When NDEBUG is defined, the assert macro will be expanded to nothing.
Some assert calls used in perf are also including some functionality
(e.g. system calls), not only validity checks. Therefore, if NDEBUG is
defined, this functionality will be removed along with the assert.  Perf
also defines BUG_ON based on assert, so it has the same problem.

Define BUG_ON so that the condition will be executed when NDEBUG is
defined.  Replace the assert statements that have these side effects
with BUG_ON.

For defining BUG_ON, use "if (cond) {}" insted of "if (cond) ;" because
in the latter case build fails with "error: suggest braces around empty
body in an ‘if’ statement [-Werror=empty-body]"
Suggested-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Reviewed-by: NNamhyung Kim <namhyung@kernel.org>
Reviewed-by: NPekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347082551-2394-1-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Fixes:

../../lib/rbtree.c: In function 'rb_insert_color':
../../lib/rbtree.c:95:9: error: 'true' undeclared (first use in this function)
../../lib/rbtree.c:95:9: note: each undeclared identifier is reported only once for each function it appears in
../../lib/rbtree.c: In function '__rb_erase_color':
../../lib/rbtree.c:216:9: error: 'true' undeclared (first use in this function)
../../lib/rbtree.c: In function 'rb_erase':
../../lib/rbtree.c:368:2: error: unknown type name 'bool'
make: *** [util/rbtree.o] Error 1
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/50406F60.5040707@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

perf has support for self-debugging by defining dump_stack function.
This function uses backtrace and backtrace_symbols functions defined as
GNU extensions.

In Android, bionic does not offer support for these functions and
compilation will fail with the following error:

target  C: libperf <= tools/perf/util/util.c
tools/perf/util/util.c:4:22: fatal error: execinfo.h: No such file or directory
compilation terminated.

Add a compile-time option (NO_BACKTRACE) to enable or disable
self-debugging functionality in perf. This can also help in debugging
since it offers the possibility to turn on/off printing the backtrace.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-12-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The mkostemp function is only available in glibc. This leads to compile
error in Android, since bionic is derived from BSD.

Replacing mkostemp with mkstemp. mkstemp is available on both glibc and
bionic.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-10-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

pthread variables are used in some files without explicitely including
pthread.h. This leads to compile errors on Android. e.g.: in annotate.h,
error: unknown type name 'pthread_mutex_t'

Including pthread.h explicitely in files that use it to have all definitions
included.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-8-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

In Android, struct winsize is not defined in the headers already
included in help.c. This leads to a compile error.

Including termios.h fixes the compilation error since it defines struct winsize.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-7-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

perf uses the glibc version of basename(), by defining _GNU_SOURCE,
including string.h and not including libgen.h. The glibc version of
basename is better than the POSIX version since it does not modify its
argument.

Android has only one version of basename which is defined in libgen.h.
This version is the same as the glibc version.

Error on Android:
util/annotate.c: In function 'symbol__annotate_printf':
util/annotate.c:503:3: error: implicit declaration of function 'basename'
[-Werror=implicit-function-declaration]
util/annotate.c:503:3: error: nested extern declaration of 'basename'
[-Werror=nested-externs]
util/annotate.c:503:14: error: assignment makes pointer from integer without
a cast [-Werror]

On Android libgen.h should be included to define basename.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-6-git-send-email-irina.tirdea@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The repsep_snprintf function was still using standalone field_sep, which
not even set anymore.

Replacing it with 'symbol_conf.field_sep'.
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 E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346946426-13496-3-git-send-email-jolsa@redhat.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Putting 'perf diff' command back on track with the 'latest'
evsel hists changes. Each evsel has its own 'hists' object
gathering stats for the particular event.

While currently counts are accumulated for the whole session
regardless of the events diversification within compared
sessions.

The 'perf diff' command now outputs all matching events within
compared sessions (with event name specified). The per event
diff output stays the same.

