| Call clone_with_pids as follows:
|
| pid_t pids[] = { 0, 77, 99 };
| struct target_pid_set pid_set;
|
| pid_set.num_pids = sizeof(pids) / sizeof(int);
| pid_set.target_pids = &pids;
|
| syscall(__NR_clone_with_pids, flags, stack, NULL, NULL, NULL, &pid_set);
Now that we need to do a copy_from_user() anyway, is it worth collapsing
one or more parameters into a structure ?
struct clone_with_pid_args {
u64 flags;
void *stack;
void *tls;
struct target_pid_set *pid_set;
};
struct clone_tid_info {
int *parent_tidptr;
int *child_tidptr;
}
struct clone_with_pid_args cwp_args;
struct clone_tid_info ctid_inf;
...
syscall(__NR_clone_with_pids, &cwp_args, &ctid_info);
One advantage would be that it would make room for 64 bit clone flags, so we
won't need a new flavor of clone_with_pids() when clone_flags is extended.
Sukadev
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