kc3-lang/libffi

diff --git a/src/powerpc/ffi.c.orig b/src/powerpc/ffi.c.orig
deleted file mode 100644
index 53c7e8e..0000000
--- a/src/powerpc/ffi.c.orig
+++ /dev/null
@@ -1,1444 +0,0 @@
-/* -----------------------------------------------------------------------
-   ffi.c - Copyright (C) 2011 Anthony Green
-           Copyright (C) 2011 Kyle Moffett
-           Copyright (C) 2008 Red Hat, Inc
-           Copyright (C) 2007, 2008 Free Software Foundation, Inc
-	   Copyright (c) 1998 Geoffrey Keating
-
-   PowerPC 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 AUTHOR 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>
-#include <stdio.h>
-
-
-extern void ffi_closure_SYSV (void);
-extern void FFI_HIDDEN ffi_closure_LINUX64 (void);
-
-enum {
-  /* The assembly depends on these exact flags.  */
-  FLAG_RETURNS_SMST	= 1 << (31-31), /* Used for FFI_SYSV small structs.  */
-  FLAG_RETURNS_NOTHING  = 1 << (31-30), /* These go in cr7 */
-  FLAG_RETURNS_FP       = 1 << (31-29),
-  FLAG_RETURNS_64BITS   = 1 << (31-28),
-
-  FLAG_RETURNS_128BITS  = 1 << (31-27), /* cr6  */
-
-  FLAG_ARG_NEEDS_COPY   = 1 << (31- 7),
-  FLAG_FP_ARGUMENTS     = 1 << (31- 6), /* cr1.eq; specified by ABI */
-  FLAG_4_GPR_ARGUMENTS  = 1 << (31- 5),
-  FLAG_RETVAL_REFERENCE = 1 << (31- 4)
-};
-
-/* About the SYSV ABI.  */
-unsigned int NUM_GPR_ARG_REGISTERS = 8;
-#ifndef __NO_FPRS__
-unsigned int NUM_FPR_ARG_REGISTERS = 8;
-#else
-unsigned int NUM_FPR_ARG_REGISTERS = 0;
-#endif
-
-enum { ASM_NEEDS_REGISTERS = 4 };
-
-/* ffi_prep_args_SYSV is called by the assembly routine once stack space
-   has been allocated for the function's arguments.
-
-   The stack layout we want looks like this:
-
-   |   Return address from ffi_call_SYSV 4bytes	|	higher addresses
-   |--------------------------------------------|
-   |   Previous backchain pointer	4	|       stack pointer here
-   |--------------------------------------------|<+ <<<	on entry to
-   |   Saved r28-r31			4*4	| |	ffi_call_SYSV
-   |--------------------------------------------| |
-   |   GPR registers r3-r10		8*4	| |	ffi_call_SYSV
-   |--------------------------------------------| |
-   |   FPR registers f1-f8 (optional)	8*8	| |
-   |--------------------------------------------| |	stack	|
-   |   Space for copied structures		| |	grows	|
-   |--------------------------------------------| |	down    V
-   |   Parameters that didn't fit in registers  | |
-   |--------------------------------------------| |	lower addresses
-   |   Space for callee's LR		4	| |
-   |--------------------------------------------| |	stack pointer here
-   |   Current backchain pointer	4	|-/	during
-   |--------------------------------------------|   <<<	ffi_call_SYSV
-
-*/
-
-void
-ffi_prep_args_SYSV (extended_cif *ecif, unsigned *const stack)
-{
-  const unsigned bytes = ecif->cif->bytes;
-  const unsigned flags = ecif->cif->flags;
-
-  typedef union {
-    char *c;
-    unsigned *u;
-    long long *ll;
-    float *f;
-    double *d;
-  } valp;
-
-  /* 'stacktop' points at the previous backchain pointer.  */
-  valp stacktop;
-
-  /* 'gpr_base' points at the space for gpr3, and grows upwards as
-     we use GPR registers.  */
-  valp gpr_base;
-  int intarg_count;
-
-  /* 'fpr_base' points at the space for fpr1, and grows upwards as
-     we use FPR registers.  */
-  valp fpr_base;
-  int fparg_count;
-
-  /* 'copy_space' grows down as we put structures in it.  It should
-     stay 16-byte aligned.  */
-  valp copy_space;
-
-  /* 'next_arg' grows up as we put parameters in it.  */
-  valp next_arg;
-
-  int i, ii MAYBE_UNUSED;
-  ffi_type **ptr;
-  double double_tmp;
-  union {
-    void **v;
-    char **c;
-    signed char **sc;
-    unsigned char **uc;
-    signed short **ss;
-    unsigned short **us;
-    unsigned int **ui;
-    long long **ll;
-    float **f;
-    double **d;
-  } p_argv;
-  size_t struct_copy_size;
-  unsigned gprvalue;
-
-  if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
-    NUM_FPR_ARG_REGISTERS = 0;
-
-  stacktop.c = (char *) stack + bytes;
-  gpr_base.u = stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS;
-  intarg_count = 0;
-  fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS;
-  fparg_count = 0;
-  copy_space.c = ((flags & FLAG_FP_ARGUMENTS) ? fpr_base.c : gpr_base.c);
-  next_arg.u = stack + 2;
-
-  /* Check that everything starts aligned properly.  */
-  FFI_ASSERT (((unsigned) (char *) stack & 0xF) == 0);
-  FFI_ASSERT (((unsigned) copy_space.c & 0xF) == 0);
-  FFI_ASSERT (((unsigned) stacktop.c & 0xF) == 0);
-  FFI_ASSERT ((bytes & 0xF) == 0);
-  FFI_ASSERT (copy_space.c >= next_arg.c);
-
-  /* Deal with return values that are actually pass-by-reference.  */
-  if (flags & FLAG_RETVAL_REFERENCE)
-    {
-      *gpr_base.u++ = (unsigned long) (char *) ecif->rvalue;
-      intarg_count++;
-    }
-
-  /* Now for the arguments.  */
-  p_argv.v = ecif->avalue;
-  for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
-       i > 0;
-       i--, ptr++, p_argv.v++)
-    {
-      switch ((*ptr)->type)
-	{
-	case FFI_TYPE_FLOAT:
-	  /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32.  */
-	  if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    goto soft_float_prep;
-	  double_tmp = **p_argv.f;
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    {
-	      *next_arg.f = (float) double_tmp;
-	      next_arg.u += 1;
-	      intarg_count++;
-	    }
-	  else
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	  break;
-
-	case FFI_TYPE_DOUBLE:
-	  /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64.  */
-	  if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    goto soft_double_prep;
-	  double_tmp = **p_argv.d;
-
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    {
-	      if (intarg_count >= NUM_GPR_ARG_REGISTERS
-		  && intarg_count % 2 != 0)
-		{
-		  intarg_count++;
-		  next_arg.u++;
-		}
-	      *next_arg.d = double_tmp;
-	      next_arg.u += 2;
-	    }
-	  else
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	  break;
-
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	case FFI_TYPE_LONGDOUBLE:
-	  if ((ecif->cif->abi != FFI_LINUX)
-		&& (ecif->cif->abi != FFI_LINUX_SOFT_FLOAT))
-	    goto do_struct;
-	  /* The soft float ABI for long doubles works like this,
-	     a long double is passed in four consecutive gprs if available.
-	     A maximum of 2 long doubles can be passed in gprs.
-	     If we do not have 4 gprs left, the long double is passed on the
-	     stack, 4-byte aligned.  */
-	  if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    {
-	      unsigned int int_tmp = (*p_argv.ui)[0];
-	      if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3)
-		{
-		  if (intarg_count < NUM_GPR_ARG_REGISTERS)
-		    intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
-		  *next_arg.u = int_tmp;
-		  next_arg.u++;
-		  for (ii = 1; ii < 4; ii++)
-		    {
-		      int_tmp = (*p_argv.ui)[ii];
-		      *next_arg.u = int_tmp;
-		      next_arg.u++;
-		    }
-		}
-	      else
-		{
-		  *gpr_base.u++ = int_tmp;
-		  for (ii = 1; ii < 4; ii++)
-		    {
-		      int_tmp = (*p_argv.ui)[ii];
-		      *gpr_base.u++ = int_tmp;
-		    }
-		}
-	      intarg_count +=4;
-	    }
-	  else
-	    {
-	      double_tmp = (*p_argv.d)[0];
-
-	      if (fparg_count >= NUM_FPR_ARG_REGISTERS - 1)
-		{
-		  if (intarg_count >= NUM_GPR_ARG_REGISTERS
-		      && intarg_count % 2 != 0)
-		    {
-		      intarg_count++;
-		      next_arg.u++;
-		    }
-		  *next_arg.d = double_tmp;
-		  next_arg.u += 2;
-		  double_tmp = (*p_argv.d)[1];
-		  *next_arg.d = double_tmp;
-		  next_arg.u += 2;
-		}
-	      else
-		{
-		  *fpr_base.d++ = double_tmp;
-		  double_tmp = (*p_argv.d)[1];
-		  *fpr_base.d++ = double_tmp;
-		}
-
-	      fparg_count += 2;
-	      FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	    }
-	  break;
-#endif
-
-	case FFI_TYPE_UINT64:
-	case FFI_TYPE_SINT64:
-	soft_double_prep:
-	  if (intarg_count == NUM_GPR_ARG_REGISTERS-1)
-	    intarg_count++;
-	  if (intarg_count >= NUM_GPR_ARG_REGISTERS)
-	    {
-	      if (intarg_count % 2 != 0)
-		{
-		  intarg_count++;
-		  next_arg.u++;
-		}
-	      *next_arg.ll = **p_argv.ll;
-	      next_arg.u += 2;
-	    }
-	  else
-	    {
-	      /* whoops: abi states only certain register pairs
-	       * can be used for passing long long int
-	       * specifically (r3,r4), (r5,r6), (r7,r8),
-	       * (r9,r10) and if next arg is long long but
-	       * not correct starting register of pair then skip
-	       * until the proper starting register
-	       */
-	      if (intarg_count % 2 != 0)
-		{
-		  intarg_count ++;
-		  gpr_base.u++;
-		}
-	      *gpr_base.ll++ = **p_argv.ll;
-	    }
-	  intarg_count += 2;
-	  break;
-
-	case FFI_TYPE_STRUCT:
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	do_struct:
-#endif
-	  struct_copy_size = ((*ptr)->size + 15) & ~0xF;
-	  copy_space.c -= struct_copy_size;
-	  memcpy (copy_space.c, *p_argv.c, (*ptr)->size);
-
-	  gprvalue = (unsigned long) copy_space.c;
-
-	  FFI_ASSERT (copy_space.c > next_arg.c);
-	  FFI_ASSERT (flags & FLAG_ARG_NEEDS_COPY);
-	  goto putgpr;
-
-	case FFI_TYPE_UINT8:
-	  gprvalue = **p_argv.uc;
-	  goto putgpr;
-	case FFI_TYPE_SINT8:
-	  gprvalue = **p_argv.sc;
-	  goto putgpr;
-	case FFI_TYPE_UINT16:
-	  gprvalue = **p_argv.us;
-	  goto putgpr;
-	case FFI_TYPE_SINT16:
-	  gprvalue = **p_argv.ss;
-	  goto putgpr;
-
-	case FFI_TYPE_INT:
-	case FFI_TYPE_UINT32:
-	case FFI_TYPE_SINT32:
-	case FFI_TYPE_POINTER:
-	soft_float_prep:
-
-	  gprvalue = **p_argv.ui;
-
-	putgpr:
-	  if (intarg_count >= NUM_GPR_ARG_REGISTERS)
-	    *next_arg.u++ = gprvalue;
-	  else
-	    *gpr_base.u++ = gprvalue;
-	  intarg_count++;
-	  break;
-	}
-    }
-
-  /* Check that we didn't overrun the stack...  */
-  FFI_ASSERT (copy_space.c >= next_arg.c);
-  FFI_ASSERT (gpr_base.u <= stacktop.u - ASM_NEEDS_REGISTERS);
-  FFI_ASSERT (fpr_base.u
-	      <= stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
-  FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS || intarg_count <= 4);
-}
-
-/* About the LINUX64 ABI.  */
-enum {
-  NUM_GPR_ARG_REGISTERS64 = 8,
-  NUM_FPR_ARG_REGISTERS64 = 13
-};
-enum { ASM_NEEDS_REGISTERS64 = 4 };
-
-/* ffi_prep_args64 is called by the assembly routine once stack space
-   has been allocated for the function's arguments.
