# libiov - Userspace library for Open-IOV vGPU
# Makefile

PREFIX ?= /usr/local
LIBDIR ?= $(PREFIX)/lib
INCLUDEDIR ?= $(PREFIX)/include
PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig

CC ?= gcc
CFLAGS ?= -O2 -g -Wall -Wextra -fPIC -I../include
LDFLAGS ?= -shared

LIB_NAME = libiov.so
LIB_MAJOR = 1
LIB_MINOR = 0
LIB_PATCH = 0
LIB_VERSION = $(LIB_MAJOR).$(LIB_MINOR).$(LIB_PATCH)
LIB_SONAME = $(LIB_NAME).$(LIB_MAJOR)

# Compatibility symlinks for libvgpu
COMPAT_NAMES = libvgpu.so libvgpu.so.1 libvgpu.so.1.0.0

SRC_DIR = .
OBJ_DIR = obj
SRC = $(SRC_DIR)/libvgpu.c $(SRC_DIR)/rpc_emulator.c
OBJ = $(OBJ_DIR)/libvgpu.o $(OBJ_DIR)/rpc_emulator.o

HEADERS = ../include/libvgpu.h rpc_emulator.h

all: $(OBJ_DIR) $(LIB_NAME) compat-links

$(OBJ_DIR):
	mkdir -p $(OBJ_DIR)

$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(HEADERS)
	$(CC) $(CFLAGS) -c $< -o $@

$(LIB_NAME): $(OBJ)
	$(CC) $(LDFLAGS) -Wl,-soname,$(LIB_SONAME) -o $@ $^
	ln -sf $(LIB_NAME) $(LIB_SONAME)
	ln -sf $(LIB_NAME) $(LIB_NAME).$(LIB_VERSION)

# Create compatibility symlinks for libvgpu
compat-links: $(LIB_NAME)
	@for link in $(COMPAT_NAMES); do \
		ln -sf $(LIB_NAME) $$link; \
	done

install: all
	install -d $(DESTDIR)$(LIBDIR)
	install -d $(DESTDIR)$(INCLUDEDIR)
	install -d $(DESTDIR)$(PKGCONFIGDIR)
	install -m 755 $(LIB_NAME) $(DESTDIR)$(LIBDIR)/$(LIB_NAME).$(LIB_VERSION)
	ln -sf $(LIB_NAME).$(LIB_VERSION) $(DESTDIR)$(LIBDIR)/$(LIB_SONAME)
	ln -sf $(LIB_NAME).$(LIB_VERSION) $(DESTDIR)$(LIBDIR)/$(LIB_NAME)
	# Install compatibility symlinks
	@for link in $(COMPAT_NAMES); do \
		ln -sf $(LIB_NAME).$(LIB_VERSION) $(DESTDIR)$(LIBDIR)/$$link; \
	done
	install -m 644 $(HEADERS) $(DESTDIR)$(INCLUDEDIR)/
	sed -e "s|@PREFIX@|$(PREFIX)|g" \
	    -e "s|@LIBDIR@|$(LIBDIR)|g" \
	    -e "s|@INCLUDEDIR@|$(INCLUDEDIR)|g" \
	    -e "s|@VERSION@|$(LIB_VERSION)|g" \
	    libvgpu.pc.in > $(DESTDIR)$(PKGCONFIGDIR)/libvgpu.pc
	# Also create libiov.pc
	sed -e "s|@PREFIX@|$(PREFIX)|g" \
	    -e "s|@LIBDIR@|$(LIBDIR)|g" \
	    -e "s|@INCLUDEDIR@|$(INCLUDEDIR)|g" \
	    -e "s|@VERSION@|$(LIB_VERSION)|g" \
	    -e "s|libvgpu|libiov|g" \
	    libvgpu.pc.in > $(DESTDIR)$(PKGCONFIGDIR)/libiov.pc

uninstall:
	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME)
	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_SONAME)
	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME).$(LIB_VERSION)
	@for link in $(COMPAT_NAMES); do \
		rm -f $(DESTDIR)$(LIBDIR)/$$link; \
	done
	rm -f $(DESTDIR)$(INCLUDEDIR)/libvgpu.h
	rm -f $(DESTDIR)$(INCLUDEDIR)/rpc_emulator.h
	rm -f $(DESTDIR)$(PKGCONFIGDIR)/libvgpu.pc
	rm -f $(DESTDIR)$(PKGCONFIGDIR)/libiov.pc

clean:
	rm -rf $(OBJ_DIR) $(LIB_NAME) $(LIB_SONAME) $(LIB_NAME).$(LIB_VERSION) $(COMPAT_NAMES)

.PHONY: all install uninstall clean compat-links