libffi: back-port support for ARC

diff --git a/package/libffi/libffi-arc-01-Add-ARC-support.patch b/package/libffi/libffi-arc-01-Add-ARC-support.patch
new file mode 100644
index 0000000..c39a3e7
--- /dev/null
+++ b/package/libffi/libffi-arc-01-Add-ARC-support.patch
@@ -0,0 +1,560 @@ 
+From 5a2352c476b501ecbd3c7ef3ef3e02c24ce5a449 Mon Sep 17 00:00:00 2001
+From: Mischa Jonker <mjonker@synopsys.com>
+Date: Mon, 10 Jun 2013 16:19:33 +0200
+Subject: [PATCH 1/3] Add ARC support
+
+This adds support for the ARC architecture to libffi. DesignWare ARC
+is a family of processors from Synopsys, Inc.
+
+This patch has been tested on a little-endian system and passes
+the testsuite.
+
+Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
+---
+ Makefile.am         |   6 +-
+ README              |   1 +
+ configure.ac        |   5 +
+ src/arc/arcompact.S | 135 ++++++++++++++++++++++++++
+ src/arc/ffi.c       | 268 ++++++++++++++++++++++++++++++++++++++++++++++++++++
+ src/arc/ffitarget.h |  53 +++++++++++
+ 6 files changed, 467 insertions(+), 1 deletion(-)
+ create mode 100644 src/arc/arcompact.S
+ create mode 100644 src/arc/ffi.c
+ create mode 100644 src/arc/ffitarget.h
+
+diff --git a/Makefile.am b/Makefile.am
+index bf0156f..b57b2a8 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -9,7 +9,8 @@ SUBDIRS = include testsuite man
+ EXTRA_DIST = LICENSE ChangeLog.v1 ChangeLog.libgcj configure.host	\
+ 	 src/aarch64/ffi.c src/aarch64/ffitarget.h src/aarch64/sysv.S	\
+ 	 build-ios.sh src/alpha/ffi.c src/alpha/osf.S			\
+-	 src/alpha/ffitarget.h src/arm/ffi.c src/arm/sysv.S		\
++	 src/alpha/ffitarget.h src/arc/ffi.c src/arc/arcompact.S	\
++	 src/arc/ffitarget.h src/arm/ffi.c src/arm/sysv.S		\
+ 	 src/arm/ffitarget.h src/avr32/ffi.c src/avr32/sysv.S		\
+ 	 src/avr32/ffitarget.h src/cris/ffi.c src/cris/sysv.S		\
+ 	 src/cris/ffitarget.h src/ia64/ffi.c src/ia64/ffitarget.h	\
+@@ -170,6 +171,9 @@ endif
+ if AARCH64
+ nodist_libffi_la_SOURCES += src/aarch64/sysv.S src/aarch64/ffi.c
+ endif
++if ARC
++nodist_libffi_la_SOURCES += src/arc/sysv.S src/arc/ffi.c
++endif
+ if ARM
+ nodist_libffi_la_SOURCES += src/arm/sysv.S src/arm/ffi.c
+ if FFI_EXEC_TRAMPOLINE_TABLE
+diff --git a/README b/README
+index 19156fe..d8e4e9e 100644
+--- a/README
++++ b/README
+@@ -54,6 +54,7 @@ tested:
+ | AArch64         | Linux            | GCC                     |
+ | Alpha           | Linux            | GCC                     |
+ | Alpha           | Tru64            | GCC                     |
++| ARC             | Linux            | GCC                     |
+ | ARM             | Linux            | GCC                     |
+ | ARM             | iOS              | GCC                     |
+ | AVR32           | Linux            | GCC                     |
+diff --git a/configure.ac b/configure.ac
+index 0dc0675..a26cb46 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -77,6 +77,10 @@ case "$host" in
+ 	HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
+ 	;;
+ 
++  arc*-*-*)
++	TARGET=ARC; TARGETDIR=arc
++	;;
++
+   arm*-*-*)
+ 	TARGET=ARM; TARGETDIR=arm
+ 	;;
+@@ -289,6 +293,7 @@ AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
+ AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
+ AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD)
+ AM_CONDITIONAL(AARCH64, test x$TARGET = xAARCH64)
++AM_CONDITIONAL(ARC, test x$TARGET = xARC)
+ AM_CONDITIONAL(ARM, test x$TARGET = xARM)
+ AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32)
+ AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
+diff --git a/src/arc/arcompact.S b/src/arc/arcompact.S
+new file mode 100644
+index 0000000..03715fd
+--- /dev/null
++++ b/src/arc/arcompact.S
+@@ -0,0 +1,135 @@
++/* -----------------------------------------------------------------------
++   arcompact.S - Copyright (c) 2013 Synposys, Inc. (www.synopsys.com)
++   
++   ARCompact Foreign Function Interface 
++
++   Permission is hereby granted, free of charge, to any person obtaining
++   a copy of this software and associated documentation files (the
++   ``Software''), to deal in the Software without restriction, including
++   without limitation the rights to use, copy, modify, merge, publish,
++   distribute, sublicense, and/or sell copies of the Software, and to
++   permit persons to whom the Software is furnished to do so, subject to
++   the following conditions:
++
++   The above copyright notice and this permission notice shall be included
++   in all copies or substantial portions of the Software.
++
++   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
++   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
++   IN NO EVENT SHALL RENESAS TECHNOLOGY BE LIABLE FOR ANY CLAIM, DAMAGES OR
++   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
++   OTHER DEALINGS IN THE SOFTWARE.
++   ----------------------------------------------------------------------- */
++
++#define LIBFFI_ASM
++#include <fficonfig.h>
++#include <ffi.h>
++#ifdef HAVE_MACHINE_ASM_H
++#include <machine/asm.h>
++#else
++#define CNAME(x) x
++#define ENTRY(x) .globl CNAME(x)` .type CNAME(x),%function` CNAME(x):
++#endif
++
++.text
++
++        /* R0:   ffi_prep_args */
++        /* R1:   &ecif */
++        /* R2:   cif->bytes */
++        /* R3:   fig->flags */
++        /* R4:   ecif.rvalue */
++        /* R5:   fn */
++ENTRY(ffi_call_ARCompact)
++        /* Save registers.  */
++        st.a       fp, [sp, -4]        /* fp + 20, fp */
++        push_s     blink               /* fp + 16, blink */
++        st.a       r4, [sp, -4]        /* fp + 12, ecif.rvalue */
++        push_s     r3                  /* fp +  8, fig->flags */
++        st.a       r5, [sp, -4]        /* fp +  4, fn */
++        push_s     r2                  /* fp +  0, cif->bytes */
++        mov        fp, sp
++
++        /* Make room for all of the new args.  */
++        sub        sp, sp, r2
++
++        /* Place all of the ffi_prep_args in position.  */
++        /* ffi_prep_args(char *stack, extended_cif *ecif) */
++        /* R1 already set.  */
++
++        /* And call.  */
++        jl_s.d     [r0]
++        mov_s      r0, sp
++
++        ld.ab      r12, [fp, 4]        /* cif->bytes */
++        ld.ab      r11, [fp, 4]        /* fn */
++
++        /* Move first 8 parameters in registers...  */
++        ld_s       r0, [sp]
++        ld_s       r1, [sp, 4]
++        ld_s       r2, [sp, 8]
++        ld_s       r3, [sp, 12]
++        ld         r4, [sp, 16]
++        ld         r5, [sp, 20]
++        ld         r6, [sp, 24]
++        ld         r7, [sp, 28]
++
++        /* ...and adjust the stack.  */
++        min        r12, r12, 32
++
++        /* Call the function.  */
++        jl.d       [r11]
++        add        sp, sp, r12 
++
++        mov        sp, fp        
++        pop_s      r3        /* fig->flags, return type */
++        pop_s      r2        /* ecif.rvalue, pointer for return value */
++
++        /* If the return value pointer is NULL, assume no return value.  */
++        breq.d     r2, 0, epilogue
++        pop_s      blink
++
++        /* Return INT.  */
++        brne       r3, FFI_TYPE_INT, return_double
++        b.d        epilogue
++        st_s       r0, [r2]        
++
++return_double:
++        brne       r3, FFI_TYPE_DOUBLE, epilogue
++        st_s       r0, [r2]        
++        st_s       r1, [r2,4]
++
++epilogue:
++        j_s.d      [blink]
++        ld.ab      fp, [sp, 4]
++
++ENTRY(ffi_closure_ARCompact)
++        st.a       r0, [sp, -32]
++        st_s       r1, [sp, 4]
++        st_s       r2, [sp, 8]
++        st_s       r3, [sp, 12]
++        st         r4, [sp, 16]
++        st         r5, [sp, 20]
++        st         r6, [sp, 24]
++        st         r7, [sp, 28]
++
++        /* pointer to arguments */
++        mov_s      r2, sp
++
++        /* return value goes here */
++        sub        sp, sp, 8
++        mov_s      r1, sp
++
++        push_s     blink
++        
++        bl.d       ffi_closure_inner_ARCompact
++        mov_s      r0, r8                /* codeloc, set by trampoline */
++
++        pop_s      blink
++
++        /* set return value to r1:r0 */
++        pop_s      r0
++        pop_s      r1
++        j_s.d      [blink]
++        add_s      sp, sp, 32
+diff --git a/src/arc/ffi.c b/src/arc/ffi.c
+new file mode 100644
+index 0000000..32f82a7
+--- /dev/null
++++ b/src/arc/ffi.c
+@@ -0,0 +1,268 @@
++/* -----------------------------------------------------------------------
++   ffi.c - Copyright (c) 2013  Synopsys, Inc. (www.synopsys.com)
++   
++   ARC Foreign Function Interface 
++
++   Permission is hereby granted, free of charge, to any person obtaining
++   a copy of this software and associated documentation files (the
++   ``Software''), to deal in the Software without restriction, including
++   without limitation the rights to use, copy, modify, merge, publish,
++   distribute, sublicense, and/or sell copies of the Software, and to
++   permit persons to whom the Software is furnished to do so, subject to
++   the following conditions:
++
++   The above copyright notice and this permission notice shall be included
++   in all copies or substantial portions of the Software.
++
++   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
++   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
++   IN NO EVENT SHALL RENESAS TECHNOLOGY BE LIABLE FOR ANY CLAIM, DAMAGES OR
++   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
++   OTHER DEALINGS IN THE SOFTWARE.
