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3 Commits

Author SHA1 Message Date
Kees Cook 92652cf986 xtensa: Implement "current_stack_pointer" 
To follow the existing per-arch conventions replace open-coded uses
of asm "sp" as "current_stack_pointer". This will let it be used in
non-arch places (like HARDENED_USERCOPY).

Cc: Chris Zankel <chris@zankel.net>
Cc: Marc Zyngier <maz@kernel.org>
Cc: linux-xtensa@linux-xtensa.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/lkml/CAMo8BfJFJE-n3=AF+pb9_6oF3gzxX7a+7aBrASHjjNX5byqDqw@mail.gmail.com
 2022-02-25 18:21:23 -08:00
Max Filippov 5fdf377d80 xtensa: move oprofile stack tracing to stacktrace.c 
Old oprofile interface will share user stack tracing with new perf
interface. Move oprofile user/kernel stack tracing to stacktrace.c to
make it possible.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
 2015-08-17 07:32:49 +03:00
Max Filippov 3e4196a5cc xtensa: add stacktrace support 
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
 2013-05-09 01:07:10 -07:00