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Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs

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2008/7/28 Steve Peters <steve@fisharerojo.org>:
> <snip from Makefile.SH>
>        cygwin*)
> -               linklibperl="-lperl"
> +               shrpldflags="$shrpldflags -Wl,--out-implib=libperl.dll.a
> -Wl,--image-base,0x52000000"
> +               linklibperl="-L. -lperl"
> </snip>
>
> There's a bit of magic in the shrpldflags.  Some explanation in
> comments of the image-base value would be helpful for future
> maintenance.
Magicians should describe their magic tricks? :)
Ok, will do.
I'll add something like:
The image base is optional but useful to avoid rebaseall on Cygwin.
Due to its fork implementation Cygwin requires unique image bases
through all dll's.
This is calculated from 0x52000000 downwards. The python and perl
dll's fork the most,
and load the most dll's, therefore we set the perl dll at the very end
of the rebase range
so that required rebases are more unlikely.
-- 
Reini Urban
https://phpwiki.org/ https://murbreak.at/

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• [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by Reini Urban
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by H.Merijn Brand
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by H.Merijn Brand
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by Reini Urban
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by H.Merijn Brand
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by Reini Urban
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by Steve Peters
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by Reini Urban
• Re: [PATCH] Cygwin build harmonization, remove cygwin/Makefile.SHs by H.Merijn Brand