summaryrefslogtreecommitdiff
path: root/scripts/Makefile.autoconf
blob: 0bfc1b2a6292582adc815d17f84e428e81fd4929 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
# SPDX-License-Identifier: GPL-2.0
# This helper makefile is used for creating
#  - symbolic links (arch/$ARCH/include/asm/arch
#  - include/autoconf.mk, {spl,tpl}/include/autoconf.mk
#  - include/config.h
#
# When our migration to Kconfig is done
# (= When we move all CONFIGs from header files to Kconfig)
# this makefile can be deleted.

__all: include/autoconf.mk include/autoconf.mk.dep

ifeq ($(shell grep -q '^CONFIG_SPL=y' include/config/auto.conf 2>/dev/null && echo y),y)
__all: spl/include/autoconf.mk
endif

ifeq ($(shell grep -q '^CONFIG_TPL=y' include/config/auto.conf 2>/dev/null && echo y),y)
__all: tpl/include/autoconf.mk
endif

include include/config/auto.conf

include scripts/Kbuild.include

# Need to define CC and CPP again here in case the top Makefile did not
# include config.mk.  Some architectures expect CROSS_COMPILE to be defined
# in arch/$(ARCH)/config.mk
CC		= $(CROSS_COMPILE)gcc
CPP		= $(CC) -E

include config.mk

UBOOTINCLUDE    := \
		-Iinclude \
		$(if $(KBUILD_SRC), -I$(srctree)/include) \
		-I$(srctree)/arch/$(ARCH)/include \
		-include $(srctree)/include/linux/kconfig.h

c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) \
					$(UBOOTINCLUDE) $(NOSTDINC_FLAGS)

quiet_cmd_autoconf_dep = GEN     $@
      cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M -MP $(c_flags) \
	-MQ include/config/auto.conf $(srctree)/include/common.h > $@ || {	\
		rm $@; false;							\
	}
include/autoconf.mk.dep: include/config.h FORCE
	$(call cmd,autoconf_dep)

# We are migrating from board headers to Kconfig little by little.
# In the interim, we use both of
#  - include/config/auto.conf (generated by Kconfig)
#  - include/autoconf.mk      (used in the U-Boot conventional configuration)
# The following rule creates autoconf.mk
# include/config/auto.conf is grepped in order to avoid duplication of the
# same CONFIG macros
quiet_cmd_autoconf = GEN     $@
      cmd_autoconf = \
		sed -n -f $(srctree)/tools/scripts/define2mk.sed $< |			\
		while read line; do							\
			if [ -n "${KCONFIG_IGNORE_DUPLICATES}" ] ||			\
			   ! grep -q "$${line%=*}=" include/config/auto.conf; then	\
				echo "$$line";						\
			fi								\
		done > $@

quiet_cmd_u_boot_cfg = CFG     $@
      cmd_u_boot_cfg = \
	$(CPP) $(c_flags) $2 -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && { \
		grep 'define CONFIG_' $@.tmp > $@;			\
		rm $@.tmp;						\
	} || {								\
		rm $@.tmp; false;					\
	}

u-boot.cfg: include/config.h FORCE
	$(call cmd,u_boot_cfg)

spl/u-boot.cfg: include/config.h FORCE
	$(Q)mkdir -p $(dir $@)
	$(call cmd,u_boot_cfg,-DCONFIG_SPL_BUILD)

tpl/u-boot.cfg: include/config.h FORCE
	$(Q)mkdir -p $(dir $@)
	$(call cmd,u_boot_cfg,-DCONFIG_SPL_BUILD -DCONFIG_TPL_BUILD)

include/autoconf.mk: u-boot.cfg
	$(call cmd,autoconf)

spl/include/autoconf.mk: spl/u-boot.cfg
	$(Q)mkdir -p $(dir $@)
	$(call cmd,autoconf)

tpl/include/autoconf.mk: tpl/u-boot.cfg
	$(Q)mkdir -p $(dir $@)
	$(call cmd,autoconf)

# include/config.h
# Prior to Kconfig, it was generated by mkconfig. Now it is created here.
define filechk_config_h
	(echo "/* Automatically generated - do not edit */";		\
	for i in $$(echo $(CONFIG_SYS_EXTRA_OPTIONS) | sed 's/,/ /g'); do \
		echo \#define CONFIG_$$i				\
		| sed '/=/ {s/=/	/;q; } ; { s/$$/	1/; }'; \
	done;								\
	echo \#define CONFIG_BOARDDIR board/$(if $(VENDOR),$(VENDOR)/)$(BOARD);\
	echo \#include \<config_uncmd_spl.h\>;				\
	echo \#include \<configs/$(CONFIG_SYS_CONFIG_NAME).h\>;		\
	echo \#include \<asm/config.h\>;				\
	echo \#include \<linux/kconfig.h\>;				\
	echo \#include \<config_fallbacks.h\>;)
endef

include/config.h: scripts/Makefile.autoconf create_symlink FORCE
	$(call filechk,config_h)

# symbolic links
# If arch/$(ARCH)/mach-$(SOC)/include/mach exists,
# make a symbolic link to that directory.
# Otherwise, create a symbolic link to arch/$(ARCH)/include/asm/arch-$(SOC).
PHONY += create_symlink
create_symlink:
ifdef CONFIG_CREATE_ARCH_SYMLINK
ifneq ($(KBUILD_SRC),)
	$(Q)mkdir -p include/asm
	$(Q)if [ -d $(KBUILD_SRC)/arch/$(ARCH)/mach-$(SOC)/include/mach ]; then	\
		dest=arch/$(ARCH)/mach-$(SOC)/include/mach;			\
	else									\
		dest=arch/$(ARCH)/include/asm/arch-$(if $(SOC),$(SOC),$(CPU));	\
	fi;									\
	ln -fsn $(KBUILD_SRC)/$$dest include/asm/arch
else
	$(Q)if [ -d arch/$(ARCH)/mach-$(SOC)/include/mach ]; then	\
		dest=../../mach-$(SOC)/include/mach;			\
	else								\
		dest=arch-$(if $(SOC),$(SOC),$(CPU));			\
	fi;								\
	ln -fsn $$dest arch/$(ARCH)/include/asm/arch
endif
endif

PHONY += FORCE
FORCE:

.PHONY: $(PHONY)