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-rw-r--r--erts/emulator/beam/erl_gc.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 679a3645ba..6dfccfe52f 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -1935,7 +1935,13 @@ setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset)
roots[n].sz = 1;
n++;
}
-
+#ifdef HAVE_DTRACE
+ if (is_not_immed(p->dt_utag)) {
+ roots[n].v = &p->dt_utag;
+ roots[n].sz = 1;
+ n++;
+ }
+#endif
ASSERT(is_nil(p->tracer_proc) ||
is_internal_pid(p->tracer_proc) ||
is_internal_port(p->tracer_proc));
@@ -2472,6 +2478,13 @@ offset_mqueue(Process *p, Sint offs, char* area, Uint area_size)
if (is_boxed(mesg) && in_area(ptr_val(mesg), area, area_size)) {
ERL_MESSAGE_TOKEN(mp) = offset_ptr(mesg, offs);
}
+#ifdef HAVE_DTRACE
+ mesg = ERL_MESSAGE_DT_UTAG(mp);
+ if (is_boxed(mesg) && in_area(ptr_val(mesg), area, area_size)) {
+ ERL_MESSAGE_DT_UTAG(mp) = offset_ptr(mesg, offs);
+ }
+#endif
+
ASSERT((is_nil(ERL_MESSAGE_TOKEN(mp)) ||
is_tuple(ERL_MESSAGE_TOKEN(mp)) ||
is_atom(ERL_MESSAGE_TOKEN(mp))));
@@ -2491,6 +2504,9 @@ offset_one_rootset(Process *p, Sint offs, char* area, Uint area_size,
offset_heap_ptr(&p->fvalue, 1, offs, area, area_size);
offset_heap_ptr(&p->ftrace, 1, offs, area, area_size);
offset_heap_ptr(&p->seq_trace_token, 1, offs, area, area_size);
+#ifdef HAVE_DTRACE
+ offset_heap_ptr(&p->dt_utag, 1, offs, area, area_size);
+#endif
offset_heap_ptr(&p->group_leader, 1, offs, area, area_size);
offset_mqueue(p, offs, area, area_size);
offset_heap_ptr(p->stop, (STACK_START(p) - p->stop), offs, area, area_size);