struct linux_clone_args - arguments for the clone3 syscall
@flags: Flags for the new process as listed above.
All flags are valid except for LINUX_CSIGNAL and
LINUX_CLONE_DETACHED.
@pidfd: If LINUX_CLONE_PIDFD is set, a pidfd will be
returned in this argument.
@child_tid: If LINUX_CLONE_CHILD_SETTID is set, the TID of the
child process will be returned in the child’s
memory.
@parent_tid: If LINUX_CLONE_PARENT_SETTID is set, the TID of
the child process will be returned in the
parent’s memory.
@exit_signal: The exit_signal the parent process will be
sent when the child exits.
@stack: Specify the location of the stack for the
child process.
Note, @stack is expected to point to the
lowest address. The stack direction will be
determined by the kernel and set up
appropriately based on @stack_size.
@stack_size: The size of the stack for the child process.
@tls: If LINUX_CLONE_SETTLS is set, the tls descriptor
is set to tls.
@set_tid: Pointer to an array of type *pid_t. The size
of the array is defined using @set_tid_size.
This array is used to select PIDs/TIDs for
newly created processes. The first element in
this defines the PID in the most nested PID
namespace. Each additional element in the array
defines the PID in the parent PID namespace of
the original PID namespace. If the array has
less entries than the number of currently
nested PID namespaces only the PIDs in the
corresponding namespaces are set.
@set_tid_size: This defines the size of the array referenced
in @set_tid. This cannot be larger than the
kernel’s limit of nested PID namespaces.
@cgroup: If LINUX_CLONE_INTO_CGROUP is specified set this to
a file descriptor for the cgroup.