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https://issues.apache.org/jira/browse/ZOOKEEPER-1374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13195159#comment-13195159
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James Page commented on ZOOKEEPER-1374:
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Patrick - that sounds entirely reasonable and the updated patch looks good;
would you like me to test on arm* architectures before committing?
> C client multi-threaded test suite fails to compile on ARM architectures.
> -------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1374
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1374
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.3.4
> Environment: Ubuntu 12.04 (precise) armel or armhf
> Reporter: James Page
> Assignee: James Page
> Priority: Minor
> Fix For: 3.4.3, 3.5.0
>
> Attachments: ZOOKEEPER-1374.patch, ZOOKEEPER-1374.patch
>
>
> The multi-threaded test suite fails to build on ARM architectures:
> g++ -DHAVE_CONFIG_H -I. -I./include -I./tests -I./generated
> -D_FORTIFY_SOURCE=2 -DUSE_STATIC_LIB -DTHREADED
> -DZKSERVER_CMD="\"./tests/zkServer.sh\"" -Wall -g -MT
> zktest_mt-ThreadingUtil.o -MD -MP -MF .deps/zktest_mt-ThreadingUtil.Tpo -c -o
> zktest_mt-ThreadingUtil.o `test -f 'tests/ThreadingUtil.cc' || echo
> './'`tests/ThreadingUtil.cc
> /tmp/ccqJWQRC.s: Assembler messages:
> /tmp/ccqJWQRC.s:373: Error: bad instruction `lock xaddl r4,[r3,#0]'
> /tmp/ccqJWQRC.s:425: Error: bad instruction `lock xchgl r4,[r3,#0]'
> gcc does provide alternative primitives (_sync_*) which provide better cross
> platform compatibility; but that does make the assumption that a) gcc is
> being used or b) the primitives are provided by alternative compilers.
> Tracked in Ubuntu here:
> https://bugs.launchpad.net/ubuntu/+source/zookeeper/+bug/920871
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