Date: Wed, 24 Sep 2003 11:25:11 +0100 (BST) From: =?iso-8859-1?q?Alex=20Keahan?= <agkeahan@yahoo.co.uk> To: freebsd-current@freebsd.org Subject: Re: Fixing -pthreads (Re: ports and -current) Message-ID: <20030924102511.48634.qmail@web20705.mail.yahoo.com>
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Why don't we make -pthread link to the *default* thread library (kse)? Solaris has a similar -mt option: -mt Passes D_REENTRANT to preprocessor. Appends -lthread after all other user-specified libraries on the command line. If you are doing your own multithread coding, you must use this option in the compile and link steps. To obtain faster execution, this option requires a multiprocessor system. On a single-processor system, the resulting executable usually runs more slowly with this option. Solaris 8 also has two pthread libraries, M:N and 1:1, located in /usr/lib and /usr/lib/lwp, respectively. It defaults to M:N, but the alternate libpthread can be selected at runtime by setting the dynamic linker search path as follows: LD_LIBRARY_PATH=/usr/lib/lwp (32-bit) LD_LIBRARY_PATH_64=/usr/lib/lwp/sparcv9 (64-bit) Alternatively, the runpath can be specified at link time: cc -mt ... -R /usr/lib/lwp (32-bit) cc -mt ... -R /usr/lib/lwp/sparcv9 (64-bit) Alex Keahan ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk
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