On Sep 5, 12:08 am, Jason <ja...@njkfrudils.plus.com> wrote:
> On Saturday 04 September 2010 22:31:45 Cactus wrote:
>
>
>
>
>
> > On Sep 4, 9:34 pm, Cactus <rieman...@gmail.com> wrote:
> > > On Sep 4, 9:04 pm, Jason <ja...@njkfrudils.plus.com> wrote:
> > > > On Saturday 28 August 2010 11:56:18 jason wrote:
> > > > > ----- Original Message -----
> > > > > From: "Cactus" <rieman...@gmail.com>
> > > > > To: "mpir-devel" <mpir-devel@googlegroups.com>
> > > > > Sent: Saturday, August 28, 2010 10:27 AM
> > > > > Subject: [mpir-devel] Re: mingw64
>
> > > > > On Aug 28, 9:59 am, "jason" <ja...@njkfrudils.plus.com> wrote:
> > > > > > Hi
>
> > > > > > I think I know why the mingw64 dll builds fail , for multiple
> > > > > > functions files ie aors_err2_n.asm , in the MSVC build yasm emits
> > > > > > both functions in a single "unit" , whereas under mingw64 we
> > > > > > create two links add and sub versions (like we do for unix) , and
> > > > > > also yasm still emits both functions , so we end up with two
> > > > > > copys. The same must happen in the static build , but it doesn't
> > > > > > seem to matter?
> > > > > > I was planning to get rid of such complications ( or rather move
> > > > > > them to development machines only , much like autotools generates
> > > > > > Makefile.in) , a small script should easily take of it.
>
> > > > If we do it that way , then the x86_64w asm files with multifunction
> > > > files ie aors_err1.asm will need to have the same m4 macro's as the
> > > > linux ones. It's probably easier just to get rid of them altogether
> > > > (not even a pre-dist stage) For the time being we only need to remove
> > > > the x86_64 and x86_64w ones , we can leave the other cpu's to later.
> > > > For x86_64 we only have two of them anyway aors_err1_n and aors_err2_n
> > > >  , and I think x86_64w is the same. Note this still leaves the
> > > > alternative entry point functions ie addlsh_n and addlsh_nc , but for
> > > > linux at least this is automatic , and we dont need any configure
> > > > magic for it.This at least gets us part way towards our goal.
>
> > > > > I wwould be very happy to make several changes that are related to
> > > > > this issue, all of which would make all the Windows builds much
> > > > > easier:
>
> > > > > 1. All files emit only one routine and only one symbol (this would
> > > > > expand the source for some 'carry in' and 'no carry in' variants);
> > > > > -----------------------
> > > > > I was hoping to keep files with multiple entry points , but yeah , I
> > > > > cant see how we can do it in general. For the add_n and add_nc we
> > > > > could do it with macros , but for the divide it's a bit harder , and
> > > > > we might need to maintain the function version for full backwards
> > > > > dll compatibility. --------------
> > > > > 2. A strict equality between C and assembler file names and the
> > > > > symbols they emit (ignoring the prefix);
> > > > > 3. A new extension (i.e not c, cc, as, asm, ..)  for files that are
> > > > > not compiled directly but are included in other files.
> > > > > ----------------------
> > > > > makes sense
> > > > > ---------------------
> > > > > I don't think it matters issuing HAVE_NATIVE defines for all
> > > > > assembler symbols even if they aare complete C replacements so we
> > > > > can (I think) ignore this.
> > > > > ------------------------
> > > > > I think we may have to keep some , mainly for those combined
> > > > > functions that would require temp space if we dont have a native one
> > > > > ------------------------
> > > > > This would allow a major simplification in the Windows builds since
> > > > > it would then be possible to generate most of the build files
> > > > > automatically for any Windows build tools.
> > > > > -----------------------
> > > > > yeah
> > > > > -----------------------
>
> > > > > > For the t-locale test , is there no way that MSVC will pass it ? ,
> > > > > > if so I'll ifdef it out , with ! _MSC_VER , because under mingw I
> > > > > > think I can get it to pass , it looks like the redefinition of
> > > > > > localenv just needs a DECLSPEC
>
> > > > > I haven't tried a DECLSPEC - I see if it works.
>
> > > > > --------------------
> > > > > I get a different error message now , it did say something like
> > > > > declspec doesn't match , I think this is due to my change of config
> > > > > guess , before I had to force it , and maybe that changed one of the
> > > > > lib search paths? -----------------------------
>
> > > > > ---------------------------
>
> > > > >         Brian
>
> > > Hi Jason,
>
> > > I don't really understand this.
>
> > > I assumed that we put these into assembler because their speed matters
> > > but you are now saying we can do without them.
>
> > > But this doesn't make sense - why did we bother with them in the first
> > > place?
>
> > > What is wrong with the two files solution - files for add and subtract
> > > that use a common include file that contains the 'aors' code?
>
> > >     Brian
>
> > I can see that you have just done this in x86_64 - do you want me to
> > do it in x86_64w?
>
> >    Brian
>
> Yes , cheers , I think we only need the aors_err1_n and aors_err2_n for the
> moment , ie the ones where we have one piece of source code which generates
> two pieces of object code , the ones where one piece of source code generates
> one piece of object code (ie mpn_add_n , mpn_add_nc) but exports two symbols
> (the  entry points) we dont need to do yet  to get mingw64 working . Mind you
> if we want one exported symbol per file , then we have to come up with
> something in the end.All our current files that export two symbols are all
> mpn_blah_n and mpn_blah_nc , although I think the division functions could
> also benefit from this  , ie like mpn_divrem_1 and mpn_divrem_1_i where the _i
> signifys we have a precalculated inverse , and also perhaps mpn_mul_basecase
> and mpn_addmul_basecase
>
> Jason

Done.

   Brian

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