Import code for article1, 2, 3, 4

1 files changed, 56 insertions, 0 deletions

diff --git a/sos-code-article2/Makefile b/sos-code-article2/Makefile
new file mode 100644
index 0000000..fd1fa89
--- /dev/null
+++ b/sos-code-article2/Makefile
@@ -0,0 +1,56 @@
+CC=i586-elf-gcc
+LD=i586-elf-ld
+CFLAGS  = -Wall -nostdlib -nostdinc -ffreestanding -DKERNEL_SOS
+LDFLAGS = --warn-common
+OBJECTS = bootstrap/multiboot.o					\
+          hwcore/idt.o hwcore/gdt.o				\
+	  hwcore/exception.o hwcore/exception_wrappers.o	\
+	  hwcore/irq.o hwcore/irq_wrappers.o hwcore/i8259.o	\
+	  hwcore/i8254.o drivers/x86_videomem.o drivers/bochs.o	\
+	  sos/klibc.o sos/main.o
+
+KERNEL_OBJ   = sos.elf
+MULTIBOOT_IMAGE = cdrom.iso
+PWD := $(shell pwd)
+
+# Main target
+all: $(MULTIBOOT_IMAGE)
+
+$(MULTIBOOT_IMAGE): $(KERNEL_OBJ)
+	# ./support/build_image.sh $@ $<
+	if [ ! -e cdrom/boot/grub/stage2_eltorito ]; then \
+		mkdir -p cdrom/boot/grub; \
+		echo "Please copy grub's stage2_eltorito to cdrom/boot/grub."; \
+		exit -1; \
+	fi
+	cp $(KERNEL_OBJ) cdrom
+	echo timeout 0 > cdrom/boot/grub/menu.lst
+	echo title Simple OS >> cdrom/boot/grub/menu.lst
+	echo kernel /$(KERNEL_OBJ) >> cdrom/boot/grub/menu.lst
+	genisoimage -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 \
+	 -boot-info-table -input-charset ascii -A SOS -o $(MULTIBOOT_IMAGE) cdrom
+
+$(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds
+	$(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS)
+	-nm -C $@ | cut -d ' ' -f 1,3 > sos.map
+
+-include .mkvars
+
+# Create objects from C source code
+%.o: %.c
+	$(CC) -I$(PWD) -c $< $(CFLAGS) -o $@
+
+# Create objects from assembler (.S) source code
+%.o: %.S
+	$(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_SOURCE=1 -o $@
+
+# Clean directory
+clean:
+	$(RM) *.img *.iso *.o mtoolsrc *~ menu.txt *.img *.elf *.bin *.map
+	$(RM) *.log *.out bochs*
+	$(RM) bootstrap/*.o bootstrap/*~
+	$(RM) drivers/*.o drivers/*~
+	$(RM) hwcore/*.o hwcore/*~
+	$(RM) sos/*.o sos/*~
+	$(RM) support/*~
+	$(RM) extra/*~