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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/ide.o drivers/kbd.o drivers/kbdmapfr.o \
044 drivers/serial.o drivers/tty.o drivers/part.o \
045 drivers/console.o \
046 sos/hash.o sos/fs.o sos/fs_nscache.o \
047 drivers/fs_virtfs.o sos/chardev.o sos/blkdev.o \
048 sos/blkcache.o sos/fs_pagecache.o \
049 userland/userprogs.kimg
050
051 KERNEL_OBJ = sos.elf
052 KERNEL_LOAD = sos.gz
053 MULTIBOOT_IMAGE = fd.img
054 PWD := $(shell pwd | sed 's/"/\\\"/g;s/\$$/\\\$$/g')
055
056
057 all: $(MULTIBOOT_IMAGE)
058
059 $(MULTIBOOT_IMAGE): $(KERNEL_LOAD)
060 ./support/build_image.sh $@ $<
061
062 $(KERNEL_LOAD): $(KERNEL_OBJ)
063 $(CP) $< $<.strip && $(STRIP) -sx -R .comment $<.strip
064 gzip < $<.strip > $@
065
066 $(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds
067 $(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS) $(LIBGCC)
068 -nm -C $@ | cut -d ' ' -f 1,3 > sos.map
069 size $@
070
071 -include .mkvars
072
073 # Create the userland programs to include in the kernel image
074 userland/userprogs.kimg: FORCE
075 $(MAKE) -C userland
076
077
078 %.o: %.c
079 $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -o "$@"
080
081
082 %.o: %.S
083 $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -DASM_SOURCE=1 -o "$@"
084
085 FORCE:
086 @
087
088
089 clean:
090 $(RM) fd*.img *.o mtoolsrc *~ menu.txt *.elf *.bin *.strip *.map
091 $(RM) *.log *.out bochs* sos.gz
092 $(RM) bootstrap/*.o bootstrap/*~
093 $(RM) drivers/*.o drivers/*~
094 $(RM) hwcore/*.o hwcore/*~
095 $(RM) sos/*.o sos/*~
096 $(RM) support/*~
097 $(RM) extra/*~
098 $(MAKE) -C extra clean
099 $(MAKE) -C userland clean