From c2bc298409585aadce4b60dff5e6fada87c6c436 Mon Sep 17 00:00:00 2001
From: Pavel Kirienko <pavel.kirienko@gmail.com>
Date: Sat, 17 Jan 2015 20:40:09 +0300
Subject: [PATCH] Disable instrumentation for the uavcan module

---
 makefiles/toolchain_gnu-arm-eabi.mk | 2 +-
 src/modules/uavcan/module.mk        | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
index 1bbc5437d5..5a7f8390ff 100644
--- a/makefiles/toolchain_gnu-arm-eabi.mk
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -116,7 +116,7 @@ ARCHOPTIMIZATION	 = $(MAXOPTIMIZATION) \
 
 # enable precise stack overflow tracking
 # note - requires corresponding support in NuttX
-INSTRUMENTATIONDEFINES	 = $(ARCHINSTRUMENTATIONDEFINES_$(CONFIG_ARCH))
+INSTRUMENTATIONDEFINES	 ?= $(ARCHINSTRUMENTATIONDEFINES_$(CONFIG_ARCH))
 
 # Language-specific flags
 #
diff --git a/src/modules/uavcan/module.mk b/src/modules/uavcan/module.mk
index e5d30f6c47..64e60bd186 100644
--- a/src/modules/uavcan/module.mk
+++ b/src/modules/uavcan/module.mk
@@ -40,6 +40,8 @@ MODULE_COMMAND = uavcan
 
 MAXOPTIMIZATION = -Os
 
+INSTRUMENTATIONDEFINES = -fno-instrument-functions
+
 # Main
 SRCS += uavcan_main.cpp              \
         uavcan_clock.cpp             \