libmovtar fail to compile when CFLAGS is >"-O1" Reproducible: Always Steps to Reproduce: 1.CFLAGS="-O2" 2.emerge libmovtar 3. Actual Results: movtar_play.o(.text+0x258): In function `ycc_rgb16_convert_mmx': : undefined reference to `te0' movtar_play.o(.text+0x25f): In function `ycc_rgb16_convert_mmx': : undefined reference to `te0' movtar_play.o(.text+0x27a): In function `ycc_rgb16_convert_mmx': : undefined reference to `te1' movtar_play.o(.text+0x281): In function `ycc_rgb16_convert_mmx': : undefined reference to `te2' movtar_play.o(.text+0x2d1): In function `ycc_rgb16_convert_mmx': : undefined reference to `te1' movtar_play.o(.text+0x2d8): In function `ycc_rgb16_convert_mmx': : undefined reference to `te2' movtar_play.o(.text+0x364): In function `ycc_rgb16_convert_mmx': : undefined reference to `shiftmask' movtar_play.o(.text+0x378): In function `ycc_rgb16_convert_mmx': : undefined reference to `shiftmask' collect2: ld returned 1 exit status Expected Results: compile :) Portage 2.0.51.22-r2 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r1, 2.6.10-cko3-jb.r6 i686) ================================================================= System uname: 2.6.10-cko3-jb.r6 i686 Intel(R) Pentium(R) M processor 1500MHz Gentoo Base System version 1.6.13 ccache version 2.3 [disabled] dev-lang/python: 2.3.5, 2.4.1-r1 sys-apps/sandbox: 1.2.11 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d" CXXFLAGS="-O2" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://www.die.unipd.it/pub/Linux/distributions/gentoo-sources/ http://darkstar.ist.utl.pt/gentoo/ http://ftp.easynet.nl/mirror/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X aalib acpi alsa avi bash-completion bitmap-fonts bluetooth bzlib cdr crypt cups dga divx4linux doc dv dvd dvdread eds emboss encode ethereal evo exif fbcon ffmpeg foomaticdb ftp gif gnome gphoto2 gpm gtk gtk2 hal icq jabber java javascript jpeg lirc lm_sensors mac mad maildir mikmod mime mmx mp3 mpeg ncurses nls nptl nptlonly offensive ogg oggvorbis opengl pam pcmcia pda pdflib perl png pnp posix ppds python quicktime readline samba sdl shared sockets spell sse ssl svg sysvipc tiff truetype truetype-fonts trusted type1-fonts unicode usb v4l vcd vorbis wifi x86 xine xml xml2 xmms xosd xpm xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
ok, i found the problem: -funit-at-a-time. compiling with: CFLAGS="$CFLAGS -fno-unit-at-a-time" emerge libmovtar works... so i think ebuild should filter this flag. bye
Created attachment 65363 [details, diff] patch that adds flag-o-matic and -fno-unit-at-a-time to ebuild this is one of my first patches, comments welcomed.
compiles OK with patch ( http://bugs.gentoo.org/attachment.cgi?id=65363 ) any comments welcomed as this is one of my first patches. Portage 2.0.51.22-r2 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r1, 2.6.12-gentoo-r6 i686) ================================================================= System uname: 2.6.12-gentoo-r6 i686 Intel(R) Pentium(R) 4 CPU 2.53GHz Gentoo Base System version 1.6.13 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] ccache version 2.3 [disabled] dev-lang/python: 2.3.5 sys-apps/sandbox: 1.2.11 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer -fforce-addr -falign-functions=16 -falign-jumps=16 -falign-loops=16 -falign-labels=1 -fprefetch-loop-arrays -maccumulate-outgoing-args -funroll-all-loops -freorder-blocks -fcaller-saves -fno-loop-optimize -fno-signaling-nans" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer -fforce-addr -falign-functions=16 -falign-jumps=16 -falign-loops=16 -falign-labels=1 -fprefetch-loop-arrays -maccumulate-outgoing-args -funroll-all-loops -freorder-blocks -fcaller-saves -fno-loop-optimize -fno-signaling-nans" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig candy digest distcc distlocks fixpackages sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.llarian.net/ http://gentoo.osuosl.org/ http://gentoo.chem.wisc.edu/gentoo/ http://gentoo.mirrors.pair.com/ http://gentoo.ccccom.com http://gentoo.netnitco.net http://mirrors.acm.cs.rpi.edu/gentoo/ http://mirror.datapipe.net/gentoo http://www.gigaload.org/gentoo.org/ ftp://ftp.ucsb.edu/pub/mirrors/linux/gentoo/" MAKEOPTS="-j6" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp/portage" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local" SYNC="rsync://portageproxy/gentoo-portage" USE="x86 X aalib adns alsa apm arts avi bash-completion berkdb bitmap-fonts bonobo cdr crypt cups curl directfb dts eds emboss encode esd fam flac foomaticdb fortran gd gdbm gif gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile imagemagick imlib ipv6 jack java jikes jpeg junit kde ldap libg++ libwww mad mikmod mmx motif mozilla mp3 mpeg mysql nas ncurses nls ogg oggvorbis opengl oss pam pdflib perl png python qt quicktime readline ruby samba scanner sdl slang snmp speex spell sqlite sse sse2 ssl svga tcltk tcpd tiff truetype truetype-fonts type1-fonts unicode vorbis xine xml xml2 xmms xv zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
is the problematic flag enabled by the -O2 directive? this would also seem to be a gcc3.4-only problem, as my system was previously built (cleanly) with gcc 3.3.6. the two other reporters also have gcc 3.4.4 systems. im getting the error with this system: Portage 2.0.51.22-r2 (default-linux/x86/2005.1, gcc-3.4.4, glibc-2.3.5-r1, 2.6.1 2-morph7 i686) ================================================================= System uname: 2.6.12-morph7 i686 Mobile Intel(R) Celeron(R) CPU 2.20GHz Gentoo Base System version 1.6.13 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disable d] ccache version 2.3 [enabled] dev-lang/python: 2.3.5 sys-apps/sandbox: 1.2.11 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share /config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/ mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/ distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X a52 aac aalib acpi aim alsa arts avi berkdb bitmap-fonts browserplugi n bzip2 cd cdr crypt css cups curl dbus divx4linux dv dvd dvdread eds emboss enc ode esd fam fame firefox flac foomaticdb fortran gdbm gif gimpprint gnome gpm gs treamer gtk gtk2 gtkhtml hal imagemagick imlib ipv6 java javascript jikes jpeg l dap libcaca libg++ libwww mad mikmod mjpeg mmx mng motif mozilla mp3 mpeg ncurse s nls nptl nsplugin offensive ogg oggvorbis opengl oss pam pcmcia pdflib perl pi c png posix python quicktime readline sdl spell sse sse2 ssl svga tcltk tcpd the ora tiff truetype truetype-fonts type1-fonts unicode usb vorbis win32codecs xine xml2 xmms xv xvid xvmc zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
patch works for me
I had the same problem. CFLAGS="$CFLAGS -fno-unit-at-a-time" emerge libmovtar works for me
Confirmed with gcc-3.4.4; fix works. Re comment 2: please use diff -u (unified diff format).
This also causes failures on gcc4. Instead of appending the -fno-unit-at-a-time flag, I fixed the asm code. The fix is in the tree.
