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The 'umask' event parameter is unsupported on some architectures like
powerpc64.
This can be observed on a powerpc64le system running Fedora 27 as shown
below.
# perf test "Parse event definition strings" -v
6: Parse event definition strings :
--- start ---
test child forked, pid 45915
...
running test 3 'cpu/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks',period=0x1,event=0x2,umask=0x3/ukp'Invalid event/parameter 'umask'
Invalid event/parameter 'umask'
failed to parse event 'cpu/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks',period=0x1,event=0x2,umask=0x3/ukp', err 1, str 'unknown term'
event syntax error: '..,event=0x2,umask=0x3/ukp'
\___ unknown term
valid terms: event,mark,pmc,cache_sel,pmcxsel,unit,thresh_stop,thresh_start,combine,thresh_sel,thresh_cmp,sample_mode,config,config1,config2,name,period,freq,branch_type,time,call-graph,stack-size,no-inherit,inherit,max-stack,no-overwrite,overwrite,driver-config
mem_access -> cpu/event=0x10401e0/
running test 0 'config=10,config1,config2=3,umask=1'
test child finished with 1
---- end ----
Parse event definition strings: FAILED!
Committer testing:
After applying the patch these test passes and in verbose mode we get:
# perf test -v "event definition"
6: Parse event definition strings:
--- start ---
test child forked, pid 11061
running test 0 'syscalls:sys_enter_openat'Using CPUID GenuineIntel-6-9E
<SNIP>
running test 53 'cycles/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks'/Duk'
running test 0 'cpu/config=10,config1,config2=3,period=1000/u'
running test 1 'cpu/config=1,name=krava/u,cpu/config=2/u'
running test 2 'cpu/config=1,call-graph=fp,time,period=100000/,cpu/config=2,call-graph=no,time=0,period=2000/'
running test 3 'cpu/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks',period=0x1,event=0x2/ukp'
<SNIP>
test child finished with 0
---- end ----
Parse event definition strings: Ok
#
Suggested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Fixes: 06dc5bf21f ("perf tests: Check that complex event name is parsed correctly")
Link: http://lkml.kernel.org/r/20180726105502.31670-1-sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
a6f39cecf7