perf: Depend on KERNEL_PERF_EVENTS
The kernel needs to have PERF_EVENTS built otherwise we will run into the following: root@(none):/# perf top perf_event_open(..., PERF_FLAG_FD_CLOEXEC) failed with unexpected error 89 (Function not implemented) perf_event_open(..., 0) failed unexpectedly with error 89 (Function not implemented) Error: The sys_perf_event_open() syscall returned with 89 (Function not implemented) for event (cycles). /bin/dmesg may provide additional information. No CONFIG_PERF_EVENTS=y kernel support configured? Make sure this functional dependency is captured. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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		| @@ -26,7 +26,7 @@ include $(INCLUDE_DIR)/package.mk | |||||||
| define Package/perf | define Package/perf | ||||||
|   SECTION:=devel |   SECTION:=devel | ||||||
|   CATEGORY:=Development |   CATEGORY:=Development | ||||||
|   DEPENDS:= +libelf1 +libdw +libpthread +librt +objdump @!LINUX_3_18 @!IN_SDK @!TARGET_arc770 |   DEPENDS:= +libelf1 +libdw +libpthread +librt +objdump @!LINUX_3_18 @!IN_SDK @!TARGET_arc770 @KERNEL_PERF_EVENTS | ||||||
|   TITLE:=Linux performance monitoring tool |   TITLE:=Linux performance monitoring tool | ||||||
|   VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE) |   VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE) | ||||||
|   URL:=http://www.kernel.org |   URL:=http://www.kernel.org | ||||||
|   | |||||||
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	 Florian Fainelli
					Florian Fainelli