From 06d05938cc828901703112b99740c2e90a392b88 Mon Sep 17 00:00:00 2001
From: Alexey Gavrilov <rebovas@yahoo.com>
Date: Tue, 8 Aug 2023 18:38:07 +0700
Subject: First commit

---
 makefile | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 makefile

(limited to 'makefile')

diff --git a/makefile b/makefile
new file mode 100644
index 0000000..1e07743
--- /dev/null
+++ b/makefile
@@ -0,0 +1,30 @@
+CC = gcc# compiler
+LD = ld# linker
+ASM = nasm# assembler
+# what is the flag -O2 
+CFLAGS = -c -Wall -ffreestanding -nostdinc -nostdlib -lgcc# c compiler flags
+# flag elf32 allow decrease object file size
+AFLAGS = -f elf64# asm compiler flags
+BDIR = build# build directory
+
+.PHONY: install
+
+install: build
+	@echo "Creating an iso image of OS"
+	cp ./$(BDIR)/kernel.bin ./iso/os/
+	grub-mkrescue -o ./$(BDIR)/kernel.iso ./iso
+
+build:
+	mkdir $(BDIR) 
+	@echo "Compile source files..."
+	$(CC) $(CFLAGS) -o ./$(BDIR)/kernel.o ./kernel/kernel.c
+	$(ASM) $(AFLAGS) -o ./$(BDIR)/boot.o ./kernel/boot.s
+	@echo "Link object files..."
+	$(LD) -m elf_x86_64 -o ./$(BDIR)/kernel.bin -T ./kernel/linker.ld ./$(BDIR)/*.o
+	@echo "Project was built"
+
+clean:
+	rm -rf ./build
+
+run:
+	 qemu-system-i386 -cdrom ./$(BDIR)/kernel.iso
-- 
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