From: Lin Yongting Date: Wed, 26 Nov 2014 13:38:33 +0000 (+0100) Subject: ARM: 8225/1: Add unwinding support for memory copy functions X-Git-Tag: omap-for-v3.20/drop-legacy-3517~102^2~1^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=279f487e0b471577e2b3c134e2ff9af939129d0f;p=pandora-kernel.git ARM: 8225/1: Add unwinding support for memory copy functions The memory copy functions(memcpy, __copy_from_user, __copy_to_user) never had unwinding annotations added. Currently, when accessing invalid pointer by these functions occurs the backtrace shown will stop at these functions or some completely unrelated function. Add unwinding annotations in hopes of getting a more useful backtrace in following cases: 1. die on accessing invalid pointer by these functions 2. kprobe trapped at any instruction within these functions 3. interrupted at any instruction within these functions Signed-off-by: Lin Yongting Signed-off-by: Russell King --- Reading git-diff-tree failed