-
-   The stack layout we want looks like this:
-
-   |   Ret addr from ffi_call_LINUX64	8bytes	|	higher addresses
-   |--------------------------------------------|
-   |   CR save area			8bytes	|
-   |--------------------------------------------|
-   |   Previous backchain pointer	8	|	stack pointer here
-   |--------------------------------------------|<+ <<<	on entry to
-   |   Saved r28-r31			4*8	| |	ffi_call_LINUX64
-   |--------------------------------------------| |
-   |   GPR registers r3-r10		8*8	| |
-   |--------------------------------------------| |
-   |   FPR registers f1-f13 (optional)	13*8	| |
-   |--------------------------------------------| |
-   |   Parameter save area		        | |
-   |--------------------------------------------| |
-   |   TOC save area			8	| |
-   |--------------------------------------------| |	stack	|
-   |   Linker doubleword		8	| |	grows	|
-   |--------------------------------------------| |	down	V
-   |   Compiler doubleword		8	| |
-   |--------------------------------------------| |	lower addresses
-   |   Space for callee's LR		8	| |
-   |--------------------------------------------| |
-   |   CR save area			8	| |
-   |--------------------------------------------| |	stack pointer here
-   |   Current backchain pointer	8	|-/	during
-   |--------------------------------------------|   <<<	ffi_call_LINUX64
-
-*/
-
-void FFI_HIDDEN
-ffi_prep_args64 (extended_cif *ecif, unsigned long *const stack)
-{
-  const unsigned long bytes = ecif->cif->bytes;
-  const unsigned long flags = ecif->cif->flags;
-
-  typedef union {
-    char *c;
-    unsigned long *ul;
-    float *f;
-    double *d;
-  } valp;
-
-  /* 'stacktop' points at the previous backchain pointer.  */
-  valp stacktop;
-
-  /* 'next_arg' points at the space for gpr3, and grows upwards as
-     we use GPR registers, then continues at rest.  */
-  valp gpr_base;
-  valp gpr_end;
-  valp rest;
-  valp next_arg;
-
-  /* 'fpr_base' points at the space for fpr3, and grows upwards as
-     we use FPR registers.  */
-  valp fpr_base;
-  int fparg_count;
-
-  int i, words;
-  ffi_type **ptr;
-  double double_tmp;
-  union {
-    void **v;
-    char **c;
-    signed char **sc;
-    unsigned char **uc;
-    signed short **ss;
-    unsigned short **us;
-    signed int **si;
-    unsigned int **ui;
-    unsigned long **ul;
-    float **f;
-    double **d;
-  } p_argv;
-  unsigned long gprvalue;
-
-  stacktop.c = (char *) stack + bytes;
-  gpr_base.ul = stacktop.ul - ASM_NEEDS_REGISTERS64 - NUM_GPR_ARG_REGISTERS64;
-  gpr_end.ul = gpr_base.ul + NUM_GPR_ARG_REGISTERS64;
-  rest.ul = stack + 6 + NUM_GPR_ARG_REGISTERS64;
-  fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS64;
-  fparg_count = 0;
-  next_arg.ul = gpr_base.ul;
-
-  /* Check that everything starts aligned properly.  */
-  FFI_ASSERT (((unsigned long) (char *) stack & 0xF) == 0);
-  FFI_ASSERT (((unsigned long) stacktop.c & 0xF) == 0);
-  FFI_ASSERT ((bytes & 0xF) == 0);
-
-  /* Deal with return values that are actually pass-by-reference.  */
-  if (flags & FLAG_RETVAL_REFERENCE)
-    *next_arg.ul++ = (unsigned long) (char *) ecif->rvalue;
-
-  /* Now for the arguments.  */
-  p_argv.v = ecif->avalue;
-  for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
-       i > 0;
-       i--, ptr++, p_argv.v++)
-    {
-      switch ((*ptr)->type)
-	{
-	case FFI_TYPE_FLOAT:
-	  double_tmp = **p_argv.f;
-	  *next_arg.f = (float) double_tmp;
-	  if (++next_arg.ul == gpr_end.ul)
-	    next_arg.ul = rest.ul;
-	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	  break;
-
-	case FFI_TYPE_DOUBLE:
-	  double_tmp = **p_argv.d;
-	  *next_arg.d = double_tmp;
-	  if (++next_arg.ul == gpr_end.ul)
-	    next_arg.ul = rest.ul;
-	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	  break;
-
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	case FFI_TYPE_LONGDOUBLE:
-	  double_tmp = (*p_argv.d)[0];
-	  *next_arg.d = double_tmp;
-	  if (++next_arg.ul == gpr_end.ul)
-	    next_arg.ul = rest.ul;
-	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  double_tmp = (*p_argv.d)[1];
-	  *next_arg.d = double_tmp;
-	  if (++next_arg.ul == gpr_end.ul)
-	    next_arg.ul = rest.ul;
-	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
-	    *fpr_base.d++ = double_tmp;
-	  fparg_count++;
-	  FFI_ASSERT (__LDBL_MANT_DIG__ == 106);
-	  FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
-	  break;
-#endif
-
-	case FFI_TYPE_STRUCT:
-	  words = ((*ptr)->size + 7) / 8;
-	  if (next_arg.ul >= gpr_base.ul && next_arg.ul + words > gpr_end.ul)
-	    {
-	      size_t first = gpr_end.c - next_arg.c;
-	      memcpy (next_arg.c, *p_argv.c, first);
-	      memcpy (rest.c, *p_argv.c + first, (*ptr)->size - first);
-	      next_arg.c = rest.c + words * 8 - first;
-	    }
-	  else
-	    {
-	      char *where = next_arg.c;
-
-	      /* Structures with size less than eight bytes are passed
-		 left-padded.  */
-	      if ((*ptr)->size < 8)
-		where += 8 - (*ptr)->size;
-
-	      memcpy (where, *p_argv.c, (*ptr)->size);
-	      next_arg.ul += words;
-	      if (next_arg.ul == gpr_end.ul)
-		next_arg.ul = rest.ul;
-	    }
-	  break;
-
-	case FFI_TYPE_UINT8:
-	  gprvalue = **p_argv.uc;
-	  goto putgpr;
-	case FFI_TYPE_SINT8:
-	  gprvalue = **p_argv.sc;
-	  goto putgpr;
-	case FFI_TYPE_UINT16:
-	  gprvalue = **p_argv.us;
-	  goto putgpr;
-	case FFI_TYPE_SINT16:
-	  gprvalue = **p_argv.ss;
-	  goto putgpr;
-	case FFI_TYPE_UINT32:
-	  gprvalue = **p_argv.ui;
-	  goto putgpr;
-	case FFI_TYPE_INT:
-	case FFI_TYPE_SINT32:
-	  gprvalue = **p_argv.si;
-	  goto putgpr;
-
-	case FFI_TYPE_UINT64:
-	case FFI_TYPE_SINT64:
-	case FFI_TYPE_POINTER:
-	  gprvalue = **p_argv.ul;
-	putgpr:
-	  *next_arg.ul++ = gprvalue;
-	  if (next_arg.ul == gpr_end.ul)
-	    next_arg.ul = rest.ul;
-	  break;
-	}
-    }
-
-  FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS
-	      || (next_arg.ul >= gpr_base.ul
-		  && next_arg.ul <= gpr_base.ul + 4));
-}
-
-
-
-/* Perform machine dependent cif processing */
-ffi_status
-ffi_prep_cif_machdep (ffi_cif *cif)
-{
-  /* All this is for the SYSV and LINUX64 ABI.  */
-  int i;
-  ffi_type **ptr;
-  unsigned bytes;
-  int fparg_count = 0, intarg_count = 0;
-  unsigned flags = 0;
-  unsigned struct_copy_size = 0;
-  unsigned type = cif->rtype->type;
-  unsigned size = cif->rtype->size;
-
-  if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-    NUM_FPR_ARG_REGISTERS = 0;
-
-  if (cif->abi != FFI_LINUX64)
-    {
-      /* All the machine-independent calculation of cif->bytes will be wrong.
-	 Redo the calculation for SYSV.  */
-
-      /* Space for the frame pointer, callee's LR, and the asm's temp regs.  */
-      bytes = (2 + ASM_NEEDS_REGISTERS) * sizeof (int);
-
-      /* Space for the GPR registers.  */
-      bytes += NUM_GPR_ARG_REGISTERS * sizeof (int);
-    }
-  else
-    {
-      /* 64-bit ABI.  */
-
-      /* Space for backchain, CR, LR, cc/ld doubleword, TOC and the asm's temp
-	 regs.  */
-      bytes = (6 + ASM_NEEDS_REGISTERS64) * sizeof (long);
-
-      /* Space for the mandatory parm save area and general registers.  */
-      bytes += 2 * NUM_GPR_ARG_REGISTERS64 * sizeof (long);
-    }
-
-  /* Return value handling.  The rules for SYSV are as follows:
-     - 32-bit (or less) integer values are returned in gpr3;
-     - Structures of size <= 4 bytes also returned in gpr3;
-     - 64-bit integer values and structures between 5 and 8 bytes are returned
-     in gpr3 and gpr4;
-     - Single/double FP values are returned in fpr1;
-     - Larger structures are allocated space and a pointer is passed as
-     the first argument.
