88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/* libc/sys/linux/signal.c - Signal handling functions */
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/* Written 2000 by Werner Almesberger */
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#include <signal.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <machine/syscall.h>
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/* avoid name space pollution */
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#define __NR___sgetmask __NR_sgetmask
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#define __NR___ssetmask __NR_ssetmask
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#define __NR___rt_sigtimedwait __NR_rt_sigtimedwait
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#define __NR___rt_sigpending __NR_rt_sigpending
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#define __NR___rt_sigprocmask __NR_rt_sigprocmask
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#define __NR___rt_sigsuspend __NR_rt_sigsuspend
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_syscall2(int,kill,pid_t,pid,int,sig)
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_syscall2(__sighandler_t,signal,int,signum,__sighandler_t,handler)
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_syscall0(int,pause)
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_syscall1(unsigned int,alarm,unsigned int,seconds)
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static _syscall2(int,__rt_sigpending,sigset_t *,set,size_t,size)
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static _syscall4(int,__rt_sigprocmask,int,how,const sigset_t *,set,sigset_t *,oldset,size_t,size)
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static _syscall2(int,__rt_sigsuspend,const sigset_t *,mask,size_t,size)
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static _syscall4(int,__rt_sigtimedwait,const sigset_t *,set,siginfo_t *,info,struct timespec *,timeout,size_t,size)
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int __sigsuspend (const sigset_t *mask)
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{
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return __rt_sigsuspend(mask, NSIG/8);
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}
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weak_alias(__sigsuspend,sigsuspend)
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int sigmask(int signum) /* BSD */
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{
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return 1 << signum;
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}
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int __libc_raise(int sig)
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{
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return kill(getpid(),sig);
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}
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weak_alias(__libc_raise,raise)
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int __sigpending(sigset_t *set)
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{
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return __rt_sigpending(set, NSIG/8);
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}
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weak_alias(__sigpending,sigpending)
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int __sigprocmask (int how,const sigset_t *set,sigset_t *oldset)
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{
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return __rt_sigprocmask(how, set, oldset, NSIG/8);
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}
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weak_alias(__sigprocmask,sigprocmask)
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int sigtimedwait(const sigset_t *set, siginfo_t *info,
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struct timespec *timeout)
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{
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return __rt_sigtimedwait(set, info, timeout, NSIG/8);
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}
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int sigwaitinfo(const sigset_t *set, siginfo_t *info)
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{
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return __rt_sigtimedwait(set, info, NULL, NSIG/8);
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}
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#if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 4
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static _syscall1(int,__ssetmask,int,newmask)
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static _syscall0(int,__sgetmask)
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int sigblock(int mask) /* BSD */
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{
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return __ssetmask(mask | __sgetmask());
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}
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int sigsetmask(int newmask) /* BSD */
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{
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return __ssetmask(newmask);
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}
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#endif
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const char *const sys_siglist[] = {
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#include "siglist.inc"
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};
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