Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/sys/compat/netbsd32/netbsd32_signal.c

393 lines
10 KiB
C
Raw Blame History

/* $NetBSD: netbsd32_signal.c,v 1.7 2003/10/13 18:55:30 fvdl Exp $ */
/*
* Copyright (c) 1998, 2001 Matthew R. Green
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: netbsd32_signal.c,v 1.7 2003/10/13 18:55:30 fvdl Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/signalvar.h>
#include <sys/proc.h>
#include <sys/wait.h>
#include <uvm/uvm_extern.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
int
netbsd32_sigaction(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct netbsd32_sigaction_args /* {
syscallarg(int) signum;
syscallarg(const netbsd32_sigactionp_t) nsa;
syscallarg(netbsd32_sigactionp_t) osa;
} */ *uap = v;
struct sigaction nsa, osa;
struct netbsd32_sigaction *sa32p, sa32;
int error;
if (SCARG(uap, nsa)) {
sa32p =
(struct netbsd32_sigaction *)NETBSD32PTR64(SCARG(uap, nsa));
if (copyin(sa32p, &sa32, sizeof(sa32)))
return EFAULT;
nsa.sa_handler = (void *)NETBSD32PTR64(sa32.netbsd32_sa_handler);
nsa.sa_mask = sa32.netbsd32_sa_mask;
nsa.sa_flags = sa32.netbsd32_sa_flags;
}
error = sigaction1(l->l_proc, SCARG(uap, signum),
SCARG(uap, nsa) ? &nsa : 0,
SCARG(uap, osa) ? &osa : 0,
NULL, 0);
if (error)
return (error);
if (SCARG(uap, osa)) {
sa32.netbsd32_sa_handler = (netbsd32_sigactionp_t)(u_long)osa.sa_handler;
sa32.netbsd32_sa_mask = osa.sa_mask;
sa32.netbsd32_sa_flags = osa.sa_flags;
sa32p =
(struct netbsd32_sigaction *)NETBSD32PTR64(SCARG(uap, osa));
if (copyout(&sa32, sa32p, sizeof(sa32)))
return EFAULT;
}
return (0);
}
int
netbsd32___sigaltstack14(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct netbsd32___sigaltstack14_args /* {
syscallarg(const netbsd32_sigaltstackp_t) nss;
syscallarg(netbsd32_sigaltstackp_t) oss;
} */ *uap = v;
struct netbsd32_sigaltstack s32;
struct sigaltstack nss, oss;
int error;
if (SCARG(uap, nss)) {
error = copyin((caddr_t)NETBSD32PTR64(SCARG(uap, nss)), &s32,
sizeof(s32));
if (error)
return (error);
nss.ss_sp = (void *)NETBSD32PTR64(s32.ss_sp);
nss.ss_size = (size_t)s32.ss_size;
nss.ss_flags = s32.ss_flags;
}
error = sigaltstack1(l->l_proc,
SCARG(uap, nss) ? &nss : 0, SCARG(uap, oss) ? &oss : 0);
if (error)
return (error);
if (SCARG(uap, oss)) {
s32.ss_sp = (netbsd32_voidp)(u_long)oss.ss_sp;
s32.ss_size = (netbsd32_size_t)oss.ss_size;
s32.ss_flags = oss.ss_flags;
error = copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, oss)),
sizeof(s32));
if (error)
return (error);
}
return (0);
}
/* ARGSUSED */
int
netbsd32___sigaction14(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct netbsd32___sigaction14_args /* {
syscallarg(int) signum;
syscallarg(const struct sigaction *) nsa;
syscallarg(struct sigaction *) osa;
} */ *uap = v;
struct netbsd32_sigaction sa32;
struct sigaction nsa, osa;
int error;
if (SCARG(uap, nsa)) {
error = copyin((caddr_t)NETBSD32PTR64(SCARG(uap, nsa)), &sa32,
sizeof(sa32));
if (error)
return (error);
nsa.sa_handler = (void *)NETBSD32PTR64(sa32.netbsd32_sa_handler);
nsa.sa_mask = sa32.netbsd32_sa_mask;
nsa.sa_flags = sa32.netbsd32_sa_flags;
}
error = sigaction1(l->l_proc, SCARG(uap, signum),
SCARG(uap, nsa) ? &nsa : 0, SCARG(uap, osa) ? &osa : 0,
NULL, 0);
if (error)
return (error);
if (SCARG(uap, osa)) {
sa32.netbsd32_sa_handler = (netbsd32_voidp)(u_long)osa.sa_handler;
sa32.netbsd32_sa_mask = osa.sa_mask;
sa32.netbsd32_sa_flags = osa.sa_flags;
error = copyout(&sa32, (caddr_t)NETBSD32PTR64(SCARG(uap, osa)),
sizeof(sa32));
if (error)
return (error);
}
return (0);
}
/* ARGSUSED */
int
netbsd32___sigaction_sigtramp(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct netbsd32___sigaction_sigtramp_args /* {
syscallarg(int) signum;
syscallarg(const netbsd32_sigactionp_t) nsa;
syscallarg(netbsd32_sigactionp_t) osa;
syscallarg(netbsd32_voidp) tramp;
syscallarg(int) vers;
} */ *uap = v;
struct proc *p = l->l_proc;
struct netbsd32_sigaction sa32;
struct sigaction nsa, osa;
int error;
if (SCARG(uap, nsa)) {
error = copyin((caddr_t)NETBSD32PTR64(SCARG(uap, nsa)), &sa32,
sizeof(sa32));
if (error)
return (error);
nsa.sa_handler = (void *)NETBSD32PTR64(sa32.netbsd32_sa_handler);
nsa.sa_mask = sa32.netbsd32_sa_mask;
nsa.sa_flags = sa32.netbsd32_sa_flags;
}
error = sigaction1(p, SCARG(uap, signum),
SCARG(uap, nsa) ? &nsa : 0, SCARG(uap, osa) ? &osa : 0,
NETBSD32PTR64(SCARG(uap, tramp)), SCARG(uap, vers));
if (error)
return (error);
if (SCARG(uap, osa)) {
sa32.netbsd32_sa_handler = (netbsd32_voidp)(u_long)osa.sa_handler;
sa32.netbsd32_sa_mask = osa.sa_mask;
sa32.netbsd32_sa_flags = osa.sa_flags;
error = copyout(&sa32, (caddr_t)NETBSD32PTR64(SCARG(uap, osa)),
sizeof(sa32));
if (error)
return (error);
}
return (0);
}
void
netbsd32_si32_to_si(siginfo_t *si, siginfo32_t *si32)
{
memset(si, 0, sizeof (*si));
si->si_signo = si32->si_signo;
si->si_code = si32->si_code;
si->si_errno = si32->si_errno;
switch (si32->si_signo) {
case SIGILL:
case SIGBUS:
case SIGSEGV:
case SIGFPE:
case SIGTRAP:
si->si_addr = (void *)NETBSD32PTR64(si32->si_addr);
si->si_trap = si32->si_trap;
break;
case SIGALRM:
case SIGVTALRM:
case SIGPROF:
si->si_pid = si32->si_pid;
si->si_uid = si32->si_uid;
/*
* XXX sival_ptr is currently unused.
*/
si->si_sigval.sival_int = si32->si_sigval.sival_int;
break;
case SIGCHLD:
si->si_pid = si32->si_pid;
si->si_uid = si32->si_uid;
si->si_utime = si32->si_utime;
si->si_stime = si32->si_stime;
break;
case SIGURG:
case SIGIO:
si->si_band = si32->si_band;
si->si_fd = si32->si_fd;
break;
}
}
void
netbsd32_si_to_si32(siginfo32_t *si32, siginfo_t *si)
{
memset(si32, 0, sizeof (*si32));
si32->si_signo = si->si_signo;
si32->si_code = si->si_code;
si32->si_errno = si->si_errno;
switch (si32->si_signo) {
case SIGILL:
case SIGBUS:
case SIGSEGV:
case SIGFPE:
case SIGTRAP:
si32->si_addr = (uint32_t)(uintptr_t)si->si_addr;
si32->si_trap = si->si_trap;
break;
case SIGALRM:
case SIGVTALRM:
case SIGPROF:
si32->si_pid = si->si_pid;
si32->si_uid = si->si_uid;
/*
* XXX sival_ptr is currently unused.
