CC=gcc
CFLAGS=-std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_SVID_SOURCE -D_POSIX_C_SOURCE=200809L -g

.PHONY: all clean
all: default
default: bin main intercept.so main_intercept #test_kernel.ko

bin:
	mkdir -p bin/

bin/main.o: src/main.c
	$(CC) -c -o $@ $^ $(CFLAGS)

bin/intercept_preload.o: src/intercept.c
	$(CC) -fPIC -c -o $@ $^ $(CFLAGS) -DINTERCEPT_PRELOAD

intercept.so: bin/intercept_preload.o
	$(CC) -shared -o $@ $^ $(CFLAGS) -lc -ldl

test_kernel.ko: src/test_kernel.c
	$(CC) -D__KERNEL__ -DMODULE -I/usr/src/linux/include -o $@ $^

main: bin/main.o
	$(CC) -o $@ $^ $(CFLAGS) -lc

main_intercept: bin/main.o src/intercept.c
	$(CC) -o $@ $^ $(CFLAGS) -lc -Wl,--wrap=malloc,--wrap=free,--wrap=calloc,--wrap=realloc,--wrap=reallocarray,--wrap=getopt

clean:
	rm -rf main main_wrapped bin/* *.so *.ko *.o


#ifneq ($(KERNELRELEASE),)
#	# call from kernel build system
#	lifo-objs := main.o
#	obj-m   := lifo.o
#else
#	KERNELDIR ?= /lib/modules/$(shell uname -r)/build
#	PWD       := $(shell pwd)
#modules:
#	echo $(MAKE) -C $(KERNELDIR) M=$(PWD) LDDINC=$(PWD)/../include modules
#	$(MAKE) -C $(KERNELDIR) M=$(PWD) LDDINC=$(PWD)/../include modules
#endif
#
#depend .depend dep:
#	$(CC) $(CFLAGS) -M *.c > .depend
#
#ifeq (.depend,$(wildcard .depend))
#	include .depend
#endif