  $ ./perf diff
  # Event 'cycles'
  #
  # Baseline  Delta          Shared Object                          Symbol
  # ........ ..........  .................  ..............................
  #
       0.00%    +15.14%  [kernel.kallsyms]  [k] __wake_up
       0.00%    +13.38%  [kernel.kallsyms]  [k] ext4fs_dirhash

... SNIP

       0.00%     +0.42%  [kernel.kallsyms]  [k] local_clock
       0.17%     -0.05%  [kernel.kallsyms]  [k] native_write_msr_safe

  # Event 'faults'
  #
  # Baseline  Delta          Shared Object                          Symbol
  # ........ ..........  .................  ..............................
  #
       0.00%    +79.12%  ld-2.15.so         [.] _dl_relocate_object
       0.00%    +11.62%  ld-2.15.so         [.] openaux
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 E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346946426-13496-2-git-send-email-jolsa@redhat.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It prevents mindless git add from adding those files.
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/1346982953-30824-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

If the event name is specified with all 3 components, the last one
overwrites the previous one during the name composing within the
parse_events_add_cache function.

Fixing this by properly adjusting the string index.
Reported-by: NJoel Uckelman <joel@lightboxtechnologies.com>
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Joel Uckelman <joel@lightboxtechnologies.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LPU-Reference: 20120905175133.GA18352@krava.brq.redhat.com
[ committer note: Remove the newline fix, done already in 42e1fb77 ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

That nicely catches the problem reported by Joel Uckelman in
http://permalink.gmane.org/gmane.linux.kernel.perf.user/1016 :

  [root@sandy ~]# perf test
   1: vmlinux symtab matches kallsyms: Ok
   2: detect open syscall event: Ok
   3: detect open syscall event on all cpus: Ok
   4: read samples using the mmap interface: Ok
   5: parse events tests: Ok
   6: x86 rdpmc test: Ok
   7: Validate PERF_RECORD_* events & perf_sample fields: Ok
   8: Test perf pmu format parsing: Ok
   9: Test dso data interface: Ok
  10: roundtrip evsel->name check: FAILED!

  [root@sandy ~]# perf test -v 10
  10: roundtrip evsel->name check:
  --- start ---
  L1-dcache-misses != L1-dcache-load-misses
  L1-dcache-misses != L1-dcache-store-misses
  L1-dcache-misses != L1-dcache-prefetch-misses
  L1-icache-misses != L1-icache-load-misses
  L1-icache-misses != L1-icache-prefetch-misses
  LLC-misses != LLC-load-misses
  LLC-misses != LLC-store-misses
  LLC-misses != LLC-prefetch-misses
  dTLB-misses != dTLB-load-misses
  dTLB-misses != dTLB-store-misses
  dTLB-misses != dTLB-prefetch-misses
  iTLB-misses != iTLB-load-misses
  branch-misses != branch-load-misses
  node-misses != node-load-misses
  node-misses != node-store-misses
  node-misses != node-prefetch-misses
  ---- end ----
  roundtrip evsel->name check: FAILED!

  [root@sandy ~]#

Now lemme apply Jiri's fix and try it again...

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Joel Uckelman <joel@lightboxtechnologies.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-bbewtxw0rfipp5qy1j3jtg5d@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

For debugging, etc.

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-fjimge1ovgh976qlt8dtmlp0@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Noticed while developing a 'perf test' entry to verify that
perf_evsel__name works.

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-xz6zgh38mp3cjnd2udh38z8f@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It basically traverses the hardware and software event name arrays
creating an evlist with all events, then it uses perf_evsel__name to
check that the name is the expected one.

With it I noticed this problem:

[root@sandy ~]# perf test 10
10: roundtrip evsel->name check:invalid or unsupported event: 'CPU-migrations'
Run 'perf list' for a list of valid events
 FAILED!

Changed it to "cpu-migrations" in the software event arrays and it
worked.

This is to catch problems like the one reported by Joel Uckelman in
http://permalink.gmane.org/gmane.linux.kernel.perf.user/1016

Hardware cache events will be checked in the following patch.

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-5jskfkuqvf2fi257zmni0ftz@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Current perf_evlist__set_tracepoint_names is a misnomer because it finds
and sets correspoding event_format in addition to the name.  So skipping
it when a event has set name already caused a trouble.

