lsup_rdf/Makefile

# NOTE: only tested in GNU/Linux.

## Binary dependencies.

CC = gcc
AR = ar
LEXER = re2c
PARSER = lemon


## Paths.

PREFIX ?= /usr/local
bindir = $(PREFIX)/bin
libdir = $(PREFIX)/lib
includedir = $(PREFIX)/include/lsup
MDB_DIR = ext/openldap/libraries/liblmdb
XXHASH_DIR = ext/xxHash
CALLGRIND_DUMP = /tmp/lsup_callgrind.%p.out

INCLUDE_BASE = . -Iinclude -I$(MDB_DIR) -I$(XXHASH_DIR) \
	-Iext/tpl/src -Iext/uthash/src -Iext/log/src
INCLUDE = -I$(INCLUDE_BASE)
CFLAGS += -Wall -fPIC -MMD -DLOG_USE_COLOR $(INCLUDE)
DBG_CFLAGS = -Itest -O0 -g3 -DDEBUG
# NOTE: -luuid is a Linux system library. Other OS's might need a different
# link or a non-system library built.
LDFLAGS = -L. -L$(libdir) -llmdb -lxxhash -luuid

CODEC_DIR = src/codec
CODEC_SRC = $(wildcard src/codec/*_grammar.c) \
	  		$(wildcard src/codec/*_parser.c)
CODEC_OBJ = $(CODEC_SRC:.c=.o)
CODEC_DBG_OBJ = $(CODEC_SRC:.c=_dbg.o)

# External sources compiled in core object.
EXT_SRC = $(wildcard ext/log/src/*.c) \
	  	  $(wildcard ext/tpl/src/*.c)

# External headers of libraries compiled in core.
EXT_H = $(wildcard ext/log/src/*.h) \
	  	$(wildcard ext/tpl/src/*.h) \
	  	$(wildcard ext/uthash/src/*.h)

LSUP_SRC = $(wildcard src/*.c)
SRC = $(EXT_SRC) $(LSUP_SRC)
TEST_SRC = $(wildcard test/*.c) test.c

OBJ = $(LSUP_SRC:.c=.o) $(CODEC_OBJ)
EXT_OBJ = $(EXT_SRC:.c=.o) 
DBG_OBJ = $(EXT_OBJ) $(CODEC_DBG_OBJ) $(LSUP_SRC:.c=_dbg.o)

DEPLIBS = libxxhash liblmdb
LIBS = liblsuprdf.a liblsuprdf.so
DBG_LIBS = liblsuprdf_dbg.a liblsuprdf_dbg.so

# For visual dep graph.
DEPS := $(shell echo "${INCLUDE_BASE}" | sed -e 's/ -I/,/g')
DOCS = docs


## Environment.

export LD_LIBRARY_PATH = $(libdir):.


## Rules.

.DEFAULT_GOAL := lib

# Extract all rule comment into a help message.
.PHONY: help
help:
	@echo "Command overview:"; echo; \
		grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) \
		| sed -n 's/^\(.*\): \(.*\)##\(.*\)/\1::\3/p' \
		| column -t  -s '::'
	

lib: $(DEPLIBS) $(LIBS) ## Compile main library (static and dynamic linking).


debug: $(DEPLIBS) $(DBG_LIBS) ## Compile main library with debug symbols.

# Static library.
liblsuprdf.a: $(OBJ)
	$(AR) rs $@ $^

# Dynamic library.
liblsuprdf.so: $(OBJ)
	$(CC) -shared $(LDFLAGS) -o $@ $^

# Static debug library.
liblsuprdf_dbg.a: $(DBG_OBJ)
	$(AR) rs $@ $^

# Dynamic debug library.
liblsuprdf_dbg.so: $(DBG_OBJ)
	$(CC) -shared $(LDFLAGS) -o $@ $^

# Debug objects.
%_dbg.o: %.c
	$(CC) $(CFLAGS) $(DBG_CFLAGS) $(LDFLAGS) -c $^ -o $@

# Codecs.
$(CODEC_OBJ): $(CODEC_SRC)

# Parser C sources.
%_parser.c: %_lexer.re %_grammar.c
	$(LEXER) $< -o $@ -T --case-ranges

# Parser generators.
%_grammar.c: %_grammar.y
	$(PARSER) $< -q -m -T$(CODEC_DIR)/lempar.c -d$(CODEC_DIR)

# Ext libraries.

.PHONY: libxxhash
libxxhash:
	$(MAKE) -C $(XXHASH_DIR)
		
