On 20-01-2024 14:19, Richard Purdie wrote:
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On Sat, 2024-01-20 at 08:42 +0000, Richard Purdie via
lists.openembedded.org wrote:
On Fri, 2024-01-19 at 07:09 -0800, Shinde, Yash via
lists.openembedded.org wrote:
From: Yash Shinde<yash.shi...@windriver.com>

Fixes: Exception: no cargo executable found at
        `${B}/rustc-1.74.1-src/build/x86_64-unknown-linux-gnu/stage0/bin/cargo`

Fix the cargo binary path error on oe-selftest and path set to rust-snapshot 
dir.

Patch sent to upstream-https://github.com/rust-lang/rust/pull/120125

Signed-off-by: Yash Shinde<yash.shi...@windriver.com>
---
  .../rust/files/cargo-path.patch               | 37 +++++++++++++++++++
  1 file changed, 37 insertions(+)
  create mode 100644 meta/recipes-devtools/rust/files/cargo-path.patch
The series failed on mips in testing:

https://autobuilder.yoctoproject.org/typhoon/#/builders/147/builds/1196/steps/12/logs/stdio

Sadly the error redirection is to a file and even in the failed build,
we do not have that file as far as I can see so it is hard to know what
went wrong.
I was able to find the file:

https://autobuilder.yocto.io/pub/failed-builds-data/summary.txt

(buildbot-venv) [pokybuild@rocky9-ty-1 build-st-1051644]$ cp 
./tmp/work/mips32r2-poky-linux/rust/1.74.1/rustc-1.74.1-src/summary.txt 
/srv/autobuilder/autobuilder.yocto.io/pub/failed-builds-data/

---- [ui] tests/ui/issues/issue-32805.rs stdout ----

.
.
.
.

failures:
     [ui] tests/ui/issues/issue-32805.rs
     [ui] tests/ui/numbers-arithmetic/i128.rs
     [ui] tests/ui/numbers-arithmetic/saturating-float-casts.rs
     [ui] tests/ui/runtime/backtrace-debuginfo.rs

test result: FAILED. 15246 passed; 4 failed; 291 ignored; 0 measured; 21 
filtered out; finished in 693.24s

Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu 
target=mips-poky-linux-gnu
Testing stage1 compiletest suite=run-pass-valgrind mode=run-pass-valgrind 
(x86_64-unknown-linux-gnu -> mips-poky-linux-gnu)

It is observed that "mips(32 bits)" target is pretty unstable with rust tests. Thus, we decided unanimously to skip mips(32 bits) target in the initial implementation of the rust oe-selftest. I did check the testsuite for the mips target and many more failures were found.

According to the rust doc, the mips target variants are classified into tier 3 targets( for which the Rust codebase has support for, but which the Rust project does not build or test automatically, so they may or may not work. <https://doc.rust-lang.org/nightly/rustc/platform-support.html#:~:text=Tier%203%20targets%20are%20those%20which%20the%20Rust%20codebase%20has%20support%20for%2C%20but%20which%20the%20Rust%20project%20does%20not%20build%20or%20test%20automatically%2C%20so%20they%20may%20or%20may%20not%20work.>), which might be the reason for failures.

https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-3:~:text=mips%2Dunknown%2Dlinux%2Dgnu,kernel%204.4%2C%20glibc%202.23)


<https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-3:~:text=mips%2Dunknown%2Dlinux%2Dgnu,kernel%204.4%2C%20glibc%202.23)>Regards,
Yash


Cheers,

Richard
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