He Kuang 7c31bb8c95 perf probe: Fix failure to probe events on arm ... Fix failure to probe events on arm, the problem was introduced by commit 5a51fcd1f3 ("perf probe: Skip kernel symbols which is out of .text"). For some architectures, the '_etext' label is not in the .text section (in the .notes section for arm/arm64). Labels out of the .text section are not loaded as symbols and we get a zero value when looking up its addresses, which causes all events to be wrongly skipped. This patch skips checking the text address range when failing to get the address of '_etext' and thus fixes the problem. The problem can be reproduced on arm as follows: # perf probe --add='generic_perform_write' generic_perform_write+0 is out of .text, skip it. Probe point 'generic_perform_write' not found. Error: Failed to add events. After this patch: # perf probe --add='generic_perform_write' Added new event: probe:generic_perform_write (on generic_perform_write) You can now use it in all perf tools, such as: perf record -e probe:generic_perform_write -aR sleep 1 Signed-off-by: He Kuang <hekuang@huawei.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1434595750-129791-1-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2015-06-23 18:21:44 -03:00
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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: Fix failure to probe events on arm	2015-06-23 18:21:44 -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
usb	tools: ffs-aio-example: use endpoint addresses from descriptors	2015-01-15 09:41:49 -06:00
virtio
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