-     - long doubles (if not equivalent to double) are returned in
-     fpr1,fpr2 for Linux and as for large structs for SysV.
-     For LINUX64:
-     - integer values in gpr3;
-     - Structures/Unions by reference;
-     - Single/double FP values in fpr1, long double in fpr1,fpr2.
-     - soft-float float/doubles are treated as UINT32/UINT64 respectivley.
-     - soft-float long doubles are returned in gpr3-gpr6.  */
-  switch (type)
-    {
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-    case FFI_TYPE_LONGDOUBLE:
-      if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64
-	&& cif->abi != FFI_LINUX_SOFT_FLOAT)
-	goto byref;
-      flags |= FLAG_RETURNS_128BITS;
-      /* Fall through.  */
-#endif
-    case FFI_TYPE_DOUBLE:
-      flags |= FLAG_RETURNS_64BITS;
-      /* Fall through.  */
-    case FFI_TYPE_FLOAT:
-      /* With FFI_LINUX_SOFT_FLOAT no fp registers are used.  */
-      if (cif->abi != FFI_LINUX_SOFT_FLOAT)
-	flags |= FLAG_RETURNS_FP;
-      break;
-
-    case FFI_TYPE_UINT64:
-    case FFI_TYPE_SINT64:
-      flags |= FLAG_RETURNS_64BITS;
-      break;
-
-    case FFI_TYPE_STRUCT:
-      /*
-       * The final SYSV ABI says that structures smaller or equal 8 bytes
-       * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
-       * in memory.
-       *
-       * NOTE: The assembly code can safely assume that it just needs to
-       *       store both r3 and r4 into a 8-byte word-aligned buffer, as
-       *       we allocate a temporary buffer in ffi_call() if this flag is
-       *       set.
-       */
-      if (cif->abi == FFI_SYSV && size <= 8)
-	flags |= FLAG_RETURNS_SMST;
-      
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-    byref:
-#endif
-      intarg_count++;
-      flags |= FLAG_RETVAL_REFERENCE;
-      /* Fall through.  */
-    case FFI_TYPE_VOID:
-      flags |= FLAG_RETURNS_NOTHING;
-      break;
-
-    default:
-      /* Returns 32-bit integer, or similar.  Nothing to do here.  */
-      break;
-    }
-
-  if (cif->abi != FFI_LINUX64)
-    /* The first NUM_GPR_ARG_REGISTERS words of integer arguments, and the
-       first NUM_FPR_ARG_REGISTERS fp arguments, go in registers; the rest
-       goes on the stack.  Structures and long doubles (if not equivalent
-       to double) are passed as a pointer to a copy of the structure.
-       Stuff on the stack needs to keep proper alignment.  */
-    for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
-      {
-	switch ((*ptr)->type)
-	  {
-	  case FFI_TYPE_FLOAT:
-	    /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32.  */
-	    if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	      goto soft_float_cif;
-	    fparg_count++;
-	    /* floating singles are not 8-aligned on stack */
-	    break;
-
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	  case FFI_TYPE_LONGDOUBLE:
-	    if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
-	      goto do_struct;
-	    if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	      {
-		if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3
-		  || intarg_count < NUM_GPR_ARG_REGISTERS)
-		  /* A long double in FFI_LINUX_SOFT_FLOAT can use only
-		     a set of four consecutive gprs. If we have not enough,
-		     we have to adjust the intarg_count value.  */
-		  intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
-		intarg_count += 4;
-		break;
-	      }
-	    else
-	      fparg_count++;
-	    /* Fall thru */
-#endif
-	  case FFI_TYPE_DOUBLE:
-	    /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64.  */
-	    if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	      goto soft_double_cif;
-	    fparg_count++;
-	    /* If this FP arg is going on the stack, it must be
-	       8-byte-aligned.  */
-	    if (fparg_count > NUM_FPR_ARG_REGISTERS
-		&& intarg_count >= NUM_GPR_ARG_REGISTERS
-		&& intarg_count % 2 != 0)
-	      intarg_count++;
-	    break;
-
-	  case FFI_TYPE_UINT64:
-	  case FFI_TYPE_SINT64:
-	  soft_double_cif:
-	    /* 'long long' arguments are passed as two words, but
-	       either both words must fit in registers or both go
-	       on the stack.  If they go on the stack, they must
-	       be 8-byte-aligned.
-
-	       Also, only certain register pairs can be used for
-	       passing long long int -- specifically (r3,r4), (r5,r6),
-	       (r7,r8), (r9,r10).
-	    */
-	    if (intarg_count == NUM_GPR_ARG_REGISTERS-1
-		|| intarg_count % 2 != 0)
-	      intarg_count++;
-	    intarg_count += 2;
-	    break;
-
-	  case FFI_TYPE_STRUCT:
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	  do_struct:
-#endif
-	    /* We must allocate space for a copy of these to enforce
-	       pass-by-value.  Pad the space up to a multiple of 16
-	       bytes (the maximum alignment required for anything under
-	       the SYSV ABI).  */
-	    struct_copy_size += ((*ptr)->size + 15) & ~0xF;
-	    /* Fall through (allocate space for the pointer).  */
-
-	  default:
-	  soft_float_cif:
-	    /* Everything else is passed as a 4-byte word in a GPR, either
-	       the object itself or a pointer to it.  */
-	    intarg_count++;
-	    break;
-	  }
-      }
-  else
-    for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
-      {
-	switch ((*ptr)->type)
-	  {
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	  case FFI_TYPE_LONGDOUBLE:
-	    if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	      intarg_count += 4;
-	    else
-	      {
-		fparg_count += 2;
-		intarg_count += 2;
-	      }
-	    break;
-#endif
-	  case FFI_TYPE_FLOAT:
-	  case FFI_TYPE_DOUBLE:
-	    fparg_count++;
-	    intarg_count++;
-	    break;
-
-	  case FFI_TYPE_STRUCT:
-	    intarg_count += ((*ptr)->size + 7) / 8;
-	    break;
-
-	  default:
-	    /* Everything else is passed as a 8-byte word in a GPR, either
-	       the object itself or a pointer to it.  */
-	    intarg_count++;
-	    break;
-	  }
-      }
-
-  if (fparg_count != 0)
-    flags |= FLAG_FP_ARGUMENTS;
-  if (intarg_count > 4)
-    flags |= FLAG_4_GPR_ARGUMENTS;
-  if (struct_copy_size != 0)
-    flags |= FLAG_ARG_NEEDS_COPY;
-
-  if (cif->abi != FFI_LINUX64)
-    {
-      /* Space for the FPR registers, if needed.  */
-      if (fparg_count != 0)
-	bytes += NUM_FPR_ARG_REGISTERS * sizeof (double);
-
-      /* Stack space.  */
-      if (intarg_count > NUM_GPR_ARG_REGISTERS)
-	bytes += (intarg_count - NUM_GPR_ARG_REGISTERS) * sizeof (int);
-      if (fparg_count > NUM_FPR_ARG_REGISTERS)
-	bytes += (fparg_count - NUM_FPR_ARG_REGISTERS) * sizeof (double);
-    }
-  else
-    {
-      /* Space for the FPR registers, if needed.  */
-      if (fparg_count != 0)
-	bytes += NUM_FPR_ARG_REGISTERS64 * sizeof (double);
-
-      /* Stack space.  */
-      if (intarg_count > NUM_GPR_ARG_REGISTERS64)
-	bytes += (intarg_count - NUM_GPR_ARG_REGISTERS64) * sizeof (long);
-    }
-
-  /* The stack space allocated needs to be a multiple of 16 bytes.  */
-  bytes = (bytes + 15) & ~0xF;
-
-  /* Add in the space for the copied structures.  */
-  bytes += struct_copy_size;
-
-  cif->flags = flags;
-  cif->bytes = bytes;
-
-  return FFI_OK;
-}
-
-extern void ffi_call_SYSV(extended_cif *, unsigned, unsigned, unsigned *,
-			  void (*fn)(void));
-extern void FFI_HIDDEN ffi_call_LINUX64(extended_cif *, unsigned long,
-					unsigned long, unsigned long *,
-					void (*fn)(void));
-
-void
-ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
-{
-  /*
-   * The final SYSV ABI says that structures smaller or equal 8 bytes
-   * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
-   * in memory.
