Re: problems on FreeBSD14 on armv6 board (RPI1-B)
Date: Sat, 23 Dec 2023 04:26:51 UTC
On Dec 17, 2023, at 23:34, Alex Samorukov <samm@freebsd.org> wrote: > On 2023/12/18 01:41, Mark Millard wrote: > >> I'll note that I've never done such "armv6-only processor" testing. >> I'll not have access to any FreeBSD arm6, arm7, or aarch64 contexts >> until after something like 2024-Jan-01. > I also checked llvm compilation logs: > > -- LLVM host triple: armv6-portbld-freebsd13.2-gnueabihf > -- LLVM default target triple: armv6-portbld-freebsd13.2-gnueabihf > > So I would expect it will not use armv7 instructions based on the "host" (jail) EABI. > > Also, I see that rust is failing to build: > > rust-1.74.1.log:=>> Ignoring lang/rust: is only for aarch64 amd64 armv7 i386 powerpc powerpc64 powerpc64le riscv64, while you are running armv6 (reason: requires prebuilt bootstrap compiler) > > Not sure if it's done due to qemu problem or not, maybe will try to remove ignore later and rebuild I got access to one of the RPi4B's, so looking for myself . . . I used FreeBSD-14.0-STABLE-arm64-aarch64-RPI-20231216-2ef9079ece5a-266002.img dd'd to media in order to boot: # uname -apKU FreeBSD generic 14.0-STABLE FreeBSD 14.0-STABLE #0 stable/14-n266002-2ef9079ece5a: Sat Dec 16 08:49:23 UTC 2023 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64 aarch64 1400501 1400501 I downloaded FreeBSD-13.2-STABLE-arm-armv6-RPI-B-20231216-9986fd59d855-256898.img and dd'd it to media as well. # mount -onoatime /dev/da1s2a /mnt # file /mnt/bin/sh /mnt/bin/sh: ELF 32-bit LSB executable, ARM, EABI5 version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, FreeBSD-style, for FreeBSD 13.2 (1302509), stripped # chroot /mnt/ # uname -apKU FreeBSD generic 14.0-STABLE FreeBSD 14.0-STABLE #0 stable/14-n266002-2ef9079ece5a: Sat Dec 16 08:49:23 UTC 2023 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm armv7 1400501 1302509 Note the "arm armv7". An aarch64 kernel can be built and booted that makes that "arm armv6" so that more things work. # uname -p armv7 # make -V MACHINE_ARCH armv6 That contradicts what man uname reports relative to "uname -p" and "MACHINE_ARCH": -p Write the type of the machine processor architecture to standard output. (make(1) uses it to set the MACHINE_ARCH variable.) # c++ -v FreeBSD clang version 16.0.6 (https://github.com/llvm/llvm-project.git llvmorg-16.0.6-0-g7cbf1a259152) Target: armv6-unknown-freebsd13.2-gnueabihf Thread model: posix InstalledDir: /usr/bin So, without the adjusted kernel, an odd mix of armv6 and armv7. As for rust vs. armv6: the lang/rust/Makefile has: ONLY_FOR_ARCHS?= aarch64 amd64 armv7 i386 powerpc64 powerpc64le powerpc \ ONLY_FOR_ARCHS_REASON?= requires prebuilt bootstrap compiler === Mark Millard marklmi at yahoo.com