Commit-ID: c1ac094d5061e757624a47217d2195ba24a75450 Gitweb: http://git.kernel.org/tip/c1ac094d5061e757624a47217d2195ba24a75450 Author: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com> AuthorDate: Wed, 8 Mar 2017 22:34:14 +0530 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Tue, 14 Mar 2017 15:17:40 -0300
doc: trace/kprobes: add information about NOKPROBE_SYMBOL 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....@linux.vnet.ibm.com> Acked-by: Masami Hiramatsu <mhira...@kernel.org> Cc: Ananth N Mavinakayanahalli <ana...@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/d924e20de099579ace4286e610304f054cd798db.1488991670.git.naveen.n....@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.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 41ef9d8..5ea8505 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.
