Hi Wolfgang, On Monday 04 February 2008, Wolfgang Denk wrote: > A possible approach to this problem is to avoid using a global > register variable and use a plain global variable instead. The > necessary code for this is already there (just commented out); when I > implemented this initially, I decided to use a global register > variable because it gave slightly smaller code. > > Here is an overview of the effect (test build of current top of tree > for the "katmai" (PPC440SPe) board): > > ELDK Version Register-Var. Globale Var. > text data bss dec text data bss dec > 4.0 243292 13700 322340 579332 244160 13808 322340 580308 > 4.1 243292 13700 322340 579332 244160 13808 322340 580308 > 4.2 section ... overlaps previous 245496 13188 322340 581024 > > As you can see, the difference in code size is less than 1 KiB.
Nice. > My suggestion is to change the code to use a plain global variable, > however I need feedback if we can / want to do that as it effects > *ALL* PowerPC boards. Acked-by for this change from me. I tested successfully on AMCC Katmai, which now fits again in the 256k with GCC 4.2.2. Thanks. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] ===================================================================== ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
