Re: [poky] [PATCH] local.conf.sample: disable prelink
Hi Alex, RP, Mark,
I did some research on the subject in order to try to figure out what is going on. 1) I come to a similar conclusion with what found, but tried to look a bit deeper for the reason. 1.1) The reason that cross-prelink is not prelinking is, that for a quite some time by default everything is built with PIE mode by default and cross-prelink does not seem to be able to work on exe/libs compiled with PIE mode. So seeing the same behavior with and without prelinking is what I would expect as long as everything is compiled with PIE mode. A more detailed analysis of my tests can be found on my not yet officially published site: https://rlbl.me/prelink-1 https://rlbl.me/prelink-2 Alex: Can you please rebuild your test images without PIE mode and re-run the tests? Then we should have the 4 test cases: prelinked-with-pie no-prelink-with-pie prelink-no-pie no-prelink-no-pie I guess then we can discuss what are the next steps. In my opinion the current default settings, which compile close to everything in PIE mode, but invoke also cross-prelink do not make much sense. The question is: "Do we want to drop cross-prelink, or do we want to drag it along and come up more fine-grained configuration options?" We could e.g. exclude certain files from pre-linking. IMHO cross-prelink still works, but not on exe/libs which were compiled in PIE mode. Regards, Robert |
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