tcg: Split out exec/user/guest-base.h

TCG will need this declaration, without all of the other
bits that come with cpu-all.h.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec/cpu-all.h

@@ -84,11 +84,8 @@
 
 #if defined(CONFIG_USER_ONLY)
 #include "exec/user/abitypes.h"
+#include "exec/user/guest-base.h"
 
-/* On some host systems the guest address space is reserved on the host.
- * This allows the guest address space to be offset to a convenient location.
- */
-extern uintptr_t guest_base;
 extern bool have_guest_base;
 
 /*

include/exec/user/guest-base.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Declaration of guest_base.
+ *  Copyright (c) 2003 Fabrice Bellard
+ */
+
+#ifndef EXEC_USER_GUEST_BASE_H
+#define EXEC_USER_GUEST_BASE_H
+
+extern uintptr_t guest_base;
+
+#endif

tcg/tcg.c

@@ -63,6 +63,9 @@
 #include "tcg/tcg-temp-internal.h"
 #include "tcg-internal.h"
 #include "accel/tcg/perf.h"
+#ifdef CONFIG_USER_ONLY
+#include "exec/user/guest-base.h"
+#endif
 
 /* Forward declarations for functions declared in tcg-target.c.inc and
    used here. */