1 files changed, 63 insertions, 0 deletions
diff --git a/kern/init_i.h b/kern/init_i.h
new file mode 100644
index 00000000..be23073c
--- /dev/null
+++ b/kern/init_i.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2017 Richard Braun.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _KERN_INIT_I_H
+#define _KERN_INIT_I_H
+
+/*
+ * Alignment is important to make sure initialization operations are
+ * stored as a C array in the reserved init op section.
+ */
+#define INIT_OP_ALIGN 64
+
+#include <stdalign.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+#include <kern/list_types.h>
+#include <kern/macros.h>
+
+#define __initop __section(QUOTE(INIT_OPS_SECTION))
+
+#define INIT_OP_STATE_UNLINKED      0
+#define INIT_OP_STATE_PENDING       1
+#define INIT_OP_STATE_COMPLETE      2
+
+struct init_op {
+    alignas(INIT_OP_ALIGN) struct list list_node;
+    struct list stack_node;
+    const char *name;
+    init_op_fn_t fn;
+    struct init_op_dep *deps;
+    int error;
+    unsigned char state;
+    unsigned char nr_deps;
+    unsigned char nr_parents;
+};
+
+struct init_op_dep {
+    struct init_op *op;
+    bool required;
+};
+
+#define __INIT_OP_DEPS(fn)  fn ## _init_op_deps
+#define INIT_OP_DEPS(fn)    __INIT_OP_DEPS(fn)
+
+#define __INIT_OP(fn)       fn ## _init_op
+#define INIT_OP(fn)         __INIT_OP(fn)
+
+#endif /* _KERN_INIT_I_H */