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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-72190] LLDB fails to load symbols on toolchain v4</title>
                <link>https://jira.mongodb.org/browse/SERVER-72190</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After the [toolchain v4 change|&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7657e615d237c2e198ee296e8462c0f3b54f6465&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://example.com&lt;/a&gt;] LLDB is no longer able to load symbols when building with regular scons settings, like:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;./buildscripts/scons.py --variables-files=etc/scons/mongodbtoolchain_stable_clang.vars --ninja generate-ninja ICECC=icecc CCACHE=ccache --dbg=off --opt=on --modules=&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;/pre&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;This issue appears to be related to using higher DWARF than 32.&lt;/p&gt;

&lt;p&gt;Current workaround is to explicitly pass &quot;DWARF=32&quot; flag to scons.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;If direct fix is not feasible, we should consider the workaround more discoverable by engineers using LLDB, e.g.:&lt;/p&gt;

&lt;p&gt;a) documenting it in offical mongo dev guide for LLDB setup&lt;br/&gt;
b) having a friendly flag to indicate that LLDB support is needed, like &quot;LLDB_SUPPORT=on&quot; or similar, that would be less likely to break and adapt to any workaround differences in the future toolchains.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;We should also consider adding regression test for LLDB, that verifies sanity of the debugger.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;For more details see discussion &lt;a href=&quot;https://mongodb.slack.com/archives/CR8SNBY0N/p1671138402568879&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mongodb.slack.com/archives/CR8SNBY0N/p1671138402568879&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2214089">SERVER-72190</key>
            <summary>LLDB fails to load symbols on toolchain v4</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="anna.wawrzyniak@mongodb.com">Anna Wawrzyniak</reporter>
                        <labels>
                    </labels>
                <created>Fri, 16 Dec 2022 18:54:10 +0000</created>
                <updated>Fri, 27 Oct 2023 16:57:59 +0000</updated>
                            <resolved>Fri, 27 Oct 2023 16:57:59 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
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