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Bug 949982 - sys-devel/mold: Fails to build rust packages with LTO - mold: fatal: failed to load plugin : /usr/bin/ld.mold: undefined symbol: onload
Summary: sys-devel/mold: Fails to build rust packages with LTO - mold: fatal: failed t...
Status: UNCONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: Sam James
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: lto systemwide-mold
  Show dependency tree
 
Reported: 2025-02-19 21:42 UTC by zyxhere
Modified: 2025-02-21 16:18 UTC (History)
2 users (show)

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


Attachments
example build.log (build.log,96.36 KB, text/x-log)
2025-02-19 21:42 UTC, zyxhere
Details

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Description zyxhere 2025-02-19 21:42:58 UTC
Created attachment 919444 [details]
example build.log

= note: mold: fatal: failed to load plugin : /usr/bin/ld.mold: undefined symbol: onload
          clang: error: linker command failed with exit code 1 (use -v to see invocation)
          

error: could not compile `bcrypt-rust` (lib) due to 1 previous error

Portage 3.0.66.1 (python 3.12.8-final-0, default/linux/amd64/23.0/no-multilib/hardened/systemd, gcc-14, glibc-2.40-r8, 6.12.15-gentoo-dist-hardened x86_64)
=================================================================
System uname: Linux-6.12.15-gentoo-dist-hardened-x86_64-12th_Gen_Intel-R-_Core-TM-_i5-1235U-with-glibc2.40
KiB Mem:    11958744 total,    925844 free
KiB Swap:   11958608 total,   9787612 free
Timestamp of repository gentoo: Wed, 19 Feb 2025 20:49:37 +0000
Head commit of repository gentoo: 0f60881412ab61803cb2dedda8ebe7310a1b6ac2

Head commit of repository guru: 93a25e09f5ae07272b6fa865af45c92431784f58

sh bash 5.2_p37
ld GNU ld (Gentoo 2.43 p3) 2.43.1
app-misc/pax-utils:        1.3.8::gentoo
app-shells/bash:           5.2_p37::gentoo
dev-build/autoconf:        2.13-r8::gentoo, 2.72-r1::gentoo
dev-build/automake:        1.16.5-r2::gentoo
dev-build/cmake:           3.30.6::gentoo
dev-build/libtool:         2.5.4::gentoo
dev-build/make:            4.4.1-r100::gentoo
dev-build/meson:           1.6.1::gentoo
dev-lang/perl:             5.40.0-r1::gentoo
dev-lang/python:           3.12.8_p1::gentoo, 3.13.1_p1::gentoo
dev-lang/rust-bin:         1.83.0-r1::gentoo
llvm-core/clang:           19.1.7::gentoo
llvm-core/llvm:            19.1.7::gentoo
sys-apps/baselayout:       2.17::gentoo
sys-apps/sandbox:          2.39::gentoo
sys-apps/systemd:          256.10::gentoo
sys-devel/binutils:        2.43-r2::gentoo
sys-devel/binutils-config: 5.5.2::gentoo
sys-devel/gcc:             14.2.1_p20250215::gentoo, 15.0.1_pre20250216::gentoo
sys-devel/gcc-config:      2.12.1::gentoo
sys-kernel/linux-headers:  6.12::gentoo (virtual/os-headers)
sys-libs/glibc:            2.40-r8::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: git
    sync-uri: https://anongit.gentoo.org/git/repo/sync/gentoo.git
    priority: -1000
    volatile: False

guru
    location: /var/db/repos/guru
    sync-type: git
    sync-uri: https://anongit.gentoo.org/git/repo/proj/guru.git
    masters: gentoo
    volatile: False

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

Installed sets: @base, @extra, @gnomie, @utils
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe -flto=auto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
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/sandbox.d"
CXXFLAGS="-march=native -O2 -pipe -flto=auto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
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="-march=native -O2 -pipe -flto=auto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
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 merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-march=native -O2 -pipe -flto=auto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="C.UTF8"
LD="ld.mold"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -flto=auto -fuse-ld=mold"
LEX="flex"
LIBTOOL="rlibtool"
MAKE="make LIBTOOL=rlibtool"
MAKEFLAGS="LIBTOOL=rlibtool"
MAKEOPTS="-j8 -l10"
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"
RUSTFLAGS="-C target-cpu=native"
SHELL="/bin/bash"
USE="acl amd64 aom avif bzip2 cet crypt dbus dist-kernel flac fontconfig gdbm gdk-pixbuf gif gles2 gnome gnome-keyring gstreamer gtk gtk4 hardened harfbuzz iconv icu io-uring ipv6 jpeg jpegxl keyring lcms libtirpc lto lz4 lzma lzo modemmanager ncurses networkmanager nls opengl openmp opus orc pam pcre pdf pgo pic pie pipewire png policykit profile readline screencast seccomp sound spell ssl ssp svg systemd test-rust tiff tpm udev udisks unicode upower usb vaapi vpx vulkan wayland webp xattr xml xtpax zlib zstd" ABI_X86="64" ADA_TARGET="gcc_14" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio 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 avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 ssse3 vpclmulqdq" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="AMDGPU X86 WebAssembly" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-2" POSTGRES_TARGETS="postgres16" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12" RUBY_TARGETS="ruby32" VIDEO_CARDS="intel" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LFLAGS, LINGUAS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, SIZE, STRINGS, STRIP, YACC, YFLAGS
Comment 1 zyxhere 2025-02-19 21:45:08 UTC
Portage env file to rust/llvm/lto

COMMON_FLAGS="-march=native -O2 -pipe -flto=thin"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
FCFLAGS="${COMMON_FLAGS}"
FFLAGS="${COMMON_FLAGS}"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs
	-flto=thin -fuse-ld=mold"
#LDFLAGS="${LDFLAGS} -flto=thin"
CGO_CFLAGS="${COMMON_FLAGS}"
CGO_CXXFLAGS="${COMMON_FLAGS}"
CGO_FFLAGS="${COMMON_FLAGS}"
CGO_LDFLAGS="${LDFLAGS}"
RUSTFLAGS="${RUSTFLAGS} -C linker=clang -C linker-plugin-lto"
GOAMD64="v3"
CGO_CFLAGS="${CFLAGS}"
CGO_CXXFLAGS="${CXXFLAGS}"
CGO_FFLAGS="${FFLAGS}"
CGO_LDFLAGS="${LDFLAGS}"
CC="clang"
CXX="clang++"
#CPP="clang-cpp"
AR="llvm-ar"
AS="llvm-as"
NM="llvm-nm"
RANLIB="llvm-ranlib"
LD="ld.mold"
STRIP="llvm-strip"
OBJCOPY="llvm-objcopy"
OBJDUMP="llvm-objdump"
READELF="llvm-readelf"
LLVM=1
Comment 2 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2025-02-19 21:48:11 UTC
If anything, I think it's really a dupe of bug 947697. But really, I'd prefer not to see more bugs for the same thing until one case is actually well-understood and fixed. It's not clear to me at all that mold is innocent here.