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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>
This commit is contained in:
Masami Hiramatsu 2011-03-30 18:25:59 +09:00 committed by Arnaldo Carvalho de Melo
parent cc446446ff
commit 1d878083c2
1 changed files with 14 additions and 1 deletions
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15
tools/perf/util/probe-finder.c
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@ -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, static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem) 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) */ /* Walker on lines (Note: line number will not be sorted) */