From 4aad3cce1d22c39dfa9c0d360737fe6d92f38595 Mon Sep 17 00:00:00 2001
From: trimill <trimill@trimillxyz.org>
Date: Fri, 26 Jan 2024 22:29:49 -0500
Subject: added boilerplate (todo make it amd64)

---
 Makefile | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index e69de29..9e081c5 100644
--- a/Makefile
+++ b/Makefile
@@ -0,0 +1,45 @@
+CC=cc
+LD=ld
+
+CFLAGS=-ffreestanding -g -Wall -Wextra -pedantic -lgcc
+
+SRC_DIR=src
+INCLUDE_DIR=include
+BUILD_DIR=build
+
+K_BIN_NAME=kernel.bin
+ISO_NAME=os_image.iso
+
+C_SRC=$(shell find $(SRC_DIR) -type f -name "*.c")
+C_OBJ=$(patsubst %.c,$(BUILD_DIR)/%.o,$(C_SRC))
+
+H_SRC=$(shell find $(SRC_DIR) -type f -name "*.h") $(shell find $(INCLUDE_DIR) -type f -name "*.h")
+
+A_SRC=$(shell find $(SRC_DIR) -type f -name "*.S")
+A_OBJ=$(patsubst %.S,$(BUILD_DIR)/%.S.o,$(A_SRC))
+
+.PHONY: all clean
+
+all: $(BUILD_DIR)/$(ISO_NAME)
+
+clean:
+	rm -rf $(BUILD_DIR)/*
+
+$(A_OBJ): $(BUILD_DIR)/%.S.o : %.S
+	@mkdir -p $(@D)
+	nasm $< -f elf64 -o $@
+
+$(C_OBJ): $(BUILD_DIR)/%.o : %.c
+	@mkdir -p $(@D)
+	$(CC) -c $(CFLAGS) -o $@ $<
+
+$(BUILD_DIR)/$(K_BIN_NAME): $(SRC_DIR)/arch/amd64/linker.ld $(A_OBJ) $(C_OBJ) $(H_SRC)
+	@mkdir -p $(@D)
+	$(LD) -nmagic -o $(BUILD_DIR)/$(K_BIN_NAME) -T $(SRC_DIR)/arch/amd64/linker.ld $(A_OBJ) $(C_OBJ)
+
+$(BUILD_DIR)/$(ISO_NAME): $(BUILD_DIR)/$(K_BIN_NAME) grub.cfg
+	@mkdir -p $(@D)
+	@mkdir -p $(BUILD_DIR)/iso/boot/grub
+	cp grub.cfg $(BUILD_DIR)/iso/boot/grub
+	cp $(BUILD_DIR)/$(K_BIN_NAME) $(BUILD_DIR)/iso/boot
+	grub-mkrescue -o $(BUILD_DIR)/$(ISO_NAME) $(BUILD_DIR)/iso
-- 
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