| View previous topic :: View next topic |
| Author |
Message |
CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3924
|
 Posted: Sun Sep 22, 2024 10:45 pm Post subject: sys-devel/gcc forced -O2? Upstream? |
 |
|
I have a feeling sys-devel/gcc forces -O2 as I recently failed trying to change it?
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Mon Sep 23, 2024 11:02 pm; edited 3 times in total |
|
| Back to top |
|
 |
Hu
Administrator
Joined: 06 Mar 2007
Posts: 22739
|
| Posted: Sun Sep 22, 2024 11:34 pm Post subject: |
|
|
| Per eclass/toolchain.eclass, if you do not USE=custom-cflags, then yes, this is forced, because too many people had problems with overly aggressive CFLAGS. |
|
| Back to top |
|
|
Ionen
Developer
Joined: 06 Dec 2018
Posts: 2870
|
| Posted: Sun Sep 22, 2024 11:48 pm Post subject: |
|
|
| Actually, it has a special rule for -O3 where it'll use the custom target "bootstrap-O3" and then filter it (this lets upstream handle using -O3 similarly to lto with bootstrap-lto). It should use -O3 for most of the build (regardless of custom-cflags), and seems to use it fine for me at a glance. |
|
| Back to top |
|
|
CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3924
|
| Posted: Mon Sep 23, 2024 6:23 am Post subject: |
|
|
Well,
didn't show custom-flags for some reason.
Thus confused pov.
Target is to lower the value here.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
|
| Back to top |
|
|
CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3924
|
| Posted: Mon Sep 23, 2024 11:00 pm Post subject: |
|
|
I actually meant forced by upstream, not gentoo portage tree.
custom-cflags in make.conf for years now.
Currently testing with | Code: | emerge --info
Portage 3.0.65 (python 3.11.10-final-0, default/linux/amd64/23.0/split-usr, gcc-13, glibc-2.39-r6, 6.11.0-gentoo-std x86_64)
=================================================================
System uname: Linux-6.11.0-gentoo-std-x86_64-Intel-R-_Core-TM-_i3-6100_CPU_@_3.70GHz-with-glibc2.39
KiB Mem: 3930288 total, 1452196 free
KiB Swap: 200772604 total, 200208364 free
Timestamp of repository gnu-elpa: Mon, 23 Sep 2024 13:04:53 +0000
Head commit of repository gnu-elpa: 91735c2504deb8600cadfa872720b6bf9d07a3e8
Timestamp of repository guru: Mon, 23 Sep 2024 12:34:31 +0000
Head commit of repository guru: 72a9f384ec6107ccbc5a50ef43299d4739d01fc5
Timestamp of repository melpa: Mon, 23 Sep 2024 13:04:53 +0000
Head commit of repository melpa: f691c3bd55901c573549f88627afd128e94943ab
Timestamp of repository mv: Mon, 23 Sep 2024 05:44:47 +0000
Head commit of repository mv: 9395ca144a6b7e47993cad8742f86e80050d3f98
Timestamp of repository gentoo: Mon, 23 Sep 2024 18:15:00 +0000
Head commit of repository gentoo: d77f23603b2349453cefd6a66c05cedd2d6ce227
sh bash 5.2_p32-r1
ld GNU ld (Gentoo 2.42 p3) 2.42.0
distcc 3.4 x86_64-pc-linux-gnu [disabled]
app-misc/pax-utils: 1.3.7::gentoo
app-shells/bash: 5.2_p32-r1::gentoo
dev-build/autoconf: 2.13-r8::gentoo, 2.71-r7::gentoo
dev-build/automake: 1.16.5-r2::gentoo
dev-build/cmake: 3.30.2::gentoo
dev-build/libtool: 2.4.7-r4::gentoo
dev-build/make: 4.4.1-r1::gentoo
dev-build/meson: 1.5.1::gentoo
dev-java/java-config: 2.3.4::gentoo
dev-lang/perl: 5.40.0::gentoo
dev-lang/python: 2.7.18_p16-r2::gentoo, 3.10.15_p1::gentoo, 3.11.10_p1::gentoo, 3.12.6_p2::gentoo
dev-lang/rust: 1.81.0::gentoo
sys-apps/baselayout: 2.15::gentoo
sys-apps/openrc: 0.54.2::gentoo
sys-apps/sandbox: 2.39::gentoo
sys-devel/binutils: 2.42-r1::gentoo
sys-devel/binutils-config: 5.5.2::gentoo
sys-devel/clang: 15.0.7-r3::gentoo, 18.1.8::gentoo, 19.1.0::gentoo
sys-devel/gcc: 13.3.1_p20240614::gentoo, 14.2.1_p20240921::gentoo
sys-devel/gcc-config: 2.11::gentoo
sys-devel/lld: 19.1.0::gentoo
sys-devel/llvm: 15.0.7-r7::gentoo, 17.0.6-r3::gentoo, 18.1.8-r4::gentoo, 19.1.0::gentoo
sys-kernel/linux-headers: 6.10::gentoo (virtual/os-headers)
sys-libs/glibc: 2.39-r6::gentoo
Repositories:
gnu-elpa
location: /var/db/repos/gnu-elpa
sync-type: git
sync-uri: https://github.com/gentoo-mirror/gnu-elpa.git
masters: gentoo
priority: -10001
volatile: False
guru
location: /var/db/repos/guru
sync-type: git
sync-uri: https://github.com/gentoo-mirror/guru.git
masters: gentoo
priority: -10001
volatile: False
melpa
location: /var/db/repos/melpa
