Makefile

.POSIX:
.PHONY: clean check install

SRC = main.c
HEADERS := $(wildcard *.h)

DESTDIR ?= /usr/local/

WITH_ASAN = 0
WITH_LOGS=0
WITH_OPTIMIZE = 0
WITH_DTRACE=1
OS = $(shell uname)
ARCH = $(shell uname -m)

ifeq "$(strip $(OS))" "Darwin"
	ASAN_DIR=$(shell $(CC) -print-search-dirs | awk -F '=' '/libraries/{print $$2}')/lib/darwin/
else ifeq "$(strip $(OS))" "Linux"
	ASAN_DIR=$(shell $(CC) -print-search-dirs | awk -F '=' '/libraries/{split($$2, libs, ":"); printf("%s/lib/linux", libs[1])}')
endif

CFLAGS_COMMON := \
-Wall \
-Wextra \
-Wimplicit-fallthrough \
-Walloca \
-Wparentheses \
-Wignored-qualifiers \
-Wunused-function \
-Wunused \
-Wunused-parameter \
-Wuninitialized \
-Wunreachable-code \
-Wno-missing-field-initializers \
-Wunused-const-variable \
-Wno-dollar-in-identifier-extension \
-g \
-std=c99 \
-march=native \
-fno-omit-frame-pointer \
-fstrict-aliasing \
-fPIC \
-D_POSIX_C_SOURCE=200809L

# If clang: more warnings
ifneq "$(findstring clang,$(shell $(CC) --version))" ""
	CFLAGS_COMMON += \
  -Wunused-member-function \
  -Wloop-analysis \
  -Wkeyword-macro \
  -Wcomma \
  -Wstring-conversion \
  -Wunused-member-function \
  -Wcomma \
  -Wimplicit \
  -Wlogical-op-parentheses \
  -Widiomatic-parentheses \
  -Wheader-hygiene \
  -Wconditional-uninitialized \
  -Wthread-safety \
  -Wmove \
  -Wno-c++98-compat
endif

CFLAGS = $(CFLAGS_COMMON) -DLD='"$(CC)"' -DAS='"$(AS)"'
CFLAGS_STDLIB = $(CFLAGS_COMMON) -fno-stack-protector

ifeq "$(WITH_DTRACE)" "0"
	CFLAGS_STDLIB += -DDTRACE_PROBES_DISABLED
endif

ifeq "$(WITH_ASAN)" "1"
	CFLAGS += -fsanitize=address -DASAN_DIR='"$(ASAN_DIR)"' -DWITH_ASAN=1
	CFLAGS_STDLIB += -shared-libasan
else 
	CFLAGS += -DWITH_ASAN=0
	CFLAGS_STDLIB += -DWITH_ASAN=0
endif
	
ifeq "$(WITH_LOGS)" "1"
	CFLAGS += -DWITH_LOGS=1
else
	CFLAGS += -DWITH_LOGS=0
endif

ifeq "$(WITH_OPTIMIZE)" "0"
	CFLAGS += -O0
	CFLAGS_STDLIB += -O0
else
	CFLAGS += -O2
	CFLAGS_STDLIB += -O2
endif

TESTS_SRC := $(wildcard tests/*.kt)
TESTS_O := $(TESTS_SRC:.kt=.o)
TESTS_ASM := $(TESTS_SRC:.kt=.s)
TESTS_EXE := $(TESTS_SRC:.kt=.exe)

.DEFAULT:
mktc: $(SRC) $(HEADERS) mkt_stdlib.o
	$(CC) $(CFLAGS) $(SRC) -o $@


mkt_stdlib.o: mkt_stdlib.c probes.h
	$(CC) $(CFLAGS_STDLIB) $< -c

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

probes.h: probes.d
ifeq "$(WITH_DTRACE)" "1"
		dtrace -o $@ -h -s $<
endif

%.exe: %.kt mktc
	./mktc $<

check: mktc $(TESTS_EXE) test
	@./test

clean:
	find . -name '*.s' -or -name '*.o' -or -name '*.exe' -type f | xargs $(RM)
	$(RM) mktc
	$(RM) -r ./*.dSYM

install: mktc
	mkdir -p $(DESTDIR)/lib/
	mkdir -p $(DESTDIR)/bin/
	cp mkt_stdlib.o $(DESTDIR)/lib/mkt_stdlib.o
	cp mktc $(DESTDIR)/bin/mktc