linux/tools/perf
Masami Hiramatsu 221d061182 perf probe: Fix to search local variables in appropriate scope
Fix perf probe to search local variables in appropriate local inlined
function scope. For example, pre_schedule() has only 2 local variables,
as below;

$ perf probe -L pre_schedule
<pre_schedule@/home/mhiramat/ksrc/linux-2.6/kernel/sched.c:0>
      0  static inline void pre_schedule(struct rq *rq, struct task_struct *prev)
         {
      2         if (prev->sched_class->pre_schedule)
      3                 prev->sched_class->pre_schedule(rq, prev);
         }

However, current perf probe shows 4 local variables on pre_schedule(),
because it searches variables in the caller(schedule()) scope.

$ perf probe -V pre_schedule
Available variables at pre_schedule
        @<schedule+445>
                int     cpu
                long unsigned int*      switch_count
                struct rq*      rq
                struct task_struct*     prev

This patch fixes this issue by searching variables in the local scope of
the instance of inlined function. Here is the result.

$ perf probe -V pre_schedule
Available variables at pre_schedule
        @<schedule+445>
                struct rq*      rq
                struct task_struct*     prev

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110259.19900.85664.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:28:45 -03:00
..
arch [S390] perf: add DWARF register lookup for s390 2011-01-05 12:47:31 +01:00
bench perf tool: Fix gcc 4.6.0 issues 2011-02-07 12:41:41 -02:00
config perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
Documentation perf probe: Support adding probes on offline kernel modules 2011-07-15 16:25:12 -04:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts perf script: Finish the rename from trace to script 2010-12-25 11:29:02 -02:00
util perf probe: Fix to search local variables in appropriate scope 2011-08-12 09:28:45 -03:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
builtin-annotate.c perf report/annotate/script: Add option to specify a CPU range 2011-07-05 10:44:44 +02:00
builtin-bench.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-buildid-cache.c perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
builtin-buildid-list.c Merge commit 'v2.6.37-rc8' into perf/core 2011-01-04 08:08:54 +01:00
builtin-diff.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-evlist.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
builtin-help.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-inject.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kmem.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kvm.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf lock: Dropping unsupported ':r' modifier 2011-08-08 09:41:35 -03:00
builtin-probe.c perf probe: Warn when more than one line are given 2011-08-12 09:27:11 -03:00
builtin-record.c perf evlist: Introduce 'disable' method 2011-07-25 11:06:19 -03:00
builtin-report.c perf report: Use ui__warning in some more places 2011-08-03 12:33:24 -03:00
builtin-sched.c perf sched: Usage leftover from trace -> script rename 2011-08-09 13:32:12 -03:00
builtin-script.c perf report/annotate/script: Add option to specify a CPU range 2011-07-05 10:44:44 +02:00
builtin-stat.c perf tools: De-opt the parse_events function 2011-07-21 10:41:11 +02:00
builtin-test.c perf tools: Make test use the preset debugfs path 2011-07-21 10:41:14 +02:00
builtin-timechart.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-top.c perf tools: De-opt the parse_events function 2011-07-21 10:41:11 +02:00
builtin.h perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
Makefile perf tools: Add support to install perf python extension 2011-08-08 12:54:26 -03:00
MANIFEST perf packaging: add memcpy to perf MANIFEST 2010-11-30 23:00:10 -02:00
perf-archive.sh perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
perf.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
perf.h perf record: Move perf_mmap__write_tail to perf.h 2011-01-22 19:56:29 -02:00