linux-user: Add new flag VERIFY_NONE

This can be used to validate that an address range is mapped but without
being readable or writable.

It will be used by an updated implementation of mincore().

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230422100314.1650-2-thomas@t-8ch.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index e2e93fbd1d5d7cb8fa30cb9ca803ce1b94a1b1cf..92f9f5af41c7d987599b78a5f42006ac269c8f83 100644 (file)
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -168,6 +168,7 @@ abi_long do_brk(abi_ulong new_brk);
 
 /* user access */
 
+#define VERIFY_NONE  0
 #define VERIFY_READ  PAGE_READ
 #define VERIFY_WRITE (PAGE_READ | PAGE_WRITE)