gcc-14.1.1_p20240518[enable-cet] fails to build when system compiler is clang-18.1.6. Reproducible: Always Steps to Reproduce: 1. emerge clang-common-18.1.6 with USE="cet default-compiler-rt default-lld hardened llvm-libunwind -bootstrap-prefix -default-libcxx -verify-sig" 2. emerge clang-18.1.6 with USE="extra (pie) static-analyzer xml -debug -doc (-ieee-long-double) -test -verify-sig" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) SPIRV (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12" 3. emerge gcc-14.1.1_p20240518 with USE="cet (cxx) (default-stack-clash-protection) (default-znow) fortran graphite lto (multilib) nls openmp (pie) sanitize ssp zstd -ada (-custom-cflags) -d -debug -doc (-fixed-point) -go -hardened (-ieee-long-double) -jit (-libssp) -modula2 -objc -objc++ -objc-gc (-pch) -pgo -rust -systemtap -test -valgrind -vanilla -vtv" 4. Observe build failure Actual Results: /var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/build/./gcc/xgcc -B/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/build/./gcc/ -B/usr/x86_64-pc-linux-gnu/bin/ -B/usr/x86_64-pc-linux-gnu/lib/ -isystem /usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include -fno-checking -g -O2 -march=native -pipe -O3 -m32 -O2 -g -O2 -march=native -pipe -O3 -DIN_GCC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -mlong-double-80 -DUSE_ELF_SYMVER -fcf-protection -mshstk -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fno-stack-clash-protection -fpic -mlong-double-80 -DUSE_ELF_SYMVER -fcf-protection -mshstk -I. -I. -I../../.././gcc -I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc -I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/. -I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/../gcc -I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/../include -I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o avx_savms64_s.o -MT avx_savms64_s.o -MD -MP -MF avx_savms64_s.dep -DSHARED -c -xassembler-with-cpp /var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/config/i386/avx_savms64.S cc1: error: ‘-fcf-protection’ is not compatible with this target Expected Results: successful build gcc-13.2.1_p20240503 builds using the above steps. gcc-14.1.1_p20240518[enable-cet] also build if the system compiler is set to gcc instead of clang.
Created attachment 893468 [details] gcc-build-logs.tar.xz
Portage 3.0.64 (python 3.11.9-final-0, default/linux/amd64/23.0/desktop, gcc-13, glibc-2.39-r6, 6.8.9-gentoo x86_64) ================================================================= System uname: Linux-6.8.9-gentoo-x86_64-AMD_Ryzen_9_7950X_16-Core_Processor-with-glibc2.39 KiB Mem: 130998996 total, 78355660 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Sun, 19 May 2024 23:48:38 +0000 Head commit of repository gentoo: 116aa8b721dcdebb2eb65c03e656b16d14cc28c6 Timestamp of repository brother-overlay: Fri, 17 May 2024 12:20:55 +0000 Head commit of repository brother-overlay: 19d0fa5a6f475f6a3498828e438e54fefeff7951 Head commit of repository magpie: fff67a2f7f1c771dfaf9c10489295e873fab3dd2 sh bash 5.2_p26-r3 ld GNU ld (Gentoo 2.42 p3) 2.42.0 app-misc/pax-utils: 1.3.7::gentoo app-shells/bash: 5.2_p26-r3::gentoo dev-build/autoconf: 2.13-r8::gentoo, 2.72-r1::gentoo dev-build/automake: 1.16.5-r2::gentoo dev-build/cmake: 3.29.3::gentoo dev-build/libtool: 2.4.7-r4::gentoo dev-build/make: 4.4.1-r1::gentoo dev-build/meson: 1.4.0-r1::gentoo dev-java/java-config: 2.3.3-r1::gentoo dev-lang/perl: 5.38.2-r5::gentoo dev-lang/python: 3.11.9::gentoo, 3.12.3::gentoo, 3.13.0_beta1_p1::gentoo dev-lang/rust: 1.77.1::gentoo sys-apps/baselayout: 2.15::gentoo sys-apps/openrc: 0.54::gentoo sys-apps/sandbox: 2.38::gentoo sys-devel/binutils: 2.42-r1::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/clang: 17.0.6::gentoo, 18.1.6::gentoo sys-devel/gcc: 13.2.1_p20240503::gentoo, 14.1.1_p20240518::gentoo sys-devel/gcc-config: 2.11::gentoo sys-devel/lld: 17.0.6::gentoo, 18.1.6::gentoo sys-devel/llvm: 17.0.6::gentoo, 18.1.6::gentoo sys-kernel/linux-headers: 6.9::gentoo (virtual/os-headers) sys-libs/glibc: 2.39-r6::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo.git priority: -1000 volatile: False brother-overlay location: /var/db/repos/brother-overlay sync-type: git sync-uri: https://github.com/gentoo-mirror/brother-overlay.git masters: gentoo volatile: False magpie location: /var/db/repos/magpie sync-type: git sync-uri: https://github.com/nvinson/magpie.git masters: gentoo volatile: False Binary Repositories: gentoobinhost priority: 1 sync-uri: https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" AR="llvm-ar" CBUILD="x86_64-pc-linux-gnu" CC="clang" CFLAGS="-march=native -O3 -pipe -flto=thin" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /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/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXX="clang++" CXXFLAGS="-march=native -O3 -pipe -flto=thin" DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--quiet-build" 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 -O3 -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 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 -O3 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs" LEX="flex" MAKEOPTS="-j32" 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 cet clang cleartype corefonts crypt cups dbus dri dts dvd dvdr elogind encode exif flac gdbm gif glamor gpm gtk gui iconv icu ipv6 jpeg lcms libnotify libtirpc lto mad mng mp3 mp4 mpeg multilib ncurses nls ogg opengl openmp pam pango pcre pdf png policykit ppds qt5 readline sdl seccomp sound spell ssl startup-notification svg test-rust theora tiff truetype udev udisks unicode upower usb vaapi vorbis vpx vulkan wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="64" ADA_TARGET="gcc_12" 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 avx512_bf16 avx512_bitalg avx512_vbmi2 avx512_vnni avx512_vpopcntdq avx512bw avx512cd avx512dq avx512f avx512ifma avx512vbmi avx512vl f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 vpclmulqdq" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 ntrip navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en-US en" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-1" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" RUBY_TARGETS="ruby31" VIDEO_CARDS="amdgpu radeonsi" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto 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, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS
One workaround is to build gcc with gcc instead of clang.
