[PATCH 0/5] arm: LLVMLinux: Add current_stack_pointer

[behanw]

From: Behan Webster <behanw@xxxxxxxxxxxxxxxxxx>

The LLVMLinux Project is working to be able to build the Linux kernel with
clang/LLVM. With the release of LLVM 3.3 clang is now able to compile the Linux
kernel with a number of small patches (available from the LLVMLinux git repo).

These patches add a macro to get the current stack pointer which allows for a
single place in which to do so with ASM. Before this named registers (a gcc
extension) was used to get the stack pointer. Using ASM is a more portable way
of getting the stack pointer which works with both gcc and clang.  This macro
is of the same name used in the X86 arch.

Behan Webster (5):
  arm: LLVMLinux: Add current_stack_pointer macro for ARM
  arm: LLVMLinux: use current_stack_pointer for percpu
  arm: LLVMLinux: Use current_stack_pointer for return_address
  arm: LLVMLinux: Use current_stack_pointer in save_stack_trace_tsk
  arm: LLVMLinux: Use current_stack_pointer in unwind_backtrace

 arch/arm/include/asm/percpu.h      | 4 ++--
 arch/arm/include/asm/thread_info.h | 9 +++++++++
 arch/arm/kernel/return_address.c   | 3 +--
 arch/arm/kernel/stacktrace.c       | 4 +---
 arch/arm/kernel/unwind.c           | 3 +--
 5 files changed, 14 insertions(+), 9 deletions(-)

-- 
1.8.1.2

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