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b99f27c25f
There are 3 families of Synopsys DeisgnWare ARC processors: ARCompact/ARCv1 (32-bit), ARCv2 (32-bit) and ARCv3 (32-bit and 64-bit targets). Upstream Newlib supports only ARCv1/2. This commit prepares ARCv1/2 libgloss port to be reused by ARCv3 port (except crt* files). Note that __ARC64__ macro stands for all ARCv3 targets. Signed-off-by: Yuriy Kolerov <ykolerov@synopsys.com>