diff options
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/sigset.h | 35 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/pause.c | 2 |
2 files changed, 35 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/bits/sigset.h b/libc/sysdeps/linux/common/bits/sigset.h index 7c2ce0ebe..4ef22311a 100644 --- a/libc/sysdeps/linux/common/bits/sigset.h +++ b/libc/sysdeps/linux/common/bits/sigset.h @@ -175,7 +175,7 @@ _EXTERN_INLINE int \ NAME (CONST __sigset_t *__set, int __sig) \ { \ unsigned long __mask = __sigmask (__sig); \ - unsigned long __word = __sigword (__sig); \ + unsigned __word = __sigword (__sig); \ return BODY; \ } @@ -186,5 +186,38 @@ __SIGSETFN (__sigdelset, ((__set->__val[__word] &= ~__mask), 0), ) # undef __SIGSETFN # endif +# ifdef _LIBC +/* It's far too much PITA to __USE_EXTERN_INLINES from within libc. + * Especially since we want to inline only calls with const sig, + * but __USE_EXTERN_INLINES will inline all calls! + */ +static __always_inline unsigned long +const_sigismember(const __sigset_t *set, int sig) +{ + unsigned long mask = __sigmask(sig); + unsigned word = __sigword(sig); + return (set->__val[word] & mask); +} +# define __sigismember(set, sig) \ + (__builtin_constant_p(sig) ? (const_sigismember(set, sig) != 0) : __sigismember(set, sig)) +static __always_inline void +const_sigaddset(__sigset_t *set, int sig) +{ + unsigned long mask = __sigmask(sig); + unsigned word = __sigword(sig); + set->__val[word] |= mask; +} +# define __sigaddset(set, sig) \ + (__builtin_constant_p(sig) ? (const_sigaddset(set, sig), 0) : __sigaddset(set, sig)) +static __always_inline void +const_sigdelset(__sigset_t *set, int sig) +{ + unsigned long mask = __sigmask(sig); + unsigned word = __sigword(sig); + set->__val[word] &= ~mask; +} +# define __sigdelset(set, sig) \ + (__builtin_constant_p(sig) ? (const_sigdelset(set, sig), 0) : __sigdelset(set, sig)) +# endif #endif /* ! _SIGSET_H_fns. */ diff --git a/libc/sysdeps/linux/common/pause.c b/libc/sysdeps/linux/common/pause.c index 33eb409c6..ab16fa73c 100644 --- a/libc/sysdeps/linux/common/pause.c +++ b/libc/sysdeps/linux/common/pause.c @@ -25,7 +25,7 @@ __libc_pause (void) { sigset_t set; - __sigemptyset (&set); + /*__sigemptyset (&set); - why? */ sigprocmask (SIG_BLOCK, NULL, &set); /* pause is a cancellation point, but so is sigsuspend. |