winedos: Make UMB executable.

570eb609 · Mikołaj Zalewski · Alexandre Julliard · 13b376df · 570eb609
Commit 570eb609 authored Aug 14, 2007 by Mikołaj Zalewski Committed by Alexandre Julliard Aug 14, 2007
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himem.c dlls/winedos/himem.c +5 -0

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--- a/dlls/winedos/himem.c
+++ b/dlls/winedos/himem.c
@@ -291,4 +291,9 @@ void DOSVM_InitSegments( void )
    ptr = DOSVM_AllocDataUMB( DOSVM_RELAY_DATA_SIZE, 
                              0, &DOSVM_dpmi_segments->relay_data_sel);
    memset( ptr, 0, DOSVM_RELAY_DATA_SIZE );
+
+    /*
+     * As we store code in UMB we should make sure it is executable
+     */
+    VirtualProtect((void *)DOSVM_UMB_BOTTOM, DOSVM_UMB_TOP - DOSVM_UMB_BOTTOM, PAGE_EXECUTE_READWRITE, NULL);
 }