From b491ec2ace37fa562b6e979e664844e1db244e1d Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Wed, 1 Apr 2015 14:01:14 +0200
Subject: XXX pmm from x15, userspace crashes soon

---
 kern/thread.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'kern/thread.c')

diff --git a/kern/thread.c b/kern/thread.c
index 6137a33..e46035f 100644
--- a/kern/thread.c
+++ b/kern/thread.c
@@ -123,6 +123,15 @@ decl_simple_lock_data(, stack_lock_data)/* splsched only */
  */
 static struct kmem_cache stack_cache;
 
+vm_offset_t
+thread_bootstrap_stack_alloc(void)
+{
+	vm_offset_t stack;
+	stack = kmem_cache_alloc(&stack_cache);
+	assert ((stack & (KERNEL_STACK_SIZE-1)) == 0);
+	return stack;
+}
+
 /*
  *	stack_alloc_try:
  *
@@ -220,7 +229,7 @@ void stack_privilege(
 		thread->stack_privilege = current_stack();
 }
 
-void thread_init(void)
+void thread_bootstrap(void)
 {
 	kmem_cache_init(&thread_cache, "thread", sizeof(struct thread), 0,
 			NULL, 0);
@@ -233,7 +242,10 @@ void thread_init(void)
 	kmem_cache_init(&stack_cache, "stack",
 			KERNEL_STACK_SIZE, KERNEL_STACK_SIZE,
 			NULL, 0);
+}
 
+void thread_init(void)
+{
 	/*
 	 *	Fill in a template thread for fast initialization.
 	 *	[Fields that must be (or are typically) reset at
-- 
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