CC := gcc
CFLAGS := -O3 -march=native -mtune=native -flto -fomit-frame-pointer -DNDEBUG -Wall -Wextra -std=c11 -D_GNU_SOURCE -D_POSIX_C_SOURCE=200809L
LDFLAGS := -pthread -lcrypto -lm -flto
PGO_DIR := .pgo

SHA256_BACKEND_OBJS := sha256/sha256_backend.o
HAS_ARM_CRYPTO := $(shell echo | $(CC) $(CFLAGS) -dM -E - 2>/dev/null | grep -c __ARM_FEATURE_CRYPTO)
ifeq ($(shell uname -m),aarch64)
ifneq ($(HAS_ARM_CRYPTO),0)
SHA256_BACKEND_OBJS += sha256/sha256d80_4way_aarch64.o
endif
endif

COMMON_OBJS := config.o utils.o json.o rpc.o types.o block_builder.o miner.o mining_loop.o $(SHA256_BACKEND_OBJS)
BENCH_BIN := bench_hash
TEST_SHA_BIN := test_sha256_backend
TEST_MINER_BIN := test_miner_regression

.PHONY: all clean bench bench-5x test pgo-gen pgo-use pgo-clean

all: miner launcher

miner: main.o $(COMMON_OBJS)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

launcher: launcher.o $(COMMON_OBJS)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

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

clean:
	rm -f *.o sha256/*.o bench/*.o tests/*.o miner launcher $(BENCH_BIN) $(TEST_SHA_BIN) $(TEST_MINER_BIN)

bench: $(BENCH_BIN)

$(BENCH_BIN): bench/bench_hash.o $(SHA256_BACKEND_OBJS)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

bench-5x: $(BENCH_BIN)
	@i=1; while [ $$i -le 5 ]; do \
		echo "Run $$i/5"; \
		./$(BENCH_BIN) 60; \
		i=$$((i+1)); \
	done

$(TEST_SHA_BIN): tests/test_sha256_backend.o $(SHA256_BACKEND_OBJS) utils.o
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

$(TEST_MINER_BIN): tests/test_miner_regression.o miner.o $(SHA256_BACKEND_OBJS) utils.o
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

test: $(TEST_SHA_BIN) $(TEST_MINER_BIN)
	./$(TEST_SHA_BIN)
	./$(TEST_MINER_BIN)

pgo-gen: CFLAGS += -fprofile-generate=$(PGO_DIR)
pgo-gen: LDFLAGS += -fprofile-generate=$(PGO_DIR)
pgo-gen: clean all
	@echo "Profilazione build pronta."
	@echo "Esegui il tuo workload manualmente, poi lancia: make pgo-use"

pgo-use: CFLAGS += -fprofile-use=$(PGO_DIR) -fprofile-correction
pgo-use: LDFLAGS += -fprofile-use=$(PGO_DIR)
pgo-use: clean all

pgo-clean:
	rm -rf $(PGO_DIR)