Date: Thu, 03 Apr 2003 15:35:41 -0800 From: Peter Wemm <peter@wemm.org> To: Daniel Eischen <eischen@pcnet1.pcnet.com> Cc: freebsd-threads@freebsd.org Subject: Re: 1:N threading Message-ID: <20030403233541.F02592A8A7@canning.wemm.org> In-Reply-To: <Pine.GSO.4.10.10304031804240.27631-100000@pcnet1.pcnet.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Daniel Eischen wrote: > The patches are available: > > http://people.freebsd.org/~deischen/libpthread.diffs > > FYI, since this is a new mailing list, the above changes > are meant to give libpthread M:N capability. > > I don't need testers; I have enough bugs that I know about > to fix. + __asm__("movl %%gs, %0" : "=r" (id)); + id >>= 3; + if (id - NLDT < 0) There is a problem here, NLDT is kernel private and changes depending on things like whether SMP is enabled or what the maximum number of cpus is. You're trying to find if its a local or global selector, right? What you really want is bit 2 which tells you which it is. #define ISLDT(s) ((s)&SEL_LDT) /* is it local or global */ #define SEL_LDT 4 /* local descriptor table */ Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030403233541.F02592A8A7>