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We need to use map->unmap_ip() here too to match section
relative symbol address to the absolute address needed to match
objdump -dS addresses.
Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1256061295-19835-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
If the user doesn't pass a symbol name to annotate, it will
annotate all the symbols that have hits, in order, just like
'perf report -s comm,dso,symbol'.
This is a natural followup patch to the one that uses
output_hists to find the symbols with hits.
The common case is to annotate the first few entries at the top
of a perf report, so lets type less characters.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256058509-19678-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
We have this sym_priv_size mechanism for attaching private areas
to struct symbol entries but annotate wasn't using it, adding
private areas to struct symbol in addition to a ->priv pointer.
Scrap all that and use the sym_priv_size mechanism.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256055940-19511-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
We need this because we get section relative addresses when
reading the symtabs, but when a tool like 'perf annotate' needs
to match these address to what 'objdump -dS' produces we need
the address + section back again.
So in annotate now we look at the 'struct hist_entry' instances
(that weren't really being used) so that we iterate only over
the symbols that had some hit and get the map where that
particular hit happened so that we can get the right address to
match with annotate.
Verified that at least:
perf annotate mmap_read_counter # Uses the ~/bin/perf binary
perf annotate --vmlinux /home/acme/git/build/perf/vmlinux intel_pmu_enable_all
on a 'perf record perf top' session seems to work.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1255979877-12533-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
During the Kernel Summit demo of perf/ftrace/timechart, there
was a feature request to have a process filter for timechart so
that you can zoom into one or a few processes that you are
really interested in.
This patch adds basic support for this feature, the -p
(--process) option now can select a PID or a process name to be
shown. Multiple -p options are allowed, and the combined set
will be included in the output.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020070939.7d0fb8a7@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[from KS feedback]
Currently, scheduler delays are shown in a mostly transparent,
light yellow color. This color is rather hard to see on several
screens, especially projectors.
This patch changes the color of the scheduler delays to be a
much more "hard" yellow that survived the kernel summit
projector.
Reported-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020064731.20ae126a@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The timechart wakeup arrows currently show no process
information when the waker/wakee are processes that are not
actually chosen to be shown on the timechart.
This patch fixes this oversight, by looking through all
processes (after giving preference to visible processes) as well
as falling back to just showing the PID if no name for the
process can be resolved.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020064649.0e4959b2@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
To cure a bunch of:
In file included from util/include/linux/bitmap.h:1,
from util/header.h:8,
from builtin-trace.c:7:
util/include/../../../../include/linux/bitmap.h:8:26: error:
linux/string.h: No such file or directory make: ***
[builtin-trace.o] Error 1 make: *** Waiting for unfinished
jobs....
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1255972296-11500-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Adds performance event information about branches
and branch misses to the default output of perf stat.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4ADC3975.8050109@klingt.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Check for libelf headers and glibc headers separately so that
the error message correctly identifies which package
installation is missing/needed.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
Cc: efault@gmx.de
Cc: fweisbec@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <4ADBCCE8.3060300@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add delay_secs sanity check to handle_keypress,
this fixes a division by zero crash.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4AD9EBFD.106@klingt.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Use DECLARE_BITMAP instead of an open coded array for our bitmap
of featured sections.
This makes the array an unsigned long instead of a u64 but since
we use a 256 bits bitmap, the array size shouldn't vary between
different boxes.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255795038-13751-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This provides a new set of bitmasked headers. A new field is
added in the perf headers that implements a bitmap storing
optional features present in the perf.data file.
The layout can be pictured like this:
(Usual perf headers)(Features bitmap)[Feature 0][Feature
n][Feature 255]
If the bit n is set, then the feature n is used in this file.
They are all set in order. This brings a backward and forward
compatibility.
The trace_info section has moved into such optional features,
this is the first and only one for now.
This is backward compatible with the .32 file version although
it doesn't support the previous separate trace.info file.
And finally it doesn't support the current interim development
version.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255792354-11304-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
When we count both branches and branch-misses it is useful to
print out the percentage of branch-misses:
# perf stat -e branches -e branch-misses /bin/true
Performance counter stats for '/bin/true':
401684 branches # 0.000 M/sec
23301 branch-misses # 5.801 %
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <20091018112923.GQ4808@kryten>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Use die() for exiting perf-probe with errors. This replaces
perror_exit(), msg_exit() and fprintf()+exit() with die(), and
uses die() in semantic_error().
This also renames 'die' local variables to 'dw_die' for avoiding
name confliction.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20091017000801.16556.46866.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Check libdwarf APIs for perf probe in tools/perf/Makefile. Since
dwarf_get_ranges() has been added from libdwarf 20081231 (and
it's the newest function used in probe-finder.c), this just
checks whether the function is defined.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20091017000752.16556.92051.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
In each case, if the NULL test on thread is needed, then the
dereference should be after the NULL test.
A simplified version of the semantic match that detects this
problem is as follows (http://coccinelle.lip6.fr/):
// <smpl>
@match exists@
expression x, E;
identifier fld;
@@
* x->fld
... when != \(x = E\|&x\)
* x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
LKML-Reference: <Pine.LNX.4.64.0910170842500.9213@ask.diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
We released the first version of perf with 0.0.1 in v2.6.31,
time to double our version number to 0.0.2 ;-)
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add a new option "--filter <filter_str>" to perf record, and
it should be right after "-e trace_point":
#./perf record -R -f -e irq:irq_handler_entry --filter irq==18
^C
# ./perf trace
perf-4303 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
See Documentation/trace/events.txt for the syntax of filter
expressions.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <4AD6955F.90602@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The (char *) for all the static strings was a fix for the
symptom and not the disease. The real issue was that the
function prototypes needed to be declared "const char *".
