Why Does "java_global_trees" Exist?

[Bryce McKinlay]

Ranjit Mathew wrote:

>Many a time have I been smitten/flummoxed by GDB
>proclaiming a supposedly global variable to be non-existent
>only to discover it being a macro aliasing one of the
>elements of "java_global_trees".
>
>Wild guess: is it to have a convenient root for
>the GCC garbage collection mechanism?
>  
>

Yeah, this is a leftover from earlier incarnations of GCC's garbage 
collector. These days we can use GTY markers to easily register roots, 
so the java_global_trees stuff could be removed. I've found it annoying 
in the past too, so I vote to get rid of it.

Regards

Bryce