diff options
| author | Andrei Vagin <avagin@gmail.com> | 2021-01-07 11:17:43 -0800 |
|---|---|---|
| committer | Andrei Vagin <avagin@gmail.com> | 2021-01-07 11:49:40 -0800 |
| commit | 599a3d0fb4cabbe6c56f4ac34dc9381eee365f52 (patch) | |
| tree | 0168f0b3c422a32a9b1079db0926f7d0fa90c426 | |
| parent | 4c5f36e7bd4781fc9984ef4fdf98009b5ec4cb4c (diff) | |
Implement the semtimedop syscall
Signed-off-by: Andrei Vagin <avagin@gmail.com>
| -rw-r--r-- | pkg/sentry/syscalls/linux/linux64.go | 4 | ||||
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_sem.go | 9 |
2 files changed, 11 insertions, 2 deletions
diff --git a/pkg/sentry/syscalls/linux/linux64.go b/pkg/sentry/syscalls/linux/linux64.go index b815e498f..a72df62f6 100644 --- a/pkg/sentry/syscalls/linux/linux64.go +++ b/pkg/sentry/syscalls/linux/linux64.go @@ -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), diff --git a/pkg/sentry/syscalls/linux/sys_sem.go b/pkg/sentry/syscalls/linux/sys_sem.go index 1166cd7bb..d324461a3 100644 --- a/pkg/sentry/syscalls/linux/sys_sem.go +++ b/pkg/sentry/syscalls/linux/sys_sem.go @@ -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() |