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/* $NetBSD: netbsd32_lwp.c,v 1.23 2021/01/14 02:51:52 simonb Exp $ */
/*
* Copyright (c) 2005, 2006, 2007, 2020 The NetBSD Foundation.
* 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.
*
* 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: netbsd32_lwp.c,v 1.23 2021/01/14 02:51:52 simonb Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/dirent.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/syscallargs.h>
#include <sys/lwpctl.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/netbsd32/netbsd32_conv.h>
/* Sycalls conversion */
int
netbsd32__lwp_create(struct lwp *l, const struct netbsd32__lwp_create_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_ucontextp) ucp;
syscallarg(netbsd32_u_long) flags;
syscallarg(netbsd32_lwpidp) new_lwp;
} */
struct proc *p = l->l_proc;
ucontext32_t *newuc = NULL;
lwp_t *l2;
int error;
KASSERT(p->p_emul->e_ucsize == sizeof(*newuc));
newuc = kmem_alloc(sizeof(ucontext_t), KM_SLEEP);
error = copyin(SCARG_P32(uap, ucp), newuc, p->p_emul->e_ucsize);
if (error)
goto fail;
/* validate the ucontext */
if ((newuc->uc_flags & _UC_CPU) == 0) {
error = EINVAL;
goto fail;
}
error = cpu_mcontext32_validate(l, &newuc->uc_mcontext);
if (error)
goto fail;
const sigset_t *sigmask = newuc->uc_flags & _UC_SIGMASK ?
&newuc->uc_sigmask : &l->l_sigmask;
error = do_lwp_create(l, newuc, SCARG(uap, flags), &l2, sigmask,
&SS_INIT);
if (error != 0)
goto fail;
error = copyout(&l2->l_lid, SCARG_P32(uap, new_lwp),
sizeof(l2->l_lid));
if (error == 0) {
lwp_start(l2, SCARG(uap, flags));
return 0;
}
lwp_exit(l2);
fail:
kmem_free(newuc, sizeof(ucontext_t));
return error;
}
int
netbsd32__lwp_wait(struct lwp *l, const struct netbsd32__lwp_wait_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) wait_for;
syscallarg(netbsd32_lwpidp) departed;
} */
struct sys__lwp_wait_args ua;
NETBSD32TO64_UAP(wait_for);
NETBSD32TOP_UAP(departed, lwpid_t);
return sys__lwp_wait(l, &ua, retval);
}
int
netbsd32__lwp_suspend(struct lwp *l, const struct netbsd32__lwp_suspend_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
} */
struct sys__lwp_suspend_args ua;
NETBSD32TO64_UAP(target);
return sys__lwp_suspend(l, &ua, retval);
}
int
netbsd32__lwp_continue(struct lwp *l, const struct netbsd32__lwp_continue_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
} */
struct sys__lwp_continue_args ua;
NETBSD32TO64_UAP(target);
return sys__lwp_continue(l, &ua, retval);
}
int
netbsd32__lwp_wakeup(struct lwp *l, const struct netbsd32__lwp_wakeup_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
} */
struct sys__lwp_wakeup_args ua;
NETBSD32TO64_UAP(target);
return sys__lwp_wakeup(l, &ua, retval);
}
int
netbsd32__lwp_setprivate(struct lwp *l, const struct netbsd32__lwp_setprivate_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_voidp) ptr;
} */
struct sys__lwp_setprivate_args ua;
NETBSD32TOP_UAP(ptr, void);
return sys__lwp_setprivate(l, &ua, retval);
}
int
netbsd32____lwp_park60(struct lwp *l,
const struct netbsd32____lwp_park60_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_clockid_t) clock_id;
syscallarg(int) flags;
syscallarg(const netbsd32_timespec50p) ts;
syscallarg(netbsd32_lwpid_t) unpark;
syscallarg(netbsd32_voidp) hint;
syscallarg(netbsd32_voidp) unparkhint;
} */
struct timespec ts, *tsp;
struct netbsd32_timespec ts32;
int ret;
int error;
if (SCARG_P32(uap, ts) == NULL)
tsp = NULL;
else {
error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
if (error != 0)
return error;
netbsd32_to_timespec(&ts32, &ts);
tsp = &ts;
}
if (SCARG(uap, unpark) != 0) {
error = lwp_unpark(&SCARG(uap, unpark), 1);
if (error != 0)
return error;
}
ret = lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp);
if (SCARG_P32(uap, ts) != NULL && (SCARG(uap, flags) & TIMER_ABSTIME) == 0) {
netbsd32_from_timespec(&ts, &ts32);
(void)copyout(&ts32, SCARG_P32(uap, ts), sizeof(ts32));
}
return ret;
}
int
netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
syscallarg(int) signo;
} */
struct sys__lwp_kill_args ua;
NETBSD32TO64_UAP(target);
NETBSD32TO64_UAP(signo);
return sys__lwp_kill(l, &ua, retval);
}
int
netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
} */
struct sys__lwp_detach_args ua;
NETBSD32TO64_UAP(target);
return sys__lwp_detach(l, &ua, retval);
}
int
netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
syscallarg(netbsd32_voidp) hint;
} */
struct sys__lwp_unpark_args ua;
NETBSD32TO64_UAP(target);
NETBSD32TOP_UAP(hint, void);
return sys__lwp_unpark(l, &ua, retval);
}
int
netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_lwpidp) targets;
syscallarg(netbsd32_size_t) ntargets;
syscallarg(netbsd32_voidp) hint;
} */
struct sys__lwp_unpark_all_args ua;
NETBSD32TOP_UAP(targets, const lwpid_t);
NETBSD32TOX_UAP(ntargets, size_t);
NETBSD32TOP_UAP(hint, void);
return sys__lwp_unpark_all(l, &ua, retval);
}
int
netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
syscallarg(const netbsd32_charp) name;
} */
struct sys__lwp_setname_args ua;
NETBSD32TO64_UAP(target);
NETBSD32TOP_UAP(name, char *);
return sys__lwp_setname(l, &ua, retval);
}
int
netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval)
{
/* {
syscallarg(lwpid_t) target;
syscallarg(netbsd32_charp) name;
syscallarg(netbsd32_size_t) len;
} */
struct sys__lwp_getname_args ua;
NETBSD32TO64_UAP(target);
NETBSD32TOP_UAP(name, char *);
NETBSD32TOX_UAP(len, size_t);
return sys__lwp_getname(l, &ua, retval);
}
int
netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) features;
syscallarg(netbsd32_pointer_t) address;
} */
netbsd32_pointer_t vaddr32;
int error, features;
vaddr_t vaddr;
features = SCARG(uap, features);
features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR);
if (features != 0)
return ENODEV;
if ((error = lwp_ctl_alloc(&vaddr)) != 0)
return error;
NETBSD32PTR32(vaddr32, (void *)vaddr);
return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32));
}
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