lib: add oid registry utility
Imported from linux kernel v5.3:
build_OID_registry without changes
oid_registry.h without changes
oid_registry.c with changes marked as __UBOOT__
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
diff --git a/lib/Makefile b/lib/Makefile
index f69c013..d5bf195 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -120,4 +120,20 @@
obj-y += date.o
+#
+# Build a fast OID lookup registry from include/linux/oid_registry.h
+#
+obj-$(CONFIG_OID_REGISTRY) += oid_registry.o
+
+$(obj)/oid_registry.o: $(obj)/oid_registry_data.c
+
+$(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \
+ $(srctree)/scripts/build_OID_registry
+ $(call cmd,build_OID_registry)
+
+quiet_cmd_build_OID_registry = GEN $@
+ cmd_build_OID_registry = perl $(srctree)/scripts/build_OID_registry $< $@
+
+clean-files += oid_registry_data.c
+
subdir-ccflags-$(CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED) += -O2