On Tue, May 31, 2016 at 10:25:20AM -0400, Programmingkid wrote: > > On May 31, 2016, at 10:00 AM, Daniel P. Berrange wrote: > > > On Fri, May 20, 2016 at 04:43:51PM -0600, Eric Blake wrote: > >> On 05/20/2016 01:15 PM, Programmingkid wrote: > >>> Noticed this bug after a 'git pull'. My repo is at commit > >>> 65603e2fc18b48e6e55a3dd693669413141694ec - > >>> tci: do not include exec/exec-all.h > >>> > >>> I am building QEMU on Mac OS 10.6 with GCC 4.9. > >>> Here is the full message: > >>> > >>> LINK qemu-nbd > >>> Undefined symbols for architecture x86_64: > >>> "_nettle_cast5_set_key", referenced from: > >>> _qcrypto_cipher_new in cipher.o > >> > >> What version of nettle are you compiling against? Obviously it's an > >> older version, but is it one that we need to work around at configure > >> time, or one that you should just update locally? > > > > So we already have compatibility code to allow us to build with older > > versions of nettle that I've tested right back to nettle 2.4. > > > > The "cast5_set_key" method is present in the nettle 3.2 version that > > Programmingkid has installed. The nettle headers mangle the name > > 'cast5_set_key' into 'nettle_cast5_set_key', but I'm not sure where > > the extra leading '_' is coming from in either _nettle_cast5_set_key > > or _qcrypto_cipher_new. Presumably that is something specific to > > Os-X linking. > > > > So I don't think this is a question of incompatible older versions of > > nettle. Rather than is some problem with linking going on here. > > > > > > I'd like to see the output of 'configure' as well as the config.log > > and config-host.mak files that it generates when showing this error. > > > > Also I'd like the output of 'make V=1' so we see the full linker > > command line, not just the summary. > > > > Regards, > > Daniel > > Here is everything you wanted: configure output, config.log, config-host.mak, > and make V=1. > > $ ./configure --cxx=gcc-4.9 --cc=gcc-4.9 --objcc=gcc-4.9 --disable-gtk > --disable-sdl --target-list=ppc-softmmu,i386-softmmu > ld: unknown option: --verbose
> GNUTLS support yes > GNUTLS hash yes > GNUTLS rnd yes > libgcrypt no > libgcrypt kdf no > nettle yes (3.2) > nettle kdf yes Ok, that shows we've detected your nettle 3.2 install. The support for 'kdf' also shows we successfully compiled and linked against that. This is shows your 3.2 install of nettle is present & correct which is good. > libtasn1 yes > curses support yes > virgl support no > curl support yes > mingw32 support no > Audio drivers coreaudio > Block whitelist (rw) > Block whitelist (ro) > VirtFS support no > VNC support yes > VNC SASL support yes > VNC JPEG support yes > VNC PNG support yes > xen support no > brlapi support no > bluez support no > Documentation yes > PIE no > vde support no > netmap support no > Linux AIO support no > ATTR/XATTR support no > Install blobs yes > KVM support no > RDMA support no > TCG interpreter no > fdt support yes > preadv support no > fdatasync no > madvise yes > posix_madvise yes > sigev_thread_id no > uuid support yes > libcap-ng support no > vhost-net support no > vhost-scsi support no > Trace backends log > spice support no > rbd support no > xfsctl support no > smartcard support no > libusb yes > usb net redir yes > OpenGL support no > OpenGL dmabufs no > libiscsi support no > libnfs support no > build guest agent yes > QGA VSS support no > QGA w32 disk info no > QGA MSI support no > seccomp support no > coroutine backend sigaltstack > coroutine pool yes > GlusterFS support no > Archipelago support no > gcov gcov > gcov enabled no > TPM support yes > libssh2 support no > TPM passthrough no > QOM debugging yes > vhdx yes > lzo support no > snappy support no > bzip2 support yes > NUMA host support no > tcmalloc support no > jemalloc support no > avx2 optimization no > > > > The config.log file: > > gcc-4.9 -m64 -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -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 -Wendif-labels -Wmissing-include-dirs > -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self > -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition > -Wtype-limits -fstack-protector-strong > -I/usr/local/Cellar/gnutls/3.4.11/include > -I/usr/local/Cellar/nettle/3.2/include > -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include -o > config-temp/qemu-conf.exe config-temp/qemu-conf.c -m64 -framework > CoreFoundation -framework IOKit -arch x86_64 -g > -L/usr/local/Cellar/gnutls/3.4.11/lib -lgnutls > gcc-4.9 -m64 -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -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 -Wendif-labels -Wmissing-include-dirs > -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self > -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition > -Wtype-limits -fstack-protector-strong > -I/usr/local/Cellar/gnutls/3.4.11/include > -I/usr/local/Cellar/nettle/3.2/include > -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include > -I/usr/local/Cellar/nettle/3.2/include -I/usr/local/Cellar/nettle/3.2/include > -o config-temp/qemu-conf.exe config-temp/qemu-conf.c -m64 -framework > CoreFoundation -framework IOKit -arch x86_64 -g > -L/usr/local/Cellar/nettle/3.2/lib -lnettle This is the link line where configure tested for the KDF function and it looks normal and is pointing the linker to /usr/local/Cellar/nettle/3.2/lib > gcc-4.9 -I/opt/local/include/pixman-1 > -I/Users/john/Documents/Development/Projects/Qemu/qemu-git/dtc/libfdt -m64 > -DOS_OBJECT_USE_OBJC=0 -arch x86_64 -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 > -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs > -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers > -Wold-style-declaration -Wold-style-definition -Wtype-limits > -fstack-protector-strong -I/usr/local/Cellar/gnutls/3.4.11/include > -I/usr/local/Cellar/nettle/3.2/include > -I/usr/local/Cellar/libtasn1/4.8/include -I/opt/local/include > -I/usr/local/Cellar/nettle/3.2/include -I/opt/local/include/libpng16 > -I/usr/local/Cellar/libusb/1.0.20/include/libusb-1.0 > -I/usr/local/Cellar/usbredir/0.7.1/include > -I/Users/john/Documents/Development/Projects/Qemu/qemu-git/tests -O2 > -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -D_REENTRANT > -I/usr/local/Cellar/glib/2.46.2/include/glib-2.0 > -I/usr/local/Cellar/glib/2.46.2/lib/glib-2.0/include > -I/usr/local/opt/gettext/include -g -m64 -framework CoreFoundation > -framework IOKit -arch x86_64 -g -o qemu-nbd qemu-nbd.o async.o > thread-pool.o block.o blockjob.o main-loop.o iohandler.o qemu-timer.o > aio-posix.o qemu-io-cmds.o block/raw_bsd.o block/qcow.o block/vdi.o > block/vmdk.o block/cloop.o block/bochs.o block/vpc.o block/vvfat.o > block/qcow2.o block/qcow2-refcount.o block/qcow2-cluster.o > block/qcow2-snapshot.o block/qcow2-cache.o block/qed.o block/qed-gencb.o > block/qed-l2-cache.o block/qed-table.o block/qed-cluster.o block/qed-check.o > block/vhdx.o block/vhdx-endian.o block/vhdx-log.o block/quorum.o > block/parallels.o block/blkdebug.o block/blkverify.o block/blkreplay.o > block/block-backend.o block/snapshot.o block/qapi.o block/raw-posix.o > block/null.o block/mirror.o block/io.o block/throttle-groups.o block/nbd.o > block/nbd-client.o block/sheepdog.o block/accounting.o block/dirty-bitmap.o > block/write-threshold.o block/crypto.o nbd/server.o nbd/client.o nbd/common.o > block/curl.o block/dmg.o crypto/init.o crypto/hash.o crypto/aes.o > crypto/desrfb.o crypto/cipher.o crypto/tlscreds.o crypto/tlscredsanon.o > crypto/tlscredsx509.o crypto/tlssession.o crypto/secret.o > crypto/random-gnutls.o crypto/pbkdf.o crypto/pbkdf-nettle.o crypto/ivgen.o > crypto/ivgen-essiv.o crypto/ivgen-plain.o crypto/ivgen-plain64.o > crypto/afsplit.o crypto/xts.o crypto/block.o crypto/block-qcow.o > crypto/block-luks.o io/channel.o io/channel-buffer.o io/channel-command.o > io/channel-file.o io/channel-socket.o io/channel-tls.o io/channel-watch.o > io/channel-websock.o io/channel-util.o io/task.o qom/object.o qom/container.o > qom/qom-qobject.o qom/object_interfaces.o libqemuutil.a libqemustub.a -lz > -L/opt/local/lib -lcurl -lbz2 -L/usr/local/Cellar/glib/2.46.2/lib > -L/usr/local/opt/gettext/lib -lgthread-2.0 -lglib-2.0 -lintl -lz -lz > -L/usr/local/Cellar/nettle/3.2/lib -lnettle > -L/usr/local/Cellar/gnutls/3.4.11/lib -lgnutls -lutil > Undefined symbols for architecture x86_64: > "_nettle_cast5_set_key", referenced from: > _qcrypto_cipher_new in cipher.o > ld: symbol(s) not found for architecture x86_64 > collect2: error: ld returned 1 exit status > make: *** [qemu-nbd] Error 1 This linker line again looks basically sound. It is still passing the correct -lnettle arg, and the -I and -L args to point to the nettle 3.2 installation. Given that we found the "KDF" support in nettle, we know that it is new enough to support the "nettle_cast5_set_key" function too so we ought to link correctly. The only thing that occurs to me is that we have a number of other -L args present - eg -L/opt/local/lib. I wonder if one of those other search paths has a differnet version of nettle installed in it, causing gcc to link to the wrong one. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
