From abd273ce0a9ae9267f8b0a144ea9b56d8912f9b5 Mon Sep 17 00:00:00 2001
From: manuel <manuel@mausz.at>
Date: Tue, 19 Jun 2012 23:31:28 +0200
Subject: add dynamic stack growing

---
 userprog/process.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'userprog/process.h')

diff --git a/userprog/process.h b/userprog/process.h
index b7bca5d..ccb94cb 100644
--- a/userprog/process.h
+++ b/userprog/process.h
@@ -3,6 +3,8 @@
 
 #include "threads/thread.h"
 
+#define STACK_SIZE (1 << 23) /* 8MB maxiumum stack size */
+
 /* In the current implementation, the capacity is fixed to 1024 (PGSIZE/4) */
 struct fd_table {
     struct file** fds;
@@ -37,6 +39,7 @@ tid_t process_execute (const char *file_name);
 int process_wait (tid_t);
 void process_exit (void);
 void process_activate (void);
+bool process_grow_stack (void *upage);
 bool process_install_page (void *upage, void *kpage, bool writable);
 
 int process_open_file(const char* fname);
-- 
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