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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2011-03-30 18:25:59 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-04-05 15:36:47 -0300 |
| commit | 1d878083c253fb2e2471b39e825447aca66fc05c (patch) | |
| tree | 55aa2651f09d1a2b85aef38a53cfed16770f9bd0 /tools | |
| parent | cc446446ff48e82c157dc8c937a3490f2a2ce535 (diff) | |
| download | linux-1d878083c253fb2e2471b39e825447aca66fc05c.tar.gz linux-1d878083c253fb2e2471b39e825447aca66fc05c.tar.bz2 linux-1d878083c253fb2e2471b39e825447aca66fc05c.zip | |
perf probe: Fix to find recursively inlined function
Fix die_find_inlinefunc() to return correct innermost inlined function
at given address. Without this fix, it returns the outermost inlined
function.
Cc: 2nddept-manager@sdl.hitachi.co.jp
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20110330092559.2132.78634.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/probe-finder.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 5473f11a9bc8..689ab462a188 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -497,7 +497,20 @@ static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data) static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, Dwarf_Die *die_mem) { - return die_find_child(sp_die, __die_find_inline_cb, &addr, die_mem); + Dwarf_Die tmp_die; + + sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die); + if (!sp_die) + return NULL; + + /* Inlined function could be recursive. Trace it until fail */ + while (sp_die) { + memcpy(die_mem, sp_die, sizeof(Dwarf_Die)); + sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, + &tmp_die); + } + + return die_mem; } /* Walker on lines (Note: line number will not be sorted) */ |