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Bug 726062 - >=sys-devel/gcc-9.2: prelinking with sys-devel/prelink causes segfaults with recent versions of GCC
Summary: >=sys-devel/gcc-9.2: prelinking with sys-devel/prelink causes segfaults with ...
Status: CONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Toolchain Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-05-29 10:01 UTC by Pavel
Modified: 2021-08-05 09:02 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
gcc-blacklist.conf (toolchain.conf,78 bytes, text/plain)
2020-06-01 11:14 UTC, Pavel
Details

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Description Pavel 2020-05-29 10:01:30 UTC
> (gdb) run
> Starting program: /usr/bin/gcc 
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000311e83dcc6 in ____strtoll_l_internal () from /lib64/libc.so.6



Reproducible: Always




I recommend to add gcc, and all toolchain packages to prelink.conf.d blacklist despite the performance impact.

Gcc itself employs a lot of hackery to reduce the impact of repeated invocations. I double Gentoo will have enough resources to provide patches for every breakage that can come out from that.

Please see also https://bugs.gentoo.org/579374
Comment 1 Jonas Stein gentoo-dev 2020-05-31 20:56:53 UTC
I have read your report several times, but I do not understand it.

Please join IRC #gentoo and ask here, how to collect all information for a bug ticket. Then open a new ticket.
Write the name of the broken package in the summary. Add logs.
Comment 2 Pavel 2020-06-01 07:18:10 UTC
(In reply to Jonas Stein from comment #1)
> I have read your report several times, but I do not understand it.
> 
> Please join IRC #gentoo and ask here, how to collect all information for a
> bug ticket. Then open a new ticket.
> Write the name of the broken package in the summary. Add logs.

Hello Jonas, when are you going to be at #gentoo?
Comment 3 Pavel 2020-06-01 11:08:09 UTC
emerge --info 
Portage 2.3.99 (python 3.7.7-final-0, default/linux/amd64/17.1/no-multilib, gcc-9.3.0, glibc-2.30-r8, 5.6.7-gentoo-x86_64 x86_64)
=================================================================
System uname: Linux-5.6.7-gentoo-x86_64-x86_64-Intel-R-_Core-TM-_i5-8250U_CPU_@_1.60GHz-with-gentoo-2.6
KiB Mem:     7744096 total,   2761552 free
KiB Swap:   16777212 total,  16493024 free
Timestamp of repository gentoo: Wed, 20 May 2020 11:00:01 +0000
Head commit of repository gentoo: 0db03d45297ba0881a5a0ecd7dd97e08e3f8ecf6
sh bash 5.0_p17
ld GNU ld (Gentoo 2.33.1 p2) 2.33.1
distcc 3.3.3 x86_64-pc-linux-gnu [disabled]
ccache version 3.7.7 [enabled]
app-shells/bash:          5.0_p17::gentoo
dev-java/java-config:     2.2.0-r4::gentoo
dev-lang/perl:            5.30.1::gentoo
dev-lang/python:          2.7.18::gentoo, 3.6.10-r2::gentoo, 3.7.7-r2::gentoo, 3.8.2-r2::gentoo
dev-util/ccache:          3.7.7-r1::gentoo
dev-util/cmake:           3.16.5::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.6-r1::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.13::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r4::gentoo
sys-devel/automake:       1.13.4-r2::gentoo, 1.16.1-r1::gentoo
sys-devel/binutils:       2.33.1-r1::gentoo
sys-devel/gcc:            9.3.0::gentoo
sys-devel/gcc-config:     2.2.1::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 5.4::gentoo (virtual/os-headers)
sys-libs/glibc:           2.30-r8::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: no
    sync-rsync-verify-max-age: 24
    sync-rsync-extra-opts: 

bombo82
    location: /var/lib/layman/bombo82
    sync-type: laymansync
    sync-uri: https://github.com/bombo82/bombo82-overlay.git
    masters: gentoo
    priority: 50

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

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

tlp
    location: /var/lib/layman/tlp
    sync-type: laymansync
    sync-uri: git://github.com/dywisor/tlp-portage.git
    masters: gentoo
    priority: 50

