Implement the exec system call through process_execute, w/ E

2024-11-08 14:41:27 +00:00
parent dca9d8f5a3
commit b112824a64
1 changed files with 8 additions and 3 deletions
--- a/src/userprog/syscall.c
+++ b/src/userprog/syscall.c
@@ -116,10 +116,15 @@ syscall_exit (int status)
 }

 static pid_t
-syscall_exec (const char *cmd_line UNUSED)
+syscall_exec (const char *cmd_line)
 {
-  //TODO
-  return 0;
+  validate_user_pointer (cmd_line, 1);
+
+  lock_acquire (&filesys_lock);
+  pid_t pid = process_execute(cmd_line);
+  lock_release (&filesys_lock);
+
+  return pid;
 }

 static int