On 7/8/20 9:23 PM, Alexander Bulekov wrote: > Hi Li, > I usually build the fuzzer with "make i386-softmmu/fuzz", so I must have > missed the nbd issue... I could not reproduce this locally since: > > alxndr@mozz:qemu(master)$ dpkg -l "*glib2.0-bin*" > Desired=Unknown/Install/Remove/Purge/Hold > | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend > |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) > ||/ Name Version Architecture Description > +++-==============-============-============-================================= > ii libglib2.0-bin 2.60.6-2 amd64 Programs for the GLib library > > The issue described in 9bda600b083 only shows up in versions older than > 2.57.2... > > After some digging, in ./configure: > ... > if test "$have_fuzzer" = "yes"; then > FUZZ_LDFLAGS=" -fsanitize=address,fuzzer" > FUZZ_CFLAGS=" -fsanitize=address,fuzzer" > CFLAGS=" -fsanitize=address,fuzzer-no-link" > > Thats probably the issue. Should be > CFLAGS="$CFLAGS -fsanitize=address,fuzzer-no-link"
Oops, 3 reviewers missed that... > > I'm also having trouble building, but for a different reason.. > > CC=clang-8 CXX=clang++-8 ./configure --target-list="i386-softmmu" > --enable-fuzzing > ... > CC i386-softmmu/tests/qtest/fuzz/qtest_wrappers.o > /tmp/qemu/tests/qtest/fuzz/fuzz.c:215:5: error: implicit declaration of > function 'rcu_enable_atfork' is invalid in C99 > [-Werror,-Wimplicit-function-declaration] > rcu_enable_atfork(); > ^ > 45222b9a9016488289a1938a528239c3b83eddb1 is the first bad commit > commit 45222b9a9016488289a1938a528239c3b83eddb1 > Author: Alexander Bulekov <alx...@bu.edu> > Date: Thu Jun 18 12:05:16 2020 -0400 > > fuzz: fix broken qtest check at rcu_disable_atfork > > Looks like I forgot a header... I'll send fixes for both of these > issues. > > Thank you > -Alex
