Diff: mbed-os/tools/flash_algo/extract.py

Revision:

0:9fca2b23d0ba

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/tools/flash_algo/extract.py	Sat Feb 23 12:13:36 2019 +0000
@@ -0,0 +1,107 @@
+#!/usr/bin/env python
+"""
+ mbed
+ Copyright (c) 2017-2017 ARM Limited
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+"""
+
+from __future__ import print_function
+import sys
+import os
+import argparse
+from os.path import join, abspath, dirname
+from flash_algo import PackFlashAlgo
+
+# Be sure that the tools directory is in the search path
+ROOT = abspath(join(dirname(__file__), "..", ".."))
+sys.path.insert(0, ROOT)
+
+from tools.targets import TARGETS
+from tools.arm_pack_manager import Cache
+
+TEMPLATE_PATH = "c_blob_mbed.tmpl"
+
+
+def main():
+    """Generate flash algorithms"""
+    parser = argparse.ArgumentParser(description='Flash generator')
+    parser.add_argument("--rebuild_all", action="store_true",
+                        help="Rebuild entire cache")
+    parser.add_argument("--rebuild_descriptors", action="store_true",
+                        help="Rebuild descriptors")
+    parser.add_argument("--target", default=None,
+                        help="Name of target to generate algo for")
+    parser.add_argument("--all", action="store_true",
+                        help="Build all flash algos for devcies")
+    args = parser.parse_args()
+
+    cache = Cache(True, True)
+    if args.rebuild_all:
+        cache.cache_everything()
+        print("Cache rebuilt")
+        return
+
+    if args.rebuild_descriptors:
+        cache.cache_descriptors()
+        print("Descriptors rebuilt")
+        return
+
+    if args.target is None:
+        device_and_filenames = [(target.device_name, target.name) for target
+                                in TARGETS if hasattr(target, "device_name")]
+    else:
+        device_and_filenames = [(args.target, args.target.replace("/", "-"))]
+
+    try:
+        os.mkdir("output")
+    except OSError:
+        # Directory already exists
+        pass
+
+    for device, filename in device_and_filenames:
+        dev = cache.index[device]
+        binaries = cache.get_flash_algorthim_binary(device, all=True)
+        algos = [PackFlashAlgo(binary.read()) for binary in binaries]
+        filtered_algos = algos if args.all else filter_algos(dev, algos)
+        for idx, algo in enumerate(filtered_algos):
+            file_name = ("%s_%i.c" % (filename, idx)
+                         if args.all or len(filtered_algos) != 1
+                         else "%s.c" % filename)
+            output_path = join("output", file_name)
+            algo.process_template(TEMPLATE_PATH, output_path)
+        print("%s: %s      \r" % (device, filename))
+
+
+def filter_algos(dev, algos):
+    if "memory" not in dev:
+        return algos
+    if "IROM1" not in dev["memory"]:
+        return algos
+    if "IROM2" in dev["memory"]:
+        return algos
+
+    rom_rgn = dev["memory"]["IROM1"]
+    try:
+        start = int(rom_rgn["start"], 0)
+        size = int(rom_rgn["size"], 0)
+    except ValueError:
+        return algos
+
+    matching_algos = [algo for algo in algos if 
+                      algo.flash_start == start and algo.flash_size == size]
+    return matching_algos if len(matching_algos) == 1 else algos
+
+
+if __name__ == '__main__':
+    main()