...

README.md

@@ -5,8 +5,8 @@
 - `make`
 - `grub`
 - `mtools`
-- `gcc`
+- `i386-elf-gcc`
-- `ld`
+- `i386-elf-ld`
 
 ## Building
 

makefile

@@ -1,8 +1,8 @@
-CC = gcc
+CC = i386-elf-gcc
-LD = ld
+LD = i386-elf-ld
 
-CFLAGS = -m32 -ffreestanding -fno-pie -fno-stack-protector -fno-builtin -Wall -Wextra -Werror -Wshadow -std=c23
+CFLAGS = -m32 -ffreestanding -fno-builtin -Wall -Wextra -Werror -Wshadow -std=c23
-LDFLAGS = -m elf_i386 -Ttext 0x100000 -nostdlib
+LDFLAGS = -m elf_i386
 
 all: .build/nub-os.iso
 
@@ -19,7 +19,7 @@ build-dir:
 	grub-mkrescue -o .build/nub-os.iso .build/iso/
 
 .build/kernel: build-dir .build/boot.o .build/kernel.o .build/vga.o
-	$(LD) $(LDFLAGS) -Ttext 0x100000 -o .build/kernel .build/boot.o .build/kernel.o .build/vga.o
+	$(LD) $(LDFLAGS) -T src/boot.ld -o .build/kernel .build/boot.o .build/kernel.o .build/vga.o
 
 .build/kernel.o: build-dir src/kernel.c
 	$(CC) $(CFLAGS) -c -o .build/kernel.o src/kernel.c

src/boot.asm

@@ -3,6 +3,7 @@
 %define LEN         header_end - header_start
 %define CHECKSUM    -(MAGIC + ARCH + LEN)
 
+section .multiboot2
 header_start:
 align 4
     dd MAGIC
@@ -25,7 +26,7 @@ global _start
 _start:
     mov esp, stack_top
     call kernel_main
-hang:
     cli
+hang:
     hlt
     jmp hang

src/boot.ld

@@ -0,0 +1,28 @@
+ENTRY(_start)
+
+SECTIONS
+{
+	. = 2M;
+
+	.text BLOCK(4K) : ALIGN(4K)
+	{
+		*(.multiboot2)
+		*(.text)
+	}
+
+	.rodata BLOCK(4K) : ALIGN(4K)
+	{
+		*(.rodata)
+	}
+
+	.data BLOCK(4K) : ALIGN(4K)
+	{
+		*(.data)
+	}
+
+	.bss BLOCK(4K) : ALIGN(4K)
+	{
+		*(COMMON)
+		*(.bss)
+	}
+}