*
* ---------------------------------------------------------------------------*/
+#include "PosixSource.h"
#include "Rts.h"
-#include "Storage.h"
-#include "MBlock.h"
+
#include "GC.h"
+#include "Storage.h"
#include "Compact.h"
#include "Task.h"
#include "Capability.h"
q = UNTAG_CLOSURE(p);
ASSERT(LOOKS_LIKE_CLOSURE_PTR(q));
- info = get_itbl(q);
// ignore static closures
//
+ // ToDo: This means we never look through IND_STATIC, which means
+ // isRetainer needs to handle the IND_STATIC case rather than
+ // raising an error.
+ //
// ToDo: for static closures, check the static link field.
// Problem here is that we sometimes don't set the link field, eg.
// for static closures with an empty SRT or CONSTR_STATIC_NOCAFs.
//
- if (!HEAP_ALLOCED(q)) {
+ if (!HEAP_ALLOCED_GC(q)) {
return p;
}
// ignore closures in generations that we're not collecting.
bd = Bdescr((P_)q);
- if (bd->gen_no > N) {
- return p;
- }
// if it's a pointer into to-space, then we're done
if (bd->flags & BF_EVACUATED) {
// large objects use the evacuated flag
if (bd->flags & BF_LARGE) {
+ if (get_itbl(q)->type == TSO &&
+ ((StgTSO *)p)->what_next == ThreadRelocated) {
+ p = (StgClosure *)((StgTSO *)p)->_link;
+ continue;
+ }
return NULL;
}
// check the mark bit for compacted steps
- if ((bd->flags & BF_COMPACTED) && is_marked((P_)q,bd)) {
+ if ((bd->flags & BF_MARKED) && is_marked((P_)q,bd)) {
return p;
}
+ info = q->header.info;
+
+ if (IS_FORWARDING_PTR(info)) {
+ // alive!
+ return (StgClosure*)UN_FORWARDING_PTR(info);
+ }
+
+ info = INFO_PTR_TO_STRUCT(info);
+
switch (info->type) {
case IND:
case IND_STATIC:
case IND_PERM:
- case IND_OLDGEN: // rely on compatible layout with StgInd
- case IND_OLDGEN_PERM:
// follow indirections
p = ((StgInd *)q)->indirectee;
continue;
- case EVACUATED:
- // alive!
- return ((StgEvacuated *)q)->evacuee;
-
case TSO:
if (((StgTSO *)q)->what_next == ThreadRelocated) {
- p = (StgClosure *)((StgTSO *)q)->link;
+ p = (StgClosure *)((StgTSO *)q)->_link;
continue;
}
return NULL;
{
StgIndStatic *c;
- for (c = (StgIndStatic *)revertible_caf_list; c != NULL;
+ for (c = (StgIndStatic *)revertible_caf_list;
+ c != (StgIndStatic *)END_OF_STATIC_LIST;
c = (StgIndStatic *)c->static_link)
{
SET_INFO(c, c->saved_info);
c->saved_info = NULL;
// could, but not necessary: c->static_link = NULL;
}
- revertible_caf_list = NULL;
+ revertible_caf_list = END_OF_STATIC_LIST;
}
void
{
StgIndStatic *c;
- for (c = (StgIndStatic *)caf_list; c != NULL;
+ for (c = (StgIndStatic *)caf_list;
+ c != (StgIndStatic*)END_OF_STATIC_LIST;
c = (StgIndStatic *)c->static_link)
{
evac(user, &c->indirectee);
}
- for (c = (StgIndStatic *)revertible_caf_list; c != NULL;
+ for (c = (StgIndStatic *)revertible_caf_list;
+ c != (StgIndStatic*)END_OF_STATIC_LIST;
c = (StgIndStatic *)c->static_link)
{
evac(user, &c->indirectee);