++   ----------------------------------------------------------------------- */
++
++#include <ffi.h>
++#include <ffi_common.h>
++
++#include <stdlib.h>
++#include <stdint.h>
++
++#include <sys/cachectl.h>
++
++/* for little endian ARC, the code is in fact stored as mixed endian for
++   performance reasons */
++#if __BIG_ENDIAN__
++#define CODE_ENDIAN(x) (x)
++#else
++#define CODE_ENDIAN(x) ( (((uint32_t) (x)) << 16) | (((uint32_t) (x)) >> 16))
++#endif
++
++/* ffi_prep_args is called by the assembly routine once stack
++   space has been allocated for the function's arguments.  */
++
++void
++ffi_prep_args (char *stack, extended_cif * ecif)
++{
++  unsigned int i;
++  int tmp;
++  void **p_argv;
++  char *argp;
++  ffi_type **p_arg;
++
++  tmp = 0;
++  argp = stack;
++
++  if (ecif->cif->rtype->type == FFI_TYPE_STRUCT)
++    {
++      *(void **) argp = ecif->rvalue;
++      argp += 4;
++    }
++
++  p_argv = ecif->avalue;
++
++  for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
++       (i != 0); i--, p_arg++)
++    {
++      size_t z;
++      int alignment;
++
++      /* align alignment to 4 */
++      alignment = (((*p_arg)->alignment - 1) | 3) + 1;
++
++      /* Align if necessary.  */
++      if ((alignment - 1) & (unsigned) argp)
++	argp = (char *) ALIGN (argp, alignment);
++
++      z = (*p_arg)->size;
++      if (z < sizeof (int))
++	{
++	  z = sizeof (int);
++
++	  switch ((*p_arg)->type)
++	    {
++	    case FFI_TYPE_SINT8:
++	      *(signed int *) argp = (signed int) *(SINT8 *) (*p_argv);
++	      break;
++
++	    case FFI_TYPE_UINT8:
++	      *(unsigned int *) argp = (unsigned int) *(UINT8 *) (*p_argv);
++	      break;
++
++	    case FFI_TYPE_SINT16:
++	      *(signed int *) argp = (signed int) *(SINT16 *) (*p_argv);
++	      break;
++
++	    case FFI_TYPE_UINT16:
++	      *(unsigned int *) argp = (unsigned int) *(UINT16 *) (*p_argv);
++	      break;
++
++	    case FFI_TYPE_STRUCT:
++	      memcpy (argp, *p_argv, (*p_arg)->size);
++	      break;
++
++	    default:
++	      FFI_ASSERT (0);
++	    }
++	}
++      else if (z == sizeof (int))
++	{
++	  *(unsigned int *) argp = (unsigned int) *(UINT32 *) (*p_argv);
++	}
++      else
++	{
++	  if ((*p_arg)->type == FFI_TYPE_STRUCT)
++	    {
++	      memcpy (argp, *p_argv, z);
++	    }
++	  else
++	    {
++	      /* Double or long long 64bit.  */
++	      memcpy (argp, *p_argv, z);
++	    }
++	}
++      p_argv++;
++      argp += z;
++    }
++
++  return;
++}
++
++/* Perform machine dependent cif processing.  */
++ffi_status
++ffi_prep_cif_machdep (ffi_cif * cif)
++{
++  /* Set the return type flag.  */
++  switch (cif->rtype->type)
++    {
++    case FFI_TYPE_VOID:
++      cif->flags = (unsigned) cif->rtype->type;
++      break;
++
++    case FFI_TYPE_STRUCT:
++      cif->flags = (unsigned) cif->rtype->type;
++      break;
++
++    case FFI_TYPE_SINT64:
++    case FFI_TYPE_UINT64:
++    case FFI_TYPE_DOUBLE:
++      cif->flags = FFI_TYPE_DOUBLE;
++      break;
++
++    case FFI_TYPE_FLOAT:
++    default:
++      cif->flags = FFI_TYPE_INT;
++      break;
++    }
++
++  return FFI_OK;
++}
++
++extern void ffi_call_ARCompact (void (*)(char *, extended_cif *),
++				extended_cif *, unsigned, unsigned,
++				unsigned *, void (*fn) (void));
++
++void
++ffi_call (ffi_cif * cif, void (*fn) (void), void *rvalue, void **avalue)
++{
++  extended_cif ecif;
++
++  ecif.cif = cif;
++  ecif.avalue = avalue;
++
++  /* If the return value is a struct and we don't have
++     a return value address then we need to make one.  */
++  if ((rvalue == NULL) && (cif->rtype->type == FFI_TYPE_STRUCT))
++    {
++      ecif.rvalue = alloca (cif->rtype->size);
++    }
++  else
++    ecif.rvalue = rvalue;
++
++  switch (cif->abi)
++    {
++    case FFI_ARCOMPACT:
++      ffi_call_ARCompact (ffi_prep_args, &ecif, cif->bytes,
++			  cif->flags, ecif.rvalue, fn);
++      break;
++
++    default:
++      FFI_ASSERT (0);
++      break;
++    }
++}
++
++int
++ffi_closure_inner_ARCompact (ffi_closure * closure, void *rvalue,
++			     ffi_arg * args)
++{
++  void **arg_area, **p_argv;
++  ffi_cif *cif = closure->cif;
++  char *argp = (char *) args;
++  ffi_type **p_argt;
++  int i;
++
++  arg_area = (void **) alloca (cif->nargs * sizeof (void *));
++
++  /* handle hidden argument */
++  if (cif->flags == FFI_TYPE_STRUCT)
++    {
++      rvalue = *(void **) argp;
++      argp += 4;
++    }
++
++  p_argv = arg_area;
++
++  for (i = 0, p_argt = cif->arg_types; i < cif->nargs;
++       i++, p_argt++, p_argv++)
++    {
++      size_t z;
++      int alignment;
++
++      /* align alignment to 4 */
++      alignment = (((*p_argt)->alignment - 1) | 3) + 1;
++
++      /* Align if necessary.  */
++      if ((alignment - 1) & (unsigned) argp)
++	argp = (char *) ALIGN (argp, alignment);
++
++      z = (*p_argt)->size;
++      *p_argv = (void *) argp;
++      argp += z;
++    }
++
++  (closure->fun) (cif, rvalue, arg_area, closure->user_data);
++
++  return cif->flags;
++}
++
++extern void ffi_closure_ARCompact (void);
++
++ffi_status
++ffi_prep_closure_loc (ffi_closure * closure, ffi_cif * cif,
++		      void (*fun) (ffi_cif *, void *, void **, void *),
++		      void *user_data, void *codeloc)
++{
++  uint32_t *tramp = (uint32_t *) & (closure->tramp[0]);
++
++  switch (cif->abi)
++    {
++    case FFI_ARCOMPACT:
++      FFI_ASSERT (tramp == codeloc);
++      tramp[0] = CODE_ENDIAN (0x200a1fc0);	/* mov r8, pcl  */
++      tramp[1] = CODE_ENDIAN (0x20200f80);	/* j [long imm] */
++      tramp[2] = CODE_ENDIAN (ffi_closure_ARCompact);
++      break;
++
++    default:
++      return FFI_BAD_ABI;
++    }
++
++  closure->cif = cif;
++  closure->fun = fun;
++  closure->user_data = user_data;
++  cacheflush (codeloc, FFI_TRAMPOLINE_SIZE, BCACHE);
++
++  return FFI_OK;
++}
+diff --git a/src/arc/ffitarget.h b/src/arc/ffitarget.h
+new file mode 100644
+index 0000000..bf8311b
+--- /dev/null
++++ b/src/arc/ffitarget.h
+@@ -0,0 +1,53 @@
++/* -----------------------------------------------------------------------
++   ffitarget.h - Copyright (c) 2012  Anthony Green
++                 Copyright (c) 2013  Synopsys, Inc. (www.synopsys.com)
++   Target configuration macros for ARC.
