linux/tools
He Kuang 7d5eaba9b3 perf probe: Show better error message when failed to find variable
Indicate to check variable location range in error message when we got
failed to find the variable.

Before this patch:

  $ perf probe --add 'generic_perform_write+118 bytes'
  Failed to find the location of bytes at this address.
   Perhaps, it has been optimized out.
    Error: Failed to add events.

After this patch:

  $ perf probe --add 'generic_perform_write+118 bytes'
  Failed to find the location of the 'bytes' variable at this address.
   Perhaps it has been optimized out.
   Use -V with the --range option to show 'bytes' location range.
    Error: Failed to add events.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1431336304-16863-3-git-send-email-hekuang@huawei.com
[ Improve the error message based on lkml thread ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-12 09:59:50 -03:00
..
arch tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
build tools build: Add feature check for lzma library 2015-03-21 14:53:39 -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 include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -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 Merge branch 'perf/urgent' into perf/core, to resolve conflicts 2015-05-11 11:56:27 +02:00
net tools: bpf_asm: cleanup vlan extension related token 2015-03-24 21:21:41 -04:00
nfsd
perf perf probe: Show better error message when failed to find variable 2015-05-12 09:59:50 -03:00
power More power management and ACPI updates for v4.1-rc1 2015-04-26 13:56:35 -07:00
scripts tools lib traceevent: Add global QUIET_CC_FPIC build output 2013-12-19 16:18:10 -03:00
testing selftests/powerpc: Fix the pmu install rule 2015-05-01 13:00:26 +10:00
thermal/tmon tools/thermal: tmon: silence 'set but not used' warnings 2015-02-28 13:52:48 +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 mm:add KPF_ZERO_PAGE flag for /proc/kpageflags 2015-02-11 17:06:00 -08:00
Makefile tools build: Fix Makefile(s) to properly invoke tools build 2015-04-29 10:37:46 -03:00