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O3 -pipe -march=skylake -mabm -msgx -mavx256-split-unaligned-load -mavx256-split-unaligned-store -fomit-frame-pointer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
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="-O3 -pipe -march=skylake -mabm -msgx -mavx256-split-unaligned-load -mavx256-split-unaligned-store -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--load-average 7.5"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN 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 ccache cgroup config-protect-if-modified distlocks ebuild-locks fixlafiles installsources ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.ps.kz/gentoo/pub"
LANG="en_GB.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-fuse-ld=gold"
MAKEOPTS="-j4"
PKGDIR="/usr/portage/packages"
PORTAGE_BINHOST="http://packages.gentooexperimental.org/packages/amd64-stable/"
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="10bit X aac acl alsa amd64 appindicator archive bash-completion berkdb bluetooth bluez branding brotli bzip2 caps cjk cli colord cron crypt cups dbus dell dhcpcd dri dri3 drm dundee egl elogind eselect-ldso evdev fbcondecor ffmpeg fftw fontconfig fortran fuse gbm gdbm github gnome-keyring gpm gtk gtk-doc gtk3 harfbuzz hostonly http2 iconv icu idn infinality initramfs ipv6 iwd jimtcl jpeg keybinder layers lcms leaps_timezone libass libcanberra libdrm libmpv libnotify libproxy libsecret libtirpc lm-sensors lm_sensors metric modemmanager mp3 mtp ncurses nls nptl ocl-icd ocl20 ofono openal opencl opengl openmp openssl opus p2p pam pcre png policykit pulseaudio quesoglc readline rule-generator seccomp snapshot spell split-usr ssl startup-notification sync-plugin-portage system-icu tcpd tdb theora threads truetype udev udisks uefi unicode upnp upower uxa v4l vaapi vector-icons vorbis vulkan webp wired wireguard wispr wnck wps x264 x265 xa xattr xcb xfce xfconf xinerama xv xvmc zeroconf zlib zsh-completion" 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="mmx mmxext sse sse2 aes avx avx2 f16c fma3 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="libinput evdev wacom" KERNEL="linux" L10N="en-GB en zh-CN zh-HK zh-TW zh-SG" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="BPF X86" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2" POSTGRES_TARGETS="postgres10 postgres11 postgres12" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python3_7" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="intel i915 i965 iris 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:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Comment 4 Pavel 2020-06-01 11:13:39 UTC
Recent version of GCC segfault when prelinked.

I noticed the regression starting with GCC 9.2.

Steps to reproduce:
1. emerge sys-devel/gcc:9.2
2. emerge sys-devel/prelink
3. run cron script with default settings /etc/cron.daily/prelink
4. gcc will segfault on start

I can confirm that this can be fixed by a simple workaround, by placing a blacklist rule with GCC executables into /etc/prelink.conf.d/. Prelink rule attached.

I recommend including this rule into future GCC ebuilds, like dev-libs/nss or sys-apps/portage does.
Comment 5 Pavel 2020-06-01 11:14:30 UTC
Created attachment 643010 [details]
gcc-blacklist.conf

Blacklist rule
Comment 6 Sergei Trofimovich (RETIRED) gentoo-dev 2020-06-01 18:05:31 UTC
I would prefer not to blacklist gcc as it's a reasonable simple program to prelink. If it does not work then prelink is of little use on your system.

Can you also post package-specific use flags reported by 'emerge --info sys-devel/gcc'? I'll try to reproduce locally and check why it crashes.
Comment 7 Sergei Trofimovich (RETIRED) gentoo-dev 2020-06-01 18:19:02 UTC
Also, while at it you are using sys-devel/prelink-20151030, right?
Comment 8 Pavel 2020-06-03 10:02:01 UTC
Yes, the only prelink ebuild currently on portage

