[nicl] RFR Adding -L option to jextract tool

[Henry Jen]

It print out an warning on symbols doesn’t exist in library, but still generate code for it. It’s compatible to what happens now.

In the future we may want to skip unresolvable symbols, so a return value from symbol checker is probably good unless we think using Exception is preferred.

I will test out what will happen with a function pointer parameter, like the useFunction in the attached header file. It’s a parameter declaration and eventually will have a type to be defined later. Not quite remember what exactly will happen there, will let you know when I have a chance to test it.

Cheers,
Henry

-------------- next part --------------



> On Feb 21, 2018, at 5:00 AM, Sundararajan Athijegannathan <sundararajan.athijegannathan at oracle.com> wrote:
> 
> -L option can be used to specifiy one or more shared object search paths. This path is used to search for symbols during jextract run. Any missing symbol results in a waring being issued during a jextract session. Note that the -rpath option is for runtime search of shared objects. -L is similar search path for jextract "tool time".
> 
> Webrev: http://cr.openjdk.java.net/~sundar/jextract_L/webrev.00/index.html
> 
> Thanks,
> -Sundar