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March 2020

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[opensuse-virtual] qemu 4.2.0 builds with GCC10 -> fail; GCC9 ok ?
by PGNet Dev 24 Mar '20

24 Mar '20

just starting exploring builds with GCC-10 building qemu 4.2.0, linked from Virtualization:qemu @ my obs, https://build.opensuse.org/project/show/home:pgnd:Virtualization:qemu with gcc --version gcc (SUSE Linux) 10.0.1 20200320 (experimental) [revision 7d4549b2cd209eb621453ce13be7ffd84ffa720a] build on OBS currently fails ... [ 244s ]cc -iquote /home/abuild/rpmbuild/BUILD/mybuilddir/contrib/vhost-user-gpu -iquote contrib/vhost-user-gpu -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/tcg -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/tcg/i386-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/linux-headers -I/home/abuild/rpmbuild/BUILD/mybuilddir/linux-headers -iquote . -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0-iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/accel/tcg -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/include -I/usr/include/pixman-1-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/dtc/libfdt -Werror -pthread -I/usr/include/glib-2.0-I/usr/lib64/glib-2.0/include -pthread -I/usr/include/glib-2.0-I/usr/lib64/glib-2.0/include -fPIE -DPIE -m64-mcx16-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64-D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -std=gnu99-fmessage-length=0-grecord-gcc-switches -O2-Wall -D_FORTIFY_SOURCE=2-fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -I/usr/include/p11-kit-1-I/usr/include/libpng16-I/usr/include/libdrm -pthread -DOPENSSL_LOAD_CONF -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/pixman-1-I/usr/include/spice-1-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/tests -MMD -MP -MT contrib/vhost-user-gpu/virgl.o -MF contrib/vhost-user-gpu/virgl.d -O2-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2-g -I/usr/include/virgl -c -o contrib/vhost-user-gpu/virgl.o /home/abuild/rpmbuild/BUILD/qemu-4.2.0/contrib/vhost-user-gpu/virgl.c [ 244s ]/home/abuild/rpmbuild/BUILD/qemu-4.2.0/scsi/qemu-pr-helper.c: In function 'multipath_pr_out': [ 244s ]/home/abuild/rpmbuild/BUILD/qemu-4.2.0/scsi/qemu-pr-helper.c:523:32: error: array subscript <unknown> is outside array bounds of 'struct transportid *[ 0 ]' [ -Werror=array-bounds ][ 244s ]523| paramp.trnptid_list[ paramp.num_transportid++ ]= id; [ 244s ]| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ [ 244s ]In file included from /home/abuild/rpmbuild/BUILD/qemu-4.2.0/scsi/qemu-pr-helper.c:36: [ 244s ]/usr/include/mpath_persist.h:168:22: note: while referencing 'trnptid_list' [ 244s ]168| struct transportid *trnptid_list[]; [ 244s ]| ^~~~~~~~~~~~ [ 244s ]/home/abuild/rpmbuild/BUILD/qemu-4.2.0/scsi/qemu-pr-helper.c:424:35: note: defined here 'paramp' [ 244s ]424| struct prout_param_descriptor paramp; [ 244s ]| ^~~~~~ [ 245s ]cc -iquote /home/abuild/rpmbuild/BUILD/mybuilddir/contrib/vhost-user-gpu -iquote contrib/vhost-user-gpu -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/tcg -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/tcg/i386-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/linux-headers -I/home/abuild/rpmbuild/BUILD/mybuilddir/linux-headers -iquote . -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0-iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/accel/tcg -iquote /home/abuild/rpmbuild/BUILD/qemu-4.2.0/include -I/usr/include/pixman-1-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/dtc/libfdt -Werror -pthread -I/usr/include/glib-2.0-I/usr/lib64/glib-2.0/include -pthread -I/usr/include/glib-2.0-I/usr/lib64/glib-2.0/include -fPIE -DPIE -m64-mcx16-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64-D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -std=gnu99-fmessage-length=0-grecord-gcc-switches -O2-Wall -D_FORTIFY_SOURCE=2-fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -I/usr/include/p11-kit-1-I/usr/include/libpng16-I/usr/include/libdrm -pthread -DOPENSSL_LOAD_CONF -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/pixman-1-I/usr/include/spice-1-I/home/abuild/rpmbuild/BUILD/qemu-4.2.0/tests -MMD -MP -MT contrib/vhost-user-gpu/vugbm.o -MF contrib/vhost-user-gpu/vugbm.d -O2-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2-g -c -o contrib/vhost-user-gpu/vugbm.o /home/abuild/rpmbuild/BUILD/qemu-4.2.0/contrib/vhost-user-gpu/vugbm.c [ 245s ]cc1: all warnings being treated as errors [ 245s ]make: *** [ /home/abuild/rpmbuild/BUILD/qemu-4.2.0/rules.mak:69: scsi/qemu-pr-helper.o ]Error 1[ 245s ]make: *** Waiting for unfinished jobs.... [ 245s ]error: Bad exit status from /var/tmp/rpm-tmp.Z5bWqs (%build) ... with gcc*9*, all's good. there are certainly GCC10 bugs that are affecting kernel builds; not surprising that there might be others. _completely_ unclear, yet, if THIS^^ is GCC10- or qemu- related ... or perhaps prjconf on obs ... anyone had luck with a qemu pkg build wigh GCC 10? or off-the-bat recognize the issue?

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