build: Move everything criu related into criu directory

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

.gitignore

@@ -6,31 +6,15 @@
 *.out
 *.swp
 *.swo
-*-blob.h
 *.so
 .git-ignore
 *.patch
 *.pyc
-criu
 cscope*
 tags
 TAGS
-Makefile.local
-syscall-x86-64.S
-include/syscall.h
-include/syscall-codes.h
-protobuf/*.c
-protobuf/*.h
-protobuf/google/protobuf/*.c
-protobuf/google/protobuf/*.h
-include/version.h
-arch/x86/sys-exec-tbl.c
-arch/x86/syscalls.S
-pie/pie.lds.S
-pie/piegen/piegen
-include/config.h
-protobuf-desc-gen.h
-criu.pc
-build
+images/*.c
+images/*.h
+images/google/protobuf/*.c
+images/google/protobuf/*.h
 .gitid
-usr/

Documentation/Makefile

--include ../Makefile.inc
+include $(__nmk_dir)/include.mk
+include $(__nmk_dir)/macro.mk
 
 ASCIIDOC	:= asciidoc
 A2X		:= a2x
@@ -9,10 +10,9 @@ XMLS		:= $(patsubst %.txt,%.xml,$(SRC))
 MANS		:= $(patsubst %.txt,%.8,$(SRC))
 MAN8DIR		:= $(MANDIR)/man8
 
-GROFF=groff
-PAPER=$(shell paperconf 2>/dev/null || echo letter)
-GROFF_OPTS	:= -Tps -t -dpaper=$(PAPER) -P-p$(PAPER) \
-		   -man -msafer -rC1 -rD1 -rS11
+GROFF		:=groff
+PAPER		:=$(shell paperconf 2>/dev/null || echo letter)
+GROFF_OPTS	:= -Tps -t -dpaper=$(PAPER) -P-p$(PAPER) -man -msafer -rC1 -rD1 -rS11
 PSS		:= $(MANS:%.8=%.ps)
 PDFS		:= $(MANS:%.8=%.pdf)
 
@@ -27,20 +27,20 @@ check:
 	done
 
 %.8: %.txt
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(ASCIIDOC) -b docbook -d manpage -o $(patsubst %.8,%.xml,$@) $<
 	$(Q) $(XMLTO) man --skip-validation $(patsubst %.8,%.xml,$@) 2>/dev/null
 
 %.ps: %.8
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(GROFF) $(GROFF_OPTS) $^ > $@
 
 %.pdf: %.ps
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) ps2pdf $< $@
 
 clean:
-	$(E) "  CLEAN   "
+	$(call msg-clean, "Documentation")
 	$(Q) rm -f $(XMLS) $(MANS) $(PSS) $(PDFS)
 
 install: $(MANS)

Makefile

+#
 # Import the build engine first
 __nmk_dir=$(CURDIR)/scripts/nmk/scripts/
 export __nmk_dir
 
 include $(__nmk_dir)/include.mk
-
-VERSION_MAJOR		:= 1
-VERSION_MINOR		:= 8
-VERSION_SUBLEVEL	:=
-VERSION_EXTRA		:=
-VERSION_NAME		:=
-VERSION_SO_MAJOR	:= 1
-VERSION_SO_MINOR	:= 0
-
-export VERSION_MAJOR VERSION_MINOR VERSION_SUBLEVEL VERSION_EXTRA VERSION_NAME
-export VERSION_SO_MAJOR VERSION_SO_MINOR
-
-#
-# FIXME zdtm building procedure requires implicit rules
-# so I can't use strict make file mode and drop completely
-# all of implicit rules, so I tuned only .SUFFIXES:
-#
-# In future zdtm makefiles need to be fixed and the line below
-# may be uncommented.
-#
-#MAKEFLAGS := -r -R
+include $(__nmk_dir)/macro.mk
 
 #
-# Common definitions
-#
-
-FIND		:= find
-CSCOPE		:= cscope
-RM		:= rm -f
-LD		:= $(CROSS_COMPILE)ld
-CC		:= $(CROSS_COMPILE)gcc
-NM		:= $(CROSS_COMPILE)nm
-SH		:= bash
-MAKE		:= make
-OBJCOPY		:= $(CROSS_COMPILE)objcopy
+# To build host helpers.
 HOSTCC		?= gcc
 HOSTLD		?= ld
+export HOSTCC HOSTLD
 
 CFLAGS		+= $(USERCFLAGS)
-HOSTCFLAGS	?= $(CFLAGS)
+export CFLAGS
 
-export HOSTCC
-export HOSTLD
+HOSTCFLAGS	?= $(CFLAGS)
 export HOSTCFLAGS
 
+#
+# Where we live.
+SRC_DIR	:= $(CURDIR)
+export SRC_DIR
 
-ifeq ($(ARCH),x86_64)
-	ARCH         := x86
-endif
-
-ifeq ($(ARCH),x86)
-	SRCARCH      := x86
-	DEFINES      := -DCONFIG_X86_64
-	LDARCH       := i386:x86-64
-	VDSO         := y
-endif
-ifeq ($(ARCH),ia32)
-	SRCARCH      := x86
-	DEFINES      := -DCONFIG_X86_32
-	LDARCH       := i386
-	ldflags-y    += -m elf_i386
-	VDSO         := y
-	USERCFLAGS   += -m32
-	PROTOUFIX    := y
-	export PROTOUFIX ldflags-y
-endif
-
-ifeq ($(GCOV),1)
-	LDFLAGS += -lgcov
-	DEBUG := 1	# disable optimization if we want to measure code coverage
-%.o $(PROGRAM): override CFLAGS += --coverage -fno-exceptions -fno-inline
-endif
+#
+# General architecture specific options.
+UNAME-M := $(shell uname -m)
+export UNAME-M
 
-ifeq ($(shell echo $(ARCH) | sed -e 's/arm.*/arm/'),arm)
-	ARMV         := $(shell echo $(ARCH) | sed -nr 's/armv([[:digit:]]).*/\1/p; t; i7')
-	SRCARCH      := arm
+ifeq ($(ARCH),arm)
+        ARMV		:= $(shell echo $(UNAME-M) | sed -nr 's/armv([[:digit:]]).*/\1/p; t; i7')
         DEFINES		:= -DCONFIG_ARMV$(ARMV)
 
         USERCFLAGS += -Wa,-mimplicit-it=always
@@ -92,7 +43,10 @@ ifeq ($(shell echo $(ARCH) | sed -e 's/arm.*/arm/'),arm)
         endif
 
         PROTOUFIX	:= y
-	export PROTOUFIX
+endif
+
+ifeq ($(ARCH),x86)
+        DEFINES		:= -DCONFIG_X86_64
 endif
 
 ifeq ($(ARCH),aarch64)
@@ -103,43 +57,23 @@ endif
 # The PowerPC 64 bits architecture could be big or little endian.
 # They are handled in the same way.
 #
-ifeq ($(shell echo $(ARCH) | sed -e 's/ppc64.*/ppc64/'),ppc64)
-	ifeq ($(ARCH),ppc64)
+ifeq ($(ARCH),powerpc)
+        ifeq ($(UNAME-M),ppc64)
                 error := $(error ppc64 big endian not yet supported)
         endif
-	SRCARCH	:= ppc64
+
         DEFINES		:= -DCONFIG_PPC64
-	LDARCH	:= powerpc:common64
-	VDSO	:= y
 endif
 
-LDARCH		?= $(SRCARCH)
-
-SRC_DIR		?= $(CURDIR)
-ARCH_DIR	:= arch/$(SRCARCH)
-
-$(if $(wildcard $(ARCH_DIR)),,$(error "The architecture $(ARCH) isn't supported"))
+export PROTOUFIX DEFINES USERCFLAGS
 
 #
-# piegen might be disabled by hands. Don't use it  until
-# you know what you're doing.
-ifneq ($(filter ia32 x86 ppc64le, $(ARCH)),)
-ifneq ($(PIEGEN),no)
-	piegen-y := y
-	export piegen-y
-endif
-endif
-
-cflags-y		+= -iquote include -iquote pie -iquote . -I/usr/include/libnl3
-cflags-y		+= -iquote $(ARCH_DIR) -iquote $(ARCH_DIR)/include
-cflags-y		+= -fno-strict-aliasing
-export cflags-y
-
-LIBS		:= -lrt -lpthread -lprotobuf-c -ldl -lnl-3
-
+# Independent options for all tools.
 DEFINES			+= -D_FILE_OFFSET_BITS=64
 DEFINES			+= -D_GNU_SOURCE
 
+CFLAGS			+= $(USERCFLAGS)
+
 WARNINGS		:= -Wall
 
 ifneq ($(WERROR),0)
@@ -153,189 +87,108 @@ else
         CFLAGS		+= -O2 -g
 endif
 
-ifeq ($(GMON),1)
-	CFLAGS	+= -pg
-	GMONLDOPT := -pg
-endif
-
 CFLAGS			+= $(WARNINGS) $(DEFINES)
-SYSCALL-LIB	:= $(ARCH_DIR)/syscalls.built-in.o
-ARCH-LIB	:= $(ARCH_DIR)/crtools.built-in.o
-CRIU-SO		:= libcriu
-CRIU-LIB	:= lib/c/$(CRIU-SO).so
-CRIU-INC	:= lib/criu.h include/criu-plugin.h include/criu-log.h protobuf/rpc.proto
-ifeq ($(piegen-y),y)
-piegen		:= pie/piegen/piegen
-endif
-
-export CC MAKE CFLAGS LIBS SRCARCH DEFINES MAKEFLAGS CRIU-SO
-export SRC_DIR SYSCALL-LIB SH RM ARCH_DIR OBJCOPY LDARCH LD
-export USERCFLAGS
-export cflags-y
-export VDSO
-
-include Makefile.inc
-include Makefile.config
-include scripts/Makefile.version
-include scripts/Makefile.rules
-
-.SUFFIXES:
 
 #
-# shorthand
-build-old := -r -R -f scripts/Makefile.build makefile=Makefile obj
-build-old-crtools := -r -R -f scripts/Makefile.build makefile=Makefile.crtools obj
-
-PROGRAM		:= criu
-
-.PHONY: all zdtm test rebuild clean distclean tags cscope	\
-	docs help pie protobuf $(ARCH_DIR) clean-built lib crit
-
-all: config pie $(VERSION_HEADER) $(CRIU-LIB)
-	$(Q) $(MAKE) $(PROGRAM)
-	$(Q) $(MAKE) crit
-
-protobuf/%::
-	$(Q) $(MAKE) $(build-old)=protobuf $@
-protobuf:
-	$(Q) $(MAKE) $(build-old)=protobuf all
-
-$(ARCH_DIR)/%:: protobuf config
-	$(Q) $(MAKE) $(build-old)=$(ARCH_DIR) $@
-$(ARCH_DIR): protobuf config
-	$(Q) $(MAKE) $(build-old)=$(ARCH_DIR) all
-
-ifeq ($(piegen-y),y)
-pie/piegen/%: config
-	$(Q) CC=$(HOSTCC) LD=$(HOSTLD) CFLAGS="$(HOSTCFLAGS)" $(MAKE) $(build-old)=pie/piegen $@
-pie/piegen: config
-	$(Q) CC=$(HOSTCC) LD=$(HOSTLD) CFLAGS="$(HOSTCFLAGS)" $(MAKE) $(build-old)=pie/piegen all
-$(piegen): pie/piegen/built-in.o
-	$(E) "  LINK    " $@
-	$(Q) $(HOSTCC) $(HOSTCFLAGS) $^ $(LDFLAGS) -o $@
-.PHONY: pie/piegen
-endif
-
-pie: $(ARCH_DIR) $(piegen)
-	$(Q) $(MAKE) $(build-old)=pie all
+# Protobuf images first, they are not depending
+# on anything else.
+$(eval $(call gen-built-in,images))
+PHONY += images
 
