+Index: src/threads/thread.c
diff -u src/threads/thread.c~ src/threads/thread.c
---- src/threads/thread.c~ 2005-06-02 14:35:12.000000000 -0700
-+++ src/threads/thread.c 2005-06-08 13:45:28.000000000 -0700
+--- src/threads/thread.c~
++++ src/threads/thread.c
@@ -13,6 +13,7 @@
#include "threads/synch.h"
#ifdef USERPROG
t->magic = THREAD_MAGIC;
}
+Index: src/threads/thread.h
diff -u src/threads/thread.h~ src/threads/thread.h
---- src/threads/thread.h~ 2005-06-02 14:32:36.000000000 -0700
-+++ src/threads/thread.h 2005-06-08 13:47:09.000000000 -0700
+--- src/threads/thread.h~
++++ src/threads/thread.h
@@ -4,6 +4,7 @@
#include <debug.h>
#include <list.h>
void thread_init (void);
void thread_start (void);
void thread_tick (void);
+Index: src/userprog/exception.c
diff -u src/userprog/exception.c~ src/userprog/exception.c
---- src/userprog/exception.c~ 2005-01-01 18:09:59.000000000 -0800
-+++ src/userprog/exception.c 2005-06-08 13:45:28.000000000 -0700
+--- src/userprog/exception.c~
++++ src/userprog/exception.c
@@ -150,6 +150,14 @@ page_fault (struct intr_frame *f)
write = (f->error_code & PF_W) != 0;
user = (f->error_code & PF_U) != 0;
/* To implement virtual memory, delete the rest of the function
body, and replace it with code that brings in the page to
which fault_addr refers. */
+Index: src/userprog/process.c
diff -u src/userprog/process.c~ src/userprog/process.c
---- src/userprog/process.c~ 2005-05-26 13:19:48.000000000 -0700
-+++ src/userprog/process.c 2005-06-08 13:49:13.000000000 -0700
+--- src/userprog/process.c~
++++ src/userprog/process.c
@@ -14,11 +14,23 @@
#include "threads/init.h"
#include "threads/interrupt.h"
+ thread. */
+struct exec_info
+ {
-+ const char *filename; /* Program to load. */
++ const char *file_name; /* Program to load. */
+ struct semaphore load_done; /* "Up"ed when loading complete. */
+ struct wait_status *wait_status; /* Child process. */
+ bool success; /* Program successfully loaded? */
+ };
/* Starts a new thread running a user program loaded from
- FILENAME. The new thread may be scheduled (and may even exit)
+ FILE_NAME. The new thread may be scheduled (and may even exit)
@@ -27,29 +39,37 @@ static bool load (const char *cmdline, v
tid_t
- process_execute (const char *filename)
+ process_execute (const char *file_name)
{
- char *fn_copy;
+ struct exec_info exec;
+ char *save_ptr;
tid_t tid;
-- /* Make a copy of FILENAME.
+- /* Make a copy of FILE_NAME.
- Otherwise there's a race between the caller and load(). */
- fn_copy = palloc_get_page (0);
- if (fn_copy == NULL)
- return TID_ERROR;
-- strlcpy (fn_copy, filename, PGSIZE);
+- strlcpy (fn_copy, file_name, PGSIZE);
+ /* Initialize exec_info. */
-+ exec.filename = filename;
++ exec.file_name = file_name;
+ sema_init (&exec.load_done, 0);
- /* Create a new thread to execute FILENAME. */
-- tid = thread_create (filename, PRI_DEFAULT, execute_thread, fn_copy);
+ /* Create a new thread to execute FILE_NAME. */
+- tid = thread_create (file_name, PRI_DEFAULT, execute_thread, fn_copy);
- if (tid == TID_ERROR)
- palloc_free_page (fn_copy);
-+ strlcpy (thread_name, filename, sizeof thread_name);
++ strlcpy (thread_name, file_name, sizeof thread_name);
+ strtok_r (thread_name, " ", &save_ptr);
+ tid = thread_create (thread_name, PRI_DEFAULT, execute_thread, &exec);
+ if (tid != TID_ERROR)
/* A thread function that loads a user process and starts it
running. */
static void
--execute_thread (void *filename_)
+-execute_thread (void *file_name_)
+execute_thread (void *exec_)
{
-- char *filename = filename_;
+- char *file_name = file_name_;
+ struct exec_info *exec = exec_;
struct intr_frame if_;
bool success;
-@@ -58,10 +78,28 @@ execute_thread (void *filename_)
+@@ -58,10 +78,28 @@ execute_thread (void *file_name_)
if_.gs = if_.fs = if_.es = if_.ds = if_.ss = SEL_UDSEG;
if_.cs = SEL_UCSEG;
if_.eflags = FLAG_IF | FLAG_MBS;
-- success = load (filename, &if_.eip, &if_.esp);
-+ success = load (exec->filename, &if_.eip, &if_.esp);
+- success = load (file_name, &if_.eip, &if_.esp);
++ success = load (exec->file_name, &if_.eip, &if_.esp);
+
+ /* Allocate wait_status. */
+ if (success)
+ }
- /* If load failed, quit. */
-- palloc_free_page (filename);
+- palloc_free_page (file_name);
+ /* Initialize wait_status. */
+ if (success)
+ {
if (!success)
thread_exit ();
-@@ -75,18 +113,47 @@ execute_thread (void *filename_)
+@@ -75,18 +113,47 @@ execute_thread (void *file_name_)
NOT_REACHED ();
}
and its initial stack pointer into *ESP.
