From: Nick Desaulniers <ndesaulniers@google.com>
Date: Mon, 24 Oct 2022 19:45:17 +0000 (+0100)
Subject: ARM: 9264/1: only use -mtp=cp15 for the compiler
X-Git-Tag: v6.6.7~3915^2~20
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=26b12e084bce78f339bf9069ff25e0128313d9bc;p=platform%2Fkernel%2Flinux-starfive.git

ARM: 9264/1: only use -mtp=cp15 for the compiler

Avoids an error from the assembler for CONFIG_THUMB2 kernels:

clang-15: error: hardware TLS register is not supported for the thumbv4t
sub-architecture

This flag only makes sense to pass to the compiler, not the assembler.

Perhaps CFLAGS_ABI can be renamed to CPPFLAGS_ABI to reflect that they
will be passed to both the compiler and assembler for sources that
require pre-processing.

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 34bf504..5fdd6b9 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -111,7 +111,7 @@ CFLAGS_ABI	+= -meabi gnu
 endif
 
 ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y)
-CFLAGS_ABI	+= -mtp=cp15
+KBUILD_CFLAGS	+= -mtp=cp15
 endif
 
 # Accept old syntax despite ".syntax unified"