diff options
Diffstat (limited to 'src/uapi/proc.c')
| -rw-r--r-- | src/uapi/proc.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/src/uapi/proc.c b/src/uapi/proc.c index 4b6865c..52511f9 100644 --- a/src/uapi/proc.c +++ b/src/uapi/proc.c @@ -46,18 +46,12 @@ SYSCALL_DEFINE5(create)(struct tcb *t, sys_arg_t func, if (!n) return_args1(t, ERR_OOMEM); - /* temporarily jump into new thread memory to set arguments */ - use_vmem(n->rpc.vmem); - /* this visit is likely not the cheapest thing in the universe, are * there ways to speed up thread creation? */ set_thread(n); set_ret5(n, n->tid, d0, d1, d2, d3); set_return(n, func); - /* return back */ - use_vmem(t->rpc.vmem); - n->notify_id = t->notify_id; return_args1(t, n->tid); } @@ -91,13 +85,9 @@ SYSCALL_DEFINE0(fork)(struct tcb *t) if (!n) return_args1(t, ERR_OOMEM); - /* again, probably not fantastic that we're jumping between address - * spaces like this */ - use_vmem(n->rpc.vmem); /* prepare args for when we eventually swap to the new proc, giving * parent ID as third return value */ set_args2(n, 0, get_eproc(t)->pid); - use_vmem(t->rpc.vmem); n->notify_id = c->notify_id; return_args1(t, n->pid); @@ -180,12 +170,9 @@ SYSCALL_DEFINE2(spawn)(struct tcb *t, sys_arg_t bin, sys_arg_t interp) /** @todo should permissions be transferred? Probably, not but now there * is a slightly annoying asymmetry between fork+exec vs spawn... */ - /* temporarily switch to new thread to manipulate stack */ - use_vmem(n->rpc.vmem); set_thread(n); set_return(n, n->callback); set_ret4(n, 0, n->tid, SYS_USER_SPAWNED, n->pid); - use_vmem(t->rpc.vmem); return_args1(t, n->pid); } |