Causes all compilations where -ffast-math is used to error out like this: configure:21091: x86_64-pc-linux-gnu-gcc -o conftest -O20 -ffast-math -fsigned-char -O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -mtune=core2 -pipe -Wall -ggdb -Wl,--as-needed conftest.c >&5 /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/crtfastmath.o:(.ctors+0x0): undefined reference to `no symbol' /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/crtfastmath.o:(.eh_frame+0x20): undefined reference to `no symbol' collect2: ld returned 1 exit status Libogg is the fastest way to test this. Will be testing my CFLAGS to try and narrow this down. Using this bug as a whiteboard till then. I've tried rebuilding world, but no change.
Created attachment 207641 [details] Initial state of affairs CFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -mtune=core2 -pipe -Wall -ggdb" CXXFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -mtune=core2 -pipe -Wall -ggdb"
Created attachment 207642 [details] broken crtfastmath.o
Created attachment 207648 [details] working crtfastmath.o from 4.4.0 binpkg
readelf -s output from broken crtfastmath.o Symbol table '.symtab' contains 9 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 SECTION LOCAL DEFAULT 1 2: 0000000000000000 0 SECTION LOCAL DEFAULT 2 3: 0000000000000000 0 SECTION LOCAL DEFAULT 3 4: 0000000000000000 0 SECTION LOCAL DEFAULT 4 5: 0000000000000000 0 SECTION LOCAL DEFAULT 6 6: 0000000000000000 0 SECTION LOCAL DEFAULT 7 7: 0000000000000000 0 SECTION LOCAL DEFAULT 8 8: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND readelf -s from working crtfastmath.o: Symbol table '.symtab' contains 8 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 SECTION LOCAL DEFAULT 1 2: 0000000000000000 0 SECTION LOCAL DEFAULT 2 3: 0000000000000000 0 SECTION LOCAL DEFAULT 3 4: 0000000000000000 0 SECTION LOCAL DEFAULT 4 5: 0000000000000000 0 SECTION LOCAL DEFAULT 6 6: 0000000000000000 0 SECTION LOCAL DEFAULT 7 7: 0000000000000000 0 SECTION LOCAL DEFAULT 8
Diff between readelf -a from working (4.4.0) to broken (4.4.2) --- 4.4.0 2009-10-20 11:51:20.000000000 +0200 +++ 4.4.2 2009-10-20 11:51:29.000000000 +0200 @@ -30,52 +30,53 @@ 0000000000000000 0000000000000000 WA 0 0 4 [ 3] .bss NOBITS 0000000000000000 00000054 0000000000000000 0000000000000000 WA 0 0 4 [ 4] .ctors PROGBITS 0000000000000000 00000058 0000000000000008 0000000000000000 WA 0 0 8 - [ 5] .rela.ctors RELA 0000000000000000 00000518 + [ 5] .rela.ctors RELA 0000000000000000 00000530 0000000000000018 0000000000000018 11 4 8 [ 6] .comment PROGBITS 0000000000000000 00000060 - 0000000000000020 0000000000000000 0 0 1 + 0000000000000020 0000000000000001 MS 0 0 1 [ 7] .note.GNU-stack PROGBITS 0000000000000000 00000080 0000000000000000 0000000000000000 0 0 1 [ 8] .eh_frame PROGBITS 0000000000000000 00000080 0000000000000030 0000000000000000 A 0 0 8 - [ 9] .rela.eh_frame RELA 0000000000000000 00000530 + [ 9] .rela.eh_frame RELA 0000000000000000 00000548 0000000000000018 0000000000000018 11 8 8 [10] .shstrtab STRTAB 0000000000000000 000000b0 0000000000000060 0000000000000000 0 0 1 [11] .symtab SYMTAB 0000000000000000 00000450 - 00000000000000c0 0000000000000018 12 8 8 - [12] .strtab STRTAB 0000000000000000 00000510 + 00000000000000d8 0000000000000018 12 8 8 + [12] .strtab STRTAB 0000000000000000 00000528 0000000000000001 0000000000000000 0 0 1 Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings) I (info), L (link order), G (group), x (unknown) O (extra OS processing required) o (OS specific), p (processor specific) There are no section groups in this file. There are no program headers in this file. -Relocation section '.rela.ctors' at offset 0x518 contains 1 entries: +Relocation section '.rela.ctors' at offset 0x530 contains 1 entries: Offset Info Type Sym. Value Sym. Name + Addend -000000000000 000100000001 R_X86_64_64 0000000000000000 .text + 0 +000000000000 000800000001 R_X86_64_64 0000000000000000 <null> + 0 -Relocation section '.rela.eh_frame' at offset 0x530 contains 1 entries: +Relocation section '.rela.eh_frame' at offset 0x548 contains 1 entries: Offset Info Type Sym. Value Sym. Name + Addend -000000000020 000100000002 R_X86_64_PC32 0000000000000000 .text + 0 +000000000020 000800000002 R_X86_64_PC32 0000000000000000 <null> + 0 There are no unwind sections in this file. -Symbol table '.symtab' contains 8 entries: +Symbol table '.symtab' contains 9 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 SECTION LOCAL DEFAULT 1 2: 0000000000000000 0 SECTION LOCAL DEFAULT 2 3: 0000000000000000 0 SECTION LOCAL DEFAULT 3 4: 0000000000000000 0 SECTION LOCAL DEFAULT 4 5: 0000000000000000 0 SECTION LOCAL DEFAULT 6 6: 0000000000000000 0 SECTION LOCAL DEFAULT 7 7: 0000000000000000 0 SECTION LOCAL DEFAULT 8 + 8: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND No version information found in this file.
