Hexagon: Add basic stacktrace functionality for Hexagon architecture.
Hexagon: Add basic stacktrace functionality for Hexagon architecture.

Signed-off-by: Richard Kuo <5c405e4535fa35126dd73e0f658fb1523e5f9f8e@codeaurora.org>
Signed-off-by: Linas Vepstas <ba5b7161287ad232d67ab9ebf53b27130547a421@codeaurora.org>
Acked-by: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs