[Buildroot] meaning of BR2_arm_dunno

Peter Korsgaard jacmet at uclibc.org
Thu Jan 29 16:16:44 UTC 2009

>>>>> "Sven" == Sven Neumann <s.neumann at phase-zero.de> writes:


 >> default apcs-gnu        if BR2_ARM_OABI
 >> default atpcs           if BR2_arm_dunno
 >> default aapcs           if BR2_arm_dunno
 >> default aapcs-linux     if BR2_ARM_EABI

 Sven> As you can see from the linked thread, the compiler we ended up
 Sven> with works nicely for userspace, but it cannot be used to build
 Sven> a kernel. It may be a good idea to set BR2_GCC_TARGET_ABI to
 Sven> aapcs-linux even if BR2_iwmmxt is selected.

Ok, thanks.

 >> Could you give it a try with those 2 lines changed?

 Sven> What exactly do you want me to try? I guess I would have to
 Sven> remove my .config and go thru menuconfig, select ARM iwmmxt and
 Sven> then check what gets sets for BR2_GCC_TARGET_TUNE,
 Sven> BR2_GCC_TARGET_ARCH and BR2_GCC_TARGET_ABI? Is that correct?

I meant with the apcs-gnu for OABI, and aapcs-linux for EABI, wasn't
that your original problem?

Bye, Peter Korsgaard

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