kernel,u-boot: Fix builds for max10/nios2

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-altera-ltsi/0001-compiler-gcc-disable-ftracer-for-__noclone-functions.patch b/recipes-kernel/linux/linux-altera-ltsi/0001-compiler-gcc-disable-ftracer-for-__noclone-functions.patch
new file mode 100644
index 0000000..338011e
--- /dev/null
+++ b/recipes-kernel/linux/linux-altera-ltsi/0001-compiler-gcc-disable-ftracer-for-__noclone-functions.patch
@@ -0,0 +1,45 @@
+From 9b561b878bc40703e21144def6a5c2c8d436b883 Mon Sep 17 00:00:00 2001
+From: Paolo Bonzini <pbonzini@redhat.com>
+Date: Thu, 31 Mar 2016 09:38:51 +0200
+Subject: [PATCH] compiler-gcc: disable -ftracer for __noclone functions
+
+[ Upstream commit 95272c29378ee7dc15f43fa2758cb28a5913a06d ]
+
+-ftracer can duplicate asm blocks causing compilation to fail in
+noclone functions.  For example, KVM declares a global variable
+in an asm like
+
+    asm("2: ... \n
+         .pushsection data \n
+         .global vmx_return \n
+         vmx_return: .long 2b");
+
+and -ftracer causes a double declaration.
+
+Cc: Andrew Morton <akpm@linux-foundation.org>
+Cc: Michal Marek <mmarek@suse.cz>
+Cc: stable@vger.kernel.org
+Cc: kvm@vger.kernel.org
+Reported-by: Linda Walsh <lkml@tlinx.org>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
+---
+ include/linux/compiler-gcc.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
+index 484ef6e..27fa573 100644
+--- a/include/linux/compiler-gcc.h
++++ b/include/linux/compiler-gcc.h
+@@ -192,7 +192,7 @@
+ #define unreachable() __builtin_unreachable()
+ 
+ /* Mark a function definition as prohibited from being cloned. */
+-#define __noclone      __attribute__((__noclone__))
++#define __noclone      __attribute__((__noclone__, __optimize__("no-tracer")))
+ 
+ #endif /* GCC_VERSION >= 40500 */
+ 
+-- 
+2.8.2
+