Files
xen/tools/libs/foreignmemory/minios.c
T
Julien Grall 3a98c1a4ce stubdom: foreignmemory: Fix build after 0dbb4be739
Commit 0dbb4be739 add the inclusion of xenctrl.h from private.h and
wreck the build in an interesting way:

In file included from xen/stubdom/include/xen/domctl.h:39:0,
                 from xen/tools/include/xenctrl.h:36,
                 from private.h:4,
                 from minios.c:29:
xen/include/public/memory.h:407:5: error: expected specifier-qualifier-list before ‘XEN_GUEST_HANDLE_64’
     XEN_GUEST_HANDLE_64(const_uint8) buffer;
     ^~~~~~~~~~~~~~~~~~~

This is happening because xenctrl.h defines __XEN_TOOLS__ and therefore
the public headers will start to expose the non-stable ABI. However,
xen.h has already been included by a mini-OS header before hand. So
there is a mismatch in the way the headers are included.

For now solve it in a very simple (and gross) way by including
xenctrl.h before the mini-os headers.

Fixes: 0dbb4be739 ("tools/libs/foreignmemory: Fix PAGE_SIZE redefinition error")
Signed-off-by: Julien Grall <jgrall@amazon.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
2021-07-13 12:58:29 +01:00

78 lines
2.1 KiB
C

/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; If not, see <http://www.gnu.org/licenses/>.
*
* Split out from xc_minios.c
*
* Copyright 2007-2008 Samuel Thibault <samuel.thibault@eu.citrix.com>.
*/
/*
* xenctrl.h currently defines __XEN_TOOLS__ which affects what is
* exposed by Xen headers. As the define needs to be set consistently,
* we want to include xenctrl.h before the mini-os headers (they include
* public headers).
*/
#include <xenctrl.h>
#include <mini-os/types.h>
#include <mini-os/os.h>
#include <mini-os/mm.h>
#include <mini-os/lib.h>
#include <errno.h>
#include <sys/mman.h>
#include "private.h"
int osdep_xenforeignmemory_open(xenforeignmemory_handle *fmem)
{
/* No fd required */
return 0;
}
int osdep_xenforeignmemory_close(xenforeignmemory_handle *fmem)
{
return 0;
}
void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem,
uint32_t dom, void *addr,
int prot, int flags, size_t num,
const xen_pfn_t arr[/*num*/], int err[/*num*/])
{
unsigned long pt_prot = 0;
if (prot & PROT_READ)
pt_prot = L1_PROT_RO;
if (prot & PROT_WRITE)
pt_prot = L1_PROT;
return map_frames_ex(arr, num, 1, 0, 1, dom, err, pt_prot);
}
int osdep_xenforeignmemory_unmap(xenforeignmemory_handle *fmem,
void *addr, size_t num)
{
return munmap(addr, num << XC_PAGE_SHIFT);
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/