ZeOS Makefile

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##############ZeOS #############
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########## Makefile ############
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# package dev86 is required
AS86    = as86 -0 -a
LD86    = ld86 -0

HOSTCFLAGS = -m32 -Wall -Wstrict-prototypes -g
HOSTCC  = gcc
CC      = gcc
AS      = as
LD      = ld
OBJCOPY = objcopy -O binary -R .note -R .comment -S

INCLUDEDIR = include

# Define here flags to compile the tests if needed
JP =

CFLAGS = -m32 -O2  -g $(JP) -fno-omit-frame-pointer -ffreestanding -Wall -I$(INCLUDEDIR)
ASMFLAGS = -I$(INCLUDEDIR)
ASFLAGS = --32 $(ASMFLAGS)
SYSLDFLAGS = -T system.lds
USRLDFLAGS = -T user.lds
LINKFLAGS = -m elf_i386 -g

SYSOBJ = interrupt.o entry.o sys_call_table.o io.o sched.o sys.o mm.o devices.o utils.o hardware.o list.o

LIBZEOS = -L . -l zeos

#add to USROBJ the object files required to complete the user program
USROBJ = libc.o # libjp.a

all:zeos.bin

zeos.bin: bootsect system build user
    $(OBJCOPY) system system.out
    $(OBJCOPY) user user.out
    ./build bootsect system.out user.out > zeos.bin

build: build.c
    $(HOSTCC) $(HOSTCFLAGS) -o $@ $<

bootsect: bootsect.o
    $(LD86) -s -o $@ $<

bootsect.o: bootsect.s
    $(AS86) -o $@ $<

bootsect.s: bootsect.S Makefile
    $(CPP) $(ASMFLAGS) -traditional $< -o $@

entry.s: entry.S $(INCLUDEDIR)/asm.h $(INCLUDEDIR)/segment.h
    $(CPP) $(ASMFLAGS) -o $@ $<

sys_call_table.s: sys_call_table.S $(INCLUDEDIR)/asm.h $(INCLUDEDIR)/segment.h
    $(CPP) $(ASMFLAGS) -o $@ $<

user.o:user.c $(INCLUDEDIR)/libc.h

interrupt.o:interrupt.c $(INCLUDEDIR)/interrupt.h $(INCLUDEDIR)/segment.h $(INCLUDEDIR)/types.h

io.o:io.c $(INCLUDEDIR)/io.h

sched.o:sched.c $(INCLUDEDIR)/sched.h

libc.o:libc.c $(INCLUDEDIR)/libc.h

mm.o:mm.c $(INCLUDEDIR)/types.h $(INCLUDEDIR)/mm.h

sys.o:sys.c $(INCLUDEDIR)/devices.h

utils.o:utils.c $(INCLUDEDIR)/utils.h


system.o:system.c $(INCLUDEDIR)/hardware.h system.lds $(SYSOBJ) $(INCLUDEDIR)/segment.h $(INCLUDEDIR)/types.h $(INCLUDEDIR)/interrupt.h $(INCLUDEDIR)/system.h $(INCLUDEDIR)/sched.h $(INCLUDEDIR)/mm.h $(INCLUDEDIR)/io.h $(INCLUDEDIR)/mm_address.h


system: system.o system.lds $(SYSOBJ)
    $(LD) $(LINKFLAGS) $(SYSLDFLAGS) -o $@ $< $(SYSOBJ) $(LIBZEOS)

user: user.o user.lds $(USROBJ)
    $(LD) $(LINKFLAGS) $(USRLDFLAGS) -o $@ $< $(USROBJ)


clean:
    rm -f *.o *.s bochsout.txt parport.out system.out system bootsect zeos.bin user user.out *~ build

disk: zeos.bin
    dd if=zeos.bin of=/dev/fd0

emul: zeos.bin
    bochs -q -f .bochsrc

gdb: zeos.bin
    @echo "=================================================="
    @echo "GDB Usage:"
    @echo " gdb system"
    @echo " target remote localhost:1234"
    @echo " add-symbol-file user 0x100000"
    @echo "=================================================="
    bochs -q -f .bochsrc_gdb

emuldbg: zeos.bin
    bochs_nogdb -q -f .bochsrc