From 48814535b21093cd859ddceb57e6ed1adc54196e Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Sat, 18 Dec 2021 04:05:01 +0500
Subject: [PATCH] Print kernel info

---
 kernel/info.c | 23 +++++++++++++++++++++++
 kernel/info.h |  1 +
 kernel/main.c |  2 ++
 3 files changed, 26 insertions(+)

diff --git a/kernel/info.c b/kernel/info.c
index 2920df9..b0f7fe6 100644
--- a/kernel/info.c
+++ b/kernel/info.c
@@ -1,5 +1,6 @@
 #include "info.h"
 
+#include <kernaux/console.h>
 #include <kernaux/libc.h>
 
 static bool cmdline_terminated(const char *s);
@@ -26,6 +27,28 @@ void kernel_info_initialize(
     kinfo->kernel_stack_top = stack_top;
 }
 
+void kernel_info_print(const struct Kernel_Info *const kinfo)
+{
+    kernaux_console_printf("Kernel info\n");
+    kernaux_console_printf("  cmdline: %s\n", kinfo->cmdline);
+    kernaux_console_printf("  modules: %lu\n", kinfo->modules_count);
+    kernaux_console_printf("  areas: %lu\n", kinfo->areas_count);
+    kernaux_console_printf("\n");
+    kernaux_console_printf("  offset: %lu\n", kinfo->kernel_offset);
+    kernaux_console_printf("  size: %lu\n", kinfo->kernel_size);
+    kernaux_console_printf("\n");
+    kernaux_console_printf("  phys base: %lu\n", kinfo->kernel_phys_base);
+    kernaux_console_printf("  phys limit: %lu\n", kinfo->kernel_phys_limit);
+    kernaux_console_printf("\n");
+    kernaux_console_printf("  virt base: %lu\n", kinfo->kernel_virt_base);
+    kernaux_console_printf("  virt limit: %lu\n", kinfo->kernel_virt_limit);
+    kernaux_console_printf("\n");
+    kernaux_console_printf("  modules size: %lu\n", kinfo->modules_total_size);
+    kernaux_console_printf("  kernel & modules sizet: %lu\n", kinfo->kernel_and_modules_total_size);
+    kernaux_console_printf("\n");
+    kernaux_console_printf("  stack top: %lu\n", kinfo->kernel_stack_top);
+}
+
 bool kernel_info_validate(const struct Kernel_Info *const kinfo)
 {
     if (!kinfo) return false;
diff --git a/kernel/info.h b/kernel/info.h
index 9630d3f..ec971a9 100644
--- a/kernel/info.h
+++ b/kernel/info.h
@@ -67,6 +67,7 @@ void kernel_info_initialize(
 );
 
 bool kernel_info_validate(const struct Kernel_Info *kinfo);
+void kernel_info_print(const struct Kernel_Info *kinfo);
 
 #ifdef __cplusplus
 }
diff --git a/kernel/main.c b/kernel/main.c
index 7511239..20d275d 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -153,6 +153,8 @@ void main(
 
     kinfo.kernel_and_modules_total_size = kinfo.kernel_size + kinfo.modules_total_size;
 
+    kernel_info_print(&kinfo);
+
     paging_clear();
     paging_identity();
     /* kinfo.freepde_start = */ paging_mapkernel(&kinfo);