Merge branch 'cmake-mc' of github.com:mcharleb/Firmware into cmake-2

Tools/px_generate_params.py

@@ -2,52 +2,86 @@
 import xml.etree.ElementTree as ET
 import os
 
-if len(os.sys.argv) != 3:
+if len(os.sys.argv) != 2:
 	print "Error in %s" % os.sys.argv[0]
-	print "Usage: %s <parameters.xml> <parameters.c>"
+	print "Usage: %s <parameters.xml>"
 	raise SystemExit
 
-fp = open(os.sys.argv[2], "w")
+fp_header = open("px4_parameters.h", "w")
+fp_src = open("px4_parameters.c", "w")
 
 tree = ET.parse(os.sys.argv[1])
 root = tree.getroot()
-body = """
+
+# Generate the header file content
+header = """
 #include <stdint.h>
 #include <systemlib/param/param.h>
 
 // DO NOT EDIT
 // This file is autogenerated from paramaters.xml
 
+struct px4_parameters_t {
 """
-
 start_name = ""
 end_name = ""
 
 for group in root:
 	if group.tag == "group":
-		body += "// %s\n" % group.attrib["name"]
+		header += """
+	/*****************************************************************
+	 * %s
+	 ****************************************************************/""" % group.attrib["name"]
 		for param in group:
 			if not start_name:
 				start_name = param.attrib["name"]
 			end_name = param.attrib["name"]
-			body += """ 
+			header += """
+	const struct param_info_s __param__%s;""" % param.attrib["name"]
+header += """
+	const unsigned int param_count;
+};
+
+extern const struct px4_parameters_t px4_parameters;
+"""
+
+# Generate the C file content
+src = """
+#include <px4_parameters.h>
+
+// DO NOT EDIT
+// This file is autogenerated from paramaters.xml
+
 static const 
 __attribute__((used, section("__param")))
-struct param_info_s __param__%s = {
-	"%s",
-	PARAM_TYPE_%s,
-	.val.f = %s
+struct px4_parameters_t px4_parameters_impl = {
+"""
+i=0
+for group in root:
+	if group.tag == "group":
+		src += """
+	/*****************************************************************
+	 * %s
+	 ****************************************************************/""" % group.attrib["name"]
+		for param in group:
+			if not start_name:
+				start_name = param.attrib["name"]
+			end_name = param.attrib["name"]
+			i+=1
+			src += """
+	{
+		"%s",
+		PARAM_TYPE_%s,
+		.val.f = %s
+	},
+""" % (param.attrib["name"], param.attrib["type"], param.attrib["default"])
+src += """
+	%d
 };
-""" % (param.attrib["name"], param.attrib["name"], param.attrib["type"], param.attrib["default"])
-body += """
-extern const
-__attribute__((alias("__param__%s")))
-struct param_info_s __param_start;
-
-extern const
-__attribute__((alias("__param__%s")))
-struct param_info_s __param_end;
-""" % (start_name, end_name)
-
-fp.write(body)
+
+extern const struct px4_parameters_t px4_parameters __attribute__((alias("px4_parameters_impl")));
+""" % i
+
+fp_header.write(header)
+fp_src.write(src)
 

cmake/common/px4_base.cmake

@@ -682,7 +682,7 @@ function(px4_generate_parameters)
 		)
 
 	execute_process(
-		COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/Tools/px_generate_params.py ${CMAKE_BINARY_DIR}/parameters.xml ${CMAKE_BINARY_DIR}/parameters.c
+		COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/Tools/px_generate_params.py ${CMAKE_BINARY_DIR}/parameters.xml
 		)
 endfunction()
 

src/firmware/posix/CMakeLists.txt

@@ -9,7 +9,7 @@ px4_generate_parameters()
 
 add_executable(mainapp
 	${CMAKE_SOURCE_DIR}/src/platforms/posix/main.cpp
-	${CMAKE_BINARY_DIR}/parameters.c
+	${CMAKE_BINARY_DIR}/px4_parameters.c
 	apps.h
 	)
 

src/modules/systemlib/param/param.c

@@ -63,6 +63,7 @@
 
 #include "uORB/uORB.h"
 #include "uORB/topics/parameter_update.h"
+#include "px4_parameters.h"
 
 #if 0
 # define debug(fmt, args...)		do { warnx(fmt, ##args); } while(0)
@@ -86,14 +87,11 @@ extern struct param_info_s	param_array[];
 extern struct param_info_s	*param_info_base;
 extern struct param_info_s	*param_info_limit;
 #else
-extern const struct param_info_s __param_start, __param_end;
-
 // FIXME - start and end are reversed
-static const struct param_info_s *param_info_base = &__param_end;
-static const struct param_info_s *param_info_limit = &__param_start;
+static const struct param_info_s *param_info_base = (const struct param_info_s *)&px4_parameters;
 #endif
 
-#define	param_info_count		((unsigned)(param_info_limit - param_info_base))
+#define	param_info_count		px4_parameters.param_count
 
 /**
  * Storage for modified parameters.