-   *
-   * Just to keep things simple for the assembly code, we will always
-   * bounce-buffer struct return values less than or equal to 8 bytes.
-   * This allows the ASM to handle SYSV small structures by directly
-   * writing r3 and r4 to memory without worrying about struct size.
-   */
-  unsigned int smst_buffer[2];
-  extended_cif ecif;
-  unsigned int rsize;
-
-  ecif.cif = cif;
-  ecif.avalue = avalue;
-
-  /* Ensure that we have a valid struct return value */
-  ecif.rvalue = rvalue;
-  if (cif->rtype->type == FFI_TYPE_STRUCT) {
-    rsize = cif->rtype->size;
-    if (rsize <= 8)
-      ecif.rvalue = smst_buffer;
-    else if (!rvalue)
-      ecif.rvalue = alloca(rsize);
-  }
-
-  switch (cif->abi)
-    {
-#ifndef POWERPC64
-    case FFI_SYSV:
-    case FFI_GCC_SYSV:
-    case FFI_LINUX:
-    case FFI_LINUX_SOFT_FLOAT:
-      ffi_call_SYSV (&ecif, -cif->bytes, cif->flags, ecif.rvalue, fn);
-      break;
-#else
-    case FFI_LINUX64:
-      ffi_call_LINUX64 (&ecif, -(long) cif->bytes, cif->flags, ecif.rvalue, fn);
-      break;
-#endif
-    default:
-      FFI_ASSERT (0);
-      break;
-    }
-
-  /* Check for a bounce-buffered return value */
-  if (rvalue && ecif.rvalue == smst_buffer)
-    memcpy(rvalue, smst_buffer, rsize);
-}
-
-
-#ifndef POWERPC64
-#define MIN_CACHE_LINE_SIZE 8
-
-static void
-flush_icache (char *wraddr, char *xaddr, int size)
-{
-  int i;
-  for (i = 0; i < size; i += MIN_CACHE_LINE_SIZE)
-    __asm__ volatile ("icbi 0,%0;" "dcbf 0,%1;"
-		      : : "r" (xaddr + i), "r" (wraddr + i) : "memory");
-  __asm__ volatile ("icbi 0,%0;" "dcbf 0,%1;" "sync;" "isync;"
-		    : : "r"(xaddr + size - 1), "r"(wraddr + size - 1)
-		    : "memory");
-}
-#endif
-
-ffi_status
-ffi_prep_closure_loc (ffi_closure *closure,
-		      ffi_cif *cif,
-		      void (*fun) (ffi_cif *, void *, void **, void *),
-		      void *user_data,
-		      void *codeloc)
-{
-#ifdef POWERPC64
-  void **tramp = (void **) &closure->tramp[0];
-
-  if (cif->abi != FFI_LINUX64)
-    return FFI_BAD_ABI;
-  /* Copy function address and TOC from ffi_closure_LINUX64.  */
-  memcpy (tramp, (char *) ffi_closure_LINUX64, 16);
-  tramp[2] = codeloc;
-#else
-  unsigned int *tramp;
-
-  if (! (cif->abi == FFI_GCC_SYSV 
-	 || cif->abi == FFI_SYSV
-	 || cif->abi == FFI_LINUX
-	 || cif->abi == FFI_LINUX_SOFT_FLOAT))
-    return FFI_BAD_ABI;
-
-  tramp = (unsigned int *) &closure->tramp[0];
-  tramp[0] = 0x7c0802a6;  /*   mflr    r0 */
-  tramp[1] = 0x4800000d;  /*   bl      10 <trampoline_initial+0x10> */
-  tramp[4] = 0x7d6802a6;  /*   mflr    r11 */
-  tramp[5] = 0x7c0803a6;  /*   mtlr    r0 */
-  tramp[6] = 0x800b0000;  /*   lwz     r0,0(r11) */
-  tramp[7] = 0x816b0004;  /*   lwz     r11,4(r11) */
-  tramp[8] = 0x7c0903a6;  /*   mtctr   r0 */
-  tramp[9] = 0x4e800420;  /*   bctr */
-  *(void **) &tramp[2] = (void *) ffi_closure_SYSV; /* function */
-  *(void **) &tramp[3] = codeloc;                   /* context */
-
-  /* Flush the icache.  */
-  flush_icache ((char *)tramp, (char *)codeloc, FFI_TRAMPOLINE_SIZE);
-#endif
-
-  closure->cif = cif;
-  closure->fun = fun;
-  closure->user_data = user_data;
-
-  return FFI_OK;
-}
-
-typedef union
-{
-  float f;
-  double d;
-} ffi_dblfl;
-
-int ffi_closure_helper_SYSV (ffi_closure *, void *, unsigned long *,
-			     ffi_dblfl *, unsigned long *);
-
-/* Basically the trampoline invokes ffi_closure_SYSV, and on
- * entry, r11 holds the address of the closure.
