6a45747f72
BR2_PACKAGE_HOST_RUSTC_ARCH only had a special value for
BR2_ARM_CPU_ARMV7A, but it also needs a special value for
BR2_ARM_CPU_ARMV5, as the pre-compiled Rust standard library for
ARMv5TE is identified with the "armv5te" architecture name, see
https://doc.rust-lang.org/nightly/rustc/platform-support.html.
We noticed this because Rust binaries wouldn't work on an ARMv5
platform (Illegal instruction). This was due to the usage of the
arm-unknown-linux-gnueabi variant of the Rust standard library, which
is for ARMv6. Thanks to this commit, we correctly use the
armv5te-unknown-linux-gnueabi variant, and Rust binaries work properly
on ARMv5TE.
A better approach would be to do the conversion from architecture
options to Rust tuples in a single string symbol that also defines the
supported architectures, similar to how it's done in e.g. openblas.
However, that's a much bigger change. So for now, just do the easy thing
and fix this one issue.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit
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| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| README | ||
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches