Bump buidlroot version to 2018.02.6

bsp/buildroot/package/gdb/8.0.1/0004-nat-linux-ptrace.c-add-missing-gdb_byte-cast.patch

@@ -0,0 +1,41 @@
+From 09a2c3e0164545324a1ddee70f5c9fdee71e2079 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Sun, 18 Jun 2017 23:09:43 +0200
+Subject: [PATCH] nat/linux-ptrace.c: add missing gdb_byte* cast
+
+On noMMU platforms, the following code gets compiled:
+
+  child_stack = xmalloc (STACK_SIZE * 4);
+
+Where child_stack is a gdb_byte*, and xmalloc() returns a void*. While
+the lack of cast is valid in C, it is not in C++, causing the
+following build failure:
+
+../nat/linux-ptrace.c: In function 'int linux_fork_to_function(gdb_byte*, int (*)(void*))':
+../nat/linux-ptrace.c:273:29: error: invalid conversion from 'void*' to 'gdb_byte* {aka unsigned char*}' [-fpermissive]
+       child_stack = xmalloc (STACK_SIZE * 4);
+
+Therefore, this commit adds the appropriate cast.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+[Upstream commit: ffce45d2243e5f52f411e314fc4e1a69f431a81f]
+---
+ gdb/nat/linux-ptrace.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gdb/nat/linux-ptrace.c b/gdb/nat/linux-ptrace.c
+index 3447e07..33833e2 100644
+--- a/gdb/nat/linux-ptrace.c
++++ b/gdb/nat/linux-ptrace.c
+@@ -270,7 +270,7 @@ linux_fork_to_function (gdb_byte *child_stack, int (*function) (void *))
+ #define STACK_SIZE 4096
+ 
+     if (child_stack == NULL)
+-      child_stack = xmalloc (STACK_SIZE * 4);
++      child_stack = (gdb_byte*) xmalloc (STACK_SIZE * 4);
+ 
+     /* Use CLONE_VM instead of fork, to support uClinux (no MMU).  */
+ #ifdef __ia64__
+-- 
+2.9.4
+