PATCH add more syntax for shared library probing

[Frank Ch. Eigler]

scox wrote:

> [...]

Looks good!

> 2. Similar for -L.  Perhaps filling in the wildcard with the matched
> library would be useful.

Yup.  pp() etc. should get the fully resolved name.

> [...]
> +/* For each entry in the .dynamic section in the current module call 'callback', use
> + * 'data' for the dynamic entry buffer return the entry type and 'object' in case
> + * 'callback' is a method */
> [...]

This ld.so-emulation code looks promising, but the risk of giving
results inconsistent with actual ld.so would have to be guarded
against.  Have you considered PR12560's alternate approach?

- FChE