linux/tools
Masami Hiramatsu d350bd571f perf probe: Show usage even if the last event is skipped
When the last part of converted events are blacklisted or out-of-text,
those are skipped and perf probe doesn't show usage examples.  This
fixes it to show the example even if the last part of event list is
skipped.

E.g. without this patch, events are added, but suddenly end:

  # perf probe vfs_*
  vfs_caches_init_early is out of .text, skip it.
  vfs_caches_init is out of .text, skip it.
  Added new events:
    probe:vfs_fallocate  (on vfs_*)
    probe:vfs_open       (on vfs_*)
  ...
    probe:vfs_dentry_acceptable (on vfs_*)
    probe:vfs_load_quota_inode (on vfs_*)
  #

With this fix:

  # perf probe vfs_*
  vfs_caches_init_early is out of .text, skip it.
  vfs_caches_init is out of .text, skip it.
  Added new events:
    probe:vfs_fallocate  (on vfs_*)
  ...
    probe:vfs_load_quota_inode (on vfs_*)

  You can now use it in all perf tools, such as:

	perf record -e probe:vfs_load_quota_inode -aR sleep 1

Note that this can be reproduced ONLY IF the vfs_caches_init* is the
last part of matched symbol list. I've checked this happens on
"3.19.0-generic #18-Ubuntu" kernel binary.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150616115057.19906.5502.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-17 16:31:42 -03:00
..
arch tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
build perf build: Do not fail on missing Build file 2015-05-29 12:44:25 -03:00
cgroup
firewire
hv hv: hypervvssd: call endmntent before call setmntent again 2015-03-25 11:53:54 +01:00
iio tools: iio: generic_buffer: Fix generic scale extraction 2015-03-28 11:01:49 +00:00
include tools: Move tools/perf/util/include/linux/{list.h,poison.h} to tools/include 2015-06-02 19:07:29 -03:00
lguest tools/lguest: don't use legacy definitions for net device in example launcher. 2015-02-13 17:15:55 +10:30
lib tools lib traceevent: Ignore libtrace-dynamic-list file 2015-06-08 10:30:32 -03:00
net tools: bpf_asm: cleanup vlan extension related token 2015-03-24 21:21:41 -04:00
nfsd
perf perf probe: Show usage even if the last event is skipped 2015-06-17 16:31:42 -03:00
power More power management and ACPI updates for v4.1-rc1 2015-04-26 13:56:35 -07:00
scripts
testing linux-kselftest-4.1-rc4 2015-05-16 15:03:52 -07:00
thermal/tmon tools/thermal: tmon: fixed the 'make install' command 2015-05-09 13:36:58 +08:00
time tools: add script to test udelay 2014-07-23 10:16:38 -07:00
usb tools: ffs-aio-example: use endpoint addresses from descriptors 2015-01-15 09:41:49 -06:00
virtio tools/virtio: add virtio 1.0 in vringh_test 2014-12-15 23:49:22 +02:00
vm tools: Fix tools/vm build 2015-05-12 18:11:06 -03:00
Makefile tools build: Fix Makefile(s) to properly invoke tools build 2015-04-29 10:37:46 -03:00