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-rw-r--r--scripts/mod/Makefile32
1 files changed, 32 insertions, 0 deletions
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index ff954f8168c..c11212ff351 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -3,9 +3,41 @@ always := $(hostprogs-y) empty.o
modpost-objs := modpost.o file2alias.o sumversion.o
+devicetable-offsets-file := devicetable-offsets.h
+
+define sed-y
+ "/^->/{s:->#\(.*\):/* \1 */:; \
+ s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
+ s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+ s:->::; p;}"
+endef
+
+quiet_cmd_offsets = GEN $@
+define cmd_offsets
+ (set -e; \
+ echo "#ifndef __DEVICETABLE_OFFSETS_H__"; \
+ echo "#define __DEVICETABLE_OFFSETS_H__"; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was generated by Kbuild"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ sed -ne $(sed-y) $<; \
+ echo ""; \
+ echo "#endif" ) > $@
+endef
+
+$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s
+ $(call if_changed,offsets)
+
+targets += $(devicetable-offsets-file) devicetable-offsets.s
+
# dependencies on generated files need to be listed explicitly
$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
+$(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
quiet_cmd_elfconfig = MKELF $@
cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@