Messages in this thread Patch in this message | | | From | "Naveen N. Rao" <> | Subject | [TRIVIAL PATCH 1/2] doc: trace/kprobes: add information about NOKPROBE_SYMBOL | Date | Wed, 8 Mar 2017 22:34:14 +0530 |
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Update kprobe tracer documentation to also mention that NOKPROBE_SYMBOL() and nokprobe_inline add symbols to the kprobes blacklist.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> --- Documentation/trace/kprobetrace.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index 41ef9d8efe95..5ea85059db3b 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -8,8 +8,9 @@ Overview -------- These events are similar to tracepoint based events. Instead of Tracepoint, this is based on kprobes (kprobe and kretprobe). So it can probe wherever -kprobes can probe (this means, all functions body except for __kprobes -functions). Unlike the Tracepoint based event, this can be added and removed +kprobes can probe (this means, all functions except those with +__kprobes/nokprobe_inline annotation and those marked NOKPROBE_SYMBOL). +Unlike the Tracepoint based event, this can be added and removed dynamically, on the fly. To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y. -- 2.11.1
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