-%.o %.i %.s %.d: $(VERSION_HEADER) pie
-	$(Q) $(MAKE) $(build-old-crtools)=. $@
-built-in.o: $(VERSION_HEADER) pie
-	$(Q) $(MAKE) $(build-old-crtools)=. $@
+#
+# CRIU building done in own directory
+# with slightly different rules so we
+# can't use nmk engine directly (we
+# build syscalls library and such).
+#
+# But note that we're already included
+# the nmk so we can reuse it there.
+criu/%: images/built-in.o
+	$(Q) $(MAKE) -C criu $@
+criu: images/built-in.o
+	$(Q) $(MAKE) -C criu all
+criu/criu: criu
+PHONY += criu
 
-lib/%:: $(VERSION_HEADER) config built-in.o
+#
+# Libraries next once criu it ready
+# (we might generate headers and such
+# when building criu itself).
+lib/%: criu
 	$(Q) $(MAKE) -C lib $@
-lib: $(VERSION_HEADER) config built-in.o
+lib: criu
 	$(Q) $(MAKE) -C lib all
+PHONY += lib
 
-$(CRIU-LIB): lib
-	@true
-crit: lib
-	@true
+all: criu lib
+PHONY += all
 
+clean-built:
+	$(Q) $(MAKE) $(build)=images clean
+	$(Q) $(MAKE) -C criu clean
+	$(Q) $(MAKE) -C lib clean
+PHONY += clean-built
 
-PROGRAM-BUILTINS	+= protobuf/built-in.o
-PROGRAM-BUILTINS	+= built-in.o
+clean: clean-built
+	$(call msg-clean, criu)
+PHONY += clean
 
-$(SYSCALL-LIB) $(ARCH-LIB) $(PROGRAM-BUILTINS): config
+#
+# Non-CRIU stuff.
+#
 
-$(PROGRAM): $(ARCH-LIB) $(PROGRAM-BUILTINS)
-	$(E) "  LINK    " $@
-	$(Q) $(CC) $(CFLAGS) $^ $(LIBS) $(LDFLAGS) $(GMONLDOPT) -rdynamic -o $@
+docs:
+	$(Q) $(MAKE) -s -C Documentation all
+PHONY += docs
 
 zdtm: all
 	$(Q) $(MAKE) -C test/zdtm all
+PHONY += zdtm
 
 test: zdtm
 	$(Q) $(MAKE) -C test
+PHONY += test
 
-clean-built:
-	$(Q) $(RM) $(VERSION_HEADER)
-	$(Q) $(MAKE) $(build-old)=$(ARCH_DIR) clean
-	$(Q) $(MAKE) $(build-old)=protobuf clean
-	$(Q) $(MAKE) $(build-old)=pie/piegen clean
-	$(Q) $(MAKE) $(build-old)=pie clean
-	$(Q) $(MAKE) -C lib clean
-	$(Q) $(MAKE) $(build-old-crtools)=. clean
-	$(Q) $(MAKE) -C Documentation clean
-	$(Q) $(RM) ./include/config.h
-	$(Q) $(RM) ./$(PROGRAM)
-
-rebuild: clean-built
-	$(E) "  FORCE-REBUILD"
-	$(Q) $(MAKE)
-
-clean: clean-built
-	$(E) "  CLEAN"
-	$(Q) $(RM) ./*.img
-	$(Q) $(RM) ./*.out
-	$(Q) $(RM) ./*.bin
-	$(Q) $(RM) ./*.{gcda,gcno,gcov} ./test/`pwd`/*.{gcda,gcno,gcov}
-	$(Q) $(RM) ./pie/*.{gcda,gcno,gcov} ./pie/piegen/*.{gcda,gcno,gcov}
-	$(Q) $(RM) -r ./gcov
-	$(Q) $(RM) protobuf-desc-gen.h
-	$(Q) $(MAKE) -C test $@
-	$(Q) $(RM) ./*.pyc
-	$(Q) $(RM) -r build
-	$(Q) $(RM) -r usr
-
-distclean: clean
-	$(E) "  DISTCLEAN"
-	$(Q) $(RM) ./tags
-	$(Q) $(RM) ./cscope*
+dist: tar
+tar: criu-$(CRTOOLSVERSION).tar.bz2
+criu-$(CRTOOLSVERSION).tar.bz2:
+	git archive --format tar --prefix 'criu-$(CRTOOLSVERSION)/' \
+		v$(CRTOOLSVERSION) | bzip2 > $@
+.PHONY: dist tar
 
 tags:
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(RM) tags
 	$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' ! -path './test/*' -print | xargs ctags -a
+PHONY += tags
 
 cscope:
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' ! -path './test/*' ! -type l -print > cscope.files
 	$(Q) $(CSCOPE) -bkqu
+PHONY += cscope
 
-docs:
-	$(Q) $(MAKE) -s -C Documentation all
+gcov:
+	$(E) " GCOV"
+	$(Q) test -d gcov || mkdir gcov && \
+	cp *.{gcno,c} test/`pwd`/ 	&& \
+	geninfo --output-filename gcov/crtools.h.info --no-recursion . && \
+	geninfo --output-filename gcov/crtools.ns.info --no-recursion test/`pwd`/ && \
+	sed -i 's#/test/`pwd`##' gcov/crtools.ns.info && \
+	cd gcov && \
+	lcov --rc lcov_branch_coverage=1 --add-tracefile crtools.h.info \
+	--add-tracefile crtools.ns.info --output-file criu.info && \
+	genhtml --rc lcov_branch_coverage=1 --output-directory html criu.info
+	@echo "Code coverage report is in `pwd`/gcov/html/ directory."
+PHONY += gcov
 
-dist: tar
-tar: criu-$(CRTOOLSVERSION).tar.bz2
-criu-$(CRTOOLSVERSION).tar.bz2:
-	git archive --format tar --prefix 'criu-$(CRTOOLSVERSION)/' \
-		v$(CRTOOLSVERSION) | bzip2 > $@
-.PHONY: dist tar
+docker-build:
+	docker build -t criu .
+PHONY += docker-build
 
-install: install-criu install-man 
-
-install-criu: all $(CRIU-LIB) install-crit
-	$(E) "  INSTALL " $(PROGRAM)
-	$(Q) mkdir -p $(DESTDIR)$(SBINDIR)
-	$(Q) install -m 755 $(PROGRAM) $(DESTDIR)$(SBINDIR)
-	$(Q) mkdir -p $(DESTDIR)$(LIBDIR)
-	$(Q) install -m 755 $(CRIU-LIB) \
-		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR)
-	$(Q) ln -fns $(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR) \
-		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so.$(VERSION_SO_MAJOR)
-	$(Q) ln -fns $(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR) \
-		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so
-	$(Q) mkdir -p $(DESTDIR)$(INCLUDEDIR)
-	$(Q) install -m 644 $(CRIU-INC) $(DESTDIR)$(INCLUDEDIR)
-	$(Q) mkdir -p $(DESTDIR)$(SYSTEMDUNITDIR)
-	$(Q) sed -e 's,@version@,$(CRTOOLSVERSION),' \
-		-e 's,@libdir@,$(LIBDIR),' \
-		-e 's,@includedir@,$(dir $(INCLUDEDIR)),' \
-		lib/criu.pc.in > criu.pc
-	$(Q) mkdir -p $(DESTDIR)$(LIBDIR)/pkgconfig
-	$(Q) install -m 644 criu.pc $(DESTDIR)$(LIBDIR)/pkgconfig
-
-install-man:
-	$(Q) $(MAKE) -C Documentation install
-
-install-crit: crit
-	$(E) "  INSTALL crit"
-	$(Q) python scripts/crit-setup.py install --root=$(DESTDIR) --prefix=$(PREFIX)
-
-.PHONY: install install-man install-crit install-criu
+docker-test:
+	docker run --rm -it --privileged criu ./test/zdtm.sh -C -x tcp6 -x tcpbuf6 -x static/rtc -x cgroup -x mountpoint
+PHONY += docker-test
 
 help:
 	@echo '    Targets:'
@@ -351,27 +204,14 @@ help:
 	@echo '      rebuild         - Force-rebuild of [*] targets'
 	@echo '      test            - Run zdtm test-suite'
 	@echo '      gcov            - Make code coverage report'
+PHONY += help
 
-gcov:
-	$(E) " GCOV"
-	$(Q) test -d gcov || mkdir gcov && \
-	cp *.{gcno,c} test/`pwd`/ 	&& \
-	geninfo --output-filename gcov/crtools.h.info --no-recursion . && \
-	geninfo --output-filename gcov/crtools.ns.info --no-recursion test/`pwd`/ && \
-	sed -i 's#/test/`pwd`##' gcov/crtools.ns.info && \
-	cd gcov && \
-	lcov --rc lcov_branch_coverage=1 --add-tracefile crtools.h.info --add-tracefile crtools.ns.info --output-file criu.info && \
-	genhtml --rc lcov_branch_coverage=1 --output-directory html criu.info
-	@echo "Code coverage report is in `pwd`/gcov/html/ directory."
-.PHONY: gcov
-
-docker-build:
-	docker build -t criu .
+include Makefile.install
 
-docker-test:
-	docker run --rm -it --privileged criu ./test/zdtm.sh -C -x tcp6 -x tcpbuf6 -x static/rtc -x cgroup -x mountpoint
+.PHONY: $(PHONY)
 
 .DEFAULT_GOAL := all
 
-# include optional local rules
+#
+# Optional local include.
 -include Makefile.local

Makefile.crtools

-obj-y	+= parasite-syscall.o
-obj-y	+= mem.o
-obj-y	+= rst-malloc.o
-obj-y	+= cr-restore.o
-obj-y	+= crtools.o
-obj-y	+= image.o
-obj-y	+= image-desc.o
-obj-y	+= net.o
-obj-y	+= tun.o
-obj-y	+= proc_parse.o
-obj-y	+= sysfs_parse.o
-obj-y	+= cr-dump.o
-obj-y	+= cr-show.o
-obj-y	+= cr-check.o
-obj-y	+= cr-dedup.o
-obj-y	+= util.o
-obj-y	+= bfd.o
-obj-y	+= action-scripts.o
-obj-y	+= sysctl.o
-obj-y	+= ptrace.o
-obj-y	+= kcmp-ids.o
-obj-y	+= rbtree.o
-obj-y	+= log.o
-obj-y	+= libnetlink.o
-obj-y	+= sockets.o
-obj-y	+= sk-inet.o
-obj-y	+= sk-tcp.o
-obj-y	+= sk-unix.o
-obj-y	+= sk-packet.o
-obj-y	+= sk-netlink.o
-obj-y	+= sk-queue.o
-obj-y	+= files.o
-obj-y	+= files-reg.o
-obj-y	+= files-ext.o
-obj-y	+= pipes.o
-obj-y	+= fifo.o
-obj-y	+= file-ids.o
-obj-y	+= namespaces.o
-obj-y	+= uts_ns.o
-obj-y	+= ipc_ns.o
-obj-y	+= netfilter.o
-obj-y	+= shmem.o
-obj-y	+= eventfd.o
-obj-y	+= eventpoll.o
-obj-y	+= mount.o
-obj-y	+= fsnotify.o
-obj-y	+= irmap.o
-obj-y	+= signalfd.o
-obj-y	+= pstree.o
-obj-y	+= bitmap.o
-obj-y	+= protobuf.o
-obj-y	+= protobuf-desc.o
-obj-y	+= tty.o
-obj-y	+= cr-exec.o
-obj-y	+= file-lock.o
-obj-y	+= page-pipe.o
-obj-y	+= page-xfer.o
-obj-y	+= page-read.o
-obj-y	+= pagemap-cache.o
-obj-y	+= kerndat.o
-obj-y	+= stats.o
-obj-y	+= cgroup.o
-obj-y	+= timerfd.o
-obj-y	+= aio.o
-obj-y	+= string.o
-obj-y	+= sigframe.o
-obj-y	+= lsm.o
-ifeq ($(VDSO),y)
-obj-y	+= vdso.o
-obj-y	+= pie/util-vdso.o
-endif
-obj-y	+= cr-service.o
-obj-y	+= plugin.o
-obj-y	+= cr-errno.o
-obj-y	+= pie/pie-relocs.o
-obj-y	+= seize.o
-obj-y	+= fault-injection.o
-obj-y	+= pie/util-fd.o
-obj-y	+= pie/util.o
-obj-y	+= seccomp.o
-
-ifneq ($(MAKECMDGOALS),clean)
-incdeps := y
-endif
-
-PROTOBUF_GEN := scripts/protobuf-gen.sh
-
-protobuf-desc.c: protobuf-desc-gen.h
-
-protobuf-desc-gen.h: $(PROTOBUF_GEN) include/protobuf-desc.h
-	$(E) "  GEN     " $@
-	$(Q) $(SH) $(obj)/$(PROTOBUF_GEN) > $@
-
-cleanup-y += protobuf-desc-gen.h

