perf report: Fix sample type validation for synthesized callchains
authorAdrian Hunter <adrian.hunter@intel.com>
Fri, 25 Sep 2015 13:15:33 +0000 (16:15 +0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 28 Sep 2015 19:42:38 +0000 (16:42 -0300)
commitd062ac16f53d1a24047bcc9eded5514a71c363b8
tree19ed51828458a03cc7f22d422e0718dfd15b349f
parente1791347b5d57d13326cf0114df1a3f3b1c4ca24
perf report: Fix sample type validation for synthesized callchains

Processing instruction tracing data (e.g. Intel PT) can synthesize
callchains e.g.

$ perf record -e intel_pt//u uname
$ perf report --stdio --itrace=ige

However perf report's callgraph option gets extra validation, so:

$ perf report --stdio --itrace=ige -gflat
Error:
Selected -g or --branch-history but no callchain data. Did
you call 'perf record' without -g?
# To display the perf.data header info,
# please use --header/--header-only options.
#

Fix the validation to know about instruction tracing options so
above command works.

A side-effect of the change is that the default option to
accumulate the callchain of child functions comes into force.
To get the previous behaviour the --no-children option can be
used e.g.

       $ perf report --stdio --itrace=ige -gflat --no-children

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-report.c