++
++   Permission is hereby granted, free of charge, to any person obtaining
++   a copy of this software and associated documentation files (the
++   ``Software''), to deal in the Software without restriction, including
++   without limitation the rights to use, copy, modify, merge, publish,
++   distribute, sublicense, and/or sell copies of the Software, and to
++   permit persons to whom the Software is furnished to do so, subject to
++   the following conditions:
++
++   The above copyright notice and this permission notice shall be included
++   in all copies or substantial portions of the Software.
++
++   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
++   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
++   IN NO EVENT SHALL RENESAS TECHNOLOGY BE LIABLE FOR ANY CLAIM, DAMAGES OR
++   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
++   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
++   OTHER DEALINGS IN THE SOFTWARE.
++
++   ----------------------------------------------------------------------- */
++
++#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
++
++/* ---- Generic type definitions ----------------------------------------- */
++
++#ifndef LIBFFI_ASM
++typedef unsigned long ffi_arg;
++typedef signed long ffi_sarg;
++
++typedef enum ffi_abi
++{
++  FFI_FIRST_ABI = 0,
++  FFI_ARCOMPACT,
++  FFI_LAST_ABI,
++  FFI_DEFAULT_ABI = FFI_ARCOMPACT
++} ffi_abi;
++#endif
++
++#define FFI_CLOSURES 		1
++#define FFI_TRAMPOLINE_SIZE	12
++#define FFI_NATIVE_RAW_API 	0
++
++#endif
+-- 
+1.9.0
+
diff --git a/package/libffi/libffi-arc-02-Rebuild-for-ARC-additions.patch b/package/libffi/libffi-arc-02-Rebuild-for-ARC-additions.patch
new file mode 100644
index 0000000..a8b1dec
--- /dev/null
+++ b/package/libffi/libffi-arc-02-Rebuild-for-ARC-additions.patch
@@ -0,0 +1,262 @@ 
+From 234414f2c9d32e9fd94d15f94871837210dbab04 Mon Sep 17 00:00:00 2001
+From: Anthony Green <green@moxielogic.com>
+Date: Tue, 2 Jul 2013 15:54:40 -0400
+Subject: [PATCH 2/3] Rebuild for ARC additions
+
+---
+ Makefile.in | 96 +++++++++++++++++++++++++++++++++++++------------------------
+ configure   | 18 ++++++++++++
+ 2 files changed, 76 insertions(+), 38 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 4b6abe5..be425d8 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -72,20 +72,21 @@ target_triplet = @target@
+ @POWERPC_DARWIN_TRUE@am__append_18 = src/powerpc/ffi_darwin.c src/powerpc/darwin.S src/powerpc/darwin_closure.S
+ @POWERPC_FREEBSD_TRUE@am__append_19 = src/powerpc/ffi.c src/powerpc/sysv.S src/powerpc/ppc_closure.S
+ @AARCH64_TRUE@am__append_20 = src/aarch64/sysv.S src/aarch64/ffi.c
+-@ARM_TRUE@am__append_21 = src/arm/sysv.S src/arm/ffi.c
+-@ARM_TRUE@@FFI_EXEC_TRAMPOLINE_TABLE_TRUE@am__append_22 = src/arm/trampoline.S
+-@AVR32_TRUE@am__append_23 = src/avr32/sysv.S src/avr32/ffi.c
+-@LIBFFI_CRIS_TRUE@am__append_24 = src/cris/sysv.S src/cris/ffi.c
+-@FRV_TRUE@am__append_25 = src/frv/eabi.S src/frv/ffi.c
+-@S390_TRUE@am__append_26 = src/s390/sysv.S src/s390/ffi.c
+-@X86_64_TRUE@am__append_27 = src/x86/ffi64.c src/x86/unix64.S src/x86/ffi.c src/x86/sysv.S
+-@SH_TRUE@am__append_28 = src/sh/sysv.S src/sh/ffi.c
+-@SH64_TRUE@am__append_29 = src/sh64/sysv.S src/sh64/ffi.c
+-@PA_LINUX_TRUE@am__append_30 = src/pa/linux.S src/pa/ffi.c
+-@PA_HPUX_TRUE@am__append_31 = src/pa/hpux32.S src/pa/ffi.c
+-@TILE_TRUE@am__append_32 = src/tile/tile.S src/tile/ffi.c
+-@XTENSA_TRUE@am__append_33 = src/xtensa/sysv.S src/xtensa/ffi.c
+-@METAG_TRUE@am__append_34 = src/metag/sysv.S src/metag/ffi.c