Makefile.inc

-# Installation paths
-PREFIX		?= /usr/local
-SBINDIR		?= $(PREFIX)/sbin
-MANDIR		?= $(PREFIX)/share/man
-SYSTEMDUNITDIR	?= $(PREFIX)/lib/systemd/system/
-LOGROTATEDIR	?= $(PREFIX)/etc/logrotate.d/
-LIBDIR		?= $(PREFIX)/lib
-# For recent Debian/Ubuntu with multiarch support
-DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture \
-			-qDEB_HOST_MULTIARCH 2>/dev/null)
-ifneq "$(DEB_HOST_MULTIARCH)" ""
-LIBDIR		?= $(PREFIX)/lib/$(DEB_HOST_MULTIARCH)
-# For most other systems
-else ifeq "$(shell uname -m)" "x86_64"
-LIBDIR		?= $(PREFIX)/lib64
-endif
-
-INCLUDEDIR	?= $(PREFIX)/include/criu

Makefile.install

+install: install-criu install-man
+
+install-criu: all $(CRIU-LIB) install-crit
+	$(E) "  INSTALL " $(PROGRAM)
+	$(Q) mkdir -p $(DESTDIR)$(SBINDIR)
+	$(Q) install -m 755 $(PROGRAM) $(DESTDIR)$(SBINDIR)
+	$(Q) mkdir -p $(DESTDIR)$(LIBDIR)
+	$(Q) install -m 755 $(CRIU-LIB) \
+		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR)
+	$(Q) ln -fns $(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR) \
+		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so.$(VERSION_SO_MAJOR)
+	$(Q) ln -fns $(CRIU-SO).so.$(VERSION_SO_MAJOR).$(VERSION_SO_MINOR) \
+		$(DESTDIR)$(LIBDIR)/$(CRIU-SO).so
+	$(Q) mkdir -p $(DESTDIR)$(INCLUDEDIR)
+	$(Q) install -m 644 $(CRIU-INC) $(DESTDIR)$(INCLUDEDIR)
+	$(Q) mkdir -p $(DESTDIR)$(SYSTEMDUNITDIR)
+	$(Q) sed -e 's,@version@,$(CRTOOLSVERSION),' \
+		-e 's,@libdir@,$(LIBDIR),' \
+		-e 's,@includedir@,$(dir $(INCLUDEDIR)),' \
+		lib/criu.pc.in > criu.pc
+	$(Q) mkdir -p $(DESTDIR)$(LIBDIR)/pkgconfig
+	$(Q) install -m 644 criu.pc $(DESTDIR)$(LIBDIR)/pkgconfig
+
+install-man:
+	$(Q) $(MAKE) -C Documentation install
+
+install-crit: crit
+	$(E) "  INSTALL crit"
+	$(Q) python scripts/crit-setup.py install --root=$(DESTDIR) --prefix=$(PREFIX)
+
+.PHONY: install install-man install-crit install-criu

arch/aarch64/Makefile

-targets		+= syscalls
-targets		+= crtools
-
-SYS-ASM		:= syscalls.S
-
-syscalls-asm-y	+= $(SYS-ASM:.S=).o
-crtools-obj-y	+= crtools.o
-crtools-obj-y	+= cpu.o
-
-SYS-DEF		:= ../arm/syscall.def
-SYS-ASM-COMMON	:= syscall-common.S
-SYS-TYPES	:= include/syscall-types.h
-
-SYS-CODES	:= include/syscall-codes.h
-SYS-PROTO	:= include/syscall.h
-
-SYS-GEN		:= ../scripts/arm/gen-syscalls.pl
-SYS-GEN-TBL	:= ../scripts/arm/gen-sys-exec-tbl.pl
-
-SYS-EXEC-TBL	:= sys-exec-tbl.c
-
-syscalls-asm-y-asmflags		+= -fpie -Wstrict-prototypes -Wa,--noexecstack
-syscalls-asm-y-asmflags		+= -nostdlib -fomit-frame-pointer -I$(obj)
-ASMFLAGS	+= -D__ASSEMBLY__
-
-ARCH_BITS	:= 64
-
-$(obj)/$(SYS-ASM): $(obj)/$(SYS-GEN) $(obj)/$(SYS-DEF) $(obj)/$(SYS-ASM-COMMON) $(SYS-TYPES)
-	$(E) "  GEN     " $@
-	$(Q) perl			\
-		$(obj)/$(SYS-GEN)	\
-		$(obj)/$(SYS-DEF)	\
-		$(SYS-CODES)		\
-		$(SYS-PROTO)		\
-		$(obj)/$(SYS-ASM)	\
-		$(SYS-ASM-COMMON)	\
-		$(SYS-TYPES)		\
-		$(ARCH_BITS)
-
-$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
-
-$(obj)/$(SYS-EXEC-TBL): $(obj)/$(SYS-GEN-TBL) $(obj)/$(SYS-DEF)
-	$(E) "  GEN     " $@
-	$(Q) perl			\
-		$(obj)/$(SYS-GEN-TBL)	\
-		$(obj)/$(SYS-DEF)	\
-		$(obj)/$(SYS-EXEC-TBL)	\
-		$(ARCH_BITS)
-
-_all += $(obj)/$(SYS-EXEC-TBL)
-
-cleanup-y += $(obj)/$(SYS-EXEC-TBL) $(obj)/$(SYS-ASM)
-cleanup-y += $(SYS-CODES)
-cleanup-y += $(SYS-PROTO)
-
-ifneq ($(MAKECMDGOALS),clean)
-deps-after := $(obj)/$(SYS-ASM)
-incdeps := y
-endif

arch/arm/Makefile

-targets		+= syscalls
-targets		+= crtools
-
-SYS-ASM		:= syscalls.S
-
-syscalls-asm-y	+= $(SYS-ASM:.S=).o
-crtools-obj-y	+= crtools.o
-crtools-obj-y	+= cpu.o
-
-SYS-DEF		:= syscall.def
-SYS-ASM-COMMON	:= syscall-common.S
-SYS-TYPES	:= include/syscall-types.h
-
-SYS-CODES	:= include/syscall-codes.h
-SYS-PROTO	:= include/syscall.h
-
-SYS-GEN		:= ../scripts/arm/gen-syscalls.pl
-SYS-GEN-TBL	:= ../scripts/arm/gen-sys-exec-tbl.pl
-
-SYS-EXEC-TBL	:= sys-exec-tbl.c
-
-syscalls-asm-y-asmflags		+= -fpie -Wstrict-prototypes -Wa,--noexecstack
-syscalls-asm-y-asmflags		+= -nostdlib -fomit-frame-pointer -I$(obj)
-ASMFLAGS	+= -D__ASSEMBLY__
-
-ARCH_BITS	:= 32
-
-$(obj)/$(SYS-ASM): $(obj)/$(SYS-GEN) $(obj)/$(SYS-DEF) $(obj)/$(SYS-ASM-COMMON) $(SYS-TYPES)
-	$(E) "  GEN     " $@
-	$(Q) perl			\
-		$(obj)/$(SYS-GEN)	\
-		$(obj)/$(SYS-DEF)	\
-		$(SYS-CODES)		\
-		$(SYS-PROTO)		\
-		$(obj)/$(SYS-ASM)	\
-		$(SYS-ASM-COMMON)	\
-		$(SYS-TYPES)		\
-		$(ARCH_BITS)
-
-$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
-
-$(obj)/$(SYS-EXEC-TBL): $(obj)/$(SYS-GEN-TBL) $(obj)/$(SYS-DEF)
-	$(E) "  GEN     " $@
-	$(Q) perl			\
-		$(obj)/$(SYS-GEN-TBL)	\
-		$(obj)/$(SYS-DEF)	\
-		$(obj)/$(SYS-EXEC-TBL)	\
-		$(ARCH_BITS)
-
-_all += $(obj)/$(SYS-EXEC-TBL)
-
-cleanup-y += $(obj)/$(SYS-EXEC-TBL) $(obj)/$(SYS-ASM)
-cleanup-y += $(SYS-CODES)
-cleanup-y += $(SYS-PROTO)
-
-ifneq ($(MAKECMDGOALS),clean)
-deps-after := $(obj)/$(SYS-ASM)
-incdeps := y
-endif

arch/ppc64/Makefile

-targets		+= syscalls
-targets		+= crtools
-
-SYS-ASM		:= syscalls.S
-
-syscalls-asm-y	+= $(SYS-ASM:.S=).o
-crtools-obj-y	+= crtools.o
-crtools-obj-y	+= cpu.o
-
-SYS-DEF		:= syscall-ppc64.def
-SYS-ASM-COMMON	:= syscall-common-ppc64.S
-
-SYS-TYPES	:= include/syscall-types.h
-SYS-CODES	:= include/syscall-codes.h
-SYS-PROTO	:= include/syscall.h
-
-SYS-GEN		:= syscalls-ppc64.sh
-
-SYS-EXEC-TBL	:= sys-exec-tbl.c
-
-syscalls-asm-y-asmflags	:= -fpie -Wstrict-prototypes -Wa,--noexecstack
-syscalls-asm-y-asmflags += -nostdlib -fomit-frame-pointer -I$(obj)
-
-ASMFLAGS	+= -D__ASSEMBLY__
-
-$(obj)/$(SYS-ASM): $(obj)/$(SYS-GEN) $(obj)/$(SYS-DEF) $(obj)/$(SYS-ASM-COMMON) $(SYS-TYPES)
-	$(E) "  GEN     " $@
-	$(Q) $(SH)				\
-		$(obj)/$(SYS-GEN) --asm		\
-		$(obj)/$(SYS-DEF)		\
-		$(SYS-CODES)			\
-		$(SYS-PROTO)			\
-		$(obj)/$(SYS-ASM)		\
-		$(SYS-ASM-COMMON)		\
-		$(SYS-TYPES)
-
-$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
-
-$(obj)/$(SYS-EXEC-TBL): $(obj)/$(SYS-GEN) $(obj)/$(SYS-DEF)
-	$(E) "  GEN     " $@
-	$(Q) $(SH)				\
-		$(obj)/$(SYS-GEN) --exec	\
-		$(obj)/$(SYS-DEF)		\
-		$(obj)/$(SYS-EXEC-TBL)
-
-_all += $(obj)/$(SYS-EXEC-TBL)
-
-cleanup-y += $(obj)/$(SYS-EXEC-TBL) $(obj)/$(SYS-ASM)
-cleanup-y += $(SYS-CODES)
-cleanup-y += $(SYS-PROTO)
-
-ifneq ($(MAKECMDGOALS),clean)
-deps-after := $(obj)/$(SYS-ASM)
-incdeps := y
-endif