sync-type: git
sync-uri: https://github.com/gentoo-mirror/melpa.git
masters: gnu-elpa gentoo
priority: -10001
volatile: False
mv
location: /var/db/repos/mv
sync-type: git
sync-uri: https://github.com/gentoo-mirror/mv.git
masters: gentoo
priority: -10001
volatile: False
gentoo
location: /var/db/repos/gentoo
sync-type: rsync
sync-uri: rsync://rsync.europe.gentoo.org/gentoo-portage
priority: -1000
volatile: False
sync-rsync-extra-opts:
sync-rsync-verify-jobs: 1
sync-rsync-verify-metamanifest: yes
sync-rsync-verify-max-age: 24
local
location: /var/db/repos/local
masters: gentoo
priority: 10000
volatile: False
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O1 -march=native -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.9/conf"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php8.2/ext-active/ /etc/php/cgi-php8.2/ext-active/ /etc/php/cli-php8.2/ext-active/ /etc/php/fpm-php8.2/ext-active/ /etc/php/phpdbg-php8.2/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O1 -march=native -pipe"
DISTDIR="/var/cache/distfiles"
EMERGE_DEFAULT_OPTS="--alert y --alphabetical --ask-enter-invalid --autounmask y --autounmask-only n --autounmask-unrestricted-atoms y --autounmask-write y --complete-graph y --misspell-suggestions n --noconfmem --nospinner --tree --with-bdeps y"
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=core2 -mtune=native -O2 -pipe -Wa,-mbranches-within-32B-boundaries "
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live compress-build-logs 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 split-elog strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-march=core2 -mtune=native -O2 -pipe -Wa,-mbranches-within-32B-boundaries "
GENTOO_MIRRORS="http://gentoo.mirrors.ovh.net/gentoo-distfiles/ http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/ http://ftp.halifax.rwth-aachen.de/gentoo/ http://ftp.free.fr/mirrors/ftp.gentoo.org/ http://mirrors.soeasyto.com/distfiles.gentoo.org/ http://mirror.eu.oneandone.net/linux/distributions/gentoo/gentoo/ http://mirror.leaseweb.com/gentoo/ http://www.mirrorservice.org/sites/distfiles.gentoo.org/ http://ftp.belnet.be/pub/rsync.gentoo.org/gentoo/ http://mirror.bytemark.co.uk/gentoo/"
LANG="fr_FR.utf8"
LDFLAGS="-Wl,-O1 -Wl,-fuse-ld=mold "
LEX="flex"
LINGUAS="fr"
MAKEOPTS="-j3 -l3"
PKGDIR="/var/cache/binpkgs"
PORTAGE_COMPRESS="lzma"
PORTAGE_COMPRESS_FLAGS="-9"
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="-Ctarget-cpu=native -Cllvm-args=-x86-branches-within-32B-boundaries "
SHELL="/bin/bash"
USE="amd64 asm custom-cflags emacs eselect-ldso fortran gentoo-vm gtk-doc minimal modules-compress modules-sign ocamlopt pgo split-usr test-rust verify-sig" ABI_X86="64" ALSA_CARDS="hda-intel" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput" KERNEL="linux" L10N="fr" LUA_SINGLE_TARGET="lua5-4" LUA_TARGETS="lua5-4" PERL_FEATURES="ithreads" PHP_TARGETS="php8-2" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" QEMU_USER_TARGETS="aarch64" RUBY_TARGETS="ruby32" VIDEO_CARDS="intel"
Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, SIZE, STRINGS, STRIP, YACC, YFLAGS |
echoed build log returns -02 whereas -01 from above is expected.
/etc/portage/package.env has been cleaned up to not interfere.
-march=native is properly taken into account here.
-02 seems hardcoded to me.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
|
| Back to top |
|
|
Ionen
Developer
Joined: 06 Dec 2018
Posts: 2870
|
| Posted: Tue Sep 24, 2024 1:09 am Post subject: |
|
|
| Oh you want -O1, you'll need USE=custom-cflags for that then but the USE is masked so you have to unmask it first for it to take effect if really want that. |
|
| Back to top |
|
|
stefan11111
l33t
Joined: 29 Jan 2023
Posts: 934
Location: Romania
|
| Posted: Tue Sep 24, 2024 3:47 pm Post subject: |
|
|
Why use -O1 globally?
It's not like -O2 is broken or something.
If you're using -O1 to avoid -fstrict-aliasing, you can just put -O2 -fno-strict-aliasing in CFLAGS
_________________
My overlay: https://github.com/stefan11111/stefan_overlay
INSTALL_MASK="/etc/systemd /lib/systemd /usr/lib/systemd /usr/lib/modules-load.d *udev* /usr/lib/tmpfiles.d *tmpfiles* /var/lib/dbus /usr/bin/gdbus /lib/udev" |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Other Things Gentoo
