With support for Python 2 or 3 and PySide 1 or 2 (Qt 4 or 5), it is
useful to see what versions are in use. Add an 'About' dialog box that
displays Python, PySide, Qt and database server (SQLite or PostgreSQL)
version numbers.

Committer testing:

  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py ~/c/adrian.hunter/simple-retpoline.db

  Then go to 'Help', then 'About', select all the lines with the mouse
  press 'Control+C', then, on the same terminal press control+shift+V
  which shows my current environment:

Python version:     2.7.16
PySide version:     1
Qt version:         4.8.7
SQLite version:     3.26.0
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-7-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Add a context menu (right-click) that provides options for copying to
clipboard, including, for trees, the ability to copy only the cell under
the mouse pointer.

Committer testing:

  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py ~/c/adrian.hunter/simple-retpoline.db

  Simply right click and pick "Copy selection", that at this point has
  just the first line, not expanded, then see what was copied by pressing
  shift+control+v on a terminal:

Call Path,Object,Count,Time (ns),Time (%),Branch Count,Branch Count (%)
▶ simple-retpolin,,,,,,

  Ditto after expanding, i.e. the selection continues to be just one
  line:

Call Path           Object   Count   Time (ns)   Time (%)   Branch Count   Branch Count (%)
▼ simple-retpolin

   Now select all the lines with the mouse and control+shift+v again:

Call Path                     Object             Count   Time (ns)   Time (%)   Branch Count   Branch Count (%)
  ▼ 14503:14503
    ▼ _start                  ld-2.28.so             1      156267      100.0          10602              100.0
      ▶ unknown               unknown                1        2276        1.5              1                0.0
      ▶ _dl_start             ld-2.28.so             1      137047       87.7          10088               95.2
      ▶ _dl_init              ld-2.28.so             1        9142        5.9            326                3.1
      ▼ _start                simple-retpoline       1        7457        4.8            182                1.7
        ▶ unknown             unknown                1         805       10.8              1                0.5
        ▶ __libc_start_main   libc-2.28.so           1        6347       85.1            179               98.4
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-6-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Add support for copying to clipboard. Two menu options are added to copy the
selected rows / columns with normal spacing, or as comma-separated-values.
In the case of trees, only entire rows can be copied.

Comitter testing:

  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py ~/c/adrian.hunter/simple-retpoline.db

Select the lines, press control+C and on the same terminal,
press control+shift+V and voilà:

Call Path                           Object           Count  Time (ns)  Time (%)  Branch Count  Branch Count (%)
  ▼ 14503:14503
    ▼ _start                        ld-2.28.so           1     156267     100.0         10602             100.0
        unknown                     unknown              1       2276       1.5             1               0.0
      ▼ _dl_start                   ld-2.28.so           1     137047      87.7         10088              95.2
        ▶ unknown                   unknown              4       4127       3.0             4               0.0
          _dl_setup_hash            ld-2.28.so           1          0       0.0             1               0.0
        ▶ _dl_sysdep_start          ld-2.28.so           1     131342      95.8          9981              98.9
      ▼ _dl_init                    ld-2.28.so           1       9142       5.9           326               3.1
        ▼ call_init.part.0          ld-2.28.so           3       9133      99.9           319              97.9
          ▶ _init                   libc-2.28.so         1       6877      75.3           110              34.5
          ▶ check_stdfiles_vtables  libc-2.28.so         1         76       0.8             2               0.6
          ▶ init_cacheinfo          libc-2.28.so         1       1991      21.8           197              61.8
      ▶ _start                      simple-retpoline     1       7457       4.8           182               1.7
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-5-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As preparation for adding support for copying to clipboard, keep track of
what level each item is in tree items.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-4-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Fix the following error if shrink / enlarge font is used with the help
window.