arch/ppc64/syscalls-ppc64.sh

-#!/bin/sh
-
-gen_asm() {
-	in=$1
-	codesout=$2
-	codesinc=`echo $2 | sed -e 's/.*include\///g'`
-	protosout=$3
-	asmout=$4
-	asmcommon=`echo $5 | sed -e 's/.*include\///g'`
-	prototypes=`echo $6 | sed -e 's/.*include\///g'`
-
-	codesdef=`echo $codesout | sed -e 's/.*include\///g' | tr "[[:space:]].-" _`
-	protosdef=`echo $protosout | sed -e 's/.*include\///g' | tr "[[:space:]].-" _`
-
-	echo "/* Autogenerated, don't edit */"	>  $codesout
-	echo "#ifndef $codesdef"		>> $codesout
-	echo "#define $codesdef"		>> $codesout
-
-	echo "/* Autogenerated, don't edit */"	>  $protosout
-	echo "#ifndef $protosdef"		>> $protosout
-	echo "#define $protosdef"		>> $protosout
-	echo "#ifndef CR_NOGLIBC"		>> $protosout
-	echo "#error This file should only be used in the parasite code" >> $protosout
-	echo "#endif"				>> $protosout
-	echo "#include \"$prototypes\""		>> $protosout
-	echo "#include \"$codesinc\""		>> $protosout
-
-	echo "/* Autogenerated, don't edit */"	>  $asmout
-	echo "#include \"$codesinc\""		>> $asmout
-	echo "#include \"$asmcommon\""		>> $asmout
-
-	cat $in | egrep -v '^#' | sed -e 's/\t\{1,\}/|/g' | awk -F '|' '{print "#define", $1, $2}'		>> $codesout
-	cat $in | egrep -v '^#' | sed -e 's/\t\{1,\}/|/g' | awk -F '|' '{print "extern long ", $3, $4, ";"}'	>> $protosout
-	cat $in | egrep -v '^#' | sed -e 's/\t\{1,\}/|/g' | awk -F '|' '{print "SYSCALL(", $3, ",", $2, ")"}'	>> $asmout
-
-	echo "#endif /* $codesdef */"		>> $codesout
-	echo "#endif /* $protosdef */"		>> $protosout
-}
-
-gen_exec() {
-	in=$1
-	codecout=$2
-
-	echo "/* Autogenerated, don't edit */"	>  $codecout
-
-	cat $in | egrep -v '^#' | sed -e 's/\t\{1,\}/|/g' | awk -F '|' '{print "SYSCALL(", substr($3, 5), ",", $2, ")"}' >> $codecout
-}
-
-if [ "$1" = "--asm" ]; then
-	shift
-	gen_asm $@
-fi
-
-if [ "$1" = "--exec" ]; then
-	shift
-	gen_exec $@
-fi

criu/Makefile

+#
+# CRIU version.
+VERSION_MAJOR		:= 2
+VERSION_MINOR		:= 0
+VERSION_SUBLEVEL	:=
+VERSION_EXTRA		:=
+VERSION_NAME		:=
+
+export VERSION_MAJOR VERSION_MINOR
+export VERSION_SUBLEVEL VERSION_EXTRA VERSION_NAME
+
+#
+# HOST part is needed to build helper
+# tools such as piegen.
+HOSTCC			?= gcc
+HOSTLD			?= ld
+HOSTCFLAGS		?= $(CFLAGS)
+CFLAGS			+= $(USERCFLAGS)
+
+export HOSTCC HOSTLD HOSTCFLAGS
+
+ifeq ($(ARCH),x86)
+        SRCARCH		:= x86
+        LDARCH		:= i386:x86-64
+        VDSO		:= y
+endif
+
+ifeq ($(ARCH),arm)
+        SRCARCH		:= arm
+endif
+
+ifeq ($(ARCH),arm64)
+        ARCH		:= aarch64
+        SRCARCH		:= aarch64
+        VDSO		:= y
+endif
+
+ifeq ($(ARCH),powerpc)
+        ARCH		:= ppc64
+        SRCARCH		:= ppc64
+        LDARCH		:= powerpc:common64
+        VDSO		:= y
+endif
+
+LDARCH ?= $(SRCARCH)
+
+export SRCARCH LDARCH VDSO
+
+SRCARCH			?= $(ARCH)
+LDARCH			?= $(SRCARCH)
+ARCH_DIR		:= arch/$(SRCARCH)
+
+export SRCARCH LDARCH ARCH_DIR VDSO
+
+$(if $(wildcard $(ARCH_DIR)),,$(error "The architecture $(ARCH) isn't supported"))
+
+#
+# General flags.
+ccflags-y		+= -fno-strict-aliasing
+ccflags-y		+= -iquote $(SRC_DIR)/criu/include
+ccflags-y		+= -iquote $(SRC_DIR)/images
+ccflags-y		+= -iquote $(SRC_DIR)/criu/pie
+ccflags-y		+= -iquote $(SRC_DIR)/criu/$(ARCH_DIR)
+ccflags-y		+= -iquote $(SRC_DIR)/criu/$(ARCH_DIR)/include
+ccflags-y		+= -iquote $(SRC_DIR)/
+ccflags-y		+= -I/usr/include/libnl3
+
+export ccflags-y
+
+LIBS			:= -lrt -lpthread -lprotobuf-c -ldl -lnl-3
+
+ifeq ($(GMON),1)
+	CFLAGS		+= -pg
+	GMONLDOPT	:= -pg
+endif
+
+#
+# piegen tool might be disabled by hands. Don't use it until
+# you know what you're doing.
+ifneq ($(filter ia32 x86 ppc64,$(ARCH)),)
+        ifneq ($(PIEGEN),no)
+                piegen-y := y
+                export piegen-y
+        endif
+endif
+
+#
+# Version header file.
+include Makefile.version
+
+#
+# Configure variables.
+include Makefile.config
+config: $(VERSION_HEADER)
+
+#
+# System calls library.
+SYSCALL-LIB		:= $(ARCH_DIR)/syscalls.built-in.o
+$(SYSCALL-LIB): config
+	$(Q) $(MAKE) $(call build-as,Makefile.syscalls,$(ARCH_DIR)) all
+PHONY += $(SYSCALL-LIB)
+
+#
+# Architecture dependant part.
+ARCH-LIB		:= $(ARCH_DIR)/crtools.built-in.o
+$(ARCH-LIB): config $(SYSCALL-LIB)
+	$(Q) $(MAKE) $(call build-as,Makefile,$(ARCH_DIR)) $@
+PHONY += $(ARCH-LIB)
+
+#
+# piegen tool needed for PIE code.
+ifeq ($(piegen-y),y)
+piegen			:= pie/piegen/piegen
+
+pie/piegen/%: config
+	$(Q) CC=$(HOSTCC) LD=$(HOSTLD) CFLAGS="$(HOSTCFLAGS) $(WARNINGS) $(DEFINES)" $(MAKE) $(build)=pie/piegen $@
+pie/piegen: config
+	$(Q) CC=$(HOSTCC) LD=$(HOSTLD) CFLAGS="$(HOSTCFLAGS) $(WARNINGS) $(DEFINES)" $(MAKE) $(build)=pie/piegen all
+$(piegen): pie/piegen/built-in.o
+	$(call msg-link, $@)
+	$(Q) $(HOSTCC) $(HOSTCFLAGS) $^ $(LDFLAGS) -o $@
+PHONY += pie/piegen
+endif
+
+#
+# PIE library code.
+pie/lib.a: $(ARCH-LIB)
+	$(Q) $(MAKE) $(call build-as,Makefile.library,pie) all
+
+#
+# PIE code blobs themseves.
+pie: $(ARCH_DIR) $(piegen) pie/lib.a
+	$(Q) $(MAKE) $(build)=pie all
+PHONY += pie
+
+#
+# CRIU executable
+PROGRAM-BUILTINS	+= ../images/built-in.o
+PROGRAM-BUILTINS	+= built-in.o
+PROGRAM-BUILTINS	+= pie/lib.a
+PROGRAM-BUILTINS	+= $(SYSCALL-LIB)
+
+LIBS			+= arch/$(ARCH)/crtools.built-in.o
+
+built-in.o: pie/lib.a
+	$(Q) $(MAKE) $(call build-as,Makefile.crtools,.) all
+
+criu: $(PROGRAM-BUILTINS) built-in.o
+	$(call msg-link, $@)
+	$(Q) $(CC) $(CFLAGS) $^ $(LIBS) $(LDFLAGS) $(GMONLDOPT) -rdynamic -o $@
+PHONY += criu
+
+#
+# Cleanup everything.
+clean:
+	$(Q) $(MAKE) $(call build-as,Makefile.syscalls,$(ARCH_DIR)) $@
+	$(Q) $(MAKE) $(call build-as,Makefile.library,pie) $@
+	$(Q) $(MAKE) $(call build-as,Makefile.crtools,.) $@
+	$(Q) $(MAKE) $(build)=pie/piegen $@
+	$(Q) $(MAKE) $(build)=pie $@
+	$(Q) $(RM) ./*.{gcda,gcno,gcov}
+	$(Q) $(RM) ./pie/*.{gcda,gcno,gcov}
+	$(Q) $(RM) ./pie/piegen/*.{gcda,gcno,gcov}
+	$(Q) $(RM) -r ./gcov
+	$(Q) $(RM) $(VERSION_HEADER)
+	$(Q) $(RM) $(CONFIG_HEADER)
+
+#
+# Final @all target.
+all: $(PHONY)
+	@true
+
+.PHONY: $(PHONY) clean

Makefile.config → criu/Makefile.config

-include scripts/utilities.mak
-include scripts/feature-tests.mak
+include $(__nmk_dir)/utils.mk
+include ../scripts/feature-tests.mak
 
-CONFIG		:= include/config.h
+CONFIG_HEADER := include/config.h
 
 ifeq ($(call try-cc,$(LIBBSD_DEV_TEST),-lbsd),y)
         LIBS	+= -lbsd
@@ -9,46 +9,53 @@ ifeq ($(call try-cc,$(LIBBSD_DEV_TEST),-lbsd),y)
 endif
 
 ifeq ($(call pkg-config-check,libselinux),y)
-	LIBS := -lselinux $(LIBS)
+        LIBS	+= -lselinux $(LIBS)
         DEFINES	+= -DCONFIG_HAS_SELINUX
 endif
 
-$(CONFIG): scripts/utilities.mak scripts/feature-tests.mak include/config-base.h
-	$(E) "  GEN     " $@
+$(CONFIG_HEADER): include/config-base.h
+	$(call msg-gen, $@)
 	$(Q) @echo '#ifndef __CR_CONFIG_H__' > $@
 	$(Q) @echo '#define __CR_CONFIG_H__' >> $@
 	$(Q) @echo '' >> $@
 	$(Q) @echo '#include "config-base.h"' >> $@
 	$(Q) @echo '' >> $@
-ifeq ($(call try-cc,$(TCP_REPAIR_TEST),),y)
+ifeq ($(call try-cc,$(TCP_REPAIR_TEST),,$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_TCP_REPAIR' >> $@
+	$(Q) @echo '' >> $@
 endif
-ifeq ($(call try-cc,$(PRLIMIT_TEST),),y)
+ifeq ($(call try-cc,$(PRLIMIT_TEST),,$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_PRLIMIT' >> $@
+	$(Q) @echo '' >> $@
 endif
-ifeq ($(call try-cc,$(STRLCPY_TEST),$(LIBS)),y)
+ifeq ($(call try-cc,$(STRLCPY_TEST),$(LIBS),$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_STRLCPY' >> $@
+	$(Q) @echo '' >> $@
 endif
-ifeq ($(call try-cc,$(STRLCAT_TEST),$(LIBS)),y)
+ifeq ($(call try-cc,$(STRLCAT_TEST),$(LIBS),$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_STRLCAT' >> $@
+	$(Q) @echo '' >> $@
 endif
-ifeq ($(call try-cc,$(PTRACE_PEEKSIGINFO_TEST),),y)
+ifeq ($(call try-cc,$(PTRACE_PEEKSIGINFO_TEST),,$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_PEEKSIGINFO_ARGS' >> $@
+	$(Q) @echo '' >> $@
 endif
 ifeq ($(VDSO),y)
 	$(Q) @echo '#define CONFIG_VDSO' >> $@
+	$(Q) @echo '' >> $@
 endif
-ifeq ($(call try-cc,$(SETPROCTITLE_INIT_TEST),-lbsd),y)
+ifeq ($(call try-cc,$(SETPROCTITLE_INIT_TEST),-lbsd,$(DEFINES)),y)
 	$(Q) @echo '#define CONFIG_HAS_SETPROCTITLE_INIT' >> $@
+	$(Q) @echo '' >> $@
 endif
 ifeq ($(call try-cc,$(MEMFD_TEST),),y)
 	$(Q) @echo '#define CONFIG_HAS_MEMFD' >> $@
 endif
 ifeq ($(piegen-y),y)
 	$(Q) @echo '#define CONFIG_PIEGEN' >> $@
+	$(Q) @echo '' >> $@
 endif
 	$(Q) @echo '#endif /* __CR_CONFIG_H__ */' >> $@
 
