ftrace: add debugfs entry 'failures'

Browse source

Identify functions which had their mcount call-site updates failed. This can
help us track functions which ftrace shouldn't fiddle with, and are thus not
being traced. If there is no race with any external agent which is modifying
the mcount call-site, then this file displays no entries (normal case).

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Abhishek Sagar 2008-06-01 21:47:54 +05:30 • committed by Ingo Molnar

parent 1d74f2a0f6

commit eb9a7bf091

1 changed files with 39 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

40

kernel/trace/ftrace.c

View file