ntdll: Don't release address space on 64-bit macOS.

c1958ddc · Brendan Shanks · Alexandre Julliard · 900dfca3 · c1958ddc
Commit c1958ddc authored Jun 19, 2023 by Brendan Shanks Committed by Alexandre Julliard Jul 18, 2023
Hide whitespace changes
Inline Side-by-side

Showing with 7 additions and 0 deletions

virtual.c dlls/ntdll/unix/virtual.c +7 -0

No files found.
--- a/dlls/ntdll/unix/virtual.c
+++ b/dlls/ntdll/unix/virtual.c
@@ -4128,6 +4128,13 @@ static void virtual_release_address_space(void)
    char *base = (char *)0x82000000;
    char *limit = get_wow_user_space_limit();

+#if defined(__APPLE__) && !defined(__i386__)
+    /* On 64-bit macOS, don't release any address space.
+     * It needs to be reserved for use by Wow64
+     */
+    return;
+#endif
+
    if (limit > (char *)0xfffff000) return;  /* 64-bit limit, nothing to do */

    if (limit > base)