----

emerge --info sys-devel/gcc
Portage 2.3.99 (python 3.7.7-final-0, default/linux/amd64/17.1/no-multilib, gcc-9.3.0, glibc-2.30-r8, 5.6.7-gentoo-x86_64 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-5.6.7-gentoo-x86_64-x86_64-Intel-R-_Core-TM-_i5-8250U_CPU_@_1.60GHz-with-gentoo-2.6
KiB Mem:     7744096 total,    969136 free
KiB Swap:   16777212 total,  16078104 free
Timestamp of repository gentoo: Wed, 20 May 2020 11:00:01 +0000
Head commit of repository gentoo: 0db03d45297ba0881a5a0ecd7dd97e08e3f8ecf6
sh bash 5.0_p17
ld GNU ld (Gentoo 2.33.1 p2) 2.33.1
distcc 3.3.3 x86_64-pc-linux-gnu [disabled]
ccache version 3.7.7 [enabled]
app-shells/bash:          5.0_p17::gentoo
dev-java/java-config:     2.2.0-r4::gentoo
dev-lang/perl:            5.30.1::gentoo
dev-lang/python:          2.7.18::gentoo, 3.6.10-r2::gentoo, 3.7.7-r2::gentoo, 3.8.2-r2::gentoo
dev-util/ccache:          3.7.7-r1::gentoo
dev-util/cmake:           3.16.5::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.6-r1::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.13::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r4::gentoo
sys-devel/automake:       1.13.4-r2::gentoo, 1.16.1-r1::gentoo
sys-devel/binutils:       2.33.1-r1::gentoo
sys-devel/gcc:            9.3.0::gentoo
sys-devel/gcc-config:     2.2.1::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 5.4::gentoo (virtual/os-headers)
sys-libs/glibc:           2.30-r8::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: no
    sync-rsync-extra-opts: 
    sync-rsync-verify-max-age: 24

bombo82
    location: /var/lib/layman/bombo82
    sync-type: laymansync
    sync-uri: https://github.com/bombo82/bombo82-overlay.git
    masters: gentoo
    priority: 50

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

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

tlp
    location: /var/lib/layman/tlp
    sync-type: laymansync
    sync-uri: git://github.com/dywisor/tlp-portage.git
    masters: gentoo
    priority: 50

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O3 -pipe -march=skylake -mabm -msgx -mavx256-split-unaligned-load -mavx256-split-unaligned-store -fomit-frame-pointer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
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="-O3 -pipe -march=skylake -mabm -msgx -mavx256-split-unaligned-load -mavx256-split-unaligned-store -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--load-average 7.5"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN 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 ccache cgroup config-protect-if-modified distlocks ebuild-locks fixlafiles installsources ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.ps.kz/gentoo/pub"
LANG="en_GB.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-fuse-ld=gold"
MAKEOPTS="-j4"
PKGDIR="/usr/portage/packages"
PORTAGE_BINHOST="http://packages.gentooexperimental.org/packages/amd64-stable/"
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="10bit X aac acl alsa amd64 appindicator archive bash-completion berkdb bluetooth bluez branding brotli bzip2 caps cjk cli colord cron crypt cups dbus dell dhcpcd dri dri3 drm dundee egl elogind eselect-ldso evdev fbcondecor ffmpeg fftw fontconfig fortran fuse gbm gdbm github gnome-keyring gpm gtk gtk-doc gtk3 harfbuzz hostonly http2 iconv icu idn infinality initramfs ipv6 iwd jimtcl jpeg keybinder layers lcms leaps_timezone libass libcanberra libdrm libmpv libnotify libproxy libsecret libtirpc lm-sensors lm_sensors metric modemmanager mp3 mtp ncurses nls nptl ocl-icd ocl20 ofono openal opencl opengl openmp openssl opus p2p pam pcre png policykit pulseaudio quesoglc readline rule-generator seccomp snapshot spell split-usr ssl startup-notification sync-plugin-portage system-icu tcpd tdb theora threads truetype udev udisks uefi unicode upnp upower uxa v4l vaapi vector-icons vorbis vulkan webp wired wireguard wispr wnck wps x264 x265 xa xattr xcb xfce xfconf xinerama xv xvmc zeroconf zlib zsh-completion" 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="mmx mmxext sse sse2 aes avx avx2 f16c fma3 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="libinput evdev wacom" KERNEL="linux" L10N="en-GB en zh-CN zh-HK zh-TW zh-SG" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="BPF X86" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2" POSTGRES_TARGETS="postgres10 postgres11 postgres12" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python3_7" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="intel i915 i965 iris 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:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

=================================================================
                        Package Settings
=================================================================

sys-devel/gcc-9.3.0::gentoo was built with the following:
USE="(cxx) fortran (multilib) nls nptl openmp pch (pie) sanitize ssp vtv (-ada) (-altivec) -d -debug -doc (-fixed-point) -go -graphite (-hardened) (-jit) (-libssp) -lto -objc -objc++ -objc-gc -pgo -systemtap -test -vanilla"
CFLAGS="-pipe -O2"
CXXFLAGS="-pipe -O2"
FEATURES="xattr pid-sandbox ipc-sandbox protect-owned merge-sync distlocks multilib-strict unmerge-logs fixlafiles assume-digests sfperms unmerge-orphans network-sandbox qa-unresolved-soname-deps strict binpkg-logs userpriv preserve-libs ebuild-locks parallel-fetch binpkg-dostrip sandbox userfetch usersandbox usersync buildpkg config-protect-if-modified binpkg-docompress unknown-features-warn"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
Comment 9 Sergei Trofimovich (RETIRED) gentoo-dev 2020-06-03 22:42:29 UTC
Reproduced locally:

"""
# prelink -uamR
# LANG=C gcc gt.c -o glibc-test
sf ~ # cat gt.c
int main(){}
# LANG=C gcc gt.c -o glibc-test

# prelink -amR
# LANG=C gcc gt.c -o glibc-test
gcc: internal compiler error: Segmentation fault signal terminated program collect2
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
"""
Comment 10 Sergei Trofimovich (RETIRED) gentoo-dev 2020-06-06 13:21:04 UTC
My crash is slightly diffferent:

"""
# gdb --quiet /usr/libexec/gcc/x86_64-pc-linux-gnu/9.3.0/collect2 core.687273
Reading symbols from /usr/libexec/gcc/x86_64-pc-linux-gnu/9.3.0/collect2...
Reading symbols from /usr/lib/debug//usr/libexec/gcc/x86_64-pc-linux-gnu/9.3.0/collect2.debug...
[New LWP 687273]
Core was generated by `/usr/libexec/gcc/x86_64-pc-linux-gnu/9.3.0/collect2 -plugin /usr/libexec/gcc/x8'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00000032e6a32002 in _nl_postload_ctype () at lc-ctype.c:103
103	  __ctype_b = current (uint16_t, CLASS, 128);
(gdb) bt
#0  0x00000032e6a32002 in _nl_postload_ctype () at lc-ctype.c:103
#1  0x00000032e6a2fbc8 in setdata (data=0x32e6bb34e0 <_nl_C_LC_CTYPE>, category=0) at setlocale.c:214
#2  __GI_setlocale (locale=0x46e217 "", category=0) at setlocale.c:453
#3  __GI_setlocale (category=category@entry=0, locale=locale@entry=0x46e217 "") at setlocale.c:219
#4  0x0000000000416f7d in gcc_init_libintl () at /usr/src/debug/sys-devel/gcc-9.3.0/gcc-9.3.0/gcc/intl.c:52
#5  0x00000000004047b8 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/sys-devel/gcc-9.3.0/gcc-9.3.0/gcc/collect2.c:978
"""

On a related note prelink-99999999 behaves even worse as it's not reversible.
Comment 11 dE 2021-08-05 09:02:32 UTC
Confirmed.

prelink: /usr/x86_64-pc-linux-gnu/gcc-bin/11.2.0/x86_64-pc-linux-gnu-cpp: Could not parse `lookup 0x00007ffd39197000 0xfffffffffff9b7a0 -> 0x00007ffd39197000 0x00000000000008d0 /0 __vdso_clock_gettime'

Looks like we need a prelink-ng.

Portage 3.0.21 (python 3.9.6-final-0, default/linux/amd64/17.1/desktop/plasma/systemd, gcc-11.2.0, glibc-2.33-r1, 4.9.277-gentoo x86_64)
=================================================================
System uname: Linux-4.9.277-gentoo-x86_64-Intel-R-_Core-TM-_i7-3770_CPU_@_3.40GHz-with-glibc2.33
KiB Mem:    16328176 total,   4555540 free
KiB Swap:    5242876 total,   5242876 free
Timestamp of repository gentoo: Sun, 01 Aug 2021 00:45:01 +0000
Head commit of repository gentoo: f4284de0fc07b22e7c4075c83b75304feca9011c
sh bash 5.1_p8
ld GNU gold (Gentoo 2.35.2 p1 2.35.2) 1.16
ccache version 4.3 [enabled]
app-shells/bash:          5.1_p8::gentoo
dev-java/java-config:     2.3.1::gentoo
dev-lang/perl:            5.34.0::gentoo
dev-lang/python:          2.7.18_p11::gentoo, 3.8.11::gentoo, 3.9.6::gentoo
dev-lang/rust:            1.53.0::gentoo
dev-util/ccache:          4.3-r2::gentoo
dev-util/cmake:           3.18.5::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.7-r3::gentoo
sys-apps/sandbox:         2.24::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r5::gentoo
sys-devel/automake:       1.16.3-r1::gentoo
sys-devel/binutils:       2.35.2::gentoo
sys-devel/gcc:            10.3.0::gentoo, 11.2.0::gentoo
sys-devel/gcc-config:     2.4::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.3::gentoo
sys-kernel/linux-headers: 5.10::gentoo (virtual/os-headers)
sys-libs/glibc:           2.33-r1::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-metamanifest: no
    sync-rsync-verify-jobs: 1
    sync-rsync-extra-opts: 
    sync-rsync-verify-max-age: 24

