linux-toradex.git/tools, branch v2.6.36.4

perf, MIPS: Support cross compiling of tools/perf for MIPS

2010-10-12T11:34:37+00:00

Changes:
 v4: Fix the cosmetic issue of redundant dot-ops
 v3: Change rmb() to use SYNC
 v2: Include mips unistd.h and define rmb()/cpu_relax() in tools/perf/perf.h

Signed-off-by: Deng-Cheng Zhu 
Acked-by: Ralf Baechle 
Cc: David Daney 
Cc: Peter Zijlstra 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
Cc: Paul Mackerras 
Signed-off-by: Ingo Molnar

perf trace scripting: Fix extern struct definitions

2010-10-04T15:24:51+00:00

Both python_scripting_ops and perl_scripting_ops have two global definitions.
One in trace-event-scripting.c and one in their respective scripting-engine
modules.

The issue is that depending on the linker order one definition or the other
is chosen. One is uninitialized (bss), while the other is initialized. If
the uninitialized version is chosen, then perf does not function properly.

This patch fixes this by adding the extern prefix to the definitions in
trace-event-scripting.c.

Cc: David S. Miller 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Robert Richter 
LKML-Reference: <4c97e41a.078fd80a.7a8b.3cc9@mx.google.com>
Signed-off-by: Stephane Eranian 
Signed-off-by: Arnaldo Carvalho de Melo

perf ui hist browser: Fix segfault on 'a' for annotate

2010-10-04T15:08:37+00:00

There a typo in util/ui/browsers/hists.c that leads to a segfault when you
press the 'a' key on a non-resolved symbol (plain hex address).

LKML-Reference: <20100923201901.GE31726@gambetta>
Signed-off-by: Frederik Deweerdt 
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Fix build breakage

2010-10-04T14:58:25+00:00

The patch ecafda6 introduced a problem where all object files would be
always rebuilt, fix it by using:

http://www.gnu.org/software/make/manual/html_node/Prerequisite-Types.html

Reported-by: Arnaldo Carvalho de Melo 
Cc: Bernd Petrovitsch 
Signed-off-by: Kusanagi Kouichi 
Signed-off-by: Arnaldo Carvalho de Melo

perf symbols: Fix multiple initialization of symbol system

2010-09-09T20:43:35+00:00

By returning immediately if it was already initialized, do it as well at
symbol__exit, refusing multiple deinitializations.

This fixes problems in the kmem, sched and timechart commands.

Reported-by: Davidlohr Bueso 
Cc: Davidlohr Bueso 
Signed-off-by: Jovi Zhang 
LKML-Reference: AANLkTi=9Cn=R8SPMCRp5z+gEjXbaBHeb-AaOtRbuwwcn@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Fix handling of arguments names

2010-09-08T14:47:19+00:00

Don't make argument names from raw parameters (means the parameters are written
in kprobe-tracer syntax), because the argument syntax may include special
characters.  Just leave it, then kprobe-tracer gives a new name.

Reported-by: Srikar Dronamraju 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Ingo Molnar 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
LKML-Reference: <20100827113859.22882.75598.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Fix return probe support

2010-09-08T14:47:18+00:00

Fix a bug to support %return probe syntax again. Previous commit 4235b04 has a
bug which disables the %return syntax on perf probe.

Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Ingo Molnar 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
LKML-Reference: <20100827113852.22882.87447.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Arnaldo Carvalho de Melo

perf: Initialize callchains roots's childen hits

2010-08-26T23:51:36+00:00

Each histogram entry has a callchain root that stores the
callchain samples. However we forgot to initialize the
tracking of children hits of these roots, which then got
random values on their creation.

The root children hits is multiplied by the minimum percentage
of hits provided by the user, and the result becomes the minimum
hits expected from children branches. If the random value due
to the uninitialization is big enough, then this minimum number
of hits can be huge and eventually filter every children branches.

The end result was invisible callchains. All we need to
fix this is to initialize the children hits of the root.

Reported-by: Christoph Hellwig 
Signed-off-by: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Arnaldo Carvalho de Melo 
Cc: Paul Mackerras 
Cc: 2.6.32.x-2.6.35.y

perf tools: Fix build error on read only source.

2010-08-18T16:32:37+00:00

Parts of the build process were generating files outside the specified
O= directory, causing the build to fail on systems where the sources are
in a read only file system.

Fix it by using $(OUTPUT) on these locations.

Also check that $(OUTPUT) actually exists, just like the top level
kernel Makefile does. Otherwise the failure message emitted is
completely misleading.

Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <20100817140841.0859362C03A@msa106.auone-net.jp>
Signed-off-by: Kusanagi Kouichi 
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Fix build on POSIX shells

2010-08-17T15:22:08+00:00

POSIX sh does not specify the brace expansion, so fix it by replacing the
global $(shell ...) lines quite at the top creating the output directories with
real rules.

Cc: Ingo Molnar 
Cc: Kusanagi Kouichi 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <1282046280.5822.4.camel@thorin>
Signed-off-by: Bernd Petrovitsch 
Signed-off-by: Arnaldo Carvalho de Melo