  Traceback (most recent call last):
    File "tools/perf/scripts/python/exported-sql-viewer.py", line 2791, in ShrinkFont
      ShrinkFont(win.view)
  AttributeError: 'HelpWindow' object has no attribute 'view'

Committer testing:

Before, matches above output:

  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py ~/c/adrian.hunter/simple-retpoline.db
  Traceback (most recent call last):
    File "/home/acme/libexec/perf-core/scripts/python/exported-sql-viewer.py", line 2780, in EnlargeFont
      EnlargeFont(win.view)
  AttributeError: 'HelpWindow' object has no attribute 'view'
  $

After:

No more tracebacks, but the fonts don't get enlarged, which is kinda
frustrating...
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-2-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As preparation for adding support for copying to clipboard, create view
in TreeWindowBase instead of derived classes.

Committer testing:

Tested using an old .db used to test some older patches:

  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py ~/c/adrian.hunter/simple-retpoline.db

Nothing breaks.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190503120828.25326-3-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Fix following error using calls_view:

 Query failed: ambiguous column name: parent_id Unable to execute statement
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: 8ce9a725 ("perf scripts python: export-to-sqlite.py: Export calls parent_id")
Link: http://lkml.kernel.org/r/20190409062557.26138-1-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Unlike python2, python3 strings are not compatible with byte strings.
That results in disassembly not working for the branches reports. Fixup
those places overlooked in the port to python3.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: beda0e72 ("perf script python: Add Python3 support to exported-sql-viewer.py")
Link: http://lkml.kernel.org/r/20190327072826.19168-3-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

pyside version 1 fails to handle python3 large integers in some cases,
resulting in Qt getting into a never-ending loop. This affects:
	samples Table
	samples_view Table
	All branches Report
	Selected branches Report

Add workarounds for those cases.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: beda0e72 ("perf script python: Add Python3 support to exported-sql-viewer.py")
Link: http://lkml.kernel.org/r/20190327072826.19168-2-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Introduce a printdate function to eliminate the repetitive use of
datetime.datetime.today() in the SQL exporting scripts.
Signed-off-by: NTony Jones <tonyj@suse.de>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20190309000518.2438-5-tonyj@suse.deSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the export-to-sqlite.py script

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20190309000518.2438-4-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the export-to-postgresql.py script.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190309000518.2438-3-tonyj@suse.deSigned-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the exported-sql-viewer.py script.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20190309000518.2438-2-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the intel-pt-events.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/fd26acf9-0c0f-717f-9664-a3c33043ce19@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the event_analyzing_sample.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Feng Tang <feng.tang@intel.com>
Link: http://lkml.kernel.org/r/20190302011903.2416-5-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python 2 and Python 3 in the check-perf-trace.py script.

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of from __future__ implies the minimum supported version of
Python2 is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/20190302011903.2416-4-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the futex-contention.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190302011903.2416-3-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Remove mixed indentation in Python scripts.  Revert to either all tabs
(most common form) or all spaces (4 or 8) depending on what was the
intent of the original commit.  This is necessary to complete Python3
support as it will flag an error if it encounters mixed indentation.
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190302011903.2416-2-tonyj@suse.deSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Add a new report to display a call tree. The Call Tree report is very
similar to the Context-Sensitive Call Graph, but the data is not
aggregated. Also the 'Count' column, which would be always 1, is replaced
by the 'Call Time'.

Committer testing:

  $ cat simple-retpoline.c
  /*

    https://lkml.kernel.org/r/20190109091835.5570-6-adrian.hunter@intel.com

  $ gcc -ggdb3 -Wall -Wextra -O2 -o simple-retpoline simple-retpoline.c
  $ objdump -d simple-retpoline
  */

  __attribute__((noinline)) int bar(void)
  {
          return -1;
  }

  int foo(void)
  {
          return bar() + 1;
  }

  __attribute__((indirect_branch("thunk"))) int main()
  {
          int (*volatile fn)(void) = foo;

          fn();
          return fn();
  }
  $
  $ perf record -o simple-retpoline.perf.data -e intel_pt/cyc/u ./simple-retpoline
  $ perf script -i simple-retpoline.perf.data --itrace=be -s ~acme/libexec/perf-core/scripts/python/export-to-sqlite.py simple-retpoline.db branches calls
  $ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py simple-retpoline.db

