Unable to build host-rust (version 1.33.0). I'm trying to build host-rust on my Ubuntu 18.04 with buildroot on branch master (commit 35e845700fb15b4ab30678c073300b508db4eb95) Steps to reproduce are: 1) select host-rust 2) make host-rust The error is the following: failed to parse TOML configuration 'config.toml': expected a table key, found a right bracket at line 15 failed to run: /home/eyal/buildroot/output/build/host-rust-1.33.0/build/bootstrap/debug/bootstrap build It looks like the HOST_RUST_CONFIGURE_CMDS didn't generated a proper .toml file. The 15th line in the generated .toml file is of the following format: echo '[target.$(RUSTC_TARGET_NAME)]'; I guess that should be some sort of validation for that variable before evaluating it. Thanks, Eyal
Hi, What arch/libc are you using? Only some combinations of those work (I think only glibc). Check out: http://buildroot-busybox.2317881.n4.nabble.com/PATCH-hack-to-be-able-to-build-Rust-targetting-MIPS-tp244931p244957.html Cheers, Álex
I'm using arm, little endian, cortex a7 for raspberrypi2 and uclibc. When I tried to use glibc over uclibc the build was successful.
Yes, I think the Makefile does not support any uclibc build, even though it works. I needed to build Rust to target uclibc and I hardcoded things and it worked (this on mipsel). I did something like this: https://github.com/alexpdp7/retrofw2-rust/blob/master/0010-Hardcode-target-to-mipsel-uclibc-is-built.patch The thread I linked contains more details. Also in the repo I collected some other interesting patches (updating Rust to a later version, patching the mipsel target to support the device I'm targetting, etc.). I'm adding myself to the cc:, in case the buildroot devs add support for uclibc...
Hi Eyal, Alex, As a short therm solution, I suggested a patch that disable host-rust package when the target architecture is not supported by rust [1]. I'm not sure how upstream rust project is testing/supporting uClibc-ng or musl. Note: The current rust version available in Buildroot is old, there is a patch series adding a Cargo package infrastructure and an update to rust 1.40 (1.43.1 is already available). Feel free to send a followup patch to enable host-rust for uclibc target. [1] http://patchwork.ozlabs.org/project/buildroot/patch/20200508152739.1625844-1-romain.naour@gmail.com/ Best regards, Romain
Applied the patch proposed by Romain as https://git.buildroot.org/buildroot/commit/?id=4c051c65eee278e54a95ec0f5790e39f9af901c9