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<p>On 2025-03-10 13:02, Baesken, Matthias wrote:</p>
<blockquote type="cite" cite="mid:AM9PR02MB6770E7A120A769AAC04830FC93D62@AM9PR02MB6770.eurprd02.prod.outlook.com">
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<p class="MsoNormal"><span lang="EN-US">Hello, while looking at
the JDK native lib optimization levels, I noticed this
special setting :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">make/modules/java.management/Lib.gmk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ifeq ($(call isTargetOs,
linux)+$(COMPILE_WITH_DEBUG_SYMBOLS), true+true)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
LIBMANAGEMENT_OPTIMIZATION := LOW<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">endif<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Why is it there ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I removed it in out
internal tests and saw no issues.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do we still need it
these days ? Was it maybe done for very old gcc versions ?</span></p>
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</blockquote>
<p>That's a good question. As I've stated over and over again, I
believe the overwhelming majority of the optimization flags are
there for no good reason; at least for no reason that can be
assumed to apply today.</p>
<p>In this particular case I did some git archaeology. It goes way
back to JDK-8054834: Modular Source Code, the jigsaw reshuffling
in 2014, and I did not manage to trace it roots from before that.
<br>
</p>
<p>/Magnus<br>
</p>
<br>
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