Backport #146 #148 #150 (#152)

Backport #146, #148, #150

---------

Co-authored-by: Kunshan Wang <wks1986@gmail.com>
Co-authored-by: mmtkgc-bot <mmtkgc.bot@gmail.com>

Author: 3 people

julia/mmtk_julia.c

@@ -333,13 +333,13 @@ void scan_vm_specific_roots(RootsWorkClosure* closure)
     (closure->report_tpinned_nodes_func)(tpinned_buf.ptr, tpinned_len, tpinned_buf.cap, closure->data, false);
 }
 
-JL_DLLEXPORT void scan_julia_exc_obj(void* obj_raw, void* closure, ProcessEdgeFn process_edge) {
+JL_DLLEXPORT void scan_julia_exc_obj(void* obj_raw, void* closure, ProcessSlotFn process_slot) {
     jl_task_t *ta = (jl_task_t*)obj_raw;
 
     if (ta->excstack) { // inlining label `excstack` from mark_loop
         // if it is not managed by MMTk, nothing needs to be done because the object does not need to be scanned
         if (mmtk_object_is_managed_by_mmtk(ta->excstack)) {
-            process_edge(closure, &ta->excstack);
+            process_slot(closure, &ta->excstack);
         }
         jl_excstack_t *excstack = ta->excstack;
         size_t itr = ta->excstack->top;
@@ -355,19 +355,19 @@ JL_DLLEXPORT void scan_julia_exc_obj(void* obj_raw, void* closure, ProcessEdgeFn
                 // GC-managed values inside.
                 size_t njlvals = jl_bt_num_jlvals(bt_entry);
                 while (jlval_index < njlvals) {
-                    jl_value_t** new_obj_edge = &bt_entry[2 + jlval_index].jlvalue;
+                    jl_value_t** new_obj_slot = &bt_entry[2 + jlval_index].jlvalue;
                     jlval_index += 1;
-                    process_edge(closure, new_obj_edge);
+                    process_slot(closure, new_obj_slot);
                 }
                 jlval_index = 0;
             }
 
             jl_bt_element_t *stack_raw = (jl_bt_element_t *)(excstack+1);
-            jl_value_t** stack_obj_edge = &stack_raw[itr-1].jlvalue;
+            jl_value_t** stack_obj_slot = &stack_raw[itr-1].jlvalue;
 
             itr = jl_excstack_next(excstack, itr);
             jlval_index = 0;
-            process_edge(closure, stack_obj_edge);
+            process_slot(closure, stack_obj_slot);
         }
     }
 }

mmtk/Cargo.lock

@@ -31,7 +31,7 @@ lazy_static = "1.1"
 # - change branch
 # - change repo name
 # But other changes including adding/removing whitespaces in commented lines may break the CI
-mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev="5a01555b5aee984b634f81e9d137f1ae0410fd39" }
+mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "56b2521d2b99848ee0613a0a5288fe6d81b754ba" }
 # Uncomment the following to build locally
 # mmtk = { path = "../../mmtk-core" }
 log = {version = "0.4", features = ["max_level_trace", "release_max_level_off"] }