qemu v8.0-rc3 fails to compile with Xen

[Olaf Hering]

Qemu v7.2.1 can be compiled with Xen 4.6, but v8.0.0-rc3 needs now at least Xen 
4.7.

Is Xen older than 4.7 still a supported target? There is a lot compat code, and 
the meson checks go back to 4.2.

Olaf


FAILED: libcommon.fa.p/hw_xen_xen-operations.c.o 
/usr/bin/gcc-7 -m64 -mcx16 -Ilibcommon.fa.p -I/usr/include/pixman-1 
-I/usr/include/libpng16 -I/usr/include/spice-server -I/usr/include/cacard 
-I/usr/include/nss3 -I/usr/include/nspr4 -I/usr/include/glib-2.0 
-I/usr/lib64/glib-2.0/include -I/usr/include/spice-1 -I/usr/include/p11-kit-1 
-I/usr/include/libusb-1.0 -I/usr/include/libmount -I/usr/include/blkid 
-I/usr/include/gio-unix-2.0 -I/usr/include/ncursesw -fdiagnostics-color=auto 
-Wall -Winvalid-pch -std=gnu11 -O2 -isystem /Qc6f3cbca32/linux-headers -isystem 
linux-headers -iquote . -iquote /Qc6f3cbca32 -iquote /Qc6f3cbca32/include 
-iquote /Qc6f3cbca32/tcg/i386 -pthread -U_FORTIFY_SOURCE -D_GNU_SOURCE 
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fno-common 
-fwrapv -Wundef -Wwrite-strings -Wmissing-prototypes -Wstrict-prototypes 
-Wredundant-decls -Wold-style-declaration -Wold-style-definition -Wtype-limits 
-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wempty-body 
-Wnested-externs -Wendif-labels -Wexpansion-to-defined -Wimplicit-fallthrough=2 
-Wmissing-format-attribute -Wno-missing-include-dirs -Wno-shift-negative-value 
-Wno-psabi -fstack-protector-strong -fmessage-length=0 -grecord-gcc-switches 
-O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables 
-fasynchronous-unwind-tables -fstack-clash-protection -fPIE -DOPENSSL_LOAD_CONF 
-MD -MQ libcommon.fa.p/hw_xen_xen-operations.c.o -MF 
libcommon.fa.p/hw_xen_xen-operations.c.o.d -o 
libcommon.fa.p/hw_xen_xen-operations.c.o -c ../hw/xen/xen-operations.c
In file included from ../hw/xen/xen-operations.c:16:0:
/Qc6f3cbca32/include/hw/xen/xen_native.h: In function 'xenforeignmemory_map2':
/Qc6f3cbca32/include/hw/xen/xen_native.h:121:12: warning: implicit declaration 
of function 'xenforeignmemory_map'; did you mean 'xenforeignmemory_map2'? 
[-Wimplicit-function-declaration]
     return xenforeignmemory_map(h, dom, prot, pages, arr, err);
            ^~~~~~~~~~~~~~~~~~~~
            xenforeignmemory_map2
/Qc6f3cbca32/include/hw/xen/xen_native.h:121:12: warning: nested extern 
declaration of 'xenforeignmemory_map' [-Wnested-externs]
/Qc6f3cbca32/include/hw/xen/xen_native.h:121:12: warning: return makes pointer 
from integer without a cast [-Wint-conversion]
     return xenforeignmemory_map(h, dom, prot, pages, arr, err);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c: At top level:
../hw/xen/xen-operations.c:37:19: error: conflicting types for 
'xenevtchn_handle'
 typedef xc_evtchn xenevtchn_handle;
                   ^~~~~~~~~~~~~~~~
In file included from ../hw/xen/xen-operations.c:17:0:
/Qc6f3cbca32/include/hw/xen/xen_backend_ops.h:33:33: note: previous declaration 
of 'xenevtchn_handle' was here
 typedef struct xenevtchn_handle xenevtchn_handle;
                                 ^~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:49:19: error: conflicting types for 
'xengnttab_handle'
 typedef xc_gnttab xengnttab_handle;
                   ^~~~~~~~~~~~~~~~
In file included from ../hw/xen/xen-operations.c:17:0:
/Qc6f3cbca32/include/hw/xen/xen_backend_ops.h:136:33: note: previous 
declaration of 'xengnttab_handle' was here
 typedef struct xengntdev_handle xengnttab_handle;
                                 ^~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:193:13: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]
     .open = libxenevtchn_backend_open,
             ^~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:193:13: note: (near initialization for 
'libxenevtchn_backend_ops.open')
../hw/xen/xen-operations.c:194:14: error: 'xenevtchn_close' undeclared here 
(not in a function); did you mean 'xc_evtchn_close'?
