Marina Goldburt wrote:
Hi,
I'm interested in the task of porting classlib to the 64bit platform
(em64t/amd64).
Thanks you! Welcome!
At this moment, classlib's source structure and build system doesn't
support
the diversity of platforms.
hmm...
Do you mean VM or classlib? I'm not familiar with current VM(DRL,
JCHEVM, BootJVM...)'s structure, but for classlib, IIRC we have
discussed these issue before, and seems the agreement is to layout them
into directories,
For example, the LUNI module has platform dependent natives, while
Security has platform dependent java codes, they are layout as this:
src -- main -- java(native) -- share
-- linux
-- windows
Let's discuss what changes have to be made to support other platforms.
One way is to move platform-dependent to the appropriate directory. For
example,
port--linux --ia32
--em64t
--ipf
makefile
and to add platform determination and proper files selection to the
makefile.
The other way is to select the platform-dependent code by the
preprocessor
difine directives and to include the platform determination and the
difines
setting to the top-level build files (unfortunatly it doesn't work
with asm
files).
Any thoughts?
Thanks, Marina.
--
Paulex Yang
China Software Development Lab
IBM
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