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51148790 MY |
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)/)$(BOARD);\ | |
51148790 MY |
77 | echo \#include \<config_defaults.h\>; \ |
78 | echo \#include \<configs/$(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 | |
ffe29ebc MY |
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 | |
51148790 | 97 | endif |
51148790 MY |
98 | |
99 | PHONY += FORCE | |
100 | FORCE: | |
101 | ||
102 | .PHONY: $(PHONY) |