Attempting to pass command-line arguments before they've been

[pintos-anon] / doc / userprog.texi

diff --git a/doc/userprog.texi b/doc/userprog.texi
index b7d356ff0790b13b639ea1072429decc78e324dc..880fe46f74ffc4e26139f59f9f4428391247eca3 100644 (file)
--- a/doc/userprog.texi
+++ b/doc/userprog.texi
@@ -468,6 +468,11 @@ in @func{setup_stack}.  That will work for any test program that doesn't
 examine its arguments, although its name will be printed as
 @code{(null)}.
 
+Until you implement argument passing, you should only run programs
+without passing command-line arguments.  Attempting to pass arguments to
+a program will include those arguments in the name of the program, which
+will probably fail.
+
 @item
 User memory access (@pxref{Accessing User Memory}).  All system calls
 need to read user memory.  Few system calls need to write to user
@@ -799,6 +804,12 @@ Here's a summary of our reference solution, produced by the
 @command{diffstat} program.  The final row gives total lines inserted
 and deleted; a changed line counts as both an insertion and a deletion.
 
+The reference solution represents just one possible solution.  Many
+other solutions are also possible and many of those differ greatly from
+the reference solution.  Some excellent solutions may not modify all the
+files modified by the reference solution, and some may modify files not
+modified by the reference solution.
+
 @verbatim
  threads/thread.c     |   13 
  threads/thread.h     |   26 +