u-boot: fix build error under gcc6

Fix the following build error under gcc6:
| ../include/linux/compiler-gcc.h:114:30: fatal error: linux/compiler-gcc6.h: No such file or directory
|  #include gcc_header(__GNUC__)

Signed-off-by: Zhenhua Luo <zhenhua.luo@nxp.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

2 files changed, 87 insertions, 0 deletions

diff --git a/recipes-bsp/u-boot/files/fix-build-error-under-gcc6.patch b/recipes-bsp/u-boot/files/fix-build-error-under-gcc6.patch
new file mode 100644
index 00000000..839cd7df
--- /dev/null
+++ b/recipes-bsp/u-boot/files/fix-build-error-under-gcc6.patch
@@ -0,0 +1,86 @@
+fix build error under gcc6
+
+Fix the following error:
+| ../include/linux/compiler-gcc.h:114:30: fatal error: linux/compiler-gcc6.h: No such file or directory
+|  #include gcc_header(__GNUC__)
+
+Signed-off-by: Zhenhua Luo <zhenhua.luo@nxp.com>
+
+Upstream-Status: Pending
+---
+ include/linux/compiler-gcc6.h | 65 +++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 65 insertions(+)
+ create mode 100644 include/linux/compiler-gcc6.h
+
+diff --git a/include/linux/compiler-gcc6.h b/include/linux/compiler-gcc6.h
+new file mode 100644
+index 0000000..c8c5659
+--- /dev/null
++++ b/include/linux/compiler-gcc6.h
+@@ -0,0 +1,65 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc5.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]
++
++   Early snapshots of gcc 4.3 don't support this and we can't detect this
++   in the preprocessor, but we can live with this because they're unreleased.
++   Maketime probing would be overkill here.
++
++   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.
++ *
++ * Early snapshots of gcc 4.5 don't support this and we can't detect
++ * this in the preprocessor, but we can live with this because they're
++ * unreleased.  Really, we need to have autoconf for the kernel.
++ */
++#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 */
+-- 
diff --git a/recipes-bsp/u-boot/u-boot-qoriq_2015.01.bb b/recipes-bsp/u-boot/u-boot-qoriq_2015.01.bb
index bfea3327..8b20b5ad 100644
--- a/recipes-bsp/u-boot/u-boot-qoriq_2015.01.bb
+++ b/recipes-bsp/u-boot/u-boot-qoriq_2015.01.bb
@@ -26,6 +26,7 @@ SRCBRANCH = "sdk-v1.9.x"
 SRC_URI = "git://git.freescale.com/ppc/sdk/u-boot.git;branch=${SRCBRANCH} \
     file://gcc5.patch \
     file://add-fgnu89-inline-option-for-gcc5.patch \
+    file://fix-build-error-under-gcc6.patch \
 "
 SRCREV = "eb3d4fc5759729d7af71ac31ebf6a7e8d0e79da3"