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-rwxr-xr-xconfigure24
1 files changed, 15 insertions, 9 deletions
diff --git a/configure b/configure
index a79b374..cc435e2 100755
--- a/configure
+++ b/configure
@@ -463,7 +463,7 @@ skip_meson=no
gettext="auto"
fuse="auto"
fuse_lseek="auto"
-multiprocess="no"
+multiprocess="auto"
malloc_trim="auto"
@@ -798,7 +798,6 @@ Linux)
linux="yes"
linux_user="yes"
vhost_user=${default_feature:-yes}
- multiprocess=${default_feature:-yes}
;;
esac
@@ -1558,9 +1557,9 @@ for opt do
;;
--disable-fuse-lseek) fuse_lseek="disabled"
;;
- --enable-multiprocess) multiprocess="yes"
+ --enable-multiprocess) multiprocess="enabled"
;;
- --disable-multiprocess) multiprocess="no"
+ --disable-multiprocess) multiprocess="disabled"
;;
*)
echo "ERROR: unknown option $opt"
@@ -1914,7 +1913,7 @@ disabled with --disable-FEATURE, default is enabled if available
libdaxctl libdaxctl support
fuse FUSE block device export
fuse-lseek SEEK_HOLE/SEEK_DATA support for FUSE exports
- multiprocess Multiprocess QEMU support
+ multiprocess Out of process device emulation support
NOTE: The object files are built at the place where configure is launched
EOF
@@ -6089,14 +6088,21 @@ fi
if test "$have_mlockall" = "yes" ; then
echo "HAVE_MLOCKALL=y" >> $config_host_mak
fi
-if test "$multiprocess" = "yes" ; then
- echo "CONFIG_MULTIPROCESS_ALLOWED=y" >> $config_host_mak
-fi
if test "$fuzzing" = "yes" ; then
# If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
# needed CFLAGS have already been provided
if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
+ # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
+ # compiled code.
QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
+ # To build non-fuzzer binaries with --enable-fuzzing, link everything with
+ # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
+ # the fuzzer-related callbacks added by instrumentation.
+ QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
+ # For the actual fuzzer binaries, we need to link against the libfuzzer
+ # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
+ # rule for the fuzzer adds these to the link_args. They need to be
+ # configurable, to support OSS-Fuzz
FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
else
FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
@@ -6424,7 +6430,7 @@ NINJA=$ninja $meson setup \
-Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
-Dattr=$attr -Ddefault_devices=$default_devices \
-Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
- -Dvhost_user_blk_server=$vhost_user_blk_server \
+ -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
-Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi \
$(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
-Dtcg_interpreter=$tcg_interpreter \