gdb/wdog: add basic wdog dump command

(gdb) wdog
WDog@0x404864e8: tick: 4294978078       0x402e36b0 <wdtest_callback> arg: 0x40462500
WDog@0x40462ef8: tick: 4294978078       0x402c7900 <nxsig_timeout> arg: 0x40462e70
WDog@0x40462d88: tick: 4294978078       0x402c7900 <nxsig_timeout> arg: 0x40462d00
WDog@0x4046e488: tick: 4294978079       0x402e36b0 <wdtest_callback> arg: 0x40462440
WDog@0x40462658: tick: 4294978079       0x402c7900 <nxsig_timeout> arg: 0x404625d0
(gdb)

Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>

tools/gdb/nuttxgdb/protocols/wdog.py

@@ -0,0 +1,35 @@
+############################################################################
+# tools/gdb/nuttxgdb/protocols/wdog.py
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you 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 annotations
+
+from .value import Value
+
+
+class WDog(Value):
+    """struct wdog_s"""
+
+    node: Value
+    arg: Value
+    func: Value
+    picbase: Value
+    expired: Value

tools/gdb/nuttxgdb/wdog.py

@@ -0,0 +1,67 @@
+############################################################################
+# tools/gdb/nuttxgdb/wdog.py
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you 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 annotations
+
+from typing import List
+
+import gdb
+
+from . import lists, utils
+from .protocols import wdog as p
+from .utils import Value
+
+
+class WDog(Value, p.WDog):
+    def __init__(self, wdog: p.WDog):
+        if wdog.type.code == gdb.TYPE_CODE_PTR:
+            wdog = wdog.dereference()
+        super().__init__(wdog)
+
+    def __repr__(self) -> str:
+        return (
+            f"WDog@{self.address:#x}: tick: {self.expired: <16}"
+            f" {self.func.format_string(styling=True)} arg: {self.arg:#x}"
+        )
+
+    def __str__(self) -> str:
+        return self.__repr__()
+
+
+def get_wdog_list() -> List[WDog]:
+    wdogs = []
+    active = utils.parse_and_eval("g_wdactivelist")
+    for wdog in lists.NxList(active, "struct wdog_s", "node"):
+        wdogs.append(WDog(wdog))
+
+    return wdogs
+
+
+class WDogDump(gdb.Command):
+    """Show wdog timer information"""
+
+    def __init__(self):
+        super().__init__("wdog", gdb.COMMAND_USER)
+
+    def invoke(self, arg, from_tty):
+        for wdog in get_wdog_list():
+            print(wdog)