Re: [PULL v3 00/38] Misc patches (buildsys, i386, fuzzing) for 2021-01-29

[Peter Maydell]

On Tue, 2 Feb 2021 at 07:48, Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> The following changes since commit 74208cd252c5da9d867270a178799abd802b9338:
>
>   Merge remote-tracking branch 
> 'remotes/berrange-gitlab/tags/misc-fixes-pull-request' into staging 
> (2021-01-29 19:51:25 +0000)
>
> are available in the Git repository at:
>
>   https://gitlab.com/bonzini/qemu.git tags/for-upstream
>
> for you to fetch changes up to a365bda83444f142bb1b9c1b5fdcdefade87981d:
>
>   pc-bios/descriptors: fix paths in json files (2021-02-01 17:30:52 +0100)
>
> ----------------------------------------------------------------
> * Fuzzing improvements (Qiuhao, Alexander)
> * i386: Fix BMI decoding for instructions with the 0x66 prefix (David)
> * slirp update (Marc-André)
> * initial attempt at fixing event_notifier emulation (Maxim)
> * i386: PKS emulation, fix for "qemu-system-i386 -cpu host" (myself)
> * meson: RBD test fixes (myself)
> * meson: TCI warnings (Philippe)
> * Leaner build for --disable-guest-agent, --disable-system and
>   --disable-tools (Philippe, Stefan)
> * --enable-tcg-interpreter fix (Richard)
> * i386: SVM feature bits (Wei)
> * HVF bugfix (Alex)
> * KVM bugfix (Thomas)

Fails to build, x86-64 Linux clang.
(configure rune:
 '../../configure' '--cc=clang' '--cxx=clang++' '--enable-gtk'
'--extra-cflags=-fsanitize=undefined  -fno-sanitize=shift-base
-Werror')

clang  -o subprojects/libslirp/libslirp.so.0.2.3
subprojects/libslirp/libslirp.so.0.2.3.p/src_arp_table.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_bootp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_cksum.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_dhcpv6.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_dnssearch.c.o
subprojects/libslirp/libslirp.so.0.2
.3.p/src_if.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip6_icmp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip6_input.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip6_output.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip_icmp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip_input.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ip_output.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_mbuf.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_misc.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ncsi.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_ndp_table.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_sbuf.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_slirp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/
src_socket.c.o subprojects/libslirp/libslirp.so.0.2.3.p/src_state.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_stream.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_tcp_input.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_tcp_output.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_tcp_subr.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_tcp_timer.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_tftp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_udp.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_udp6.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_util.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_version.c.o
subprojects/libslirp/libslirp.so.0.2.3.p/src_vmstate.c.o
-Wl,--as-needed -Wl,--no-undefined -shared -fPIC -Wl,--start-group
-Wl,-soname,libslirp.so.0 -Wl,--warn-common -Wl,-z,relro -Wl,-z,now
-m64 -fsanitize=undefined -fno-sanitize=shift-base -Werror
-fstack-protector-strong
-Wl,--version-script,/home/petmay01/linaro/qemu-for-merges/subprojects/libslirp/src/libslirp.map
-pthread -lgthread-2.0 -lglib-2.0 -Wl,--end-group
subprojects/libslirp/libslirp.so.0.2.3.p/src_arp_table.c.o: In
function `arp_table_add':
/home/petmay01/linaro/qemu-for-merges/build/clang/../../subprojects/libslirp/src/arp_table.c:50:
undefined reference to `__ubsan_handle_type_mismatch_v1'
/home/petmay01/linaro/qemu-for-merges/build/clang/../../subprojects/libslirp/src/arp_table.c:50:
undefined reference to `__ubsan_handle_type_mismatch_v1'
[etc etc etc]
/home/petmay01/linaro/qemu-for-merges/build/clang/../../subprojects/libslirp/src/arp_table.c:52:
undefined reference to `__ubsan_handle_nonnull_arg'
/home/petmay01/linaro/qemu-for-merges/build/clang/../../subprojects/libslirp/src/arp_table.c:58:
undefined reference to `__ubsan_handle_type_mismatch_v1'
[etc etc etc]

and so on for lots of other libslirp files and ubsan symbols.

thanks
-- PMM