I am using gentoo as a hypervisor and dom0. I've successfully built a
32bit 2.6.34 dom0 kernel and installed gentoo's xen 4.0.0 package.
However, compilation of the xen-tools package fails:
xen-detect.c: In function 'cpuid':
xen-detect.c:43: error: can't find a register in class 'BREG' while
reloading 'asm'
xen-detect.c:43: error: 'asm' operand has impossible constraints
The outcome is the same when I attempt to build from the official xen
4.0.0 hypervisor and tools source distribution (xen-4.0.0.tar.gz from
xen.org).
I have had success building this in a different, but similar, gentoo
environment, so I assume there is something amiss with my toolchain or
the gcc options I'm using. Any pointers toward a fix would be
appreciated. Thanks.
-mike d.
P.S. I've heard that the "hardened" use flag I've got enabled can cause
problems so I'm removing it and rebuilding tonight.
Configuration:
emerge --info xen-tools
Portage 2.1.8.3 (default/linux/x86/10.0, gcc-4.3.4, glibc-2.11.2-r0,
2.6.34-xen i686)
=================================================================
System Settings
=================================================================
System uname:
Linux-2.6.34-xen-i686-Intel-R-_Core-TM-2_Quad_CPU_@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Timestamp of tree: Sat, 10 Jul 2010 21:45:02 +0000
distcc 3.1 i686-pc-linux-gnu [disabled]
ccache version 2.4 [disabled]
app-shells/bash: 4.0_p37
dev-java/java-config: 2.1.10
dev-lang/python: 2.6.4-r1, 3.1.2-r3
dev-util/ccache: 2.4-r7
sys-apps/baselayout: 1.12.13
sys-apps/sandbox: 1.6-r2
sys-devel/autoconf: 2.65
sys-devel/automake: 1.11.1
sys-devel/binutils: 2.20.1-r1
sys-devel/gcc: 4.3.4, 4.4.3-r2
sys-devel/gcc-config: 1.4.1
sys-devel/libtool: 2.2.6b
virtual/os-headers: 2.6.30-r1
ACCEPT_KEYWORDS="x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer
-mno-tls-direct-seg-refs"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /var/bind"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d
/etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild
/etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer
-mno-tls-direct-seg-refs"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests distlocks fixpackages news parallel-fetch
protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch"
GENTOO_MIRRORS="http://gentoo.cites.uiuc.edu/pub/gentoo";
LDFLAGS="-Wl,-O1"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
--compress --force --whole-file --delete --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync7.us.gentoo.org/gentoo-portage"
USE="acl acpi apache2 avahi avi bash-completion berkdb bzip2 cdr clamav
cli cracklib crypt cups curl curlwrappers cxx dbus dri encode exif fame
fortran fuse gdbm gnutls gpm hal hardened hardenedphp iconv ieee1394
imagemagick imap imlib innodb java java6 javascript libwww lzo mad
maildir mmap mmx modules mpi mudflap mysql ncurses nls nptl nptlonly
odbc opengl openmp pam pcre pdf perl php posix pppd python readline
reflection resolvconf ruby samba sasl session sharedmem simplexml soap
sockets source spell spl sse sse2 ssl svga sysfs tcl tcltk tcpd tetex
threads tiff tk tokenizer truetype unicode usb verbose vhosts vimsyntax
winbind x86 xml xmlrpc xorg xvmc zlib" ALSA_CARDS="ali5451 als4000
atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371
es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident
usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw
asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug
ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route
share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias
authn_anon authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache dav
dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache
filter headers include info log_config logio mem_cache mime mime_magic
negotiation rewrite setenvif speling status unique_id userdir usertrack
vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev
synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk
hd44780 lb216 lcdm001 mtxorb ncurses text" RUBY_TARGETS="ruby18"
USERLAND="GNU" VIDEO_CARDS="ati" XTABLES_ADDONS="quota2 psd pknock lscan
length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit
sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK,
LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS,
PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
=================================================================
Package Settings
=================================================================
app-emulation/xen-tools-4.0.0 was built with the following:
USE="api debug flask ioemu screen -acm -custom-cflags -doc -hvm -pygrub"
CFLAGS="-fno-strict-overflow"
CXXFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer
-mno-tls-direct-seg-refs -fno-strict-overflow"
LDFLAGS=""
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