Sent: Tuesday, August 11, 2009 11:58 PM Subject: Re: [U-Boot] "raise" not defined, when compiler uses its own div0
> Dear Ulf Samuelsson, > > In message <4a81e724.3070...@atmel.com> you wrote: >> >> > Try setting USE_PRIVATE_LIBGCC=yes in your envrionment, like >> > >> > USE_PRIVATE_LIBGCC=yes make ... >> >> I have done two fixes to make it build with openembedded. >> 1) Define "raise" in libarm/board.c which calls hang. > > Did you use "USE_PRIVATE_LIBGCC=yes", and it still needed raise(), > or did you implement that workaround instead of using > "USE_PRIVATE_LIBGCC=yes". > > Normally no raise() should be needed when using USE_PRIVATE_LIBGCC=yes Instead, since I think it is ugly. If I build u-boot from the u-boot dir outside the buildsystem, it also means a lot of typing - If I remember to do it... Why not make it a default mode? Then there is no problem anywhere and the patch is not needed. >> 2) Changes mapi to "-mapi=aapcs-linux" in cpu/arm926ej-s/config.mk >> Some toolchains want to keep apcs-gnu I guess. > > I wonder why we enforce a specific API at all - would it not be better > to use the toolchain provided default settings? I tried that, but that did not work with openembedded. ' I suspect that the openembedded libraries are built with -mapi-aapcs-linux. -mapi=apcs-gnu is not a problem with buildroot. A similar thing: For ARM, "-msoftfloat" is enforced, and I think that should be removed. AFAIK there are no floating point stuff in u-boot, and why then enforce something which might or might not work for an arbitrary toolchain. Is there any toolchain that will not work, if -msoftfloat is removed? > > Best regards, > > Wolfgang Denk > > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de > Single tasking: Just Say No. > Best Regards Ulf Samuelsson u...@atmel.com Atmel Nordic AB Mail: Box 2033, 174 02 Sundbyberg, Sweden Visit: Kavallerivägen 24, 174 58 Sundbyberg, Sweden Phone +46 (8) 441 54 22 Fax +46 (8) 441 54 29 GSM +46 (706) 22 44 57 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot