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Bug 910546 - sys-kernel/gentoo-kernel-6.1.38: not compile with clang+LTO(thin)
Summary: sys-kernel/gentoo-kernel-6.1.38: not compile with clang+LTO(thin)
Status: UNCONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: AMD64 Linux
: Normal normal (vote)
Assignee: Distribution Kernel Project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-07-19 08:35 UTC by Tim Song
Modified: 2023-07-20 17:17 UTC (History)
1 user (show)

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


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Description Tim Song 2023-07-19 08:35:29 UTC
sys-kernel/gentoo-kernel-6.1.38 will not compile with clang+LTO since LLVM-ISM is not set
a easy workaround a just set LLVM-ISM=1 when compiling 

Reproducible: Always

Steps to Reproduce:
1.follow the wiki and setup the clang+LTO in make.conf
2. emerge sys-kernel/gentoo-kernel
Actual Results:  
fail
/var/tmp/portage/sys-kernel/gentoo-kernel-6.1.38/work/modprep/tools/objtool/fixdep.o: file not recognized: file format not recognized


Expected Results:  
build success

Portage 3.0.49 (python 3.11.4-final-0, default/linux/amd64/17.1/desktop/plasma, gcc-12, glibc-2.37-r3, 6.1.38-gentoo-dist-hardened x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.1.38-gentoo-dist-hardened-x86_64-AMD_Ryzen_7_5800X_8-Core_Processor-with-glibc2.37
KiB Mem:    32760224 total,   5573672 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Wed, 19 Jul 2023 00:15:01 +0000
Head commit of repository gentoo: 35c573aa886164ec955f29bfeb892c99a6bd5ace
Timestamp of repository gentoo-zh: Tue, 18 Jul 2023 21:02:40 +0000
Head commit of repository gentoo-zh: 7ba19626bc89ae80665c790f0213ae3e8e1e518e

Timestamp of repository guru: Tue, 18 Jul 2023 21:02:55 +0000
Head commit of repository guru: ea3b08c0f9d269f1f4c448d5a76a5281f5adfb58

sh dash 0.5.12
ld GNU ld (Gentoo 2.40 p5) 2.40.0
ccache version 4.8.2 [disabled]
app-misc/pax-utils:        1.3.5::gentoo
app-shells/bash:           5.1_p16-r6::gentoo
dev-java/java-config:      2.3.1-r1::gentoo
dev-lang/perl:             5.36.1-r3::gentoo
dev-lang/python:           3.11.4::gentoo
dev-lang/rust:             1.70.0::gentoo
dev-util/ccache:           4.8.2::gentoo
dev-util/cmake:            3.26.4-r1::gentoo
dev-util/meson:            1.1.1::gentoo
sys-apps/baselayout:       2.13-r1::gentoo
sys-apps/openrc:           0.47.1::gentoo
sys-apps/sandbox:          2.37::gentoo
sys-devel/autoconf:        2.13-r7::gentoo, 2.71-r6::gentoo
sys-devel/automake:        1.16.5-r1::gentoo
sys-devel/binutils:        2.40-r5::gentoo
sys-devel/binutils-config: 5.5::gentoo
sys-devel/clang:           16.0.6::gentoo
sys-devel/gcc:             12.3.1_p20230526::gentoo
sys-devel/gcc-config:      2.11::gentoo
sys-devel/libtool:         2.4.7-r1::gentoo
sys-devel/lld:             16.0.6::gentoo
sys-devel/llvm:            16.0.6::gentoo
sys-devel/make:            4.4.1-r1::gentoo
sys-kernel/linux-headers:  6.1::gentoo (virtual/os-headers)
sys-libs/glibc:            2.37-r3::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync.au.gentoo.org/gentoo-portage
    priority: -1000
    volatile: False
    sync-rsync-verify-metamanifest: yes
    sync-rsync-extra-opts: 
    sync-rsync-verify-max-age: 24
    sync-rsync-verify-jobs: 1

gentoo-zh
    location: /var/db/repos/gentoo-zh
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/gentoo-zh.git
    masters: gentoo
    volatile: False

guru
    location: /var/db/repos/guru
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/guru.git
    masters: gentoo
    volatile: False

local
    location: /var/db/repos/local
    masters: gentoo
    volatile: False

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
AR="llvm-ar"
CBUILD="x86_64-pc-linux-gnu"
CC="clang"
CFLAGS="-O2 -pipe -march=native -flto=thin"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /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"
CXX="clang++"
CXXFLAGS="-O2 -pipe -march=native -flto=thin"
DISTDIR="/var/cache/distfiles"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE 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 XDG_STATE_HOME"
FCFLAGS="-O2 -pipe -march=native"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live 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 xattr"
FFLAGS="-O2 -pipe -march=native"
GENTOO_MIRRORS="https://mirror.aarnet.edu.au/pub/gentoo/ http://mirror.aarnet.edu.au/pub/gentoo/ rsync://mirror.aarnet.edu.au/pub/gentoo/ ftp://ftp.swin.edu.au/gentoo http://ftp.swin.edu.au/gentoo"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind -Wl,--as-needed  -Wl,-O2 -Wl,--as-needed"
LEX="flex"
MAKEOPTS="-j16"
NM="llvm-nm"
PKGDIR="/var/cache/binpkgs"
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"
RANLIB="llvm-ranlib"
SHELL="/bin/fish"
USE="X a52 aac acl acpi activities alsa amd64 bluetooth branding bzip2 cairo cdda cdr cet clang cli crypt cups dbus declarative dist-kernel dri dts dvd dvdr elogind encode exif firewalld flac fortran gdbm gif gles2 gpg gpm gstreamer gtk gui hardened iconv icu ipv6 jpeg kde kwallet lcms libnotify libtirpc llvm-libunwind mad mng mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp pam pango pcre pdf pie pipewire plasma png policykit ppds pulseaudio python qml qt5 readline screencast sdl seccomp semantic-desktop sound spell split-usr ssl ssp startup-notification svg test-rust tiff truetype udev udisks unicode upower usb v4l vaapi vorbis vulkan wayland widgets wxwidgets x264 xattr xcb xft xml xtpax xv xvid zlib" ABI_X86="64" ADA_TARGET="gnat_2021" 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 pclmul popcnt rdrand sha sse3 sse4_1 sse4_2 sse4a 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" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="WebAssembly" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-1" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" RUBY_TARGETS="ruby31" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" 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:  ADDR2LINE, ARFLAGS, AS, ASFLAGS, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS

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

sys-kernel/gentoo-kernel-6.1.38::gentoo was built with the following:
USE="hardened initramfs strip -debug -savedconfig -test" ABI_X86="(64)"
CFLAGS="-O2 -pipe -march=native"
CXXFLAGS="-O2 -pipe -march=native"
FEATURES="merge-sync distlocks binpkg-dostrip strict userpriv binpkg-docompress buildpkg-live parallel-fetch multilib-strict qa-unresolved-soname-deps binpkg-multi-instance xattr sfperms ccache protect-owned config-protect-if-modified sandbox userfetch usersandbox ipc-sandbox news unmerge-logs unknown-features-warn preserve-libs pid-sandbox fixlafiles usersync ebuild-locks unmerge-orphans binpkg-logs assume-digests network-sandbox"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind -Wl,--as-needed"