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SubjectRe: [PATCH 0/6] LLVMLinux: Patches to enable the kernel to be compiled with clang/LLVM
On Tue, 8 Jul 2014, behanw@converseincode.com wrote:

> From: Behan Webster <behanw@converseincode.com>
>
> The LLVMLinux project aims to fully build the Linux kernel using both gcc and
> clang (the C front end for the LLVM compiler infrastructure project).
>
> Clang only supports global named registers for non-allocatable registers like
> the stack pointer. By centralizing the definition of current_stack_pointer, the
> use of named registers for ARM remains largely unchanged while working for both
> gcc and clang.

You verified that the compiled code is identical on gcc? If so:

Acked-by: Nicolas Pitre <nico@linaro.org>

>
> Behan Webster (6):
> arm: LLVMLinux: Add global named register current_stack_pointer for
> ARM
> arm: LLVMLinux: Use current_stack_pointer to calculate pt_regs address
> arm: LLVMLinux: Use current_stack_pointer for return_address
> arm: LLVMLinux: Use current_stack_pointer in save_stack_trace_tsk
> arm: LLVMLinux: Calculate current_thread_info from
> current_stack_pointer
> arm: LLVMLinux: Use current_stack_pointer in unwind_backtrace
>
> arch/arm/include/asm/ptrace.h | 5 ++---
> 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, 12 insertions(+), 12 deletions(-)
>
> --
> 1.9.1
>
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