diff options
Diffstat (limited to 'sys/compat/cloudabi64/cloudabi64_thread.c')
| -rw-r--r-- | sys/compat/cloudabi64/cloudabi64_thread.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/compat/cloudabi64/cloudabi64_thread.c b/sys/compat/cloudabi64/cloudabi64_thread.c index 51961f8..429ad33 100644 --- a/sys/compat/cloudabi64/cloudabi64_thread.c +++ b/sys/compat/cloudabi64/cloudabi64_thread.c @@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$"); struct thread_create_args { cloudabi64_threadattr_t attr; + uint64_t tcb; lwpid_t tid; }; @@ -49,8 +50,7 @@ initialize_thread(struct thread *td, void *thunk) args->tid = td->td_tid; /* Set up initial register contents. */ - cloudabi64_thread_setregs(td, &args->attr); - return (0); + return (cloudabi64_thread_setregs(td, &args->attr, args->tcb)); } int @@ -63,6 +63,12 @@ cloudabi64_sys_thread_create(struct thread *td, error = copyin(uap->attr, &args.attr, sizeof(args.attr)); if (error != 0) return (error); + + /* Remove some space on the top of the stack for the TCB. */ + args.tcb = rounddown(args.attr.stack + args.attr.stack_size - + sizeof(cloudabi64_tcb_t), _Alignof(cloudabi64_tcb_t)); + args.attr.stack_size = args.tcb - args.attr.stack; + error = thread_create(td, NULL, initialize_thread, &args); if (error != 0) return (error); |
