[v2] arm: clean up build variables

Commit Message

Douglas Goldstein Jan. 28, 2016, 4:36 p.m. UTC

This consolidates some of the different variables used for the ARM
builds. This change was prompted by the Kconfig changes but looking back
in time the CONFIG_ARM_{32,64} variables existed before Kconfig so this
should just be a generic cleanup.

Signed-off-by: Doug Goldstein <[e-mail]>
Acked-by: Jan Beulich <[e-mail]>
---
change from v1:
- switch to ifeq ($(CONFIG_ARM_64),y) from ifdef CONFIG_ARM_64
---
 xen/arch/arm/Makefile            |  8 ++++----
 xen/arch/arm/Rules.mk            | 18 ++++--------------
 xen/drivers/passthrough/Makefile |  2 +-
 3 files changed, 9 insertions(+), 19 deletions(-)

Patch

diff --git a/xen/arch/arm/Makefile b/xen/arch/arm/Makefile
index 2f050f5..9982a93 100644
--- a/xen/arch/arm/Makefile
+++ b/xen/arch/arm/Makefile
@@ -1,7 +1,7 @@ 
-subdir-$(arm32) += arm32
-subdir-$(arm64) += arm64
+subdir-$(CONFIG_ARM_32) += arm32
+subdir-$(CONFIG_ARM_64) += arm64
 subdir-y += platforms
-subdir-$(arm64) += efi
+subdir-$(CONFIG_ARM_64) += efi
 
 obj-$(EARLY_PRINTK) += early_printk.o
 obj-y += cpu.o
@@ -52,7 +52,7 @@  ALL_OBJS := $(TARGET_SUBARCH)/head.o $(ALL_OBJS)
 
 $(TARGET): $(TARGET)-syms $(TARGET).axf
 	$(OBJCOPY) -O binary -S $< $@
-ifeq (arm64,$(XEN_TARGET_ARCH))
+ifeq ($(CONFIG_ARM_64),y)
 	ln -sf $(notdir $@)  ../../$(notdir $@).efi
 endif
 
diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
index 4947e64..0aea282 100644
--- a/xen/arch/arm/Rules.mk
+++ b/xen/arch/arm/Rules.mk
@@ -11,22 +11,12 @@  CFLAGS += -I$(BASEDIR)/include
 $(call cc-options-add,CFLAGS,CC,$(EMBEDDED_EXTRA_CFLAGS))
 $(call cc-option-add,CFLAGS,CC,-Wnested-externs)
 
-arm := y
-
-ifeq ($(TARGET_SUBARCH),arm32)
 # Prevent floating-point variables from creeping into Xen.
-CFLAGS += -msoft-float
-CFLAGS += -mcpu=cortex-a15
-arm32 := y
-arm64 := n
-endif
+CFLAGS-$(CONFIG_ARM_32) += -msoft-float
+CFLAGS-$(CONFIG_ARM_32) += -mcpu=cortex-a15
 
-ifeq ($(TARGET_SUBARCH),arm64)
-CFLAGS += -mcpu=generic
-CFLAGS += -mgeneral-regs-only # No fp registers etc
-arm32 := n
-arm64 := y
-endif
+CFLAGS-$(CONFIG_ARM_64) += -mcpu=generic
+CFLAGS-$(CONFIG_ARM_64) += -mgeneral-regs-only # No fp registers etc
 
 ifneq ($(call cc-option,$(CC),-fvisibility=hidden,n),n)
 CFLAGS += -DGCC_HAS_VISIBILITY_ATTRIBUTE
diff --git a/xen/drivers/passthrough/Makefile b/xen/drivers/passthrough/Makefile
index ca84e36..6087333 100644
--- a/xen/drivers/passthrough/Makefile
+++ b/xen/drivers/passthrough/Makefile
@@ -1,7 +1,7 @@ 
 subdir-$(CONFIG_X86) += vtd
 subdir-$(CONFIG_X86) += amd
 subdir-$(CONFIG_X86) += x86
-subdir-$(arm) += arm
+subdir-$(CONFIG_ARM) += arm
 
 obj-y += iommu.o
 obj-$(CONFIG_X86) += io.o