sysprof: add system-wide performance profiler for Linux.

[sgw@linux.intel.com: alpha'ed poky-default-revision.inc and fix commit message]
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/meta/recipes-kernel/sysprof/files/rmb-arm.patch b/meta/recipes-kernel/sysprof/files/rmb-arm.patch
new file mode 100644
index 0000000000..60e7f707a3
--- /dev/null
+++ b/meta/recipes-kernel/sysprof/files/rmb-arm.patch
@@ -0,0 +1,18 @@
+Index: git/util.h
+===================================================================
+--- git.orig/util.h     2010-12-07 22:41:57.156243001 -0600
++++ git/util.h  2010-12-07 22:43:47.616243002 -0600
+@@ -37,4 +37,13 @@
+ #define cpu_relax()     asm volatile("" ::: "memory");
+ #endif
+ 
++#ifdef __arm__
++/*
++ * Use the __kuser_memory_barrier helper in the CPU helper page. See
++ * arch/arm/kernel/entry-armv.S in the kernel source for details.
++ */
++#define rmb()          ((void(*)(void))0xffff0fa0)()
++#define cpu_relax()    asm volatile("":::"memory")
++#endif
++
+ #endif