Paul Gevers wrote:
[please cc me, I am not subscribed]
Hi all,
I have the intention to briefly try out if I can get fpc (the FreePascal
Compiler) to run on arm64, allowing several build dependent packages to
also build. (That is, when not somebody else is already busy with that).
I don't know if fpc is capable of doing at all,
Freepascal compiles directly to assembler so getting it to run on a new
CPU family means MAJOR porting work.
There is some attempt at an arm64 port upstream (
http://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/compiler/aarch64/ )
but it doesn't look like it's been significantly touched in over a year
and http://bugs.freepascal.org/view.php?id=25042 suggests it's not in a
usable state.
I suspect that when this does arrive it will be too big/intrusive to
easilly backport so I suspect we will have to wait for a new major
upstream release after they get it working.
Sadly I think it's highly unlikely we will see an arm64 port of
freepascal in time for jessie.
I failed so far on kFreeBSD
For kfreebsd it's easy enough to get the compiler to run (freepascal
already has a freebsd port) but getting it to link against C libraries
is harder. When freepascal links against C libraries it uses a peice of
special startup code called "cprt0.o" to set things up. cprt0.o is built
from cprt0.as
Neither the linux version or the freebsd version of that file will
result in a successful link with C libaries on kfreebsd. Someone with a
deep understanding of x86 assembler and binary conventions needs to look
at the code (probablly both the freebsd and linux variations of it) and
write a version that will work on kfreebsd.
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