tracing/events: Add 'signed' field to format files
The sign info used for filters in the kernel is also useful to
applications that process the trace stream. Add it to the format
files and make it available to userspace.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: rostedt@goodmis.org
Cc: lizf@cn.fujitsu.com
Cc: hch@infradead.org
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1254809398-8078-2-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 55b41b9..be8412d 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -897,6 +897,21 @@
if (read_expected(EVENT_OP, (char *)";") < 0)
goto fail_expect;
+ if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
+ goto fail_expect;
+
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ goto fail_expect;
+
+ if (read_expect_type(EVENT_ITEM, &token))
+ goto fail;
+ if (strtoul(token, NULL, 0))
+ field->flags |= FIELD_IS_SIGNED;
+ free_token(token);
+
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ goto fail_expect;
+
if (read_expect_type(EVENT_NEWLINE, &token) < 0)
goto fail;
free_token(token);
@@ -2845,6 +2860,15 @@
free_token(token);
if (read_expected(EVENT_OP, (char *)";") < 0)
return;
+ if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
+ return;
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ return;
+ if (read_expect_type(EVENT_ITEM, &token) < 0)
+ return;
+ free_token(token);
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ return;
if (read_expect_type(EVENT_NEWLINE, &token) < 0)
return;
free_token(token);