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Makefile: Add initial kconfig support for each platform

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We extend the top-level makefile to allow kconfig based configuration
for each platform where each platform has it's own set of configs with
"defconfig" being the default config.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Tested-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Atish Patra <atishp@rivosinc.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2022-08-08 09:33:09 +05:30
committed by Anup Patel
parent 422f0e0486
commit 662e631cce
18 changed files with 127 additions and 12 deletions
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72
Makefile
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@@ -52,6 +52,9 @@ ifdef PLATFORM_DIR
else
platform_parent_dir=$(src_dir)/platform
endif
ifndef PLATFORM_DEFCONFIG
PLATFORM_DEFCONFIG=defconfig
endif
# Check if verbosity is ON for build process
CMD_PREFIX_DEFAULT := @
@@ -70,6 +73,20 @@ export libsbi_dir=$(CURDIR)/lib/sbi
export libsbiutils_dir=$(CURDIR)/lib/utils
export firmware_dir=$(CURDIR)/firmware
# Setup variables for kconfig
ifdef PLATFORM
export PYTHONDONTWRITEBYTECODE=1
export KCONFIG_DIR=$(platform_build_dir)/kconfig
export KCONFIG_AUTOLIST=$(KCONFIG_DIR)/auto.list
export KCONFIG_AUTOHEADER=$(KCONFIG_DIR)/autoconf.h
export KCONFIG_AUTOCMD=$(KCONFIG_DIR)/auto.conf.cmd
export KCONFIG_CONFIG=$(KCONFIG_DIR)/.config
# Additional exports for include paths in Kconfig files
export OPENSBI_SRC_DIR=$(src_dir)
export OPENSBI_PLATFORM=$(PLATFORM)
export OPENSBI_PLATFORM_SRC_DIR=$(platform_src_dir)
endif
# Find library version
OPENSBI_VERSION_MAJOR=`grep "define OPENSBI_VERSION_MAJOR" $(include_dir)/sbi/sbi_version.h | sed 's/.*MAJOR.*\([0-9][0-9]*\)/\1/'`
OPENSBI_VERSION_MINOR=`grep "define OPENSBI_VERSION_MINOR" $(include_dir)/sbi/sbi_version.h | sed 's/.*MINOR.*\([0-9][0-9]*\)/\1/'`
@@ -183,8 +200,36 @@ libsbi-object-mks=$(shell if [ -d $(libsbi_dir) ]; then find $(libsbi_dir) -inam
libsbiutils-object-mks=$(shell if [ -d $(libsbiutils_dir) ]; then find $(libsbiutils_dir) -iname "objects.mk" | sort -r; fi)
firmware-object-mks=$(shell if [ -d $(firmware_dir) ]; then find $(firmware_dir) -iname "objects.mk" | sort -r; fi)
# Include platform specifig config.mk
# The "make all" rule should always be first rule
.PHONY: all
all:
# Include platform specific .config and config.mk
ifdef PLATFORM
.PHONY: menuconfig
menuconfig: $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
$(CMD_PREFIX)mkdir -p $(KCONFIG_DIR)
$(CMD_PREFIX)$(src_dir)/scripts/Kconfiglib/menuconfig.py $(src_dir)/Kconfig
$(CMD_PREFIX)$(src_dir)/scripts/Kconfiglib/genconfig.py --header-path $(KCONFIG_AUTOHEADER) --sync-deps $(KCONFIG_DIR) --file-list $(KCONFIG_AUTOLIST) $(src_dir)/Kconfig
.PHONY: savedefconfig
savedefconfig: $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
$(CMD_PREFIX)mkdir -p $(KCONFIG_DIR)
$(CMD_PREFIX)$(src_dir)/scripts/Kconfiglib/savedefconfig.py --kconfig $(src_dir)/Kconfig --out $(KCONFIG_DIR)/defconfig
$(KCONFIG_CONFIG): $(platform_src_dir)/configs/$(PLATFORM_DEFCONFIG) $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
$(CMD_PREFIX)mkdir -p $(KCONFIG_DIR)
$(CMD_PREFIX)$(src_dir)/scripts/Kconfiglib/defconfig.py --kconfig $(src_dir)/Kconfig $(platform_src_dir)/configs/$(PLATFORM_DEFCONFIG)