And in the GUI select:

    "Reports"
      "Call Tree"

    Call Path                 | Object          | Call Time (ns) | Time (ns) | Time (%) | Branch Count | Brach Count (%) |
    > simple-retpolin
      > PID:TID
        > _start                ld-2.28.so       2193855505777      156267      100.0       10602          100.0
            unknown             unknown          2193855506010        2276        1.5           1            0.0
          > _dl_start           ld-2.28.so       2193855508286      137047       87.7       10088           95.2
          > _dl_init            ld-2.28.so       2193855645444        9142        5.9         326            3.1
          > _start              simple-retpoline 2193855654587        7457        4.8         182            1.7
            > __libc_start_main <SNIP>
              <SNIP>
              > main            simple-retpoline 2193855657493          32        0.5          12            6.7
                > foo           simple-retpoline 2193855657493          14       43.8           5           41.7
              <SNIP>
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-enf0w96gqzfpv4fi16pw9ovc@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Factor out a base class CallGraphModelBase from CallGraphModel, so that
CallGraphModelBase can be reused.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-76eybebzjwvgnadkm2oufrqi@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Instead of passing the tree root, get it from a method that can be
implemented in any derived class.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-ovcv28bg4mt9swk36ypdyz14@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Factor out a base class TreeWindowBase from CallGraphWindow, so that
TreeWindowBase can be reused.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-ifirw0c0mhkwxg6l12lk6k4p@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Export to the 'calls' table the newly created 'parent_id' and create an
index for it.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-eybd6fnk6j9r7g643lsideoo@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Fix SQL query error "invalid input syntax for integer":

  Traceback (most recent call last):
    File "tools/perf/scripts/python/export-to-postgresql.py", line 465, in <module>
      do_query(query, 'CREATE VIEW calls_view AS '
    File "tools/perf/scripts/python/export-to-postgresql.py", line 274, in do_query
      raise Exception("Query failed: " + q.lastError().text())
  Exception: Query failed: ERROR:  invalid input syntax for integer: ""
  LINE 1: ...ch_count,call_id,return_id,CASE WHEN flags=0 THEN '' WHEN fl...
                                                               ^
  (22P02) QPSQL: Unable to create query
  Error running python script tools/perf/scripts/python/export-to-postgresql.py
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: f08046cb ("perf thread-stack: Represent jmps to the start of a different symbol")
Link: https://lkml.kernel.org/n/tip-strfpdozrvg7bi1xzrivxzqt@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Export to the 'calls' table the newly created 'parent_id'.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-b09oukl48rsl9azkp2wmh0bl@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the syscall-counts-by-pid.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190222230619.17887-15-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the syscall-counts.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190222230619.17887-14-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the stat-cpi.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20190222230619.17887-13-tonyj@suse.deSigned-off-by: NTony Jones <tonyj@suse.de>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the stackcollapse.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com> <pbonzini@redhat.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-12-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the sctop.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-11-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the powerpc-hcalls.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-10-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the net_dropmonitor.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-9-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the mem-phys-addr.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190222230619.17887-8-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the failed-syscalls-by-pid.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-5-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Support both Python2 and Python3 in the netdev-times.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2
version is now v2.6.
Signed-off-by: NTony Jones <tonyj@suse.de>
Cc: Sanagi Koki <sanagi.koki@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/20190222230619.17887-2-tonyj@suse.deSigned-off-by: NSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Add a new report to display top calls by elapsed time. It displays calls
in descending order of time elapsed between when the function was called
and when it returned.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

If no selection is made on the 'Selected branches' dialog, then the
output is the same as the 'All branches' report. That is not really an
error, and is not desirable for future reports, so remove it.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Remove SQLTableDialogDataItem as it is no longer used.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Create new dialog data item classes to replace SQLTableDialogDataItem.
This separates out different dialog data items and makes it easier to
add new ones. SQLTableDialogDataItem is removed in a separate patch
because it makes the diff more readable.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The report name is a report variable so move it into into ReportVars.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>