preloader: Allocate more space in low memory as well as for top-down allocations.

configure

@@ -17118,7 +17118,7 @@ echo "${ECHO_T}$ac_cv_c_dll_macho" >&6; }
 
             IOKITLIB="-framework IOKit -framework CoreFoundation"
 
-            LDEXECFLAGS="-image_base 0x7bf00000 -Wl,-segaddr,WINE_DOS,0x00000000,-segaddr,WINE_SHARED_HEAP,0x7ffe0000"
+            LDEXECFLAGS="-image_base 0x7bf00000 -Wl,-segaddr,WINE_DOS,0x00000000,-segaddr,WINE_SHARED_HEAP,0x7f000000"
 
 	    if test "$ac_cv_header_CoreAudio_CoreAudio_h" = "yes" -a "$ac_cv_header_AudioUnit_AudioUnit_h" = "yes"
             then

configure.ac

@@ -1147,7 +1147,7 @@ case $host_os in
             dnl declare needed frameworks
             AC_SUBST(COREFOUNDATIONLIB,"-framework CoreFoundation")
             AC_SUBST(IOKITLIB,"-framework IOKit -framework CoreFoundation")
-            AC_SUBST(LDEXECFLAGS,["-image_base 0x7bf00000 -Wl,-segaddr,WINE_DOS,0x00000000,-segaddr,WINE_SHARED_HEAP,0x7ffe0000"])
+            AC_SUBST(LDEXECFLAGS,["-image_base 0x7bf00000 -Wl,-segaddr,WINE_DOS,0x00000000,-segaddr,WINE_SHARED_HEAP,0x7f000000"])
 	    if test "$ac_cv_header_CoreAudio_CoreAudio_h" = "yes" -a "$ac_cv_header_AudioUnit_AudioUnit_h" = "yes"
             then
 		dnl CoreServices needed by AudioUnit

loader/main.c

@@ -24,9 +24,9 @@
 #include "main.h"
 
 #ifdef __APPLE__
-asm(".zerofill WINE_DOS, WINE_DOS, ___wine_dos, 0x20000000");
-asm(".zerofill WINE_SHARED_HEAP, WINE_SHARED_HEAP, ___wine_shared_heap, 0x01020000");
-extern char __wine_dos[0x20000000], __wine_shared_heap[0x01020000];
+asm(".zerofill WINE_DOS, WINE_DOS, ___wine_dos, 0x60000000");
+asm(".zerofill WINE_SHARED_HEAP, WINE_SHARED_HEAP, ___wine_shared_heap, 0x02000000");
+extern char __wine_dos[0x60000000], __wine_shared_heap[0x02000000];
 
 static const struct wine_preload_info wine_main_preload_info[] =
 {

loader/preloader.c

@@ -108,9 +108,9 @@
 
 static struct wine_preload_info preload_info[] =
 {
-    { (void *)0x00000000, 0x00110000 },  /* DOS area */
-    { (void *)0x7ffe0000, 0x01020000 },  /* shared user data + shared heap */
-    { (void *)0x00110000, 0x1fef0000 },  /* PE exe range (may be set with WINEPRELOADRESERVE), defaults to 512mb */
+    { (void *)0x00000000, 0x60000000 },  /* low memory area */
+    { (void *)0x7f000000, 0x02000000 },  /* top-down allocations + shared heap */
+    { 0, 0 },                            /* PE exe range set with WINEPRELOADRESERVE */
     { 0, 0 }                             /* end of list */
 };