# Makefile.in for Serval DNA daemon and libraries
# nnnn
# vim: noet ts=8 sts=0 sw=8
prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
sbindir=@sbindir@
sysconfdir=@sysconfdir@
localstatedir=@localstatedir@
srcdir=@srcdir@
abs_srcdir=@abs_srcdir@
abs_builddir=@abs_builddir@

CC = 			@CC@
AR =			@AR@
RANLIB =		@RANLIB@
JAVAC= 			@JAVAC@

SWIFTC= 		@SWIFTC@
SWIFTCFLAGS= 		@SWIFTCFLAGS@ -I$(abs_builddir) -I$(abs_srcdir)
SWIFTLIBS=		@LIBS@

SWIFT_BUILD= 		@SWIFT_BUILD@
SWIFT_BUILD_FLAGS= 	$(addprefix -Xswiftc , $(SWIFTCFLAGS)) 

SWIFT_MODULE_NAME=	ServalDNA
SWIFT_PACKAGE_DIR=	$(srcdir)/swift-daemon-api
SWIFT_BUILD_DIR=	$(abs_builddir)/swift-daemon-api/build

INSTALL=        	install
INSTALL_PROGRAM=	$(INSTALL)
INSTALL_DATA=   	$(INSTALL) -m 644

include $(srcdir)/headerfiles.mk # sets SQLITE3_AMALGAMATION
include $(srcdir)/sourcefiles.mk # depends on SQLITE3_AMALGAMATION

LIBSODIUM_SUBDIR =	libsodium/
LIBSODIUM_DEV =		libsodium-dev
LIBSODIUM_HEADERS =	$(LIBSODIUM_DEV)/include/sodium.h
LIBSODIUM_A =		$(LIBSODIUM_DEV)/lib/libsodium.a
LIBSODIUM_SO =		$(LIBSODIUM_DEV)/lib/libsodium.so

OBJSDIR_SERVALD =	objs_servald
OBJSDIR_LIB =		objs_lib
OBJSDIR_TOOLS =		objs

OBJSDIRS =		$(OBJSDIR_SERVALD) $(OBJSDIR_LIB) $(OBJSDIR_TOOLS)

SERVAL_DAEMON_OBJS = \
	$(addprefix $(OBJSDIR_SERVALD)/, $(SERVAL_CLIENT_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_SERVALD)/, $(MDP_CLIENT_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_SERVALD)/, $(SERVAL_DAEMON_SOURCES:.c=.o))

ifeq (@HAVE_JNI_H@,yes)

SERVAL_DAEMON_JNI_OBJS = $(OBJSDIR_SERVALD)/servald_jni_features.o

SERVAL_DAEMON_OBJS += \
	$(addprefix $(OBJSDIR_SERVALD)/, $(SERVAL_DAEMON_JNI_SOURCES:.c=.o))

endif

SQLITE3_OBJS = \
	$(addprefix $(OBJSDIR_SERVALD)/, $(notdir $(SQLITE3_SOURCES:.c=.o)))

SERVALD_OBJS = \
	$(SQLITE3_OBJS) \
	$(SERVAL_DAEMON_OBJS)

LIB_SERVAL_OBJS = \
	$(addprefix $(OBJSDIR_LIB)/, $(SERVAL_CLIENT_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_LIB)/, $(CLIENT_ONLY_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_LIB)/, $(MDP_CLIENT_SOURCES:.c=.o))

MONITOR_CLIENT_OBJS = \
	$(addprefix $(OBJSDIR_LIB)/, $(SERVAL_CLIENT_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_LIB)/, $(CLIENT_ONLY_SOURCES:.c=.o)) \
	$(addprefix $(OBJSDIR_LIB)/, $(MONITOR_CLIENT_SRCS:.c=.o))

SIMULATOR_OBJS = \
	$(addprefix $(OBJSDIR_TOOLS)/, $(SIMULATOR_SOURCES:.c=.o))

