Add a few of group-related field in struct perf_{evlist,evsel} so that
the group information in a evlist can be known easily.  It only counts
groups which have more than 1 members since leader-only groups are
treated as non-group events.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cppcheck reported:
[util/header.c:983]: (error) Used file that is not opened.

Thanks to Arnaldo Carvalho de Melo for pointing out that
fclose(NULL) is undefined behavior -> protect against it.
Signed-off-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/1751778.SZQB4fNdIh@stormSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cppcheck reported:
[util/header.c:316]: (error) Memory leak: filename
[util/header.c:316]: (error) Memory leak: linkname
Signed-off-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/9377388.0eFDp53iW6@stormSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cppcheck reported:
[util/event.c:480]: (error) Memory leak: event
Signed-off-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/2717013.8dV0naNhAV@stormSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cppcheck message:
[tools/perf/util/sort.c:277]: (error) Mismatching allocation and deallocation: fp

Also fix descriptor leak on error and always initialize the "fp" variable.
Signed-off-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/1359112354.yZcisNZ4k0@storm
Link: http://lkml.kernel.org/r/2266358.qvDXKLvJ67@stormSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The ->counts field was never freed in the current code.  Add
perf_evsel__free_counts() function to free it properly.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1359078284-32080-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

This field will be used by commands which print counter deltas on
regular timer intervals, such as perf stat -I.
Signed-off-by: NStephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1359460064-3060-2-git-send-email-eranian@google.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The callers of this function (perf_event__process_tracing_data) already
handles a negative value return as error, so just use pr_err() to log
the problem and return -1 instead of panic'ing.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-eeeljnecpi0zi5s7ux1mzdv9@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

We have memdup() exactly for that, remove open coded dup.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-tnsoexrgv6u9l125srq2c7su@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As suggested by tglx, 'self' should be replaced by something that is
more useful.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vse2c54m0yahx6p79tmoel03@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As suggested by tglx, 'self' should be replaced by something that is
more useful.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-933537sxtcz47qs0e0ledmrp@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Just like strlist allows passing a list of entries to parse.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-em50vqvvmlnc6k9tw4xtixus@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

So that we can work with optional parameters that may not set up an
intlist.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-e9tmvgdzehqrza11zs0nbg7g@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Running the check-perf-trace scripts causes segfaults in both the Perl
and Python cases:

  # perf script record check-perf-trace
  # perf script -s libexec/perf-core/scripts/python/check-perf-trace.py
  trace_begin
  Segmentation fault (core dumped)

The reason is that the 'pevent' field was added to
perf_scripting_context but it wasn't hooked up with an actual pevent in
either case, so when one of the 'common' fields is accessed (in
util/trace-event-parse.c:get_common_fields()), pevent->events tries to
dereference a NULL pointer.

This sets the pevent field when the scripting context is set up.
Signed-off-by: NTom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lkml.kernel.org/r/d2b1b8166a6ca0a36e1f5255b88a8289058ba236.1358527965.git.tom.zanussi@linux.intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

They are only used in pmu.c, so no need to make them public in pmu.h.
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3gu6vhyro22ywqcldy0gtegv@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

In tools/perf we use a convention where __ separates the struct name
from the function name for functions that operate on a struct instance.

Fix this usage by removing it from the struct names and fix also the
associated functions.
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-kdcoh7uitivx68otqcz12aaz@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

In tools/perf we use a convention where __ separates the struct name
from the function name for functions that operate on a struct instance.

Fix this usage by removing it from the struct names and fix also the
associated functions.
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1tepcpohpvfg589pizx7tlkq@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

In tools/perf we use a convention where __ separates the struct name
from the function name for functions that operate on a struct instance.

Fix this usage by removing it from the struct parse_events_term and fix
also its associated functions.
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-h6vkql4jr7dv0096f1s6hldm@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As we have ltrim() implementation in builtin-script.c move it to the
more generic location of util/string.c so that it can be used from other
places.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1358845787-1350-14-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

On POWER, the 'perf format parsing' test always fails.

Looks like it is because memset() is being passed number of longs rather
than number of bytes. It is interesting that the test always passes on
my x86 box.

With this patch, the test passes on POWER and continues to pass on x86.
Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130117172814.GA18882@us.ibm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

When make runs it tries to update the Makefile rules by reading all of
included Makefiles.  During the perf build it checks PERF-VERSION-FILE
to get the current version number.  But it triggers Makefile update so
that make runs again with the update Makefile and, in turn, users will
see duplicate CHK message on the second path.

