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-rw-r--r--include/dbs/init.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/dbs/init.h b/include/dbs/init.h
new file mode 100644
index 0000000..79e60f1
--- /dev/null
+++ b/include/dbs/init.h
@@ -0,0 +1,23 @@
+#ifndef __INIT_H
+#define __INIT_H
+
+typedef void (*initcall_t)(void);
+typedef initcall_t initcall_entry_t;
+
+#define __define_initcall(fn, id) \
+ static initcall_t __initcall_##fn##id \
+ __attribute__((used)) \
+ __attribute__((section(".initcall" #id ".init"))) = fn
+
+#define l1_initcall(fn) __define_initcall(fn, 1)
+#define l2_initcall(fn) __define_initcall(fn, 2)
+#define l3_initcall(fn) __define_initcall(fn, 3)
+#define l4_initcall(fn) __define_initcall(fn, 4)
+#define l5_initcall(fn) __define_initcall(fn, 5)
+
+static inline initcall_t initcall_from_entry(initcall_entry_t *entry)
+{
+ return *entry;
+}
+
+#endif