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Probes fixes for v7.2-rc6:

Browse Source 
- selftests/ftrace: Refactor eprobes test to fix argument checks
   Refactor the eprobes selftest to get more stable test result by using
   `sys_enter_chdir` instead of `openat` and filter for exact directory
   names. This resolves test instability after string pointer handling fix.
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Merge tag 'probes-fixes-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes selftest fix from Masami Hiramatsu:

 - selftests/ftrace: Refactor eprobes test to fix argument checks

   Refactor the eprobes selftest to get more stable test result by using
   `sys_enter_chdir` instead of `openat` and filter for exact directory
   names

   This resolves test instability after the string pointer handling fix

* tag 'probes-fixes-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  selftests/ftrace: refactor eprobes test to fix argument checks
This commit is contained in:
Linus Torvalds 2026-08-06 08:29:59 -07:00
commit fcaeecb8b0
1 changed files with 5 additions and 11 deletions
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16
tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
View File

@ -1,16 +1,16 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Generic dynamic event - add/remove eprobe events
# requires: dynamic_events events/syscalls/sys_enter_openat "<attached-group>.<attached-event> [<args>]":README
# requires: dynamic_events events/syscalls/sys_enter_chdir "<attached-group>.<attached-event> [<args>]":README
echo 0 > events/enable
clear_dynamic_events
SYSTEM="syscalls"
EVENT="sys_enter_openat"
EVENT="sys_enter_chdir"
FIELD="filename"
EPROBE="eprobe_open"
EPROBE="eprobe_chdir"
OPTIONS="file=+0(\$filename):ustring"
echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
@ -18,20 +18,14 @@ grep -q "$EPROBE" dynamic_events
test -d events/eprobes/$EPROBE
echo 1 > events/eprobes/$EPROBE/enable
ls
cd /sys/kernel/tracing
echo 0 > events/eprobes/$EPROBE/enable
content=`grep '^ *ls-' trace | grep 'file='`
nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."' -e '(fault)' ` || true
content=`grep -e 'file="/sys/kernel/tracing"\|(fault)' trace`
if [ -z "$content" ]; then
exit_fail
fi
if [ ! -z "$nocontent" ]; then
exit_fail
fi
echo "-:$EPROBE" >> dynamic_events
! grep -q "$EPROBE" dynamic_events