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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-21 21:00:36 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-21 21:00:36 +0300 |
commit | 023cc836053539148ffd015d3938887ef19af1cd (patch) | |
tree | 4f8c355de1185d4c4579d10d504937a0cf4ccbc0 /tools/testing | |
parent | 4d7b04c0cda365f190c4a8f7fddc535b93aae9f9 (diff) | |
parent | 03b80ff8023adae6780e491f66e932df8165e3a0 (diff) | |
download | linux-023cc836053539148ffd015d3938887ef19af1cd.tar.xz |
Merge tag 'probes-fixes-v6.6-rc6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- kprobe-events: Fix kprobe events to reject if the attached symbol is
not unique name because it may not the function which the user want
to attach to. (User can attach a probe to such symbol using the
nearest unique symbol + offset.)
- selftest: Add a testcase to ensure the kprobe event rejects non
unique symbol correctly.
* tag 'probes-fixes-v6.6-rc6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
selftests/ftrace: Add new test case which checks non unique symbol
tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
Diffstat (limited to 'tools/testing')
-rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 13 |
1 files changed, 13 insertions, 0 deletions
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 |