PREFIXED_HEADERS = $(addprefix $(srcdir)/, $(ALL_HDRS))
PREFIXED_SOURCES = $(addprefix $(srcdir)/, $(ALL_SOURCES))

LDFLAGS=@LDFLAGS@ @LIBS@

CFLAGS= -I. -I$(srcdir)/$(SQLITE3_AMALGAMATION) @CPPFLAGS@ @CFLAGS@
CFLAGS+=-DSYSCONFDIR="\"$(sysconfdir)\"" -DLOCALSTATEDIR="\"$(localstatedir)\""
CFLAGS+=-DSQLITE_THREADSAFE=0 \
	-DSQLITE_OMIT_DATETIME_FUNCS \
	-DSQLITE_OMIT_COMPILEOPTION_DIAGS \
	-DSQLITE_OMIT_DEPRECATED \
	-DSQLITE_OMIT_LOAD_EXTENSION \
	-DSQLITE_OMIT_VIRTUALTABLE \
	-DSQLITE_OMIT_AUTHORIZATION
CFLAGS+=-fPIC -DSERVAL_ENABLE_DEBUG=1 -Wall -Werror -Wextra -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2

# Solaris magic
CFLAGS+=-DSHA2_USE_INTTYPES_H -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D__EXTENSIONS__=1
# OSX magic to compensate for the Solaris magic
CFLAGS+=-D_DARWIN_C_SOURCE
CFLAGS_SQLITE=@CFLAGS_SQLITE@

-include $(srcdir)/Makefile.dbg

# More warnings, discover problems that only happen on some archs
CFLAGS+=-Wextra
# Security enhancements from Debian
CFLAGS+=-Wformat -Werror=format-security -D_FORTIFY_SOURCE=2

CONFIG_H =	@CONFIG_H@

DEFS=		@DEFS@
SWIFTDEFS=	$(addprefix -Xcc , $(DEFS))

# Usage: $(call MERGE_STATIC_LIBS, libdest.a, libsrcfoo.a libsrcbar.a)
MERGE_STATIC_LIBS =	echo MERGE $(1) = $(2); \
			tmp="$$(mktemp -d)" && \
			( cd "$$tmp" $(foreach LIB, $(2), && $(AR) -x $(abspath $(LIB))) ) && \
			$(RM) $(1) && \
			$(AR) -cr $(1) "$$tmp"/*.o && \
			$(RANLIB) $(1) && \
			$(RM) -r "$$tmp"

.PHONY: all libs test install uninstall clean

all:	libs servald directory_service test

libs:	libservaldaemon.so libservaldaemon.a \
	libservalclient.so libservalclient.a \
	libmonitorclient.so libmonitorclient.a

test:   servaldwrap serval-tests \
	fakeradio simulator \
	tfw_createfile

install: servald
	$(INSTALL_PROGRAM) -D servald $(DESTDIR)$(sbindir)/servald

uninstall:
	$(RM) $(DESTDIR)$(sbindir)/servald

clean:
	$(RM) -r $(LIBSODIUM_DEV) \
		 $(OBJSDIRS:%=%/*) \
		 servald \
		 libservaldaemon.so libservaldaemon.a \
		 libservalclient.so libservalclient.a \
		 libmonitorclient.so libmonitorclient.a \
		 tfw_createfile directory_service fakeradio simulator serval-tests \
		 tags
	cd $(LIBSODIUM_SUBDIR) && $(MAKE) clean

distclean: clean
	$(RM) config.h config.status config.log testconfig.sh
	cd $(LIBSODIUM_SUBDIR) && $(MAKE) distclean

# Only provide Java targets if the Java compiler is available.
ifneq ($(JAVAC),)

all:	java-api

clean:	java-api-clean

.PHONY: java-api java-api-clean

java-api:
	@mkdir -p java-api
	@cd java-api && $(MAKE) all

java-api-clean:
	@cd java-api 2>/dev/null && $(MAKE) clean

endif # $(JAVAC)

ifneq ($(SWIFTC),) # Only provide Swift targets if the Swift compiler is available.

