linux-kernel - [tip:perf/core] tools lib traceevent: Handle trace

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Date:   Fri, 5 Apr 2019 04:41:18 -0700
From:   "tip-bot for Steven Rostedt (VMware)" <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, mingo@...nel.org, jolsa@...hat.com,
        tglx@...utronix.de, rostedt@...dmis.org, akpm@...ux-foundation.org,
        tstoyanov@...are.com, namhyung@...nel.org, acme@...hat.com,
        linux-kernel@...r.kernel.org
Subject: [tip:perf/core] tools lib traceevent: Handle trace_printk() "%px"

Commit-ID:  328b82b7497787cf4e4856a216dbf4e8a54c06a6
Gitweb:     https://git.kernel.org/tip/328b82b7497787cf4e4856a216dbf4e8a54c06a6
Author:     Steven Rostedt (VMware) <rostedt@...dmis.org>
AuthorDate: Mon, 1 Apr 2019 12:43:06 -0400
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
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) <rostedt@...dmis.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@...are.com>
Link: http://lkml.kernel.org/r/20190401164342.837312153@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 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':
 						break;
 					default:
 						/*