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perf tools: Handle print concatenations in event format file

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kmem_alloc ftrace event format had a string that was broken up
by two tokens. "string 1" "string 2". This patch lets the parser
be able to handle the concatenation.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194357.253818714@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2009-10-14 15:43:32 -04:00 committed by Ingo Molnar
parent b226f744d4
commit 924a79af2c
1 changed files with 16 additions and 0 deletions
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16
tools/perf/util/trace-event-parse.c
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@ -1734,6 +1734,7 @@ static int event_read_print(struct event *event)
if (read_expect_type(EVENT_DQUOTE, &token) < 0)
goto fail;
concat:
event->print_fmt.format = token;
event->print_fmt.args = NULL;
@ -1743,6 +1744,21 @@ static int event_read_print(struct event *event)
if (type == EVENT_NONE)
return 0;
/* Handle concatination of print lines */
if (type == EVENT_DQUOTE) {
char *cat;
cat = malloc_or_die(strlen(event->print_fmt.format) +
strlen(token) + 1);
strcpy(cat, event->print_fmt.format);
strcat(cat, token);
free_token(token);
free_token(event->print_fmt.format);
event->print_fmt.format = NULL;
token = cat;
goto concat;
}
if (test_type_token(type, token, EVENT_DELIM, (char *)","))
goto fail;