#6743: cygwin metaticket: port Sage to Microsoft Windows (via Cygwin): stage 1
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make building Sage automatic
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Reporter: was | Owner: was
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.7
Component: cygwin | Resolution:
Keywords: sd31 sd32 | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by jpflori):
Replying to [comment:149 dimpase]:
> few things about Cygwin rebase/rebaseall.
>
> * we should rebase .so files, too;
I think you should go even further and only have *.dll files.
> * {{{rebase}}} has a new handy -O switch, which means rebase (new)
things, but do not touch the system dlls. So instead of rebaseall,
assuming one installs Sage on a system without previous versions of Sage
installed, one can do, at the Cygwin shell (no need to kill all the Cygwin
processes, as is the case for rebaseall):
> {{{
> $ cd $SAGE_ROOT
> $ find . -name *.dll >/tmp/list_of_files
> $ find . -name *.so >>/tmp/list_of_files
> $ rebase -O -T /tmp/list_of_files
> }}}
Good to know, thanks for the hint!
I finally get rid of the BLODA which memleak on my 64 bis W7 (that was the
Lenovo FastBoot thing, not even sure what it does, except keeping 20K of
memory in page table for every app ever launched, Cygwin or not...).
> * previous versions of Sage clog up the limited static dll address
space maintained by Cygwin in {{{/etc/rebase*}}} databases. I recommend to
wipe them out before installing the new version of Sage; i.e. remove Sage
installation(s) and {{{/etc/rebase*}}} and run rebaseall as usual, in
{{{ash}}} or {{{dash}}}.
Yup, that's a good idea.
Could you provide more info, or pointers, on why Cygwin running on a
native 32 bits system would have more address space available than one
running under wow64 on 64 bits, and so less affected by fork errors, one
as I seem to remember you evoked that at some point here?
I would be interested.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6743#comment:150>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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