From 80aca5ee8a3c9c9a4c10bbb11140c0b11a345184 Mon Sep 17 00:00:00 2001
From: d0p1 <contact@d0p1.eu>
Date: Mon, 8 Jul 2024 19:20:24 +0200
Subject: [PATCH] chore: kernel module ?

---
 kernel/pic.inc          | 10 ++++++++++
 kernel/sys/coff.inc     | 10 ++++++++++
 modules/Makefile        |  2 +-
 modules/dummy/dummy.asm | 19 +++++++++++++++++++
 modules/module.inc      | 25 +++++++++++++++++++++++++
 5 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 kernel/pic.inc
 create mode 100644 kernel/sys/coff.inc
 create mode 100644 modules/module.inc

diff --git a/kernel/pic.inc b/kernel/pic.inc
new file mode 100644
index 0000000..231041d
--- /dev/null
+++ b/kernel/pic.inc
@@ -0,0 +1,10 @@
+PIC1_COMMAND = 0x20
+PIC1_DATA    = 0x21
+PIC2_COMMAND = 0xA0
+PIC2_DATA    = 0xA1
+
+PIC_EOI = 0x20
+
+pic_init:
+	ret
+
diff --git a/kernel/sys/coff.inc b/kernel/sys/coff.inc
new file mode 100644
index 0000000..d9988ec
--- /dev/null
+++ b/kernel/sys/coff.inc
@@ -0,0 +1,10 @@
+struc COFFFileHdr {
+	.f_magic  dw ?
+	.f_nscns  dw ?
+	.f_timdat dd ?
+	.f_symptr dd ?
+	.f_nsyms  dd ?
+	.f_opthdr dw ?
+	.f_flags  dw ?
+}
+
diff --git a/modules/Makefile b/modules/Makefile
index ad53768..0399a2f 100644
--- a/modules/Makefile
+++ b/modules/Makefile
@@ -4,7 +4,7 @@ SUBDIRS = dummy
 
 .PHONY: $(SUBDIRS)
 $(SUBDIRS):
-	@echo "📁 boot/$@"
+	@echo "📁 modules/$@"
 	@DESTDIR=$(DESTDIR) $(MAKE) -C $@ $(MAKECMDGOALS)
 
 .PHONY: $(TOPGOALS)
diff --git a/modules/dummy/dummy.asm b/modules/dummy/dummy.asm
index 56b2dfb..a7063ee 100644
--- a/modules/dummy/dummy.asm
+++ b/modules/dummy/dummy.asm
@@ -1,2 +1,21 @@
 	format COFF
+	use32
 
+	include '../module.inc'
+
+	section '.text' code
+
+	public module_init
+module_init:
+	ret
+
+	public module_exit
+module_exit:
+	ret
+
+MODULE_INFO_BEGIN
+
+MODULE_AUTHOR "d0p1"
+MODULE_DESCRIPTION "Dummy module"
+MODULE_LICENSE "BSD-3-Clause"
+MODULE_VERSION "1.0"
diff --git a/modules/module.inc b/modules/module.inc
new file mode 100644
index 0000000..e434f2b
--- /dev/null
+++ b/modules/module.inc
@@ -0,0 +1,25 @@
+macro MODULE_INFO_BEGIN { 
+	section '.modinfo' data
+}
+
+macro MODULE_INFO tag,value {
+	public module_#tag
+module_#tag db `value#, 0
+
+}
+
+macro MODULE_AUTHOR value {
+	MODULE_INFO author, value
+}
+
+macro MODULE_VERSION value {
+	MODULE_INFO version, value
+}
+
+macro MODULE_LICENSE value {
+	MODULE_INFO license, value
+}
+
+macro MODULE_DESCRIPTION value {
+	MODULE_INFO description, value
+}