diff options
Diffstat (limited to 'includes')
| -rw-r--r-- | includes/rts/StablePtr.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/includes/rts/StablePtr.h b/includes/rts/StablePtr.h index f42c353d2b..56113b9f81 100644 --- a/includes/rts/StablePtr.h +++ b/includes/rts/StablePtr.h @@ -31,5 +31,9 @@ extern DLL_IMPORT_RTS spEntry *stable_ptr_table; EXTERN_INLINE StgPtr deRefStablePtr(StgStablePtr sp) { - return stable_ptr_table[(StgWord)sp].addr; + // acquire load to ensure that we see the new SPT if it has been recently + // enlarged. + const spEntry *spt = ACQUIRE_LOAD(&stable_ptr_table); + // acquire load to ensure that the referenced object is visible. + return ACQUIRE_LOAD(&spt[(StgWord)sp].addr); } |