- * After storing the registers that could possibly contain
- * parameters to be passed into the stack frame and setting
- * up space for a return value, ffi_closure_SYSV invokes the
- * following helper function to do most of the work
- */
-
-int
-ffi_closure_helper_SYSV (ffi_closure *closure, void *rvalue,
-			 unsigned long *pgr, ffi_dblfl *pfr,
-			 unsigned long *pst)
-{
-  /* rvalue is the pointer to space for return value in closure assembly */
-  /* pgr is the pointer to where r3-r10 are stored in ffi_closure_SYSV */
-  /* pfr is the pointer to where f1-f8 are stored in ffi_closure_SYSV  */
-  /* pst is the pointer to outgoing parameter stack in original caller */
-
-  void **          avalue;
-  ffi_type **      arg_types;
-  long             i, avn;
-  long             nf;   /* number of floating registers already used */
-  long             ng;   /* number of general registers already used */
-  ffi_cif *        cif;
-  double           temp;
-  unsigned         size;
-
-  cif = closure->cif;
-  avalue = alloca (cif->nargs * sizeof (void *));
-  size = cif->rtype->size;
-
-  nf = 0;
-  ng = 0;
-
-  /* Copy the caller's structure return value address so that the closure
-     returns the data directly to the caller.
-     For FFI_SYSV the result is passed in r3/r4 if the struct size is less
-     or equal 8 bytes.  */
-
-  if ((cif->rtype->type == FFI_TYPE_STRUCT
-       && !((cif->abi == FFI_SYSV) && (size <= 8)))
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-      || (cif->rtype->type == FFI_TYPE_LONGDOUBLE
-	  && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
-#endif
-      )
-    {
-      rvalue = (void *) *pgr;
-      ng++;
-      pgr++;
-    }
-
-  i = 0;
-  avn = cif->nargs;
-  arg_types = cif->arg_types;
-
-  /* Grab the addresses of the arguments from the stack frame.  */
-  while (i < avn)
-    {
-      switch (arg_types[i]->type)
-	{
-	case FFI_TYPE_SINT8:
-	case FFI_TYPE_UINT8:
-	  /* there are 8 gpr registers used to pass values */
-	  if (ng < 8)
-	    {
-	      avalue[i] = (char *) pgr + 3;
-	      ng++;
-	      pgr++;
-	    }
-	  else
-	    {
-	      avalue[i] = (char *) pst + 3;
-	      pst++;
-	    }
-	  break;
-
-	case FFI_TYPE_SINT16:
-	case FFI_TYPE_UINT16:
-	  /* there are 8 gpr registers used to pass values */
-	  if (ng < 8)
-	    {
-	      avalue[i] = (char *) pgr + 2;
-	      ng++;
-	      pgr++;
-	    }
-	  else
-	    {
-	      avalue[i] = (char *) pst + 2;
-	      pst++;
-	    }
-	  break;
-
-	case FFI_TYPE_SINT32:
-	case FFI_TYPE_UINT32:
-	case FFI_TYPE_POINTER:
-	soft_float_closure:
-	  /* there are 8 gpr registers used to pass values */
-	  if (ng < 8)
-	    {
-	      avalue[i] = pgr;
-	      ng++;
-	      pgr++;
-	    }
-	  else
-	    {
-	      avalue[i] = pst;
-	      pst++;
-	    }
-	  break;
-
-	case FFI_TYPE_STRUCT:
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	do_struct:
-#endif
-	  /* Structs are passed by reference. The address will appear in a
-	     gpr if it is one of the first 8 arguments.  */
-	  if (ng < 8)
-	    {
-	      avalue[i] = (void *) *pgr;
-	      ng++;
-	      pgr++;
-	    }
-	  else
-	    {
-	      avalue[i] = (void *) *pst;
-	      pst++;
-	    }
-	  break;
-
-	case FFI_TYPE_SINT64:
-	case FFI_TYPE_UINT64:
-	soft_double_closure:
-	  /* passing long long ints are complex, they must
-	   * be passed in suitable register pairs such as
-	   * (r3,r4) or (r5,r6) or (r6,r7), or (r7,r8) or (r9,r10)
-	   * and if the entire pair aren't available then the outgoing
-	   * parameter stack is used for both but an alignment of 8
-	   * must will be kept.  So we must either look in pgr
-	   * or pst to find the correct address for this type
-	   * of parameter.
-	   */
-	  if (ng < 7)
-	    {
-	      if (ng & 0x01)
-		{
-		  /* skip r4, r6, r8 as starting points */
-		  ng++;
-		  pgr++;
-		}
-	      avalue[i] = pgr;
-	      ng += 2;
-	      pgr += 2;
-	    }
-	  else
-	    {
-	      if (((long) pst) & 4)
-		pst++;
-	      avalue[i] = pst;
-	      pst += 2;
-	      ng = 8;
-	    }
-	  break;
-
-	case FFI_TYPE_FLOAT:
-	  /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32.  */
-	  if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    goto soft_float_closure;
-	  /* unfortunately float values are stored as doubles
-	   * in the ffi_closure_SYSV code (since we don't check
-	   * the type in that routine).
-	   */
-
-	  /* there are 8 64bit floating point registers */
-
-	  if (nf < 8)
-	    {
-	      temp = pfr->d;
-	      pfr->f = (float) temp;
-	      avalue[i] = pfr;
-	      nf++;
-	      pfr++;
-	    }
-	  else
-	    {
-	      /* FIXME? here we are really changing the values
-	       * stored in the original calling routines outgoing
-	       * parameter stack.  This is probably a really
-	       * naughty thing to do but...
-	       */
-	      avalue[i] = pst;
-	      pst += 1;
-	    }
-	  break;
-
-	case FFI_TYPE_DOUBLE:
-	  /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64.  */
-	  if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    goto soft_double_closure;
-	  /* On the outgoing stack all values are aligned to 8 */
-	  /* there are 8 64bit floating point registers */
-
-	  if (nf < 8)
-	    {
-	      avalue[i] = pfr;
-	      nf++;
-	      pfr++;
-	    }
-	  else
-	    {
-	      if (((long) pst) & 4)
-		pst++;
-	      avalue[i] = pst;
-	      pst += 2;
-	    }
-	  break;
-
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	case FFI_TYPE_LONGDOUBLE:
-	  if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
-	    goto do_struct;
-	  if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-	    { /* Test if for the whole long double, 4 gprs are available.
-		 otherwise the stuff ends up on the stack.  */
-	      if (ng < 5)
-		{
-		  avalue[i] = pgr;
-		  pgr += 4;
-		  ng += 4;
-		}
-	      else
-		{
-		  avalue[i] = pst;
-		  pst += 4;
-		  ng = 8;
-		}
-	      break;
-	    }
-	  if (nf < 7)
-	    {
-	      avalue[i] = pfr;
-	      pfr += 2;
-	      nf += 2;
-	    }
-	  else
-	    {
-	      if (((long) pst) & 4)
-		pst++;
-	      avalue[i] = pst;
-	      pst += 4;
-	      nf = 8;
-	    }
-	  break;
-#endif
-
-	default:
-	  FFI_ASSERT (0);
-	}
-
-      i++;
-    }
-
-
-  (closure->fun) (cif, rvalue, avalue, closure->user_data);
-
-  /* Tell ffi_closure_SYSV how to perform return type promotions.
-     Because the FFI_SYSV ABI returns the structures <= 8 bytes in r3/r4
-     we have to tell ffi_closure_SYSV how to treat them. We combine the base
-     type FFI_SYSV_TYPE_SMALL_STRUCT - 1  with the size of the struct.
