Makefile

# Copyright (c) 2019-2026 Praveen Vaddadi. Apache-2.0 License.
CC       ?= gcc
CFLAGS    = -std=gnu11 -O3 -Wall -pthread -fno-omit-frame-pointer
LDLIBS    = -ldl -lm
TIMEOUT  ?= 120s

BUILD_DIR = build/$(notdir $(CC))
LIB       = $(BUILD_DIR)/libcactus.so
TESTS     = fib nqueens matmul quicksort
TEST_BINS = $(addprefix $(BUILD_DIR)/,$(TESTS))

ARGS_fib       = 30
ARGS_nqueens   = 11
ARGS_matmul    = 64
ARGS_quicksort = 10000000

.PHONY: all lib test clean

all: lib $(TEST_BINS)

lib: $(LIB)

test: $(addprefix run-,$(TESTS))

$(BUILD_DIR):
	mkdir -p $@

$(LIB): cactus.c cactus.h | $(BUILD_DIR)
	$(CC) $(CFLAGS) -fPIC -shared $< $(LDLIBS) -o $@

$(BUILD_DIR)/%: tests/%.c tests/test.h $(LIB)
	$(CC) $(CFLAGS) -I. $< -L$(BUILD_DIR) -lcactus $(LDLIBS) -Wl,-rpath,'$$ORIGIN' -o $@

run-%: $(BUILD_DIR)/%
	@timeout $(TIMEOUT) $< $(ARGS_$*)

clean:
	rm -rf build