Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1647659
| From | Masami Hiramatsu <mhiramat@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/7] ftrace/kprobes: selftests: Check kretprobe maxactive is supported |
| Date | 2017-05-23 08:10 +0200 |
| Message-ID | <tKbb4-7G0-7@gated-at.bofh.it> (permalink) |
| References | <tKbb3-7G0-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Check the kretprobe maxactive is supported by kprobe_events interface. To ensure the kernel feature, this changes ftrace README to describe it. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- kernel/trace/trace.c | 3 ++- .../ftrace/test.d/kprobe/kretprobe_maxactive.tc | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 1122f15..dc3f91e 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4473,7 +4473,8 @@ static const char readme_msg[] = #endif #if defined(CONFIG_KPROBE_EVENTS) || defined(CONFIG_UPROBE_EVENTS) "\t accepts: event-definitions (one definition per line)\n" - "\t Format: p|r[:[<group>/]<event>] <place> [<args>]\n" + "\t Format: p[:[<group>/]<event>] <place> [<args>]\n" + "\t r[maxactive][:[<group>/]<event>] <place> [<args>]\n" "\t -:[<group>/]<event>\n" #ifdef CONFIG_KPROBE_EVENTS "\t place: [<module>:]<symbol>[+<offset>]|<memaddr>\n" diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc index 57abdf1..7ec6f26 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc @@ -2,6 +2,7 @@ # description: Kretprobe dynamic event with maxactive [ -f kprobe_events ] || exit_unsupported # this is configurable +grep -q 'r\[maxactive\]' README || exit_unsupported # this is older version echo > kprobe_events
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 5/7] selftests/ftrace: Add instance indication in test log Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 3/7] ftrace/kprobes: selftests: Check kretprobe maxactive is supported Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 4/7] selftests/ftrace: Reset ftrace filter on older kernel Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 2/7] selftests/ftrace: Reduce trace buffer checking overhead Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 1/7] selftests/ftrace: Skip full-glob-matching filter test on older kernel Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:10 +0200 [PATCH 7/7] selftests/ftrace: Return unsupported if it detects older kernel Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:20 +0200 [PATCH 6/7] selftests/ftrace: Use top-level available_filter_function Masami Hiramatsu <mhiramat@kernel.org> - 2017-05-23 08:20 +0200
csiph-web