-config: $(CONFIG)
-
-.PHONY: config
+config: $(CONFIG_HEADER)
+PHONY += config

criu/Makefile.crtools

+ccflags-y		+= -iquote $(ARCH)
+obj-y			+= action-scripts.o
+obj-y			+= aio.o
+obj-y			+= bfd.o
+obj-y			+= bitmap.o
+obj-y			+= cgroup.o
+obj-y			+= cr-check.o
+obj-y			+= cr-dedup.o
+obj-y			+= cr-dump.o
+obj-y			+= cr-errno.o
+obj-y			+= cr-exec.o
+obj-y			+= cr-restore.o
+obj-y			+= cr-service.o
+obj-y			+= cr-show.o
+obj-y			+= crtools.o
+obj-y			+= eventfd.o
+obj-y			+= eventpoll.o
+obj-y			+= fault-injection.o
+obj-y			+= fifo.o
+obj-y			+= file-ids.o
+obj-y			+= file-lock.o
+obj-y			+= files-ext.o
+obj-y			+= files.o
+obj-y			+= files-reg.o
+obj-y			+= fsnotify.o
+obj-y			+= image-desc.o
+obj-y			+= image.o
+obj-y			+= ipc_ns.o
+obj-y			+= irmap.o
+obj-y			+= kcmp-ids.o
+obj-y			+= kerndat.o
+obj-y			+= libnetlink.o
+obj-y			+= log.o
+obj-y			+= lsm.o
+obj-y			+= mem.o
+obj-y			+= mount.o
+obj-y			+= namespaces.o
+obj-y			+= netfilter.o
+obj-y			+= net.o
+obj-y			+= pagemap-cache.o
+obj-y			+= page-pipe.o
+obj-y			+= page-read.o
+obj-y			+= page-xfer.o
+obj-y			+= parasite-syscall.o
+obj-y			+= pie/pie-relocs.o
+obj-y			+= pie-util-fd.o
+obj-y			+= pie-util.o
+obj-y			+= pipes.o
+obj-y			+= plugin.o
+obj-y			+= proc_parse.o
+obj-y			+= protobuf-desc.o
+obj-y			+= protobuf.o
+obj-y			+= pstree.o
+obj-y			+= ptrace.o
+obj-y			+= rbtree.o
+obj-y			+= rst-malloc.o
+obj-y			+= seccomp.o
+obj-y			+= seize.o
+obj-y			+= shmem.o
+obj-y			+= sigframe.o
+obj-y			+= signalfd.o
+obj-y			+= sk-inet.o
+obj-y			+= sk-netlink.o
+obj-y			+= sk-packet.o
+obj-y			+= sk-queue.o
+obj-y			+= sk-tcp.o
+obj-y			+= sk-unix.o
+obj-y			+= sockets.o
+obj-y			+= stats.o
+obj-y			+= string.o
+obj-y			+= sysctl.o
+obj-y			+= sysfs_parse.o
+obj-y			+= timerfd.o
+obj-y			+= tty.o
+obj-y			+= tun.o
+obj-y			+= util.o
+obj-y			+= uts_ns.o
+
+ifeq ($(VDSO),y)
+obj-y			+= pie-util-vdso.o
+obj-y			+= vdso.o
+endif
+
+PROTOBUF_GEN := $(SRC_DIR)/scripts/protobuf-gen.sh
+
+protobuf-desc.c: protobuf-desc-gen.h
+
+protobuf-desc-gen.h: $(PROTOBUF_GEN) include/protobuf-desc.h
+	$(call msg-gen, $@)
+	$(Q) $(SH) $(PROTOBUF_GEN) > $@
+
+cleanup-y += protobuf-desc-gen.h

scripts/Makefile.version → criu/Makefile.version

 CRTOOLSVERSION		:= $(VERSION_MAJOR)$(if $(VERSION_MINOR),.$(VERSION_MINOR))$(if $(VERSION_SUBLEVEL),.$(VERSION_SUBLEVEL))
-
 VERSION_HEADER		:= include/version.h
-GITID_FILE := .gitid
-GITID := $(shell if [ -d ".git" ]; then git describe; fi)
+GITID_FILE		:= ../.gitid
+GITID			:= $(shell if [ -d "../.git" ]; then cd .. && git describe; fi)
 
 ifeq ($(GITID),)
         GITID := 0
 else
-        GITID_FILE_VALUE := $(shell if [ -f '.gitid' ]; then if [ `cat .gitid` = $(GITID) ]; then echo y; fi; fi)
+        GITID_FILE_VALUE := $(shell if [ -f '$(GITID_FILE)' ]; then if [ `cat '$(GITID_FILE)'` = $(GITID) ]; then echo y; fi; fi)
         ifneq ($(GITID_FILE_VALUE),y)
                 .PHONY: $(GITID_FILE)
         endif
 endif
 
 $(GITID_FILE):
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) echo "$(GITID)" > $(GITID_FILE)
 
-$(VERSION_HEADER): Makefile scripts/Makefile.version $(GITID_FILE)
-	$(E) "  GEN     " $@
+$(VERSION_HEADER): Makefile.version $(GITID_FILE)
+	$(call msg-gen, $@)
 	$(Q) echo "/* Autogenerated, do not edit */"			 > $(VERSION_HEADER)
 	$(Q) echo "#ifndef __CR_VERSION_H__"				>> $(VERSION_HEADER)
 	$(Q) echo "#define __CR_VERSION_H__"				>> $(VERSION_HEADER)
@@ -28,9 +27,5 @@ $(VERSION_HEADER): Makefile scripts/Makefile.version $(GITID_FILE)
 	$(Q) echo "#define CRIU_GITID \"$(GITID)\""			>> $(VERSION_HEADER)
 	$(Q) echo "#endif /* __CR_VERSION_H__ */"			>> $(VERSION_HEADER)
 
-##
-## In case if someone add last resort rule
-## together with .SUFFIXES not cleaned, this
-## will slow down the build procedure
-scripts/Makefile.version::
+Makefile.version:
 	@true

criu/arch/aarch64/Makefile

+builtin-name		:= crtools.built-in.o
+
+ccflags-y		+= -iquote $(obj) -iquote $(SRC_DIR)
+ccflags-y		+= -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+obj-y			+= cpu.o
+obj-y			+= crtools.o

criu/arch/aarch64/Makefile.syscalls

+builtin-name		:= syscalls.built-in.o
+
+SYS-TYPES		:= ../../include/syscall-types.h
+SYS-CODES		:= ../../include/syscall-codes.h
+SYS-PROTO		:= ../../include/syscall.h
+
+SYS-DEF			:= syscall.def
+SYS-ASM-COMMON		:= syscall-common.S
+
+SYS-GEN			:= ../scripts/arm/gen-syscalls.pl
+SYS-GEN-TBL		:= ../scripts/arm/gen-sys-exec-tbl.pl
+
+asflags-y		+= -D__ASSEMBLY__ -nostdlib -fomit-frame-pointer
+asflags-y		+= -fpie -Wstrict-prototypes -Wa,--noexecstack
+asflags-y		+= -iquote $(obj) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+SYS-ASM			:= syscalls.S
+obj-y			+= $(SYS-ASM:.S=).o
+
+ARCH_BITS		:= 64
+
+SYS-EXEC-TBL		:= sys-exec-tbl.c
+
+$(obj)/$(SYS-ASM): $(obj)/$(SYS-GEN) $(obj)/syscalls/$(SYS-DEF) $(obj)/syscalls/$(SYS-ASM-COMMON)
+	$(E) "  GEN     " $@
+	$(Q) perl				\
+		$(obj)/$(SYS-GEN)		\
+		$(obj)/syscalls/$(SYS-DEF)	\
+		$(obj)/$(SYS-CODES)		\
+		$(obj)/$(SYS-PROTO)		\
+		$(obj)/$(SYS-ASM)		\
+		syscalls/$(SYS-ASM-COMMON)	\
+		$(obj)/$(SYS-TYPES)		\
+		$(ARCH_BITS)
+
+$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
+
+$(obj)/$(SYS-EXEC-TBL): $(obj)/$(SYS-GEN-TBL) $(obj)/syscalls/$(SYS-DEF)
+	$(E) "  GEN     " $@
+	$(Q) perl				\
+		$(obj)/$(SYS-GEN-TBL)		\
+		$(obj)/syscalls/$(SYS-DEF)	\
+		$(obj)/$(SYS-EXEC-TBL)		\
+		$(ARCH_BITS)
+
+all-y += $(obj)/$(SYS-EXEC-TBL)
+
+cleanup-y += $(obj)/$(SYS-EXEC-TBL) $(obj)/$(SYS-ASM)
+cleanup-y += $(obj)/$(SYS-CODES)
+cleanup-y += $(obj)/$(SYS-PROTO)

criu/arch/aarch64/syscalls/syscall.def

+../../arm/syscalls/syscall.def
\ No newline at end of file

criu/arch/arm/Makefile

+builtin-name		:= crtools.built-in.o
+
+ccflags-y		+= -iquote $(obj) -iquote $(SRC_DIR) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+obj-y			+= cpu.o
+obj-y			+= crtools.o

criu/arch/arm/Makefile.syscalls

+builtin-name		:= syscalls.built-in.o
+
+SYS-TYPES		:= ../../include/syscall-types.h
+SYS-CODES		:= ../../include/syscall-codes.h
+SYS-PROTO		:= ../../include/syscall.h
+
+SYS-DEF			:= syscall.def
+SYS-ASM-COMMON		:= syscall-common.S
+
+SYS-GEN			:= ../scripts/arm/gen-syscalls.pl
+SYS-GEN-TBL		:= ../scripts/arm/gen-sys-exec-tbl.pl
+
+asflags-y		+= -D__ASSEMBLY__ -nostdlib -fomit-frame-pointer
+asflags-y		+= -fpie -Wstrict-prototypes -Wa,--noexecstack
+asflags-y		+= -iquote $(obj) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+SYS-ASM			:= syscalls.S
+obj-y			+= $(SYS-ASM:.S=).o
+
+ARCH_BITS		:= 32
+
+SYS-EXEC-TBL		:= sys-exec-tbl.c
+
+$(obj)/$(SYS-ASM): $(obj)/$(SYS-GEN) $(obj)/syscalls/$(SYS-DEF) $(obj)/syscalls/$(SYS-ASM-COMMON)
+	$(E) "  GEN     " $@
+	$(Q) perl				\
+		$(obj)/$(SYS-GEN)		\
+		$(obj)/syscalls/$(SYS-DEF)	\
+		$(obj)/$(SYS-CODES)		\
+		$(obj)/$(SYS-PROTO)		\
+		$(obj)/$(SYS-ASM)		\
+		syscalls/$(SYS-ASM-COMMON)	\
+		$(obj)/$(SYS-TYPES)		\
+		$(ARCH_BITS)
+
+$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
+
+$(obj)/$(SYS-EXEC-TBL): $(obj)/$(SYS-GEN-TBL) $(obj)/syscalls/$(SYS-DEF)
+	$(E) "  GEN     " $@
+	$(Q) perl				\
+		$(obj)/$(SYS-GEN-TBL)		\
+		$(obj)/syscalls/$(SYS-DEF)	\
+		$(obj)/$(SYS-EXEC-TBL)		\
+		$(ARCH_BITS)
+
+all-y += $(obj)/$(SYS-EXEC-TBL)
+
+cleanup-y += $(obj)/$(SYS-EXEC-TBL) $(obj)/$(SYS-ASM)
+cleanup-y += $(obj)/$(SYS-CODES)
+cleanup-y += $(obj)/$(SYS-PROTO)

criu/arch/ppc64/Makefile

+builtin-name		:= crtools.built-in.o
+
+ccflags-y		+= -iquote $(obj) -iquote $(SRC_DIR) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+obj-y			+= cpu.o
+obj-y			+= crtools.o