-     So a one byte struct gets the return type 16. Return type 1 to 15 are
-     already used and we never have a struct with size zero. That is the reason
-     for the subtraction of 1. See the comment in ffitarget.h about ordering.
-  */
-  if (cif->abi == FFI_SYSV && cif->rtype->type == FFI_TYPE_STRUCT
-      && size <= 8)
-    return (FFI_SYSV_TYPE_SMALL_STRUCT - 1) + size;
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-  else if (cif->rtype->type == FFI_TYPE_LONGDOUBLE
-	   && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
-    return FFI_TYPE_STRUCT;
-#endif
-  /* With FFI_LINUX_SOFT_FLOAT floats and doubles are handled like UINT32
-     respectivley UINT64.  */
-  if (cif->abi == FFI_LINUX_SOFT_FLOAT)
-    {
-      switch (cif->rtype->type)
-	{
-	case FFI_TYPE_FLOAT:
-	  return FFI_TYPE_UINT32;
-	  break;
-	case FFI_TYPE_DOUBLE:
-	  return FFI_TYPE_UINT64;
-	  break;
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	case FFI_TYPE_LONGDOUBLE:
-	  return FFI_TYPE_UINT128;
-	  break;
-#endif
-	default:
-	  return cif->rtype->type;
-	}
-    }
-  else
-    {
-      return cif->rtype->type;
-    }
-}
-
-int FFI_HIDDEN ffi_closure_helper_LINUX64 (ffi_closure *, void *,
-					   unsigned long *, ffi_dblfl *);
-
-int FFI_HIDDEN
-ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
-			    unsigned long *pst, ffi_dblfl *pfr)
-{
-  /* rvalue is the pointer to space for return value in closure assembly */
-  /* pst is the pointer to parameter save area
-     (r3-r10 are stored into its first 8 slots by ffi_closure_LINUX64) */
-  /* pfr is the pointer to where f1-f13 are stored in ffi_closure_LINUX64 */
-
-  void **avalue;
-  ffi_type **arg_types;
-  long i, avn;
-  ffi_cif *cif;
-  ffi_dblfl *end_pfr = pfr + NUM_FPR_ARG_REGISTERS64;
-
-  cif = closure->cif;
-  avalue = alloca (cif->nargs * sizeof (void *));
-
-  /* Copy the caller's structure return value address so that the closure
-     returns the data directly to the caller.  */
-  if (cif->rtype->type == FFI_TYPE_STRUCT)
-    {
-      rvalue = (void *) *pst;
-      pst++;
-    }
-
-  i = 0;
-  avn = cif->nargs;
-  arg_types = cif->arg_types;
-
-  /* Grab the addresses of the arguments from the stack frame.  */
-  while (i < avn)
-    {
-      switch (arg_types[i]->type)
-	{
-	case FFI_TYPE_SINT8:
-	case FFI_TYPE_UINT8:
-	  avalue[i] = (char *) pst + 7;
-	  pst++;
-	  break;
-
-	case FFI_TYPE_SINT16:
-	case FFI_TYPE_UINT16:
-	  avalue[i] = (char *) pst + 6;
-	  pst++;
-	  break;
-
-	case FFI_TYPE_SINT32:
-	case FFI_TYPE_UINT32:
-	  avalue[i] = (char *) pst + 4;
-	  pst++;
-	  break;
-
-	case FFI_TYPE_SINT64:
-	case FFI_TYPE_UINT64:
-	case FFI_TYPE_POINTER:
-	  avalue[i] = pst;
-	  pst++;
-	  break;
-
-	case FFI_TYPE_STRUCT:
-	  /* Structures with size less than eight bytes are passed
-	     left-padded.  */
-	  if (arg_types[i]->size < 8)
-	    avalue[i] = (char *) pst + 8 - arg_types[i]->size;
-	  else
-	    avalue[i] = pst;
-	  pst += (arg_types[i]->size + 7) / 8;
-	  break;
-
-	case FFI_TYPE_FLOAT:
-	  /* unfortunately float values are stored as doubles
-	   * in the ffi_closure_LINUX64 code (since we don't check
-	   * the type in that routine).
-	   */
-
-	  /* there are 13 64bit floating point registers */
-
-	  if (pfr < end_pfr)
-	    {
-	      double temp = pfr->d;
-	      pfr->f = (float) temp;
-	      avalue[i] = pfr;
-	      pfr++;
-	    }
-	  else
-	    avalue[i] = pst;
-	  pst++;
-	  break;
-
-	case FFI_TYPE_DOUBLE:
-	  /* On the outgoing stack all values are aligned to 8 */
-	  /* there are 13 64bit floating point registers */
-
-	  if (pfr < end_pfr)
-	    {
-	      avalue[i] = pfr;
-	      pfr++;
-	    }
-	  else
-	    avalue[i] = pst;
-	  pst++;
-	  break;
-
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-	case FFI_TYPE_LONGDOUBLE:
-	  if (pfr + 1 < end_pfr)
-	    {
-	      avalue[i] = pfr;
-	      pfr += 2;
-	    }
-	  else
-	    {
-	      if (pfr < end_pfr)
-		{
-		  /* Passed partly in f13 and partly on the stack.
-		     Move it all to the stack.  */
-		  *pst = *(unsigned long *) pfr;
-		  pfr++;
-		}
-	      avalue[i] = pst;
-	    }
-	  pst += 2;
-	  break;
-#endif
-
-	default:
-	  FFI_ASSERT (0);
-	}
-
-      i++;
-    }
-
-
-  (closure->fun) (cif, rvalue, avalue, closure->user_data);
-
-  /* Tell ffi_closure_LINUX64 how to perform return type promotions.  */
-  return cif->rtype->type;
-}
diff --git a/src/powerpc/ffi.c.rej b/src/powerpc/ffi.c.rej
deleted file mode 100644
index 021f6e3..0000000
--- a/src/powerpc/ffi.c.rej
+++ /dev/null
@@ -1,12 +0,0 @@
---- src/powerpc/ffi.c
-+++ src/powerpc/ffi.c
-@@ -717,9 +734,6 @@
- 		}
- 	    }
- 	}
--#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
--    byref:
--#endif
-       intarg_count++;
-       flags |= FLAG_RETVAL_REFERENCE;
-       /* Fall through.  */
diff --git a/src/powerpc/sysv.S.orig b/src/powerpc/sysv.S.orig
deleted file mode 100644
index 9ad8d9f..0000000
--- a/src/powerpc/sysv.S.orig
+++ /dev/null
@@ -1,214 +0,0 @@
-/* -----------------------------------------------------------------------
-   sysv.S - Copyright (c) 1998 Geoffrey Keating
-   Copyright (C) 2007 Free Software Foundation, Inc
-
-   PowerPC Assembly glue.
