The real cause is that avr clang driver omits user specified --sysroot，I have
created a patch to fix that.
https://reviews.llvm.org/D95529
Ben
At 2021-01-26 09:53:56, "Ben Shi" <powerman1st at 163.com>
wrote:
I have reproduced the failures on my ubuntu server. The main reason is,
though I tested with removal of avr-gcc, the avr-libc and avr-binutils were not
auto removed.
I will try the test with all avr-related things removed on both linux and
windows.
Ben
At 2021-01-26 02:26:55, "Fāng-ruì Sòng" <maskray at google.com>
wrote:>On Sun, Jan 24, 2021 at 8:35 PM Ben Shi via llvm-dev
><llvm-dev at lists.llvm.org> wrote:
>>
>> Dear developers,
>>
>> A recent call commit by me caused a build failure, due to not enough
test.
>>
>> Please do not revert it and I will fix it ASAP.
>>
>> http://lab.llvm.org:8011/#/builders/109/builds/7148
>>
>> Ben
>
>Seems that you've reverted it
>(01d9f13c3a5914baf9739348ef666e348a7b2a2f), but please mention reasons
>for revert in the future.
>
>It was not due to insufficient test. It failed on macOS and Windows
>and was likely due to platform differences.
>
>For `clang -target x86_64` and many other target triples, they behave
>as generic ELF and should have the same behavior on different OSes.
>You may need to check why `-target avr` is different on macOS and Windows.
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