++@ARC_TRUE@am__append_21 = src/arc/sysv.S src/arc/ffi.c
++@ARM_TRUE@am__append_22 = src/arm/sysv.S src/arm/ffi.c
++@ARM_TRUE@@FFI_EXEC_TRAMPOLINE_TABLE_TRUE@am__append_23 = src/arm/trampoline.S
++@AVR32_TRUE@am__append_24 = src/avr32/sysv.S src/avr32/ffi.c
++@LIBFFI_CRIS_TRUE@am__append_25 = src/cris/sysv.S src/cris/ffi.c
++@FRV_TRUE@am__append_26 = src/frv/eabi.S src/frv/ffi.c
++@S390_TRUE@am__append_27 = src/s390/sysv.S src/s390/ffi.c
++@X86_64_TRUE@am__append_28 = src/x86/ffi64.c src/x86/unix64.S src/x86/ffi.c src/x86/sysv.S
++@SH_TRUE@am__append_29 = src/sh/sysv.S src/sh/ffi.c
++@SH64_TRUE@am__append_30 = src/sh64/sysv.S src/sh64/ffi.c
++@PA_LINUX_TRUE@am__append_31 = src/pa/linux.S src/pa/ffi.c
++@PA_HPUX_TRUE@am__append_32 = src/pa/hpux32.S src/pa/ffi.c
++@TILE_TRUE@am__append_33 = src/tile/tile.S src/tile/ffi.c
++@XTENSA_TRUE@am__append_34 = src/xtensa/sysv.S src/xtensa/ffi.c
++@METAG_TRUE@am__append_35 = src/metag/sysv.S src/metag/ffi.c
+ subdir = .
+ DIST_COMMON = README $(am__configure_deps) $(srcdir)/Makefile.am \
+ 	$(srcdir)/Makefile.in $(srcdir)/doc/stamp-vti \
+@@ -183,21 +184,22 @@ am_libffi_la_OBJECTS = src/prep_cif.lo src/types.lo src/raw_api.lo \
+ @POWERPC_FREEBSD_TRUE@	src/powerpc/sysv.lo \
+ @POWERPC_FREEBSD_TRUE@	src/powerpc/ppc_closure.lo
+ @AARCH64_TRUE@am__objects_20 = src/aarch64/sysv.lo src/aarch64/ffi.lo
+-@ARM_TRUE@am__objects_21 = src/arm/sysv.lo src/arm/ffi.lo
+-@ARM_TRUE@@FFI_EXEC_TRAMPOLINE_TABLE_TRUE@am__objects_22 = src/arm/trampoline.lo
+-@AVR32_TRUE@am__objects_23 = src/avr32/sysv.lo src/avr32/ffi.lo
+-@LIBFFI_CRIS_TRUE@am__objects_24 = src/cris/sysv.lo src/cris/ffi.lo
+-@FRV_TRUE@am__objects_25 = src/frv/eabi.lo src/frv/ffi.lo
+-@S390_TRUE@am__objects_26 = src/s390/sysv.lo src/s390/ffi.lo
+-@X86_64_TRUE@am__objects_27 = src/x86/ffi64.lo src/x86/unix64.lo \
++@ARC_TRUE@am__objects_21 = src/arc/sysv.lo src/arc/ffi.lo
++@ARM_TRUE@am__objects_22 = src/arm/sysv.lo src/arm/ffi.lo
++@ARM_TRUE@@FFI_EXEC_TRAMPOLINE_TABLE_TRUE@am__objects_23 = src/arm/trampoline.lo
++@AVR32_TRUE@am__objects_24 = src/avr32/sysv.lo src/avr32/ffi.lo
++@LIBFFI_CRIS_TRUE@am__objects_25 = src/cris/sysv.lo src/cris/ffi.lo
++@FRV_TRUE@am__objects_26 = src/frv/eabi.lo src/frv/ffi.lo
++@S390_TRUE@am__objects_27 = src/s390/sysv.lo src/s390/ffi.lo
++@X86_64_TRUE@am__objects_28 = src/x86/ffi64.lo src/x86/unix64.lo \
+ @X86_64_TRUE@	src/x86/ffi.lo src/x86/sysv.lo
+-@SH_TRUE@am__objects_28 = src/sh/sysv.lo src/sh/ffi.lo
+-@SH64_TRUE@am__objects_29 = src/sh64/sysv.lo src/sh64/ffi.lo
+-@PA_LINUX_TRUE@am__objects_30 = src/pa/linux.lo src/pa/ffi.lo
+-@PA_HPUX_TRUE@am__objects_31 = src/pa/hpux32.lo src/pa/ffi.lo
+-@TILE_TRUE@am__objects_32 = src/tile/tile.lo src/tile/ffi.lo
+-@XTENSA_TRUE@am__objects_33 = src/xtensa/sysv.lo src/xtensa/ffi.lo
+-@METAG_TRUE@am__objects_34 = src/metag/sysv.lo src/metag/ffi.lo
++@SH_TRUE@am__objects_29 = src/sh/sysv.lo src/sh/ffi.lo
++@SH64_TRUE@am__objects_30 = src/sh64/sysv.lo src/sh64/ffi.lo
++@PA_LINUX_TRUE@am__objects_31 = src/pa/linux.lo src/pa/ffi.lo
++@PA_HPUX_TRUE@am__objects_32 = src/pa/hpux32.lo src/pa/ffi.lo
++@TILE_TRUE@am__objects_33 = src/tile/tile.lo src/tile/ffi.lo
++@XTENSA_TRUE@am__objects_34 = src/xtensa/sysv.lo src/xtensa/ffi.lo
++@METAG_TRUE@am__objects_35 = src/metag/sysv.lo src/metag/ffi.lo
+ nodist_libffi_la_OBJECTS = $(am__objects_1) $(am__objects_2) \
+ 	$(am__objects_3) $(am__objects_4) $(am__objects_5) \
+ 	$(am__objects_6) $(am__objects_7) $(am__objects_8) \
+@@ -209,17 +211,17 @@ nodist_libffi_la_OBJECTS = $(am__objects_1) $(am__objects_2) \
