libffi: import (some) Debian patches

The Debian team has some patches which we were missing.
This set does not address the ppc64* failing tests, though.
I did not include patches for alpha or riscv becase we
do not (yet) support these target architectures.

Signed-off-by: Jürgen Buchmüller <pullmoll@t-online.de>

srcpkgs/libffi/patches/fix-aarch64.patch

@@ -0,0 +1,15 @@
+Description: fixes issue with aarch64
+Author: Debian packagers
+Origin: libffi_3.2.1-9.debian.tar.xz
+
+--- src/aarch64/ffi.c
++++ src/aarch64/ffi.c
+@@ -731,7 +731,7 @@
+ 	      state.ngrn = N_X_ARG_REG;
+ 
+ 	      memcpy (allocate_to_stack (&state, stack, ty->alignment,
+-					 ty->size), ecif->avalue + i, ty->size);
++					 ty->size), ecif->avalue[i], ty->size);
+ 	    }
+ 	  break;
+ 

srcpkgs/libffi/patches/libffi-pr401.patch

@@ -0,0 +1,33 @@
+Description: fixes issue with aarch64
+Author: Anthony Green <green@moxielogic.com>
+Origin: libffi_3.2.1-9.debian.tar.xz
+
+https://github.com/libffi/libffi/pull/401
+
+--- src/mips/ffi.c
++++ src/mips/ffi.c
+@@ -715,7 +715,11 @@ ffi_prep_closure_loc (ffi_closure *closure,
+   /* lui  $12,high(codeloc) */
+   tramp[2] = 0x3c0c0000 | ((unsigned)codeloc >> 16);
+   /* jr   $25          */
++#if !defined(__mips_isa_rev) || (__mips_isa_rev<6)
+   tramp[3] = 0x03200008;
++#else
++  tramp[3] = 0x03200009;
++#endif
+   /* ori  $12,low(codeloc)  */
+   tramp[4] = 0x358c0000 | ((unsigned)codeloc & 0xffff);
+ #else
+@@ -743,7 +747,11 @@ ffi_prep_closure_loc (ffi_closure *closure,
+   /* ori  $25,low(fn)  */
+   tramp[10] = 0x37390000 | ((unsigned long)fn  & 0xffff);
+   /* jr   $25          */
++#if !defined(__mips_isa_rev) || (__mips_isa_rev<6)
+   tramp[11] = 0x03200008;
++#else
++  tramp[11] = 0x03200009;
++#endif
+   /* ori  $12,low(codeloc)  */
+   tramp[12] = 0x358c0000 | ((unsigned long)codeloc & 0xffff);
+ 
+

srcpkgs/libffi/patches/libffi-race-condition.patch

@@ -0,0 +1,38 @@
+Description: fixes race condition
+Author: Stefan Bühler <buehler@cert.uni-stuttgart.de>
+Origin: libffi_3.2.1-9.debian.tar.xz
+
+From 48d2e46528fb6e621d95a7fa194069fd136b712d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Stefan=20B=C3=BChler?= <buehler@cert.uni-stuttgart.de>
+Date: Wed, 7 Sep 2016 15:49:48 +0200
+Subject: [PATCH 1/2] dlmmap_locked always needs locking as it always modifies
+ execsize
+
+---
+ src/closures.c | 13 ++++---------
+ 1 file changed, 4 insertions(+), 9 deletions(-)
+
+--- src/closures.c
++++ src/closures.c
+@@ -568,16 +568,11 @@
+ 	 MREMAP_DUP and prot at this point.  */
+     }
+ 
+-  if (execsize == 0 || execfd == -1)
+-    {
+-      pthread_mutex_lock (&open_temp_exec_file_mutex);
+-      ptr = dlmmap_locked (start, length, prot, flags, offset);
+-      pthread_mutex_unlock (&open_temp_exec_file_mutex);
++  pthread_mutex_lock (&open_temp_exec_file_mutex);
++  ptr = dlmmap_locked (start, length, prot, flags, offset);
++  pthread_mutex_unlock (&open_temp_exec_file_mutex);
+ 
+-      return ptr;
+-    }
+-
+-  return dlmmap_locked (start, length, prot, flags, offset);
++  return ptr;
+ }
+ 
+ /* Release memory at the given address, as well as the corresponding
+

srcpkgs/libffi/patches/mipsen-r6.diff

@@ -0,0 +1,17 @@
+Description: fixes issue with aarch64
+Author: Debian packagers
+Origin: libffi_3.2.1-9.debian.tar.xz
+
+--- src/mips/n32.S
++++ src/mips/n32.S
+@@ -47,7 +47,9 @@
+ #ifdef __GNUC__
+ 	.abicalls
+ #endif
++#if !defined(__mips_isa_rev) || (__mips_isa_rev<6)
+ 	.set mips4
++#endif
+ 	.text
+ 	.align	2
+ 	.globl	ffi_call_N32
+

srcpkgs/libffi/template

@@ -1,7 +1,7 @@
 # Template file for 'libffi'
 pkgname=libffi
 version=3.2.1
-revision=5
+revision=6
 build_style=gnu-configure
 configure_args="--includedir=/usr/include --with-pic"
 checkdepends="dejagnu"