linux-stable.git/arch/arm64/kernel/return_address.c, branch v4.2 Linux kernel stable tree arm64: LLVMLinux: Use global stack pointer in return_address() 2014-09-08T13:39:19+00:00 Behan Webster behanw@converseincode.com 2014-08-27T04:29:34+00:00 a4ceab1adbe960c781e9e2f659d7f7840eefd786 The global register current_stack_pointer holds the current stack pointer. This change supports being able to compile the kernel with both gcc and clang. Author: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 
The global register current_stack_pointer holds the current stack pointer.
This change supports being able to compile the kernel with both gcc and clang.

Author: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arm64: ftrace: Add CALLER_ADDRx macros 2014-05-29T08:08:33+00:00 AKASHI Takahiro takahiro.akashi@linaro.org 2014-04-30T09:54:35+00:00 3711784ece66d39352a0dbb6da40e097a77da057 CALLER_ADDRx returns caller's address at specified level in call stacks. They are used for several tracers like irqsoff and preemptoff. Strange to say, however, they are refered even without FTRACE. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> 
CALLER_ADDRx returns caller's address at specified level in call stacks.
They are used for several tracers like irqsoff and preemptoff.
Strange to say, however, they are refered even without FTRACE.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>