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Bug 808483 - dev-lang/go-1.16.7 does not build on x86 (unsupported setting GO386=softfloat)
Summary: dev-lang/go-1.16.7 does not build on x86 (unsupported setting GO386=softfloat)
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: x86 Linux
: Normal normal (vote)
Assignee: William Hubbs
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-08-15 17:39 UTC by Spekadyon
Modified: 2021-08-22 19:39 UTC (History)
1 user (show)

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


Attachments
build.log (build.log,3.15 KB, text/plain)
2021-08-15 17:40 UTC, Spekadyon
Details

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Description Spekadyon 2021-08-15 17:39:30 UTC
dev-lang/go-1.16.7 refuses to build on a Pentium III (Coppermine) machine, failing with the following error message:
> go tool compile: exit status 1
> unsupported setting GO386=softfloat

dev-lang/go-1.15.x (up to 1.15.15) builds fine though.

Reproducible: Always

Steps to Reproduce:
1. emerge -1 =dev-lang/go-1.16.7
Actual Results:  
Build fails

Expected Results:  
Build succeeds

emerge --info
Portage 3.0.20 (python 3.9.6-final-0, default/linux/x86/17.0, gcc-11.1.0, glibc-2.33-r6, 5.10.46-gentoo i686)
=================================================================
System uname: Linux-5.10.46-gentoo-i686-Pentium_III_-Coppermine-with-glibc2.33
KiB Mem:     1029868 total,    108540 free
KiB Swap:    1048572 total,    984324 free
Timestamp of repository gentoo: Sun, 15 Aug 2021 14:15:01 +0000
Head commit of repository gentoo: a72e19538f75f5d2900a45d2866d762f3e7c81d9
Head commit of repository spekadyon: c3a5174ab550c73558689f2203bddf2705d28443

sh bash 5.1_p8
ld GNU ld (Gentoo 2.36.1 p5) 2.36.1
app-shells/bash:          5.1_p8::gentoo
dev-lang/perl:            5.34.0::gentoo
dev-lang/python:          3.9.6::gentoo
dev-util/cmake:           3.21.1::gentoo
sys-apps/baselayout:      2.7-r3::gentoo
sys-apps/openrc:          0.43.3::gentoo
sys-apps/sandbox:         2.24::gentoo
sys-devel/autoconf:       2.69-r5::gentoo, 2.71-r1::gentoo
sys-devel/automake:       1.16.4::gentoo
sys-devel/binutils:       2.36.1-r2::gentoo
sys-devel/gcc:            11.1.0-r1::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: 5.13::gentoo (virtual/os-headers)
sys-libs/glibc:           2.33-r6::gentoo
Repositories:

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

spekadyon
    location: /var/db/repos/spekadyon
    sync-type: git
    sync-uri: https://github.com/Spekadyon/overlay.git
    masters: gentoo

ACCEPT_KEYWORDS="x86 ~x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Os -march=native -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-Os -march=native -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--quiet-build=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 -march=i686 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs 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 -march=i686 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="fr_FR.utf8"
LDFLAGS="-Wl,--as-needed -Wl,-O1"
LINGUAS="en fr"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/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="/var/tmp"
USE="acl bzip2 caps cli crypt dri ffmpeg gdbm iconv ipv6 libglvnd libtirpc ncurses nls nptl openmp pam pcre readline seccomp split-usr ssl unicode vhosts x86 xattr zlib" ABI_X86="32" ADA_TARGET="gnat_2018" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 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" 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" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-3 php7-4" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" RUBY_TARGETS="ruby26" USERLAND="GNU" 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:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RUSTFLAGS
Comment 1 Spekadyon 2021-08-15 17:40:27 UTC
Created attachment 733132 [details]
build.log
Comment 2 Tee KOBAYASHI 2021-08-16 11:34:51 UTC
It is a known issue upstream that >=dev-lang/go-1.16 on x86 w/o sse2 is not able to bootstrap from <dev-lang/go-1.16. See https://github.com/golang/go/issues/44500.

I don't know if bootstrapping from >=dev-lang/go-bootstrap-1.16 works.
Comment 3 William Hubbs gentoo-dev 2021-08-16 16:18:54 UTC
As you said, this issue is known, and I am planning on stabilizing the
new go-bootstrap package once I know that it fixes the issue.
Can you please attempt to bootstrap with the newer version of go-bootstrap and
report back?
Comment 4 Spekadyon 2021-08-16 18:40:15 UTC
(In reply to William Hubbs from comment #3)
> As you said, this issue is known, and I am planning on stabilizing the
> new go-bootstrap package once I know that it fixes the issue.
> Can you please attempt to bootstrap with the newer version of go-bootstrap
> and
> report back?

I won't have access to this machine til next Friday. I'll try then dev-lang/go-bootstrap-1.16.6 and report you back the results.
Comment 5 Spekadyon 2021-08-22 10:09:05 UTC
I had some spare time to confirm the bug and the suggested workaround

With dev-lang/1.15.15 emerged on the system, both dev-lang/go-1.16.7 and dev-lang/go-1.17 emerge fails with the same error:
> + GOROOT_BOOTSTRAP_VERSION='go1.15.15 linux/386'
> + echo 'Building Go cmd/dist using /usr/lib/go. (go1.15.15 linux/386)'
> Building Go cmd/dist using /usr/lib/go. (go1.15.15 linux/386)
> + false
> + '[' /usr/lib/go = /var/tmp/portage/dev-lang/go-1.17/work/go ']'
> + rm -f cmd/dist/dist
> + GOROOT=/usr/lib/go
> + GOOS=
> + GOARCH=
> + GO111MODULE=off
> + /usr/lib/go/bin/go build -o cmd/dist/dist ./cmd/dist
> go tool compile: exit status 1
> unsupported setting GO386=softfloat

After removing dev-lang/go-1.15.15, re-emerging dev-lang/go pulls dev-lang/go-bootstrap 
> emerge -1 dev-lang/go -pv
> 
> These are the packages that would be merged, in order:
> 
> Calculating dependencies... done!
> [ebuild  N     ] dev-lang/go-bootstrap-1.16.6::gentoo  USE="(-big-endian)" 122 930 KiB
> [ebuild  N     ] dev-lang/go-1.16.7:0/1.16.7::gentoo  CPU_FLAGS_X86="-sse2" 0 KiB
and dev-lang/go-1.16.7 builds fine