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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/08/25 12:47:06 UTC
[GitHub] [arrow] pitrou opened a new pull request #8048: ARROW-9813: [C++] Disable semantic interposition
pitrou opened a new pull request #8048:
URL: https://github.com/apache/arrow/pull/8048
By default, gcc enables "semantic interposition" which allows overriding a symbol using LD_PRELOAD tricks (for example). Disabling it allows faster calling conventions when calling global functions internally, and can also help inlining.
Basically, doing this shouldn't cause any harm, and could in some circumstances improve performance. A quick look at Arrow shared library sizes suggests code size is only minimally reduced.
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[GitHub] [arrow] kou closed pull request #8048: ARROW-9813: [C++] Disable semantic interposition
Posted by GitBox <gi...@apache.org>.
kou closed pull request #8048:
URL: https://github.com/apache/arrow/pull/8048
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[GitHub] [arrow] github-actions[bot] commented on pull request #8048: ARROW-9813: [C++] Disable semantic interposition
Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on pull request #8048:
URL: https://github.com/apache/arrow/pull/8048#issuecomment-680003370
https://issues.apache.org/jira/browse/ARROW-9813
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