blob: ef97787bf45945ee22803325a641d13b9c4468d9
| 1 | # |
| 2 | # Kbuild for top-level directory of U-Boot |
| 3 | # This file takes care of the following: |
| 4 | # 1) Generate generic-asm-offsets.h |
| 5 | # 2) Generate asm-offsets.h |
| 6 | |
| 7 | ##### |
| 8 | # 1) Generate generic-asm-offsets.h |
| 9 | |
| 10 | generic-offsets-file := include/generated/generic-asm-offsets.h |
| 11 | |
| 12 | always := $(generic-offsets-file) |
| 13 | targets := $(generic-offsets-file) lib/asm-offsets.s |
| 14 | |
| 15 | quiet_cmd_generic-offsets = GEN $@ |
| 16 | define cmd_generic-offsets |
| 17 | (set -e; \ |
| 18 | echo "#ifndef __GENERIC_ASM_OFFSETS_H__"; \ |
| 19 | echo "#define __GENERIC_ASM_OFFSETS_H__"; \ |
| 20 | echo "/*"; \ |
| 21 | echo " * DO NOT MODIFY."; \ |
| 22 | echo " *"; \ |
| 23 | echo " * This file was generated by Kbuild"; \ |
| 24 | echo " *"; \ |
| 25 | echo " */"; \ |
| 26 | echo ""; \ |
| 27 | sed -ne $(sed-y) $<; \ |
| 28 | echo ""; \ |
| 29 | echo "#endif" ) > $@ |
| 30 | endef |
| 31 | |
| 32 | # We use internal kbuild rules to avoid the "is up to date" message from make |
| 33 | lib/asm-offsets.s: lib/asm-offsets.c FORCE |
| 34 | $(Q)mkdir -p $(dir $@) |
| 35 | $(call if_changed_dep,cc_s_c) |
| 36 | |
| 37 | $(obj)/$(generic-offsets-file): lib/asm-offsets.s Kbuild |
| 38 | $(Q)mkdir -p $(dir $@) |
| 39 | $(call cmd,generic-offsets) |
| 40 | |
| 41 | ##### |
| 42 | # 2) Generate asm-offsets.h |
| 43 | # |
| 44 | |
| 45 | ifneq ($(wildcard $(srctree)/arch/$(ARCH)/lib/asm-offsets.c),) |
| 46 | offsets-file := include/generated/asm-offsets.h |
| 47 | endif |
| 48 | |
| 49 | always += $(offsets-file) |
| 50 | targets += $(offsets-file) |
| 51 | targets += arch/$(ARCH)/lib/asm-offsets.s |
| 52 | |
| 53 | |
| 54 | # Default sed regexp - multiline due to syntax constraints |
| 55 | define sed-y |
| 56 | "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \ |
| 57 | /^->/{s:->#\(.*\):/* \1 */:; \ |
| 58 | s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
| 59 | s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
| 60 | s:->::; p;}" |
| 61 | endef |
| 62 | |
| 63 | CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY |
| 64 | |
| 65 | quiet_cmd_offsets = GEN $@ |
| 66 | define cmd_offsets |
| 67 | (set -e; \ |
| 68 | echo "#ifndef __ASM_OFFSETS_H__"; \ |
| 69 | echo "#define __ASM_OFFSETS_H__"; \ |
| 70 | echo "/*"; \ |
| 71 | echo " * DO NOT MODIFY."; \ |
| 72 | echo " *"; \ |
| 73 | echo " * This file was generated by Kbuild"; \ |
| 74 | echo " *"; \ |
| 75 | echo " */"; \ |
| 76 | echo ""; \ |
| 77 | sed -ne $(sed-y) $<; \ |
| 78 | echo ""; \ |
| 79 | echo "#endif" ) > $@ |
| 80 | endef |
| 81 | |
| 82 | # We use internal kbuild rules to avoid the "is up to date" message from make |
| 83 | arch/$(ARCH)/lib/asm-offsets.s: arch/$(ARCH)/lib/asm-offsets.c FORCE |
| 84 | $(Q)mkdir -p $(dir $@) |
| 85 | $(call if_changed_dep,cc_s_c) |
| 86 | |
| 87 | $(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s Kbuild |
| 88 | $(call cmd,offsets) |
| 89 |