Merge pull request #5 from rmspacefish/develop

Minor improvements

README.md

@@ -1,6 +1,6 @@
 # RTEMS CMake Build Support
 
-This repostiory contains the first version of a possible RTEMS CMake build aupport. The intention is to provide most CMake configuration to perform cross-compiling of RTEMS applications and provide a decent starting point for developers which would like to use RTEMS. The support has been written as generic as possible.
+This repository contains the first version of a possible RTEMS CMake build aupport. The intention is to provide most CMake configuration to perform cross-compiling of RTEMS applications and provide a decent starting point for developers which would like to build their RTEMS application with CMake. The support has been written as generic as possible.
 
 This is still a prototype. Simple applications have been tested, but it has not been attempted to link an additional library for an application yet.
 
@@ -36,7 +36,7 @@ This will disable the compiler checks for the standard C/C++ compiler.
 
 
 If this repository was cloned inside the application root, the path can be 
-set to `${CMAKE_CURRENT_SOURCE_DIRECTORY}`.
+set to `${CMAKE_CURRENT_SOURCE_DIRECTORY}/rtems-cmake`.
 
 After that, include the general configuration file with the following line:
 
@@ -47,7 +47,7 @@ include("${RTEMS_CONFIG_DIR}/RTEMSConfig.cmake")
 And then call the configuration function:
 
 ```sh
-rtems_general_config(${CMAKE_PROJECT_NAME} ${RTEMS_PREFIX} ${RTEMS_BSP})
+rtems_general_config(<TargetName> <RTEMS Prefix> <RTEMS BSP>)
 ```
 
 This function will call the the `rtems_generic_config` function internally to set up the cross-compiler, using the provided RTEMS prefix and the BSP name,

RTEMSConfig.cmake

@@ -40,7 +40,6 @@
 
 function(rtems_general_config TARGET_NAME RTEMS_PREFIX RTEMS_BSP_PAIR)
 
-	message(STATUS ${RTEMS_CONFIG_DIR})
 	if(NOT RTEMS_CONFIG_DIR) 
 		message(STATUS 
 			"RTEMS_CONFIG_DIR not set. Assuming  the CMake support was "
@@ -63,7 +62,7 @@ function(rtems_general_config TARGET_NAME RTEMS_PREFIX RTEMS_BSP_PAIR)
 	set(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER} PARENT_SCOPE)
 	set(CMAKE_ASM_COMPILER ${CMAKE_ASM_COMPILER} PARENT_SCOPE)
 	set(CMAKE_LINKER ${CMAKE_LINKER} PARENT_SCOPE)
-		
+
 	# I don't know what this is used for yet, but it might become handy
 	if(NOT ${CMAKE_SYSTEM_PROCESSOR} STREQUAL ${CMAKE_HOST_SYSTEM_PROCESSOR})
 		set(CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR} PARENT_SCOPE)

RTEMSGeneric.cmake

@@ -39,8 +39,20 @@ if (${NUM_EXTRA_RTEMS_ARGS} EQUAL 1)
 	set(RTEMS_PATH ${EXTRA_RTEMS_ARGS})
 endif()
 
+if(NOT RTEMS_PREFIX)
+	status(WARNING "No RTEMS prefix supplied!")
+endif()
+
+
 set(RTEMS_PREFIX ${RTEMS_PREFIX} CACHE FILEPATH "RTEMS prefix")
+get_filename_component(RTEMS_PREFIX "${RTEMS_PREFIX}" ABSOLUTE)
+set(RTEMS_PREFIX_ABS ${RTEMS_PREFIX} CACHE FILEPATH 
+	"RTEMS prefix (absolute path)"
+)
+
 set(RTEMS_BSP ${RTEMS_BSP} CACHE STRING "RTEMS BSP pair")
+
+
 option(RTEMS_VERBOSE "Verbose output for the RTEMS CMake support" FALSE)
 
 set(RTEMS_INSTALL 
@@ -174,7 +186,23 @@ if(NOT EXISTS "${RTEMS_LINKER}")
 		"${RTEMS_BIN_PATH}/${RTEMS_ARCH_VERSION_NAME}-ld")
 endif()
 
