# Directories
OBJDIR=obj
BINDIR=bin
SRCDIR=src
INCDIR=include
LIBDIR=lib
LOGDIR=logs
LOCALDIR=$(HOME)/local
PAPIHIGHLEVELLIBDIR=lib
PAPIHIGHLEVELINCDIR=include

# Compilation flags
# I know -finline-functions and -finline-functions-called-once are enabled by
# -O3 but I did this in case gcc behaviour change one day
CFLAGS=-g -O3 -finline-functions -finline-functions-called-once -Wall -Werror
LDFLAGS=-L$(LIBDIR) -L$(LOCALDIR)/$(PAPIHIGHLEVELLIBDIR) -Wl,-rpath-link,$(HOME)/local/lib -lpthread -lpapihighlevel

# Executables
CC=gcc

# Files
BINNAMES=asm_cache_comm c_cache_comm pipe_comm shared_mem_comm shared_mem_opt_comm jikes_barrier_comm fake_comm
BINS=$(patsubst %, $(BINDIR)/%, $(BINNAMES))
MAIN_OBJS=main.o common.o
COMMON_LIB_OBJS=common.o

.PHONY: all tidy clean distclean symlink
.SECONDARY: 
.SUFFIXES: .c .o

default: $(BINS)

ifneq (,$(findstring $(MAKECMDGOALS),$(BINS)))
BASE_TARGET=$(patsubst $(BINDIR)/%_comm,%,$(MAKECMDGOALS))

# Compilation of binary
$(BINDIR)/$(BASE_TARGET)_comm: $(patsubst %,$(OBJDIR)/$(BASE_TARGET)_%,$(MAIN_OBJS)) $(LIBDIR)/lib$(BASE_TARGET).a
	if [ ! -d $(BINDIR) ] ; then mkdir $(BINDIR) ; fi
	$(CC) -o $@ $^ $(LDFLAGS)

# Compilation of library
$(LIBDIR)/lib$(BASE_TARGET).a: $(OBJDIR)/$(BASE_TARGET).o $(patsubst %,$(OBJDIR)/$(BASE_TARGET)_%,$(COMMON_LIB_OBJS))
	if [ ! -d $(LIBDIR) ] ; then mkdir $(LIBDIR) ; fi
	$(AR) -rcus $@ $^

# Compile common source files
$(OBJDIR)/$(BASE_TARGET)_%.o: $(SRCDIR)/%.c symlink
	if [ ! -d $(OBJDIR) ] ; then mkdir $(OBJDIR) ; fi
	$(CC) $(CFLAGS) -I$(INCDIR) -I$(LOCALDIR)/$(PAPIHIGHLEVELINCDIR) -c $< -o $@
endif

# Compile non common source files
$(OBJDIR)/%.o: $(SRCDIR)/%.c symlink
	if [ ! -d $(OBJDIR) ] ; then mkdir $(OBJDIR) ; fi
	$(CC) $(CFLAGS) -I$(INCDIR) -c $< -o $@

symlink:
	ln -sfT $(BASE_TARGET)_comm.h $(INCDIR)/specific_comm.h

#.%.d: %.c
#	gcc $(CFLAGS) -MM $^ | sed -e 's/\([^:]*\):\(.*\)/\1 $@: \2 Makefile/' > $@

tidy:
	rm -f $(SRCDIR)/*~ \#*

clean:
	rm -f $(INCDIR)/specific_comm.h
	rm -rf $(OBJDIR)

logclean:
	rm -rf $(LOGDIR)

distclean: clean
	rm -rf $(BINDIR) $(LIBDIR)

#ifneq ($(MAKECMDGOALS),tidy)
#ifneq ($(MAKECMDGOALS),clean)
#ifneq ($(MAKECMDGOALS),distclean)
# If the rules called is not a phony rules, then include the %.d makefile
# corresponding to all objects
#include $(patsubst %.o, .%.d, $(OBJ))
#endif
#endif
#endif