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Date: Thu, 09 Feb 2006 20:26:00 -0000
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From: Eli Zaretskii <eliz@gnu.org>
To: "Mark Kettenis" <mark.kettenis@xs4all.nl>
CC: gdb-patches@sourceware.org
In-reply-to: <15661.192.87.1.22.1139496247.squirrel@webmail.xs4all.nl> 	(mark.kettenis@xs4all.nl)
Subject: Re: RFA: Support Windows extended error numbers in safe_strerror
Reply-to: Eli Zaretskii <eliz@gnu.org>
References: <20060203215455.GA3501@nevyn.them.org>     <20060206173550.GB22947@nevyn.them.org>     <200602062254.k16MsagK009925@elgar.sibelius.xs4all.nl>     <20060206225829.GA31895@nevyn.them.org>     <20060208000855.GA5040@nevyn.them.org>     <200602082107.k18L7xRh013417@elgar.sibelius.xs4all.nl>     <umzh14iub.fsf@gnu.org>     <200602082310.k18NAQNe027038@elgar.sibelius.xs4all.nl>     <E1F76jX-0006eR-I8@fencepost.gnu.org>     <15661.192.87.1.22.1139496247.squirrel@webmail.xs4all.nl>
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> Date: Thu, 9 Feb 2006 15:44:07 +0100 (CET)
> From: "Mark Kettenis" <mark.kettenis@xs4all.nl>
> Cc: mark.kettenis@xs4all.nl, gdb-patches@sourceware.org
> 
> >   int gdb_select (...)
> >   {
> > 	if (select_hook)
> > 	   return (*select_hook) (...);
> > 	else
> > 	   return select (...);
> >   }
> >
> > We make `select_hook' a global pointer to a function, and then MinGW
> > can define its own emulation on win32-something.c and plug its address
> > into `select_hook'.
> 
> There is absolutely no reason for this additional complexity.  GDB will
> never be able to run on two different hosts at once.

The reason isn't to allow GDB to run on two different hosts, it's to
have a cleaner code and a simpler way of overriding a certain API.