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#

# Copyright (C) 2005 Martin Decky

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

# - Redistributions of source code must retain the above copyright

#   notice, this list of conditions and the following disclaimer.

# - Redistributions in binary form must reproduce the above copyright

#   notice, this list of conditions and the following disclaimer in the

#   documentation and/or other materials provided with the distribution.

# - The name of the author may not be used to endorse or promote products

#   derived from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#

## Include configuration

#

-include ../version

-include Makefile.config

## Common compiler flags

#

DEFS = -D$(ARCH) -DARCH=\"$(ARCH)\" -DRELEASE=\"$(RELEASE)\" "-DNAME=\"$(NAME)\"" -DKERNEL

CFLAGS = -fno-builtin -fomit-frame-pointer -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Werror -O3 -nostdlib -nostdinc -Igeneric/include/

LFLAGS = -M

AFLAGS =

ifdef REVISION

	DEFS += "-DREVISION=\"$(REVISION)\""

endif

ifdef TIMESTAMP

	DEFS += "-DTIMESTAMP=\"$(TIMESTAMP)\""

endif

## Setup kernel configuration

#

-include arch/$(ARCH)/Makefile.inc

-include genarch/Makefile.inc

ifeq ($(CONFIG_DEBUG),y)

	DEFS += -DCONFIG_DEBUG

endif

ifeq ($(CONFIG_DEBUG_SPINLOCK),y)

	DEFS += -DCONFIG_DEBUG_SPINLOCK

endif

ifeq ($(CONFIG_DEBUG_AS_WATCHPOINT),y)

	DEFS += -DCONFIG_DEBUG_AS_WATCHPOINT

endif

ifeq ($(CONFIG_FPU_LAZY),y)

	DEFS += -DCONFIG_FPU_LAZY

endif

ifeq ($(CONFIG_DEBUG_ALLREGS),y)

	DEFS += -DCONFIG_DEBUG_ALLREGS

endif

ifeq ($(CONFIG_VHPT),y)

	DEFS += -DCONFIG_VHPT

endif

ifeq ($(CONFIG_POWEROFF),y)

	DEFS += -DCONFIG_POWEROFF

endif

ifeq ($(CONFIG_FB),y)

	ifeq ($(ARCH),ia32)

		DEFS += -DCONFIG_VESA_WIDTH=$(CONFIG_VESA_WIDTH)

		DEFS += -DCONFIG_VESA_HEIGHT=$(CONFIG_VESA_HEIGHT)

		DEFS += -DCONFIG_VESA_BPP=$(CONFIG_VESA_BPP)

	endif

	ifeq ($(ARCH),amd64)

		DEFS += -DCONFIG_VESA_WIDTH=$(CONFIG_VESA_WIDTH)

		DEFS += -DCONFIG_VESA_HEIGHT=$(CONFIG_VESA_HEIGHT)

		DEFS += -DCONFIG_VESA_BPP=$(CONFIG_VESA_BPP)

	endif

	ifeq ($(ARCH),xen32)

		DEFS += -DCONFIG_VESA_WIDTH=$(CONFIG_VESA_WIDTH)

		DEFS += -DCONFIG_VESA_HEIGHT=$(CONFIG_VESA_HEIGHT)

		DEFS += -DCONFIG_VESA_BPP=$(CONFIG_VESA_BPP)

	endif

endif

## Toolchain configuration

#

ifeq ($(COMPILER),native)