+ 	$(am__objects_24) $(am__objects_25) $(am__objects_26) \
+ 	$(am__objects_27) $(am__objects_28) $(am__objects_29) \
+ 	$(am__objects_30) $(am__objects_31) $(am__objects_32) \
+-	$(am__objects_33) $(am__objects_34)
++	$(am__objects_33) $(am__objects_34) $(am__objects_35)
+ libffi_la_OBJECTS = $(am_libffi_la_OBJECTS) \
+ 	$(nodist_libffi_la_OBJECTS)
+ libffi_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+ 	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ 	$(libffi_la_LDFLAGS) $(LDFLAGS) -o $@
+ libffi_convenience_la_LIBADD =
+-am__objects_35 = src/prep_cif.lo src/types.lo src/raw_api.lo \
++am__objects_36 = src/prep_cif.lo src/types.lo src/raw_api.lo \
+ 	src/java_raw_api.lo src/closures.lo
+-am_libffi_convenience_la_OBJECTS = $(am__objects_35)
+-am__objects_36 = $(am__objects_1) $(am__objects_2) $(am__objects_3) \
++am_libffi_convenience_la_OBJECTS = $(am__objects_36)
++am__objects_37 = $(am__objects_1) $(am__objects_2) $(am__objects_3) \
+ 	$(am__objects_4) $(am__objects_5) $(am__objects_6) \
+ 	$(am__objects_7) $(am__objects_8) $(am__objects_9) \
+ 	$(am__objects_10) $(am__objects_11) $(am__objects_12) \
+@@ -230,8 +232,8 @@ am__objects_36 = $(am__objects_1) $(am__objects_2) $(am__objects_3) \
+ 	$(am__objects_25) $(am__objects_26) $(am__objects_27) \
+ 	$(am__objects_28) $(am__objects_29) $(am__objects_30) \
+ 	$(am__objects_31) $(am__objects_32) $(am__objects_33) \
+-	$(am__objects_34)
+-nodist_libffi_convenience_la_OBJECTS = $(am__objects_36)
++	$(am__objects_34) $(am__objects_35)
++nodist_libffi_convenience_la_OBJECTS = $(am__objects_37)
+ libffi_convenience_la_OBJECTS = $(am_libffi_convenience_la_OBJECTS) \
+ 	$(nodist_libffi_convenience_la_OBJECTS)
+ DEFAULT_INCLUDES = -I.@am__isrc@
+@@ -471,7 +473,8 @@ SUBDIRS = include testsuite man
+ EXTRA_DIST = LICENSE ChangeLog.v1 ChangeLog.libgcj configure.host	\
+ 	 src/aarch64/ffi.c src/aarch64/ffitarget.h src/aarch64/sysv.S	\
+ 	 build-ios.sh src/alpha/ffi.c src/alpha/osf.S			\
+-	 src/alpha/ffitarget.h src/arm/ffi.c src/arm/sysv.S		\
++	 src/alpha/ffitarget.h src/arc/ffi.c src/arc/arcompact.S	\
++	 src/arc/ffitarget.h src/arm/ffi.c src/arm/sysv.S		\
+ 	 src/arm/ffitarget.h src/avr32/ffi.c src/avr32/sysv.S		\
+ 	 src/avr32/ffitarget.h src/cris/ffi.c src/cris/sysv.S		\
+ 	 src/cris/ffitarget.h src/ia64/ffi.c src/ia64/ffitarget.h	\
+@@ -571,7 +574,7 @@ nodist_libffi_la_SOURCES = $(am__append_1) $(am__append_2) \
+ 	$(am__append_24) $(am__append_25) $(am__append_26) \
+ 	$(am__append_27) $(am__append_28) $(am__append_29) \
+ 	$(am__append_30) $(am__append_31) $(am__append_32) \
+-	$(am__append_33) $(am__append_34)
++	$(am__append_33) $(am__append_34) $(am__append_35)
+ libffi_convenience_la_SOURCES = $(libffi_la_SOURCES)
+ nodist_libffi_convenience_la_SOURCES = $(nodist_libffi_la_SOURCES)
+ LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/libtool-ldflags $(LDFLAGS))
+@@ -843,6 +846,16 @@ src/aarch64/sysv.lo: src/aarch64/$(am__dirstamp) \
+ 	src/aarch64/$(DEPDIR)/$(am__dirstamp)
+ src/aarch64/ffi.lo: src/aarch64/$(am__dirstamp) \
+ 	src/aarch64/$(DEPDIR)/$(am__dirstamp)
++src/arc/$(am__dirstamp):
++	@$(MKDIR_P) src/arc
++	@: > src/arc/$(am__dirstamp)
++src/arc/$(DEPDIR)/$(am__dirstamp):
++	@$(MKDIR_P) src/arc/$(DEPDIR)
++	@: > src/arc/$(DEPDIR)/$(am__dirstamp)
++src/arc/sysv.lo: src/arc/$(am__dirstamp) \
++	src/arc/$(DEPDIR)/$(am__dirstamp)
++src/arc/ffi.lo: src/arc/$(am__dirstamp) \
++	src/arc/$(DEPDIR)/$(am__dirstamp)
+ src/arm/$(am__dirstamp):
+ 	@$(MKDIR_P) src/arm
