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        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-49323] Evaluate feasibility and impact of enabling -fno-semantic-interposition</title>
                <link>https://jira.mongodb.org/browse/SERVER-49323</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;tt&gt;-fno-semantic-interposition&lt;/tt&gt; flag significantly improves startup time for dynamically linked binaries by disabling support for symbol interposition (e.g. &lt;tt&gt;LD_PRELOAD&lt;/tt&gt;. We should evaluate whether we think the loss of &lt;tt&gt;LD_PRELOAD&lt;/tt&gt; functionality is justified by the performance gains. If we decide against doing so, we should consider building with &lt;tt&gt;-fsemantic-interposition&lt;/tt&gt;, since clang defaults to &lt;tt&gt;-fno-semantic-interposition&lt;/tt&gt; despite it generating binaries that are technically not in alignment with the ELF standard.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1402771">SERVER-49323</key>
            <summary>Evaluate feasibility and impact of enabling -fno-semantic-interposition</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-devplatform">[DO NOT ASSIGN] Backlog - Server Development Platform Team (SDP)</assignee>
                                    <reporter username="andrew.morrow@mongodb.com">Andrew Morrow</reporter>
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                <created>Tue, 7 Jul 2020 13:08:44 +0000</created>
                <updated>Fri, 27 Oct 2023 17:19:53 +0000</updated>
                            <resolved>Fri, 27 Oct 2023 17:19:53 +0000</resolved>
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                            <comment id="3678934" author="xgen-internal-githook" created="Tue, 23 Mar 2021 13:16:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Andrew Morrow&apos;, &apos;email&apos;: &apos;acm@mongodb.com&apos;, &apos;username&apos;: &apos;acmorrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49323&quot; title=&quot;Evaluate feasibility and impact of enabling -fno-semantic-interposition&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49323&quot;&gt;&lt;del&gt;SERVER-49323&lt;/del&gt;&lt;/a&gt; Add experimental support for -fno-semantic-interposition&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7387505ddf0bab58c07ccb0c573ff7fdf5116f49&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7387505ddf0bab58c07ccb0c573ff7fdf5116f49&lt;/a&gt;&lt;/p&gt;</comment>
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