criu/arch/ppc64/Makefile.syscalls

+builtin-name		:= syscalls.built-in.o
+
+SYS-TYPES		:= ../../include/syscall-types.h
+SYS-CODES		:= ../../include/syscall-codes.h
+SYS-PROTO		:= ../../include/syscall.h
+SYS-DEF			:= syscall-ppc64.tbl
+SYS-ASM-COMMON		:= syscall-common-ppc64.S
+
+asflags-y		+= -D__ASSEMBLY__ -nostdlib -fomit-frame-pointer
+asflags-y		+= -fpie -Wstrict-prototypes -Wa,--noexecstack
+asflags-y		+= -iquote $(obj) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+SYS-ASM			:= syscalls.S
+obj-y			+= $(SYS-ASM:.S=).o
+
+$(obj)/$(SYS-CODES): $(obj)/syscalls/$(SYS-DEF)
+	$(E) "  GEN     " $@
+	$(Q) echo "/* Autogenerated, don't edit */"							>  $@
+	$(Q) echo "#ifndef __ASM_CR_SYSCALL_CODES_H__"							>> $@
+	$(Q) echo "#define __ASM_CR_SYSCALL_CODES_H__"							>> $@
+	$(Q) cat $< | awk '/^__NR/{print "#define", $$1, $$2}'						>> $@
+	$(Q) echo "#endif /* __ASM_CR_SYSCALL_CODES_H__ */"						>> $@
+cleanup-y		+= $(obj)/$(SYS-CODES)
+
+$(obj)/$(SYS-PROTO): $(obj)/syscalls/$(SYS-DEF)
+	$(E) "  GEN     " $@
+	$(Q) echo "/* Autogenerated, don't edit */"							>  $@
+	$(Q) echo "#ifndef __ASM_CR_SYSCALL_PROTO_H__"							>> $@
+	$(Q) echo "#define __ASM_CR_SYSCALL_PROTO_H__"							>> $@
+	$(Q) echo "#include \"syscall-codes.h\""							>> $@
+	$(Q) echo "#include \"syscall-types.h\""							>> $@
+	$(Q) cat $< | awk  '/^__NR/{print "extern long", $$3, substr($$0, index($$0,$$4)), ";"}'	>> $@
+	$(Q) echo "#endif /* __ASM_CR_SYSCALL_PROTO_H__ */"						>> $@
+cleanup-y		+= $(obj)/$(SYS-PROTO)
+
+$(obj)/$(SYS-ASM): $(obj)/syscalls/$(SYS-DEF) $(obj)/syscalls/$(SYS-ASM-COMMON) $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
+	$(E) "  GEN     " $@
+	$(Q) echo "/* Autogenerated, don't edit */"							>  $@
+	$(Q) echo "#include \"syscall-codes.h\""							>> $@
+	$(Q) echo "#include \"syscalls/$(SYS-ASM-COMMON)\""						>> $@
+	$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", $$3, ",", $$2, ")"}'				>> $@
+cleanup-y		+= $(obj)/$(SYS-ASM)
+
+SYS-EXEC-TBL		:= sys-exec-tbl.c
+$(obj)/$(SYS-EXEC-TBL): $(obj)/syscalls/$(SYS-DEF) $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
+	$(E) "  GEN     " $@
+	$(Q) echo "/* Autogenerated, don't edit */"							>  $@
+	$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", substr($$3, 5), ",", $$2, ")"}'			>> $@
+cleanup-y		+= $(obj)/$(SYS-EXEC-TBL)
+all-y			+= $(obj)/$(SYS-EXEC-TBL)

criu/arch/x86/Makefile

+builtin-name		:= crtools.built-in.o
+
+ccflags-y		+= -iquote $(obj) -iquote $(SRC_DIR) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+obj-y			+= cpu.o
+obj-y			+= crtools.o
+obj-y			+= prlimit.o

arch/x86/Makefile → criu/arch/x86/Makefile.syscalls

-targets		+= syscalls
-targets		+= crtools
-
-SYS-ASM		:= syscalls.S
-
-syscalls-asm-y	+= $(SYS-ASM:.S=).o
-crtools-obj-y	+= crtools.o
-crtools-obj-y	+= cpu.o
-crtools-obj-y	+= prlimit.o
-
-ifeq ($(ARCH),x86)
-SYS-DEF		:= syscall_64.tbl
-SYS-ASM-COMMON	:= syscall-common-x86-64.S
-else
-SYS-DEF		:= syscall_32.tbl
-SYS-ASM-COMMON	:= syscall-common-x86-32.S
-endif
+builtin-name		:= syscalls.built-in.o
 
 SYS-TYPES		:= ../../include/syscall-types.h
 SYS-CODES		:= ../../include/syscall-codes.h
 SYS-PROTO		:= ../../include/syscall.h
 
-SYS-EXEC-TBL	:= sys-exec-tbl.c
-
 ifeq ($(ARCH),x86)
-syscalls-asm-y-asmflags	:= -fpie -Wstrict-prototypes -Wa,--noexecstack
+        SYS-DEF		:= syscall_64.tbl
+        SYS-ASM-COMMON	:= syscall-common-x86-64.S
+        asflags-y	+= -fpie -Wstrict-prototypes -Wa,--noexecstack
 else
-syscalls-asm-y-asmflags	:= -fno-pic -Wstrict-prototypes -Wa,--noexecstack
-endif
-syscalls-asm-y-asmflags += -nostdlib -fomit-frame-pointer -I$(obj)
+        SYS-DEF		:= syscall_32.tbl
+        SYS-ASM-COMMON	:= syscall-common-x86-32.S
+        asflags-y	+= -fno-pic -Wstrict-prototypes -Wa,--noexecstack
+        obj-y		+= syscalls/syscall32.o
 
-ifneq ($(ARCH),x86)
-syscalls-obj-y += syscalls/syscall32.o
 $(obj)/syscalls/syscall32.o: $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
 endif
-cleanup-y += $(obj)/syscalls/*.o $(obj)/syscalls/*.d
 
-ASMFLAGS	+= -D__ASSEMBLY__
+asflags-y		+= -D__ASSEMBLY__ -nostdlib -fomit-frame-pointer
+asflags-y		+= -iquote $(obj) -iquote $(obj)/include -iquote $(SRC_DIR)/criu/include
+
+SYS-ASM			:= syscalls.S
+obj-y			+= $(SYS-ASM:.S=).o
 
 $(obj)/$(SYS-CODES): $(obj)/syscalls/$(SYS-DEF)
 	$(E) "  GEN     " $@
@@ -44,7 +30,6 @@ $(obj)/$(SYS-CODES): $(obj)/syscalls/$(SYS-DEF)
 	$(Q) echo "#define __ASM_CR_SYSCALL_CODES_H__"							>> $@
 	$(Q) cat $< | awk '/^__NR/{print "#define", $$1, $$2}'						>> $@
 	$(Q) echo "#endif /* __ASM_CR_SYSCALL_CODES_H__ */"						>> $@
-_all += $(obj)/$(SYS-CODES)
 cleanup-y		+= $(obj)/$(SYS-CODES)
 
 $(obj)/$(SYS-PROTO): $(obj)/syscalls/$(SYS-DEF)
@@ -53,7 +38,7 @@ $(obj)/$(SYS-PROTO): $(obj)/syscalls/$(SYS-DEF)
 	$(Q) echo "#ifndef __ASM_CR_SYSCALL_PROTO_H__"							>> $@
 	$(Q) echo "#define __ASM_CR_SYSCALL_PROTO_H__"							>> $@
 	$(Q) echo "#ifndef CR_NOGLIBC"									>> $@
-	$(Q) echo "#error This file should only be used in the parasite code"				>> $@
+	$(Q) echo "# error This file should only be used in the parasite code"				>> $@
 	$(Q) echo "#endif"										>> $@
 	$(Q) echo "#include \"syscall-codes.h\""							>> $@
 	$(Q) echo "#include \"syscall-types.h\""							>> $@
@@ -62,7 +47,6 @@ ifneq ($(ARCH),x86)
 endif
 	$(Q) cat $< | awk  '/^__NR/{print "extern long", $$3, substr($$0, index($$0,$$4)), ";"}'	>> $@
 	$(Q) echo "#endif /* __ASM_CR_SYSCALL_PROTO_H__ */"						>> $@
-_all += $(obj)/$(SYS-PROTO)
 cleanup-y		+= $(obj)/$(SYS-PROTO)
 
 $(obj)/$(SYS-ASM): $(obj)/syscalls/$(SYS-DEF) $(obj)/syscalls/$(SYS-ASM-COMMON) $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
@@ -71,21 +55,12 @@ $(obj)/$(SYS-ASM): $(obj)/syscalls/$(SYS-DEF) $(obj)/syscalls/$(SYS-ASM-COMMON)
 	$(Q) echo "#include \"syscall-codes.h\""							>> $@
 	$(Q) echo "#include \"syscalls/$(SYS-ASM-COMMON)\""						>> $@
 	$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", $$3, ",", $$2, ")"}'				>> $@
-_all += $(obj)/$(SYS-ASM)
 cleanup-y		+= $(obj)/$(SYS-ASM)
 
-$(obj)/syscalls.o: $(obj)/$(SYS-ASM)
-
+SYS-EXEC-TBL		:= sys-exec-tbl.c
 $(obj)/$(SYS-EXEC-TBL): $(obj)/syscalls/$(SYS-DEF) $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
 	$(E) "  GEN     " $@
 	$(Q) echo "/* Autogenerated, don't edit */"							>  $@
 	$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", substr($$3, 5), ",", $$2, ")"}'			>> $@
-_all += $(obj)/$(SYS-EXEC-TBL)
 cleanup-y		+= $(obj)/$(SYS-EXEC-TBL)
-
-$(obj)/crtools.built-in.o: | $(obj)/$(SYS-CODES) $(obj)/$(SYS-PROTO)
-
-ifneq ($(MAKECMDGOALS),clean)
-deps-after := $(obj)/$(SYS-ASM)
-incdeps := y
-endif
+all-y			+= $(obj)/$(SYS-EXEC-TBL)

criu/pie-util-fd.c

+pie/util-fd.c
\ No newline at end of file

criu/pie-util-vdso.c

+pie/util-vdso.c
\ No newline at end of file

criu/pie-util.c

+pie/util.c
\ No newline at end of file

pie/Makefile → criu/pie/Makefile

-targets			+= parasite
-targets			+= restorer
-
-# used by obj-x to identify shared files built for parasite/restorer binaries
-xsuffix			:= -pie-build
-
-obj-y			+= log-simple.o
-obj-x			+= util.o
-obj-x			+= util-fd.o
-
-ifeq ($(VDSO),y)
-obj-x			+= util-vdso.o
-obj-y			+= parasite-vdso.o
-obj-e			+= $(ARCH_DIR)/vdso-pie.o
-ifeq ($(SRCARCH),aarch64)
-asm-e			+= $(ARCH_DIR)/intraprocedure.o
-endif
-ifeq ($(SRCARCH), ppc64)
-asm-e			+= $(ARCH_DIR)/vdso-trampoline.o
-endif
-endif
-
-ifeq ($(SRCARCH), ppc64)
-asm-e			+= $(ARCH_DIR)/memcpy_power7.o
-asm-e			+= $(ARCH_DIR)/memcmp_64.o
-asm-e			+= $(ARCH_DIR)/misc.o
-endif
+target			+= parasite
+target			+= restorer
 
 parasite-obj-y		+= parasite.o
-parasite-asm-e		+= $(ARCH_DIR)/parasite-head.o
-parasite-libs-e		+= $(SYSCALL-LIB)
+parasite-obj-y		+= ./$(ARCH_DIR)/parasite-head.o
+parasite-obj-e		+= ./$(ARCH_DIR)/syscalls.built-in.o
 
 restorer-obj-y		+= restorer.o
-restorer-obj-e		+= $(ARCH_DIR)/restorer.o
-restorer-libs-e		+= $(SYSCALL-LIB)
+restorer-obj-y		+= ./$(ARCH_DIR)/restorer.o
+restorer-obj-e		+= ./$(ARCH_DIR)/syscalls.built-in.o
 
