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perf_counter tools: Initialize a stack variable before use

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the "perf report" utility crashed in some circumstances
because the "sym" stack variable was not initialized before used
(as also proven by valgrind).

With this fix both the crash goes away and valgrind no longer complains.

Signed-off-by: Arjan van de Ven <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Arjan van de Ven 2009-06-06 21:22:33 +02:00 • committed by Ingo Molnar
commit e9fbc9dc92
1 changed files with 2 additions and 0 deletions
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2
tools/perf/util/symbol.c
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@ -457,6 +457,8 @@ static int dso__load_sym(struct dso *self, int fd, const char *name,
nr_syms = shdr.sh_size / shdr.sh_entsize;
memset(&sym, 0, sizeof(sym));
elf_symtab__for_each_symbol(syms, nr_syms, index, sym) {
struct symbol *f;
uint64_t obj_start;