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<p class="MsoNormal"><span lang="EN-GB">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I implement support of AIX archive (big archive / XCOFF) on LLVM.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I have done a prototype available here : <a href="https://github.com/EGuesnet/llvm-project/commit/1db5ddbdfea5614d0b91a8a6a1920ac630163ec0">
https://github.com/EGuesnet/llvm-project/commit/1db5ddbdfea5614d0b91a8a6a1920ac630163ec0</a> .<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">This prototype replaces support of GNU/BSD/... archive by big archive, but you can switch changing the include. I have implemented only read operation (t, x, p).<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 want advices, especially to merge correctly support of Big archive and other archive. Main troubles to merge is big archive has a different header than other archive.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Moreover, big archives have a fix length header, and one header for each object; fix and object headers are different (they are the same structure for non-big archive). Big archives have member table and symbol table
at the end of the archive, so you must stop to read it before the end; the location of these table are given with absolute offset, hard to take into account in current code.<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">Big archive documentation is here : https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/filesreference/ar_big.html .<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">Thanks.<o:p></o:p></span></p>
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