Changeset 60291 in vbox for trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintStr.c

Timestamp:

Apr 1, 2016 8:51:29 PM (9 years ago)

Author:

vboxsync

Message:

bs3kit: A bunch of changes to be able to test the effects of a GDT page being read-only or not-present.

• Extended the GDT so we get a whole page to play paging tricks with.
• Added syscall for restoring a context from ring-0 so we can safely get out of bogus test context that aren't in ring-0 (non-standard CS value causing trouble here). Implemented the string print syscall since the restore syscall forced me to sort out pointers.
• Changed most string printers to do more than one char at a time (usually a line) to save context switches (screen priting is done via INT 10h in real mode).
• Test the CS access bit handling during INT XXh.

File:

• trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintStr.c (modified) (2 diffs)

trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintStr.c

@@ -5 +5 @@
 
 /*
- * Copyright (C) 2007-2015 Oracle Corporation
+ * Copyright (C) 2007-2016 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -27 +27 @@
 #include "bs3kit-template-header.h"
 
-#undef Bs3PrintStr
-BS3_DECL(void) BS3_CMN_NM(Bs3PrintStr)(const char BS3_FAR *pszString)
+BS3_DECL(void) Bs3PrintStr(const char BS3_FAR *pszString)
 {
-    char ch;
-    while ((ch = *pszString++) != '\0')
-        Bs3PrintChr(ch);
+    Bs3PrintStrN(pszString, Bs3StrLen(pszString));
 }