Rename it and set name only a event doesn't have one.
Reported-by: NDavid Ahern <dsahern@gmail.com>
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.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/1346897446-16569-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

For checking return value of the strdup, 'event' should be 'evsel'.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.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/1346897446-16569-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

It's built as part of perf, so it should be cleaned too.
Tested-by: NNamhyung Kim <namhyung@kernel.org>
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1346892816-61779-1-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

When analyzing perf data from hosts of other architecture than one of
the local host it's useful to call objdump that is part of a toolchain
for that architecture. Instead of calling regular objdump, call one that
user specified in command line.
Signed-off-by: NMaciek Borzecki <maciek.borzecki@gmail.com>
Acked-by: NDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1346754750.16299.3.camel@localhost.localdomainSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

mempcpy is not supported by bionic in Android and will lead to
compilation errors.

Replacing mempcpy with memcpy so it will work in Android.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/CANg8OW+Y3ZMG-GdhYu2_yKOYH_XEMgw73PdCX_23UTnfYhmttA@mail.gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Like others, the numbers can be saved in a different endian format than
a host machine.  Swap them if needed.
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: Robert Richter <robert.richter@amd.com>
Link: http://lkml.kernel.org/r/1346821373-31621-4-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The event name can be set already by processing a event_desc data.

So check it before setting to prevent possible leak.
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/1346821373-31621-3-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Number of events (evsels) in a evlist is kept on nr_entries field
so that we don't need to recalculate it.
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/1346821373-31621-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

perf does not have networking related functionality, and the inclusion
of these headers is one of the causes of compile failures for Android:

  https://lkml.org/lkml/2012/8/23/316
  https://lkml.org/lkml/2012/8/28/293

So, remove them.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346255732-93246-1-git-send-email-dsahern@gmail.com
[ committer note: fix trace-event-perl.c compile failure by reordering includes ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

The following commit:

author	David Ahern <dsahern@gmail.com>
	Tue, 31 Jul 2012 04:31:33 +0000 (22:31 -0600)
committer	Arnaldo Carvalho de Melo <acme@redhat.com>
	Fri, 3 Aug 2012 13:39:51 +0000 (10:39 -0300)
commit	ee8dd3ca

causes a double free during a probe deletion as the node is never
removed from the list via strlist__remove(), even though it gets
'deleted' (read free()'d). This causes a double free when we do
strlist__delete() as the node is already deleted but present in the
rblist.

[suzukikp@suzukikp perf]$ sudo ./perf probe -a do_fork
Added new event:
  probe:do_fork        (on do_fork)

You can now use it in all perf tools, such as:

	perf record -e probe:do_fork -aR sleep 1

[suzukikp@suzukikp perf]$ sudo ./perf probe -d do_fork
Removed event: probe:do_fork
*** glibc detected *** ./perf: double free or corruption (fasttop): 0x000000000133d600 ***
======= Backtrace: =========
/lib64/libc.so.6[0x38eec7dda6]
./perf(rblist__delete+0x5c)[0x47d3dc]
./perf(del_perf_probe_events+0xb6)[0x47b826]
./perf(cmd_probe+0x471)[0x42c8d1]
./perf[0x4150b3]
./perf(main+0x501)[0x4148e1]
/lib64/libc.so.6(__libc_start_main+0xed)[0x38eec2169d]
./perf[0x414a61]

Make sure we remove the node from the rblist before we delete the node.
The rblist__remove_node() will invoke rblist->node_delete, which  will
take care of deleting the node with the suitable function provided by
the user.
Reported-by: NAnanth N. Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: NSuzuki K. Poulose <suzuki@in.ibm.com>
Acked-by: NDavid Ahern <dsahern@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120829055840.7802.1459.stgit@suzukikp.in.ibm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Similar to the one in :
	https://lkml.org/lkml/2012/8/29/27

Make sure we remove the node from the rblist before we delete the node.
The rblist__remove_node() will invoke rblist->node_delete, which  will
take care of deleting the node with the suitable function provided by
the user.
Signed-off-by: NSuzuki K Poulose <suzuki@in.ibm.com>
Acked-by: NDavid Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Suzuki K Poulose <suzuki@in.ibm.com>
Link: http://lkml.kernel.org/r/20120831065840.5167.90318.stgit@suzukikp.in.ibm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

e.g., compiling i386 on x86_64 using:
$ make -C tools/perf ARCH=i386

fails with:

    CC /tmp/pbuild/util/evsel.o
In file included from util/evsel.c:21:0:
util/perf_regs.h:5:23: fatal error: perf_regs.h: No such file or directory
compilation terminated.

