]> git.sur5r.net Git - u-boot/blob - scripts/Makefile.autoconf
bfin: make env offset sector aligned for bct-brettl2 and ibf-dsp561 boards
[u-boot] / scripts / Makefile.autoconf
1 # This helper makefile is used for creating
2 #  - symbolic links (arch/$ARCH/include/asm/arch
3 #  - include/autoconf.mk, {spl,tpl}/include/autoconf.mk
4 #  - include/config.h
5 #
6 # When our migration to Kconfig is done
7 # (= When we move all CONFIGs from header files to Kconfig)
8 # this makefile can be deleted.
9
10 # obj is "include" or "spl/include" or "tpl/include"
11 # for non-SPL, SPL, TPL, respectively
12 include $(obj)/config/auto.conf
13
14 include scripts/Kbuild.include
15
16 # Need to define CC and CPP again here in case the top Makefile did not
17 # include config.mk.  Some architectures expect CROSS_COMPILE to be defined
18 # in arch/$(ARCH)/config.mk
19 CC              = $(CROSS_COMPILE)gcc
20 CPP             = $(CC) -E
21
22 include config.mk
23
24 UBOOTINCLUDE    := \
25                 -I$(obj) \
26                 -Iinclude \
27                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
28                 -I$(srctree)/arch/$(ARCH)/include \
29                 -include $(srctree)/include/linux/kconfig.h
30
31 c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) \
32                                         $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
33
34 quiet_cmd_autoconf_dep = GEN     $@
35       cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M -MP $(c_flags) \
36         -MQ include/config/auto.conf $(srctree)/include/common.h > $@ || {      \
37                 rm $@; false;                                                   \
38         }
39 include/autoconf.mk.dep: FORCE
40         $(call cmd,autoconf_dep)
41
42 # We are migrating from board headers to Kconfig little by little.
43 # In the interim, we use both of
44 #  - include/config/auto.conf (generated by Kconfig)
45 #  - include/autoconf.mk      (used in the U-Boot conventional configuration)
46 # The following rule creates autoconf.mk
47 # include/config/auto.conf is grepped in order to avoid duplication of the
48 # same CONFIG macros
49 quiet_cmd_autoconf = GEN     $@
50       cmd_autoconf = \
51         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && {  \
52                 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp |               \
53                 while read line; do                                                     \
54                         if ! grep -q "$${line%=*}=" $(obj)/config/auto.conf; then       \
55                                 echo "$$line";                                          \
56                         fi                                                              \
57                 done > $@;                                                              \
58                 rm $@.tmp;                                                              \
59         } || {                                                                          \
60                 rm $@.tmp; false;                                                       \
61         }
62
63 $(obj)/autoconf.mk: FORCE
64         $(call cmd,autoconf)
65
66 include/autoconf.mk include/autoconf.mk.dep: include/config.h
67
68 # include/config.h
69 # Prior to Kconfig, it was generated by mkconfig. Now it is created here.
70 define filechk_config_h
71         (echo "/* Automatically generated - do not edit */";            \
72         for i in $$(echo $(CONFIG_SYS_EXTRA_OPTIONS) | sed 's/,/ /g'); do \
73                 echo \#define CONFIG_$$i                                \
74                 | sed '/=/ {s/=/        /;q; } ; { s/$$/        1/; }'; \
75         done;                                                           \
76         echo \#define CONFIG_BOARDDIR board/$(if $(VENDOR),$(VENDOR)/)$(BOARD);\
77         echo \#include \<config_defaults.h\>;                           \
78         echo \#include \<configs/$(CONFIG_SYS_CONFIG_NAME).h\>;         \
79         echo \#include \<asm/config.h\>;                                \
80         echo \#include \<config_fallbacks.h\>;                          \
81         echo \#include \<config_uncmd_spl.h\>; )
82 endef
83
84 include/config.h: scripts/Makefile.autoconf create_symlink FORCE
85         $(call filechk,config_h)
86
87 # symbolic links
88 PHONY += create_symlink
89 create_symlink:
90 ifneq ($(KBUILD_SRC),)
91         $(Q)mkdir -p include/asm
92         $(Q)ln -fsn $(KBUILD_SRC)/arch/$(ARCH)/include/asm/arch-$(if $(SOC),$(SOC),$(CPU)) \
93                 include/asm/arch
94 else
95         $(Q)ln -fsn arch-$(if $(SOC),$(SOC),$(CPU)) \
96                 arch/$(ARCH)/include/asm/arch
97 endif
98
99 PHONY += FORCE
100 FORCE:
101
102 .PHONY: $(PHONY)