Commit 30ac77e9 authored Mar 23, 2023 by Florian Fainelli Committed by Greg Kroah-Hartman May 17, 2023

scripts/gdb: bail early if there are no generic PD

[ Upstream commit f19c3c2959e465209ade1a7a699e6cbf4359ce78 ]

Avoid generating an exception if there are no generic power domain(s)
registered:

(gdb) lx-genpd-summary
domain                          status          children
    /device                                             runtime status
----------------------------------------------------------------------
Python Exception <class 'gdb.error'>: No symbol "gpd_list" in current context.
Error occurred in Python: No symbol "gpd_list" in current context.
(gdb) quit

[f.fainelli@gmail.com: correctly invoke gdb_eval_or_none]
  Link: https://lkml.kernel.org/r/20230327185746.3856407-1-f.fainelli@gmail.com
Link: https://lkml.kernel.org/r/20230323231659.3319941-1-f.fainelli@gmail.com


Fixes: 8207d4a8 ("scripts/gdb: add lx-genpd-summary command")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 35a2681e

scripts/gdb/linux/genpd.py

+3 −1

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@
		import gdb
		import sys

		from linux.utils import CachedType
		from linux.utils import CachedType, gdb_eval_or_none
		from linux.lists import list_for_each_entry

		generic_pm_domain_type = CachedType('struct generic_pm_domain')
		@@ -70,6 +70,8 @@ Output is similar to /sys/kernel/debug/pm_genpd/pm_genpd_summary'''
		gdb.write(' %-50s %s\n' % (kobj_path, rtpm_status_str(dev)))

		def invoke(self, arg, from_tty):
		if gdb_eval_or_none("&gpd_list") is None:
		raise gdb.GdbError("No power domain(s) registered")
		gdb.write('domain status children\n');
		gdb.write(' /device runtime status\n');
		gdb.write('----------------------------------------------------------------------\n');