linux-toradex.git/tools/perf/builtin-probe.c, branch v2.6.35.8

perf probe: Don't call die()

2010-05-19T02:05:18+00:00

Functions that were calling xzalloc also returned -1 when, for other
reasons, it could fail, and the calleds are coping with failures, so
stop using die() and xzalloc().

Cc: Frédéric Weisbecker 
Cc: Masami Hiramatsu 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Tom Zanussi 
LKML-Reference: 
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Add --max-probes option

2010-04-26T18:35:20+00:00

Add --max-probes option to change the maximum limit of
findable probe points per event, since inlined function can be
expanded into thousands of probe points. Default value is 128.

Signed-off-by: Masami Hiramatsu 
Suggested-by: Arnaldo Carvalho de Melo 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
LKML-Reference: <20100421195640.24664.62984.stgit@localhost6.localdomain6>
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Fix to use correct debugfs path finder

2010-04-14T20:41:06+00:00

Instead of using debugfs_path, use debugfs_find_mountpoint()
to find actual debugfs path.

LKML-Reference: <20100414223928.14630.38326.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu 
Reported-by: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Frederic Weisbecker 
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Remove die() from probe-event code

2010-04-14T20:28:36+00:00

Remove die() and DIE_IF() code from util/probe-event.c since
these 'sudden death' in utility functions make reusing it from
other code (especially tui/gui) difficult.

Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Frederic Weisbecker 
LKML-Reference: <20100412171742.3790.33650.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Arnaldo Carvalho de Melo

perf probe: Support argument name

2010-04-14T20:26:04+00:00

Set given names to event arguments. The syntax is same as kprobe-tracer,
you can add 'NAME=' right before each argument.

e.g.
  ./perf probe vfs_read foo=file

 then, 'foo' is set to the argument name as below.

  ./perf probe -l
  probe:vfs_read       (on vfs_read@linux-2.6-tip/fs/read_write.c with foo)

Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Frederic Weisbecker 
LKML-Reference: <20100412171653.3790.74624.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Arnaldo Carvalho de Melo

perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR()

2010-04-14T09:26:44+00:00

Parsing an option from the command line with OPT_BOOLEAN on a
bool data type would not work on a big-endian machine due to the
manner in which the boolean was being cast into an int and
incremented. For example, running 'perf probe --list' on a
PowerPC machine would fail to properly set the list_events bool
and would therefore print out the usage information and
terminate.

This patch makes OPT_BOOLEAN work as expected with a bool
datatype. For cases where the original OPT_BOOLEAN was
intentionally being used to increment an int each time it was
passed in on the command line, this patch introduces OPT_INCR
with the old behaviour of OPT_BOOLEAN (the verbose variable is
currently the only such example of this).

I have reviewed every use of OPT_BOOLEAN to verify that a true
C99 bool was passed. Where integers were used, I verified that
they were only being used for boolean logic and changed them to
bools to ensure that they would not be mistakenly used as ints.
The major exception was the verbose variable which now uses
OPT_INCR instead of OPT_BOOLEAN.

Signed-off-by: Ian Munsie 
Acked-by: David S. Miller 
Cc:  # NOTE: wont apply to .3[34].x cleanly, please backport
Cc: Git development list 
Cc: Ian Munsie 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: KOSAKI Motohiro 
Cc: Hitoshi Mitake 
Cc: Rusty Russell 
Cc: Frederic Weisbecker 
Cc: Eric B Munson 
Cc: Valdis.Kletnieks@vt.edu
Cc: WANG Cong 
Cc: Thiago Farina 
Cc: Masami Hiramatsu 
Cc: Xiao Guangrong 
Cc: Jaswinder Singh Rajput 
Cc: Arjan van de Ven 
Cc: OGAWA Hirofumi 
Cc: Mike Galbraith 
Cc: Tom Zanussi 
Cc: Anton Blanchard 
Cc: John Kacur 
Cc: Li Zefan 
Cc: Steven Rostedt 
LKML-Reference: <1271147857-11604-1-git-send-email-imunsie@au.ibm.com>
Signed-off-by: Ingo Molnar

perf probe: Fix --line syntax help and document

2010-04-02T17:35:42+00:00

Just fix typos. --line option accepts ':START-END' syntax,
not ':START:END'.

Signed-off-by: Masami Hiramatsu 
Cc: Paul Mackerras 
Cc: Arnaldo Carvalho de Melo 
Cc: Peter Zijlstra 
Cc: Mike Galbraith 
Cc: Frederic Weisbecker 
Cc: systemtap 
Cc: DLE 
LKML-Reference: <20100402165038.23551.62590.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar

perf probe: Cleanup debuginfo related code

2010-03-22T17:47:35+00:00

Cleanup debuginfo related code to eliminate fragile code which
pointed by Ingo (Thanks!).
1) Invert logic of NO_DWARF_SUPPORT to DWARF_SUPPORT.
2) For removing assymetric/local variable ifdefs, introduce
  more helper functions.
3) Change options order to reduce the number of ifdefs.

Reported-by: Ingo Molnar 
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Arnaldo Carvalho de Melo 
Cc: Frederic Weisbecker 
Cc: Paul Mackerras 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
LKML-Reference: <1269274229-20442-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar

perf probe: Introduce kprobe_trace_event and perf_probe_event

2010-03-17T10:32:31+00:00

Introduce kprobe_trace_event and perf_probe_event and replace
old probe_point structure with it. probe_point structure is
not enough flexible nor extensible. New data structures
will help implementing further features.

Signed-off-by: Masami Hiramatsu 
Cc: systemtap 
Cc: DLE 
Cc: Frederic Weisbecker 
Cc: Arnaldo Carvalho de Melo 
Cc: Paul Mackerras 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
LKML-Reference: <20100316220612.32050.33806.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar

perf probe: Add --dry-run option

2010-03-17T10:32:31+00:00

Add --dry-run option for debugging and testing.

Signed-off-by: Masami Hiramatsu 
Cc: systemtap 
Cc: DLE 
Cc: Frederic Weisbecker 
Cc: Arnaldo Carvalho de Melo 
Cc: Paul Mackerras 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
LKML-Reference: <20100316220605.32050.6571.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar