diff options
Diffstat (limited to 'libc/sysdeps/linux/common/sigprocmask.c')
| -rw-r--r-- | libc/sysdeps/linux/common/sigprocmask.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/sigprocmask.c b/libc/sysdeps/linux/common/sigprocmask.c new file mode 100644 index 000000000..7b5c4021d --- /dev/null +++ b/libc/sysdeps/linux/common/sigprocmask.c @@ -0,0 +1,63 @@ +/* vi: set sw=4 ts=4: */ +/* + * sigprocmask() for uClibc + * + * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org> + * + * GNU Library General Public License (LGPL) version 2 or later. + */ + +#include "syscalls.h" +#include <signal.h> + +#undef sigprocmask + +#ifdef __NR_rt_sigprocmask + +#define __NR___rt_sigprocmask __NR_rt_sigprocmask +_syscall4(int, __rt_sigprocmask, int, how, const sigset_t *, set, + sigset_t *, oldset, size_t, size); + +int sigprocmask(int how, const sigset_t * set, sigset_t * oldset) +{ + if (set && +#if (SIG_BLOCK == 0) && (SIG_UNBLOCK == 1) && (SIG_SETMASK == 2) + (((unsigned int) how) > 2) +#else +#warning "compile time assumption violated.. slow path..." + ((how != SIG_BLOCK) && (how != SIG_UNBLOCK) + && (how != SIG_SETMASK)) +#endif + ) { + __set_errno(EINVAL); + return -1; + } + return __rt_sigprocmask(how, set, oldset, _NSIG / 8); +} + + +#else + +#define __NR___syscall_sigprocmask __NR_sigprocmask +static inline +_syscall3(int, __syscall_sigprocmask, int, how, const sigset_t *, set, + sigset_t *, oldset); + +int sigprocmask(int how, const sigset_t * set, sigset_t * oldset) +{ + if (set && +#if (SIG_BLOCK == 0) && (SIG_UNBLOCK == 1) && (SIG_SETMASK == 2) + (((unsigned int) how) > 2) +#else +#warning "compile time assumption violated.. slow path..." + ((how != SIG_BLOCK) && (how != SIG_UNBLOCK) + && (how != SIG_SETMASK)) +#endif + ) { + __set_errno(EINVAL); + return -1; + } + return (__syscall_sigprocmask(how, set, oldset)); +} +#endif + |