Le 06/02/2012 12:37, Aneesh V a écrit :
When U-Boot/SPL is built using the Thumb instruction set the
toolchain has a potential issue with weakly linked symbols.
If a function has a weakly linked default implementation in C
and a real implementation in assembly GCC is confused about the
instruction set of the assembly implementation. As a result
the assembly function that is built in ARM is executed as
if it is Thumb. This results in a crash.
We need to investigate further to see if this is a toolchain
issue or an issue with our usage of it. In the meanwhile, we
can workaround the issue by having both the weakly linked alias
and the real implementation in C.
I would tend to NAK a patch submission where an issue is known and
investigation is considered but is actually bypassed by a workaround.
These tend to turn from 'temporary fix' to 'old crust' with time,
because there is no incentive for a better solution when the quick fix
"works, after all".
Amicalement,
--
Albert.
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