Gentoo masterrace thread. Talk about the bestest and most precious distro there is. Show what you're working on
/gentoo/
Evan Gray
Other urls found in this thread:
github.com
wiki.gentoo.org
twitter.com
Levi Martin
Shit guys i fucked up badly. I meant to say Windows 10 LTSC™
Camden Bell
Cute Myaano
Jaxon Morales
that's not how you spell OpenSUSE
Jordan Gutierrez
That whole article feels like it's way past its use by date.
wiki article:
CFLAGS="${CFLAGS} -flto=thin"
CXXFLAGS="${CXXFLAGS} -flto=thin"
LDFLAGS="-Wl,-O2 -Wl,--as-needed"
wiki discussion:
CFLAGS="${CFLAGS} -flto=thin"
CXXFLAGS="${CXXFLAGS} -flto=thin"
LDFLAGS="${LDFLAGS} -flto=thin"
or
LDFLAGS="-Wl,-O2 -Wl,--as-needed -Wl,--gc-sections -march=native -O3 -fuse-ld=lld -rtlib=compiler-rt -stdlib=libc++ -Wl,-lto-O3 -Wl,--build-id -Wl,--error-limit=0 -Wl,--icf=all -Wl,--thinlto-jobs=8 -Wl,--threads"
github.com
This sets -flto=thin in C{,XX}FLAGS only and nothing special in LDFLAGS
clover doesn't even touch LDFLAGS
CFLAGS="... -flto=8 ..."
CXXFLAGS="${CFLAGS}"
llvm documentation suggests that you need to tell -flto=thin to both compiler and linker, but as there are multiple layers of portage and build scripts above the tools themselves passing or not passing the flags around this all becomes rather confusing.
Eli Allen
Install Gentoo.
Easton Garcia
cont.
My own testing of this is rather limited in comparison but this setup worked on few packages and didn't on some
cat /etc/portage/env/fomgfast.conf
CC="clang"
CXX="clang++"
AR="llvm-ar"
NM="llvm-nm"
RANLIB="llvm-ranlib"
CFLAGS="-O3 -march=native -pipe -flto=thin"
CXXFLAGS="${CFLAGS}"
LDFLAGS="-Wl,-O2 -Wl,--as-needed -fuse-ld=lld -Wl,--thinlto-jobs=16"
Mason Bell
You can update the wiki if you want, it would surely be helpful.
Elijah Morris
Why actually are you using -fuse-ld=lld rather than just using LD="ld.lld"?
Cameron Fisher
Is this the Myaano thread?
Gabriel Wright
Just following documentation and it worked:
>Using LLD
LLD is installed as ld.lld. On Unix, linkers are invoked by compiler drivers, so you are not expected to use that command directly. There are a few ways to tell compiler drivers to use ld.lld instead of the default linker.
>The easiest way to do that is to overwrite the default linker. After installing LLD to somewhere on your disk, you can create a symbolic link by doing ln -s /path/to/ld.lld /usr/bin/ld so that /usr/bin/ld is resolved to LLD.
If you don’t want to change the system setting, you can use clang’s -fuse-ld option. In this way, you want to set -fuse-ld=lld to LDFLAGS when building your programs.
>LLD leaves its name and version number to a .comment section in an output. If you are in doubt whether you are successfully using LLD or not, run readelf --string-dump .comment and examine the output. If the string “Linker: LLD” is included in the output, you are using LLD.
Is LD variable even a thing and does all build scripts and portage respect that?
Camden Diaz
>Is LD variable even a thing and does all build scripts and portage respect that?
You might be right; maybe I'm an idiot and used a variable that doesn't exist.
Ryan Garcia
You could also use binutils-config
Ayden Anderson
Install Gentoo.
Charles Baker
Doesn't seem possible with 2.31.1:
* binutils-config: sorry, but x86_64-pc-linux-gnu-2.31.1 doesn't support the ld.lld linker
Do you need the masked 2.32 or 9999 for that?
Daniel Long
binutils-config can only change between ld.gold and ld.bfd. If you want to swap systemwide default linker to ld.lld then the best way to do it for now is to change where the /usr/bin/ld link points to manually (this is essentially what binutils-config does). As for my setup I was only interested in testing this on a per package basis that's why passing it with -fuse-ld= made most sense
Logan Gonzalez
Is there an easy way to change the default libc?
James Sullivan
Eselect profile set 44 during install.
Henry Watson
>try to update whole system
>can't update openssl because python-3.4 doesn't support it
>bunch of stuff requires python_targets3_4
>remove all use stuff related to python and the targets
>removed python-3.4 and trying to rebuild everything depending on it
>for some reason pulls rust, it doesn't compile
fuck this fucking system
Cameron Hernandez
Well, Portage runs on Python, IIRC. gj m8!
Parker Gray
Python versions can be set per package like:
## /etc/portage/package.use
app-text/asciidoc highlight PYTHON_SINGLE_TARGET: -* python2_7 PYTHON_TARGETS: -* python2_7
> bunch of stuff requires python_targets3_4
Nothing does, as far as I can tell. You likely could just have changed that to python3_6 or something and resolved against it. Feel free to explicitly rebuild things that depend on python3_4 if really really necessary.
Parker Sanders
cute myaano
Brody Morales
better way would be to remove any python targets from his make.conf and just let the profile defaults take over
Aiden Martinez
Maybe that's even closer to what he wants, sure.