Created attachment 350864 [details] gcc-config-logs.tar.bz2 When trying to compile gcc-4.6.3 on my ARM machine (Solidrun CuBox), it fails with: Comparing stages 2 and 3 warning: gcc/cc1plus-checksum.o differs warning: gcc/cc1-checksum.o differs Bootstrap comparison failure! gcc/combine.o differs make[2]: *** [compare] Error 1 make[2]: Leaving directory `/var/tmp/portage/sys-devel/gcc-4.6.3/work/build' make[1]: *** [stage3-bubble] Error 2 make[1]: Leaving directory `/var/tmp/portage/sys-devel/gcc-4.6.3/work/build' make: *** [bootstrap-lean] Error 2 emake failed emerge --info: Portage 2.1.11.50 (default/linux/arm/13.0, gcc-4.6.3, glibc-2.15-r3, 3.6.9-Debian+ armv7l) ================================================================= System uname: Linux-3.6.9-Debian+-armv7l-ARMv7_Processor_rev_5_-v7l-with-gentoo-2.2 KiB Mem: 1028436 total, 203268 free KiB Swap: 1535996 total, 1533392 free Timestamp of tree: Wed, 12 Jun 2013 11:00:01 +0000 ld GNU ld (GNU Binutils) 2.22 app-shells/bash: 4.2_p45 dev-lang/python: 2.7.3-r3, 3.2.3 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.69 sys-devel/automake: 1.11.6, 1.12.6 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.6.3 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="arm" ACCEPT_LICENSE="*" CBUILD="armv7a-hardfloat-linux-gnueabi" CFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -fomit-frame-pointer" CHOST="armv7a-hardfloat-linux-gnueabi" 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 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="-O2" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --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.gentoo.org/gentoo-portage" USE="acl arm bash-completion berkdb bindist bzip2 cli cracklib crypt cxx djvu dri fastcgi fcgi fortran gdbm gif gpm iconv icu idn imlib ipv6 jpeg jpeg2k jpg modules mudflap ncurses nls nptl nptlonly openmp pam pcre png readline session ssl svg system-sqlite tcpd threads tiff truetype unicode vim-syntax xml zlib" 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" 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="en en_US de de_DE" 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="exynos fbdev omap omapfb 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
Comment on attachment 350864 [details] gcc-config-logs.tar.bz2 Please attach the entire build log to this bug report. These files are (probably) unrelated.
Created attachment 350920 [details] Build Log
Created attachment 350922 [details] Disassembly-Diffs
I added the build log, as well as diffs of the disassebly of the three affected files. I noticed that the stage2 files have .debug_info section whereas this section is missing in the stage3 files.
gcc-4.9 is stable now, so throwing away older bugs we don't plan on doing backports for as this should be fixed w/4.9+. please re-open if it's still an issue with 4.9.3+ though.
