kbuild: consolidate PLATFORM_LIBS

We had switched to Kbuild so now we can specify
PLATFORM_LIBS/PLATFORM_LIBGCC with relative path.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

Makefile

@@ -653,7 +653,7 @@ u-boot-main := $(libs-y)
 # Add GCC lib
 ifdef USE_PRIVATE_LIBGCC
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
+PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 else
 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 endif

arch/arm/config.mk

@@ -67,13 +67,8 @@ ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
 # times. Also, the prefix needs to be different based on whether
 # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry
 # before adding the correct one.
-ifdef CONFIG_SPL_BUILD
-PLATFORM_LIBS := $(SPLTREE)/arch/arm/lib/eabi_compat.o \
-	$(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-else
-PLATFORM_LIBS := $(OBJTREE)/arch/arm/lib/eabi_compat.o \
-	$(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-endif
+PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \
+	$(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
 endif
 
 # needed for relocation

spl/Makefile

@@ -133,7 +133,7 @@ libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
 
 # Add GCC lib
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/lib.a
+PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 endif