Returns true if successful, false otherwise. */
bool
--load (const char *filename, void (**eip) (void), void **esp)
+-load (const char *file_name, void (**eip) (void), void **esp)
+load (const char *cmd_line, void (**eip) (void), void **esp)
{
struct thread *t = thread_current ();
-+ char filename[NAME_MAX + 2];
++ char file_name[NAME_MAX + 2];
struct Elf32_Ehdr ehdr;
struct file *file = NULL;
off_t file_ofs;
int i;
/* Allocate and activate page directory. */
-@@ -224,13 +317,22 @@ load (const char *filename, void (**eip)
+@@ -224,13 +317,22 @@ load (const char *file_name, void (**eip)
goto done;
process_activate ();
-+ /* Extract filename from command line. */
++ /* Extract file_name from command line. */
+ while (*cmd_line == ' ')
+ cmd_line++;
-+ strlcpy (filename, cmd_line, sizeof filename);
-+ cp = strchr (filename, ' ');
++ strlcpy (file_name, cmd_line, sizeof file_name);
++ cp = strchr (file_name, ' ');
+ if (cp != NULL)
+ *cp = '\0';
+
/* Open executable file. */
-- file = filesys_open (filename);
-+ t->bin_file = file = filesys_open (filename);
+- file = filesys_open (file_name);
++ t->bin_file = file = filesys_open (file_name);
if (file == NULL)
{
- printf ("load: %s: open failed\n", filename);
+ printf ("load: %s: open failed\n", file_name);
goto done;
}
+ file_deny_write (file);
/* Read and verify executable header. */
if (file_read (file, &ehdr, sizeof ehdr) != sizeof ehdr
-@@ -284,7 +386,7 @@ load (const char *filename, void (**eip)
+@@ -284,7 +386,7 @@ load (const char *file_name, void (**eip)
}
/* Set up stack. */
goto done;
/* Start address. */
-@@ -294,7 +396,6 @@ load (const char *filename, void (**eip)
+@@ -294,7 +396,6 @@ load (const char *file_name, void (**eip)
done:
/* We arrive here whether the load is successful or not. */
else
palloc_free_page (kpage);
}
+Index: src/userprog/syscall.c
diff -u src/userprog/syscall.c~ src/userprog/syscall.c
---- src/userprog/syscall.c~ 2004-09-26 14:15:17.000000000 -0700
-+++ src/userprog/syscall.c 2005-06-08 13:45:28.000000000 -0700
-@@ -1,20 +1,480 @@
+--- src/userprog/syscall.c~
++++ src/userprog/syscall.c
+@@ -1,20 +1,482 @@
#include "userprog/syscall.h"
#include <stdio.h>
+#include <string.h>
#include <syscall-nr.h>
+#include "userprog/process.h"
+#include "userprog/pagedir.h"
-+#include "devices/kbd.h"
++#include "devices/input.h"
+#include "filesys/filesys.h"
+#include "filesys/file.h"
+#include "threads/init.h"
+ if (handle == STDIN_FILENO)
+ {
+ for (bytes_read = 0; (size_t) bytes_read < size; bytes_read++)
-+ if (udst >= (uint8_t *) PHYS_BASE || !put_user (udst++, kbd_getc ()))
++ if (udst >= (uint8_t *) PHYS_BASE || !put_user (udst++, input_getc ()))
+ thread_exit ();
+ return bytes_read;
+ }
+ struct file_descriptor *fd;
+ fd = list_entry (e, struct file_descriptor, elem);
+ next = list_next (e);
++ lock_acquire (&fs_lock);
+ file_close (fd->file);
++ lock_release (&fs_lock);
+ free (fd);
+ }
+}
+Index: src/userprog/syscall.h
diff -u src/userprog/syscall.h~ src/userprog/syscall.h
---- src/userprog/syscall.h~ 2004-09-05 22:38:45.000000000 -0700
-+++ src/userprog/syscall.h 2005-06-08 13:45:28.000000000 -0700
+--- src/userprog/syscall.h~
++++ src/userprog/syscall.h
@@ -2,5 +2,6 @@
#define USERPROG_SYSCALL_H
projects / pintos-anon / blobdiff