Running make with -d option for debugging tells me this:

GNU Make 3.82
Built for x86_64-redhat-linux-gnu
Copyright (C) 2010  Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Reading makefiles...
Reading makefile `Makefile'...
Reading makefile `../scripts/Makefile.include' (search path) (no ~ expansion)...
Reading makefile `config/utilities.mak' (search path) (no ~ expansion)...
Reading makefile `PERF-VERSION-FILE' (search path) (don't care) (no ~ expansion)...
Reading makefile `config/feature-tests.mak' (search path) (don't care) (no ~ expansion)...
    CHK -fstack-protector-all
    CHK -Wstack-protector
    CHK -Wvolatile-register-var
...
Updating makefiles....
 Considering target file `PERF-VERSION-FILE'.
 Must remake target `PERF-VERSION-FILE'.
Invoking recipe from Makefile:52 to update target `PERF-VERSION-FILE'.
Putting child 0x14037a0 (PERF-VERSION-FILE) PID 31925 on the chain.
Live child 0x14037a0 (PERF-VERSION-FILE) PID 31925
PERF_VERSION = 3.8.rc3.gf751db6
Reaping winning child 0x14037a0 PID 31925
Removing child 0x14037a0 PID 31925 from chain.
 Successfully remade target file `PERF-VERSION-FILE'.
...
Re-executing[1]: make -d                       <------------ here
GNU Make 3.82
Built for x86_64-redhat-linux-gnu
Copyright (C) 2010  Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Reading makefiles...
Reading makefile `Makefile'...
Reading makefile `../scripts/Makefile.include' (search path) (no ~ expansion)...
Reading makefile `config/utilities.mak' (search path) (no ~ expansion)...
Reading makefile `PERF-VERSION-FILE' (search path) (don't care) (no ~ expansion)...
Reading makefile `config/feature-tests.mak' (search path) (don't care) (no ~ expansion)...
    CHK -fstack-protector-all
    CHK -Wstack-protector
    CHK -Wvolatile-register-var
...

Actually PERF-VERSION-FILE is used only for perf.c to #define
PERF_VERSION macro.  So make it like a C header file and include it
during compiling the perf.c file will remove the need of being
included into Makefile.  Hench no need to update the Makefile and no
CHK lines anymore.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1358337594-10916-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The 'unset' parameter is option callback leftover with no use, removing.
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/1358257194-8204-2-git-send-email-jolsa@redhat.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

As noticed by Jiri, the hist_entry->branch_info.to/from maps need to be
marked as referenced to avoid problems later on.  So we do this when the
hist_entry is allocated.
Signed-off-by: NStephane Eranian <eranian@google.com>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130114140245.GA4692@quadSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It is used by util/help.c so it should be a lib function and included in
libperf.a. Code move only.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1358185681-90926-1-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Needs to be marked allocated so memory can be freed when dso is deleted.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1358185650-90848-1-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Memory is currently leaked on some paths.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1358185607-90799-1-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Current perf report gets segmentation fault when a branch stack specific
sort key is provided by --sort option to a perf.data file which contains
no branch infomation.  It's because those sort keys reference branch
info of a hist entry unconditionally.  Maybe we can change it checks
whether such branch info is valid or not.  But if the branch stacks are
not recorded, it'd be nop.  Thus it'd be better to make those keys are
unselectable.

This patch separates those keys to a different dimension array, so that
if user passes such a key to a file which has no branch stack will get
following message rather than a segfault.

  Error: Invalid --sort key: `symbol_from'
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Reported-by: NStefan Beller <stefanbeller@googlemail.com>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-10-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It doesn't need to compare to every sort key names since the index
already has the required information.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-9-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

When hists__calc_col_len() called, most of column length are refreshed
but it missed parent column.  So if the parent sort key was used along
with other keys rests will be misalinged since parent has no proper
column width.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-6-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Since cpu number is a natural number, it'd be more appropriate
aligning it to right.

Before:

  # Overhead  CPU      Command:  Pid          Shared Object
  # ........  ...  .................  .....................
  #
       8.91%  8    gnome-shell: 1497  perf-1497.map
       8.90%  7    gnome-shell: 1497  perf-1497.map
       8.86%  9    gnome-shell: 1497  perf-1497.map
       8.83%  6    gnome-shell: 1497  perf-1497.map
       8.81%  10   gnome-shell: 1497  perf-1497.map
       7.44%  5    gnome-shell: 1497  perf-1497.map
       6.20%  3    gnome-shell: 1497  perf-1497.map
       5.10%  0    gnome-shell: 1497  perf-1497.map

After:

  # Overhead  CPU      Command:  Pid          Shared Object
  # ........  ...  .................  .....................
  #
       8.91%    8  gnome-shell: 1497  perf-1497.map
       8.90%    7  gnome-shell: 1497  perf-1497.map
       8.86%    9  gnome-shell: 1497  perf-1497.map
       8.83%    6  gnome-shell: 1497  perf-1497.map
       8.81%   10  gnome-shell: 1497  perf-1497.map
       7.44%    5  gnome-shell: 1497  perf-1497.map
       6.20%    3  gnome-shell: 1497  perf-1497.map
       5.10%    0  gnome-shell: 1497  perf-1497.map
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-5-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The "pid" sort key prints "Command: Pid" output but it's misaligned.
It's because of the offset of 6 was added to the column length during
the calculation in order to reserve an space for Pid part but it isn't
honored when printed.  The output before this patch was like this:

  # Overhead  Command:  Pid      Shared Object
  # ........  .............  .................
  #
      99.70%        noploop:17814  noploop
       0.29%        noploop:17814  [kernel.kallsyms]
       0.01%        noploop:17814  ld-2.15.so

Fix it by subtracting 6 for printing comm part.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-4-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Some functions have set __maybe_unused on its arguments that are used
actually.  Remove them.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-3-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Some functions are misplaced along with other entries.  Move them to a
right place so that it can be found together with related functions.

No functional change intended.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356599507-14226-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Before casting a type of a variable to string, convert_variable_type()
confirms that the type is a pointer or an array. then if it is a pointer
to char, it is casted to string.  but in case of an array of char, it
isn't
Signed-off-by: NH.C. Lee <hyc.lee@gmail.com>
Acked-by: NMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/CANFS6bb75e8a_UtyAD9yF73hfXDy0N8tSjDz=a+Vna=Y8ORMHg@mail.gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Judging anonymous memory's vm_area_struct, perf_mmap_event's filename
will be set to "//anon" indicating this vma belongs to anonymous
memory.

Once hugepage is used, vma's vm_file points to hugetlbfs. In this way,
this vma will not be regarded as anonymous memory by is_anon_memory() in
perf user space utility.
Signed-off-by: NJoshua Zhu <zhu.wen-jie@hp.com>
Cc: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joshua Zhu <zhu.wen-jie@hp.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1357363797-3550-1-git-send-email-zhu.wen-jie@hp.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The elf.h header file is used for NO_LIBELF build too so it should be
included anyway.  Also remove duplicated include of the header file in
symbol-*.c.  This patch fixes following build error on NO_LIBELF build:

    CC tests/hists_link.o
tests/hists_link.c: In function ‘setup_fake_machine’:
tests/hists_link.c:132:8: error: ‘STB_GLOBAL’ undeclared (first use in this function)
tests/hists_link.c:132:8: note: each undeclared identifier is reported only once for each function it appears in
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1356679009-32122-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cppcheck reported:
[tools/perf/util/sysfs.c:50]: (error) Width 4096 given in format string
(no. 1) is larger than destination buffer 'sysfs_mountpoint[4096]',
use %4095s to prevent overflowing it

-> All other places in the kernel that use STR(PATH_MAX)
   have a buffer size of PATH_MAX + 1.
Signed-off-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/50D9D30B.8090002@intra2net.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

We already check that sym_l and sum_r are non-NULLs, no need to do it
twice.
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1356030701-16284-12-git-send-email-sasha.levin@oracle.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It is always there, no sense in calling a function named
"perf_session__find_host_machine".

Also no sense in checking if that function return is NULL, so ditch
needless error handling.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a6a3zx3afbrxo8p2zqm5mxo8@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

That consolidates the grouping of host + guests, isolating a bit more of
functionality now centered on 'perf_session' that can be used
independently in tools that don't need a 'perf_session' instance, but
needs to have all the thread/map/symbol machinery.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-c700rsiphpmzv8klogojpfut@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>