all:	swift-daemon-api swift-client-api

test:	servaldswift

clean:	swift-daemon-api-clean swift-client-api-clean

.PHONY: swift-daemon-api swift-daemon-api-clean swift-client-api swift-client-api-clean

libServalDNA.a $(SWIFT_MODULE_NAME).swiftmodule $(SWIFT_MODULE_NAME).swiftdoc: swift-daemon-api
	cp $(SWIFT_BUILD_DIR)/debug/$(notdir $@) $@

swift-daemon-api:
	mkdir -p $(SWIFT_BUILD_DIR) && \
		cd $(SWIFT_PACKAGE_DIR) && \
		$(SWIFT_BUILD) --build-path $(SWIFT_BUILD_DIR) $(SWIFT_BUILD_FLAGS) $(SWIFTDEFS)

swift-daemon-api-clean:
	$(RM) -r $(SWIFT_BUILD_DIR) \
		 $(SWIFT_MODULE_NAME).swiftmodule \
		 $(SWIFT_MODULE_NAME).swiftdoc

swift-client-api:
	@mkdir -p swift-client-api
	cd swift-client-api && $(MAKE) all

swift-client-api-clean:
	cd swift-client-api 2>/dev/null && $(MAKE) clean

endif # $(SWIFTC)

# Build the Sodium elliptic curve encryption library within its 'libsodium'
# subtree, and install its development files (headers and libraries) into our
# $(LIBSODIUM_DEV) subdirectory.  Then use the contents of this subdirectory to
# provide system headers, eg <sodium.h>, and libraries, eg, libsodium.a, to
# compile and link Serval DNA.  This completely avoids any dependency on the
# system's installed libsodium run-time and development packages.

CFLAGS+= -isystem $(LIBSODIUM_DEV)/include

.PHONY: libsodium-dev

libsodium-dev $(LIBSODIUM_HEADERS) $(LIBSODIUM_A): $(LIBSODIUM_DEV)/.installed

# The libsodium package uses libtool, so by default its static libraries get
# compiled without the -fPIC option.  This prevents the libsodium static
# library from being linked into a shared library.  However, this Makefile
# needs to do exactly that, to make libservaldaemon.so, so passes the
# -prefer-pic libtool option, which causes libtool to use -fPIC even when
# compiling for static libraries.

$(LIBSODIUM_DEV)/.installed:
	@echo MAKE $(LIBSODIUM_DEV)
	@mkdir -p $(LIBSODIUM_DEV)
	@$(RM) $@
	@touch $@.in-progress
	@cd $(LIBSODIUM_SUBDIR) && $(MAKE) \
	    CFLAGS+="-prefer-pic" \
	    prefix=$(abspath $(LIBSODIUM_DEV)) \
	    install
	@mv -f $@.in-progress $@

# Source code test coverage support -- see doc/Testing.md

.PHONY: covzero covinit covhtml is_built_with_coverage has_coverage_data

covzero: | is_built_with_coverage
	@echo REMOVE all .gcda files
	@find $(OBJSDIRS) -type f -name '*.gcda' -print0 | xargs -0 $(RM)

covinit: servald-initial.info

covhtml: coverage_html/index.html

is_built_with_coverage:
	@for obj in $(SERVALD_OBJS); do \
	    gcno="$${obj%.o}.gcno" ;\
	    if [ ! -r "$$gcno" ]; then \
	        echo "ERROR: servald has not been compiled for code coverage; missing $$gcno" ;\
	        exit 1 ;\
	    fi ;\
	done