 #
 # We can't provide proper mount implementation
@@ -40,20 +15,21 @@ restorer-libs-e		+= $(SYSCALL-LIB)
 # applications, which is not the target of the
 # project.
 #
-CFLAGS			:= $(filter-out -pg,$(CFLAGS)) -iquote pie/piegen
+CFLAGS			:= $(filter-out -pg,$(CFLAGS)) -iquote pie/piegen -iquote arch/$(ARCH)/include -iquote $(SRC_DIR) -iquote $(SRC_DIR)/criu/include
 
-ifneq ($(filter-out i386 ia32, $(ARCH)),)
-cflags-y		+= -DCR_NOGLIBC -fpie -Wa,--noexecstack -fno-stack-protector
+ifneq ($(filter-out ia32,$(ARCH)),)
+        ccflags-y	+= -DCR_NOGLIBC -fpie -Wa,--noexecstack -fno-stack-protector
 else
-cflags-y		+= -DCR_NOGLIBC -fno-pic -Wa,--noexecstack -fno-stack-protector
+        ccflags-y	+= -DCR_NOGLIBC -fno-pic -Wa,--noexecstack -fno-stack-protector
 endif
 
-ifeq ($(SRCARCH), arm)
-	cflags-y	+= -marm
+ifeq ($(SRCARCH),arm)
+        ccflags-y	+= -marm
 endif
-ASMFLAGS		+= -D__ASSEMBLY__
 
-GEN-OFFSETS		:= ../scripts/gen-offsets.sh
+asflags-y		+= -D__ASSEMBLY__
+
+GEN-OFFSETS		:= $(obj)/../../scripts/gen-offsets.sh
 BLOBS			:= $(obj)/parasite-blob.h $(obj)/restorer-blob.h
 
 PIELDS			:= pie.lds.S
@@ -61,24 +37,23 @@ PIELDS			:= pie.lds.S
 .SECONDARY:
 
 ifeq ($(piegen-y),y)
-ldflags-y += -r
 target-name = $(patsubst pie/%-blob.h,%,$(1))
 
 ifeq ($(SRCARCH),ppc64)
 $(obj)/$(PIELDS): $(obj)/pie-reloc.lds.S.in
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) echo "OUTPUT_ARCH($(LDARCH))"              >  $(obj)/$(PIELDS)
 	$(Q) cat $<					>> $(obj)/$(PIELDS)
 else
 ifeq ($(ARCH),x86)
 $(obj)/$(PIELDS): $(obj)/pie-reloc.lds.S.in
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) echo "OUTPUT_ARCH(i386:x86-64)"		>  $(obj)/$(PIELDS)
 	$(Q) echo "TARGET(elf64-x86-64)"		>> $(obj)/$(PIELDS)
 	$(Q) cat $<					>> $(obj)/$(PIELDS)
 else # i386 ia32
 $(obj)/$(PIELDS): $(obj)/pie-reloc.lds.S.in
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) echo "OUTPUT_ARCH(i386)"			>  $(obj)/$(PIELDS)
 	$(Q) echo "TARGET(elf32-i386)"			>> $(obj)/$(PIELDS)
 	$(Q) cat $<					>> $(obj)/$(PIELDS)
@@ -86,47 +61,43 @@ endif
 endif
 
 ifeq ($(strip $(V)),)
-piegen_stdout = >/dev/null
+        piegen_stdout := >/dev/null
 endif
 
-$(obj)/%.built-in.bin.o: $(obj)/%.built-in.o $(obj)/$(PIELDS)
-	$(E) "  GEN     " $@
-	$(Q) $(LD) $(ldflags-y) -T $(obj)/$(PIELDS) -o $@ $<
+$(obj)/%.built-in.bin.o: $(obj)/%.built-in.o $(obj)/lib.a $(obj)/$(PIELDS)
+	$(call msg-gen, $@)
+	$(Q) $(LD) -r -T $(obj)/$(PIELDS) -o $@ $< $(obj)/lib.a
 
 $(obj)/%-blob.h: $(obj)/%.built-in.bin.o $(obj)/$(PIELDS) pie/piegen
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) pie/piegen/piegen -f $< -v $(call target-name,$@)_relocs -p $(call target-name,$@)_blob_offset__ -s $(call target-name,$@)_blob -o $@ $(piegen_stdout)
 
 else
 
 $(obj)/$(PIELDS): $(obj)/$(PIELDS).in
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(SH) -c "echo 'OUTPUT_ARCH($(LDARCH))'	 > $(obj)/$(PIELDS)"
 	$(Q) $(SH) -c "cat $(obj)/$(PIELDS).in		>> $(obj)/$(PIELDS)"
 
 $(obj)/%.built-in.bin.o: $(obj)/%.built-in.o $(obj)/$(PIELDS)
-	$(E) "  GEN     " $@
-	$(Q) $(LD) $(ldflags-y) -T $(obj)/$(PIELDS) -o $@ $<
+	$(call msg-gen, $@)
+	$(Q) $(LD) -r -T $(obj)/$(PIELDS) -o $@ $<
 
 $(obj)/%.built-in.bin: $(obj)/%.built-in.bin.o
-	$(E) "  GEN     " $@
+	$(call msg-gen, $@)
 	$(Q) $(OBJCOPY) -O binary $^ $@
 
-$(obj)/%-blob.h: $(obj)/%.built-in.bin $(obj)/$(GEN-OFFSETS)
-	$(E) "  GEN     " $@
-	$(Q) $(SH) $(obj)/$(GEN-OFFSETS) $(@:-blob.h=) $(notdir $(@:-blob.h=)) $(CROSS_COMPILE) > $@
+$(obj)/%-blob.h: $(obj)/%.built-in.bin $(GEN-OFFSETS)
+	$(call msg-gen, $@)
+	$(Q) $(SH) $(GEN-OFFSETS) $(@:-blob.h=) $(notdir $(@:-blob.h=)) $(CROSS_COMPILE) > $@
 
 endif
 
 $(BLOBS): $(obj)/$(PIELDS)
-_all += $(BLOBS)
+all-y += $(BLOBS)
 
 cleanup-y += $(obj)/$(PIELDS)
 cleanup-y += $(obj)/*.bin
 cleanup-y += $(BLOBS)
 cleanup-y += $(obj)/*.built-in.bin.o
 cleanup-y += $(obj)/*.built-in.bin
-
-ifneq ($(MAKECMDGOALS),clean)
-incdeps := y
-endif

criu/pie/Makefile.library

+lib-y			+= log-simple.o
+lib-y			+= util-fd.o
+lib-y			+= util.o
+
+ifeq ($(VDSO),y)
+        lib-y		+= util-vdso.o
+        lib-y		+= parasite-vdso.o
+        lib-y		+= ./$(ARCH_DIR)/vdso-pie.o
+
+        ifeq ($(SRCARCH),aarch64)
+                lib-y	+= ./$(ARCH_DIR)/intraprocedure.o
+        endif
+
+        ifeq ($(SRCARCH),ppc64)
+                lib-y	+= ./$(ARCH_DIR)/vdso-trampoline.o
+        endif
+endif
+
+ifeq ($(SRCARCH),ppc64)
+        lib-y		+= ./$(ARCH_DIR)/memcpy_power7.o
+        lib-y		+= ./$(ARCH_DIR)/memcmp_64.o
+        lib-y		+= ./$(ARCH_DIR)/misc.o
+endif
+
+#
+# We can't provide proper mount implementation
+# in parasite code -- it requires run-time rellocation
+# applications, which is not the target of the
+# project.
+#
+iquotes			:= -iquote pie/piegen -iquote arch/$(ARCH)/include -iquote $(SRC_DIR) -iquote $(SRC_DIR)/criu/include
+ccflags-y		:= $(filter-out -pg,$(CFLAGS)) $(iquotes)
+asflags-y		:= -D__ASSEMBLY__ $(iquotes)
+
+ifeq ($(SRCARCH),arm)
+	ccflags-y	+= -marm
+endif
+
+ifneq ($(filter-out ia32,$(ARCH)),)
+        ccflags-y	+= -DCR_NOGLIBC -fpie -Wa,--noexecstack -fno-stack-protector
+else
+        ccflags-y	+= -DCR_NOGLIBC -fno-pic -Wa,--noexecstack -fno-stack-protector
+endif

crtools

-criu
\ No newline at end of file

images/Makefile

@@ -59,7 +59,7 @@ proto-obj-y	+= seccomp.o
 proto-obj-y	+= binfmt-misc.o
 proto-obj-y	+= time.o
 
-CFLAGS		+= -I$(obj)/
+CFLAGS		+= -iquote $(obj)/
 
 #
 # Generates a set of names from protobuf "import" directive.
@@ -101,8 +101,6 @@ $(obj)/built-in.o: $(addprefix $(obj)/,$(proto-obj-y))
 	$(E) "  LINK    " $@
 	$(Q) $(LD) $(ldflags-y) -r -o $@ $^
 
-_all += $(obj)/built-in.o
-
 ifneq ($(MAKECMDGOALS),clean)
 -include $(addprefix $(obj)/,$(proto-obj-y:.o=.pb-c.d))
 endif
@@ -112,4 +110,3 @@ cleanup-y += $(obj)/google/protobuf/*.d
 cleanup-y += $(obj)/google/protobuf/*.h
 cleanup-y += $(obj)/google/protobuf/*.c
 cleanup-y += $(obj)/google/protobuf/*.o
-cleanup-y += $(obj)/*.d $(obj)/*.i $(obj)/*.s $(obj)/*.o

lib/Makefile

@@ -15,11 +15,11 @@ c/built-in.o:
 	$(call msg-gen, $@)
 	$(Q) $(MAKE) $(build)=c all
 
-ccflags-so		+= $(CFLAGS) -rdynamic -Wl,-soname,$(lib-so).so.$(VERSION_SO_MAJOR)
+cflags-so		+= $(CFLAGS) -rdynamic -Wl,-soname,$(lib-so).so.$(VERSION_SO_MAJOR)
 ldflags-so		+= -lprotobuf-c
 c/$(CRIU_SO): c/built-in.o
 	$(call msg-link, $@)
-	$(Q) $(CC) -shared $(ccflags-so) -o $@ $^ $(ldflags-so) $(LDFLAGS)
+	$(Q) $(CC) -shared $(cflags-so) -o $@ $^ $(ldflags-so) $(LDFLAGS)
 lib-c: c/$(CRIU_SO)
 PHONY += lib-c
 
@@ -40,3 +40,5 @@ clean:
 all: $(PHONY)
 	@true
 PHONY += all
+
+.PHONY: $(PHONY) clean

lib/c/Makefile

 obj-y			+= criu.o
 obj-y			+= $(SRC_DIR)/images/rpc.pb-c.o
 
-ccflags-y		+= -iquote $(SRC_DIR)/crtools/$(ARCH_DIR)/include
-ccflags-y		+= -iquote $(SRC_DIR)/crtools/include -iquote $(obj)/..
+ccflags-y		+= -iquote $(SRC_DIR)/criu/$(ARCH_DIR)/include
+ccflags-y		+= -iquote $(SRC_DIR)/criu/include -iquote $(obj)/..
 ccflags-y		+= -iquote $(SRC_DIR)/images
 ccflags-y		+= -fPIC -Wa,--noexecstack -fno-stack-protector
-
-#
-# Remove once criu moved into proper place.
-ccflags-y		+= -iquote $(SRC_DIR)/$(ARCH_DIR)/include
-ccflags-y		+= -iquote $(SRC_DIR)/include -iquote $(obj)/..
-ccflags-y		+= -iquote $(SRC_DIR)/images

lib/py/Makefile

@@ -8,7 +8,7 @@ images:
 # rpc_pb2.py doesn't depend on any other file, so
 # it is safe to rename it, dropping ugly _pb2 suffix.
 rpc.py:
-	$(Q) protoc -I=$(SRC_DIR)/protobuf/ --python_out=./ $(SRC_DIR)/protobuf/$(@:.py=.proto)
+	$(Q) protoc -I=$(SRC_DIR)/images/ --python_out=./ $(SRC_DIR)/images/$(@:.py=.proto)
 	$(Q) mv $(@:.py=_pb2.py) $@
 
 clean:

lib/py/images/Makefile

-all: pb.py protobuf magic.py
+all: pb.py images magic.py
 
-.PHONY: all protobuf clean pb.py
+.PHONY: all images clean pb.py
 
-proto := $(filter-out $(SRC_DIR)/protobuf/rpc.proto, $(sort $(wildcard $(SRC_DIR)/protobuf/*.proto)))
+proto := $(filter-out $(SRC_DIR)/images/rpc.proto, $(sort $(wildcard $(SRC_DIR)/images/*.proto)))
 proto-py-modules := $(foreach m,$(proto),$(subst -,_,$(notdir $(m:.proto=_pb2))))
 