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194400.635935008@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The opterators '-' and '+' are not handled in the trace print
format.
To do: '++' and '--'.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194400.330843045@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add the irqs disabled, preemption count, need resched, and other
info that is shown in the latency format of ftrace.
# perf trace -l
perf-16457 2..s2. 53636.260344: kmem_cache_free: call_site=ffffffff811198f
perf-16457 2..s2. 53636.264330: kmem_cache_free: call_site=ffffffff811198f
perf-16457 2d.s4. 53636.300006: kmem_cache_free: call_site=ffffffff810d889
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194400.076588953@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The ftrace output events can have either arguments or no
arguments. The parser needs to be able to handle both.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194359.790221427@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The bprintk parsing was broken in more ways than one.
The file parsing was incorrect, and the words used by the
arguments are always 4 bytes aligned, even on 64-bit machines.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194359.520931637@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Even though an event may fail to parse, we should not kill the
entire report. The trace should still be able to show what it
can.
If an event fails to parse, a warning is printed, and the output
continues.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194359.190809589@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The trace format files now have a "signed" field. But we should
still be able to handle the kernels that do not have this field.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194358.888239553@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
New lines between args in the trace format can break the
parsing. This should not be the case.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194358.637991808@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The '*' is currently only treated as a multiplication, and it
needs to be handled as a typecast pointer.
This is the version used by trace-cmd.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194358.409327875@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The array used by the ftrace stack events (caller[x]) causes
issues with the parser. This adds code to handle the case, but
it also assumes that the array is of type long.
Note, this is a special case used (currently) only by the ftrace
user and kernel stack records.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194358.124833639@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The code to handle the '<' and '>' ops was all in place, but
they were not in the switch statement to consider them as valid
ops.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194357.807434040@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The handling of backslashes was broken. It would stop parsing
when encountering one. Also, '\n', '\t', '\r' and '\\' were not
converted.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194357.521974680@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kmem_alloc ftrace event format had a string that was broken up
by two tokens. "string 1" "string 2". This patch lets the parser
be able to handle the concatenation.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194357.253818714@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This was just being copy'n'pasted all over.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <20091013141629.GD21809@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Calling gettimeofday() at high frequency is painful for handicapped
boxen. The spot calling gettimeofday() is old unneeded debug code,
so remove it.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1255438640.7173.1.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Use strlen & macros instead of manually counting string lengths as
this is error prone and may lend to bugs.
Signed-off-by: Vincent Legoll <vincent.legoll@gmail.com>
Cc: Linus Torvalds <torvalds@osdl.org>
LKML-Reference: <4727185d0910130118m5387058dndb02ac9b384af9f0@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Enables 'perf probe' even if libdwarf is not installed. If libdwarf is
not found, 'perf probe' just disables dwarf support. Users can use
'perf probe' to set up new events by using kprobe_events format.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
LKML-Reference: <20091007222830.1684.25665.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Add perf probe subcommand that implements a kprobe-event setup helper
to the perf command.
This allows user to define kprobe events using C expressions (C line
numbers, C function names, and C local variables).
Usage
-----
perf probe [<options>] -P 'PROBEDEF' [-P 'PROBEDEF' ...]
-k, --vmlinux <file> vmlinux/module pathname
-P, --probe <p|r:[GRP/]NAME FUNC[+OFFS][@SRC]|@SRC:LINE [ARG ...]>
probe point definition, where
p: kprobe probe
r: kretprobe probe
GRP: Group name (optional)
NAME: Event name
FUNC: Function name
OFFS: Offset from function entry (in byte)
SRC: Source code path
LINE: Line number
ARG: Probe argument (local variable name or
kprobe-tracer argument format is supported.)
Changes in v4:
- Add _GNU_SOURCE macro for strndup().
Changes in v3:
- Remove -r option because perf always be used for online kernel.
- Check malloc/calloc results.
Changes in v2:
- Check synthesized string length.
- Rename perf kprobe to perf probe.
- Use spaces for separator and update usage comment.
- Check error paths in parse_probepoint().
- Check optimized-out variables.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
LKML-Reference: <20091008211737.29299.14784.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Timechart doesn't work if debugfs is not in /sys/kernel/debug/.
Fixed by using global debugfs_path which is filled in by perf.
Signed-off-by: Ashwin Chaugule <ashwinc@quicinc.com>
Cc: "Arjan van de Ven" <arjan@linux.intel.com>
LKML-Reference: <a751bdc6978478de6d10440e587a2cc7.squirrel@www.codeaurora.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Randy Dunlap reported that 'make NO_64BIT=1' fails to build
a pure 32-b it binary on 64-bit/64-bit x86 systems.
The reason is that we dont pass in the -m32 and GCC defaults
to -m64.
So pass it in - and also extend the warning message about libelf
dependencies - glibc-dev[el] is needed as well beyond the libelf
library.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: Message-Id: <20091005131729.78444bfb.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
