2 * Copyright (c) 2015 Nuxi, https://nuxi.nl/
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26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/param.h>
31 #include <sys/systm.h>
33 #include <contrib/cloudabi/cloudabi64_types.h>
35 #include <compat/cloudabi64/cloudabi64_proto.h>
36 #include <compat/cloudabi64/cloudabi64_util.h>
38 struct thread_create_args {
39 cloudabi64_threadattr_t attr;
45 initialize_thread(struct thread *td, void *thunk)
47 struct thread_create_args *args = thunk;
49 /* Save the thread ID, so it can be returned. */
50 args->tid = td->td_tid;
52 /* Set up initial register contents. */
53 return (cloudabi64_thread_setregs(td, &args->attr, args->tcb));
57 cloudabi64_sys_thread_create(struct thread *td,
58 struct cloudabi64_sys_thread_create_args *uap)
60 struct thread_create_args args;
63 error = copyin(uap->attr, &args.attr, sizeof(args.attr));
67 /* Remove some space on the top of the stack for the TCB. */
68 args.tcb = rounddown(args.attr.stack + args.attr.stack_len -
69 sizeof(cloudabi64_tcb_t), _Alignof(cloudabi64_tcb_t));
70 args.attr.stack_len = args.tcb - args.attr.stack;
72 error = thread_create(td, NULL, initialize_thread, &args);
75 td->td_retval[0] = args.tid;