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Top Forums Programming Unable to reference sysfs on Linux. Post 92618 by mbb on Tuesday 13th of December 2005 07:16:34 AM
Old 12-13-2005
Unable to reference sysfs on Linux.

I am porting C code to a linux system but I am unable to link a call to the sysfs function.

An excerpt from my code is:

Code:
if (fstat(fileno(TrCtl.Fp), &fsstat) != -1)
{
    (void) sysfs(1, fsname);
    if (strcmp(fsname, "nfs"))
    {
        (void) lockf(fileno(TrCtl.Fp), F_LOCK, 0L);
    }
}

This code is compiled into a library, but when linked to the main executable I get the following error:

Code:
/usr/bin/gcc -o oracle_connect oracle_connect.o -L /usr/lib -L /home/mb/build/dev/Lib -ltrace /home/mb/build/dev/Lib/libtrace.a

(traceopen.o)(.text+0x172): In function `traceopen':
: undefined reference to `sysfs'
collect2: ld returned 1 exit status

The man page suggests that I do not need to reference any particular headers or files.

I have checked the libc library and it does contain sysfs.o,
but I am at loss as how to reference it.

Does any one know? Is it even possible in Linux?


My versions are:

Red Hat Enterprise Linux AS release 3 (Taroon)
Linux ccabccesd2 2.4.21-4.ELsmp #1 SMP Fri Oct 3 17:52:56 EDT 2003 i686 i686 i38 6 GNU/Linux

Thanks
 

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