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Implement the semtimedop syscall

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Signed-off-by: Andrei Vagin <avagin@gmail.com>
This commit is contained in:
Andrei Vagin
2021-01-07 11:49:40 -08:00
parent 4c5f36e7bd
commit 599a3d0fb4
2 changed files with 11 additions and 2 deletions
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pkg/sentry/syscalls/linux/linux64.go
+2 -2
View File
@@ -272,7 +272,7 @@ var AMD64 = &kernel.SyscallTable{
217: syscalls.Supported("getdents64", Getdents64),
218: syscalls.Supported("set_tid_address", SetTidAddress),
219: syscalls.Supported("restart_syscall", RestartSyscall),
220: syscalls.ErrorWithEvent("semtimedop", syserror.ENOSYS, "", []string{"gvisor.dev/issue/137"}),
220: syscalls.PartiallySupported("semtimedop", Semtimedop, "A non-zero timeout argument isn't supported.", []string{"gvisor.dev/issue/137"}),
221: syscalls.PartiallySupported("fadvise64", Fadvise64, "Not all options are supported.", nil),
222: syscalls.Supported("timer_create", TimerCreate),
223: syscalls.Supported("timer_settime", TimerSettime),
@@ -620,7 +620,7 @@ var ARM64 = &kernel.SyscallTable{
189: syscalls.ErrorWithEvent("msgsnd", syserror.ENOSYS, "", []string{"gvisor.dev/issue/135"}), // TODO(b/29354921)
190: syscalls.Supported("semget", Semget),
191: syscalls.PartiallySupported("semctl", Semctl, "Options SEM_STAT_ANY not supported.", nil),
192: syscalls.ErrorWithEvent("semtimedop", syserror.ENOSYS, "", []string{"gvisor.dev/issue/137"}),
192: syscalls.PartiallySupported("semtimedop", Semtimedop, "A non-zero timeout argument isn't supported.", []string{"gvisor.dev/issue/137"}),
193: syscalls.PartiallySupported("semop", Semop, "Option SEM_UNDO not supported.", nil),
194: syscalls.PartiallySupported("shmget", Shmget, "Option SHM_HUGETLB is not supported.", nil),
195: syscalls.PartiallySupported("shmctl", Shmctl, "Options SHM_LOCK, SHM_UNLOCK are not supported.", nil),
pkg/sentry/syscalls/linux/sys_sem.go
+9
View File
@@ -48,6 +48,15 @@ func Semget(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
return uintptr(set.ID), nil, nil
}
// Semtimedop handles: semop(int semid, struct sembuf *sops, size_t nsops, const struct timespec *timeout)
func Semtimedop(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
// TODO(gvisor.dev/issue/137): A non-zero timeout isn't supported.
if args[3].Pointer() != 0 {
return 0, nil, syserror.ENOSYS
}
return Semop(t, args)
}
// Semop handles: semop(int semid, struct sembuf *sops, size_t nsops)
func Semop(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
id := args[0].Int()