has_coverage_data: | is_built_with_coverage
	@count=0; for obj in $(SERVALD_OBJS); do \
	    gcda="$${obj%.o}.gcda" ;\
	    [ -s "$$gcda" ] && count=$$(($$count + 1)) ;\
	done ;\
	if [ $$count -eq 0 ]; then \
	    echo "ERROR: no code coverage data; run some tests" ;\
	    exit 1 ;\
	fi

servald-initial.info: Makefile servald | is_built_with_coverage
	geninfo --quiet --initial --checksum --base-directory=$(abspath .) --no-external $(OBJSDIR_SERVALD) -o $@

servald-coverage.info: Makefile servald $(shell find $(OBJSDIR_SERVALD) -type f -name '*.gcda' 2>/dev/null) | has_coverage_data
	geninfo --quiet --checksum --base-directory=$(abspath .) --no-external $(OBJSDIR_SERVALD) -o $@ 2>&1 | { grep -v 'WARNING: no data found for .*\.h$$' || true; }
	@[ -s $@ ]

coverage_html/index.html: Makefile servald-initial.info servald-coverage.info
	$(RM) -r coverage_html
	genhtml --quiet servald-initial.info servald-coverage.info -o coverage_html

# Autconf support -- helpful messages to help avoid some common build mistakes.

.PRECIOUS: Makefile config.status $(srcdir)/configure

Makefile: $(srcdir)/Makefile.in config.status
	$(warning Makefile may be out of date, please run ./config.status)

config.status: $(srcdir)/configure
	$(warning config.status may be out of date, please run $(srcdir)/configure)

$(srcdir)/configure: $(srcdir)/configure.ac
	$(warning $(srcdir)configure may be out of date, please run $(if $(srcdir:.=),cd $(srcdir) && ,)autoreconf -f -i -I m4)

# Embed Serval DNA's version into libraries and executables.

$(OBJSDIR_TOOLS)/version.o: $(PREFIXED_SOURCES) \
    			    $(PREFIXED_HEADERS) \
			    $(srcdir)/version_servald.c \
			    $(srcdir)/version_string.sh \
			    $(wildcard VERSION.txt) \
			    $(srcdir)/COPYRIGHT.txt
	@echo CC version_servald.c
	@mkdir -p $(dir $@)
	@$(RM) $(@:.o=.gcno) $(@:.o=.gcda)
	@V=`$(srcdir)/version_string.sh --repository=$(srcdir) --ignore-untracked` \
	 && C="`sed -e :a -e N -e '$$!ba' -e 's/[\\\\"]/\\\\&/g' -e 's/\\n/\\\\n/g' $(srcdir)/COPYRIGHT.txt`" \
	 && $(CC) $(CFLAGS) $(DEFS) -c $(srcdir)/version_servald.c -o $@ -DSERVALD_VERSION="\"$$V\"" -DSERVALD_COPYRIGHT="\"$$C\""

#' <-- fixes vim syntax highlighting

# Compile SQLITE as a special case, because it is imported source code.
# Instead of fixing warnings case-by-case in the sqlite.c source code, simply
# suppress the classes of warnings that cause compilation errors with
# -Werror.
$(SQLITE3_OBJS): $(OBJSDIR_SERVALD)/%.o: $(srcdir)/$(SQLITE3_AMALGAMATION)/%.c
	@echo SERVALD CC $<
	@mkdir -p $(dir $@)
	@$(RM) $(@:.o=.gcno) $(@:.o=.gcda)
	@$(CC) $(CFLAGS) $(CFLAGS_SQLITE) $(DEFS) -c $< -o $@

# No object files in source directory!
%.o: $(srcdir)/%.c

$(OBJSDIR_TOOLS)/%.o: $(srcdir)/%.c
	@echo CC $<
	@mkdir -p $(dir $@)
	@$(RM) $(@:.o=.gcno) $(@:.o=.gcda)
	@$(CC) $(CFLAGS) $(DEFS) -c $< -o $@

