Created attachment 358596 [details] gcc-build-logs.tar.bz2 sys-devel/gcc > 4.7.0 wont compile, cc1: internal compiler error: Illegal instruction (libgcc) Hello, I am unable to compile gcc > 4.7.0 on a fresh install. I am running a gentoo linux vm in Xenserver 6.2. The error happens when I add -march=native to the cflags. CPU is Xeon E3-1270 v2. Pasted below are some of the different options I tried and emerge info. The complete gcc-build-logs.tar.bz2 is attached. Below are some of the options I tried: 4.6.3 -> 4.7.3 NO: -march=native NO: -march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-tbm -mno-avx -msse4.2 -msse4.1 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=generic -fno-strict-overflow -fPIE -fstack-protector-all YES: -march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-tbm -mno-avx -msse4.2 -msse4.1 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=generic -fno-strict-overflow -fPIE (remove -fstack-protector-all) YES: 4.6.3 -> 4.7.0 (with -march=native) NO: 4.6.3 -> 4.7.1 (with -march=native) NO: 4.6.3 -> 4.7.2-r1 (with -march=native) NO: 4.6.3 -> 4.7.3 (with -march=native) NO: 4.6.3 -> 4.8.1 (with -march=native) 4.7.3 (without -fstack-protector-all) -> 4.7.3 YES: -march=i686 NO: -O1 (changed from -O2) NO: -march=core-avx-i NO: -march=native NO: -march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx -mno-avx2 -msse4.2 -msse4.1 -mno-lzcnt -mrdrnd -mf16c -mfsgsbase --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=generic -fno-strict-overflow -fPIE -fstack-protector-all (this is what march=native expands to) NO: -march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx -mno-avx2 -msse4.2 -msse4.1 -mno-lzcnt -mrdrnd -mf16c -mfsgsbase --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=generic -fno-strict-overflow -fPIE (remove -fstack-protector-all) YES: 4.7.0 -> 4.7.0 (with -march=native) NO: 4.7.0 -> 4.7.3 (with -march=native) localhost ~ # emerge -pqv '=sys-devel/gcc-4.7.3::gentoo' [ebuild R ] sys-devel/gcc-4.7.3 USE="cxx hardened mudflap nls nptl openmp (-altivec) -doc (-fixed-point) -fortran -gcj -go -graphite -gtk (-libssp) -lto (-multilib) -multislot -nopie -nossp -objc -objc++ -objc-gc -regression-test -vanilla" localhost ~ # emerge --info '=sys-devel/gcc-4.7.3::gentoo' Portage 2.2.1 (hardened/linux/amd64/no-multilib/selinux, gcc-4.7.3, glibc-2.15-r3, 3.10.1-hardened-r1 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.10.1-hardened-r1-x86_64-Intel-R-_Xeon-R-_CPU_E3-1270_V2_@_3.50GHz-with-gentoo-2.2 KiB Mem: 16033796 total, 11884316 free KiB Swap: 916476 total, 916476 free Timestamp of tree: Wed, 11 Sep 2013 22:45:01 +0000 ld GNU ld (GNU Binutils) 2.23.1 app-shells/bash: 4.2_p45 dev-lang/python: 2.7.5, 3.2.5-r1 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.69 sys-devel/automake: 1.12.6 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.6.3, 4.7.3 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.7 (virtual/os-headers) sys-libs/glibc: 2.15-r3 Repositories: gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -fomit-frame-pointer -march=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 -fomit-frame-pointer -march=native" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync metadata-transfer news parallel-fetch preserve-libs protect-owned sandbox selinux sesandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://gentoo.mirrors.easynews.com/linux/gentoo/ http://gentoo.mirrors.hoobly.com/" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/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" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="amd64 bash-completion berkdb bzip2 cli cracklib crypt cxx dri gdbm hardened iconv ipv6 justify mmx modules mudflap ncurses nls nptl offensive open_perms openmp pam pax_kernel pcre perl python readline selinux session sse sse2 ssl tcpd threads unicode urandom vim-syntax 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" APACHE2_MPMS="prefork" 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" 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 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="UTF-8" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby19 ruby18" 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" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= sys-devel/gcc-4.7.3 was built with the following: USE="cxx hardened mudflap nls nptl openmp (selinux) (-altivec) -doc (-fixed-point) -fortran -gcj -go -graphite -gtk (-libssp) -lto (-multilib) -multislot -nopie -nossp -objc -objc++ -objc-gc -regression-test -vanilla" CFLAGS="-O2 -pipe -march=corei7 -mno-movbe -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx -mno-avx2 -mno-lzcnt -mtune=generic -fno-strict-overflow" CXXFLAGS="-O2 -pipe -march=corei7 -mno-movbe -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx -mno-avx2 -mno-lzcnt -mtune=generic -fno-strict-overflow"
cpuinfo from the Guest processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Xeon(R) CPU E3-1270 V2 @ 3.50GHz stepping : 9 microcode : 0x12 cpu MHz : 3500.101 cache size : 8192 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc rep_good nopl pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes f16c rdrand hypervisor lahf_lm fsgsbase smep erms bogomips : 7093.66 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: cpuinfo from the Host processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Xeon(R) CPU E3-1270 V2 @ 3.50GHz stepping : 9 cpu MHz : 3500.098 cache size : 8192 KB physical id : 3 siblings : 1 core id : 0 cpu cores : 1 apicid : 3 initial apicid : 3 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni pclmulqdq vmx est ssse3 sse4_1 sse4_2 x2apic popcnt aes hypervisor ida arat tpr_shadow vnmi flexpriority ept vpid bogomips : 7036.86 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
There is an issue with Xen and -march=native. -march=native naturally implies all flags supported by the CPU, but Xen does not necessarily expose them all to the DomU. In my case, these flags worked for me: CFLAGS="-march=native -mno-avx -O2 -pipe"
(In reply to Michael Palimaka (kensington) from comment #2) > There is an issue with Xen and -march=native. > > -march=native naturally implies all flags supported by the CPU, but Xen does > not necessarily expose them all to the DomU. > > In my case, these flags worked for me: CFLAGS="-march=native -mno-avx -O2 > -pipe" This worked for me. Thanks!
