[PATCH 04/66] perf report: Fix alignment of symbol column when -v is given

From: Arnaldo Carvalho de Melo
Date: Thu May 30 2013 - 12:12:45 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>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1364816125-12212-4-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/hist.c | 26 +++++++++++++++-----------
tools/perf/util/sort.c | 2 +-
2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 514fc04..72b4eec 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -70,9 +70,17 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
int symlen;
u16 len;

- if (h->ms.sym)
- hists__new_col_len(hists, HISTC_SYMBOL, h->ms.sym->namelen + 4);
- else {
+ /*
+ * +4 accounts for '[x] ' priv level info
+ * +2 accounts for 0x prefix on raw addresses
+ * +3 accounts for ' y ' symtab origin info
+ */
+ if (h->ms.sym) {
+ symlen = h->ms.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
+ hists__new_col_len(hists, HISTC_SYMBOL, symlen);
+ } else {
symlen = unresolved_col_width + 4 + 2;
hists__new_col_len(hists, HISTC_SYMBOL, symlen);
hists__set_unres_dso_col_len(hists, HISTC_DSO);
@@ -91,12 +99,10 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen);

if (h->branch_info) {
- /*
- * +4 accounts for '[x] ' priv level info
- * +2 account of 0x prefix on raw addresses
- */
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);
@@ -109,6 +115,8 @@ 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);
@@ -121,10 +129,6 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
}

if (h->mem_info) {
- /*
- * +4 accounts for '[x] ' priv level info
- * +2 account of 0x prefix on raw addresses
- */
if (h->mem_info->daddr.sym) {
symlen = (int)h->mem_info->daddr.sym->namelen + 4
+ unresolved_col_width + 2;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 5f52d49..16d5e38 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);
--
1.8.1.4

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