perf report: Add 'symoff' sort key

The symoff sort key is to print symbol and offset of sample.  This is
useful for data type profiling to show exact instruction in the function
which refers the data.

  $ perf report -s type,sym,typeoff,symoff --hierarchy
  ...
  #       Overhead  Data Type / Symbol / Data Type Offset / Symbol Offset
  # ..............  .....................................................
  #
      1.23%         struct cfs_rq
        0.84%         update_blocked_averages
          0.19%         struct cfs_rq +336 (leaf_cfs_rq_list.next)
             0.19%         [k] update_blocked_averages+0x96
          0.19%         struct cfs_rq +0 (load.weight)
             0.14%         [k] update_blocked_averages+0x104
             0.04%         [k] update_blocked_averages+0x31c
          0.17%         struct cfs_rq +404 (throttle_count)
             0.12%         [k] update_blocked_averages+0x9d
             0.05%         [k] update_blocked_averages+0x1f9
          0.08%         struct cfs_rq +272 (propagate)
             0.07%         [k] update_blocked_averages+0x3d3
             0.02%         [k] update_blocked_averages+0x45b
  ...

Committer testing:

  # perf report --stdio -s type,typeoff,symoff
  # To display the perf.data header info, please use --header/--header-only options.
  #
  #
  # Total Lost Samples: 0
  #
  # Samples: 4  of event 'cpu_atom/mem-loads,ldlat=30/P'
  # Event count (approx.): 7
  #
  # Overhead  Data Type  Data Type Offset  Symbol Offset
  # ........  .........  ................  .............
  #
      42.86%  struct list_head  struct list_head +8 (prev)  [k] __list_del_entry_valid_or_report+0x7
      28.57%  (unknown)  (unknown) +0 (no field)  [.] _nl_intern_locale_data+0x25
      14.29%  char       char +0 (no field)  [k] strncpy_from_user+0xa5
      14.29%  (unknown)  (unknown) +0 (no field)  [.] _dl_lookup_symbol_x+0x50

  #
  # (Tip: To change sampling frequency to 100 Hz: perf record -F 100)
  #

Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions