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linux(4): Implement rt_sigtimedwait_time64 system call.

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It still does not work as intended, awaits D30675.

MFC after:	2 weeks
This commit is contained in:
Dmitry Chagin 2021-06-10 14:51:30 +03:00
parent 985978806e
commit db4a1f331b
5 changed files with 64 additions and 22 deletions
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1
sys/amd64/linux32/linux32_dummy_machdep.c
View File

@ -79,5 +79,4 @@ DUMMY(recvmmsg_time64);
DUMMY(mq_timedsend_time64);
DUMMY(mq_timedreceive_time64);
DUMMY(semtimedop_time64);
DUMMY(rt_sigtimedwait_time64);
DUMMY(sched_rr_get_interval_time64);

7
sys/amd64/linux32/syscalls.master
View File

@ -2412,7 +2412,12 @@
int linux_semtimedop_time64(void);
}
421 AUE_NULL STD {
int linux_rt_sigtimedwait_time64(void);
int linux_rt_sigtimedwait_time64(
l_sigset_t *mask,
l_siginfo_t *ptr,
struct l_timespec64 *timeout,
l_size_t sigsetsize
);
}
422 AUE_NULL STD {
int linux_sys_futex_time64(

70
sys/compat/linux/linux_signal.c
View File

@ -60,6 +60,9 @@ __FBSDID("$FreeBSD$");
static int linux_do_tkill(struct thread *td, struct thread *tdt,
ksiginfo_t *ksi);
static void sicode_to_lsicode(int si_code, int *lsi_code);
static int linux_common_rt_sigtimedwait(struct thread *,
l_sigset_t *, struct timespec *, l_siginfo_t *,
l_size_t);
static void
linux_to_bsd_sigaction(l_sigaction_t *lsa, struct sigaction *bsa)
@ -386,29 +389,14 @@ linux_rt_sigpending(struct thread *td, struct linux_rt_sigpending_args *args)
return (copyout(&lset, args->set, args->sigsetsize));
}
/*
* MPSAFE
*/
int
linux_rt_sigtimedwait(struct thread *td,
struct linux_rt_sigtimedwait_args *args)
{
int error, sig;
struct timespec ts, *tsa;
struct l_timespec lts;
l_sigset_t lset;
sigset_t bset;
l_siginfo_t lsi;
ksiginfo_t ksi;
int error;
if (args->sigsetsize != sizeof(l_sigset_t))
return (EINVAL);
if ((error = copyin(args->mask, &lset, sizeof(lset))))
return (error);
linux_to_bsd_sigset(&lset, &bset);
tsa = NULL;
if (args->timeout) {
if ((error = copyin(args->timeout, &lts, sizeof(lts))))
return (error);
@ -419,16 +407,38 @@ linux_rt_sigtimedwait(struct thread *td,
} else
tsa = NULL;
return (linux_common_rt_sigtimedwait(td, args->mask, tsa,
args->ptr, args->sigsetsize));
}
static int
linux_common_rt_sigtimedwait(struct thread *td, l_sigset_t *mask,
struct timespec *tsa, l_siginfo_t *ptr, l_size_t sigsetsize)
{
int error, sig;
l_sigset_t lset;
sigset_t bset;
l_siginfo_t lsi;
ksiginfo_t ksi;
if (sigsetsize != sizeof(l_sigset_t))
return (EINVAL);
if ((error = copyin(mask, &lset, sizeof(lset))))
return (error);
linux_to_bsd_sigset(&lset, &bset);
ksiginfo_init(&ksi);
error = kern_sigtimedwait(td, bset, &ksi, tsa);
if (error)
return (error);
sig = bsd_to_linux_signal(ksi.ksi_signo);
if (args->ptr) {
if (ptr) {
memset(&lsi, 0, sizeof(lsi));
siginfo_to_lsiginfo(&ksi.ksi_info, &lsi, sig);
error = copyout(&lsi, args->ptr, sizeof(lsi));
error = copyout(&lsi, ptr, sizeof(lsi));
}
if (error == 0)
td->td_retval[0] = sig;
@ -436,6 +446,30 @@ linux_rt_sigtimedwait(struct thread *td,
return (error);
}
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
int
linux_rt_sigtimedwait_time64(struct thread *td,
struct linux_rt_sigtimedwait_time64_args *args)
{
struct timespec ts, *tsa;
struct l_timespec64 lts;
int error;
if (args->timeout) {
if ((error = copyin(args->timeout, &lts, sizeof(lts))))
return (error);
error = linux_to_native_timespec64(&ts, &lts);
if (error != 0)
return (error);
tsa = &ts;
} else
tsa = NULL;
return (linux_common_rt_sigtimedwait(td, args->mask, tsa,
args->ptr, args->sigsetsize));
}
#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
int
linux_kill(struct thread *td, struct linux_kill_args *args)
{

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

@ -81,5 +81,4 @@ DUMMY(recvmmsg_time64);
DUMMY(mq_timedsend_time64);
DUMMY(mq_timedreceive_time64);
DUMMY(semtimedop_time64);
DUMMY(rt_sigtimedwait_time64);
DUMMY(sched_rr_get_interval_time64);

7
sys/i386/linux/syscalls.master
View File

@ -2430,7 +2430,12 @@
int linux_semtimedop_time64(void);
}
421 AUE_NULL STD {
int linux_rt_sigtimedwait_time64(void);
int linux_rt_sigtimedwait_time64(
l_sigset_t *mask,
l_siginfo_t *ptr,
struct l_timespec64 *timeout,
l_size_t sigsetsize
);
}
422 AUE_NULL STD {
int linux_sys_futex_time64(