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authorNamhyung Kim <namhyung.kim@lge.com>2013-02-06 14:57:15 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-02-06 18:09:25 -0300
commit51f27d1440cede5a413d279a20b38767b6f85097 (patch)
treeb51d9ee1ee674c3d13bc8d8dd34670c3c46cad57
parent2209001fd895e8932ae2c85bfca233758234499a (diff)
downloadvexpress-lsk-51f27d1440cede5a413d279a20b38767b6f85097.tar.gz
perf sort: Drop ip_[lr] arguments from _sort__sym_cmp()
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 <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1360130237-9963-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/sort.c23
1 files changed, 6 insertions, 17 deletions
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 83336610faa..03cabe5678d 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,