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linux(4): Implement ppoll_time64 system call.

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MFC after:	2 weeks
This commit is contained in:
Dmitry Chagin 2021-06-10 15:18:46 +03:00
parent e884512ad1
commit ed61e0ce1d
5 changed files with 93 additions and 35 deletions
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1
sys/amd64/linux32/linux32_dummy_machdep.c
View File

@ -72,7 +72,6 @@ DUMMY(timer_gettime64);
DUMMY(timer_settime64);
DUMMY(timerfd_gettime64);
DUMMY(timerfd_settime64);
DUMMY(ppoll_time64);
DUMMY(io_pgetevents_time64);
DUMMY(recvmmsg_time64);
DUMMY(mq_timedsend_time64);

8
sys/amd64/linux32/syscalls.master
View File

@ -2400,7 +2400,13 @@
);
}
414 AUE_NULL STD {
int linux_ppoll_time64(void);
int linux_ppoll_time64(
struct pollfd *fds,
uint32_t nfds,
struct l_timespec *tsp,
l_sigset_t *sset,
l_size_t ssize
);
}
415 AUE_NULL UNIMPL nosys
416 AUE_NULL STD {

110
sys/compat/linux/linux_misc.c
View File

@ -141,6 +141,9 @@ static int linux_common_utimensat(struct thread *, int,
static int linux_common_pselect6(struct thread *, l_int,
l_fd_set *, l_fd_set *, l_fd_set *,
struct timespec *, l_uintptr_t *);
static int linux_common_ppoll(struct thread *, struct pollfd *,
uint32_t, struct timespec *, l_sigset_t *,
l_size_t);
int
linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
@ -2484,24 +2487,10 @@ linux_pselect6_time64(struct thread *td,
int
linux_ppoll(struct thread *td, struct linux_ppoll_args *args)
{
struct timespec ts0, ts1;
struct l_timespec lts;
struct timespec uts, *tsp;
l_sigset_t l_ss;
sigset_t *ssp;
sigset_t ss;
struct l_timespec lts;
int error;
if (args->sset != NULL) {
if (args->ssize != sizeof(l_ss))
return (EINVAL);
error = copyin(args->sset, &l_ss, sizeof(l_ss));
if (error)
return (error);
linux_to_bsd_sigset(&l_ss, &ss);
ssp = &ss;
} else
ssp = NULL;
if (args->tsp != NULL) {
error = copyin(args->tsp, &lts, sizeof(lts));
if (error)
@ -2509,32 +2498,91 @@ linux_ppoll(struct thread *td, struct linux_ppoll_args *args)
error = linux_to_native_timespec(&uts, &lts);
if (error != 0)
return (error);
nanotime(&ts0);
tsp = &uts;
} else
tsp = NULL;
error = kern_poll(td, args->fds, args->nfds, tsp, ssp);
if (error == 0 && args->tsp != NULL) {
if (td->td_retval[0]) {
nanotime(&ts1);
timespecsub(&ts1, &ts0, &ts1);
timespecsub(&uts, &ts1, &uts);
if (uts.tv_sec < 0)
timespecclear(&uts);
} else
timespecclear(&uts);
error = native_to_linux_timespec(&lts, &uts);
error = linux_common_ppoll(td, args->fds, args->nfds, tsp,
args->sset, args->ssize);
if (error != 0)
return (error);
if (tsp != NULL) {
error = native_to_linux_timespec(&lts, tsp);
if (error == 0)
error = copyout(&lts, args->tsp, sizeof(lts));
}
return (error);
}
static int
linux_common_ppoll(struct thread *td, struct pollfd *fds, uint32_t nfds,
struct timespec *tsp, l_sigset_t *sset, l_size_t ssize)
{
struct timespec ts0, ts1;
l_sigset_t l_ss;
sigset_t *ssp;
sigset_t ss;
int error;
if (sset != NULL) {
if (ssize != sizeof(l_ss))
return (EINVAL);
error = copyin(sset, &l_ss, sizeof(l_ss));
if (error)
return (error);
linux_to_bsd_sigset(&l_ss, &ss);
ssp = &ss;
} else
ssp = NULL;
if (tsp != NULL)
nanotime(&ts0);
error = kern_poll(td, fds, nfds, tsp, ssp);
if (error == 0 && tsp != NULL) {
if (td->td_retval[0]) {
nanotime(&ts1);
timespecsub(&ts1, &ts0, &ts1);
timespecsub(tsp, &ts1, tsp);
if (tsp->tv_sec < 0)
timespecclear(tsp);
} else
timespecclear(tsp);
}
return (error);
}
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
int
linux_ppoll_time64(struct thread *td, struct linux_ppoll_time64_args *args)
{
struct timespec uts, *tsp;
struct l_timespec64 lts;
int error;
if (args->tsp != NULL) {
error = copyin(args->tsp, &lts, sizeof(lts));
if (error != 0)
return (error);
error = linux_to_native_timespec64(&uts, &lts);
if (error != 0)
return (error);
tsp = &uts;
} else
tsp = NULL;
error = linux_common_ppoll(td, args->fds, args->nfds, tsp,
args->sset, args->ssize);
if (error != 0)
return (error);
if (tsp != NULL) {
error = native_to_linux_timespec64(&lts, tsp);
if (error == 0)
error = copyout(&lts, args->tsp, sizeof(lts));
}
return (error);
}
#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
int
linux_sched_rr_get_interval(struct thread *td,
struct linux_sched_rr_get_interval_args *uap)

1
sys/i386/linux/linux_dummy_machdep.c
View File

@ -74,7 +74,6 @@ DUMMY(timer_gettime64);
DUMMY(timer_settime64);
DUMMY(timerfd_gettime64);
DUMMY(timerfd_settime64);
DUMMY(ppoll_time64);
DUMMY(io_pgetevents_time64);
DUMMY(recvmmsg_time64);
DUMMY(mq_timedsend_time64);

8
sys/i386/linux/syscalls.master
View File

@ -2418,7 +2418,13 @@
);
}
414 AUE_NULL STD {
int linux_ppoll_time64(void);
int linux_ppoll_time64(
struct pollfd *fds,
uint32_t nfds,
struct l_timespec64 *tsp,
l_sigset_t *sset,
l_size_t ssize
);
}
415 AUE_NULL UNIMPL nosys
416 AUE_NULL STD {