x86_64-pc-linux-gnu-gcc -Iout/ -Isrc -Os -MD -g -Wall -Wno-strict-aliasing -Wold-style-definition -Wtype-limits -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 -minline-all-stringops -fomit-frame-pointer -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks -ffunction-sections -fdata-sections -fno-common -fno-merge-constants -nopie -fno-stack-protector -DMODE16=0 -DMODESEGMENT=0 -c src/cdrom.c -o out/src/cdrom.o Compile checking out/src/disk.o src/stacks.c: In function 'call16_back': src/stacks.c:139:5: error: 'asm' operand has impossible constraints asm volatile( ^ # head /var/tmp/portage/app-emulation/xen-tools-4.6.0-r5/temp/build.log * Package: app-emulation/xen-tools-4.6.0-r5 * Repository: gentoo * Maintainer: xen@gentoo.org * USE: abi_x86_64 amd64 elibc_glibc hvm kernel_linux pam pygrub python python_targets_python2_7 qemu screen userland_GNU * FEATURES: preserve-libs sandbox userpriv usersandbox # emerge --info Portage 2.2.24 (python 3.4.3-final-0, hardened/linux/amd64, gcc-4.9.3, glibc-2.21-r1, 3.14.51-hardened x86_64) ================================================================= System uname: Linux-3.14.51-hardened-x86_64-Intel-R-_Core-TM-_i7-4770_CPU_@_3.40GHz-with-gentoo-2.2 KiB Mem: 4030148 total, 799120 free KiB Swap: 33554428 total, 33554428 free Timestamp of repository gentoo: Sat, 26 Dec 2015 12:45:01 +0000 sh bash 4.3_p39 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p39::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.10-r1::gentoo, 3.4.3::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.18.4::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.69::gentoo sys-devel/automake: 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.8.4::gentoo, 4.9.3::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.21-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.de.gentoo.org/gentoo-portage priority: -1000 mylay location: /var/portage/mylay masters: gentoo priority: 0 ACCEPT_KEYWORDS="" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -mtune=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -mtune=native" DISTDIR="/var/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo" LANG="en_US.utf8" LDFLAGS="-Wl,--hash-style=gnu -Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/var/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" USE="acl amd64 bash-completion berkdb bzip2 caps cli cracklib crypt cxx device-mapper dri gdbm gmp gnutls hardened iconv icu idn ipv6 justify mmx mmxext modules multilib ncurses nls nptl openmp pam pax_kernel pcre pie readline seccomp session sse sse2 ssl ssp ssse3 unicode urandom vim-syntax xattr xtpax zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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 cgi cgid 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" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" 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" USE_PYTHON="2.7" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
could you provide full build log? I'm also CCing @hardended team，see if they can give any advice.
em.. the full build log is not necessary. as a workaround, you could try combination: sys-firmware/seabios[-binary] + app-emulation/xen-tools[system-seabios], remember to build sys-firmware/seabios with non-hardened toolchain (use gcc-config to switch the profile temporarily).
oh, see bug 566706 for why I suggest sys-firmware/seabios[-binary]
suggestion from hardened team.. #gentoo-hardened: <@Zorry> dlan: try to disable -fstack-check
(In reply to Yixun Lan from comment #4) > suggestion from hardened team.. > > #gentoo-hardened: <@Zorry> dlan: try to disable -fstack-check Please tell me how can I do this? I'm not good enough in software compiling to do it without any instruction in such big packet as xen. I would like to touch only xen, not any other software.
(In reply to cyberbat from comment #5) > Please tell me how can I do this? I'm not good enough in software compiling > to do it without any instruction in such big packet as xen. I would like to > touch only xen, not any other software. I barely have some ideas here (haven't tested! not have hardened system here) 1) the ideal approach: still using hardened toolchain, only add -fno-stack-check flag to files affected (src/stacks.c) 2) add -fno-stack-check to global cflags 3) switch to vanilla toolchain
Created attachment 421928 [details, diff] seabios patch Disable -fstack-check in seabios
Created attachment 422996 [details, diff] working patch for seabios in xen
(In reply to Magnus Granberg from comment #7) > Created attachment 421928 [details, diff] [details, diff] > seabios patch > > Disable -fstack-check in seabios Seems that it resolves the issue
sys-firmware/seabios is maintained by Cardoe
I've pushed this patch to portage tree, please try xen-tools-4.6.1 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3bfcf0499d0d3a4a3808d67106f8a17cdc53da13
