Date: Fri, 12 Sep 2008 09:26:37 -0400 From: "Barry Andrews" <titanandrews@gmail.com> To: "Jeremy Chadwick" <koitsu@freebsd.org> Cc: Daniel Eischen <deischen@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: loading multi threaded library into executable enabled for single thread Message-ID: <eda4c18b0809120626u48fbe5e2pdf7147d71d1f8def@mail.gmail.com> In-Reply-To: <20080912131045.GA56923@icarus.home.lan> References: <eda4c18b0809111206t6438f87dmb8fab0db939c9980@mail.gmail.com> <Pine.GSO.4.64.0809111620340.13959@sea.ntplx.net> <48CA555A.4050104@gmail.com> <20080912131045.GA56923@icarus.home.lan>
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I don't understand. If it was not broken, then why did it change in later FreeBSD versions? On Fri, Sep 12, 2008 at 9:10 AM, Jeremy Chadwick <koitsu@freebsd.org> wrote: > On Fri, Sep 12, 2008 at 07:41:14AM -0400, Barry Andrews wrote: > > Do you know if this is documented in Release Notes or Known Issues or > > somewhere? > > Why would it be an "issue"? gcc -pthread and libpthread linking is > documented pretty much everywhere on the web. There isn't anything > broken about it, it's how it's done on older FreeBSD. > > Note that all of this has significantly changed in later FreeBSD > versions, and that the 5.x series was deprecated a very long time ago. > > >> On Thu, 11 Sep 2008, Barry Andrews wrote: > >> > >>> Hi All, > >>> > >>> I have a multi-threaded library that is linked against libpthread. > >>> When I > >>> load this lib into a tclsh process on FreeBSD, I get this error, > >>> "Recurse on > >>> private mutex". and crash. I understand that I can have this issue > >>> when the > >>> executable is not linked against libpthread but one of the loaded > >>> libs is. > >>> Basically, it thinks it's in single threaded mode. > >> > >> This must be an older version of FreeBSD. I think you must > >> link your application (tclsh or whatever) against libpthread > >> in order for this to work. The libc functions won't get properly > >> overloaded by their equivalents in libpthread unless you do > >> this. > > -- > | Jeremy Chadwick jdc at parodius.com | > | Parodius Networking http://www.parodius.com/ | > | UNIX Systems Administrator Mountain View, CA, USA | > | Making life hard for others since 1977. PGP: 4BD6C0CB | > >
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