From 5d3179d0e2c3915af65dedef0952672220ac4714 Mon Sep 17 00:00:00 2001
From: Alexey Gavrilov <rebovas@yahoo.com>
Date: Sat, 10 May 2025 16:04:55 +0700
Subject: Kheap section + metadata

---
 arch/SecondaryInit.cpp |  2 ++
 arch/SecondaryInit.h   |  2 ++
 kernel/boot.s          | 15 ++++++++++++---
 kernel/linker.ld       | 24 ++++++++++++++++++++----
 4 files changed, 36 insertions(+), 7 deletions(-)

diff --git a/arch/SecondaryInit.cpp b/arch/SecondaryInit.cpp
index 900f84b..7eba61b 100644
--- a/arch/SecondaryInit.cpp
+++ b/arch/SecondaryInit.cpp
@@ -3,6 +3,8 @@
 void SecondaryInitialization::processorInitialize()
 {
     PrimaryInitialization::processorInitialize();
+
+    Segments();
 };
 
 void SecondaryInitialization::devicesInitialize()
diff --git a/arch/SecondaryInit.h b/arch/SecondaryInit.h
index 795d96a..53ff191 100644
--- a/arch/SecondaryInit.h
+++ b/arch/SecondaryInit.h
@@ -1,4 +1,6 @@
 #include <types.h>
+#include "../kernel/mem/Segments.h"
+#include "../kernel/mem/Kheap.h"
 
 #if defined(__IAPC)
 #include "x86/PrimaryInit.h"
diff --git a/kernel/boot.s b/kernel/boot.s
index 798e7e3..534beb6 100644
--- a/kernel/boot.s
+++ b/kernel/boot.s
@@ -2,17 +2,19 @@ MBFLAGS equ 0
 MAGIC equ 0x1BADB002
 CHECKSUM equ -(MAGIC + MBFLAGS)
 
-section .multiboot
+            section .multiboot
 align 4
     dd MAGIC
     dd MBFLAGS
     dd CHECKSUM
 
 section .bss
+resb 512
 align 16
-resb 160
+; align 16 bytes according to the System V ABI standard
+; Stack space
 stack_bottom:
-resb 16384
+resb 16384 ; 16KiB
 stack_top:
 
 section .text
@@ -25,3 +27,10 @@ _start:
 .hang:      hlt
             jmp .hang
 .end:
+
+section .kheap
+kheap_top:
+; Kernel heap space
+; Change this value together Kheap::size varibale (mem/Kheap.h file)
+resb 4096
+kheap_bottom:
diff --git a/kernel/linker.ld b/kernel/linker.ld
index ae4d98d..abee596 100644
--- a/kernel/linker.ld
+++ b/kernel/linker.ld
@@ -6,28 +6,44 @@ SECTIONS
 
     .multiboot :
     {
+        _startMultiboot = .;
         *(.multiboot)
+        _endMultiboot = .;
     }
+
     .text BLOCK(4K) : ALIGN(4K)
     {
+        _startText = .;
         *(.text)
-        *(.eh_frame)
-        *(.ctors)
+        _endText = .;
     }
 
     .rodata BLOCK(4K) : ALIGN(4k)
     {
+        _startRodata = .;
         *(.rodata)
+        _endRodata = .;
     }
 
     .data BLOCK(4K) : ALIGN(4K)
     {
+        _startData = .;
         *(.data)
+        _endData = .;
     }
 
-    .bss BLOCK(4K) : ALIGN(4K)
+    .bss BLOCK(16K) : ALIGN(16K)
     {
-        *(COMMON)
+        _startBss = .;
         *(.bss)
+        _endBss = .;
     }
+
+    .kheap BLOCK(4k) : ALIGN(4k)
+    {
+        _startKheap = .;
+        *(.kheap)
+        _endKheap = .;
+    }
+
 }
-- 
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