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018 CC=gcc
019 LD=ld
020 CP=cp
021 STRIP=strip
022 CFLAGS = -Wall -nostdinc -ffreestanding -DKERNEL_SOS -O -g
023 LIBGCC = $(shell $(CC) -print-libgcc-file-name)
024 LDFLAGS = --warn-common -nostdlib
025 OBJECTS = bootstrap/multiboot.o \
026 hwcore/idt.o hwcore/gdt.o \
027 hwcore/swintr.o hwcore/swintr_wrappers.o \
028 hwcore/exception.o hwcore/exception_wrappers.o \
029 hwcore/irq.o hwcore/irq_wrappers.o hwcore/i8259.o \
030 hwcore/paging.o hwcore/i8254.o \
031 hwcore/cpu_context.o hwcore/cpu_context_switch.o \
032 hwcore/mm_context.o \
033 sos/kmem_vmm.o sos/kmem_slab.o sos/kmalloc.o \
034 sos/physmem.o sos/klibc.o \
035 sos/thread.o sos/kwaitq.o \
036 sos/time.o sos/sched.o sos/ksynch.o \
037 sos/process.o sos/syscall.o \
038 sos/assert.o sos/main.o sos/mouse_sim.o \
039 sos/uaccess.o sos/calcload.o \
040 sos/umem_vmm.o sos/binfmt_elf32.o \
041 drivers/x86_videomem.o drivers/bochs.o \
042 drivers/zero.o drivers/mem.o \
043 drivers/kbd.o drivers/kbdmapfr.o \
044 drivers/tty.o drivers/serial.o drivers/console.o \
045 sos/hash.o sos/fs.o sos/fs_nscache.o \
046 drivers/fs_virtfs.o sos/chardev.o \
047 userland/userprogs.kimg
048
049 KERNEL_OBJ = sos.elf
050 KERNEL_LOAD = sos.gz
051 MULTIBOOT_IMAGE = fd.img
052 PWD := $(shell pwd | sed 's/"/\\\"/g;s/\$$/\\\$$/g')
053
054
055 all: $(MULTIBOOT_IMAGE)
056
057 $(MULTIBOOT_IMAGE): $(KERNEL_LOAD)
058 ./support/build_image.sh $@ $<
059
060 $(KERNEL_LOAD): $(KERNEL_OBJ)
061 $(CP) $< $<.strip && $(STRIP) -sx -R .comment $<.strip
062 gzip < $<.strip > $@
063
064 $(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds
065 $(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS) $(LIBGCC)
066 -nm -C $@ | cut -d ' ' -f 1,3 > sos.map
067 size $@
068
069 -include .mkvars
070
071 # Create the userland programs to include in the kernel image
072 userland/userprogs.kimg: FORCE
073 $(MAKE) -C userland
074
075
076 %.o: %.c
077 $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -o "$@"
078
079
080 %.o: %.S
081 $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -DASM_SOURCE=1 -o "$@"
082
083 FORCE:
084 @
085
086
087 clean:
088 $(RM) *.img *.o mtoolsrc *~ menu.txt *.img *.elf *.bin *.strip *.map
089 $(RM) *.log *.out bochs* sos.gz
090 $(RM) bootstrap/*.o bootstrap/*~
091 $(RM) drivers/*.o drivers/*~
092 $(RM) hwcore/*.o hwcore/*~
093 $(RM) sos/*.o sos/*~
094 $(RM) support/*~
095 $(RM) extra/*~
096 $(MAKE) -C extra clean
097 $(MAKE) -C userland clean