1 files changed, 37 insertions, 4 deletions

diff --git a/erts/emulator/hipe/hipe_gc.c b/erts/emulator/hipe/hipe_gc.c
index 68c65dea27..e6ce7ce628 100644
--- a/erts/emulator/hipe/hipe_gc.c
+++ b/erts/emulator/hipe/hipe_gc.c
@@ -38,7 +38,7 @@ Eterm *fullsweep_nstack(Process *p, Eterm *n_htop)
     /* known nstack walk state */
     Eterm *nsp;
     Eterm *nsp_end;
-    const struct sdesc *sdesc;
+    const struct hipe_sdesc *sdesc;
     unsigned int sdesc_size;
     unsigned long ra;
     unsigned int i;
@@ -123,7 +123,7 @@ void gensweep_nstack(Process *p, Eterm **ptr_old_htop, Eterm **ptr_n_htop)
     /* known nstack walk state */
     Eterm *nsp;
     Eterm *nsp_end;
-    const struct sdesc *sdesc;
+    const struct hipe_sdesc *sdesc;
     unsigned int sdesc_size;
     unsigned long ra;
     unsigned int i;
@@ -244,7 +244,7 @@ Eterm *sweep_literals_nstack(Process *p, Eterm *old_htop, char *area,
     /* known nstack walk state */
     Eterm *nsp;
     Eterm *nsp_end;
-    const struct sdesc *sdesc;
+    const struct hipe_sdesc *sdesc;
     /* arch-specific nstack walk state */
     struct nstack_walk_state walk_state;
 
@@ -311,7 +311,7 @@ nstack_any_heap_ref_ptrs(Process *rp, char* mod_start, Uint mod_size)
 {
     Eterm *nsp;
     Eterm *nsp_end;
-    const struct sdesc *sdesc;
+    const struct hipe_sdesc *sdesc;
     /* arch-specific nstack walk state */
     struct nstack_walk_state walk_state;
 
@@ -356,3 +356,36 @@ nstack_any_heap_ref_ptrs(Process *rp, char* mod_start, Uint mod_size)
     }
     return 0;
 }
+
+int
+nstack_any_cps_in_segment(Process *p, char* seg_start, Uint seg_size)
+{
+    Eterm *nsp;
+    Eterm *nsp_end;
+    const struct hipe_sdesc *sdesc;
+    /* arch-specific nstack walk state */
+    struct nstack_walk_state walk_state;
+
+    if (!p->hipe.nstack || !nstack_walk_init_check(p))
+	return 0;
+    ASSERT(p->hipe.nsp && p->hipe.nstend);
+    nsp = nstack_walk_nsp_begin(p);
+    nsp_end = nstack_walk_nsp_end(p);
+    sdesc = nstack_walk_init_sdesc_ignore_trap(p, &walk_state);
+
+    /* Check the topmost frame */
+    if (ErtsInArea(sdesc->bucket.hvalue, seg_start, seg_size))
+	return 1;
+
+    while (!nstack_walk_nsp_reached_end(nsp, nsp_end)) {
+	unsigned sdesc_size = nstack_walk_frame_size(sdesc);
+	unsigned long ra = nstack_walk_frame_ra(nsp, sdesc);
+	if (ra == (unsigned long)nbif_stack_trap_ra)
+	    ra = (unsigned long)p->hipe.ngra;
+	if (ErtsInArea(ra, seg_start, seg_size))
+            return 1;
+        sdesc = hipe_find_sdesc(ra);
+        nsp = nstack_walk_next_frame(nsp, sdesc_size);
+    }
+    return 0;
+}