diff options
author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-05-15 00:46:11 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-15 04:52:52 +0200 |
commit | 988b2686159759401a4549d0fc30ff9a8758391a (patch) | |
tree | 4f5b16aea3f51fdf257e5b4d3bf00e039d6cf3df | |
parent | scripts/gdb: initial clk support: lx-clk-summary (diff) | |
download | linux-988b2686159759401a4549d0fc30ff9a8758391a.tar.xz linux-988b2686159759401a4549d0fc30ff9a8758391a.zip |
scripts/gdb: add $lx_clk_core_lookup function
Finding an individual clk_core requires walking the tree which can be
quite complicated so add a helper for easy access.
(gdb) print *(struct clk_scu*)$lx_clk_core_lookup("uart0_clk")->hw
Link: http://lkml.kernel.org/r/Message-ID:
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | scripts/gdb/linux/clk.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/gdb/linux/clk.py b/scripts/gdb/linux/clk.py index a9129d865c5d..6bf71976b55d 100644 --- a/scripts/gdb/linux/clk.py +++ b/scripts/gdb/linux/clk.py @@ -44,3 +44,26 @@ class LxClkSummary(gdb.Command): LxClkSummary() + + +class LxClkCoreLookup(gdb.Function): + """Find struct clk_core by name""" + + def __init__(self): + super(LxClkCoreLookup, self).__init__("lx_clk_core_lookup") + + def lookup_hlist(self, hlist_head, name): + for child in clk_core_for_each_child(hlist_head): + if child['name'].string() == name: + return child + result = self.lookup_hlist(child['children'], name) + if result: + return result + + def invoke(self, name): + name = name.string() + return (self.lookup_hlist(gdb.parse_and_eval("clk_root_list"), name) or + self.lookup_hlist(gdb.parse_and_eval("clk_orphan_list"), name)) + + +LxClkCoreLookup() |