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Subject[tip:perf/core] tools lib traceevent: Handle trace_printk() "%px"
Commit-ID:  328b82b7497787cf4e4856a216dbf4e8a54c06a6
Author: Steven Rostedt (VMware) <>
AuthorDate: Mon, 1 Apr 2019 12:43:06 -0400
Committer: Arnaldo Carvalho de Melo <>
CommitDate: Mon, 1 Apr 2019 15:18:08 -0300

tools lib traceevent: Handle trace_printk() "%px"

With security updates, %p in the kernel is hashed to protect true kernel
locations. But trace_printk() is not allowed in production systems, and
when a pointer is used, there are many times that the actual address is
needed. "%px" produces the real address. But libtraceevent does not know how
to handle that extension. Add it.

Signed-off-by: Steven Rostedt (VMware) <>
Cc: Andrew Morton <>
Cc: Jiri Olsa <>
Cc: Namhyung Kim <>
Cc: Tzvetomir Stoyanov <>
Signed-off-by: Arnaldo Carvalho de Melo <>
tools/lib/traceevent/event-parse.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 87494c7c619d..2ebb257ce7ba 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4338,6 +4338,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
case 'S':
case 'f':
case 'F':
+ case 'x':
 \ /
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