On Sat, Aug 25, 2007 at 10:45:10AM +0800, zhijun wrote:
>
> I really appreciate your kindness to explain this for me.
>
> ::array ... p | ::eval '<p/Kn | =Kn' gives pure uintptr_t's so it works
> well with mdb pipeline. What I am suprized is that ::array ... p | /Kn
> *doesn't* give pure uintptr_t's, as its output has an address in the first
> line, so I expect it will break the mdb pipeline, but instead it works. Am
> I missing anything here?
>
As mentioned in the original mail, dcmds have a way of 'knowing' when
they are in pipe context (DCMD_PIPE_OUT) and can alter their output
based on this. For the '/' operator, you can find this check in
print_arglist():
if (DCMD_HDRSPEC(flags) && (flags & DCMD_PIPE_OUT) == 0) {
Are you just curious, or are you trying to solve a particular problem?
As Jonathan mentioned, there are more efficient ways to accomplish what
you have demonstrated thus far.
- Eric
--
Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock
