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On 01/31/2015 08:04 AM, Anthony G. Basile wrote: |
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> Yeah I just confirmed that. I installed amd64 fbsd 10.1. I've used |
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> obsd for years and noticed the "UNIX - System V" and just thought it was |
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> the same for all *bsd systems. This is the only time I've seen a |
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> different OS/ABI. |
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Hmm, that's interesting. I just noticed that on wikipedia they have a |
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table listing 9 different constants [1]. |
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> Anyhow, I did some perf testing. Concentrating on www-apps/moodle (which |
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> is a huge package of some 19000 files but no elfs), and |
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> app-emulation/wine (which has 11000 elf objects) and I found no |
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> appreciable performance hit. |
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Good. If you have enough memory, the ELF headers are likely to be in the |
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buffer cache when portage probes them for the multilib category. So, if |
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you're lucky, it will just read from the buffer cache instead of from |
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the disk. |
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> Other tests show that PROVIDES, REQUIRES and NEEDED.ELF.2 are correctly |
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> being generated. |
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Great, thanks for validating this. |
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> Once committed, I'll rebuild @system and see if we get the correct |
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> linkage graph. I have scripts do build such a graph from readelf -d and |
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> so I can compare. |
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Excellent. Also, I've been making lots of progress on soname dependency |
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resolution in portage [2]. Pretty soon, it should be ready to merge into |
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the integration branch [3], for wider testing via the corresponding |
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overlay [4]. |
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[1] http://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header |
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[2] https://github.com/zmedico/portage/tree/binpkg-soname-deps |
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[3] https://github.com/zmedico/portage/tree/binpkg-support-integration |
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[4] https://github.com/zmedico/portage-binpkg-support-overlay |
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-- |
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Thanks, |
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Zac |
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