.PHONY: liblmdb
liblmdb:
	$(MAKE) -C $(MDB_DIR)


install: lib ## Install library and dependencies to $PREFIX. May require sudo.
	cd $(MDB_DIR); PREFIX=$(PREFIX) make install
	cd $(XXHASH_DIR); PREFIX=$(PREFIX) make install
	mkdir -p $(DESTDIR)$(libdir)
	mkdir -p $(DESTDIR)$(includedir)
	cp liblsuprdf.{a,so} $(DESTDIR)$(libdir) && \
		cp include/*.h $(EXT_H) $(DESTDIR)$(includedir)


debug_install: install debug ## Install standard and debug libraries.
	cp liblsuprdf_dbg.{a,so} $(DESTDIR)$(libdir)
	

.PHONY: clean ## Clean up artifacts.
clean:
	rm -rf src/*.[aod] ./*[aod] src/codec/*[aod]


.PHONY: deepclean ## Clean up artifacts in external libraries as well.
deepclean: clean
	cd $(MDB_DIR); make clean
	cd $(XXHASH_DIR); make clean


.PHONY: uninstall ## Uninstall library (not the dependencies).
uninstall:
	rm -f $(DESTDIR)$(libdir)/liblsuprdf*
	rm -rf $(DESTDIR)$(includedir)
	rm -f bin/test*

# For testing, use debug symbols.
bin/test: debug $(TEST_SRC)
	$(CC) $(CFLAGS) $(DBG_CFLAGS) -Itest $(LDFLAGS) -llsuprdf_dbg \
		test.c -o bin/test


.PHONY: test
test: bin/test ## Run a test suite.
	exec bin/test


.PHONY: gdb_test
gdb_test: bin/test ## Run a test suite within gdb.
	exec gdb bin/test

lint:
	splint \
		$(INCLUDE) -Itest \
		-DUINT_MAX=0xFFFFFFFFUL \
		-nullpass \
		-posix-lib \
		test.c


.PHONY: memcheck
memcheck:
	valgrind \
	--leak-check=full --show-leak-kinds=all --track-origins=yes \
	--log-file=/tmp/lsup_valgrind.log \
	./bin/test
	echo "Memcheck complete. Valgrind log is at /tmp/lsup_valgrind.log"


memtest: bin/test memcheck ## Run a test suite using Valgrind. Output to separate file.


# Profiling application.
bin/profile: debug $(TEST_SRC)
	$(CC) $(CFLAGS) -g -DTESTING $(LDFLAGS) -lliblsuprdf_dbg \
		profile.c -o bin/profile


.PHONY: profile
profile: bin/profile ## Run a profiling session. Output can be inspected with KCachegrind.
	exec valgrind --tool=callgrind --callgrind-out-file="$(CALLGRIND_DUMP)" \
		bin/profile 10000 && \
		echo "Profile dump written at $(CALLGRIND_DUMP)"


.PHONY: pytest
pytest: ## Run a test suite for the Python package.
	pip3 install --user . && \
	python3 test/cpython_test.py



# Requires cinclude2dot (https://www.flourish.org/cinclude2dot) and Graphviz.
depgraph: src/* include/* ## Build a visual dependency graph of the code.
	cinclude2dot --merge=module --include=$(DEPS) \
		--exclude='test|ext' >| $(DOCS)/dev/deps.dot
	dot $(DOCS)/dev/deps.dot -Tpdf >| $(DOCS)/dev/deps.pdf