linux-toradex.git/tools, branch v2.6.33.4

perf probe: Fix probe_point buffer overrun

2010-04-01T23:01:30+00:00

commit 594087a04eea544356f9c52e83c1a9bc380ce80f upstream.

Fix probe_point array-size overrun problem. In some cases (e.g.
inline function), one user-specified probe-point can be
translated to many probe address, and it overruns pre-defined
array-size. This also removes redundant MAX_PROBES macro
definition.

Signed-off-by: Masami Hiramatsu 
Cc: systemtap 
Cc: DLE 
LKML-Reference: <20100312232217.2017.45017.stgit@localhost6.localdomain6>
[ Note that only root can create new probes. Eventually we should remove
  the MAX_PROBES limit, but that is a larger patch not eligible to
  perf/urgent treatment. ]
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

perf: Make the install relative to DESTDIR if specified

2010-04-01T23:01:29+00:00

commit 7ae5f21361fea11f58c398701da635f778635d13 upstream.

Without this change, the install path is relative to
prefix/DESTDIR where prefix is automatically set to $HOME.

This can produce unexpected results. For example:

  make -C tools/perf DESTDIR=/home/jkacur/tmp install-man

creates the directory:		/home/jkacur/home/jkacur/tmp/share/...
instead of the expected:	/home/jkacur/tmp/share/...

Signed-off-by: John Kacur 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
Cc: Tom Zanussi 
Cc: Kyle McMartin 
LKML-Reference: <1268312220-12880-1-git-send-email-jkacur@redhat.com>
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

perf annotate: Defer allocating sym_priv->hist array

2010-04-01T23:01:23+00:00

commit 628ada0cb03666dd463f7c25947eaccdf440c309 upstream

Because symbol->end is not fixed up at symbol_filter time, only
after all symbols for a DSO are loaded, and that, for asm
symbols, may be bogus, causing segfaults when hits happen in
these symbols.

Backported-from: 628ada0
Reported-by: David Miller 
Reported-by: Anton Blanchard 
Acked-by: David Miller 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <20100225155740.GB8553@ghostprotocols.net>
Signed-off-by: Ingo Molnar 
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Greg Kroah-Hartman

perf symbols: Check the right return variable

2010-03-15T16:06:12+00:00

commit 37fe5fcb7a5b5235c8b71bf5469ce4c7246e3fab upstream.

In function dso__split_kallsyms(), curr_map saves the return value
of map__new2. So check it instead of var map after the call returns.

Signed-off-by: Zhang Yanmin 
Acked-by: David S. Miller 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
LKML-Reference: <1267066851.1726.9.camel@localhost>
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

perf probe: Init struct probe_point and set counter correctly

2010-02-22T10:42:27+00:00

Clear struct probe_point before using it in
show_perf_probe_events(), and set pp->found counter correctly in
synthesize_perf_probe_point(). Without this initialization,
clear_probe_point() will free random addresses.

Signed-off-by: Masami Hiramatsu 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
Cc: systemtap 
Cc: DLE 
LKML-Reference: <20100218181652.26547.57790.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar

perf top: Fix help text alignment

2010-02-14T08:46:02+00:00

Print this:

Mapped keys:
        [d]     display refresh delay.                  (2)
        [e]     display entries (lines).                (46)
        [f]     profile display filter (count).         (5)
        [F]     annotate display filter (percent).      (5%)
        [s]     annotate symbol.                        (NULL)
        [S]     stop annotation.
        [K]     hide kernel_symbols symbols.            (no)
        [U]     hide user symbols.                      (no)
        [z]     toggle sample zeroing.                  (0)
        [qQ]    quit.

instead of:

Mapped keys:
        [d]     display refresh delay.                  (2)
        [e]     display entries (lines).                (46)
        [f]     profile display filter (count).         (5)
        [F]     annotate display filter (percent).      (5%)
        [s]     annotate symbol.                        (NULL)
        [S]     stop annotation.
        [K]     hide kernel_symbols symbols.                    (no)
        [U]     hide user symbols.                      (no)
        [z]     toggle sample zeroing.                  (0)
        [qQ]    quit.

Signed-off-by: Kirill Smelkov 
Acked-by: Arnaldo Carvalho de Melo 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Frederic Weisbecker 
LKML-Reference: <20100212162059.GA30041@landau.phys.spbu.ru>
Signed-off-by: Ingo Molnar

perf: Fix hypervisor sample reporting

2010-02-09T09:52:40+00:00

cpumode bits are defined as such:

 #define PERF_RECORD_MISC_KERNEL                 (1 << 0)
 #define PERF_RECORD_MISC_USER                   (2 << 0)
 #define PERF_RECORD_MISC_HYPERVISOR             (3 << 0)

We need to compare against the complete value of cpumode,
otherwise hypervisor samples get incorrectly attributed as
userspace.

Signed-off-by: Anton Blanchard 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: fweisbec@gmail.com
LKML-Reference: <20100209034304.GA3702@kryten>
Signed-off-by: Ingo Molnar

perf: Ignore perf.data.old

2010-01-27T10:31:26+00:00

Tell git to ignore this file.

Signed-off-by: WANG Cong 
LKML-Reference: <20100125051052.3999.28082.sendpatchset@localhost.localdomain>
Signed-off-by: Ingo Molnar

perf report: Fix segmentation fault when running with '-g none'

2010-01-27T10:01:43+00:00

Segmentation fault occurs when running perf report with '-g
none'.

Reported-by: Austin Zhang 
Signed-off-by: Yong Wang 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
LKML-Reference: <20100122014750.GA4111@ywang-moblin2.bj.intel.com>
Signed-off-by: Ingo Molnar

perf kmem: Print usage help for unknown commands

2010-01-20T06:20:08+00:00

This patch fixes "perf kmem" to print usage help instead of
doing nothing.

Signed-off-by: Pekka Enberg 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Li Zefan 
Cc: Xiao Guangrong 
LKML-Reference: <1263921971-10782-1-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar