[scudo] Use the releaseAndZeroPagesToOS function.

[cferris1000]

All of the code assumes that when the pages are released, the entry is zero'd, so use the correct function. On most systems, this does not change anything.

[llvmbot]

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Christopher Ferris (cferris1000)

Changes

All of the code assumes that when the pages are released, the entry is zero'd, so use the correct function. On most systems, this does not change anything.

---

Full diff: https://github.com/llvm/llvm-project/pull/71256.diff

1 Files Affected:

• (modified) compiler-rt/lib/scudo/standalone/secondary.h (+2-2)

diff --git a/compiler-rt/lib/scudo/standalone/secondary.h b/compiler-rt/lib/scudo/standalone/secondary.h
index c89e6a95f5a68a4..8dc4c87fa7c6e99 100644
--- a/compiler-rt/lib/scudo/standalone/secondary.h
+++ b/compiler-rt/lib/scudo/standalone/secondary.h
@@ -223,7 +223,7 @@ template <typename Config> class MapAllocatorCache {
                                          MAP_NOACCESS);
       }
     } else if (Interval == 0) {
-      Entry.MemMap.releasePagesToOS(Entry.CommitBase, Entry.CommitSize);
+      Entry.MemMap.releaseAndZeroPagesToOS(Entry.CommitBase, Entry.CommitSize);
       Entry.Time = 0;
     }
     do {
@@ -441,7 +441,7 @@ template <typename Config> class MapAllocatorCache {
         OldestTime = Entry.Time;
       return;
     }
-    Entry.MemMap.releasePagesToOS(Entry.CommitBase, Entry.CommitSize);
+    Entry.MemMap.releaseAndZeroPagesToOS(Entry.CommitBase, Entry.CommitSize);
     Entry.Time = 0;
   }