     .close = xenevtchn_close,
              ^~~~~~~~~~~~~~~
              xc_evtchn_close
../hw/xen/xen-operations.c:195:25: error: 'xenevtchn_bind_interdomain' 
undeclared here (not in a function); did you mean 'xc_evtchn_bind_interdomain'?
     .bind_interdomain = xenevtchn_bind_interdomain,
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~
                         xc_evtchn_bind_interdomain
../hw/xen/xen-operations.c:196:15: error: 'xenevtchn_unbind' undeclared here 
(not in a function); did you mean 'xc_evtchn_unbind'?
     .unbind = xenevtchn_unbind,
               ^~~~~~~~~~~~~~~~
               xc_evtchn_unbind
../hw/xen/xen-operations.c:197:15: error: 'xenevtchn_fd' undeclared here (not 
in a function); did you mean 'xc_evtchn_fd'?
     .get_fd = xenevtchn_fd,
               ^~~~~~~~~~~~
               xc_evtchn_fd
../hw/xen/xen-operations.c:198:15: error: 'xenevtchn_notify' undeclared here 
(not in a function); did you mean 'xc_evtchn_notify'?
     .notify = xenevtchn_notify,
               ^~~~~~~~~~~~~~~~
               xc_evtchn_notify
../hw/xen/xen-operations.c:199:15: error: 'xenevtchn_unmask' undeclared here 
(not in a function); did you mean 'xc_evtchn_unmask'?
     .unmask = xenevtchn_unmask,
               ^~~~~~~~~~~~~~~~
               xc_evtchn_unmask
../hw/xen/xen-operations.c:200:16: error: 'xenevtchn_pending' undeclared here 
(not in a function); did you mean 'xc_evtchn_pending'?
     .pending = xenevtchn_pending,
                ^~~~~~~~~~~~~~~~~
                xc_evtchn_pending
../hw/xen/xen-operations.c:218:13: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]
     .open = libxengnttab_backend_open,
             ^~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:218:13: note: (near initialization for 
'libxengnttab_backend_ops.open')
../hw/xen/xen-operations.c:219:14: error: 'xengnttab_close' undeclared here 
(not in a function); did you mean 'xc_gnttab_close'?
     .close = xengnttab_close,
              ^~~~~~~~~~~~~~~
              xc_gnttab_close
../hw/xen/xen-operations.c:220:19: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]
     .grant_copy = libxengnttab_fallback_grant_copy,
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:220:19: note: (near initialization for 
'libxengnttab_backend_ops.grant_copy')
../hw/xen/xen-operations.c:221:23: error: 'xengnttab_set_max_grants' undeclared 
here (not in a function); did you mean 'xc_gnttab_set_max_grants'?
     .set_max_grants = xengnttab_set_max_grants,
                       ^~~~~~~~~~~~~~~~~~~~~~~~
                       xc_gnttab_set_max_grants
../hw/xen/xen-operations.c:222:17: error: 'xengnttab_map_domain_grant_refs' 
undeclared here (not in a function); did you mean 
'xc_gnttab_map_domain_grant_refs'?
     .map_refs = xengnttab_map_domain_grant_refs,
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                 xc_gnttab_map_domain_grant_refs
../hw/xen/xen-operations.c:223:14: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]
     .unmap = libxengnttab_backend_unmap,
              ^~~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xen/xen-operations.c:223:14: note: (near initialization for 
'libxengnttab_backend_ops.unmap')
../hw/xen/xen-operations.c:229:57: error: unknown type name 'xfn_pfn_t'; did 
you mean 'xen_pfn_t'?
                                           size_t pages, xfn_pfn_t *pfns,
                                                         ^~~~~~~~~
                                                         xen_pfn_t
../hw/xen/xen-operations.c:262:12: error: 'libxenforeignmem_backend_map' 
undeclared here (not in a function); did you mean 
'libxenforeignmem_backend_unmap'?
     .map = libxenforeignmem_backend_map,
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
            libxenforeignmem_backend_unmap
ninja: build stopped: subcommand failed.
make[1]: *** [Makefile:165: run-ninja] Error 1

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