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Posted to issues@arrow.apache.org by "kou (via GitHub)" <gi...@apache.org> on 2026/02/16 07:05:59 UTC

[I] [C++] Add support for armv8 and armv9 [arrow]

kou opened a new issue, #49292:
URL: https://github.com/apache/arrow/issues/49292

   ### Describe the enhancement requested
   
   It seems that `CMAKE_SYSTEM_PROCESSOR` may be `armv8` (and `armv9`?) based on the Debian package patch: https://salsa.debian.org/science-team/arrow/-/commit/390b81df4f9380e387c2b9b54d82a2d7f4df82ca
   
   
   
   ### Component(s)
   
   C++


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Re: [I] [C++] Add support for armv8 and armv9 [arrow]

Posted by "kou (via GitHub)" <gi...@apache.org>.
kou commented on issue #49292:
URL: https://github.com/apache/arrow/issues/49292#issuecomment-3930877142

   Issue resolved by pull request 49337
   https://github.com/apache/arrow/pull/49337


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Re: [I] [C++] Add support for armv8 and armv9 [arrow]

Posted by "kou (via GitHub)" <gi...@apache.org>.
kou closed issue #49292: [C++] Add support for armv8 and armv9
URL: https://github.com/apache/arrow/issues/49292


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Re: [I] [C++] Add support for armv8 and armv9 [arrow]

Posted by "kou (via GitHub)" <gi...@apache.org>.
kou commented on issue #49292:
URL: https://github.com/apache/arrow/issues/49292#issuecomment-3925331724

   https://salsa.debian.org/science-team/arrow/-/merge_requests/1#note_724736
   
   > I think the concern was about armv8l which is 32bit which armv8 (without the little endian 32bit variant) is aarch64. So, yes, that regular expression is a bit unfortunate. Maybe
   >
   > ```cmake
   > elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm$|armv[4-7]|armv8l")
   >      set(ARROW_CPU_FLAG "aarch32")
   > elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^armv[8]$")
   >      set(ARROW_CPU_FLAG "aarch64")
   > ```
   


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