Adding V=1 you see that the include argument for the arch is
'-Iarch/i386/include' is wrong. It is supposed to be -Iarch/x86/include
per the redefinition of ARCH in the Makefile.

According to the make manual,
http://www.gnu.org/software/make/manual/make.html#Override-Directive:
  "If a variable has been set with a command argument (see Overriding
   Variables), then ordinary assignments in the makefile are ignored. If
   you want to set the variable in the makefile even though it was set
   with a command argument, you can use an override directive ..."

Make it so.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346094354-74356-1-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows perf to clean up properly on exit. If perf-record is exiting due
to failure, the on_exit should not run as the session has been deleted.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-8-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows perf to clean up properly on exit. Only exits left are exec
failures which are appropriate and usage callbacks that list available
options.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-7-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows perf to clean up properly on exit.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-6-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows perf to clean up properly on program termination.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-5-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows perf to clean up properly on exit.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-4-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Handle error from process callback and propagate back to caller.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-3-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Allows errors to propogate through event processing code and back to
commands.
Signed-off-by: NDavid Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-2-git-send-email-dsahern@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Stashing version 4 under version 3 and removing version 4, because both
version changes were within single patchset.
Reported-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arun Sharma <asharma@fb.com>
Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/20120822083540.GB1003@krava.brq.redhat.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

With dynamic pmu allocation there are also dynamically assigned pmu ids.
These ids are used in event->attr.type to describe the pmu to be used
for that event. The information is available in sysfs, e.g:

 /sys/bus/event_source/devices/breakpoint/type: 5
 /sys/bus/event_source/devices/cpu/type: 4
 /sys/bus/event_source/devices/ibs_fetch/type: 6
 /sys/bus/event_source/devices/ibs_op/type: 7
 /sys/bus/event_source/devices/software/type: 1
 /sys/bus/event_source/devices/tracepoint/type: 2

These mappings are needed to know which samples belong to which pmu.  If
a pmu is added dynamically like for ibs_fetch or ibs_op the type value
may vary.

Now, when decoding samples from perf.data this information in sysfs
might be no longer available or may have changed. We need to store it in
perf.data. Using the header for this. Now the header information created
with perf report contains an additional section looking like this:

 # pmu mappings: ibs_op = 7, ibs_fetch = 6, cpu = 4, breakpoint = 5, tracepoint = 2, software = 1
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Acked-by: NPeter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345144224-27280-9-git-send-email-robert.richter@amd.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Name events based on the event description in the perf.data header.

Example output:

 $ perf report | grep '^#.*event'
 # event : name = ibs_op/cnt_ctl=1/GH, type = 7, config = 0x80000, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 0, precise_ip = 0, id = { 49, 50, 51, 52, 53, 54, 55, 56 }
 # event : name = ibs_fetch/config=0/, type = 6, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 57, 58, 59, 60, 61, 62, 63, 64 }
 # Samples: 20K of event 'ibs_op/cnt_ctl=1/GH'
 # Samples: 4K of event 'ibs_fetch/config=0/'

Note the new pmu event syntax of the names.
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345144224-27280-8-git-send-email-robert.richter@amd.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

For later use we need a function read_event_desc() for processing the
event_desc feature. Split it from print_event_desc().
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345144224-27280-7-git-send-email-robert.richter@amd.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Use command line string provided by the -e option to name events. This
way we get unique events names that also support pmu event syntax
(<pmu_name>/<config>/<modifier>). No need to reconstruct the name
anymore from its attributes. We use the event_desc of the header to
store the name in the perf.data header. Thus it is also available for
perf report.

Implemented by putting the parser in different states to parse events or
configs.

And since event names are now generated from the command line
specification.  Update event names in test cases accordingly.
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345144224-27280-6-git-send-email-robert.richter@amd.com
[ committer note: Folded patch fixing 'perf test' failure reported by Jiri Olsa ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

Run through all tests regardless of failures. On errors, return the
first error code detected.
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345572195-23857-2-git-send-email-robert.richter@amd.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>