From fa3c96150e704a346f1a92cb52cd811514b24755 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Thu, 9 Sep 2004 22:43:12 +0000
Subject: [PATCH] Add new syscall stubs.

---
 src/lib/user/syscall.c | 31 +++++++++++++++++++++++++++++++
 src/lib/user/syscall.h | 18 ++++++++++++------
 2 files changed, 43 insertions(+), 6 deletions(-)

diff --git a/src/lib/user/syscall.c b/src/lib/user/syscall.c
index 7395a3b..efabc01 100644
--- a/src/lib/user/syscall.c
+++ b/src/lib/user/syscall.c
@@ -63,3 +63,34 @@ close (int fd)
 {
   syscall (SYS_close, fd);
 }
+
+bool
+mmap (int fd, void *addr, unsigned length)
+{
+  return syscall (SYS_mmap, fd, addr, length);
+}
+
+bool
+munmap (void *addr, unsigned length)
+{
+  return syscall (SYS_munmap, addr, length);
+}
+
+bool
+chdir (const char *dir)
+{
+  return syscall (SYS_chdir, dir);
+}
+
+bool
+mkdir (const char *dir)
+{
+  return syscall (SYS_mkdir, dir);
+}
+
+void
+lsdir (void)
+{
+  syscall (SYS_lsdir);
+}
+
diff --git a/src/lib/user/syscall.h b/src/lib/user/syscall.h
index e10d39e..a594016 100644
--- a/src/lib/user/syscall.h
+++ b/src/lib/user/syscall.h
@@ -8,13 +8,19 @@ typedef int pid_t;
 
 void halt (void) NO_RETURN;
 void exit (int status) NO_RETURN;
-pid_t exec (const char *);
+pid_t exec (const char *file);
 int join (pid_t);
-bool create (const char *);
-bool remove (const char *);
-int open (const char *);
-int read (int fd, void *, unsigned);
-int write (int fd, const void *, unsigned);
+bool create (const char *file);
+bool remove (const char *file);
+int open (const char *file);
+int filesize (int fd);
+int read (int fd, void *buffer, unsigned length);
+int write (int fd, const void *buffer, unsigned length);
 void close (int fd);
+bool mmap (int fd, void *addr, unsigned length);
+bool munmap (void *addr, unsigned length);
+bool chdir (const char *dir);
+bool mkdir (const char *dir);
+void lsdir (void);
 
 #endif /* lib/user/syscall.h */
-- 
2.30.2