$(CMD_PREFIX)$(src_dir)/scripts/Kconfiglib/genconfig.py --header-path $(KCONFIG_AUTOHEADER) --sync-deps $(KCONFIG_DIR) --file-list $(KCONFIG_AUTOLIST) $(src_dir)/Kconfig
$(KCONFIG_AUTOCMD): $(KCONFIG_CONFIG)
$(CMD_PREFIX)mkdir -p $(KCONFIG_DIR)
$(CMD_PREFIX)echo -n "$(KCONFIG_CONFIG): " > $(KCONFIG_AUTOCMD)
$(CMD_PREFIX)cat $(KCONFIG_AUTOLIST) | tr '\n' ' ' >> $(KCONFIG_AUTOCMD)
include $(KCONFIG_CONFIG)
include $(KCONFIG_AUTOCMD)
include $(platform_src_dir)/config.mk
endif
@@ -280,6 +325,9 @@ ifeq ($(BUILD_INFO),y)
GENFLAGS += -DOPENSBI_BUILD_TIME_STAMP="\"$(OPENSBI_BUILD_TIME_STAMP)\""
GENFLAGS += -DOPENSBI_BUILD_COMPILER_VERSION="\"$(OPENSBI_BUILD_COMPILER_VERSION)\""
endif
ifdef PLATFORM
GENFLAGS += -include $(KCONFIG_AUTOHEADER)
endif
GENFLAGS += $(libsbiutils-genflags-y)
GENFLAGS += $(platform-genflags-y)
GENFLAGS += $(firmware-genflags-y)
@@ -419,7 +467,7 @@ targets-y += $(platform_build_dir)/lib/libplatsbi.a
endif
targets-y += $(firmware-bins-path-y)
# Default rule "make" should always be first rule
# The default "make all" rule
.PHONY: all
all: $(targets-y)
@@ -435,7 +483,7 @@ $(build_dir)/lib/libsbiutils.a: $(libsbi-objs-path-y) $(libsbiutils-objs-path-y)
$(platform_build_dir)/lib/libplatsbi.a: $(libsbi-objs-path-y) $(libsbiutils-objs-path-y) $(platform-objs-path-y)
$(call compile_ar,$@,$^)
$(build_dir)/%.dep: $(src_dir)/%.c
$(build_dir)/%.dep: $(src_dir)/%.c $(KCONFIG_CONFIG)
$(call compile_cc_dep,$@,$<)
$(build_dir)/%.o: $(src_dir)/%.c
@@ -449,14 +497,14 @@ $(build_dir)/lib/sbi/sbi_init.o: $(libsbi_dir)/sbi_init.c FORCE
$(call compile_cc,$@,$<)
endif
$(build_dir)/%.dep: $(src_dir)/%.S
$(build_dir)/%.dep: $(src_dir)/%.S $(KCONFIG_CONFIG)
$(call compile_as_dep,$@,$<)
$(build_dir)/%.o: $(src_dir)/%.S
$(call compile_as,$@,$<)
$(build_dir)/%.dep: $(src_dir)/%.carray
$(call compile_gen_dep,$@,.c,$<)
$(build_dir)/%.dep: $(src_dir)/%.carray $(KCONFIG_CONFIG)
$(call compile_gen_dep,$@,.c,$< $(KCONFIG_CONFIG))
$(call compile_gen_dep,$@,.o,$(@:.dep=.c))
$(build_dir)/%.c: $(src_dir)/%.carray
@@ -471,10 +519,10 @@ $(platform_build_dir)/%.elf: $(platform_build_dir)/%.o $(platform_build_dir)/%.e
$(platform_build_dir)/%.ld: $(src_dir)/%.ldS
$(call compile_cpp,$@,$<)
$(platform_build_dir)/%.dep: $(platform_src_dir)/%.c
$(platform_build_dir)/%.dep: $(platform_src_dir)/%.c $(KCONFIG_CONFIG)
$(call compile_cc_dep,$@,$<)
$(platform_build_dir)/%.o: $(platform_src_dir)/%.c
$(platform_build_dir)/%.o: $(platform_src_dir)/%.c $(KCONFIG_CONFIG)
$(call compile_cc,$@,$<)
$(platform_build_dir)/%.dep: $(platform_src_dir)/%.S
@@ -483,8 +531,8 @@ $(platform_build_dir)/%.dep: $(platform_src_dir)/%.S
$(platform_build_dir)/%.o: $(platform_src_dir)/%.S
$(call compile_as,$@,$<)
$(platform_build_dir)/%.dep: $(platform_src_dir)/%.dts
$(call compile_gen_dep,$@,.dtb,$<)
$(platform_build_dir)/%.dep: $(platform_src_dir)/%.dts $(KCONFIG_CONFIG)
$(call compile_gen_dep,$@,.dtb,$< $(KCONFIG_CONFIG))
$(call compile_gen_dep,$@,.c,$(@:.dep=.dtb))
$(call compile_gen_dep,$@,.o,$(@:.dep=.c))
@@ -494,13 +542,13 @@ $(platform_build_dir)/%.c: $(platform_build_dir)/%.dtb
$(platform_build_dir)/%.dtb: $(platform_src_dir)/%.dts
$(call compile_dts,$@,$<)
$(platform_build_dir)/%.dep: $(src_dir)/%.c
$(platform_build_dir)/%.dep: $(src_dir)/%.c $(KCONFIG_CONFIG)
$(call compile_cc_dep,$@,$<)
$(platform_build_dir)/%.o: $(src_dir)/%.c
$(call compile_cc,$@,$<)
$(platform_build_dir)/%.dep: $(src_dir)/%.S
$(platform_build_dir)/%.dep: $(src_dir)/%.S $(KCONFIG_CONFIG)
$(call compile_as_dep,$@,$<)
$(platform_build_dir)/%.o: $(src_dir)/%.S