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authorhttps://me.yahoo.com/a/g3Ccalpj0NhN566pHbUl6i9QF0QEkrhlfPM-#b1c14 <diana@web>2015-02-16 20:08:03 +0100
committerGNU Hurd web pages engine <web-hurd@gnu.org>2015-02-16 20:08:03 +0100
commit95878586ec7611791f4001a4ee17abf943fae3c1 (patch)
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-[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]]
-
-[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
-id="license" text="Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License, Version 1.2 or
-any later version published by the Free Software Foundation; with no Invariant
-Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
-is included in the section entitled [[GNU Free Documentation
-License|/fdl]]."]]"""]]
-
-[[!tag open_issue_glibc open_issue_libpthread]]
-
-IRC, unknown channel, unknown date.
-
- <youpi> btw, the issue with pthread_cancel is tricky
- <youpi> I'm afraid there might be no fix
- <youpi> clean fix, I mean
- <pinotree> oh, hm
- <pinotree> where it the problem located, actually?
- <youpi> it's a lot more than just one place
- <youpi> in some c++ header there is a weak reference to pthread_cancel
- <youpi> libpthreadstubs0 provides a weak definition of pthread_cancel, which can suit well
- <youpi> problem comes when also linking with a library which pulls libpthread
- <youpi> oops no libpthreadstubs0 doesn't provide a weak definition of pthread_cancel
- <youpi> it couldn't implement it anyway
- <youpi> and the problem here is that the linker seems to be looking for pthread_cancel in the libpthreadstubs0 library, not libpthread
- <youpi> and can't find it
- <youpi> I don't know how this translate to english, but we're “walking on eggs
- <youpi> ” on this issue
- <pinotree> i see
- <youpi> i.e. we already know we're not respecting the ELF standard
- <youpi> we need a feature that is not in the standard to make pthread symbols working
- <youpi> the solution would be to integrate libpthread into the glibc
- <pinotree> you mean in the sources, but still providing separate libc.so and libpthread.so?
- <youpi> yes
- <pinotree> would that be difficult/tricky?
- <youpi> because that permits to put pthread_* functions forwarding directly in the glibc, as is done on linux
- <youpi> problem is upstream, you know...
- <youpi> if we put libpthread there, it'll be difficult for us to maintain it
- <pinotree> ah, the friendly ulrich mate?
- <youpi> we already have difficults to get almost trivial patches commited
- <youpi> and the "yes I'll handle it someday" Roland mate
- <youpi> Roland is supposed to be the GNU part maintainer, but he doesn't have a box running at the moment
- <youpi> what we could do is to do it in Debian for the moment
- <pinotree> yeah
- <pinotree> iirc eglibc is maintained within git, isn't it?
- <pinotree> maybe you could do a hurd branch, putting all the hurd patches and the pthread sources, and then releasing from that
- <youpi> we're already moving to something like that, yes
- <youpi> at least for all the other glibc patches we have
- <youpi> maybe we'll just do that on sourceware actually