Pass multiboot info to main function

3 files changed, 11 insertions, 3 deletions

diff --git a/arch/x86_64/include/arch/kernel/main.hpp b/arch/x86_64/include/arch/kernel/main.hpp
index 6961594..57b9b58 100644
--- a/arch/x86_64/include/arch/kernel/main.hpp
+++ b/arch/x86_64/include/arch/kernel/main.hpp
@@ -5,7 +5,7 @@
 
 namespace teachos::arch::kernel
 {
-  auto main() -> void;
+  auto main(size_t multiboot_information_address) -> void;
 }
 
 #endif
\ No newline at end of file
diff --git a/arch/x86_64/src/kernel/main.cpp b/arch/x86_64/src/kernel/main.cpp
index 0e90264..01c14a5 100644
--- a/arch/x86_64/src/kernel/main.cpp
+++ b/arch/x86_64/src/kernel/main.cpp
@@ -2,14 +2,19 @@
 
 #include "arch/video/vga/text.hpp"
 
+#include "stdio.h"
+
 namespace teachos::arch::kernel
 {
-  auto main() -> void
+  auto main(size_t multiboot_information_address) -> void
   {
     using namespace video::vga;
 
     text::clear();
     text::cursor(false);
     text::write("TeachOS is starting up...", text::common_attributes::green_on_black);
+    char address[32U] = {};
+    snprintf(address, sizeof(address), "Multiboot address: (%lu)", multiboot_information_address);
+    text::write(address, text::common_attributes::green_on_black);
   }
 }  // namespace teachos::arch::kernel
diff --git a/src/kernel/main.cpp b/src/kernel/main.cpp
index 07a9955..a1ef159 100644
--- a/src/kernel/main.cpp
+++ b/src/kernel/main.cpp
@@ -1,3 +1,6 @@
 #include "arch/kernel/main.hpp"
 
-extern "C" auto kernel_main() -> void { teachos::arch::kernel::main(); }
\ No newline at end of file
+extern "C" auto kernel_main(size_t multiboot_information_address) -> void
+{
+  teachos::arch::kernel::main(multiboot_information_address);
+}