u-boot-variscite: Fix build with gcc 7

Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>

recipes-bsp/u-boot/u-boot-variscite-2015.04/kernel-gcc7.patch

@@ -0,0 +1,69 @@
+diff --git a/include/linux/compiler-gcc7.h b/include/linux/compiler-gcc7.h
+new file mode 100644
+index 0000000..ba064fa
+--- /dev/null
++++ b/include/linux/compiler-gcc7.h
+@@ -0,0 +1,59 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc7.h> directly, include <linux/compiler.h> instead."
++#endif
++
++#define __used				__attribute__((__used__))
++#define __must_check			__attribute__((warn_unused_result))
++#define __compiler_offsetof(a, b)	__builtin_offsetof(a, b)
++
++/* Mark functions as cold. gcc will assume any path leading to a call
++   to them will be unlikely.  This means a lot of manual unlikely()s
++   are unnecessary now for any paths leading to the usual suspects
++   like BUG(), printk(), panic() etc. [but let's keep them for now for
++   older compilers]
++
++   gcc also has a __attribute__((__hot__)) to move hot functions into
++   a special section, but I don't see any sense in this right now in
++   the kernel context */
++#define __cold			__attribute__((__cold__))
++
++#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
++
++#ifndef __CHECKER__
++# define __compiletime_warning(message) __attribute__((warning(message)))
++# define __compiletime_error(message) __attribute__((error(message)))
++#endif /* __CHECKER__ */
++
++/*
++ * Mark a position in code as unreachable.  This can be used to
++ * suppress control flow warnings after asm blocks that transfer
++ * control elsewhere.
++ */
++#define unreachable() __builtin_unreachable()
++
++/* Mark a function definition as prohibited from being cloned. */
++#define __noclone	__attribute__((__noclone__))
++
++/*
++ * Tell the optimizer that something else uses this function or variable.
++ */
++#define __visible __attribute__((externally_visible))
++
++/*
++ * GCC 'asm goto' miscompiles certain code sequences:
++ *
++ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
++ *
++ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
++ *
++ * (asm goto is automatically volatile - the naming reflects this.)
++ */
++#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
++
++#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
++#define __HAVE_BUILTIN_BSWAP32__
++#define __HAVE_BUILTIN_BSWAP64__
++#define __HAVE_BUILTIN_BSWAP16__
++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
++
++#define KASAN_ABI_VERSION 4
+-- 
+2.1.0
+
+  

recipes-bsp/u-boot/u-boot-variscite_2015.04.bb

@@ -14,7 +14,7 @@ SRCBRANCH = "imx_v2015.04_4.1.15_1.1.0_ga_var01"
 
 SRC_URI = "\
     git://github.com/varigit/uboot-imx.git;protocol=git;branch=${SRCBRANCH} \
-    file://Fix-the-compile-issue-under-gcc6.patch \
+    file://kernel-gcc7.patch \
 "
 
 S = "${WORKDIR}/git"