On Aug 6, 2:13 pm, Aggie wrote:
> Dear All,
> I have been working on porting NTP to VxWorks. When I load the ntpd to
> the target, it gives me a list of unresolved symbols. Here's the list:
> SetLastError, getpagesize, sys_nerr, adjtime, pipe, wait, fork,
> sys_errlist, getaddrinfo, cannonicalize_file_name, _exit.

pipe, wait, _exit and fork are unimplemented in VxWorks (they are
process centric functions). You'll need to rewrite the functionality
to use tasks instead of processes/threads.

VxWorks doesn't use virtual memory, so getpagesize is will never be
implemented.

SetLastError is a Windows function. Check out errno for similar
functionality.

getaddrinfo's functionality can probably be ported to VxWorks easily,
but it doesn't exist.

>
> The list was longer when I first start, I managed to get rid off some
> item on the list by making some modification on the kernel
> configuration. But now I'm stuck, no matter how I changed the kernel,
> I couldn't reduce the list any further. I realize that fork() and
> wait() are implemented in vxworks. Have anyone done a similar project
> before? how did you workaround it? and adjime().
>
> Thank you very much in advance.

Check out this page: http://www.eecis.udel.edu/~mills/ntp...s/vxworks.html

Looks like someone might have already done this..

- Matt