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perf tools: Fix old GCC build error in trace-event-parse.c:parse_proc_kallsyms()

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Old GCC (4.1) does not see through the code flow of parse_proc_kallsyms()
and gets confused about the status of 'fmt':

 util/trace-event-parse.c: In function ‘parse_proc_kallsyms’:
 util/trace-event-parse.c:189: warning: ‘fmt’ may be used uninitialized in this function
 make: *** [util/trace-event-parse.o] Error 1

Help out GCC by initializing 'fmt' to NULL.

Signed-off-by: Ingo Molnar <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Ingo Molnar 2013-09-12 15:16:49 +02:00 • committed by Arnaldo Carvalho de Melo
commit 0f9654296e
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/trace-event-parse.c
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@ -186,7 +186,7 @@ void parse_proc_kallsyms(struct pevent *pevent,
char *next = NULL;
char *addr_str;
char *mod;
char *fmt;
char *fmt = NULL;
line = strtok_r(file, "\n", &next);
while (line) {