From 7badf645b30a9b93655dde7788fdcf70bbc1bf47 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Fri, 20 May 2016 21:17:54 -0400
Subject: [PATCH] fix missing stack check instrument_flags (#4593)

---
 cmake/nuttx/px4_impl_nuttx.cmake | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/cmake/nuttx/px4_impl_nuttx.cmake b/cmake/nuttx/px4_impl_nuttx.cmake
index b9112a4c949f..8ceddfe44af5 100644
--- a/cmake/nuttx/px4_impl_nuttx.cmake
+++ b/cmake/nuttx/px4_impl_nuttx.cmake
@@ -439,6 +439,16 @@ function(px4_os_add_flags)
 
 	set(added_exe_linker_flags) # none currently
 
+	set(instrument_flags)
+	if ("${config_nuttx_hw_stack_check_${BOARD}}" STREQUAL "y")
+		set(instrument_flags
+			-finstrument-functions
+			-ffixed-r10
+			)
+		list(APPEND c_flags ${instrument_flags})
+		list(APPEND cxx_flags ${instrument_flags})
+	endif()
+
 	set(cpu_flags)
 	if (${BOARD} STREQUAL "px4fmu-v1")
 		set(cpu_flags