Fix build of u-boot with gcc6 on morty

Add header file for gcc6 to u-boot.

Change-Id: Idc5b95f2b41a7c0468b5b07883bcf11d4b48b164
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>

4 files changed, 179 insertions, 4 deletions

diff --git a/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript.bb b/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript.bb
index 82d0410..e2ccc43 100644
--- a/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript.bb
+++ b/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript.bb
@@ -7,8 +7,10 @@ DEPENDS = "u-boot-mkimage-native"
 COMPATIBLE_MACHINE = "raspberrypi"
 
 SRC_URI = "file://boot.scr \
-	   file://uEnv.txt \
-	   file://uEnv.cma.txt"
+           file://uEnv.txt \
+           file://uEnv.cma.txt \
+           file://0001-fixup-build-with-gcc6.patch \
+          "
 
 S = "${WORKDIR}"
 
diff --git a/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript/0001-fixup-build-with-gcc6.patch b/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript/0001-fixup-build-with-gcc6.patch
new file mode 100644
index 0000000..df1f786
--- /dev/null
+++ b/meta-sota/recipes-bsp/u-boot-otascript/u-boot-otascript/0001-fixup-build-with-gcc6.patch
@@ -0,0 +1,86 @@
+From ba619c7ec7820e80d1b5b520440fdb81c31c0baf Mon Sep 17 00:00:00 2001
+From: Ronan Le Martret <ronan.lemartret@iot.bzh>
+Date: Fri, 14 Oct 2016 09:03:11 +0200
+Subject: [PATCH] fix gcc6 build
+
+Signed-off-by: ronan <ronan@linux-pgnz.suse>
+---
+ include/linux/compiler-gcc6.h | 66 +++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 66 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..a3d00d8
+--- /dev/null
++++ b/include/linux/compiler-gcc6.h
+@@ -0,0 +1,66 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc6.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.
++ * Fixed in GCC 4.8.2 and later versions.
++ *
++ * (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 */
+-- 
+2.6.6
+
diff --git a/meta-sota/recipes-bsp/u-boot/u-boot-ota/0001-fixup-build-with-gcc6.patch b/meta-sota/recipes-bsp/u-boot/u-boot-ota/0001-fixup-build-with-gcc6.patch
new file mode 100644
index 0000000..df1f786
--- /dev/null
+++ b/meta-sota/recipes-bsp/u-boot/u-boot-ota/0001-fixup-build-with-gcc6.patch
@@ -0,0 +1,86 @@
+From ba619c7ec7820e80d1b5b520440fdb81c31c0baf Mon Sep 17 00:00:00 2001
+From: Ronan Le Martret <ronan.lemartret@iot.bzh>
+Date: Fri, 14 Oct 2016 09:03:11 +0200
+Subject: [PATCH] fix gcc6 build
+
+Signed-off-by: ronan <ronan@linux-pgnz.suse>
+---
+ include/linux/compiler-gcc6.h | 66 +++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 66 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..a3d00d8
+--- /dev/null
++++ b/include/linux/compiler-gcc6.h
+@@ -0,0 +1,66 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc6.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.
++ * Fixed in GCC 4.8.2 and later versions.
++ *
++ * (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 */
+-- 
+2.6.6
+
diff --git a/meta-sota/recipes-bsp/u-boot/u-boot-ota_2015.07.bb b/meta-sota/recipes-bsp/u-boot/u-boot-ota_2015.07.bb
index ab5d403..dfa0631 100644
--- a/meta-sota/recipes-bsp/u-boot/u-boot-ota_2015.07.bb
+++ b/meta-sota/recipes-bsp/u-boot/u-boot-ota_2015.07.bb
@@ -10,8 +10,9 @@ LIC_FILES_CHKSUM = "file://Licenses/README;md5=0507cd7da8e7ad6d6701926ec9b84c95"
 SRCREV = "baba2f57e8f4ed3fa67fe213d22da0de5e00f204"
 
 SRC_URI += "file://0001-Set-up-environment-for-OSTree-integration.patch \
-	    file://0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch \
-	    "
+            file://0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch \
+            file://0001-fixup-build-with-gcc6.patch \
+           "
 
 PV = "v2015.07+git${SRCPV}"