Initial version

code/Makefile.common

@@ -0,0 +1,145 @@
+# This is part of a GNU Makefile, included by the Makefiles in
+# each of the subdirectories.  
+#
+# This file includes all of the baseline code provided by Nachos.
+# Whenever you add a .h or .cc file, put it in the appropriate 
+# _H,_C, or _O list.
+#
+# The dependency graph between assignments is:
+#   1. THREADS before everything else
+#   2. USERPROG must come before VM
+#   3. USERPROG can come before or after FILESYS, but if USERPROG comes 
+#	before (as in this distribution), then it must define FILESYS_STUB
+#
+#   Other than that, you have complete flexibility.
+#
+
+# You might want to play with the CFLAGS, but if you use -O it may
+# break the thread system.  You might want to use -fno-inline if
+# you need to call some inline functions from the debugger.
+
+# Copyright (c) 1992 The Regents of the University of California.
+# All rights reserved.  See copyright.h for copyright notice and limitation 
+# of liability and disclaimer of warranty provisions.
+
+###########################################################################
+# RN: Sets of objects file to be linked for each nachos flavor. This
+# is the only section you may need to modify when adding files in nachos.
+#
+THREAD_O	:=	main.o list.o scheduler.o synch.o synchlist.o \
+			system.o thread.o utility.o threadtest.o interrupt.o \
+			stats.o sysdep.o timer.o
+
+USERPROG_O	:=	addrspace.o bitmap.o exception.o progtest.o console.o \
+			machine.o mipssim.o translate.o
+
+VM_O		:=
+
+FILESYS_O	:=	directory.o filehdr.o filesys.o fstest.o openfile.o \
+			synchdisk.o disk.o
+
+NETWORK_O	:=	nettest.o post.o network.o
+#
+###########################################################################
+
+S_OFILES	:=	switch.o
+
+CFLAGS = -g -Wall -Wextra -Wshadow $(INCPATH) $(DEFINES) $(HOST) -DCHANGED 
+LDFLAGS = -g
+ASFLAGS = -g
+
+# These definitions may change as the software is updated.
+# Some of them are also system dependent
+CPP= gcc -E -P
+CC = g++
+LD = g++
+AS = gcc -c
+
+PROGRAM		:=	nachos
+
+MAKEFILES	:=	Makefile \
+			../Makefile.common \
+			../Makefile.dep
+
+OFILES		:=	$(strip $(C_OFILES) $(S_OFILES))
+
+# RN: Dependency files start with a '.' to avoid annoying completion
+# confusion under shell, emacs, etc.
+
+C_DFILES	:=	$(patsubst %.o,.%.d,$(C_OFILES))
+S_DFILES	:=	$(patsubst %.o,.%.d,$(S_OFILES))
+DFILES		:=	$(strip $(C_DFILES) $(S_DFILES))
+
+# RN: Hummm... There's a lot to tell about the story of the two
+# following lines. Essentially, it allows 'make' to implicitely search
+# for source/header files in various directories. The original Nachos
+# Makefile was not using this 'vpath' feature, although it was using
+# the aforementioned implicit search policy! The problem came from
+# the rule:
+#	$(C_OFILES): %.o:
+# 		$(CC) blabla...
+# which is correct if .o files have no extra dependency rules. In this
+# case, 'make' finds the associated .cc file in the directories it
+# knows of (because they were listed in some macros!). However, if we add
+# a rule such as
+# 	$(C_OFILES): toto
+# then 'make' tries to compile 'toto' each time it rebuilds a ".o"
+# file. As a result, the former rule was modified as follows
+# 	$(C_OFILES): %.o: %.cc
+# As you may guess, it did'nt work because 'make' was no longer using
+# its @#!^# implicit policy in this case. Crazy, isn't it? Fortunately,
+# there's a GNU extension that requires 'make' to use a "search path" for
+# files that match a given pattern: this is the vpath directive...
+# Well, I guess you should stop wondering why these two lines are here: you'd
+# better concentrate on your exercise! ;-)
+
+vpath %.cc ../machine:../threads:../userprog:../filesys:../network:../vm:../
+vpath %.S  ../machine:../threads:../userprog:../filesys:../network:../vm:../
+
+# Must be the first rule
+.PHONY: default
+default: $(PROGRAM)
+
+$(OFILES): $(MAKEFILES)
+
+$(PROGRAM): $(OFILES)
+	$(LD) $(OFILES) $(LDFLAGS) -o $(PROGRAM)
+
+$(C_OFILES): %.o: %.cc
+	$(CC) $(CFLAGS) -c $< -o $@
+
+switch.o: ../threads/switch.S
+	$(CPP) $(INCPATH) $(HOST) ../threads/switch.S > swtch.s
+	$(AS) $(ASFLAGS) -o switch.o swtch.s
+	rm swtch.s
+
+# RN: Rules to generate dependency files. We can no longer rely on a
+# single '.depend' file if we want to avoid a global recompilation each
+# time a file is modified! Thus, each %.cc file is associated with its own
+# .%.d dependency file...
+
+.PHONY: depend
+depend: $(DFILES)
+
+$(DFILES): $(MAKEFILES)
+
+$(C_DFILES): .%.d: %.cc
+	$(CC) $(CFLAGS) -MM $< | \
+		sed -e 's|\(.*\)\.o:|.\1.d \1.o:|g' > $@
+
+$(S_DFILES): .%.d: %.S
+	$(CC) $(CFLAGS) -MM $< | \
+		sed -e 's|\(.*\)\.o:|.\1.d \1.o:|g' > $@
+
+ifneq ($(MAKECMDGOALS),clean)
+-include $(DFILES)
+endif
+
+# Cleaning rules
+.PHONY: clean
+clean:
+	rm -f core nachos DISK *.o *.s .*.d coff2noff out disassemble
+
+.PHONY: distclean
+distclean: clean
+	rm -f *\~ \#*\#