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Date:      Tue, 14 Aug 2001 08:25:28 -0400
From:      "Daniel M. Eischen" <eischen@vigrid.com>
To:        Peter Wemm <peter@FreeBSD.org>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/include stdio.h src/lib/libc  Makefilesrc/lib/libc/stdio findfp.c
Message-ID:  <3B7918B8.84C6B879@vigrid.com>
References:  <200108132148.f7DLmji84262@freefall.freebsd.org>

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Peter Wemm wrote:
> 
> peter       2001/08/13 14:48:44 PDT
> 
>   Modified files:
>     include              stdio.h
>     lib/libc             Makefile
>     lib/libc/stdio       findfp.c
>   Log:
>   Rip out the old __stdin/out/err stuff. It was completely 100% useless. :-(
>   It was foiled because of dynamic copy relocations that caused compile-time
>   space to be reserved in .bss and at run time a blob of data was copied to
>   that space and everything used the .bss version..  The problem is that
>   the space is reserved at compile time, not runtime... So we *still* could
>   not change the size of FILE.  Sigh.  :-(
> 
>   Replace it with something that does actually work and really does let us
>   make 'FILE' extendable.  It also happens to be the same as Linux does in
>   glibc, but has the slight cost of a pointer.  Note that this is the
>   same cost that 'fp = fopen(), fprintf(fp, ...); fclose(fp);' has.
>   Fortunately, actual references to stdin/out/err are not all that common
>   since we have implicit stdin/out/err-using versions of functions
>   (printf() vs. fprintf()).

Yes!

So do we allow FILE to be extended only after bumping the library
version once (after 5.0-release)?  And thereafter all extensions to
FILE do not need a version bump?

-- 
Dan Eischen

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