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its_randomness
n00b
Joined: 06 Dec 2023
Posts: 12
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 Posted: Wed Oct 23, 2024 11:31 am Post subject: crossdev and make.conf confusion? |
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Hey all,
I'm trying to cross-build an arm version of Gentoo, because I want to avoid all use of QEMU or building on native hardware, for performance reasons and to keep build configurations on a huge building host.
The host is x86_64-pc-linux-gnu and the target is armv7a-unknown-linux-gnueabihf.
I have followed the guides I could find from gentoo wiki's about crossdev and cross compiling using emerge.
| Code: | ROOT=/chroot/arm
PORTAGE_CONFIGROOT=/chroot/arm
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When using running | Code: | | armv7a-unknown-linux-gnueabihf-emerge --info |
I can tell it picks up the settings I set in /chroot/arm/etc/portage/make.conf/local.conf
| Code: | [ebuild N ] sys-libs/ncurses-6.4_p20240414:0/6::gentoo to /chroot/arm/ USE="cxx (tinfo) -ada -debug -doc -gpm -minimal -profile (-split-usr) (-stack-realign) -static-libs -test -trace -verify-sig" 0 KiB
[ebuild N ] sys-process/htop-3.3.0::gentoo to /chroot/arm/ USE="unicode -caps -debug -delayacct -hwloc -llvm-libunwind (-lm-sensors) -openvz -unwind -vserver" 0 KiB
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This succeeds and I can see ncurses files and htop files are placed in the target root.
When running | Code: | | armv7a-unknown-linux-gnueabihf-emerge -ep @system |
I get:
| Code: | !!! The ebuild selected to satisfy "sys-apps/util-linux" for /usr/armv7a-unknown-linux-gnueabihf/ has unmet requirements.
- sys-apps/util-linux-2.40.2::gentoo USE="cramfs hardlink logger readline su suid -audit -build -caps -cryptsetup -fdformat -kill -magic -ncurses -nls -pam -python -rtas (-selinux) -slang -static-libs -systemd -test -tty-helpers -udev -unicode -uuidd -verify-sig" PYTHON_TARGETS="python3_12 -python3_10 -python3_11"
The following REQUIRED_USE flag constraints are unsatisfied:
su? ( pam )
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So I check my USE flags for target root:
| Code: | armv7a-unknown-linux-gnueabihf-emerge --info | grep pam
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returns:
| Code: | USE="acl arm bzip2 crypt gdbm iconv ipv6 ncurses nls openmp pam pcre readline seccomp ssl test-rust unicode xattr zlib"
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Do I have to manually maintain/switch portage between my target root /chroot/arm/etc/portage and /usr/armv7a-unknown-linux-gnueabihf/etc/portage , or am I missing something? |
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1207
Location: Richmond Hill, Canada
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| Posted: Wed Oct 23, 2024 1:43 pm Post subject: |
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In your configuration, there are two Portage configures. One is at your $ROOT(/chroot/arm)/etc/portage/ and the other is at /usr/armv7a-unknown-linux-gnueabihf/etc/portage/.
The message | Quote: | | !!! The ebuild selected to satisfy "sys-apps/util-linux" for /usr/armv7a-unknown-linux-gnueabihf/ has unmet requirements |
Is refer to "build time" dependency which look in to /usr/armv7a-unknown-linux-gnueabihf/etc/portage/*
your command "emerge -ep" make emerge assume empty target therefor everything need to be rebuild include all system software. |
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