$(OBJSDIR_SERVALD)/%.o: $(srcdir)/%.c
	@echo SERVALD CC $<
	@mkdir -p $(dir $@)
	@$(RM) $(@:.o=.gcno) $(@:.o=.gcda)
	@$(CC) $(CFLAGS) $(DEFS) -c $< -o $@

$(OBJSDIR_LIB)/%.o: $(srcdir)/%.c
	@echo LIB CC $<
	@mkdir -p $(dir $@)
	@$(RM) $(@:.o=.gcno) $(@:.o=.gcda)
	@$(CC) $(CFLAGS) $(DEFS) -c $< -o $@

# Dependencies on header files.  The following list of dependencies is too
# broad so it sometimes results in unnecessary re-compilation, but that is
# better than too narrow, which can result in missed re-compilation.

$(SERVAL_DAEMON_OBJS): 			Makefile $(CONFIG_H) $(PREFIXED_HEADERS) $(LIBSODIUM_HEADERS)
$(SERVALD_OBJS):       			Makefile                                 $(LIBSODIUM_HEADERS)
$(LIB_SERVAL_OBJS): 			Makefile $(CONFIG_H) $(PREFIXED_HEADERS) $(LIBSODIUM_HEADERS)
$(OBJSDIR_TOOLS)/tfw_createfile.o:	Makefile $(srcdir)/str.h
$(OBJSDIR_TOOLS)/directory_service.o:	Makefile $(CONFIG_H) $(PREFIXED_HEADERS) $(LIBSODIUM_HEADERS)
$(MONITOR_CLIENT_OBJS):			Makefile $(CONFIG_H) $(PREFIXED_HEADERS) $(LIBSODIUM_HEADERS)
$(SIMULATOR_OBJS):			Makefile $(CONFIG_H) $(PREFIXED_HEADERS) $(LIBSODIUM_HEADERS)

# Rules for main targets.

.INTERMEDIATE: _servald.a
_servald.a: $(SERVALD_OBJS) $(OBJSDIR_TOOLS)/version.o
	@echo AR $@
	@$(RM) $@
	@$(AR) -cr $@ $^

libservaldaemon.a: _servald.a $(LIBSODIUM_A)
	@$(call MERGE_STATIC_LIBS, $@, $^)

libservaldaemon.so: \
		$(OBJSDIR_SERVALD)/servald_features.o \
		$(OBJSDIR_SERVALD)/log_output_console.o \
		$(SERVAL_DAEMON_JNI_OBJS) \
		_servald.a \
		$(LIBSODIUM_A)
	@echo LINK $@
	@$(CC) -Wall -shared -o $@ $(LDFLAGS) $(filter %.o, $^) $(filter %.a, $^)

# The daemon executable.  There is no main.o mentioned in this link line, so
# the link brings it in from libservaldaemon.a in order to resolve the 'main'
# symbol.  The servald_features.o object causes all the other .o object files
# to be pulled into the link.
servald:	$(OBJSDIR_SERVALD)/servald_features.o \
		$(OBJSDIR_SERVALD)/log_output_console.o \
		libservaldaemon.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

ifneq ($(SWIFTC),) # Only provide Swift targets if the Swift compiler is available.

# A servald equivalent whose main entry point and logging output is implemented
# in the Swift language, rather than the C entry point in main.c.  This exists
# mainly to ensure that the Serval daemon library can be linked into a Swift
# program and executed.  This linkage support is needed by the iOS framework
# package.
servaldswift: $(srcdir)/servaldswift.swift \
	      $(OBJSDIR_SERVALD)/servald_features.o \
	      $(SWIFT_MODULE_NAME).swiftmodule \
	      libServalDNA.a \
	      libservaldaemon.a
	@echo SWIFT $@
	@$(SWIFTC) -emit-executable -o $@ \
		$(SWIFTCFLAGS) $(SWIFTDEFS) \
		$(filter %.swift, $^) $(filter %.o, $^) $(filter %.a, $^) \
		$(SWIFTLIBS)

endif # $(SWIFTC)

