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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-01-05 11:54:45 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-01-13 10:09:10 +0100 |
| commit | b9a63b9b56d6910a25e3d4905525aef150420a9b (patch) | |
| tree | fb31094583f801d9ceae0bfea465244c07686b90 /tools/perf | |
| parent | de1764892a61a3ed212973cc028c80dd083179dd (diff) | |
| download | blackbird-op-linux-b9a63b9b56d6910a25e3d4905525aef150420a9b.tar.gz blackbird-op-linux-b9a63b9b56d6910a25e3d4905525aef150420a9b.zip | |
perf report: Fix --no-call-chain option handling
To avoid the funny:
[root@doppio ~]# perf record -a -f sleep 2s
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.334 MB perf.data (~14572 samples) ]
[root@doppio ~]# perf report --no-call-graph
selected -g but no callchain data. Did you call perf record without -g?
And fix the bug reported by peterz when we do indeed record with
callchains and then ask for a report without:
[root@doppio ~]# perf record -a -g -f sleep 2s
[root@doppio ~]# perf report --no-call-graph
Segmentation fault
[root@doppio ~]#
Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1262699685-27820-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-report.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 4292d7afcd60..80d691a4191f 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -35,6 +35,7 @@ static char const *input_name = "perf.data"; static int force; static bool hide_unresolved; +static bool dont_use_callchains; static int show_threads; static struct perf_read_values show_threads_values; @@ -172,7 +173,8 @@ static int perf_session__setup_sample_type(struct perf_session *self) " -g?\n"); return -1; } - } else if (callchain_param.mode != CHAIN_NONE && !symbol_conf.use_callchain) { + } else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE && + !symbol_conf.use_callchain) { symbol_conf.use_callchain = true; if (register_callchain_param(&callchain_param) < 0) { fprintf(stderr, "Can't register callchain" @@ -246,11 +248,19 @@ out_delete: static int parse_callchain_opt(const struct option *opt __used, const char *arg, - int unset __used) + int unset) { char *tok; char *endptr; + /* + * --no-call-graph + */ + if (unset) { + dont_use_callchains = true; + return 0; + } + symbol_conf.use_callchain = true; if (!arg) |