toolchain ninjas: crtfastmath.o is broken on my system after I did a world recompile the 17th of October. I've just tried re-re-compiling world, but no luck. Characteristics of the previously working system (gleaned from genlop output): Binutils-2.19.1-r1 gcc-4.4.1 CFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -pipe -Wall -ggdb" Known to be broken after world re-compile: Binutils-2.19.1-r1 Binutils-2.20 gcc-4.4.1 gcc-4.4.2 CFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -pipe -Wall -ggdb" CFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -pipe -Wall" CFLAGS="-O2 -pipe -Wall" The problem seems to be that some elf stuff in crtfastmath.o is done wrong. I have a working crtfastmath.o from a 4.4.0 binpkg which fixes the problem if I swap that out for the broken one. That and the broken one are attached to this bug report along with readelf output. This stumps me. Any input appreciated. emerge --info from broken system: Portage 2.2_rc46 (default/linux/amd64/10.0, gcc-4.4.2, glibc-2.10.1-r0, 2.6.30.5 x86_64) ================================================================= System uname: Linux-2.6.30.5-x86_64-Intel-R-_Core-TM-2_Quad_CPU_Q9550_@_2.83GHz-with-gentoo-2.0.1 Timestamp of tree: Mon, 19 Oct 2009 21:15:01 +0000 app-shells/bash: 4.0_p33 dev-java/java-config: 2.1.9-r1 dev-lang/python: 2.6.3 dev-util/cmake: 2.6.4-r3 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.5.2 sys-apps/sandbox: 2.1 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.9.6-r2, 1.10.2, 1.11 sys-devel/binutils: 2.20 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="amd64 ~amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -pipe -Wall -ggdb" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /var/bind /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-O2 -march=core2 -mcx16 -msahf --param l1-cache-size=32 --param l1-cache-line-size=64 -pipe -Wall -ggdb" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests buildpkg distlocks fixlafiles fixpackages installsources multilib-strict news parallel-fetch protect-owned sandbox sfperms splitdebug strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS=" ftp://ftp.klid.dk/gentoo/ http://gentoo.osuosl.org/ http://gentoo.oregonstate.edu" LANG="en_US.utf8" LC_ALL="en_US.utf8" LDFLAGS="-Wl,--as-needed" LINGUAS="en da" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" PORTAGE_COMPRESS="lzma" PORTAGE_COMPRESS_FLAGS="--best" 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" PORTDIR_OVERLAY="/usr/local/portage/layman/dirtyepic /home/pa/loki_overlay /home/pa/dotnet-overlay /home/pa/poppler-overlay /home/pa/sekrit-poverlay" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="3dnow 3dnowext X a52 aac acpi aiglx aim alsa amarok amd64 archive authdaemond avahi bash-completion berkdb bidi bzip2 cairo cdda cddb cdparanoia cdr cdrtools cgi cjk cleartype cli consolekit cpudetection cracklib crypt css cups curl dbus dirac directfb djbfft djvu dri dts dvd dvdr dvdread encode evdev exif fam fastcgi fbcon ffmpeg firefox flac fontconfig fortran ftp gadu gif glib gnome gnutls gphoto2 gpm graphviz gstreamer gtk hal hbci iconv icq icu idea ieee1394 imagemagick imap imlib isdnlog jabber java javascript jbig jpeg jpeg2k kdeenablefinal lcd libnotify logitech-mouse logrotate lzma lzo mad maildir matroska mbox metric midi mikmod mime mmx mmxext mng modules mono moznopango mp3 mp4 mpeg mplayer msn mudflap multilib musepack ncurses network-cron nls nocd nptl nptlonly objc objc++ objc-gc offensive ogg openal openexr opengl openmp oscar pam pcre pdf perl php png pop ppds pppd python qt3support qt4 quicktime readline reflection rle sasl schroedinger sdl sensord session shorten slang smime sms soup speex spell spl sse sse2 ssl ssse3 svg sysfs t1lib tcpd texteffect theora threads tiff translator truetype unicode usb vcd vorbis wavpack wmf wxwindows x264 xanim xcb xface xfce xine xml xmlrpc xorg xscreensaver xulrunner xv xvid xvmc yahoo zeroconf zip zlib" 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" 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" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en da" USERLAND="GNU" VIDEO_CARDS="vesa i810 intel" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_RSYNC_EXTRA_OPTS
This looks like a duplicate of bug #288977. Do you have FEATURES="INSTALLSOURCES" enabled?
You're right. I only searched for ffast-math. Could've saved me a lot of trouble. *** This bug has been marked as a duplicate of bug 288977 ***
