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Subject[tip:perf/core] perf annotate: Print the evsel name in the stdio output
Commit-ID:  9cdbadceca31bf2ccd9e50fecdc5591d3fb8dae3
Gitweb: http://git.kernel.org/tip/9cdbadceca31bf2ccd9e50fecdc5591d3fb8dae3
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Tue, 18 Mar 2014 11:50:21 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 18 Mar 2014 18:17:03 -0300

perf annotate: Print the evsel name in the stdio output

So that when showing multiple events annotations, we can figure out
which is which:

# perf record -a -e instructions,cycles sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.826 MB perf.data (~36078 samples) ]
# perf evlist
instructions
cycles
# perf annotate intel_idle 2> /dev/null | head -1
Percent | Source code & Disassembly of vmlinux for instructions
#

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-n1r51l329434js84qtb2c6l9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/annotate.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 3aa555f..809b4c5 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1236,6 +1236,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
struct dso *dso = map->dso;
char *filename;
const char *d_filename;
+ const char *evsel_name = perf_evsel__name(evsel);
struct annotation *notes = symbol__annotation(sym);
struct disasm_line *pos, *queue = NULL;
u64 start = map__rip_2objdump(map, sym->start);
@@ -1243,7 +1244,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
int more = 0;
u64 len;
int width = 8;
- int namelen;
+ int namelen, evsel_name_len, graph_dotted_len;

filename = strdup(dso->long_name);
if (!filename)
@@ -1256,14 +1257,17 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,

len = symbol__size(sym);
namelen = strlen(d_filename);
+ evsel_name_len = strlen(evsel_name);

if (perf_evsel__is_group_event(evsel))
width *= evsel->nr_members;

- printf(" %-*.*s| Source code & Disassembly of %s\n",
- width, width, "Percent", d_filename);
- printf("-%-*.*s-------------------------------------\n",
- width+namelen, width+namelen, graph_dotted_line);
+ printf(" %-*.*s| Source code & Disassembly of %s for %s\n",
+ width, width, "Percent", d_filename, evsel_name);
+
+ graph_dotted_len = width + namelen + evsel_name_len;
+ printf("-%-*.*s-----------------------------------------\n",
+ graph_dotted_len, graph_dotted_len, graph_dotted_line);

if (verbose)
symbol__annotate_hits(sym, evsel);

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