From 6b0f6ddfb72be6d04302e7ee15637dead0980bff Mon Sep 17 00:00:00 2001
From: Rick Rongen <rickrongen@outlook.com>
Date: Fri, 13 Aug 2021 21:07:40 +0200
Subject: [PATCH] feat added init function

---
 include/myke/util/init.h | 20 ++++++++++++++++++++
 kernel/kernel.c          |  4 ++++
 kernel/util/init.c       | 18 ++++++++++++++++++
 kernel/vfs/tmpfs.c       | 13 +++++++++++++
 linker.ld                |  4 ++++
 5 files changed, 59 insertions(+)
 create mode 100644 include/myke/util/init.h
 create mode 100644 kernel/util/init.c
 create mode 100644 kernel/vfs/tmpfs.c

diff --git a/include/myke/util/init.h b/include/myke/util/init.h
new file mode 100644
index 0000000..a6ebb64
--- /dev/null
+++ b/include/myke/util/init.h
@@ -0,0 +1,20 @@
+//
+// Created by rick on 13-08-21.
+//
+
+#ifndef NEW_KERNEL_INIT_H
+#define NEW_KERNEL_INIT_H
+
+#include <sys/types.h>
+#include <myke/driver.h>
+
+struct init {
+    const char *name;
+    void (*init)();
+};
+
+#define INIT_FUNCTION(order) GENERIC_DRIVER(init, order)
+
+void init_execute_all();
+
+#endif //NEW_KERNEL_INIT_H
diff --git a/kernel/kernel.c b/kernel/kernel.c
index c13acd8..3197cfe 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -19,6 +19,7 @@
 #include <myke/libk/libk.h>
 #include <myke/libk/syscall.h>
 #include <myke/mem/mem.h>
+#include <myke/util/init.h>
 #include <myke/tasks/task.h>
 
 const int version_major = 0,
@@ -78,6 +79,9 @@ void att_noreturn att_used kmain(multiboot_info_t *multiboot_info, uint32_t mb_n
 
     printf("Booted successfully v%d.%d.%d\n", version_major, version_minor, version_patch);
 
+    // initializing modules
+    init_execute_all();
+
     // initialize tasking
     task_init();
     kprint_start_task();
diff --git a/kernel/util/init.c b/kernel/util/init.c
new file mode 100644
index 0000000..a779088
--- /dev/null
+++ b/kernel/util/init.c
@@ -0,0 +1,18 @@
+//
+// Created by rick on 13-08-21.
+//
+
+#include <myke/util/init.h>
+#include <stdio.h>
+
+extern struct init __start_init[];
+extern struct init __stop_init[];
+#define NUM_DRIVERS ((size_t)(__stop_init - __start_init))
+#define DRIVER(i) ((__start_init) + (i))
+
+void init_execute_all() {
+    for (size_t i = 0; i < NUM_DRIVERS; ++i) {
+        printf("init %s\n", DRIVER(i)->name);
+        DRIVER(i)->init();
+    }
+}
\ No newline at end of file
diff --git a/kernel/vfs/tmpfs.c b/kernel/vfs/tmpfs.c
new file mode 100644
index 0000000..e46746f
--- /dev/null
+++ b/kernel/vfs/tmpfs.c
@@ -0,0 +1,13 @@
+//
+// Created by rick on 13-08-21.
+//
+
+#include <myke/util/init.h>
+
+void tmpfs_init() {
+}
+
+INIT_FUNCTION(100) = {
+        .name = "tmpfs",
+        .init = tmpfs_init,
+};
diff --git a/linker.ld b/linker.ld
index c8a9eca..386ea79 100644
--- a/linker.ld
+++ b/linker.ld
@@ -31,6 +31,10 @@ SECTIONS
 	{
 		*(.data)
 	    . = ALIGN(16);
+	    __start_init = .;
+	    *(SORT(.init.*))
+	    __stop_init = .;
+	    . = ALIGN(16);
 	    __start_pci_driver = .;
 		*(SORT(.pci_driver.*))
 	    __stop_pci_driver = .;