mysql
    location: /var/lib/layman/mysql
    masters: gentoo
    priority: 50

oubliette
    location: /var/lib/layman/oubliette
    masters: gentoo
    priority: 50

posativ
    location: /var/lib/layman/posativ
    masters: gentoo
    priority: 50

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -fomit-frame-pointer -floop-interchange -floop-strip-mine -floop-block -fgraphite-identity -ftree-loop-distribution -O3 -pipe -flto=8 -fuse-linker-plugin -ffat-lto-objects"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/bind"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.4/ext-active/ /etc/php/cgi-php7.4/ext-active/ /etc/php/cli-php7.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -fomit-frame-pointer -floop-interchange -floop-strip-mine -floop-block -fgraphite-identity -ftree-loop-distribution -O3 -pipe -flto=8 -fuse-linker-plugin -ffat-lto-objects"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--with-bdeps=n --complete-graph --binpkg-respect-use=y --binpkg-changed-deps=n --changed-deps=n"
ENV_UNSET="CARGO_HOME 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 binpkg-multi-instance candy ccache config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.csclub.uwaterloo.ca/gentoo-distfiles/"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j8"
PKGDIR="/mnt/systmp/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="/tmp"
USE="0libedit X a52 a53 aac aalib acc acpi adns aio amd64 amr asm atm audiofile bash-completion bluray branding brotli bzip2 c++0x c++11 cdda cdr cli consolekit cracklib css custom-cflags custom-optimization dav1d dbx declarative default-gold dga dirac dri dri3 dts dv dvd dvdr emboss encode enscript exif faad ffmpeg firefox flac fortran gdu gif glut gmp gsm gstreamer gui gzip http2 iconv imlib ipc jemalloc jit jpeg jpeg2k kde ladspa lame libevent libglvnd libnotify libsamplerate libtirpc libwww lto lv2 lz4 lzma lzo mad matroska matrox mikmod mime minimal mmap mmx mozilla mp3 mp4 mpeg mplayer mpris mudflap multilib networkmanager nntp nocd nptl nptlonly nsplugin offensive ogg openal opengl openmp optimization opus orc osc pam pango pdf pgo phonon pie plasma png policykit posix ppds pppd pulseaudio qml qt5 quicktime raw readline schroedinger sharedmem shorten smp sndfile sockets socks5 speex spell split-usr sse sse2 sse3 sse4 sse4_1 sse4_2 ssse3 startup-notification strong-optimization svg svg2 symlink sysfs systemd taglib tcmalloc theora threads tiff toolame truetype twolame udev udisks unicode unixd upower usb vaapi vcd vhosts vorbis vpx wavpack webp widgets win32codecs wxwidgets x264 x265 xcb xine xinerama xml xorg xpm xv xvid zlib" 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="unixd authn_core authz_core authz_host access_compat alias auth_basic authn_file log_config mime log_config proxy proxy_http rewrite proxy_balancer lbmethod_bybusyness lbmethod_byrequests lbmethod_bytraffic lbmethod_heartbeat slotmem_shm env cache dir cgid headers proxy_connect" APACHE2_MPMS="event" CALLIGRA_FEATURES="karbon sheets words" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="ssse3 sse3 sse4_1 sse4_2 mmx sse avx mmx sse2 f16c popcnt" 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" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev" KERNEL="linux" L10N="en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="nlpsolver pdfimport" LLVM_TARGETS="x86" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" NGINX_MODULES_HTTP="access fastcgi gzip gzip_static limit_req rewrite upstream_check proxy" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-3 php7-4" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" QEMU_SOFTMMU_TARGETS="x86_64" RUBY_TARGETS="ruby26" USERLAND="GNU" VIDEO_CARDS="intel i965 i915" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RUSTFLAGS