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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.

#

## Make some default assumptions

#

ifndef ARCH

	ARCH = ia32

endif

## Common compiler flags

#

DEFS = -DARCH=$(ARCH)

CFLAGS = -fno-builtin -fomit-frame-pointer -Werror-implicit-function-declaration -Wmissing-prototypes -Werror -O3 -nostdlib -nostdinc -Iinclude

LFLAGS = -M

AFLAGS =

## Setup platform configuration

#

include arch/$(ARCH)/Makefile.inc

## Toolchain configuration

#

ifeq ($(COMPILER),native)

	CC = gcc

	AS = as

	LD = ld

	AR = ar

	OBJCOPY = objcopy

	OBJDUMP = objdump

else

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

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

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

	AR = $(TOOLCHAIN_DIR)/$(TARGET)-ar

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

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

endif

## Sources

#

GENERIC_SOURCES = \

	generic/libc.c

ARCH_SOURCES = \

	arch/$(ARCH)/entry.s \

	arch/$(ARCH)/syscall.c

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

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

.PHONY: all clean depend

all: libc.a

-include Makefile.depend

clean:

	-rm -f libc.a Makefile.depend

	find generic/ arch/$(ARCH)/ -name '*.o' -follow -exec rm \{\} \;

depend:

	$(CC) $(DEFS) $(CFLAGS) -M $(ARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend

libc.a: depend $(ARCH_OBJECTS) $(GENERIC_OBJECTS)

	$(AR) rc libc.a $(ARCH_OBJECTS) $(GENERIC_OBJECTS)

%.o: %.S

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

%.o: %.s

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

%.o: %.c

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