Pass more -D options to BL*_CPPFLAGS instead of BL*_CFLAGS

Commit d5e97a1d ("Build: define IMAGE_AT_EL1 or IMAGE_AT_EL3
globally for C files") does not have commit 848a7e8c ("Build:
introduce per-BL CPPFLAGS and ASFLAGS") as an ancestor because
they were pulled almost at the same time.

This is a follow-up conversion to be consistent with commit
11a3c5ee

 ("plat: pass -D option to BL*_CPPFLAGS instead of
BL*_CFLAGS").

With this change, the command line option, IMAGE_AT_EL3, will be
passed to .S files as well.

I remove the definition in include/lib/cpus/aarch64/cpu_macros.S

Otherwise, the following error would happen.

  include/lib/cpus/aarch64/cpu_macros.S:29:0: error: "IMAGE_AT_EL3" redefined [-Werror]

Change-Id: I943c8f22356483c2ae3c57b515c69243a8fa6889
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Makefile

@@ -537,15 +537,15 @@ endif
 endif
 
 ifeq (${ARCH},aarch64)
-BL1_CFLAGS += -DIMAGE_AT_EL3
+BL1_CPPFLAGS += -DIMAGE_AT_EL3
 ifeq ($(BL2_AT_EL3),1)
-BL2_CFLAGS += -DIMAGE_AT_EL3
+BL2_CPPFLAGS += -DIMAGE_AT_EL3
 else
-BL2_CFLAGS += -DIMAGE_AT_EL1
+BL2_CPPFLAGS += -DIMAGE_AT_EL1
 endif
-BL2U_CFLAGS += -DIMAGE_AT_EL1
-BL31_CFLAGS += -DIMAGE_AT_EL3
-BL32_CFLAGS += -DIMAGE_AT_EL1
+BL2U_CPPFLAGS += -DIMAGE_AT_EL1
+BL31_CPPFLAGS += -DIMAGE_AT_EL3
+BL32_CPPFLAGS += -DIMAGE_AT_EL1
 endif
 
 # Include the CPU specific operations makefile, which provides default

include/lib/cpus/aarch64/cpu_macros.S

@@ -25,10 +25,6 @@
 /* Word size for 64-bit CPUs */
 #define CPU_WORD_SIZE			8
 
-#if defined(IMAGE_BL1) || defined(IMAGE_BL31) ||(defined(IMAGE_BL2) && BL2_AT_EL3)
-#define IMAGE_AT_EL3
-#endif
-
 /*
  * Whether errata status needs reporting. Errata status is printed in debug
  * builds for both BL1 and BL31 images.

plat/socionext/uniphier/platform.mk

@@ -17,8 +17,8 @@ override ENABLE_PIE			:= 1
 ALLOW_RO_XLAT_TABLES			:= 1
 
 ifeq ($(ALLOW_RO_XLAT_TABLES),1)
-BL31_CFLAGS += -DPLAT_RO_XLAT_TABLES=1
-BL32_CFLAGS += -DPLAT_RO_XLAT_TABLES=1
+BL31_CPPFLAGS += -DPLAT_RO_XLAT_TABLES=1
+BL32_CPPFLAGS += -DPLAT_RO_XLAT_TABLES=1
 endif
 
 # Cortex-A53 revision r0p4-51rel0