#
#  Copyright © 2011-2016 Samuel Lidén Borell <samuel@kodafritt.se>
#
#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"), to deal
#  in the Software without restriction, including without limitation the rights
#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#  copies of the Software, and to permit persons to whom the Software is
#  furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice shall be included in
#  all copies or substantial portions of the Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#  THE SOFTWARE.
#

CFLAGS ?= -O2 -g
CFLAGS += -std=c89 -Wall -Wextra -Wmissing-prototypes -Wswitch-enum -Wcast-align -Wdate-time -Wnested-externs -Wshadow -Wbad-function-cast -Wpointer-arith -Wstrict-prototypes -Wfloat-equal -Wredundant-decls -Wold-style-definition -pedantic -D_FILE_OFFSET_BITS=64

OBJECTS = backend.o backend/ctrans.o backend/minicg.o backend/null.o builtins.o configfile.o constexpr.o context.o display.o filesys.o identifier.o interop.o interop/c_builtin.o main.o misc.o parser.o platform.o string.o tokenizer.o verify.o

UNIT_TEST_OBJECTS = unittest/testmain.o unittest/test_constexpr.o unittest/test_misc.o
UNTESTED_OBJECTS = backend.o backend/ctrans.o backend/minicg.o backend/null.o builtins.o configfile.o context.o display.o filesys.o identifier.o interop.o interop/c_builtin.o parser.o platform.o string.o tokenizer.o verify.o

RUNTESTS = tests/runtests.sh

INSTALL_PROGRAM ?= install
MKDIR_P ?= mkdir -p
CLANG_TIDY ?= clang-tidy

# Default paths
prefix ?= /usr/local
exec_prefix ?= $(prefix)
bindir ?= $(exec_prefix)/bin
datarootdir ?= $(prefix)/share
datadir ?= $(datarootdir)
lrl_includedir ?= $(datadir)/lrl-includes

all: lrlc

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

backend.o: backend.h
backend/ctrans.o: backend.h constexpr.h context.h identifier.h misc.h parser.h platform.h string.h tokenizer.h verify.h
backend/minicg.o: backend.h context.h identifier.h misc.h parser.h platform.h string.h tokenizer.h verify.h
backend/null.o: backend.h
builtins.o: builtins.h identifier.h misc.h parser.h tokenizer.h
configfile.o: configfile.h identifier.h misc.h parser.h platform.h
constexpr.o: builtins.h constexpr.h context.h context_errors.h context_private.h identifier.h misc.h parser.h tokenizer.h
context.o: context.h context_errors.h context_private.h interop.h misc.h tokenizer.h verify.h
display.o: builtins.h context.h display.h identifier.h misc.h parser.h tokenizer.h
filesys.o: context.h display.h filesys.h identifier.h misc.h parser.h tokenizer.h
identifier.o: builtins.h context.h context_errors.h context_private.h filesys.h identifier.h misc.h tokenizer.h
interop.o: interop.h
interop/c_builtin.o: configfile.h context.h context_private.h interop.h misc.h parser.h platform.h verify.h
main.o: backend.h configfile.h context.h context_private.h display.h filesys.h identifier.h misc.h parser.h platform.h tokenizer.h verify.h
misc.o: context.h misc.h
parser.o: context.h context_errors.h context_private.h identifier.h misc.h parser.h tokenizer.h
platform.o: misc.h platform.h
string.o: context.h context_errors.h string.h
tokenizer.o: context.h context_errors.h context_private.h misc.h string.h tokenizer.h
verify.o: builtins.h constexpr.h context.h context_errors.h context_private.h identifier.h interop.h misc.h parser.h tokenizer.h verify.h


lrlc: $(OBJECTS)
	$(CC) $(CFLAGS) $(OBJECTS) -o $@


check: check-tokenizer check-parser check-verifier check-backend check-interop check-runtime check-unit

check-tokenizer: lrlc
	$(RUNTESTS) tokenizer

check-parser: lrlc
	$(RUNTESTS) parser

check-verifier: lrlc
	$(RUNTESTS) verifier

check-backend: lrlc
	$(RUNTESTS) backend

check-interop: lrlc
	$(RUNTESTS) interop
	$(RUNTESTS) interop/c

check-runtime: lrlc
	$(RUNTESTS) runtime

unittest/testmain.o: unittest/alltests.h unittest/unittest.h
unittest/test_constexpr.o: constexpr.o
unittest/test_misc.o: misc.o
unittest/unittest: $(UNIT_TEST_OBJECTS) $(UNTESTED_OBJECTS)
	$(CC) $(CFLAGS) $(UNIT_TEST_OBJECTS) $(UNTESTED_OBJECTS) -o $@

check-unit: unittest/unittest
	-unittest/unittest

lint:
	# Tested with clang-tidy-5.0
	$(CLANG_TIDY) -checks="bugprone-*,clang-analyzer-core.*,clang-analyzer-nullability.*,clang-analyzer-optin.portability.*,clang-analyzer-security.*,-clang-analyzer-security.insecureAPI.strcpy,clang-analyzer-unix.*,clang-analyzer-valist.*,misc-*,readability-identifier-naming,readability-inconsistent-declaration-parameter-name,readability-misleading-indentation,readability-misplaced-array-index,readability-named-parameter,readability-redundant-*,readability-simplify-boolean-expr" -header-filter='.*' *.c backend/*.c interop/*.c

install: install-compiler install-stdlib

install-compiler: lrlc
	$(MKDIR_P) $(DESTDIR)$(bindir)
	$(INSTALL_PROGRAM) lrlc $(DESTDIR)$(bindir)/lrlc

install-stdlib:
	$(MKDIR_P) $(DESTDIR)$(lrl_includedir)
	cp -r ../stdlib/base.lh ../stdlib/c89 $(DESTDIR)$(lrl_includedir)


uninstall: uninstall-compiler uninstall-stdlib

uninstall-compiler:
	rm -f $(DESTDIR)$(bindir)/lrlc

uninstall-stdlib:
	rm -rf $(DESTDIR)$(lrl_includedir)/base.lh $(DESTDIR)$(lrl_includedir)/c89
	rmdir $(DESTDIR)$(lrl_includedir) 2>/dev/null || true



.PHONY: all clean distclean mostlyclean maintainer-clean install install-compiler install-stdlib uninstall uninstall-compiler uninstall-stdlib check check-tokenizer check-parser check-verifier check-backend check-runtime check-unit
clean:
	rm -f $(OBJECTS) lrlc $(UNIT_TEST_OBJECTS) unittest/unittest
mostlyclean: clean
distclean: clean
maintainer-clean: distclean