From f84c55f194df088c291fc4359ccec1305be456ce Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sat, 17 Jul 2021 19:03:45 +0200
Subject: basic boot module support

This loads a file from the boot disk into memory. Currently it just gets
printed, but it's going to become a real executable soon.
---
 src/kernel/main.c |  4 +++-
 src/kernel/main.h | 10 +++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'src/kernel')

diff --git a/src/kernel/main.c b/src/kernel/main.c
index d2d7dda..d2f2e7f 100644
--- a/src/kernel/main.c
+++ b/src/kernel/main.c
@@ -1,11 +1,13 @@
 #include <arch/generic.h>
+#include <kernel/main.h>
 #include <kernel/mem.h>
 #include <kernel/panic.h>
 #include <kernel/proc.h>
 
 void r3_test();
 
-void kmain() {
+void kmain(struct kmain_info info) {
+	log_write(info.init.at, info.init.size);
 	log_const("mem...");
 	mem_init();
 
diff --git a/src/kernel/main.h b/src/kernel/main.h
index 6f27386..f7f5f04 100644
--- a/src/kernel/main.h
+++ b/src/kernel/main.h
@@ -1,3 +1,11 @@
 #pragma once
+#include <stddef.h>
 
-void kmain();
+struct kmain_info {
+	struct {
+		void *at;    // page aligned
+		size_t size;
+	} init; // a boot module loaded by GRUB, containing the initrd driver
+};
+
+void kmain(struct kmain_info);
-- 
cgit v1.2.3