Thanks for explanation.
Alex Dupre wrote:
Simple explanation: the stubs are there because you can create a
thread-safe library and use it in a single-threaded or multi-threaded
program. Once linked to a multi-threaded program (with -pthread) the
library gets access to the real libthr implementations of the pthread_*
functions, while in the single-threaded program the library will use the
libc stubs without affecting performance.
If you encounter errors probably your program/libraries dynamically
loads shared libraries that link with libthr and so you eventually call
some pthread_* functions from libc and others from libthr.
Yes, it was the case. And it was not rather simple to find out this :)
And one more interesting thing. I have a sample threaded application. On
one system it was implicitly linked to libthr (on 8.0-stable), and on
other system (8.1-RELEASE) it had to be explicitly stated "-lpthr"...
--
Best regards,
Alexander Pyhalov,
system administrator of Computer Center of South Federal University
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