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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Deleted] (HADOOP-11505) Various native parts use bswap incorrectly and unportably
Date Wed, 09 Dec 2015 18:05:11 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris Nauroth updated HADOOP-11505:
    Comment: was deleted

(was: Yes, I can do that. We already have HadoopCommon.cmake and HadoopJNI.cmake in hadoop-common-project/hadoop-common,
I suggest putting the new CMake module in there (HadoopEndian.cmake?) and parameterising it
with an output directory in which to place the generated hadoop_endian.h file. It should be
fairly straightforward to do as it's basically just a case of factoring out the code I've
already written to generate the endinanness header and adding in calls to it from existing
CMake files.)

> Various native parts use bswap incorrectly and unportably
> ---------------------------------------------------------
>                 Key: HADOOP-11505
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11505
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Alan Burlison
>             Fix For: 3.0.0
>         Attachments: HADOOP-11505.001.patch, HADOOP-11505.003.patch, HADOOP-11505.004.patch,
HADOOP-11505.005.patch, HADOOP-11505.006.patch, HADOOP-11505.007.patch
> hadoop-mapreduce-client-nativetask fails to use x86 optimizations in some cases.  Also,
on some alternate, non-x86, non-ARM architectures the generated code is incorrect.  Thanks
to Steve Loughran and Edward Nevill for finding this.

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