diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-01-27 21:05:52 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-01-29 09:20:58 +0100 |
| commit | 64abebf731df87e6f4ae7d9ffc340bdf0c033e44 (patch) | |
| tree | 5ccf8953ac39f72875254321dd51e9ec9503aaa0 /tools/perf | |
| parent | fd1d908c543fbdfae82839d24b0872c542fceedc (diff) | |
perf session: Create kernel maps in the constructor
Removing one extra step needed in the tools that need this,
fixing a bug in 'perf probe' where this was not being done.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Masami Hiramatsu <mhiramat@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: <1264633557-17597-4-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-kmem.c | 5 | ||||
| -rw-r--r-- | tools/perf/builtin-record.c | 5 | ||||
| -rw-r--r-- | tools/perf/builtin-top.c | 5 | ||||
| -rw-r--r-- | tools/perf/util/session.c | 13 |
4 files changed, 11 insertions, 17 deletions
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 7323d9dfbce8..38b8ca900eda 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -491,11 +491,6 @@ static int __cmd_kmem(void) if (!perf_session__has_traces(session, "kmem record")) goto out_delete; - if (perf_session__create_kernel_maps(session) < 0) { - pr_err("Problems creating kernel maps\n"); - return -1; - } - setup_pager(); err = perf_session__process_events(session, &event_ops); if (err != 0) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 7bb9ca1b30fa..90345223908c 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -477,11 +477,6 @@ static int __cmd_record(int argc, const char **argv) return -1; } - if (perf_session__create_kernel_maps(session) < 0) { - pr_err("Problems creating kernel maps\n"); - return -1; - } - if (!file_new) { err = perf_header__read(&session->header, output); if (err < 0) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 78f9c4576a0c..1fc018e048e1 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1191,11 +1191,6 @@ static int __cmd_top(void) if (session == NULL) return -ENOMEM; - if (perf_session__create_kernel_maps(session) < 0) { - pr_err("Problems creating kernel maps\n"); - return -1; - } - if (target_pid != -1) event__synthesize_thread(target_pid, event__process, session); else diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 1951e330377c..8e7c1896eaa2 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -70,8 +70,17 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc self->unknown_events = 0; map_groups__init(&self->kmaps); - if (mode == O_RDONLY && perf_session__open(self, force) < 0) - goto out_delete; + if (mode == O_RDONLY) { + if (perf_session__open(self, force) < 0) + goto out_delete; + } else if (mode == O_WRONLY) { + /* + * In O_RDONLY mode this will be performed when reading the + * kernel MMAP event, in event__process_mmap(). + */ + if (perf_session__create_kernel_maps(self) < 0) + goto out_delete; + } self->sample_type = perf_header__sample_type(&self->header); out: |