linux-kernel - Re: [PATCH 0/8] selftests: x86: build suite with clang

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Date: Fri, 7 Jun 2024 14:50:09 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Muhammad Usama Anjum <usama.anjum@...labora.com>,
 Shuah Khan <shuah@...nel.org>, Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <ndesaulniers@...gle.com>, Bill Wendling
 <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>,
 Rick Edgecombe <rick.p.edgecombe@...el.com>,
 "Mike Rapoport (IBM)" <rppt@...nel.org>, Ingo Molnar <mingo@...nel.org>,
 Dave Hansen <dave.hansen@...ux.intel.com>,
 Alexey Dobriyan <adobriyan@...il.com>, Binbin Wu
 <binbin.wu@...ux.intel.com>, "Chang S. Bae" <chang.seok.bae@...el.com>,
 "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
 llvm@...ts.linux.dev
Cc: kernel@...labora.com, Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 0/8] selftests: x86: build suite with clang

On 5/27/24 23:04, Muhammad Usama Anjum wrote:
> Soft reminder
> 
> On 5/1/24 5:29 PM, Muhammad Usama Anjum wrote:
>> This series fixes build errors found by clang to allow the x86 suite to
>> get built with the clang.
>>
>> Unfortunately, there is one bug [1] in the clang becuase of which
>> extended asm isn't handled correctly by it and build fails for
>> sysret_rip.c. Hence even after this series the build of this test would
>> fail with clang. Should we disable this test for now when clang is used
>> until the bug is fixed in clang? Not sure. Any opinions?
>>
>> [1] https://github.com/llvm/llvm-project/issues/53728
>>
>> Muhammad Usama Anjum (8):
>>    selftests: x86: Remove dependence of headers file
>>    selftests: x86: check_initial_reg_state: remove -no-pie while using
>>      -static
>>    selftests: x86: test_vsyscall: remove unused function
>>    selftests: x86: fsgsbase_restore: fix asm directive from =rm to =r
>>    selftests: x86: syscall_arg_fault_32: remove unused variable
>>    selftests: x86: test_FISTTP: use fisttps instead of ambigous fisttp
>>    selftests: x86: fsgsbase: Remove unused function and variable
>>    selftests: x86: amx: Remove unused functions
>>
>>   tools/testing/selftests/x86/Makefile            |  9 +++++----
>>   tools/testing/selftests/x86/amx.c               | 16 ----------------
>>   tools/testing/selftests/x86/fsgsbase.c          |  6 ------
>>   tools/testing/selftests/x86/fsgsbase_restore.c  |  2 +-
>>   tools/testing/selftests/x86/syscall_arg_fault.c |  1 -
>>   tools/testing/selftests/x86/test_FISTTP.c       |  8 ++++----
>>   tools/testing/selftests/x86/test_vsyscall.c     |  5 -----
>>   7 files changed, 10 insertions(+), 37 deletions(-)
>>
> 

These patches usually go through x86 repo.

I need ack from x86 maintainers to take these. I don't see x86 list
cc'ed.

Please make sure to include everybody on these threads to get quicker
response.

thanks,
-- Shuah