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<p class="MsoNormal"><span lang="EN-GB">Hey Clang-people,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I have a nooby question about the -ffunction-sections flag of Clang.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">As far as I used to understand, setting this flag means, that every function gets their own section. Makes sense so far.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Recently I started to look into the ELF format a bit so that subject came up. I created a macro to quickly generate me some functions:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">#define wuff(a, b) \<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">a##b<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">#define crap(num) \<o:p></o:p></p>
<p class="MsoNormal">int wuff(schwimmflugel, num) () \<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB">{ \<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"> return num; \<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Creating the object file and looking into it, I found a section header for every of my functions no matter if I set the -ffunction-sections flag or not.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Also setting my function to static didn't changed a thing.... well besides from having those functions striped from my object file xD<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">So... what does that flag effect?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Kind greetings<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Björn<o:p></o:p></span></p>
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