# Copyright (c) 2010 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder.  You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Copyright (c) 2005-2006 The Regents of The University of Michigan
# 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;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS 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
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#
# Authors: Nathan Binkert
#          Ali Saidi

### If we are not compiling on an arm v8, we must use cross tools ###
ifneq ($(shell uname -m), aarch64)
CROSS_COMPILE?=aarch64-linux-gnu-
endif
CC=$(CROSS_COMPILE)gcc
AS=$(CROSS_COMPILE)as
LD=$(CROSS_COMPILE)ld
AR=$(CROSS_COMPILE)ar

JC=javac
JH=javah
JR=jar
### JDK_PATH must be set to build gem5OpJni
#JDK_PATH=/path/to/jdk/version_number

CFLAGS=-O2 -I $(JDK_PATH)/include/ -I $(JDK_PATH)/include/linux \
       -I$(PWD)/../../include -march=armv8-a
LDFLAGS=-static -L. -lm5

LIB_OBJS=m5op_arm_A64.o m5_mmap.o
OBJS=m5.o
JNI_OBJS=m5op_arm_A64.o jni_gem5Op.o
LUA_OBJS=lua_gem5Op.o m5op_arm_A64.o m5_mmap.o

### Need to install lua5.1 library to compile gem5OpLua.so
LUA_HEADER_INCLUDE=$(shell pkg-config --cflags lua51) -I/usr/include/x86_64-linux-gnu

all: libm5.a m5

%.o: %.S
	$(CC) $(CFLAGS) -o $@ -c $<

%.o: %.c
	$(CC)  $(CFLAGS) -o $@ -c $<

m5: $(OBJS) libm5.a
	$(CC) -o $@ $^ $(LDFLAGS)

libm5.a: $(LIB_OBJS)
	$(AR) rcs $@ $^

gem5OpJni: gem5OpJni.jar $(JNI_OBJS)
	$(CC) --shared -o lib$@.so $(JNI_OBJS)

gem5OpJni.jar:
	$(JC) jni/gem5Op.java; \
	$(JH) jni.gem5Op; \
	$(JR) cvf $@ jni/*.class

lua_gem5Op.o: lua_gem5Op.c
	$(CC) $(CFLAGS) $(LUA_HEADER_INCLUDE) -o $@ -c $<

gem5OpLua.so: $(LUA_OBJS)
	$(CC) $(CFLAGS) $^ -o $@ -shared

clean:
	rm -f *.o m5 libgem5OpJni.so gem5OpJni.jar jni/*.class libm5.a gem5OpLua.so