Bug 729772 – x11-base/xorg-server-1.20.8-r1 with LTO - ld: .../temp/tests.NAv2Gk.ltrans1.ltrans.o: in function `__wrap_GrabButton': <artificial>:(.text+0x582c): undefined reference to `GrabButton'

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description n05ph3r42 2020-06-26 20:29:51 UTC]

using lto cflag produces build error:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/x11-base/xorg-server-1.20.8-r1/temp/tests.NAv2Gk.ltrans1.ltrans.o: in function `__wrap_GrabButton':
<artificial>:(.text+0x582c): undefined reference to `GrabButton'


Reproducible: Always

Steps to Reproduce:
1. enable lto cflag for xorg
2. emerge x11-base/xorg-server-1.20.8-r1
3. watch at error
Actual Results:  
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/x11-base/xorg-server-1.20.8-r1/temp/tests.NAv2Gk.ltrans1.ltrans.o: in function `__wrap_GrabButton':
<artificial>:(.text+0x582c): undefined reference to `GrabButton'


Expected Results:  
successfull emerge of xorg

emerge --info
Portage 2.3.103 (python 3.7.7-final-0, default/linux/amd64/17.1/desktop, gcc-10.1.0, glibc-2.31-r5, 5.7.6-gentoo_intel x86_64)
=================================================================
System uname: Linux-5.7.6-gentoo_intel-x86_64-Intel-R-_Core-TM-_i7-2860QM_CPU_@_2.50GHz-with-gentoo-2.7
KiB Mem:    16184596 total,   9850364 free
KiB Swap:   15625212 total,  15625212 free
Timestamp of repository gentoo: Fri, 26 Jun 2020 00:45:01 +0000
sh bash 5.0_p17
ld GNU ld (Gentoo 2.34 p4) 2.34.0
ccache version 3.7.10 [disabled]
app-shells/bash:          5.0_p17::gentoo
dev-lang/perl:            5.30.3-r1::gentoo
dev-lang/python:          2.7.18::gentoo, 3.6.10-r2::gentoo, 3.7.7-r2::gentoo, 3.8.3::gentoo, 3.9.0_beta3::gentoo
dev-util/ccache:          3.7.10::gentoo
dev-util/cmake:           3.17.3::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.7::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.20::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r5::gentoo
sys-devel/automake:       1.16.2::gentoo
sys-devel/binutils:       2.34-r1::gentoo
sys-devel/gcc:            10.1.0-r1::gentoo
sys-devel/gcc-config:     2.3.1::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.3::gentoo
sys-kernel/linux-headers: 5.7::gentoo (virtual/os-headers)
sys-libs/glibc:           2.31-r5::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: webrsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-webrsync-delta: true
    sync-webrsync-verify-signature: true

palemoon
    location: /var/lib/layman/palemoon
    sync-type: laymansync
    sync-uri: https://github.com/deu/palemoon-overlay.git
    masters: gentoo
    priority: 50

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe 	-ffast-math 	-fno-trapping-math 	-flto=8 -ffat-lto-objects -fuse-linker-plugin -fdevirtualize-at-ltrans 	-fgraphite-identity 	-fno-semantic-interposition 	-floop-nest-optimize -floop-strip-mine -floop-block -floop-interchange 	-ftree-loop-linear -ftree-loop-distribution -ftree-loop-distribute-patterns -ftree-vectorize 	-feliminate-unused-debug-types 	-fasynchronous-unwind-tables 	-falign-functions=32 -fomit-frame-pointer 	-malign-data=cacheline -mtls-dialect=gnu2 	-march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 	-msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt 	--param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 	--param ssp-buffer-size=32"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /var/lib/i2pd/certificates"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe 	-ffast-math 	-fno-trapping-math 	-flto=8 -ffat-lto-objects -fuse-linker-plugin -fdevirtualize-at-ltrans 	-fgraphite-identity 	-fno-semantic-interposition 	-floop-nest-optimize -floop-strip-mine -floop-block -floop-interchange 	-ftree-loop-linear -ftree-loop-distribution -ftree-loop-distribute-patterns -ftree-vectorize 	-feliminate-unused-debug-types 	-fasynchronous-unwind-tables 	-falign-functions=32 -fomit-frame-pointer 	-malign-data=cacheline -mtls-dialect=gnu2 	-march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 	-msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt 	--param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 	--param ssp-buffer-size=32"
DISTDIR="/usr/portage/distfiles"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs candy cgroup config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news nodoc noinfo noman parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo 	http://ftp.romnet.org/gentoo/ 	http://gentoo.supp.name/ 	http://tux.rainside.sk/gentoo/"
LANG="C"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en ru"
MAKEOPTS="-j8"
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 --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
USE="X a52 aac acl acpi alsa amd64 avx bash-completion berkdb branding bzip2 cairo cdda cdr cli crypt custom-cflags custom-optimization dbus dri dri3 dts dvd dvdr elogind emboss encode exif ffmpeg flac fortran gallium gdbm gif glamor gnome-keyring gpm graphite gstreamer gtk gtk3 hwaccel iconv icu jemalloc jit jpeg jpeg2k jumbo-build lcms libnotify libsamplerate libtirpc llvm lm-sensors lock lto lzma lzo mad matroska mime mmx mmxext mng modemmanager mp3 mp4 mpeg mtp multilib ncurses networkmanager nls nptl ntp ogg opengl openmp pam pango pclmul pcre pdf png policykit popcnt ppds rdesktop readline scrypt sdl seccomp session shenandoah sndfile socks5 sound spell spice split-usr sqlite sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 startup-notification svg system-bzip2 system-ffmpeg system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-libwebp system-llvm system-lua system-sqlite system-webp system-zlib tcpd theora threads thunar tiff truetype udev udisks unicode upower usb uvm v4l vaapi vdpau vorbis vpx vulkan webp wifi wmf wxwidgets x264 xa xattr xcb xml xpm xscreensaver xv xvid xvmc zlib zstd" ABI_X86="64" ADA_TARGET="gnat_2018" 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="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext pclmul popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev synaptics" KERNEL="linux" L10N="en ru" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python3_7" QEMU_SOFTMMU_TARGETS="arm aarch64 x86_64" QEMU_USER_TARGETS="arm aarch64 x86_64" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="intel i965" XFCE_PLUGINS="brightness clock power trash" 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:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Jeroen Roovers (RETIRED) 2020-06-27 04:51:05 UTC]

Please attach the entire build log to this bug report.

[Comment 2 n05ph3r42 2020-06-27 07:30:38 UTC]

build.log (2mb+)
https://www13.zippyshare.com/v/k0zJXhxl/file.html

[Comment 3 n05ph3r42 2020-07-24 09:53:38 UTC]

FYI i tried w/o any extra flags (except lto and some other safe flags), like:

-O2 
-flto=8 -fuse-linker-plugin 
-malign-data=cacheline -mtls-dialect=gnu2 
-march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt

bug persists

[Comment 4 n05ph3r42 2020-07-24 09:55:17 UTC]

build log w/o extra flags
https://www56.zippyshare.com/v/UAI6frqa/file.html

[Comment 5 Matt Turner 2020-07-30 20:19:53 UTC]

Please file upstream bugs for things like this. I'm not interested in fixing it downstream without a fix upstream, and also upload build logs to bugzilla and not to an external site that might go away.

[Comment 6 Matt Turner 2020-12-04 18:28:09 UTC]

*** Bug 758425 has been marked as a duplicate of this bug. ***