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master 069b58b: * src/alloc.c (mark_memory): Avoid signed integer overfl
From: |
Philipp Stephani |
Subject: |
master 069b58b: * src/alloc.c (mark_memory): Avoid signed integer overflow |
Date: |
Sun, 2 Aug 2020 06:59:08 -0400 (EDT) |
branch: master
commit 069b58b7c852b59f8ef7642e21db339626045671
Author: Philipp Stephani <phst@google.com>
Commit: Philipp Stephani <phst@google.com>
* src/alloc.c (mark_memory): Avoid signed integer overflow
---
src/alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/alloc.c b/src/alloc.c
index e139d8c..be293cc 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -4861,7 +4861,7 @@ mark_memory (void const *start, void const *end)
On a host with 32-bit pointers and 64-bit Lisp_Objects,
a Lisp_Object might be split into registers saved into
non-adjacent words and P might be the low-order word's value. */
- p = (char *) ((intptr_t) p + (intptr_t) lispsym);
+ p = (char *) ((uintptr_t) p + (uintptr_t) lispsym);
mark_maybe_pointer (p);
verify (alignof (Lisp_Object) % GC_POINTER_ALIGNMENT == 0);
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