[BusyBox] choice for reserving buffers

[Erik Andersen]

On Fri Apr 20, 2001 at 10:14:23AM -0700, Larry Doolittle wrote:
> 
> Nobody called me on this statement, which was simply a case of
> my not thinking through the problem clearly enough.  A quick
> experiment this morning shows me that:
>     char buffer[len];           /* goes on stack */
>     static char buffer[len];    /* goes in BSS */
>     char *buffer=xmalloc(len);  /* allocates from heap */
> 
> The attached patch adds a BB_FEATURE_BUFFERS_GO_IN_BSS
> configuration option, which I'm sure Vladimir will want
> to turn on for his builds.   ;-)
> 
> Results of running size on i386 BusyBox using gcc-2.7.2.3,
> current CVS copy, starting with the base configuration but
> with rpmunpack, tftp, and tr turned on.
>    text    data     bss     dec     hex filename
>  128391   11320   15376  155087   25dcf busybox-heap
>  128419   11320   15376  155115   25deb busybox-stack
>  128343   11320   50456  190119   2e6a7 busybox-bss
> 
> Enjoy!

Excellent!  This is a welcome addition,

 -Erik

--
Erik B. Andersen   email:  andersen at lineo.com
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