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| author | Joursoir <chat@joursoir.net> | 2021-09-30 11:09:51 +0000 |
|---|---|---|
| committer | Joursoir <chat@joursoir.net> | 2021-09-30 11:09:51 +0000 |
| commit | d3240ea301024ac42fe37b693fe4a780e7a6497f (patch) | |
| tree | 71da0483bd1072b768e04453af14128b539f3da7 | |
| parent | 59bc01df5b44e248079bb5d00dfabf7b99287440 (diff) | |
| download | mfsos-d3240ea301024ac42fe37b693fe4a780e7a6497f.tar.gz mfsos-d3240ea301024ac42fe37b693fe4a780e7a6497f.tar.bz2 mfsos-d3240ea301024ac42fe37b693fe4a780e7a6497f.zip | |
makefile: compile C kernel, make osbin from bootloader and kernel
| -rw-r--r-- | Makefile | 35 |
1 files changed, 22 insertions, 13 deletions
@@ -1,15 +1,11 @@ OSNAME = mfsos OSBIN = $(OSNAME).bin +KERNBIN = kernel.bin ARCH = x86 ARCH_BOOT = arch/$(ARCH)/boot BOOTBIN = $(ARCH_BOOT)/bootloader.bin -OBJECTS = kernel/main.o -LINKER = kernel/linker.ld -BOOT_SRC = kernel/boot.s -BOOT_OBJ = ${BOOT_SRC:.s=.o} - TARGET_TOOLS = $(HOME)/path/to/cross/compiler/i686-elf- CC = $(TARGET_TOOLS)gcc export CC @@ -20,29 +16,42 @@ export AS OBJDUMP = $(TARGET_TOOLS)objdump export OBJDUMP +C_SOURCES = \ + kernel/main.c \ + kernel/string.c \ + drivers/video/console/vgacon.c +OBJECTS = ${C_SOURCES:.c=.o} + .PHONY: all qemu clean all: $(OSBIN) -$(OSBIN): $(BOOT_OBJ) $(OBJECTS) - $(CC) -T $(LINKER) -o $(OSBIN) -ffreestanding -O2 -nostdlib \ - $(OBJECTS) $(BOOT_OBJ) -lgcc +$(OSBIN): $(BOOTBIN) $(KERNBIN) + cat $^ > $@ + dd if=/dev/zero bs=512 count=15 >> $@ $(BOOTBIN): $(MAKE) -C $(ARCH_BOOT) +$(KERNBIN): $(ARCH_BOOT)/head.o $(OBJECTS) + $(CC) -Wl,--oformat binary -Ttext 0x1000 -o $@ \ + -ffreestanding -nostdlib \ + $^ -lgcc + %.o: %.s $(AS) $< -o $@ %.o: %.c - $(CC) -c $< -o $@ \ - -std=gnu89 -ffreestanding -O2 -Wall \ - -Wpedantic -Wextra + $(CC) -std=gnu89 -Wall -ffreestanding -nostdlib \ + -I arch/$(ARCH)/include \ + -I kernel \ + -I drivers \ + -c $< -o $@ -lgcc qemu: $(OSBIN) qemu-system-i386 -kernel $(OSBIN) clean: $(MAKE) -C $(ARCH_BOOT) clean - rm -rf $(BOOT_OBJ) $(OBJECTS) - rm -rf $(OSBIN) + rm -rf $(ARCH_BOOT)/head.o kernel/main.o + rm -rf $(KERNBIN) $(OSBIN) $(OBJECTS) |