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Subject[tip:perf/core] kprobes: Add mcount to the kprobes blacklist
Commit-ID:  5ecaafdbf44b1ba400b746c60c401d54c7ee0863
Gitweb: http://git.kernel.org/tip/5ecaafdbf44b1ba400b746c60c401d54c7ee0863
Author: Masami Hiramatsu <mhiramat@redhat.com>
AuthorDate: Fri, 5 Feb 2010 01:24:34 -0500
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Fri, 5 Feb 2010 08:13:57 +0100

kprobes: Add mcount to the kprobes blacklist

Since mcount function can be called from everywhere,
it should be blacklisted. Moreover, the "mcount" symbol
is a special symbol name. So, it is better to put it in
the generic blacklist.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20100205062433.3745.36726.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/kprobes.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index c3340e8..ccec774 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -94,6 +94,7 @@ static struct kprobe_blackpoint kprobe_blacklist[] = {
{"native_get_debugreg",},
{"irq_entries_start",},
{"common_interrupt",},
+ {"mcount",}, /* mcount can be called from everywhere */
{NULL} /* Terminator */
};


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