scripts/gdb: initial clk support: lx-clk-summary

# SPDX-License-Identifier: GPL-2.0

#

# Copyright (c) NXP 2019

import gdb

import sys

from linux import utils, lists

clk_core_type = utils.CachedType("struct clk_core")

def clk_core_for_each_child(hlist_head):

    return lists.hlist_for_each_entry(hlist_head,

            clk_core_type.get_type().pointer(), "child_node")

class LxClkSummary(gdb.Command):

    """Print Linux kernel log buffer."""

    def __init__(self):

        super(LxClkSummary, self).__init__("lx-clk-summary", gdb.COMMAND_DATA)

    def show_subtree(self, clk, level):

        gdb.write("%*s%-*s %7d %8d %8d\n" % (

                level * 3 + 1, "",

                30 - level * 3,

                clk['name'].string(),

                clk['enable_count'],

                clk['prepare_count'],

                clk['protect_count']))

        for child in clk_core_for_each_child(clk['children']):

            self.show_subtree(child, level + 1)

    def invoke(self, arg, from_tty):

        gdb.write("                                 enable  prepare  protect\n")

        gdb.write("   clock                          count    count    count\n")

        gdb.write("---------------------------------------------------------\n")

        for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_root_list")):

            self.show_subtree(clk, 0)

        for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_orphan_list")):

            self.show_subtree(clk, 0)

LxClkSummary()

    import linux.proc

    import linux.constants

    import linux.timerlist

    import linux.clk