/* $NetBSD: darwin_signal.c,v 1.19 2005/02/26 23:10:18 perry Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Emmanuel Dreyfus. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: darwin_signal.c,v 1.19 2005/02/26 23:10:18 perry Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int darwin_sys_sigaction(l, v, retval) struct lwp *l; void *v; register_t *retval; { struct darwin_sys_sigaction_args /* { syscallarg(int) signum; syscallarg(struct darwin___sigaction *) nsa; syscallarg(struct sigaction13 *) osa; } */ *uap = v; struct sys___sigaction_sigtramp_args cup; struct darwin___sigaction dsa; struct sigaction sa; struct sigaction *nsa, *osa; struct sigaction13 sa13; struct proc *p = l->l_proc; caddr_t sg = stackgap_init(p, 0); int error; if ((error = copyin(SCARG(uap, nsa), &dsa, sizeof(dsa))) != 0) return error; nsa = stackgap_alloc(p, &sg, sizeof(struct sigaction)); if (SCARG(uap, osa) != NULL) osa = stackgap_alloc(p, &sg, sizeof(struct sigaction)); else osa = NULL; sa.sa_handler = dsa.darwin_sa_handler.__sa_handler; native_sigset13_to_sigset(&dsa.darwin_sa_mask, &sa.sa_mask); if (dsa.darwin_sa_flags & ~DARWIN_SA_ALLBITS) DPRINTF(("darwin_sys_sigaction: ignoring bits (flags = %x)\n", dsa.darwin_sa_flags)); sa.sa_flags = dsa.darwin_sa_flags & DARWIN_SA_ALLBITS; if ((error = copyout(&sa, nsa, sizeof(sa))) != 0) return error; SCARG(&cup, signum) = SCARG(uap, signum); SCARG(&cup, nsa) = nsa; if (SCARG(uap, osa) != NULL) SCARG(&cup, osa) = osa; SCARG(&cup, tramp) = dsa.darwin_sa_tramp; SCARG(&cup, vers) = 1; if ((error = sys___sigaction_sigtramp(l, &cup, retval)) !=0) return error; if (SCARG(uap, osa) == NULL) return 0; if ((error = copyin(SCARG(&cup, osa), &sa, sizeof(sa))) != 0) return error; sa13.osa_handler = sa.sa_handler; sa13.osa_mask = sa.sa_mask.__bits[0]; native_sigset_to_sigset13(&sa.sa_mask, &sa13.osa_mask); sa13.osa_flags = sa.sa_flags; if ((error = copyout(&sa13, SCARG(uap, osa), sizeof(sa13))) != 0) return error; return 0; } void darwin_trapsignal(l, ksi) struct lwp *l; const struct ksiginfo *ksi; { if (mach_trapsignal1(l, ksi) != 0) trapsignal(l, ksi); return; } int darwin_tracesig(p, signo) struct proc *p; int signo; { struct darwin_emuldata *ded; struct lwp *l; int code[2]; int error; /* * If the process does not have softsignals, * we are done, normal signal delivery should * occur. */ ded = (struct darwin_emuldata *)p->p_emuldata; if ((ded->ded_flags & DARWIN_DED_SIGEXC) == 0) return 0; code[0] = MACH_SOFT_SIGNAL; code[1] = signo; l = proc_representative_lwp(p); error = mach_exception(l, MACH_EXC_SOFTWARE, code); /* Inhibit normal signal delivery */ return EINVAL; } int darwin_sys_sigprocmask(l, v, retval) struct lwp *l; void *v; register_t *retval; { struct darwin_sys_sigprocmask_args /* { syscallarg(int) how; syscallarg(sigset13_t *) set; syscallarg(sigset13_t *) oset; } */ *uap = v; struct sys___sigprocmask14_args cup; struct proc *p = l->l_proc; int error; sigset13_t kdset, kdoset; sigset_t kbset, kboset; sigset_t *ubset = NULL; sigset_t *uboset = NULL; caddr_t sg = stackgap_init(p, 0); ubset = stackgap_alloc(p, &sg, sizeof(*ubset)); if (SCARG(uap, oset) != NULL) uboset = stackgap_alloc(p, &sg, sizeof(*uboset)); if (SCARG(uap, set) != NULL) { error = copyin(SCARG(uap, set), &kdset, sizeof(kdset)); if (error != 0) return error; native_sigset13_to_sigset(&kdset, &kbset); if ((error = copyout(&kbset, ubset, sizeof(kbset))) != 0) return error; } SCARG(&cup, how) = SCARG(uap, how); SCARG(&cup, set) = ubset; SCARG(&cup, oset) = uboset; if ((error = sys___sigprocmask14(l, &cup, retval)) != 0) return error; if (SCARG(uap, oset) != NULL) { if ((error = copyin(uboset, &kboset, sizeof(kboset))) != 0) return error; native_sigset_to_sigset13(&kboset, &kdoset); if ((error = copyout(&kdoset, SCARG(uap, oset), sizeof(kdoset))) != 0) return error; } return 0; } void native_to_darwin_siginfo(ksi, dsi) const struct ksiginfo *ksi; struct darwin___siginfo *dsi; { dsi->darwin_si_signo = ksi->ksi_signo; dsi->darwin_si_errno = ksi->ksi_errno; dsi->darwin_si_code = ksi->ksi_code; dsi->darwin_si_pid = ksi->ksi_pid; dsi->darwin_si_uid = ksi->ksi_uid; dsi->darwin_si_status = ksi->ksi_status; dsi->darwin_si_addr = ksi->ksi_addr; (void)memcpy(&dsi->darwin_si_value, &ksi->ksi_sigval, sizeof(dsi->darwin_si_value)); dsi->darwin_si_band = ksi->ksi_band; return; }