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https://issues.apache.org/jira/browse/KUDU-3475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell resolved KUDU-3475.
---------------------------------
Fix Version/s: 1.17.0
Assignee: Joe McDonnell
Resolution: Fixed
> Build on Ubuntu 20 ARM hits errors due to redeclaration of vld1q_u8_x4
> ----------------------------------------------------------------------
>
> Key: KUDU-3475
> URL: https://issues.apache.org/jira/browse/KUDU-3475
> Project: Kudu
> Issue Type: Bug
> Components: build
> Affects Versions: 1.17.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Major
> Fix For: 1.17.0
>
>
> When building on an Ubunu 20 ARM machine, it now uses GCC 9.4, which includes
> a definition of vld1q_u8_x4. The build fails with messages like this:
> {noformat}
> 20:28:53 In file included from
> /home/ubuntu/kudu/src/kudu/util/group_varint-inl.h:25,
> 20:28:53 from
> /home/ubuntu/kudu/src/kudu/util/group_varint.cc:18:
> 20:28:53 /home/ubuntu/kudu/src/kudu/util/sse2neon.h:184:27: error:
> ‘uint8x16x4_t vld1q_u8_x4(const uint8_t*)’ redeclared inline without
> ‘gnu_inline’ attribute
> 20:28:53 184 | FORCE_INLINE uint8x16x4_t vld1q_u8_x4(const uint8_t *p) {
> 20:28:53 | ^~~~~~~~~~~
> 20:28:53 In file included from /home/ubuntu/kudu/src/kudu/util/sse2neon.h:66,
> 20:28:53 from
> /home/ubuntu/kudu/src/kudu/util/group_varint-inl.h:25,
> 20:28:53 from
> /home/ubuntu/kudu/src/kudu/util/group_varint.cc:18:
> 20:28:53 /usr/lib/gcc/aarch64-linux-gnu/9/include/arm_neon.h:18122:1: note:
> ‘uint8x16x4_t vld1q_u8_x4(const uint8_t*)’ previously defined here
> 20:28:53 18122 | vld1q_u8_x4 (const uint8_t *__a)
> 20:28:53 | ^~~~~~~~~~~{noformat}
> There have been major changes in the logic of sse2neon.h over the past couple
> years. The code uses a different name to avoid collisions and it has more
> sophisticated version checks.
> See these commits:
> [https://github.com/DLTcollab/sse2neon/commit/e96c9818e25f019629a6b96f62382d42179eab3c]
> [https://github.com/DLTcollab/sse2neon/commit/26011f2ca7f22fd2b93b85fa84a2465ffc489710]
> One possible fix is to update sse2neon to a more recent version.
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