perf tools: Fix old GCC build error in 'get_srcline'
trace-event-parse.c:parse_proc_kallsyms() Old GCC (4.4.2) does not see through the code flow of get_srcline() and gets confused about the status of 'file' and 'line': CC /tmp/build/perf/util/srcline.o cc1: warnings being treated as errors util/srcline.c: In function ¿get_srcline¿: util/srcline.c:226: error: ¿file¿ may be used uninitialized in this function util/srcline.c:227: error: ¿line¿ may be used uninitialized in this function make[1]: *** [/tmp/build/perf/util/srcline.o] Error 1 make: *** [install] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' [acme@fedora12 linux]$ Help out GCC by initializing 'file' and 'line'. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Link: http://lkml.kernel.org/n/tip-h8k7h49z3cndqgjdftkmm9f8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -223,8 +223,8 @@ out:
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char *get_srcline(struct dso *dso, unsigned long addr)
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{
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char *file;
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unsigned line;
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char *file = NULL;
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unsigned line = 0;
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char *srcline;
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char *dso_name = dso->long_name;
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size_t size;
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