Makefile: descend into subdirectories only when CONFIG_API is defined
All objects under api/ and examples/api/ directories are selected
by CONFIG_API.
So we can move CONFIG_API switch to the top Makefile.
In order to use CONFIG_API, the definition of SUBDIR_EXAMPLES-y
must be moved after "sinlude $(obj)include/autoconf.mk".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/Makefile b/Makefile
index 2f456e0..ed2864c 100644
--- a/Makefile
+++ b/Makefile
@@ -136,7 +136,6 @@
# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
# is "yes"), so compile examples after U-Boot is compiled.
SUBDIR_TOOLS = tools
-SUBDIR_EXAMPLES = examples/standalone examples/api
SUBDIRS = $(SUBDIR_TOOLS)
.PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
@@ -150,8 +149,10 @@
sinclude $(obj)include/autoconf.mk.dep
sinclude $(obj)include/autoconf.mk
+SUBDIR_EXAMPLES-y := examples/standalone
+SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
ifndef CONFIG_SANDBOX
-SUBDIRS += $(SUBDIR_EXAMPLES)
+SUBDIRS += $(SUBDIR_EXAMPLES-y)
endif
# load ARCH, BOARD, and CPU configuration
@@ -277,7 +278,7 @@
LIBS-y += drivers/usb/ulpi/
LIBS-y += common/
LIBS-y += lib/libfdt/
-LIBS-y += api/
+LIBS-$(CONFIG_API) += api/
LIBS-y += post/
LIBS-y += test/
@@ -362,7 +363,7 @@
build := -f $(TOPDIR)/scripts/Makefile.build -C
-all: $(ALL-y) $(SUBDIR_EXAMPLES)
+all: $(ALL-y) $(SUBDIR_EXAMPLES-y)
$(obj)u-boot.dtb: checkdtc $(obj)u-boot
$(MAKE) $(build) dts binary
@@ -550,7 +551,7 @@
$(SUBDIRS): depend
$(MAKE) -C $@ all
-$(SUBDIR_EXAMPLES): $(obj)u-boot
+$(SUBDIR_EXAMPLES-y): $(obj)u-boot
$(LDSCRIPT): depend
$(MAKE) -C $(dir $@) $(notdir $@)
diff --git a/api/Makefile b/api/Makefile
index fb130ff..0f85a0b 100644
--- a/api/Makefile
+++ b/api/Makefile
@@ -4,5 +4,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-$(CONFIG_API) += api.o api_display.o api_net.o api_storage.o \
- api_platform-$(ARCH).o
+obj-y += api.o api_display.o api_net.o api_storage.o
+obj-$(CONFIG_ARM) += api_platform-arm.o
+obj-$(CONFIG_PPC) += api_platform-powerpc.c
diff --git a/examples/api/Makefile b/examples/api/Makefile
index 1cefbe7..cad10a3 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -14,25 +14,22 @@
include $(TOPDIR)/config.mk
# Resulting ELF and binary exectuables will be named demo and demo.bin
-OUTPUT-$(CONFIG_API) = $(obj)demo
-OUTPUT = $(OUTPUT-y)
+OUTPUT = $(obj)demo
# Source files located in the examples/api directory
-SOBJ_FILES-$(CONFIG_API) += crt0.o
-COBJ_FILES-$(CONFIG_API) += demo.o
-COBJ_FILES-$(CONFIG_API) += glue.o
-COBJ_FILES-$(CONFIG_API) += libgenwrap.o
+SOBJ_FILES-y += crt0.o
+COBJ_FILES-y += demo.o
+COBJ_FILES-y += glue.o
+COBJ_FILES-y += libgenwrap.o
# Source files which exist outside the examples/api directory
-EXT_COBJ_FILES-$(CONFIG_API) += lib/crc32.o
-EXT_COBJ_FILES-$(CONFIG_API) += lib/ctype.o
-EXT_COBJ_FILES-$(CONFIG_API) += lib/div64.o
-EXT_COBJ_FILES-$(CONFIG_API) += lib/string.o
-EXT_COBJ_FILES-$(CONFIG_API) += lib/time.o
-EXT_COBJ_FILES-$(CONFIG_API) += lib/vsprintf.o
-ifeq ($(ARCH),powerpc)
-EXT_SOBJ_FILES-$(CONFIG_API) += arch/powerpc/lib/ppcstring.o
-endif
+EXT_COBJ_FILES-y += lib/crc32.o
+EXT_COBJ_FILES-y += lib/ctype.o
+EXT_COBJ_FILES-y += lib/div64.o
+EXT_COBJ_FILES-y += lib/string.o
+EXT_COBJ_FILES-y += lib/time.o
+EXT_COBJ_FILES-y += lib/vsprintf.o
+EXT_SOBJ_FILES-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
# Create a list of source files so their dependencies can be auto-generated
SRCS += $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c))