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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

INCLUDES = generic/include

OPTIMIZATION = 3

## Common compiler flags

#

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

	-DKERNEL

GCC_CFLAGS = -I$(INCLUDES) -O$(OPTIMIZATION) \

	-fno-builtin -fomit-frame-pointer -Wall -Wextra -Wno-unused-parameter -Wmissing-prototypes -Werror \

	-nostdlib -nostdinc

ICC_CFLAGS = -I$(INCLUDES) -O$(OPTIMIZATION) \

	-fno-builtin -fomit-frame-pointer -Wall -Wmissing-prototypes -Werror \

	-nostdlib -nostdinc \

	-wd170

SUNCC_CFLAGS = -I$(INCLUDES) -xO$(OPTIMIZATION) \

	-xnolib -xc99=all -features=extensions \

	-erroff=E_ZERO_SIZED_STRUCT_UNION

LFLAGS = -M

AFLAGS =

ifdef REVISION

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

endif

ifdef TIMESTAMP

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

endif

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

-include genarch/Makefile.inc

## The at-sign

#

# The $(ATSIGN) variable holds the ASCII character representing the at-sign

# ('@') used in various $(AS) constructs (e.g. @progbits). On architectures that

# don't use '@' for starting a comment, $(ATSIGN) is merely '@'. However, on

# those that do use it for starting a comment (e.g. arm32), $(ATSIGN) must be

# defined as the percentile-sign ('%') in the architecture-dependent

# Makefile.inc.

#

ATSIGN ?= @

## Cross-platform assembly to start a symtab.data section

#

SYMTAB_SECTION=".section symtab.data, \"a\", $(ATSIGN)progbits;"

## Setup kernel configuration

#

ifeq ($(CONFIG_DEBUG),y)

	DEFS += -DCONFIG_DEBUG

endif

ifeq ($(CONFIG_EDEBUG),y)

	DEFS += -DCONFIG_EDEBUG

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_TSB),y)

	DEFS += -DCONFIG_TSB

endif

ifeq ($(CONFIG_Z8530),y)

	DEFS += -DCONFIG_Z8530

endif

ifeq ($(CONFIG_NS16550),y)

	DEFS += -DCONFIG_NS16550

endif

ifeq ($(CONFIG_VIRT_IDX_DCACHE),y)

	DEFS += -DCONFIG_VIRT_IDX_DCACHE

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),ia32xen)

		DEFS += -DCONFIG_VESA_WIDTH=$(CONFIG_VESA_WIDTH)

		DEFS += -DCONFIG_VESA_HEIGHT=$(CONFIG_VESA_HEIGHT)

		DEFS += -DCONFIG_VESA_BPP=$(CONFIG_VESA_BPP)

	endif

endif

## Simple detection for the type of the host system

#

HOST = $(shell uname)

## On Solaris, some utilities have slightly different names

#

ifeq ($(HOST),SunOS)

	BINUTILS_PREFIX = "g"

else

	BINUTILS_PREFIX = ""

endif

## Toolchain configuration

#

ifeq ($(COMPILER),gcc_native)

	CC = gcc

	GCC = gcc

	AS = $(BINUTILS_PREFIX)as

	LD = $(BINUTILS_PREFIX)ld

	OBJCOPY = $(BINUTILS_PREFIX)objcopy

	OBJDUMP = $(BINUTILS_PREFIX)objdump

	LIBDIR = /usr/lib

	CFLAGS = $(GCC_CFLAGS)

endif

ifeq ($(COMPILER),icc_native)

	CC = icc

	GCC = gcc

	AS = as

	LD = ld

	OBJCOPY = objcopy

	OBJDUMP = objdump

	LIBDIR = /usr/lib

	CFLAGS = $(ICC_CFLAGS)

endif

ifeq ($(COMPILER),suncc_native)

	CC = suncc

	GCC = gcc

	AS = $(BINUTILS_PREFIX)as

	LD = $(BINUTILS_PREFIX)ld

	OBJCOPY = $(BINUTILS_PREFIX)objcopy

	OBJDUMP = $(BINUTILS_PREFIX)objdump

	LIBDIR = /usr/lib

	CFLAGS = $(SUNCC_CFLAGS)

endif

ifeq ($(COMPILER),gcc_cross)

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

	GCC = $(CC)

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

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

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

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

	LIBDIR = $(TOOLCHAIN_DIR)/lib

	CFLAGS = $(GCC_CFLAGS)

endif

## Generic kernel sources

#

GENERIC_SOURCES = \

	generic/src/adt/avl.c \

	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/cmd.c \

	generic/src/cpu/cpu.c \

	generic/src/ddi/ddi.c \

	generic/src/ddi/irq.c \

	generic/src/ddi/device.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/main/shutdown.c \

	generic/src/proc/scheduler.c \

	generic/src/proc/thread.c \

	generic/src/proc/task.c \

	generic/src/proc/the.c \

	generic/src/proc/tasklet.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/lib/rd.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/smp/smp.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

#

ifeq ($(CONFIG_TEST),y)

	DEFS += -DCONFIG_TEST

	CFLAGS += -Itest/

	GENERIC_SOURCES += \

		test/test.c \

		test/atomic/atomic1.c \

		test/btree/btree1.c \

		test/avltree/avltree1.c \

		test/debug/mips1.c \

		test/fault/fault1.c \

		test/fpu/fpu1.c \

		test/fpu/sse1.c \

		test/fpu/mips2.c \

		test/mm/falloc1.c \

		test/mm/falloc2.c \

		test/mm/mapping1.c \

		test/mm/slab1.c \

		test/mm/slab2.c \

		test/mm/purge1.c \

		test/synch/rwlock1.c \

		test/synch/rwlock2.c \

		test/synch/rwlock3.c \

		test/synch/rwlock4.c \

		test/synch/rwlock5.c \

		test/synch/semaphore1.c \

		test/synch/semaphore2.c \

		test/print/print1.c \

		test/thread/thread1.c \

		test/sysinfo/sysinfo1.c

endif

## Experimental features

#

ifeq ($(CONFIG_EXPERIMENTAL),y)

	GENERIC_SOURCES += generic/src/lib/objc_ext.c \

		generic/src/lib/objc.c

	EXTRA_OBJECTS = $(LIBDIR)/libobjc.a

	EXTRA_FLAGS += -x objective-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

	$(GCC) $(DEFS) $(GCC_CFLAGS) -D__ASM__ -D__LINKER__ -E -x c $< | grep -v "^\#" > $@

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

	echo $(SYMTAB_SECTION) | $(AS) $(AFLAGS) -o generic/src/debug/empty_map.o

	$(LD) -T arch/$(ARCH)/_link.ld $(LFLAGS) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_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

	echo $(SYMTAB_SECTION)" .incbin \"$@\"" | $(AS) $(AFLAGS) -o generic/src/debug/sizeok_map.o

	$(LD) -T arch/$(ARCH)/_link.ld $(LFLAGS) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_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

	echo $(SYMTAB_SECTION)" .incbin \"$<\"" | $(AS) $(AFLAGS) -o $@ 

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) $(EXTRA_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

	$(GCC) $(DEFS) $(GCC_CFLAGS) -D__ASM__ -c $< -o $@

%.o: %.s

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

%.o: %.c

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