Mark host brk() area as reserved.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4637 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 8b11495..093b8ff 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -232,6 +232,7 @@
                        abi_ulong new_size, unsigned long flags,
                        abi_ulong new_addr);
 int target_msync(abi_ulong start, abi_ulong len, int flags);
+extern unsigned long last_brk;
 
 /* user access */