Is it possible to use the libthr.a file on a Redhat Linux?

[Shaowei Wang (wsw)]

On Tue, Mar 31, 2009 at 4:40 PM, Srinivas Ganji <srinivasganji at gmail.com>wrote:

> Dear All,
>
> I have tried to use the libthr.a library for compiling an application which
> is working fine on Redhat system with libpthread library. However, I end up
> with the following errors.
>
>
>
> ../lib/linux/libthr.a(thr_sem.o): In function `_sem_init':
>
> thr_sem.c:(.text+0x100): undefined reference to `ksem_init'
>
> thr_sem.c:(.text+0x115): undefined reference to `ksem_destroy'
>
> ../lib/linux/libthr.a(thr_sem.o): In function `_sem_destroy':
>
> thr_sem.c:(.text+0x216): undefined reference to `ksem_destroy'
>
> ../lib/linux/libthr.a(thr_sem.o): In function `_sem_timedwait':
>
> thr_sem.c:(.text+0x2ad): undefined reference to `ksem_timedwait'
>
> ../lib/linux/libthr.a(thr_sem.o): In function `_sem_wait':
>
> ....
>
> ....
>
> ....
>
>
>
> collect2: ld returned 1 exit status
>
> make: *** [target] Error 1
>
>
>
> So, I have also mentioned the libc.so.7(This is also a FreeBSD libc
>
> library) library in our application to remove the above undefined
> references. So, at that time I got the following errors.
>
>
>
> /usr/bin/ld: errno@@FBSD_1.0: TLS definition in /lib/libc.so.6 section
> .tbss
> mismatches non-TLS definition in ../lib/linux/libc.so section .bss
>
> /lib/libc.so.6: could not read symbols: Bad value
>
>
>
> Here, the lib/libc.so.6 is a Redhat libc library where as
> ../lib/linux/libc.so is a FreeBSD library (libc.so.7).
>
>
>
> My question is: Is it possible to use the FreeBSD libthr.a library on a
> Redhat Linux distribution?
>

As I known, it's not possible unless you port the libthr to Linux system.

Linux use clone() system call to implement thread library and FreeBSD use a
different way(KSE).


>
>
>
> Thanks in advance.
>
>
>
> With Regards,
>
> Srinivas G
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