[PATCH] Blackfin syscall change

[Jie Zhang]

This patch replaces "RAISE 0;" with "EXCPT 0;" for syscall in Blackfin
libgloss. The syscall mechanism in libgloss is used for simulator and
hardware board. "RAISE 0" is OK for simulator, but cannot be used for
hardware board. Using a valid instruction will ensure predictable
behavior of application on hardware board although currently there is no
non-trivial implementation of syscall for hardware board. Please review
and commit. Thanks.


Jie


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