kernel_optimize_test/tools/perf/arch
He Kuang 1b29dfbba1 perf probe: Fix wrong register name for arm64
The register name of arm64 architecture is x0-x31 not r0-r31, this patch
changes this typo.

Before this patch:

  # perf probe --definition 'sys_write count'
  p:probe/sys_write _text+1502872 count=%r2:s64

  # echo 'p:probe/sys_write _text+1502872 count=%r2:s64' > \
    /sys/kernel/debug/tracing/kprobe_events
  Parse error at argument[0]. (-22)

After this patch:

  # perf probe --definition 'sys_write count'
  p:probe/sys_write _text+1502872 count=%x2:s64

  # echo 'p:probe/sys_write _text+1502872 count=%x2:s64' > \
    /sys/kernel/debug/tracing/kprobe_events
  # echo 1 >/sys/kernel/debug/tracing/events/probe/enable
  # cat /sys/kernel/debug/tracing/trace
  ...
  sh-422   [000] d... 650.495930: sys_write: (SyS_write+0x0/0xc8) count=22
  sh-422   [000] d... 651.102389: sys_write: (SyS_write+0x0/0xc8) count=26
  sh-422   [000] d... 651.358653: sys_write: (SyS_write+0x0/0xc8) count=86

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bintian Wang <bintian.wang@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170124103015.1936-2-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-01-26 11:42:43 -03:00
..
alpha perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
arm perf annotate: Improve support for ARM 2016-11-25 10:38:56 -03:00
arm64 perf probe: Fix wrong register name for arm64 2017-01-26 11:42:43 -03:00
mips perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
parisc perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
powerpc perf annotate: Initial PowerPC support 2016-11-25 10:38:56 -03:00
s390 perf probe: Support probing on offline cross-arch binary 2016-09-01 12:41:09 -03:00
sh perf probe: Support probing on offline cross-arch binary 2016-09-01 12:41:09 -03:00
sparc perf probe: Support probing on offline cross-arch binary 2016-09-01 12:41:09 -03:00
x86 perf test: Remove "test" and similar strings from test descriptions 2016-11-29 12:46:11 -03:00
xtensa perf probe: Support probing on offline cross-arch binary 2016-09-01 12:41:09 -03:00
Build perf build: Add arch x86 objects building 2015-02-12 13:12:01 -03:00
common.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
common.h perf tools: Export normalize_arch() function 2016-06-07 12:08:53 -03:00