perf hists browser: Support folded callchains

The folded callchain mode prints all chains in a single line.

Currently perf report --tui doesn't support folded callchains.  Like
flat callchains, only leaf nodes are added to the final rbtree so it
should show entries in parent nodes.  To do that, add flat_val list to
struct callchain_node and show them along with the (normal) val list.

For example, folded callchain looks like below:

  $ perf report -g folded --tui
  Samples: 234  of event 'cycles:pp', Event count (approx.): 32605268
    Overhead  Command  Shared Object     Symbol
  -   39.93%  swapper  [kernel.vmlinux]  [k] intel_idle
     + 28.63% intel_idle; cpuidle_enter_state; cpuidle_enter; ...
     + 11.30% intel_idle; cpuidle_enter_state; cpuidle_enter; ...

Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Tested-by: Brendan Gregg <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions