Prepare for user memory management and usermode code

1 files changed, 12 insertions, 5 deletions

diff --git a/src/kernel/core/thread.c b/src/kernel/core/thread.c
index 3f25add..9d11da2 100644
--- a/src/kernel/core/thread.c
+++ b/src/kernel/core/thread.c
@@ -107,10 +107,7 @@ static void run_thread(void (*entry)(void*), void* data) {
 	asm volatile("sti");
 	entry(data);
 
-	current_thread->state = T_STATE_FINISHED;
-	// TODO : add job for deleting the thread, or whatever
-	yield();	// expected never to return!
-	ASSERT(false);
+	exit();
 }
 thread_t *new_thread(entry_t entry, void* data) {
 	thread_t *t = (thread_t*)malloc(sizeof(thread_t));
@@ -147,7 +144,10 @@ thread_t *new_thread(entry_t entry, void* data) {
 
 	t->current_pd_d = get_kernel_pagedir();
 
-	t->proc = 0;	// used by L1 functions
+	// used by user processes
+	t->proc = 0;
+	t->usermem_pf_handler = 0;
+	t->kmem_violation_handler = 0;
 
 	return t;
 }
@@ -196,6 +196,13 @@ void pause() {
 	resume_interrupts(st);
 }
 
+void exit() {
+	current_thread->state = T_STATE_FINISHED;
+	// TODO : add job for deleting the thread, or whatever
+	yield();	// expected never to return!
+	ASSERT(false);
+}
+
 void resume_thread(thread_t *thread, bool run_at_once) {
 	bool st = disable_interrupts();