*/
si32->si_sigval.sival_int = si->si_sigval.sival_int;
break;
case SIGCHLD:
si32->si_pid = si->si_pid;
si32->si_uid = si->si_uid;
si32->si_status = si->si_status;
si32->si_utime = si->si_utime;
si32->si_stime = si->si_stime;
break;
case SIGURG:
case SIGIO:
si32->si_band = si->si_band;
si32->si_fd = si->si_fd;
break;
}
}
void
getucontext32(struct lwp *l, ucontext32_t *ucp)
{
struct proc *p;
p = l->l_proc;
ucp->uc_flags = 0;
ucp->uc_link = (uint32_t)(intptr_t)l->l_ctxlink;
(void)sigprocmask1(p, 0, NULL, &ucp->uc_sigmask);
ucp->uc_flags |= _UC_SIGMASK;
/*
* The (unsupplied) definition of the `current execution stack'
* in the System V Interface Definition appears to allow returning
* the main context stack.
*/
if ((p->p_sigctx.ps_sigstk.ss_flags & SS_ONSTACK) == 0) {
ucp->uc_stack.ss_sp = USRSTACK32;
ucp->uc_stack.ss_size = ctob(p->p_vmspace->vm_ssize);
ucp->uc_stack.ss_flags = 0; /* XXX, def. is Very Fishy */
} else {
/* Simply copy alternate signal execution stack. */
ucp->uc_stack.ss_sp =
(uint32_t)(intptr_t)p->p_sigctx.ps_sigstk.ss_sp;
ucp->uc_stack.ss_size = p->p_sigctx.ps_sigstk.ss_size;
ucp->uc_stack.ss_flags = p->p_sigctx.ps_sigstk.ss_flags;
}
ucp->uc_flags |= _UC_STACK;
cpu_getmcontext32(l, &ucp->uc_mcontext, &ucp->uc_flags);
}
/* ARGSUSED */
int
netbsd32_getcontext(struct lwp *l, void *v, register_t *retval)
{
struct netbsd32_getcontext_args /* {
syscallarg(netbsd32_ucontextp) ucp;
} */ *uap = v;
ucontext32_t uc;
getucontext32(l, &uc);
return copyout(&uc, NETBSD32PTR64(SCARG(uap, ucp)),
sizeof (ucontext32_t));
}
int
setucontext32(struct lwp *l, const ucontext32_t *ucp)
{
struct proc *p;
int error;
p = l->l_proc;
if ((error = cpu_setmcontext32(l, &ucp->uc_mcontext,
ucp->uc_flags)) != 0)
return (error);
l->l_ctxlink = (void *)(intptr_t)ucp->uc_link;
/*
* We might want to take care of the stack portion here but currently
* don't; see the comment in getucontext().
*/
if ((ucp->uc_flags & _UC_SIGMASK) != 0)
sigprocmask1(p, SIG_SETMASK, &ucp->uc_sigmask, NULL);
return 0;
}
/* ARGSUSED */
int
netbsd32_setcontext(struct lwp *l, void *v, register_t *retval)
{
struct netbsd32_setcontext_args /* {
syscallarg(netbsd32_ucontextp) ucp;
} */ *uap = v;
ucontext32_t uc;
int error;
void *p;
p = NETBSD32PTR64(SCARG(uap, ucp));
if (p == NULL)
exit1(l, W_EXITCODE(0, 0));
else if ((error = copyin(p, &uc, sizeof (uc))) != 0 ||
(error = setucontext32(l, &uc)) != 0)
return (error);
return (EJUSTRETURN);
}
Reference in New Issue View Git Blame Copy Permalink