Re: Future of armv7 [specifically: the status of lang/rust being buildable]

Kristof Provost <kp_at_FreeBSD.org> wrote on
Date: Sat, 15 Nov 2025 12:22:14 UTC :

> . . . because rust doesn’t build for armv7 . . .

I've not tried a build on the Orange-Pi+ 2ed (2 GiBytes of RAM)
or a RPi2 v1.1 (1 GiByte of RAM) in a long time in any for,
preferring faster build options. It could be that resource
limitations related to reasonable RAM+SWAP ssizes now block such
and I'd not know.

But I have an aarch64 boot media that I use with a Windows Dev
Kit 2023 to build armv7 port-packages. armv7 jails work natively
on this aarch64 system, not via qemu:

# poudriere jail -l
JAILNAME         VERSION      OSVERSION ARCH          METHOD    TIMESTAMP           PATH
official14-armv7 14.3-STABLE            arm.armv7     freebsdci 2025-11-12 13:26:11 /usr/local/poudriere/jails/official14-armv7
. . .
release-armv7    15.0-BETA1             armv7         pkgbase   2025-11-11 18:44:29 /usr/local/poudriere/jails/release-armv7
. . .
official-armv7   15.0-STABLE            armv7         pkgbase   2025-11-11 18:46:52 /usr/local/poudriere/jails/official-armv7
. . .
main-armv7       16.0-CURRENT           armv7         pkgbase   2025-11-11 18:49:52 /usr/local/poudriere/jails/main-armv7

I do not build rust in any of those frequently but the most recent is from 2025-Oct-14.
The log file reports:

build of lang/rust | rust-1.90.0_1 ended at 2025-10-14T10:27:56-07:00
build time: 11:26:06

For reference:

# pkg info rust
rust-1.90.0_1
Name           : rust
Version        : 1.90.0_1
Installed on   : Tue Oct 14 15:35:06 2025 PDT
Origin         : lang/rust
Architecture   : FreeBSD:16:armv7
Prefix         : /usr/local
Categories     : lang
Licenses       : MIT, APACHE20
Maintainer     : rust@FreeBSD.org
WWW            : https://www.rust-lang.org/
Comment        : Language with a focus on memory safety and concurrency
Options        :
	DOCS           : on
	GDB            : off
	LTO            : off
	PORT_LLVM      : off
	SOURCES        : on
	WASM           : on
Shared Libs required:
	libc++.so.1
	libc.so.7
	libcrypto.so.35
	libcurl.so.4
	libcxxrt.so.1
	libexecinfo.so.1
	libgcc_s.so.1
	libm.so.5
	librt.so.1
	libssl.so.35
	libthr.so.3
	libz.so.6
Shared Libs provided:
	librustc_driver-f829a56845e9245a.so
Annotations    :
	FreeBSD_version: 1600001
	cpe            : cpe:2.3:a:rust-lang:rust:1.90.0:::::freebsd16:armv7:1
	port_checkout_unclean: no
	ports_top_checkout_unclean: yes
	ports_top_git_hash: ac9b12ecd53f
	repo_type      : binary
	repository     : main-armv7-default
Flat size      : 1.11GiB
Description    :
Rust is an open-source systems programming language that runs blazingly
fast, prevents almost all crashes, and eliminates data races.
Some of its features:

  - Algebraic data types, type inference
  - Pattern matching and closures
  - Concurrency without data races
  - Guaranteed memory safety
  - Optional garbage collection
  - Zero-cost abstractions
  - Minimal runtime
  - Efficient C bindings


Also:

https://portsfallout.com/fallout?port=lang%2Frust&maintainer=&env=armv7&category=&flavor=

shows no history of lang/rust build failures. The history
goes back into 2025-07-04 .

Currently with all of FreeBSD 13.5, 14.3, 15.0, and main
for both latest and quarterly and there being only 3
aarch64/armv7 official port-package builder systems,
official builds of armv7 have been suspended (tier 2
status allows such). However, I expect the rust builds
would be working if the builds were being attempted.

So far as I know, rust still builds just fine for armv7.


===
Mark Millard
marklmi at yahoo.com