	CC = gcc

	AS = as

	LD = ld

	OBJCOPY = objcopy

	OBJDUMP = objdump

else

	CC = $(TOOLCHAIN_DIR)/$(TARGET)-gcc

	AS = $(TOOLCHAIN_DIR)/$(TARGET)-as

	LD = $(TOOLCHAIN_DIR)/$(TARGET)-ld

	OBJCOPY = $(TOOLCHAIN_DIR)/$(TARGET)-objcopy

	OBJDUMP = $(TOOLCHAIN_DIR)/$(TARGET)-objdump

endif

## Generic kernel sources

#

GENERIC_SOURCES = \

	generic/src/adt/bitmap.c \

	generic/src/adt/btree.c \

	generic/src/adt/hash_table.c \

	generic/src/adt/list.c \

	generic/src/console/chardev.c \

	generic/src/console/console.c \

	generic/src/console/kconsole.c \

	generic/src/console/klog.c \

	generic/src/console/cmd.c \

	generic/src/cpu/cpu.c \

	generic/src/ddi/ddi.c \

	generic/src/interrupt/interrupt.c \

	generic/src/main/main.c \

	generic/src/main/kinit.c \

	generic/src/main/uinit.c \

	generic/src/main/version.c \

	generic/src/proc/scheduler.c \

	generic/src/proc/thread.c \

	generic/src/proc/task.c \

	generic/src/proc/the.c \

	generic/src/syscall/syscall.c \

	generic/src/syscall/copy.c \

	generic/src/mm/buddy.c \

	generic/src/mm/frame.c \

	generic/src/mm/page.c \

	generic/src/mm/tlb.c \

	generic/src/mm/as.c \

	generic/src/mm/backend_anon.c \

	generic/src/mm/backend_elf.c \

	generic/src/mm/backend_phys.c \

	generic/src/mm/slab.c \

	generic/src/lib/func.c \

	generic/src/lib/memstr.c \

	generic/src/lib/sort.c \

	generic/src/lib/elf.c \

	generic/src/printf/printf_core.c \

	generic/src/printf/printf.c \

	generic/src/printf/sprintf.c \

	generic/src/printf/snprintf.c \

	generic/src/printf/vprintf.c \

	generic/src/printf/vsprintf.c \

	generic/src/printf/vsnprintf.c \

	generic/src/debug/symtab.c \

	generic/src/time/clock.c \

	generic/src/time/timeout.c \

	generic/src/time/delay.c \

	generic/src/preempt/preemption.c \

	generic/src/synch/spinlock.c \

	generic/src/synch/condvar.c \

	generic/src/synch/rwlock.c \

	generic/src/synch/mutex.c \

	generic/src/synch/semaphore.c \

	generic/src/synch/waitq.c \

	generic/src/synch/futex.c \

	generic/src/smp/ipi.c \

	generic/src/ipc/ipc.c \

	generic/src/ipc/sysipc.c \

	generic/src/ipc/ipcrsc.c \

	generic/src/ipc/irq.c \

	generic/src/security/cap.c \

	generic/src/sysinfo/sysinfo.c

## Test sources

#

ifneq ($(CONFIG_TEST),)

	DEFS += -DCONFIG_TEST

	GENERIC_SOURCES += test/$(CONFIG_TEST)/test.c

endif

GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES)))

ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES)))

GENARCH_OBJECTS := $(addsuffix .o,$(basename $(GENARCH_SOURCES)))

.PHONY: all build config distclean clean archlinks depend disasm

all:

	../tools/config.py kernel.config default $(ARCH) $(COMPILER) $(CONFIG_DEBUG) $(MACHINE)

	$(MAKE) -C . build

build: kernel.bin disasm

config:

	-rm Makefile.depend

	tools/config.py kernel.config

-include Makefile.depend

distclean: clean

	-rm Makefile.config

clean:

	-rm -f kernel.bin kernel.raw kernel.map kernel.map.pre kernel.objdump kernel.disasm generic/src/debug/real_map.bin Makefile.depend* generic/include/arch generic/include/genarch arch/$(ARCH)/_link.ld

	find generic/src/ arch/*/src/ genarch/src/ test/ -name '*.o' -follow -exec rm \{\} \;

	for arch in arch/* ; do \

	    [ -e $$arch/_link.ld ] && rm $$arch/_link.ld 2>/dev/null ; \

	done ; exit 0

archlinks:

	ln -sfn ../../arch/$(ARCH)/include/ generic/include/arch

	ln -sfn ../../genarch/include/ generic/include/genarch

depend: archlinks

	-makedepend $(DEFS) $(CFLAGS) -f - $(ARCH_SOURCES) $(GENARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend 2> /dev/null

arch/$(ARCH)/_link.ld: arch/$(ARCH)/_link.ld.in

	$(CC) $(DEFS) $(CFLAGS) -D__ASM__ -E -x c $< | grep -v "^\#" > $@

generic/src/debug/real_map.bin: depend arch/$(ARCH)/_link.ld $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS)

	$(OBJCOPY) -I binary -O $(BFD_NAME) -B $(BFD_ARCH) --prefix-sections=symtab Makefile generic/src/debug/empty_map.o

	$(LD) -T arch/$(ARCH)/_link.ld $(LFLAGS) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) generic/src/debug/empty_map.o -o $@ -Map kernel.map.pre

	$(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > kernel.objdump

	tools/genmap.py kernel.map.pre kernel.objdump generic/src/debug/real_map.bin 

	# Do it once again, this time to get correct even the symbols

	# on architectures, that have bss after symtab

	$(OBJCOPY) -I binary -O $(BFD_NAME) -B $(BFD_ARCH) --prefix-sections=symtab generic/src/debug/real_map.bin generic/src/debug/sizeok_map.o

	$(LD) -T arch/$(ARCH)/_link.ld $(LFLAGS) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) generic/src/debug/sizeok_map.o -o $@ -Map kernel.map.pre

	$(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > kernel.objdump

	tools/genmap.py kernel.map.pre kernel.objdump generic/src/debug/real_map.bin 

generic/src/debug/real_map.o: generic/src/debug/real_map.bin

	$(OBJCOPY) -I binary -O $(BFD_NAME) -B $(BFD_ARCH) --prefix-sections=symtab $< $@

kernel.raw: depend arch/$(ARCH)/_link.ld $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) generic/src/debug/real_map.o

	$(LD) -T arch/$(ARCH)/_link.ld $(LFLAGS) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) generic/src/debug/real_map.o -o $@ -Map kernel.map

kernel.bin: kernel.raw

	$(OBJCOPY) -O $(BFD) kernel.raw kernel.bin

disasm: kernel.raw

	$(OBJDUMP) -d kernel.raw > kernel.disasm

%.o: %.S

	$(CC) $(DEFS) $(CFLAGS) -D__ASM__ -c $< -o $@

%.o: %.s

	$(AS) $(AFLAGS) $< -o $@

%.o: %.c

	$(CC) $(DEFS) $(CFLAGS) -c $< -o $@