The LXR Cross Referencer for SOS

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001 CC=gcc
002 CFLAGS  = -Wall -nostdlib -nostdinc -ffreestanding -DKERNEL_SOS
003 LDFLAGS = --warn-common
004 OBJECTS = bootstrap/multiboot.o                                 \
005           hwcore/idt.o hwcore/gdt.o                             \
006           hwcore/exception.o hwcore/exception_wrappers.o        \
007           hwcore/irq.o hwcore/irq_wrappers.o hwcore/i8259.o     \
008           hwcore/paging.o                                       \
009           hwcore/i8254.o drivers/x86_videomem.o drivers/bochs.o \
010           hwcore/cpu_context.o hwcore/cpu_context_switch.o      \
011           sos/kmem_vmm.o sos/kmem_slab.o sos/kmalloc.o          \
012           sos/physmem.o sos/klibc.o                             \
013           sos/assert.o sos/main.o
014 
015 KERNEL_OBJ   = sos.elf
016 MULTIBOOT_IMAGE = fd.img
017 PWD := $(shell pwd)
018 
019 # Main target
020 all: $(MULTIBOOT_IMAGE)
021 
022 $(MULTIBOOT_IMAGE): $(KERNEL_OBJ)
023         ./support/build_image.sh $@ $<
024 
025 $(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds
026         $(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS)
027         -nm -C $@ | cut -d ' ' -f 1,3 > sos.map
028         size $@
029 
030 -include .mkvars
031 
032 # Create objects from C source code
033 %.o: %.c
034         $(CC) -I$(PWD) -c $< $(CFLAGS) -o $@
035 
036 # Create objects from assembler (.S) source code
037 %.o: %.S
038         $(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_SOURCE=1 -o $@
039 
040 # Clean directory
041 clean:
042         $(RM) *.img *.o mtoolsrc *~ menu.txt *.img *.elf *.bin *.map
043         $(RM) *.log *.out bochs*
044         $(RM) bootstrap/*.o bootstrap/*~
045         $(RM) drivers/*.o drivers/*~
046         $(RM) hwcore/*.o hwcore/*~
047         $(RM) sos/*.o sos/*~
048         $(RM) support/*~
049         $(RM) extra/*~

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