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Makefile for personal kernel development.
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| # change application name here (executable output name) | |
| TARGET=kernel | |
| LINKERSCRIPT=link.ld | |
| # compiler | |
| CC=gcc | |
| ASM=nasm | |
| QEMU=qemu-system-i386 -kernel | |
| LD=ld | |
| # Specific C compiler flags | |
| OPT=-O2 | |
| # OPT=-ggdb | |
| WARN=-Wall -Wextra | |
| STD=c99 | |
| # compiler, assembler, linker flags | |
| CCFLAGS= -m32 $(WARN) -std="$(STD)" $(OPT) #-pipe | |
| ASMFLAGS= -f elf32 | |
| LINKERFLAGS= -m elf_i386 -T $(LINKERSCRIPT) | |
| # source files | |
| CCSRCS = $(wildcard *.c) | |
| ASMSRCS = $(wildcard *.asm) | |
| SRCS = $(CCSRCS) $(ASMSRCS) | |
| # object files | |
| CCOBJS = $(patsubst %.c, %_c.o, $(CCSRCS)) | |
| ASMOBJS = $(patsubst %.asm, %_asm.o, $(ASMSRCS)) | |
| OBJS = $(CCOBJS) $(ASMOBJS) | |
| .PHONY: default all run clean | |
| default: $(TARGET) | |
| all: default | |
| %_c.o: %.c | |
| $(CC) $(CCFLAGS) -c $< -o $@ | |
| %_asm.o: %.asm | |
| $(ASM) $(ASMFLAGS) $< -o $@ | |
| $(TARGET): $(OBJS) | |
| $(LD) $(LINKERFLAGS) -o $(TARGET) $(OBJS) | |
| run: all | |
| $(QEMU) $(TARGET) | |
| .PRECIOUS: $(TARGET) $(OBJS) | |
| clean: | |
| rm -f *.o $(TARGET) |
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