On Fri, Nov 11, 2011 at 07:48:24PM +0100, Émeric Maschino wrote:
> 2011/11/11 Ben Hutchings <b...@decadent.org.uk>:
> > That version just calls the libc implementation of accept4(), which
> > won't work until libc is rebuilt. You need to define __NR_accept4 and
> > call syscall(__NR_accept4, ...) in the test program instead.
>
> Isn't Wheezy eglibc 2.13-21 supposed to already implement accept4()?
That is a little difficult when the system call is not even defined
for an architecture! Until it is rebuilt against the new kernel
header, I assume it will use a fallback implementation that always
fails.
> I've nevertheless modified test_accept.c following your guidelines. I
> also had to rename accept4() to __accept4(), otherwise it will
> conflict with non-static definition of accept4() in
> /usr/include/ia64-linux-gnu/sys/socket.h (isn't this the eglibc
> declaration?)
Right.
> I'm however still getting the error message stating that accept4() is
> not implemented, although I've rebuilt my kernel with the patches and
> booted the system with it:
>
> emeric@longspeak:~/Documents$ ./test_accept4
> =======================================
> Calling accept4(): flags = 0
> accept4(): Function not implemented
[...]
I have no idea why this would still fail; maybe you need to change
something additional in the kernel. Ask the linux-ia64 mailing list.
Ben.
--
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
- Albert Camus
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