provided code

src/lib/syscall-nr.h

@@ -0,0 +1,34 @@
+#ifndef __LIB_SYSCALL_NR_H
+#define __LIB_SYSCALL_NR_H
+
+/* System call numbers. */
+enum 
+  {
+    /* Tasks 2 and later. */
+    SYS_HALT,                   /* Halt the operating system. */
+    SYS_EXIT,                   /* Terminate this process. */
+    SYS_EXEC,                   /* Start another process. */
+    SYS_WAIT,                   /* Wait for a child process to die. */
+    SYS_CREATE,                 /* Create a file. */
+    SYS_REMOVE,                 /* Delete a file. */
+    SYS_OPEN,                   /* Open a file. */
+    SYS_FILESIZE,               /* Obtain a file's size. */
+    SYS_READ,                   /* Read from a file. */
+    SYS_WRITE,                  /* Write to a file. */
+    SYS_SEEK,                   /* Change position in a file. */
+    SYS_TELL,                   /* Report current position in a file. */
+    SYS_CLOSE,                  /* Close a file. */
+
+    /* Task 3 and optionally task 4. */
+    SYS_MMAP,                   /* Map a file into memory. */
+    SYS_MUNMAP,                 /* Remove a memory mapping. */
+
+    /* Task 4 only. */
+    SYS_CHDIR,                  /* Change the current directory. */
+    SYS_MKDIR,                  /* Create a directory. */
+    SYS_READDIR,                /* Reads a directory entry. */
+    SYS_ISDIR,                  /* Tests if a fd represents a directory. */
+    SYS_INUMBER                 /* Returns the inode number for a fd. */
+  };
+
+#endif /* lib/syscall-nr.h */