From 3637cf58f9441ad277fd70299a29d0e39b32c96c Mon Sep 17 00:00:00 2001 From: "Emilio G. Cota" Date: Sat, 15 Jul 2017 03:24:27 -0400 Subject: util: move qemu_real_host_page_size/mask to osdep.h These only depend on the host and therefore belong in the common osdep, not in a target-dependent object. While at it, query the host during an init constructor, which guarantees the page size will be well-defined throughout the execution of the program. Suggested-by: Richard Henderson Reviewed-by: Richard Henderson Signed-off-by: Emilio G. Cota Signed-off-by: Richard Henderson --- util/pagesize.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 util/pagesize.c (limited to 'util/pagesize.c') diff --git a/util/pagesize.c b/util/pagesize.c new file mode 100644 index 0000000000..998632cf6e --- /dev/null +++ b/util/pagesize.c @@ -0,0 +1,18 @@ +/* + * pagesize.c - query the host about its page size + * + * Copyright (C) 2017, Emilio G. Cota + * License: GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" + +uintptr_t qemu_real_host_page_size; +intptr_t qemu_real_host_page_mask; + +static void __attribute__((constructor)) init_real_host_page_size(void) +{ + qemu_real_host_page_size = getpagesize(); + qemu_real_host_page_mask = -(intptr_t)qemu_real_host_page_size; +} -- cgit v1.2.1