A way to build and install libpthread as 1:1 as well as M:N?
Robert Watson
rwatson at freebsd.org
Sun Jul 18 09:32:47 PDT 2004
On Sun, 18 Jul 2004, Daniel Eischen wrote:
> The way to do this so it is switchable without relinking the application
> (and without using libmap.conf) is to use LD_LIBRARY_PATH. You can
> install libpthread built as 1:1 anywhere you like and just set
> LD_LIBRARY_PATH to wherever it is installed.
>
> If you want both 1:1 and M:N versions of libpthread installed by
> default, we have to decide where to install the 1:1 version. I would
> recommend 1:1 go in lib/lwp/libpthread.so.1 and M:N in
> lib/libpthread.so.1. You could change "lwp" to "kse" or something
> else.
The issue here is my keeping everything in sync and making sure testing is
reproduceable. If I'm manually building and installing threading
libraries, I'm likely to screw it up. I was hoping for a mechanism in
buildworld/installworld so that it all happens automatically, reducing the
chances of user error, stale library versions, etc.
Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org Principal Research Scientist, McAfee Research
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