* [PATCH v5 2/2] selftests/ftrace: Add new test case which checks non unique symbol [not found] <20231018144030.86885-1-flaniel@linux.microsoft.com> @ 2023-10-18 14:40 ` Francis Laniel 2023-10-18 16:55 ` Greg KH 0 siblings, 1 reply; 2+ messages in thread From: Francis Laniel @ 2023-10-18 14:40 UTC (permalink / raw) To: linux-trace-kernel Cc: Masami Hiramatsu, stable, Francis Laniel, Steven Rostedt, Shuah Khan, linux-kernel, linux-kselftest If name_show() is non unique, this test will try to install a kprobe on this function which should fail returning EADDRNOTAVAIL. On kernel where name_show() is not unique, this test is skipped. Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> --- .../ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc new file mode 100644 index 000000000000..bc9514428dba --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc @@ -0,0 +1,13 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Test failure of registering kprobe on non unique symbol +# requires: kprobe_events + +SYMBOL='name_show' + +# We skip this test on kernel where SYMBOL is unique or does not exist. +if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}" /proc/kallsyms)" -le '1' ]; then + exit_unsupported +fi + +! echo "p:test_non_unique ${SYMBOL}" > kprobe_events -- 2.34.1 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v5 2/2] selftests/ftrace: Add new test case which checks non unique symbol 2023-10-18 14:40 ` [PATCH v5 2/2] selftests/ftrace: Add new test case which checks non unique symbol Francis Laniel @ 2023-10-18 16:55 ` Greg KH 0 siblings, 0 replies; 2+ messages in thread From: Greg KH @ 2023-10-18 16:55 UTC (permalink / raw) To: Francis Laniel Cc: linux-trace-kernel, Masami Hiramatsu, stable, Steven Rostedt, Shuah Khan, linux-kernel, linux-kselftest On Wed, Oct 18, 2023 at 05:40:30PM +0300, Francis Laniel wrote: > If name_show() is non unique, this test will try to install a kprobe on this > function which should fail returning EADDRNOTAVAIL. > On kernel where name_show() is not unique, this test is skipped. > > Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> > --- > .../ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc <formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter> ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <20231018144030.86885-1-flaniel@linux.microsoft.com>
2023-10-18 14:40 ` [PATCH v5 2/2] selftests/ftrace: Add new test case which checks non unique symbol Francis Laniel
2023-10-18 16:55 ` Greg KH
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