Makefile

# Disable echoing of commands
MAKEFLAGS += --silent

export CCFLAGS := $(CCFLAGS) -Wall -Wextra -pedantic -Wno-unused-parameter -fno-omit-frame-pointer -g

source := $(shell find * -type f -name "*.c" -not -path "build/*")
headers := $(shell find * -type f -name "*.h" -not -path "build/*")

.PHONY: build library format clean

build: library examples

library: build/lib/perf/libperf.a lib/perf.h lib/utilities.h
	mkdir -p build/include/perf/
	cp lib/perf.h lib/utilities.h build/include/perf

examples: build/examples/full build/examples/minimal build/examples/pi

build/lib/perf/libperf.a: build/perf.o build/utilities.o
	mkdir -p $(dir $@)
	$(AR) rcs $@ $^

build/perf.o: lib/perf.c lib/perf.h
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -c -o $@ $<

build/utilities.o: lib/utilities.c lib/utilities.h
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -c -o $@ $<

build/examples/full: library examples/full/main.c examples/full/harness.c examples/full/harness.h
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -o $@ examples/full/main.c examples/full/harness.c -I build/include -L build/lib/perf -lperf -lcap

build/examples/minimal: library examples/minimal/main.c
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -o $@ examples/minimal/main.c -I build/include -L build/lib/perf -lperf -lcap

build/examples/pi: library examples/pi/main.c
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -o $@ examples/pi/main.c  examples/pi/harness.c -I build/include -L build/lib/perf -lperf -lcap -lm

# Create the compilation database for llvm tools
compile_commands.json: Makefile
	# compiledb is installed using: pip install compiledb
	compiledb -n make

# Format code according to .clang-format
format: compile_commands.json
	clang-format -style=file -i $(source) $(headers)

clean:
	rm -rf build &>/dev/null || true