+ 	@: > src/arm/$(am__dirstamp)
+@@ -970,6 +983,8 @@ mostlyclean-compile:
+ 	-rm -f src/aarch64/*.lo
+ 	-rm -f src/alpha/*.$(OBJEXT)
+ 	-rm -f src/alpha/*.lo
++	-rm -f src/arc/*.$(OBJEXT)
++	-rm -f src/arc/*.lo
+ 	-rm -f src/arm/*.$(OBJEXT)
+ 	-rm -f src/arm/*.lo
+ 	-rm -f src/avr32/*.$(OBJEXT)
+@@ -1026,6 +1041,8 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@src/aarch64/$(DEPDIR)/sysv.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@src/alpha/$(DEPDIR)/ffi.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@src/alpha/$(DEPDIR)/osf.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@src/arc/$(DEPDIR)/ffi.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@src/arc/$(DEPDIR)/sysv.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@src/arm/$(DEPDIR)/ffi.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@src/arm/$(DEPDIR)/sysv.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@src/arm/$(DEPDIR)/trampoline.Plo@am__quote@
+@@ -1144,6 +1161,7 @@ clean-libtool:
+ 	-rm -rf src/.libs src/_libs
+ 	-rm -rf src/aarch64/.libs src/aarch64/_libs
+ 	-rm -rf src/alpha/.libs src/alpha/_libs
++	-rm -rf src/arc/.libs src/arc/_libs
+ 	-rm -rf src/arm/.libs src/arm/_libs
+ 	-rm -rf src/avr32/.libs src/avr32/_libs
+ 	-rm -rf src/bfin/.libs src/bfin/_libs
+@@ -1714,6 +1732,8 @@ distclean-generic:
+ 	-rm -f src/aarch64/$(am__dirstamp)
+ 	-rm -f src/alpha/$(DEPDIR)/$(am__dirstamp)
+ 	-rm -f src/alpha/$(am__dirstamp)
++	-rm -f src/arc/$(DEPDIR)/$(am__dirstamp)
++	-rm -f src/arc/$(am__dirstamp)
+ 	-rm -f src/arm/$(DEPDIR)/$(am__dirstamp)
+ 	-rm -f src/arm/$(am__dirstamp)
+ 	-rm -f src/avr32/$(DEPDIR)/$(am__dirstamp)
+@@ -1768,7 +1788,7 @@ clean-am: clean-aminfo clean-generic clean-libtool \
+ 
+ distclean: distclean-recursive
+ 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+-	-rm -rf src/$(DEPDIR) src/aarch64/$(DEPDIR) src/alpha/$(DEPDIR) src/arm/$(DEPDIR) src/avr32/$(DEPDIR) src/bfin/$(DEPDIR) src/cris/$(DEPDIR) src/frv/$(DEPDIR) src/ia64/$(DEPDIR) src/m32r/$(DEPDIR) src/m68k/$(DEPDIR) src/metag/$(DEPDIR) src/microblaze/$(DEPDIR) src/mips/$(DEPDIR) src/moxie/$(DEPDIR) src/pa/$(DEPDIR) src/powerpc/$(DEPDIR) src/s390/$(DEPDIR) src/sh/$(DEPDIR) src/sh64/$(DEPDIR) src/sparc/$(DEPDIR) src/tile/$(DEPDIR) src/x86/$(DEPDIR) src/xtensa/$(DEPDIR)
++	-rm -rf src/$(DEPDIR) src/aarch64/$(DEPDIR) src/alpha/$(DEPDIR) src/arc/$(DEPDIR) src/arm/$(DEPDIR) src/avr32/$(DEPDIR) src/bfin/$(DEPDIR) src/cris/$(DEPDIR) src/frv/$(DEPDIR) src/ia64/$(DEPDIR) src/m32r/$(DEPDIR) src/m68k/$(DEPDIR) src/metag/$(DEPDIR) src/microblaze/$(DEPDIR) src/mips/$(DEPDIR) src/moxie/$(DEPDIR) src/pa/$(DEPDIR) src/powerpc/$(DEPDIR) src/s390/$(DEPDIR) src/sh/$(DEPDIR) src/sh64/$(DEPDIR) src/sparc/$(DEPDIR) src/tile/$(DEPDIR) src/x86/$(DEPDIR) src/xtensa/$(DEPDIR)
+ 	-rm -f Makefile
+ distclean-am: clean-am distclean-compile distclean-generic \
+ 	distclean-hdr distclean-libtool distclean-tags
+@@ -1907,7 +1927,7 @@ installcheck-am:
+ maintainer-clean: maintainer-clean-recursive
+ 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+ 	-rm -rf $(top_srcdir)/autom4te.cache
+-	-rm -rf src/$(DEPDIR) src/aarch64/$(DEPDIR) src/alpha/$(DEPDIR) src/arm/$(DEPDIR) src/avr32/$(DEPDIR) src/bfin/$(DEPDIR) src/cris/$(DEPDIR) src/frv/$(DEPDIR) src/ia64/$(DEPDIR) src/m32r/$(DEPDIR) src/m68k/$(DEPDIR) src/metag/$(DEPDIR) src/microblaze/$(DEPDIR) src/mips/$(DEPDIR) src/moxie/$(DEPDIR) src/pa/$(DEPDIR) src/powerpc/$(DEPDIR) src/s390/$(DEPDIR) src/sh/$(DEPDIR) src/sh64/$(DEPDIR) src/sparc/$(DEPDIR) src/tile/$(DEPDIR) src/x86/$(DEPDIR) src/xtensa/$(DEPDIR)
