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| author | jhb <jhb@FreeBSD.org> | 2001-01-23 21:33:55 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-01-23 21:33:55 +0000 |
| commit | 2baf61c869b4296e01b13d2893e4c77453be2172 (patch) | |
| tree | 64c387a1986c920277536a5cfacba71641c9cf32 /sys/compat/svr4/svr4_signal.c | |
| parent | 9a868ba306394e8db18feb8fceabe43e1e8bf254 (diff) | |
| download | FreeBSD-src-2baf61c869b4296e01b13d2893e4c77453be2172.zip FreeBSD-src-2baf61c869b4296e01b13d2893e4c77453be2172.tar.gz | |
Proc locking.
Diffstat (limited to 'sys/compat/svr4/svr4_signal.c')
| -rw-r--r-- | sys/compat/svr4/svr4_signal.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/sys/compat/svr4/svr4_signal.c b/sys/compat/svr4/svr4_signal.c index 8b4e2af..87b9c78 100644 --- a/sys/compat/svr4/svr4_signal.c +++ b/sys/compat/svr4/svr4_signal.c @@ -480,7 +480,9 @@ sighold: sigset_t *set; set = stackgap_alloc(&sg, sizeof(sigset_t)); + PROC_LOCK(p); *set = p->p_sigmask; + PROC_UNLOCK(p); SIGDELSET(*set, signum); SCARG(&sa, sigmask) = set; return sigsuspend(p, &sa); @@ -504,7 +506,9 @@ svr4_sys_sigprocmask(p, uap) retval = p->p_retval; if (SCARG(uap, oset) != NULL) { /* Fix the return value first if needed */ + PROC_LOCK(p); bsd_to_svr4_sigset(&p->p_sigmask, &sss); + PROC_UNLOCK(p); if ((error = copyout(&sss, SCARG(uap, oset), sizeof(sss))) != 0) return error; } @@ -518,8 +522,7 @@ svr4_sys_sigprocmask(p, uap) svr4_to_bsd_sigset(&sss, &bss); - (void) splhigh(); - + PROC_LOCK(p); switch (SCARG(uap, how)) { case SVR4_SIG_BLOCK: SIGSETOR(p->p_sigmask, bss); @@ -539,8 +542,7 @@ svr4_sys_sigprocmask(p, uap) error = EINVAL; break; } - - (void) spl0(); + PROC_UNLOCK(p); return error; } @@ -560,8 +562,10 @@ svr4_sys_sigpending(p, uap) case 1: /* sigpending */ if (SCARG(uap, mask) == NULL) return 0; + PROC_LOCK(p); bss = p->p_siglist; SIGSETAND(bss, p->p_sigmask); + PROC_UNLOCK(p); bsd_to_svr4_sigset(&bss, &sss); break; @@ -628,9 +632,11 @@ svr4_sys_context(p, uap) switch (uap->func) { case 0: + PROC_LOCK(p); DPRINTF(("getcontext(%p)\n", uap->uc)); svr4_getcontext(p, &uc, &p->p_sigmask, sigonstack(cpu_getstack(p))); + PROC_UNLOCK(p); return copyout(&uc, uap->uc, sizeof(uc)); case 1: |
