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[[!tag open_issue_glibc open_issue_libpthread]]
GSoC project idea: [[community/gsoc/project ideas/pthreads]]
---
`#hurd`, 2010-01-24
<pinotree> youpi: hm, thought about the pthread/stubs issue w/ dlopen'ed libraries
<pinotree> currently looks like libstdc++ on hurd links to pthread-stubs, we're the only one with such configuration
<pinotree> i was looking at the gcc 4.4 patch hurd-pthread.diff, could it be it does not set THREADLIBS in the configure.ac switch case?
<youpi> that's expected
<youpi> on linux the libc provides hooks itself, on hurd-i386 it's pthread-stubs
<pinotree> why not explicitly link to pthread though?
<youpi> because there is no strict need to, for applications that don't need libpthread
<youpi> the dlopen case is a tricky case that pthread-stubs had not thought about
<pinotree> hm
<pinotree> what if the pthread stubs would be moved in our glibc?
<youpi> that's what we should do yes
<youpi> (ideally)
<youpi> but for this we need to build libpthread along glibc, to get it really working
<youpi> and that's the tricky part (Makefile & such) which hasn't been done yet
<pinotree> why both (stubs + actual libpthread)?
<youpi> because you need the stubs to be able to call the actual libpthread
<youpi> as soon libpthread gets dlopened for instance
<youpi> +as
<pinotree> i see
<youpi> (remember that nptl does this if you want to see how)
<youpi> (it's the libc files in nptl/)
<youpi> (and forward.c)
<guillem> also if libpthreads gets integrated with glibc don't we need to switch the hurd from cthreads then? Which has been the blocker all this time AFAIR?
<youpi> we don't _need_ to
<guillem> ok
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