When building with clang-15, the generated libefivar.so library is broken. The broken library causes applications to link to it to segfault on start. Reproducible: Always Steps to Reproduce: 1. run CFLAGS="-march=native -O2 -pipe -ggdb" \ CXXFLAGS="-march=native -O2 -pipe -ggdb" \ CC=clang LD=ld.lld \ LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind" \ make 2. write test.c 3. run clang -Wl,-rpath,$PWD/src -Lsrc/ test.c -o test -lefivar 4. run test Actual Results: the test binary segfaults. Expected Results: the test binary returns the libefivar version number. test.c: #include<stdio.h> #include<efivar/efivar.h> int main() { printf("%d\n", efi_get_libefivar_version()); return 0; } clang -v: clang version 15.0.2 Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm/15/bin Configuration file: /etc/clang/clang.cfg System configuration file directory: /etc/clang Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Selected multilib: .;@m64 ld.lld -v: LLD 15.0.2 (compatible with GNU linkers) emerge --info: $ emerge --info Portage 3.0.38.1 (python 3.10.7-final-0, default/linux/amd64/17.1/desktop, gcc-12.2.0, glibc-2.36-r4, 6.0.0-gentoo x86_64) ================================================================= System uname: Linux-6.0.0-gentoo-x86_64-Intel-R-_Core-TM-_i7-4771_CPU_@_3.50GHz-with-glibc2.36 KiB Mem: 32558044 total, 12961368 free KiB Swap: 2097148 total, 2006096 free Timestamp of repository gentoo: Mon, 10 Oct 2022 07:19:02 +0000 Head commit of repository gentoo: a3af5c2ef585ad1a3928954109a37676f148b778 Timestamp of repository brother-overlay: Mon, 12 Sep 2022 19:25:29 +0000 Head commit of repository brother-overlay: d9faa8af87d81688313b3e308849f82642b7c437 Head commit of repository magpie: 112940922ff26bd85d22cfc248aaacfeaeaabf55 sh bash 5.1_p16-r2 ld GNU ld (Gentoo 2.39 p5) 2.39.0 app-misc/pax-utils: 1.3.5::gentoo app-shells/bash: 5.1_p16-r2::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.36.0::gentoo dev-lang/python: 3.10.7::gentoo, 3.11.0_rc2::gentoo dev-lang/rust: 1.64.0-r1::magpie dev-util/cmake: 3.24.2::gentoo dev-util/meson: 0.63.2-r1::gentoo sys-apps/baselayout: 2.9::gentoo sys-apps/openrc: 0.45.2::gentoo sys-apps/sandbox: 2.29::gentoo sys-devel/autoconf: 2.13-r3::gentoo, 2.71-r4::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.39-r3::gentoo sys-devel/binutils-config: 5.4.1::gentoo sys-devel/clang: 15.0.2::gentoo sys-devel/gcc: 12.2.0::gentoo sys-devel/gcc-config: 2.7::gentoo sys-devel/libtool: 2.4.7::gentoo sys-devel/lld: 15.0.2::gentoo sys-devel/llvm: 14.0.6-r2::gentoo, 15.0.2::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 6.0::gentoo (virtual/os-headers) sys-libs/glibc: 2.36-r4::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo.git priority: -1000 sync-git-verify-commit-signature: true brother-overlay location: /var/db/repos/brother-overlay sync-type: git sync-uri: https://github.com/gentoo-mirror/brother-overlay.git masters: gentoo magpie location: /var/db/repos/magpie sync-type: git sync-uri: https://github.com/nvinson/magpie.git masters: gentoo ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" AR="llvm-ar" CBUILD="x86_64-pc-linux-gnu" CC="clang" CFLAGS="-march=native -O2 -pipe -D_FORTIFY_SOURCE=3 -fstack-protector-strong -flto=thin" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /opt/brother/scanner/brscan4/brsanenetdevice4.cfg /usr/lib64/libreoffice/program/sofficerc /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 /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXX="clang++" CXXFLAGS="-march=native -O2 -pipe -D_FORTIFY_SOURCE=3 -fstack-protector-strong -flto=thin" DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--quiet-build" 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 XDG_STATE_HOME" FCFLAGS="-march=native -O2 -pipe" 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="-march=native -O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind" MAKEOPTS="-j8" 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/zsh" USE="X a52 aac acl acpi alsa amd64 branding bzip2 cairo cdda cdr clang cleartype cli corefonts crypt cups dbus dri dts dvd dvdr elogind encode exif flac fortran gdbm gif glamor gpm gtk gui iconv icu ipv6 jpeg lcms libglvnd libnotify libtirpc mad mng mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp pam pango pcre pdf png policykit ppds qt5 readline sdl seccomp spell split-usr ssl startup-notification svg theora tiff truetype udev udisks unicode upower usb vaapi vorbis vpx wxwidgets x264 xattr xcb xml xv xvid zlib" ABI_X86="64" ADA_TARGET="gnat_2020" 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 avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4 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" KERNEL="linux" L10N="en-US en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_10" PYTHON_TARGETS="python3_10" RUBY_TARGETS="ruby27" USERLAND="GNU" VIDEO_CARDS="intel i965" 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, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LEX, 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
