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authorNamhyung Kim <namhyung@kernel.org>2014-01-17 17:08:39 +0900
committerSteven Rostedt <rostedt@goodmis.org>2014-02-20 12:30:10 -0500
commitca3b162021a421b38a9cd7b66555b9b01568dc9d (patch)
tree58c8fa7e2826a75d8c578751b31c4fd08d8e8cd4 /kernel/trace/trace_uprobe.c
parent70ed91c6ec7f8bf20369634017d887d48ac979d2 (diff)
tracing/uprobes: Support event triggering
Add support for event triggering to uprobes. This is same as kprobes support added by Tom (plus cleanup by Steven). Link: http://lkml.kernel.org/r/1389946120-19610-5-git-send-email-namhyung@kernel.org Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_uprobe.c')
-rw-r--r--kernel/trace/trace_uprobe.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 349c6df9e332..01fcb0db75cb 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -776,6 +776,9 @@ static void __uprobe_trace_func(struct trace_uprobe *tu,
if (WARN_ON_ONCE(tu->tp.size + dsize > PAGE_SIZE))
return;
+ if (ftrace_trigger_soft_disabled(ftrace_file))
+ return;
+
esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
size = esize + tu->tp.size + dsize;
event = trace_event_buffer_lock_reserve(&buffer, ftrace_file,
@@ -795,8 +798,7 @@ static void __uprobe_trace_func(struct trace_uprobe *tu,
memcpy(data, ucb->buf, tu->tp.size + dsize);
- if (!call_filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, 0, 0);
+ event_trigger_unlock_commit(ftrace_file, buffer, event, entry, 0, 0);
}
/* uprobe handler */