++	-rm -rf src/$(DEPDIR) src/aarch64/$(DEPDIR) src/alpha/$(DEPDIR) src/arc/$(DEPDIR) src/arm/$(DEPDIR) src/avr32/$(DEPDIR) src/bfin/$(DEPDIR) src/cris/$(DEPDIR) src/frv/$(DEPDIR) src/ia64/$(DEPDIR) src/m32r/$(DEPDIR) src/m68k/$(DEPDIR) src/metag/$(DEPDIR) src/microblaze/$(DEPDIR) src/mips/$(DEPDIR) src/moxie/$(DEPDIR) src/pa/$(DEPDIR) src/powerpc/$(DEPDIR) src/s390/$(DEPDIR) src/sh/$(DEPDIR) src/sh64/$(DEPDIR) src/sparc/$(DEPDIR) src/tile/$(DEPDIR) src/x86/$(DEPDIR) src/xtensa/$(DEPDIR)
+ 	-rm -f Makefile
+ maintainer-clean-am: distclean-am maintainer-clean-aminfo \
+ 	maintainer-clean-generic maintainer-clean-vti
+diff --git a/configure b/configure
+index 4b04db7..495389d 100755
+--- a/configure
++++ b/configure
+@@ -673,6 +673,8 @@ AVR32_FALSE
+ AVR32_TRUE
+ ARM_FALSE
+ ARM_TRUE
++ARC_FALSE
++ARC_TRUE
+ AARCH64_FALSE
+ AARCH64_TRUE
+ POWERPC_FREEBSD_FALSE
+@@ -13299,6 +13301,10 @@ case "$host" in
+ 	HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
+ 	;;
+ 
++  arc*-*-*)
++	TARGET=ARC; TARGETDIR=arc
++	;;
++
+   arm*-*-*)
+ 	TARGET=ARM; TARGETDIR=arm
+ 	;;
+@@ -13651,6 +13657,14 @@ else
+   AARCH64_FALSE=
+ fi
+ 
++ if test x$TARGET = xARC; then
++  ARC_TRUE=
++  ARC_FALSE='#'
++else
++  ARC_TRUE='#'
++  ARC_FALSE=
++fi
++
+  if test x$TARGET = xARM; then
+   ARM_TRUE=
+   ARM_FALSE='#'
+@@ -15087,6 +15101,10 @@ if test -z "${AARCH64_TRUE}" && test -z "${AARCH64_FALSE}"; then
+   as_fn_error $? "conditional \"AARCH64\" was never defined.
+ Usually this means the macro was only invoked conditionally." "$LINENO" 5
+ fi
++if test -z "${ARC_TRUE}" && test -z "${ARC_FALSE}"; then
++  as_fn_error $? "conditional \"ARC\" was never defined.
++Usually this means the macro was only invoked conditionally." "$LINENO" 5
++fi
+ if test -z "${ARM_TRUE}" && test -z "${ARM_FALSE}"; then
+   as_fn_error $? "conditional \"ARM\" was never defined.
+ Usually this means the macro was only invoked conditionally." "$LINENO" 5
+-- 
+1.9.0
+
diff --git a/package/libffi/libffi-arc-03-arc-Fix-build-error.patch b/package/libffi/libffi-arc-03-arc-Fix-build-error.patch
new file mode 100644
index 0000000..081fc1e
--- /dev/null
+++ b/package/libffi/libffi-arc-03-arc-Fix-build-error.patch
@@ -0,0 +1,43 @@ 
+From 5a1bbc8511464f073cb2e79d5aa9ea0395139541 Mon Sep 17 00:00:00 2001
+From: Mischa Jonker <mjonker@synopsys.com>
+Date: Mon, 8 Jul 2013 15:51:36 +0200
+Subject: [PATCH 3/3] arc: Fix build error
+
+One part of the patch for ARC support was missing in the upstreamed
+version.
+
+Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
+---
+ Makefile.am | 2 +-
+ Makefile.in | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index b57b2a8..19ead77 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -172,7 +172,7 @@ if AARCH64
+ nodist_libffi_la_SOURCES += src/aarch64/sysv.S src/aarch64/ffi.c
+ endif
+ if ARC
+-nodist_libffi_la_SOURCES += src/arc/sysv.S src/arc/ffi.c
++nodist_libffi_la_SOURCES += src/arc/arcompact.S src/arc/ffi.c
+ endif
+ if ARM
+ nodist_libffi_la_SOURCES += src/arm/sysv.S src/arm/ffi.c
+diff --git a/Makefile.in b/Makefile.in
+index be425d8..44c2551 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -852,7 +852,7 @@ src/arc/$(am__dirstamp):
+ src/arc/$(DEPDIR)/$(am__dirstamp):
+ 	@$(MKDIR_P) src/arc/$(DEPDIR)
+ 	@: > src/arc/$(DEPDIR)/$(am__dirstamp)
+-src/arc/sysv.lo: src/arc/$(am__dirstamp) \
++src/arc/arcompact.lo: src/arc/$(am__dirstamp) \
+ 	src/arc/$(DEPDIR)/$(am__dirstamp)
+ src/arc/ffi.lo: src/arc/$(am__dirstamp) \
+ 	src/arc/$(DEPDIR)/$(am__dirstamp)
+-- 
+1.9.0
+