ARM: refactor compiler options in config.mk

Every ARM cpu config.mk (arch/arm/cpu/{CPUDIR}/config.mk) defines:

PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float

So, this patch moves the common compiler options to arch/arm/config.mk.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

arch/arm/config.mk

@@ -16,7 +16,8 @@ endif
 endif
 
 LDFLAGS_FINAL += --gc-sections
-PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
+                     -fno-common -ffixed-r8 -msoft-float
 
 # Support generic board on ARM
 __HAVE_ARCH_GENERIC_BOARD := y

arch/arm/cpu/arm1136/config.mk

@@ -4,7 +4,6 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
 
 # Make ARMv5 to allow more compilers to work, even though its v6.
 PLATFORM_CPPFLAGS += -march=armv5

arch/arm/cpu/arm1176/config.mk

@@ -4,7 +4,6 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
 
 # Make ARMv5 to allow more compilers to work, even though its v6.
 PLATFORM_CPPFLAGS += -march=armv5t

arch/arm/cpu/arm720t/config.mk

@@ -6,8 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS +=  -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi
 # =========================================================================
 #

arch/arm/cpu/arm920t/config.mk

@@ -5,8 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -march=armv4
 # =========================================================================
 #

arch/arm/cpu/arm925t/config.mk

@@ -5,8 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -march=armv4
 # =========================================================================
 #

arch/arm/cpu/arm926ejs/config.mk

@@ -5,8 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -march=armv5te
 # =========================================================================
 #

arch/arm/cpu/arm946es/config.mk

@@ -5,8 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS +=  -march=armv4
 # =========================================================================
 #

arch/arm/cpu/arm_intcm/config.mk

@@ -5,8 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS +=  -march=armv4
 # =========================================================================
 #

arch/arm/cpu/armv7/config.mk

@@ -4,7 +4,6 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
 
 # If armv7-a is not supported by GCC fall-back to armv5, which is
 # supported by more tool-chains

arch/arm/cpu/armv7/rmobile/config.mk

@@ -4,7 +4,6 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
 
 # Make ARMv5 to allow more compilers to work, even though its v7a.
 PLATFORM_CPPFLAGS += -march=armv5

arch/arm/cpu/ixp/config.mk

@@ -8,7 +8,7 @@
 
 BIG_ENDIAN = y
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float -mbig-endian
+PLATFORM_RELFLAGS += -mbig-endian
 
 PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100
 

arch/arm/cpu/pxa/config.mk

@@ -6,8 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -mcpu=xscale
 # =========================================================================
 #

arch/arm/cpu/sa1100/config.mk

@@ -6,8 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
 PLATFORM_CPPFLAGS += -march=armv4 -mtune=strongarm1100
 # =========================================================================
 #