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From: Sebastian Huber <sh@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] Fix undefined behavior: left-shifting into the sign
 bit.
X-Act-Checkin: newlib-cygwin
X-Git-Author: Konstantin Belousov <kib@FreeBSD.org>
X-Git-Refname: refs/heads/master
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Date: Fri, 24 Jun 2022 05:42:24 +0000 (GMT)
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https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3D5e7a2b174ae=
1a54dd5cdd3c19455c6b81d5133f8

commit 5e7a2b174ae1a54dd5cdd3c19455c6b81d5133f8
Author: Konstantin Belousov <kib@FreeBSD.org>
Date:   Mon Dec 23 20:18:05 2019 +0000

    Fix undefined behavior: left-shifting into the sign bit.
   =20
    Reviewed by:    dim, markj
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D22898

Diff:
---
 newlib/libc/sys/rtems/include/sys/bitset.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/sys/rtems/include/sys/bitset.h b/newlib/libc/sys/r=
tems/include/sys/bitset.h
index a1fd8b316..9ff18f4f3 100644
--- a/newlib/libc/sys/rtems/include/sys/bitset.h
+++ b/newlib/libc/sys/rtems/include/sys/bitset.h
@@ -44,7 +44,7 @@
 #define	__constexpr_cond(expr)	(__builtin_constant_p((expr)) && (expr))
=20
 #define	__bitset_mask(_s, n)						\
-	(1L << (__constexpr_cond(__bitset_words((_s)) =3D=3D 1) ?		\
+	(1UL << (__constexpr_cond(__bitset_words((_s)) =3D=3D 1) ?		\
 	    (__size_t)(n) : ((n) % _BITSET_BITS)))
=20
 #define	__bitset_word(_s, n)						\