Re: [Gumstix-users] Issue with bitbake under Fedora 20

[Scott E. <sc...@ju...>]

I don't use the Gumstix repos, but did you explicitly add perf to
your image?

When I wanted to use perf, I had to add a little kernel patch like
this to get around that path problem building perf with Yocto. 
Could be you could do the fix in the perf recipe, but I was just
playing around and this was easy.

--- patch ---
diff --git git/tools/perf/util/evsel.c-orig git/tools/perf/util/evsel.c
index 9f6cebd..d5491f1 100644
--- git/tools/perf/util/evsel.c-orig
+++ git/tools/perf/util/evsel.c
@@ -15,7 +15,7 @@
 #include "cpumap.h"
 #include "thread_map.h"
 #include "target.h"
-#include "../../include/linux/perf_event.h"
+#include "../../../include/linux/perf_event.h"

 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
 #define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0))
--- patch ---

I also needed this set in the kernel config to use it

CONFIG_OMAP3_EMU=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_EVENTS=y
CONFIG_HW_PERF_EVENTS=y
CONFIG_CPU_HAS_PMU=y




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