Initial commit.

1 files changed, 53 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7478d63
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,53 @@
+SRC_DIR   := src
+BUILD_DIR := build
+OBJ_DIR   := $(BUILD_DIR)
+BIN_DIR   := $(BUILD_DIR)/bin
+
+IMG := $(BIN_DIR)/kernel8.img
+ELF := $(BIN_DIR)/kernel8.elf
+
+SRC     := $(wildcard $(SRC_DIR)/*.c)
+OBJ     := $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)
+ASM_SRC := $(wildcard $(SRC_DIR)/*.s)
+ASM_OBJ := $(ASM_SRC:$(SRC_DIR)/%.s=$(OBJ_DIR)/%.o)
+LINK    := $(SRC_DIR)/link.ld
+
+CPPFLAGS := -I$(SRC_DIR) -MMD -MP
+CFLAGS   := -Wall -Wextra -O2 -ffreestanding -nostdinc -nostdlib -nostartfiles
+LDFLAGS  := -nostdlib
+
+TOOLCHAIN := $(HOME)/bin/arm-gnu-toolchain-14.2.rel1-x86_64-aarch64-none-elf/bin
+AS        := $(TOOLCHAIN)/aarch64-none-elf-as
+CC        := $(TOOLCHAIN)/aarch64-none-elf-gcc
+LD        := $(TOOLCHAIN)/aarch64-none-elf-ld
+OBJCOPY   := $(TOOLCHAIN)/aarch64-none-elf-objcopy
+
+.PHONY: all clean
+
+all: $(IMG)
+
+$(IMG): $(ELF) | $(BIN_DIR)
+        @echo Building $@
+        $(OBJCOPY) -O binary $(ELF) $@
+
+$(ELF): $(OBJ) $(ASM_OBJ) | $(BIN_DIR)
+        @echo Building $@
+        $(LD) $(LDFLAGS) $^ -T $(LINK) -o $@
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c | $(BUILD_DIR)
+        @echo Building $< "->" $@
+        $(CC) $(CFLAGS) -c $< -o $@
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.s | $(BUILD_DIR)
+        @echo Building $< "->" $@
+        $(AS) $< -o $@
+
+clean:
+        rm -rf $(BUILD_DIR)
+
+$(BUILD_DIR):
+        mkdir -p $(BUILD_DIR)
+        
+$(BIN_DIR):
+        mkdir -p $(BIN_DIR)
+