From: G E. <gel...@gm...> - 2006-07-26 22:07:20
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python requires it. any modules that are not PIC are not loadable by dlopen and will result in the following: Can't modify ./_mymodule.so's text section. Use GCC option -fPIC for shared objects, please. i don't know if this can be turned off, but for now i just need to make sure all python modules are PIC friendly. would setting --disable-shared in python's make file remove the python requirement for PIC modules? On Jul 26, 2006, at 7:19 AM, Dave Hylands wrote: > Hi Greg, > >> i was hoping to disable FORCE_SHAREABLE_TEXT_SEGMENTS in uclibc in >> order to >> cross-compile some python modules. >> >> does the gumstix linux absolutely require position independent >> code (PIC)? >> i'm not looking to use assembly code (obviously). > > I believe that the only a couple of portions of the kernel that have > to use position independent code (in the early boot) and that's coded > in assembly. > > User mode code (which is what uses uClibc) shouldn't care. Loadable > modules and shared libraries use a linking stage to resolve symbols at > load time. > > I think that the reason for enabling the option and using position > independent code is to reduce overall memory requirements. If program > A wants to load libfoo at address X, and program B wants to load > libfoo at address Y, then they can share the code pages if it's > compiled with position independent code. > > I'm curious why the python modules would care? > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ---------------------------------------------------------------------- > --- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to > share your > opinions on IT & business topics through brief surveys -- and earn > cash > http://www.techsay.com/default.php? > page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |