From: Namhyung Kim <[email protected]> Current _sort__sym_cmp() function is used for comparing symbols between two hist entries on symbol, symbol_from and symbol_to sort keys. Those functions pass addresses of symbols but it's meaningless since it gets over-written inside of the _sort__sym_cmp function to a start address of the symbol. So just get rid of them.
This might cause a difference than prior output for branch stacks since it seems not using start address of the symbol but branch address. However AFAICS it'd be same as it gets overwritten anyway. Also remove redundant part of code in sort__sym_cmp(). Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/sort.c | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 8333661..03cabe5 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -160,9 +160,10 @@ struct sort_entry sort_dso = { /* --sort symbol */ -static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r, - u64 ip_l, u64 ip_r) +static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r) { + u64 ip_l, ip_r; + if (!sym_l || !sym_r) return cmp_null(sym_l, sym_r); @@ -178,21 +179,10 @@ static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r, static int64_t sort__sym_cmp(struct hist_entry *left, struct hist_entry *right) { - u64 ip_l, ip_r; - if (!left->ms.sym && !right->ms.sym) return right->level - left->level; - if (!left->ms.sym || !right->ms.sym) - return cmp_null(left->ms.sym, right->ms.sym); - - if (left->ms.sym == right->ms.sym) - return 0; - - ip_l = left->ms.sym->start; - ip_r = right->ms.sym->start; - - return _sort__sym_cmp(left->ms.sym, right->ms.sym, ip_l, ip_r); + return _sort__sym_cmp(left->ms.sym, right->ms.sym); } static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym, @@ -383,8 +373,7 @@ sort__sym_from_cmp(struct hist_entry *left, struct hist_entry *right) if (!from_l->sym && !from_r->sym) return right->level - left->level; - return _sort__sym_cmp(from_l->sym, from_r->sym, from_l->addr, - from_r->addr); + return _sort__sym_cmp(from_l->sym, from_r->sym); } static int64_t @@ -396,7 +385,7 @@ sort__sym_to_cmp(struct hist_entry *left, struct hist_entry *right) if (!to_l->sym && !to_r->sym) return right->level - left->level; - return _sort__sym_cmp(to_l->sym, to_r->sym, to_l->addr, to_r->addr); + return _sort__sym_cmp(to_l->sym, to_r->sym); } static int hist_entry__sym_from_snprintf(struct hist_entry *self, char *bf, -- 1.8.1.1.361.gec3ae6e -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
