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2 Commits

Author SHA1 Message Date
Vineet Gupta 62fb64034d ARC: entry.S: micro-optimize Trap handler 
Elide the need to re-read ECR in Trap handler by ensuring that
EXCEPTION_PROLOGUE does that at the very end just before returning
to Trap handler

ARCv2 EXCEPTION_PROLOGUE already did that, so same for ARcompact and the
common trap handler adjusted to use cached ECR

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2015-06-19 18:09:39 +05:30
Vineet Gupta 6d1a20b1d2 ARC: entry.S: split into ARCompact ISA specific, common bits 
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2015-06-19 18:09:38 +05:30