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The LXR Cross Referencer for SOS

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001 ## Copyright (C) 2004,2005  The SOS Team
002 ##
003 ## This program is free software; you can redistribute it and/or
004 ## modify it under the terms of the GNU General Public License
005 ## as published by the Free Software Foundation; either version 2
006 ## of the License, or (at your option) any later version.
007 ## 
008 ## This program is distributed in the hope that it will be useful,
009 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
010 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
011 ## GNU General Public License for more details.
012 ## 
013 ## You should have received a copy of the GNU General Public License
014 ## along with this program; if not, write to the Free Software
015 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
016 ## USA. 
017 
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) # To benefit from FP/64bits artihm.
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 # Main target
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 # Create objects from C source code
076 %.o: %.c
077         $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -o "$@"
078 
079 # Create objects from assembler (.S) source code
080 %.o: %.S
081         $(CC) "-I$(PWD)" -c "$<" $(CFLAGS) -DASM_SOURCE=1 -o "$@"
082 
083 FORCE:
084         @
085 
086 # Clean directory
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

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