-
-   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>
-#include <powerpc/asm.h>
-
-#ifndef __powerpc64__
-	.globl ffi_prep_args_SYSV
-ENTRY(ffi_call_SYSV)
-.LFB1:
-	/* Save the old stack pointer as AP.  */
-	mr	%r8,%r1
-
-.LCFI0:
-	/* Allocate the stack space we need.  */
-	stwux	%r1,%r1,%r4
-	/* Save registers we use.  */
-	mflr	%r9
-	stw	%r28,-16(%r8)
-.LCFI1:
-	stw	%r29,-12(%r8)
-.LCFI2:
-	stw	%r30, -8(%r8)
-.LCFI3:
-	stw	%r31, -4(%r8)
-.LCFI4:
-	stw	%r9,   4(%r8)
-.LCFI5:
-
-	/* Save arguments over call...  */
-	mr	%r31,%r5	/* flags, */
-	mr	%r30,%r6	/* rvalue, */
-	mr	%r29,%r7	/* function address, */
-	mr	%r28,%r8	/* our AP. */
-.LCFI6:
-
-	/* Call ffi_prep_args_SYSV.  */
-	mr	%r4,%r1
-	bl	ffi_prep_args_SYSV@local
-
-	/* Now do the call.  */
-	/* Set up cr1 with bits 4-7 of the flags.  */
-	mtcrf	0x40,%r31
-	/* Get the address to call into CTR.  */
-	mtctr	%r29
-	/* Load all those argument registers.  */
-	lwz	%r3,-16-(8*4)(%r28)
-	lwz	%r4,-16-(7*4)(%r28)
-	lwz	%r5,-16-(6*4)(%r28)
-	lwz	%r6,-16-(5*4)(%r28)
-	bf-	5,1f
-	nop
-	lwz	%r7,-16-(4*4)(%r28)
-	lwz	%r8,-16-(3*4)(%r28)
-	lwz	%r9,-16-(2*4)(%r28)
-	lwz	%r10,-16-(1*4)(%r28)
-	nop
-1:
-
-	/* Load all the FP registers.  */
-	bf-	6,2f
-	lfd	%f1,-16-(8*4)-(8*8)(%r28)
-	lfd	%f2,-16-(8*4)-(7*8)(%r28)
-	lfd	%f3,-16-(8*4)-(6*8)(%r28)
-	lfd	%f4,-16-(8*4)-(5*8)(%r28)
-	nop
-	lfd	%f5,-16-(8*4)-(4*8)(%r28)
-	lfd	%f6,-16-(8*4)-(3*8)(%r28)
-	lfd	%f7,-16-(8*4)-(2*8)(%r28)
-	lfd	%f8,-16-(8*4)-(1*8)(%r28)
-2:
-
-	/* Make the call.  */
-	bctrl
-
-	/* Now, deal with the return value.  */
-	mtcrf	0x01,%r31 /* cr7  */
-	bt-	31,L(small_struct_return_value)
-	bt-	30,L(done_return_value)
-	bt-	29,L(fp_return_value)
-	stw	%r3,0(%r30)
-	bf+	28,L(done_return_value)
-	stw	%r4,4(%r30)
-	mtcrf	0x02,%r31 /* cr6  */
-	bf	27,L(done_return_value)
-	stw     %r5,8(%r30)
-	stw	%r6,12(%r30)
-	/* Fall through...  */
-
-L(done_return_value):
-	/* Restore the registers we used and return.  */
-	lwz	%r9,   4(%r28)
-	lwz	%r31, -4(%r28)
-	mtlr	%r9
-	lwz	%r30, -8(%r28)
-	lwz	%r29,-12(%r28)
-	lwz	%r28,-16(%r28)
-	lwz	%r1,0(%r1)
-	blr
-
-L(fp_return_value):
-	bf	28,L(float_return_value)
-	stfd	%f1,0(%r30)
-	mtcrf   0x02,%r31 /* cr6  */
-	bf	27,L(done_return_value)
-	stfd	%f2,8(%r30)
-	b	L(done_return_value)
-L(float_return_value):
-	stfs	%f1,0(%r30)
-	b	L(done_return_value)
-
-L(small_struct_return_value):
-	/*
-	 * The C code always allocates a properly-aligned 8-byte bounce
-	 * buffer to make this assembly code very simple.  Just write out
-	 * r3 and r4 to the buffer to allow the C code to handle the rest.
-	 */
-	stw %r3, 0(%r30)
-	stw %r4, 4(%r30)
-	b L(done_return_value)
-
-.LFE1:
-END(ffi_call_SYSV)
-
-      .section	".eh_frame",EH_FRAME_FLAGS,@progbits
-.Lframe1:
-      .4byte    .LECIE1-.LSCIE1  /*  Length of Common Information Entry */
-.LSCIE1:
-      .4byte    0x0      /*  CIE Identifier Tag */
-      .byte     0x1      /*  CIE Version */
-#if defined _RELOCATABLE || defined __PIC__
-      .ascii	"zR\0"   /*  CIE Augmentation */
-#else
-      .ascii	"\0"	 /*  CIE Augmentation */
-#endif
-      .uleb128  0x1      /*  CIE Code Alignment Factor */
-      .sleb128  -4	 /*  CIE Data Alignment Factor */
-      .byte     0x41     /*  CIE RA Column */
-#if defined _RELOCATABLE || defined __PIC__
-      .uleb128  0x1      /*  Augmentation size */
-      .byte	0x1b	 /*  FDE Encoding (pcrel sdata4) */
-#endif
-      .byte     0xc      /*  DW_CFA_def_cfa */
-      .uleb128  0x1
-      .uleb128  0x0
-      .align 2
-.LECIE1:
-.LSFDE1:
-      .4byte    .LEFDE1-.LASFDE1         /*  FDE Length */
-.LASFDE1:
-      .4byte    .LASFDE1-.Lframe1         /*  FDE CIE offset */
-#if defined _RELOCATABLE || defined __PIC__
-      .4byte    .LFB1-.  /*  FDE initial location */
-#else
-      .4byte    .LFB1    /*  FDE initial location */
-#endif
-      .4byte    .LFE1-.LFB1      /*  FDE address range */
-#if defined _RELOCATABLE || defined __PIC__
-      .uleb128  0x0	 /*  Augmentation size */
-#endif
-      .byte     0x4      /*  DW_CFA_advance_loc4 */
-      .4byte    .LCFI0-.LFB1
-      .byte     0xd      /*  DW_CFA_def_cfa_register */
-      .uleb128  0x08
-      .byte     0x4      /*  DW_CFA_advance_loc4 */
-      .4byte    .LCFI5-.LCFI0
-      .byte     0x11     /*  DW_CFA_offset_extended_sf */
-      .uleb128  0x41
-      .sleb128  -1
-      .byte     0x9f     /*  DW_CFA_offset, column 0x1f */
-      .uleb128  0x1
-      .byte     0x9e     /*  DW_CFA_offset, column 0x1e */
-      .uleb128  0x2
-      .byte     0x9d     /*  DW_CFA_offset, column 0x1d */
-      .uleb128  0x3
-      .byte     0x9c     /*  DW_CFA_offset, column 0x1c */
-      .uleb128  0x4
-      .byte     0x4      /*  DW_CFA_advance_loc4 */
-      .4byte    .LCFI6-.LCFI5
-      .byte     0xd      /*  DW_CFA_def_cfa_register */
-      .uleb128  0x1c
-      .align 2
-.LEFDE1:
-#endif
-
-#if defined __ELF__ && defined __linux__
-	.section	.note.GNU-stack,"",@progbits
-#endif