# SPDX-License-Identifier: MIT

CC = gcc
CFLAGS = -Wall -Wextra -Werror -Wno-unused-parameter 
CFLAGS += -Wno-unused-variable -Wno-unused-function 
CFLAGS += -Wno-unused-but-set-variable -Wno-unused-value -Wno-unused-label
CFLAGS += -Wno-unused-result -Wno-unused-const-variable

ifneq ($(DEBUG), 1)
CFLAGS += -fno-exceptions -fno-asynchronous-unwind-tables -fno-ident
CFLAGS += -fno-unwind-tables -fno-stack-protector -fno-plt -fno-pic
CFLAGS += -O3 -std=c99 -march=native -mtune=native -fomit-frame-pointer
CFLAGS += -fshort-enums
else
CFLAGS += -g -O0 -std=c99 -march=native -mtune=native
CFLAGS += -DDEBUG
endif

# Include debug flags
CFLAGS += -g -O0 -std=c99 -march=native -mtune=native

C_SOURCES = $(wildcard *.c)
C_HEADERS = $(wildcard *.h)
OBJECTS = $(C_SOURCES:.c=.o)
ASMS = $(C_SOURCES:.c=.s)

all: $(OBJECTS)

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

%.s: %.c $(C_HEADERS)
	@echo "CC $<"
	@$(CC) $(CFLAGS) -S -masm=intel $<

driver: $(OBJECTS)
	@$(CC) $(CFLAGS) $^ -o $@

run: driver
	@./driver

lib: $(OBJECTS)
	@ar rcs librbuf.a ringbuf.o

dylib: $(OBJECTS)
	@$(CC) $(CFLAGS) -fPIC -shared -o librbuf.so ringbuf.o

install:
	@cp librbuf.a /usr/local/lib
	@cp ringbuf.h /usr/local/include

clean:
	rm -f $(OBJECTS) $(ASMS) driver librbuf.a librbuf.so

asm: $(ASMS) $(OBJECTS)
	wc -l $(ASMS)
	size $(OBJECTS)

format:
	clang-format -i $(C_SOURCES) $(C_HEADERS)

.PHONY: all clean format asm