[PATCH 3/3] perf report: Fix alignment of symbol column when -v is given

From: Namhyung Kim
Date: Tue Mar 26 2013 - 08:12:17 EST


From: Namhyung Kim <namhyung.kim@xxxxxxx>

When -v option is given, the symbol sort key prints its address also
but it wasn't properly aligned since hists__calc_col_len() misses the
additional part. Also it missed 2 spaces for 0x prefix when printing.

$ perf report --stdio -v -s sym
# Samples: 133 of event 'cycles'
# Event count (approx.): 50536717
#
# Overhead Symbol
# ........ ..............................
#
12.20% 0xffffffff81384c50 v [k] intel_idle
7.62% 0xffffffff8170976a v [k] ftrace_caller
7.02% 0x2d986d B [.] 0x00000000002d986d

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/util/hist.c | 20 +++++++++++++++++---
tools/perf/util/sort.c | 2 +-
2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index b951f4101d7e..7d4bb1f515d1 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -73,8 +73,17 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
u16 len;

- if (h->ms.sym)
- hists__new_col_len(hists, HISTC_SYMBOL, h->ms.sym->namelen + 4);
+ if (h->ms.sym) {
+ /*
+ * +4 accounts for '[x] ' priv level info
+ * +2 accounts for 0x prefix on raw addresses
+ * +3 accounts for ' y ' symtab origin info
+ */
+ len = h->ms.sym->namelen + 4;
+ if (verbose)
+ len += BITS_PER_LONG / 4 + 2 + 3;
+ hists__new_col_len(hists, HISTC_SYMBOL, len);
+ }
else
hists__set_unres_dso_col_len(hists, HISTC_DSO);

@@ -94,10 +103,13 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
int symlen;
/*
* +4 accounts for '[x] ' priv level info
- * +2 account of 0x prefix on raw addresses
+ * +2 accounts for 0x prefix on raw addresses
+ * +3 accounts for ' y ' symtab origin info
*/
if (h->branch_info->from.sym) {
symlen = (int)h->branch_info->from.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);

symlen = dso__name_len(h->branch_info->from.map->dso);
@@ -110,6 +122,8 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)

if (h->branch_info->to.sym) {
symlen = (int)h->branch_info->to.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);

symlen = dso__name_len(h->branch_info->to.map->dso);
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 988d7ea3ecc2..5df020f3f59b 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -194,7 +194,7 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
if (verbose) {
char o = map ? dso__symtab_origin(map->dso) : '!';
ret += repsep_snprintf(bf, size, "%-#*llx %c ",
- BITS_PER_LONG / 4, ip, o);
+ BITS_PER_LONG / 4 + 2, ip, o);
}

ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", level);
--
1.7.11.7

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