--- /dev/null
+PERF_FEATURES_ENABLE ?= "perf-scripting perf-tui"
+
+def perf_feature_enabled(feature, trueval, falseval, d):
+ """
+ Check which perf features are enabled.
+
+ The PERF_FEATURES_ENABLE variable lists the perf features to
+ enable. Override it if you want something different from what's
+ listed above, which is the default. If empty, the build won't
+ enable any features (which may be exactly what you want, just a
+ barebones perf without any extra baggage, what you get if you
+ specify an empty feature list).
+
+ Available perf features:
+ perf-scripting: enable support for Perl and Python bindings
+ perf-tui: enable support for the perf TUI (via libnewt)
+
+ """
+ enabled_features = d.getVar("PERF_FEATURES_ENABLE", True) or ""
+ if feature in enabled_features:
+ return trueval
+ return falseval
