From e12bce3a20a5dd3fb5984fc6e2a06147714c84e7 Mon Sep 17 00:00:00 2001
From: David Sidrane <David.Sidrane@NscDg.com>
Date: Wed, 26 Feb 2020 13:46:30 -0800
Subject: [PATCH] px4_add_board:Add Optional LINKER_PREFIX

---
 cmake/px4_add_board.cmake      | 9 +++++++++
 platforms/nuttx/CMakeLists.txt | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/cmake/px4_add_board.cmake b/cmake/px4_add_board.cmake
index 3d9de012be..e658e15479 100644
--- a/cmake/px4_add_board.cmake
+++ b/cmake/px4_add_board.cmake
@@ -57,6 +57,7 @@
 #			[ SERIAL_PORTS <list> ]
 #			[ CONSTRAINED_FLASH ]
 #			[ TESTING ]
+#			[ LINKER_PREFIX <string> ]
 #			)
 #
 #	Input:
@@ -78,6 +79,7 @@
 #		SERIAL_PORTS		: mapping of user configurable serial ports and param facing name
 #		CONSTRAINED_FLASH	: flag to enable constrained flash options (eg limit init script status text)
 #		TESTING			: flag to enable automatic inclusion of PX4 testing modules
+#		LINKER_PREFIX	: optional to prefix on the Linker script.
 #
 #
 #	Example:
@@ -140,6 +142,7 @@ function(px4_add_board)
 			IO
 			BOOTLOADER
 			UAVCAN_INTERFACES
+			LINKER_PREFIX
 		MULTI_VALUE
 			DRIVERS
 			MODULES
@@ -229,6 +232,12 @@ function(px4_add_board)
 		set(PX4_TESTING "1" CACHE INTERNAL "testing enabled" FORCE)
 	endif()
 
+	if(LINKER_PREFIX)
+		set(PX4_BOARD_LINKER_PREFIX ${LINKER_PREFIX} CACHE STRING "PX4 board linker prefix" FORCE)
+	else()
+		set(PX4_BOARD_LINKER_PREFIX "" CACHE STRING "PX4 board linker prefix" FORCE)
+	endif()
+
 	include(px4_impl_os)
 	px4_os_prebuild_targets(OUT prebuild_targets BOARD ${PX4_BOARD})
 
diff --git a/platforms/nuttx/CMakeLists.txt b/platforms/nuttx/CMakeLists.txt
index 66b6a8ea0e..9230453a2d 100644
--- a/platforms/nuttx/CMakeLists.txt
+++ b/platforms/nuttx/CMakeLists.txt
@@ -60,6 +60,10 @@ if("${PX4_BOARD_LABEL}" STREQUAL "bootloader")
 		bootloader_lib
 		drivers_board
 	)
+else()
+	if(NOT "${PX4_BOARD_LINKER_PREFIX}" STREQUAL "")
+		set(SCRIPT_PREFIX ${PX4_BOARD_LINKER_PREFIX}-)
+	endif()
 endif()
 
 list(APPEND nuttx_libs