Author: kib
Date: Mon Dec 30 00:49:49 2019
New Revision: 356193
URL: https://svnweb.freebsd.org/changeset/base/356193
Log:
MFC r356039:
Fix undefined behavior: left-shifting into the sign bit.
Modified:
stable/12/sys/sys/_sigset.h
stable/12/sys/sys/bitset.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/sys/_sigset.h
==============================================================================
--- stable/12/sys/sys/_sigset.h Mon Dec 30 00:46:10 2019 (r356192)
+++ stable/12/sys/sys/_sigset.h Mon Dec 30 00:49:49 2019 (r356193)
@@ -47,7 +47,7 @@
#define _SIG_MAXSIG 128
#define _SIG_IDX(sig) ((sig) - 1)
#define _SIG_WORD(sig) (_SIG_IDX(sig) >> 5)
-#define _SIG_BIT(sig) (1 << (_SIG_IDX(sig) & 31))
+#define _SIG_BIT(sig) (1U << (_SIG_IDX(sig) & 31))
#define _SIG_VALID(sig) ((sig) <= _SIG_MAXSIG && (sig) > 0)
typedef struct __sigset {
Modified: stable/12/sys/sys/bitset.h
==============================================================================
--- stable/12/sys/sys/bitset.h Mon Dec 30 00:46:10 2019 (r356192)
+++ stable/12/sys/sys/bitset.h Mon Dec 30 00:49:49 2019 (r356193)
@@ -35,7 +35,7 @@
#define _SYS_BITSET_H_
#define __bitset_mask(_s, n)
\
- (1L << ((__bitset_words((_s)) == 1) ? \
+ (1UL << ((__bitset_words((_s)) == 1) ? \
(__size_t)(n) : ((n) % _BITSET_BITS)))
#define __bitset_word(_s, n)
\
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