kmorph/Makefile at main · multikernel/kmorph · GitHub

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CC      ?= gcc
CFLAGS  ?= -O2 -g
LDFLAGS ?=
PREFIX  ?= /usr/local
DESTDIR ?=
INSTALL ?= install

ifeq ($(STATIC),1)
CC      = musl-gcc
LDFLAGS += -static
endif

WARN     = -Wall -Wextra -Werror -Wshadow -Wmissing-prototypes
CPPFLAGS = -D_GNU_SOURCE -Iinclude -Ilib/fdt -DKMORPHD_PATH='"$(PREFIX)/bin/kmorphd"'
ALL_CFLAGS = -std=gnu11 $(CFLAGS) $(CPPFLAGS)

BUILD = build

FDT_SRCS     = $(wildcard lib/fdt/*.c)
LIB_SRCS     = $(wildcard lib/*.c)
KMORPHD_SRCS = $(filter-out kmorphd/main.c,$(wildcard kmorphd/*.c))
KMORPH_SRCS  = $(filter-out kmorph/main.c,$(wildcard kmorph/*.c))
TEST_SRCS    = $(wildcard tests/test_*.c)

FDT_OBJS     = $(FDT_SRCS:%.c=$(BUILD)/%.o)
LIB_OBJS     = $(LIB_SRCS:%.c=$(BUILD)/%.o)
KMORPHD_OBJS = $(KMORPHD_SRCS:%.c=$(BUILD)/%.o)
KMORPH_OBJS  = $(KMORPH_SRCS:%.c=$(BUILD)/%.o)
TEST_BINS    = $(TEST_SRCS:tests/%.c=$(BUILD)/tests/%)

LIBKMORPH = $(BUILD)/libkmorph.a
BIN       = $(BUILD)/bin

all: $(BIN)/kmorphd $(BIN)/kmorph static-kmorphd

$(BIN)/kmorphd: $(BUILD)/kmorphd/main.o $(KMORPHD_OBJS) $(LIBKMORPH)
	@mkdir -p $(dir $@)
	$(CC) $(LDFLAGS) -o $@ $^

$(BIN)/kmorph: $(BUILD)/kmorph/main.o $(KMORPH_OBJS) $(LIBKMORPH)
	@mkdir -p $(dir $@)
	$(CC) $(LDFLAGS) -o $@ $^

# The successor runs kmorphd from an image with no libc, so the installed
# kmorphd is static, built with musl in its own directory to keep the
# objects apart from the host build the tests link against.
ifeq ($(STATIC),1)
KMORPHD_INSTALL = $(BIN)/kmorphd
static-kmorphd:
else
KMORPHD_INSTALL = $(BUILD)/static/bin/kmorphd
static-kmorphd:
	$(MAKE) BUILD=$(BUILD)/static STATIC=1 $(BUILD)/static/bin/kmorphd
endif

$(LIBKMORPH): $(LIB_OBJS) $(FDT_OBJS)
	$(AR) rcs $@ $^

$(BUILD)/lib/fdt/%.o: lib/fdt/%.c
	@mkdir -p $(dir $@)
	$(CC) $(ALL_CFLAGS) -c -o $@ $<

$(BUILD)/%.o: %.c
	@mkdir -p $(dir $@)
	$(CC) $(ALL_CFLAGS) $(WARN) -MMD -MP -c -o $@ $<

$(BUILD)/tests/%: tests/%.c $(KMORPHD_OBJS) $(KMORPH_OBJS) $(LIBKMORPH)
	@mkdir -p $(dir $@)
	$(CC) $(ALL_CFLAGS) $(WARN) -Itests -Ikmorphd -Ikmorph $(LDFLAGS) -o $@ $^

check: $(TEST_BINS)
	@for t in $(TEST_BINS); do echo "== $$t"; $$t || exit 1; done
	@echo "all tests passed"

DRACUTDIR = $(PREFIX)/lib/dracut/modules.d/99kmorph
LIBDIR    = $(PREFIX)/lib/kmorph
UNITDIR   = $(PREFIX)/lib/systemd/system
KINSTDIR  = $(PREFIX)/lib/kernel/install.d
POSTINSTDIR = /etc/kernel/postinst.d
IRTDIR    = $(PREFIX)/share/initramfs-tools

install: all
	$(INSTALL) -d $(DESTDIR)$(PREFIX)/bin $(DESTDIR)/etc/kmorph
	$(INSTALL) -m 0755 $(BIN)/kmorph $(KMORPHD_INSTALL) $(DESTDIR)$(PREFIX)/bin/
	$(INSTALL) -m 0644 kmorph.conf.example $(DESTDIR)/etc/kmorph/
	$(INSTALL) -d $(DESTDIR)$(DRACUTDIR) $(DESTDIR)$(LIBDIR) $(DESTDIR)$(UNITDIR) $(DESTDIR)$(KINSTDIR) $(DESTDIR)$(POSTINSTDIR)
	$(INSTALL) -d $(DESTDIR)$(IRTDIR)/hooks $(DESTDIR)$(IRTDIR)/scripts/init-premount
	$(INSTALL) -m 0755 dist/dracut/99kmorph/module-setup.sh $(DESTDIR)$(DRACUTDIR)/
	$(INSTALL) -m 0644 dist/dracut/99kmorph/kmorphd-initrd.service $(DESTDIR)$(DRACUTDIR)/
	$(INSTALL) -m 0755 dist/dracut/kmorph-mkimage $(DESTDIR)$(LIBDIR)/
	$(INSTALL) -m 0644 dist/systemd/kmorph.service $(DESTDIR)$(UNITDIR)/
	$(INSTALL) -m 0755 dist/kernel-install/60-kmorph.install $(DESTDIR)$(KINSTDIR)/
	$(INSTALL) -m 0755 dist/kernel-install/60-kmorph.install $(DESTDIR)$(POSTINSTDIR)/zz-kmorph
	$(INSTALL) -m 0755 dist/initramfs-tools/hooks/kmorph $(DESTDIR)$(IRTDIR)/hooks/
	$(INSTALL) -m 0755 dist/initramfs-tools/scripts/init-premount/kmorph $(DESTDIR)$(IRTDIR)/scripts/init-premount/

clean:
	rm -rf $(BUILD)

-include $(LIB_OBJS:.o=.d) $(KMORPHD_OBJS:.o=.d) $(KMORPH_OBJS:.o=.d)
-include $(BUILD)/kmorphd/main.d $(BUILD)/kmorph/main.d

.PHONY: all check static-kmorphd install clean