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-rw-r--r--gdb/valops.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/gdb/valops.c b/gdb/valops.c
index d9ce2f2..e1decf0 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -2449,6 +2449,12 @@ value_find_oload_method_list (struct value **argp, const char *method,
ADL overload candidates when performing overload resolution for a fully
qualified name.
+ If NOSIDE is EVAL_AVOID_SIDE_EFFECTS, then OBJP's memory cannot be
+ read while picking the best overload match (it may be all zeroes and thus
+ not have a vtable pointer), in which case skip virtual function lookup.
+ This is ok as typically EVAL_AVOID_SIDE_EFFECTS is only used to determine
+ the result type.
+
Note: This function does *not* check the value of
overload_resolution. Caller must check it to see whether overload
resolution is permitted. */
@@ -2458,7 +2464,8 @@ find_overload_match (struct value **args, int nargs,
const char *name, enum oload_search_type method,
struct value **objp, struct symbol *fsym,
struct value **valp, struct symbol **symp,
- int *staticp, const int no_adl)
+ int *staticp, const int no_adl,
+ const enum noside noside)
{
struct value *obj = (objp ? *objp : NULL);
struct type *obj_type = obj ? value_type (obj) : NULL;
@@ -2764,9 +2771,13 @@ find_overload_match (struct value **args, int nargs,
{
if (src_method_oload_champ >= 0)
{
- if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, method_oload_champ))
- *valp = value_virtual_fn_field (&temp, fns_ptr, method_oload_champ,
- basetype, boffset);
+ if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, method_oload_champ)
+ && noside != EVAL_AVOID_SIDE_EFFECTS)
+ {
+ *valp = value_virtual_fn_field (&temp, fns_ptr,
+ method_oload_champ, basetype,
+ boffset);
+ }
else
*valp = value_fn_field (&temp, fns_ptr, method_oload_champ,
basetype, boffset);