px4iofirmware: disable perf counters in IO (HOTFIX)

we are running desperately short of memory in px4io. With a complex fixed wing setup using 12 channels we are running out of memory due to mixers for failsafe. Disabling perf counters saves us 800 bytes of memory
ArduPilot · Mar 24, 2016 · f11d76c · f11d76c
1 parent 9be7831
commit f11d76c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/modules/px4iofirmware/px4io.h b/src/modules/px4iofirmware/px4io.h
@@ -48,6 +48,12 @@
 
 #include <systemlib/pwm_limit/pwm_limit.h>
 
+/*
+  hotfix: we are critically short of memory in px4io and this is the
+  easiest way to reclaim about 800 bytes.
+ */
+#define perf_alloc(a,b) NULL
+
 /*
  * Constants and limits.
  */