Fix comment.

[pintos-anon] / src / tests / tests.pm

diff --git a/src/tests/tests.pm b/src/tests/tests.pm
index 74b69054936205970c150197bcfd1f023f45f79a..e8cb4230af8d4639f7f06e4bfe4ae398e53deb6b 100644 (file)
--- a/src/tests/tests.pm
+++ b/src/tests/tests.pm
@@ -112,6 +112,8 @@ sub check_for_triple_fault {
     print <<EOF;
 \u$run spontaneously rebooted $reboots times.
 This is most often caused by unhandled page faults.
+Read the Triple Faults section in the Debugging chapter
+of the Pintos manual for more information.
 EOF
 
     fail;
@@ -149,10 +151,22 @@ sub compare_output {
     my (@output) = get_core_output ($run, @$output);
     fail "\u$run didn't produce any output" if !@output;
 
-    if (exists $options{IGNORE_EXIT_CODES}) {
+    my $ignore_exit_codes = exists $options{IGNORE_EXIT_CODES};
+    if ($ignore_exit_codes) {
        delete $options{IGNORE_EXIT_CODES};
        @output = grep (!/^[a-zA-Z0-9-_]+: exit\(\d+\)$/, @output);
     }
+    my $ignore_user_faults = exists $options{IGNORE_USER_FAULTS};
+    if ($ignore_user_faults) {
+       delete $options{IGNORE_USER_FAULTS};
+       @output = grep (!/^Page fault at.*in user context\.$/
+                       && !/: dying due to interrupt 0x0e \(.*\).$/
+                       && !/^Interrupt 0x0e \(.*\) at eip=/
+                       && !/^ cr2=.* error=.*/
+                       && !/^ eax=.* ebx=.* ecx=.* edx=.*/
+                       && !/^ esi=.* edi=.* esp=.* ebp=.*/
+                       && !/^ cs=.* ds=.* es=.* ss=.*/, @output);
+    }
     die "unknown option " . (keys (%options))[0] . "\n" if %options;
 
     my ($msg);
@@ -196,6 +210,10 @@ sub compare_output {
     }
 
     # Failed to match.  Report failure.
+    $msg .= "\n(Process exit codes are excluded for matching purposes.)\n"
+      if $ignore_exit_codes;
+    $msg .= "\n(User fault messages are excluded for matching purposes.)\n"
+      if $ignore_user_faults;
     fail "Test output failed to match any acceptable form.\n\n$msg";
 }
 \f