diff options
| -rw-r--r-- | package/perf/perf.mk | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/package/perf/perf.mk b/package/perf/perf.mk index eed30a289..4356f5db5 100644 --- a/package/perf/perf.mk +++ b/package/perf/perf.mk @@ -28,6 +28,18 @@ else endif define PERF_BUILD_CMDS + $(Q)if test ! -f $(LINUX_DIR)/tools/perf/Makefile ; then \ + echo "Your kernel version is too old and does not have the perf tool." ; \ + echo "At least kernel 2.6.31 must be used." ; \ + exit 1 ; \ + fi + $(Q)if test "$(BR2_PACKAGE_ELFUTILS)" = "" ; then \ + if ! grep -q NO_LIBELF $(LINUX_DIR)/tools/perf/Makefile ; then \ + echo "The perf tool in your kernel cannot be built without libelf." ; \ + echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \ + exit 1 ; \ + fi \ + fi $(MAKE) -C $(LINUX_DIR)/tools/perf \ $(PERF_MAKE_FLAGS) O=$(@D) endef |