servaldwrap: $(OBJSDIR_SERVALD)/servalwrap.o
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

serval-tests: 	$(OBJSDIR_SERVALD)/test_features.o \
		libservaldaemon.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

directory_service: $(OBJSDIR_TOOLS)/directory_service.o libservalclient.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

tfw_createfile: $(OBJSDIR_TOOLS)/tfw_createfile.o libservalclient.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

fakeradio: $(OBJSDIR_TOOLS)/fakeradio.o libservalclient.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

simulator: $(SIMULATOR_OBJS) libservalclient.a
	@echo LINK $@
	@$(CC) -Wall -o $@ $^ $(LDFLAGS)

.INTERMEDIATE: _servalclient.a
_servalclient.a: $(LIB_SERVAL_OBJS) $(OBJSDIR_TOOLS)/version.o
	@echo AR $@
	@$(RM) $@
	@$(AR) -cr $@ $^

libservalclient.a: _servalclient.a $(LIBSODIUM_A)
	@$(call MERGE_STATIC_LIBS, $@, $^)

libservalclient.so: $(LIB_SERVAL_OBJS) $(OBJSDIR_TOOLS)/version.o $(LIBSODIUM_A)
	@echo LINK $@
	@$(CC) -Wall -shared -o $@ $(LDFLAGS) $(filter %.o %.a, $^) $(filter %.a, $^)

.INTERMEDIATE: _monitorclient.a
_monitorclient.a: $(MONITOR_CLIENT_OBJS) $(OBJSDIR_TOOLS)/version.o
	@echo AR $@
	@$(RM) $@
	@$(AR) -cr $@ $^

libmonitorclient.a: _monitorclient.a $(LIBSODIUM_A)
	@$(call MERGE_STATIC_LIBS, $@, $^)

libmonitorclient.so: $(MONITOR_CLIENT_OBJS) $(OBJSDIR_TOOLS)/version.o $(LIBSODIUM_A)
	@echo LINK $@
	@$(CC) -Wall -shared -o $@ $(LDFLAGS) $(filter %.o, $^) $(filter %.a, $^)

# The tags will always index all the Serval DNA headers and source files.  If
# serval-tools is installed, then it will also index all the libsodium, JNI
# and Android NDK header files.
$(srcdir)/tags:	Makefile $(PREFIXED_HEADERS) $(PREFIXED_SOURCES)
	{ for file in $(PREFIXED_HEADERS) $(PREFIXED_SOURCES); do echo "$$file"; done; \
	  find $(LIBSODIUM_DEV)/include -type f ; \
	  sp-find-gcc-headers $(CFLAGS) 2>/dev/null; \
	  ndk_prefix=$$(sp-ndk-prefix . 2>/dev/null) && find "$$ndk_prefix/arch-arm/usr/include" -type f; \
	} | ctags -L- -f $@ --tag-relative=yes --c-kinds=defgmpstuv

# Helpful target to update the COPYRIGHT.txt file by harvesting copyright
# information from the contents of all the source and header files.  This
# should be run periodically and the results reviewed, manually adjusted and
# committed to the repository.

findPATH = $(firstword $(wildcard $(addsuffix /$(1),$(subst :, ,$(PATH)))))
COPYRIGHT_TOOL := $(call findPATH,sp-copyright-tool)

copyright:
	@if [ -x "$(COPYRIGHT_TOOL)" ]; then \
	    echo GENERATE COPYRIGHT.txt; \
		$(COPYRIGHT_TOOL) -o COPYRIGHT.txt condense \
			$(PREFIXED_HEADERS) \
			$(PREFIXED_SOURCES) \
			$(find $(srcdir)/java-api -type f -name '*.java') \
			$(find $(srcdir)/swift-api -type f -name '*.swift') \
		    ; \
	else \
	    echo 'sp-copyright-tool is not in $$PATH; COPYRIGHT.txt not updated'; \
	fi