fix gcc 5.2 nios2/tilegx toolchain building

toolchain/gcc/patches/5.2.0/fix-nios2.patch

@@ -0,0 +1,11 @@
+diff -Nur gcc-4.9.3.orig/libgcc/config/nios2/linux-atomic.c gcc-4.9.3/libgcc/config/nios2/linux-atomic.c
+--- gcc-4.9.3.orig/libgcc/config/nios2/linux-atomic.c	2014-01-02 23:25:22.000000000 +0100
++++ gcc-4.9.3/libgcc/config/nios2/linux-atomic.c	2015-12-01 22:50:00.029946306 +0100
+@@ -20,7 +20,6 @@
+ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ <http://www.gnu.org/licenses/>.  */
+ 
+-#include <asm/unistd.h>
+ #define EFAULT  14
+ #define EBUSY   16
+ #define ENOSYS  38

toolchain/gcc/patches/5.2.0/fix-tile.patch

@@ -0,0 +1,41 @@
+diff -Nur gcc-5.2.0.orig/gcc/config/tilegx/linux.h gcc-5.2.0/gcc/config/tilegx/linux.h
+--- gcc-5.2.0.orig/gcc/config/tilegx/linux.h	2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.2.0/gcc/config/tilegx/linux.h	2015-12-02 15:13:59.563521746 +0100
+@@ -55,8 +55,6 @@
+ /* For __clear_cache in libgcc2.c.  */
+ #ifdef IN_LIBGCC2
+ 
+-#include <arch/icache.h>
+-
+ /* Use the minimum page size of 4K.  Alternatively we can call
+    getpagesize() but it introduces a libc dependence.  */
+ #undef CLEAR_INSN_CACHE
+diff -Nur gcc-5.2.0.orig/libgcc/config/tilepro/atomic.h gcc-5.2.0/libgcc/config/tilepro/atomic.h
+--- gcc-5.2.0.orig/libgcc/config/tilepro/atomic.h	2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.2.0/libgcc/config/tilepro/atomic.h	2015-12-02 15:41:08.868942210 +0100
+@@ -46,6 +46,11 @@
+    The "exchange" and "compare and exchange" macros may also take
+    pointer values.  We use the pseudo-type "VAL" in the documentation
+    to indicate the use of an appropriate type.  */
++
++#ifndef SPR_CMPEXCH_VALUE
++#define SPR_CMPEXCH_VALUE 0x2780
++#endif
++
+ #else
+ /* Atomic instruction macros
+ 
+@@ -92,13 +97,6 @@
+    compare-and-exchange routine, so may be potentially less efficient.  */
+ #endif
+ 
+-#ifdef __tilegx__
+-#include <arch/spr_def.h>
+-#else
+-#include <asm/unistd.h>
+-#endif
+-
+-
+ /* 32-bit integer compare-and-exchange.  */
+ static __inline __attribute__ ((always_inline))
+      int arch_atomic_val_compare_and_exchange_4 (volatile int *mem,