From: Alan Modra <amodra@gmail.com>
Date: Thu, 2 Jun 2022 06:40:30 +0000 (+0930)
Subject: ubsan: undefined shift in frag_align_code
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e0ad09cfa5f0672ee917de2c56a27427e6908220;p=binutils-gdb.git

ubsan: undefined shift in frag_align_code

	* frags.c (MAX_MEM_FOR_RS_ALIGN_CODE): Avoid signed integer
	overflow.
---

diff --git a/gas/frags.c b/gas/frags.c
index f5afe1a49b5..8e88496f37c 100644
--- a/gas/frags.c
+++ b/gas/frags.c
@@ -367,7 +367,7 @@ frag_align_pattern (int alignment, const char *fill_pattern,
 # ifndef HANDLE_ALIGN
 #  define MAX_MEM_FOR_RS_ALIGN_CODE  1
 # else
-#  define MAX_MEM_FOR_RS_ALIGN_CODE  ((1 << alignment) - 1)
+#  define MAX_MEM_FOR_RS_ALIGN_CODE  (((size_t) 1 << alignment) - 1)
 # endif
 #endif