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-rw-r--r--tools/perf/util/probe-finder.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index a2d1f790d937..abcaec555204 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -329,25 +329,35 @@ static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
return die_find_child(sp_die, __die_find_inline_cb, &addr, die_mem);
}
+struct __find_variable_param {
+ const char *name;
+ Dwarf_Addr addr;
+};
+
static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
{
- const char *name = data;
+ struct __find_variable_param *fvp = data;
int tag;
tag = dwarf_tag(die_mem);
if ((tag == DW_TAG_formal_parameter ||
tag == DW_TAG_variable) &&
- die_compare_name(die_mem, name))
+ die_compare_name(die_mem, fvp->name))
return DIE_FIND_CB_FOUND;
- return DIE_FIND_CB_CONTINUE;
+ if (dwarf_haspc(die_mem, fvp->addr))
+ return DIE_FIND_CB_CONTINUE;
+ else
+ return DIE_FIND_CB_SIBLING;
}
-/* Find a variable called 'name' */
-static Dwarf_Die *die_find_variable(Dwarf_Die *sp_die, const char *name,
- Dwarf_Die *die_mem)
+/* Find a variable called 'name' at given address */
+static Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
+ Dwarf_Addr addr, Dwarf_Die *die_mem)
{
- return die_find_child(sp_die, __die_find_variable_cb, (void *)name,
+ struct __find_variable_param fvp = { .name = name, .addr = addr};
+
+ return die_find_child(sp_die, __die_find_variable_cb, (void *)&fvp,
die_mem);
}
@@ -731,7 +741,7 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
pr_debug("Searching '%s' variable in context.\n",
pf->pvar->var);
/* Search child die for local variables and parameters. */
- if (die_find_variable(sp_die, pf->pvar->var, &vr_die))
+ if (die_find_variable_at(sp_die, pf->pvar->var, pf->addr, &vr_die))
ret = convert_variable(&vr_die, pf);
else {
/* Search upper class */