tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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scripts/gdb: bail early if there are no clocks

Avoid generating an exception if there are no clocks registered:

(gdb) lx-clk-summary
enable prepare protect
clock count count count rate
------------------------------------------------------------------------
Python Exception <class 'gdb.error'>: No symbol "clk_root_list" in
current context.
Error occurred in Python: No symbol "clk_root_list" in current context.

Link: https://lkml.kernel.org/r/20230323225246.3302977-1-f.fainelli@gmail.com
Fixes: d1e9710b63d8 ("scripts/gdb: initial clk support: lx-clk-summary")
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>

authored by

Florian Fainelli and committed by
Andrew Morton 1d7adbc7 fb15abdc

+2
+2
scripts/gdb/linux/clk.py
··· 41 41 self.show_subtree(child, level + 1) 42 42 43 43 def invoke(self, arg, from_tty): 44 + if utils.gdb_eval_or_none("clk_root_list") is None: 45 + raise gdb.GdbError("No clocks registered") 44 46 gdb.write(" enable prepare protect \n") 45 47 gdb.write(" clock count count count rate \n") 46 48 gdb.write("------------------------------------------------------------------------\n")