lkml.org 
[lkml]   [2018]   [Apr]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH AUTOSEL for 4.15 020/189] selftest: ftrace: Fix to pick text symbols for kprobes
    Date
    From: Masami Hiramatsu <mhiramat@kernel.org>

    [ Upstream commit 5e46664703b364434a2cbda3e6988fc24ae0ced5 ]

    Fix to pick text symbols for multiple kprobe testcase.
    kallsyms shows text symbols with " t " or " T " but
    current testcase picks all symbols including "t",
    so it picks data symbols if it includes 't' (e.g. "str").

    This fixes it to find symbol lines with " t " or " T "
    (including spaces).

    Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
    Reported-by: Russell King <linux@armlinux.org.uk>
    Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
    Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    ---
    tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
    index bb16cf91f1b5..e297bd7a2e79 100644
    --- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
    +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
    @@ -12,8 +12,8 @@ case `uname -m` in
    *) OFFS=0;;
    esac

    -echo "Setup up to 256 kprobes"
    -grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
    +echo "Setup up kprobes on first 256 text symbols"
    +grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
    head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||:

    echo 1 > events/kprobes/enable
    --
    2.15.1
    \
     
     \ /
      Last update: 2018-04-09 06:08    [W:6.082 / U:0.532 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site