https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88780

Marietto <marietto2008 at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |marietto2008 at gmail dot com

--- Comment #6 from Marietto <marietto2008 at gmail dot com> ---
Hello.

I'm a xen user. I'm trying to Build Qemu & Xen for XenGT on Ubuntu 20.04
following this tutorial :

https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide#332-build-qemu--xen-for-xengt

because I want to share the integrated GPU with a xen VM.

The main hardware components of my PC are the following :

CPU I9-9900k

Intel Corporation UHD Graphics 630 (Desktop 9 Series) (rev 02)

IVIDIA Corporation TU102 [GeForce RTX 2080 Ti] (rev a1)

The compilation gave no errors until this point :

root@ziomario-z390aoruspro:/etc/xen/igvtg-xen# make install-tools

......

make libs
make[5]: ingresso nella directory «/etc/xen/igvtg-xen/tools/libxc»
rm -f _paths.h.tmp; echo "#define sbindir "/usr/sbin"" >>_paths.h.tmp; echo
"#define bindir "/usr/bin"" >>_paths.h.tmp; echo "#define LIBEXEC
"/usr/lib/xen"" >>_paths.h.tmp; echo "#define LIBEXEC_BIN "/usr/lib/xen/bin""
>>_paths.h.tmp; echo "#define libdir "/usr/lib"" >>_paths.h.tmp; echo "#define
SHAREDIR "/usr/share"" >>_paths.h.tmp; echo "#define XENFIRMWAREDIR
"/usr/lib/xen/boot"" >>_paths.h.tmp; echo "#define XEN_CONFIG_DIR "/etc/xen""
>>_paths.h.tmp; echo "#define XEN_SCRIPT_DIR "/etc/xen/scripts""
>>_paths.h.tmp; echo "#define XEN_LOCK_DIR "/var/lock"" >>_paths.h.tmp; echo
"#define XEN_RUN_DIR "/var/run/xen"" >>_paths.h.tmp; echo "#define
XEN_PAGING_DIR "/var/lib/xen/xenpaging"" >>_paths.h.tmp; echo "#define
XEN_DUMP_DIR "/var/lib/xen/dump"" >>_paths.h.tmp; echo "#define XEN_LOG_DIR
"/var/log/xen"" >>_paths.h.tmp; echo "#define XEN_LIB_DIR "/var/lib/xen""
>>_paths.h.tmp; echo "#define XEN_RUN_STORED "/var/run/xenstored""
>>_paths.h.tmp; if ! cmp -s _paths.h.tmp paths.h; then mv -f paths.h.tmp
paths.h; else rm -f paths.h.tmp; fi
gcc -m64 -DBUILD_ID -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes
-Wdeclaration-after-statement -Wno-unused-but-set-variable
-Wno-unused-local-typedefs -O2 -fomit-frame-pointer
-D__XEN_INTERFACE_VERSION=XEN_LATEST_INTERFACE_VERSION -MMD -MF .xc_pm.o.d
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE
-I../../xen/common/libelf -Werror -Wmissing-prototypes -I. -I./include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include -D__XEN_TOOLS -pthread
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/toollog/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/evtchn/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/devicemodel/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include -include
/etc/xen/igvtg-xen/tools/libxc/../../tools/config.h
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/call/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/foreignmemory/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/libs/gnttab/include
-I/etc/xen/igvtg-xen/tools/libxc/../../tools/include -c -o xc_pm.o xc_pm.c
In file included from /usr/include/string.h:495,
from xc_private.h:24,
from xc_pm.c:22:
In function ‘strncpy’,
inlined from ‘xc_set_cpufreq_gov’ at xc_pm.c:308:5:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: error:
‘__builtin_strncpy’ specified bound 16 equals destination size
[-Werror=stringop-truncation]
106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [/etc/xen/igvtg-xen/tools/libxc/../../tools/Rules.mk:222: xc_pm.o]
Errore 1
make[5]: uscita dalla directory «/etc/xen/igvtg-xen/tools/libxc»
make[4]: *** [Makefile:184: build] Errore 2
make[4]: uscita dalla directory «/etc/xen/igvtg-xen/tools/libxc»
make[3]: *** [/etc/xen/igvtg-xen/tools/../tools/Rules.mk:246:
subdir-install-libxc] Errore 2
make[3]: uscita dalla directory «/etc/xen/igvtg-xen/tools»
make[2]: *** [/etc/xen/igvtg-xen/tools/../tools/Rules.mk:241: subdirs-install]
Errore 2
make[2]: uscita dalla directory «/etc/xen/igvtg-xen/tools»
make[1]: *** [Makefile:74: install] Errore 2
make[1]: uscita dalla directory «/etc/xen/igvtg-xen/tools»
make: *** [Makefile:127: install-tools] Errore 2

how can I fix it ?

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