Make libgcj.so.9 smaller

[David Daney]

Andrew Haley wrote:
> ffileppo wrote:
> 
>> I compiled gcj for arm using gcc 4.3.0
>> I see that libgcj.so.9 is very big (about 72MB).
> 
> 30M after you strip debuginfo.
> 
>> Which options should I use when configuring to make libgcj.so.9 smaller? I'd like to disable net,awt ecc..
>> Is there a list of option available for this purpose?
> 
> It's a difficult problem or it would have been done already.  Parts
> of the essential java code (such as the class loader) depend on
> networking, for example.  The Java library is interconnected in
> all sorts of interesting places.
> 
> David Daney has done some work in this area, such as reducing
> the size of the reflection data.
> 

Right, try hacking up the libgcj Makefile and rebuilding libgcj with 
-freduced-reflection.

Also try -static-libgcj, although with this option you will have to 
force several classes and resource files to be linked manually (see the 
gcc wiki article on -static-libgcj).

David Daney