Amaury wrote:
>Well, not C only code. There are 140 occurrences of "cast_adr_to_int" in
>RPython code...
OK, this is really helpful. It's exactly the kind of info I was hoping to hear
when starting this thread, and what I was looking for on the web site before
that.
I the spirit of getting all this info accessible on the web site, I'm going to
try and summarize it. I originally went looking for this at
http://doc.pypy.org/en/latest/windows.html so maybe you can add this there. I
also suggest, since you want Windows volunteers, you add a greyed out win 64
entry to http://pypy.org/download.html#default-with-a-jit-compiler like you did
for the Linux ARM version, but add a link titled "Needs your help" to this info
as well. The curious will click.
This took more emails than I expected to figure this out, so thanks to everyone
who spent the time and provided the needed details.
-Roger
Windows 64
The Windows 64 build is not working because of a couple of issues.
1. The size of long is different on Linux versus Windows, and that affects code
that moves eight byte pointers to longs or back (see
http://en.wikipedia.org/wiki/64_bit#64-bit_data_models). Most of the C code
has been reviewed and fixed by replacing the affected longs with ptrdiff_t.
The RPython code has the same issue. If you search *py files for
cast_adr_to_int and cast_ptr_to_int, and their inverses cast_int_to_add,
cast_int_to_ptr, there are over a hundred cases, although half are in test
code. There are even more cast_int* matches, some of which might need
changing. You'll need to run the tests, make some changes, and then run the
tests again to verify the change . You'll want to start with rpython before
doing pypy.
2. rpython/jit/backend/x86: this jit code might need some adjustment to how
win64 handles frames.
Running tests will be something like "~/pypy$ py.test rpython"
(http://doc.pypy.org/en/latest/getting-started-dev.html#running-pypy-s-unit-tests).
So it's download, get the dependencies (including pytest), translate (build),
test, and then you're on your way.
If you'd like something simpler to get started, have a look at
http://buildbot.pypy.org/summary?builder=own-win-x86-32. Fixing these helps
both the win32 and the win64 builds!
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