-message(STATUS "Checking done")
+message(STATUS "Checking for RTEMS objcopy utility..")
+set(RTEMS_OBJCOPY "${RTEMS_BIN_PATH}/${RTEMS_ARCH_VERSION_NAME}-objcopy")
+if(NOT EXISTS "${RTEMS_OBJCOPY}")
+	message(WARNING
+		"RTEMS ld linker  not found at "
+		"${RTEMS_BIN_PATH}/${RTEMS_ARCH_VERSION_NAME}-objcopy")
+endif()
+
+message(STATUS "Checking for RTEMS size utility..")
+set(RTEMS_SIZE "${RTEMS_BIN_PATH}/${RTEMS_ARCH_VERSION_NAME}-size")
+if(NOT EXISTS "${RTEMS_SIZE}")
+	message(WARNING
+		"RTEMS ld linker  not found at "
+		"${RTEMS_BIN_PATH}/${RTEMS_ARCH_VERSION_NAME}-size")
+endif()
+
+message(STATUS "Checking done.")
 
 ############################################
 # Info output
@@ -194,6 +222,9 @@ message(STATUS "RTEMS gcc compiler: ${RTEMS_GCC}")
 message(STATUS "RTEMS g++ compiler: ${RTEMS_GXX}")
 message(STATUS "RTEMS assembler: ${RTEMS_ASM}")
 message(STATUS "RTEMS linker: ${RTEMS_LINKER}")
+message(STATUS "RTEMS objcopy: ${RTEMS_OBJCOPY}")
+message(STATUS "RTEMS objcopy: ${RTEMS_SIZE}")
+
 
 if(${RTEMS_ARCH_NAME} STREQUAL "arm")
     set(CMAKE_SYSTEM_PROCESSOR arm PARENT_SCOPE)
@@ -207,6 +238,8 @@ set(CMAKE_C_COMPILER ${RTEMS_GCC} PARENT_SCOPE)
 set(CMAKE_CXX_COMPILER ${RTEMS_GXX} PARENT_SCOPE)
 set(CMAKE_ASM_COMPILER ${RTEMS_ASM} PARENT_SCOPE)
 set(CMAKE_LINKER ${RTEMS_LINKER} PARENT_SCOPE)
+set(RTEMS_OBJCOPY ${RTEMS_OBJCOPY} CACHE FILEPATH "RTEMS objcopy utilits")
+set(RTEMS_SIZE ${RTEMS_SIZE} CACHE FILEPATH "RTEMS size utility")
 
 # Variables set in the cache so they can be used everywhere.
 set(RTEMS_ARCH_NAME ${RTEMS_ARCH_NAME} CACHE FILEPATH "Architecture name")

RTEMSHardware.cmake

@@ -53,7 +53,22 @@ if(${RTEMS_SCAN_PKG_CONFIG})
 	set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:${RTEMS_PKG_FILE_PATH}")
 	pkg_check_modules(RTEMS_BSP_CONFIG "${RTEMS_PKG_MODULE_NAME}")
 
+	pkg_get_variable(RTEMS_BSP_CONFIG_PREFIX 
+		"${RTEMS_PKG_MODULE_NAME}" "prefix"
+	)
+	if(NOT "${RTEMS_BSP_CONFIG_PREFIX}" MATCHES "${RTEMS_PREFIX_ABS}")
+		message(WARNING 
+			"Specified RTEMS prefix and prefix read from "
+			"pkgconfig are different!"
+		)
+		message(WARNING 
+			"Consider adapting the pkg-config file manually if "
+			"the toolchain has moved and the build fails."
+		)
+	endif()
+
 	if(${RTEMS_VERBOSE})
+		message(STATUS "PKG prefix: ${RTEMS_BSP_CONFIG_PREFIX}")
 		message(STATUS "PKG configuration file found: ${RTEMS_BSP_CONFIG_FOUND}")
 		message(STATUS "Libraries: ${RTEMS_BSP_CONFIG_LIBRARIES}")
 		message(STATUS "Link libraries: ${_RTEMS_BSP_CONFIGLINK_LIBRARIES}")