x1d
+	.uleb128 0x0
+	.align	2
+$LECIE0:
+$LSFDE0:
+	.4byte	$LEFDE0-$LASFDE0	 # FDE Length
+$LASFDE0:
+	.4byte	$LASFDE0-$Lframe0	 # FDE CIE offset
+	.4byte	$LFB0	 # FDE initial location
+	.4byte	$LFE0-$LFB0	 # FDE address range
+	.uleb128 0x0	 # Augmentation size
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI0-$LFB0
+	.byte	0xe	 # DW_CFA_def_cfa_offset
+	.uleb128 0x18
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI2-$LCFI0
+	.byte	0x11	 # DW_CFA_offset_extended_sf
+	.uleb128 0x1e	 # $fp
+	.sleb128 -2	 # SIZEOF_FRAME2 - 2*FFI_SIZEOF_ARG($sp)
+	.byte	0x11	 # DW_CFA_offset_extended_sf
+	.uleb128 0x1f	 # $ra
+	.sleb128 -1	 # SIZEOF_FRAME2 - 1*FFI_SIZEOF_ARG($sp)
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI3-$LCFI2
+	.byte	0xc	 # DW_CFA_def_cfa
+	.uleb128 0x1e
+	.uleb128 0x18
+	.align	2
+$LEFDE0:
+$LSFDE1:
+	.4byte	$LEFDE1-$LASFDE1	 # FDE Length
+$LASFDE1:
+	.4byte	$LASFDE1-$Lframe0	 # FDE CIE offset
+	.4byte	$LFB1	 # FDE initial location
+	.4byte	$LFE1-$LFB1	 # FDE address range
+	.uleb128 0x0	 # Augmentation size
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI4-$LFB1
+	.byte	0xe	 # DW_CFA_def_cfa_offset
+	.uleb128 0x38
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI6-$LCFI4
+	.byte	0x11	 # DW_CFA_offset_extended_sf
+	.uleb128 0x10	 # $16
+	.sleb128 -3	 # SIZEOF_FRAME2 - 3*FFI_SIZEOF_ARG($sp)
+	.byte	0x11	 # DW_CFA_offset_extended_sf
+	.uleb128 0x1e	 # $fp
+	.sleb128 -2	 # SIZEOF_FRAME2 - 2*FFI_SIZEOF_ARG($sp)
+	.byte	0x11	 # DW_CFA_offset_extended_sf
+	.uleb128 0x1f	 # $ra
+	.sleb128 -1	 # SIZEOF_FRAME2 - 1*FFI_SIZEOF_ARG($sp)
+	.byte	0x4	 # DW_CFA_advance_loc4
+	.4byte	$LCFI7-$LCFI6
+	.byte	0xc	 # DW_CFA_def_cfa
+	.uleb128 0x1e
+	.uleb128 0x38
+	.align	2
+$LEFDE1:
+
+#endif