Changeset 3363 in vbox

Timestamp:

Jul 2, 2007 10:58:49 PM (18 years ago)

Author:

vboxsync

Message:

fixed access to sup page from RING0 with GNUC

File:

• trunk/include/VBox/sup.h (modified) (1 diff)

trunk/include/VBox/sup.h

@@ -214 +214 @@
 }
 #  define g_pSUPGlobalInfoPage         (SUPGetGIP())
+# elif defined(__GNUC__) && !defined(__DARWIN__)
+/** gcc optimizes &g_SUPGlobalInfoPage + offset */
+DECLINLINE(PCSUPGLOBALINFOPAGE) SUPGetGIP(void)
+{
+    PCSUPGLOBALINFOPAGE pGIP;
+    __asm__ __volatile__ ("movl $g_SUPGlobalInfoPage,%0\n\t"
+                          : "=a" (pGIP));
+    return pGIP;
+}
+#  define g_pSUPGlobalInfoPage         (SUPGetGIP())
 # else
 #  define g_pSUPGlobalInfoPage         (&g_SUPGlobalInfoPage)
-#endif
+# endif
 #else
 extern DECLIMPORT(PCSUPGLOBALINFOPAGE)  g_pSUPGlobalInfoPage;