-# We don't need rpc_pb2.py here, as it is not related to the
-# images.
+# We don't need rpc_pb2.py here, as it is not related to the images.
 # Unfortunately, we can't drop ugly _pb2 suffixes here, because
 # some _pb2 files depend on others _pb2 files.
-protobuf:
-	$(Q) protoc -I=$(SRC_DIR)/protobuf -I=/usr/include/ --python_out=./ $(proto)
+images:
+	$(Q) protoc -I=$(SRC_DIR)/images -I=/usr/include/ --python_out=./ $(proto)
 
-magic.py: $(SRC_DIR)/scripts/magic-gen.py $(SRC_DIR)/include/magic.h
-	$(E) "  GEN  " $@
+magic.py: $(SRC_DIR)/scripts/magic-gen.py $(SRC_DIR)/criu/include/magic.h
+	$(call msg-gen, $@)
 	$(Q) python $^ $@
 
-pb.py: protobuf
+pb.py: images
 	$(Q) echo "# Autogenerated. Do not edit!" > $@
 	$(Q) for m in $(proto-py-modules); do \
 		echo "from $$m import *" >> $@ ;\

scripts/Makefile.build

-##
-## General helpers for simplified Makefiles.
-##
-MAKEFLAGS := -r -R --no-print-directory
-
-targets		:=
-deps		:=
-deps-after	:=
-all-objs	:=
-incdeps		:=
-_all		:=
-_cleanup-y	:=
-
-include scripts/Makefile.rules
-include $(obj)/$(makefile)
-
-##
-## Append targets to be auto-cleanuped
-define add-cleanup-obj-c-by-name
-_cleanup-y+= $(1).o
-_cleanup-y+= $(1).i
-_cleanup-y+= $(1).d
-_cleanup-y+= $(1).s
-endef
-
-define add-cleanup-obj-S-by-name
-_cleanup-y+= $(1).o
-_cleanup-y+= $(1).d
-_cleanup-y+= $(1).i
-endef
-
-##
-##
-## Generate a bundle of rules for C files
-define gen-target-c-bundle
-$(eval $(call gen-rule-o-from-c-by-name,$(1),$(2),$(3)))
-$(eval $(call gen-rule-i-from-c-by-name,$(1),$(2),$(3)))
-$(eval $(call gen-rule-d-from-c-by-name,$(1),$(2),$(3)))
-$(eval $(call gen-rule-s-from-c-by-name,$(1),$(2),$(3)))
-$(eval $(call add-cleanup-obj-c-by-name,$(1)))
-endef
-
-##
-##
-## Generate a bundle of rules for S files
-define gen-target-S-bundle
-$(eval $(call gen-rule-o-from-S-by-name,$(1),$(2),$(3)))
-$(eval $(call gen-rule-d-from-S-by-name,$(1),$(2),$(3)))
-$(eval $(call gen-rule-i-from-S-by-name,$(1),$(2),$(3)))
-$(eval $(call add-cleanup-obj-S-by-name,$(1)))
-endef
-
-##
-##
-## Shared or standalone targets
-ifneq ($(obj-y),)
-obj-y := $(addprefix $(obj)/, $(obj-y))
-$(foreach file,						\
-	$(obj-y),					\
-	$(eval						\
-		$(call gen-target-c-bundle,		\
-			$(file:.o=),$(file:.o=))))
-all-objs += $(obj-y)
-deps += $(obj-y:.o=.d)
-endif
-
-ifneq ($(obj-x),)
-obj-x := $(addprefix $(obj)/, $(obj-x))
-obj-x := $(addsuffix $(xsuffix).o, $(obj-x:.o=))
-$(foreach file,						\
-	$(obj-x),					\
-	$(eval						\
-		$(call gen-target-c-bundle,		\
-			$(file:$(xsuffix).o=),$(file:.o=))))
-all-objs += $(obj-x)
-deps += $(obj-x:.o=.d)
-cleanup-y += $(obj-x) $(obj-x:.o=.d)
-endif
-
-ifneq ($(obj-e),)
-$(foreach file,						\
-	$(obj-e),					\
-	$(eval						\
-		$(call gen-target-c-bundle,		\
-			$(file:.o=),$(file:.o=))))
-all-objs += $(obj-e)
-deps += $(obj-e:.o=.d)
-endif
-
-ifneq ($(asm-y),)
-asm-y := $(addprefix $(obj)/, $(asm-y))
-$(foreach file,						\
-	$(asm-y),					\
-	$(eval						\
-		$(call gen-target-S-bundle,		\
-			$(file:.o=),$(file:.o=))))
-all-objs += $(asm-y)
-deps += $(asm-y:.o=.d)
-endif
-
-ifneq ($(asm-e),)
-$(foreach file,						\
-	$(asm-e),					\
-	$(eval						\
-		$(call gen-target-S-bundle,		\
-			$(file:.o=),$(file:.o=))))
-all-objs += $(asm-e)
-deps += $(asm-e:.o=.d)
-endif
-
-##
-##
-## Standalone files where sources are kept in external
-## directories. Usually needed when same source files
-## are compiled with different flags.
-ifneq ($(obj-ext-src-y),)
-__obj-ext-src-y := $(addprefix $(obj)/, $(notdir $(obj-ext-src-y)))
-$(foreach file,						\
-	$(obj-ext-src-y),				\
-	$(eval						\
-		$(call gen-target-c-bundle,		\
-			$(file:.o=),			\
-			$(addprefix $(obj)/,$(notdir $(file:.o=))))))
-all-objs += $(__obj-ext-src-y)
-deps += $(__obj-ext-src-y:.o=.d)
-cleanup-y += $(__obj-ext-src-y) $(__obj-ext-src-y:.o=.d)
-endif
-
-##
-##
-## Generate rules for a target
-define gen-target-rules
-
-$(1)-all-objs :=
-
-ifneq ($($(1)-obj-y),)
-	$(foreach file,						\
-		$($(1)-obj-y),					\
-		$(eval						\
-			$(call gen-target-c-bundle,		\
-				$(obj)/$(file:.o=),		\
-				$(obj)/$(file:.o=),		\
-				$($(1)-obj-y-cflags))))
-	$(1)-all-objs += $$(addprefix $(obj)/, $($(1)-obj-y))
-	deps += $$(addprefix $(obj)/, $($(1)-obj-y:.o=.d))
-endif
-
-ifneq ($($(1)-obj-e),)
-	$(foreach file,						\
-		$($(1)-obj-e),					\
-		$(eval						\
-			$(call gen-target-c-bundle,		\
-				$(file:.o=),			\
-				$(file:.o=),			\
-				$($(1)-obj-e-cflags))))
-	$(1)-all-objs += $$($(1)-obj-e)
-	deps += $$($(1)-obj-e:.o=.d)
-endif
-
-ifneq ($($(1)-asm-y),)
-	$(foreach file,						\
-		$($(1)-asm-y),					\
-		$(eval						\
-			$(call gen-target-S-bundle,		\
-				$(obj)/$(file:.o=),		\
-				$(obj)/$(file:.o=),		\
-				$($(1)-asm-y-asmflags))))
-	$(1)-all-objs += $$(addprefix $(obj)/, $($(1)-asm-y))
-	deps += $$($(1)-asm-y:.o=.d)
-endif
-
-ifneq ($($(1)-asm-e),)
-	$(foreach file,						\
-		$($(1)-asm-e),					\
-		$(eval						\
-			$(call gen-target-S-bundle,		\
-				$(file:.o=),			\
-				$(file:.o=),			\
-				$($(1)-asm-e-asmflags))))
-	$(1)-all-objs += $$($(1)-asm-e)
-	deps += $$($(1)-asm-e:.o=.d)
-endif
-
-$(1)-all-objs += $(all-objs)
-
-$$(obj)/$(1).built-in.o: $$($(1)-all-objs) $$($(1)-libs-e) $(libs-e)
-	$$(E) "  LINK    " $$@
-	$$(Q) $$(LD) $$(ldflags-y) -r -o $$@ $$^
-
-_all += $$(obj)/$(1).built-in.o
-cleanup-y += $$(obj)/$(1).built-in.o
-endef
-
-##
-##
-## Walk over all targets and generate rules they require
-$(foreach target,					\
-	$(targets),					\
-	$(eval						\
-		$(call gen-target-rules,$(target))))
-
-##
-##
-## No targets -- just builtin default one
-ifeq ($(targets),)
-ifneq ($(all-objs),)
-$(obj)/built-in.o: $(all-objs) $(libs-e)
-	$(E) "  LINK    " $@
-	$(Q) $(LD) $(ldflags-y) -r -o $@ $^
-
-_all += $(obj)/built-in.o
-cleanup-y += $(obj)/built-in.o
-endif
-endif
-
-##
-## A rule for building library.
-ifneq ($(lib-so),)
-$(obj)/$(lib-so).so: $(all-objs) $(libs-e)
-	$(E) "  LINK    " $@
-	$(Q) $(CC) -shared $(cflags-so) -o $@ $^ $(ldflags-so) $(LDFLAGS)
-
-_all += $(obj)/$(lib-so).so
-cleanup-y += $(obj)/$(lib-so).so
-endif
-
-##
-##
-## Include deps if requested
-ifneq ($(incdeps),)
-ifneq ($(deps-after),)
-$(deps): | $(deps-after)
-endif
--include $(deps)
-endif
-
-##
-##
-## Autocomplete cleanups
-cleanup-y += $(_cleanup-y)
-
-##
-## Predefined .PHONY targets
-.PHONY: all clean
-
-all: $(_all)
-	@true
-
-clean:
-	$(E) "  CLEANUP " $(obj)
-	$(Q) $(RM) $(cleanup-y)

scripts/Makefile.rules

-##
-##
-## These are per-file generators.
-##
-define gen-rule-o-from-c-by-name
-$(2).o: $(1).c
-	$$(E) "  CC      " $$@
-	$$(Q) $$(CC) -c $$(CFLAGS) $$(cflags-y) $(3) $$< -o $$@
-endef
-
-define gen-rule-i-from-c-by-name
-$(2).i: $(1).c
-	$$(E) "  CC      " $$@
-	$$(Q) $$(CC) -E $$(CFLAGS) $$(cflags-y) $(3) $$< -o $$@
-endef
-
-define gen-rule-s-from-c-by-name
-$(2).s: $(1).c
-	$$(E) "  CC      " $$@
-	$$(Q) $$(CC) -S $$(CFLAGS) $$(cflags-y) $(3) -fverbose-asm $$< -o $$@
-endef
-
-define gen-rule-o-from-S-by-name
-$(2).o: $(1).S
-	$$(E) "  CC      " $$@
-	$$(Q) $$(CC) -c $$(CFLAGS) $$(cflags-y) $(3) $$(ASMFLAGS) $(4) $$< -o $$@
-endef
-
-define gen-rule-d-from-c-by-name
-$(2).d: $(1).c
-	$$(E) "  DEP     " $$@
-	$$(Q) $$(CC) -M -MT $$@ -MT $$(patsubst %.d,%.o,$$@) $$(CFLAGS) $$(cflags-y) $(3) $$< -o $$@
-endef
-
-define gen-rule-d-from-S-by-name
-$(2).d: $(1).S
-	$$(E) "  DEP     " $$@
-	$$(Q) $$(CC) -M -MT $$@ -MT $$(patsubst %.d,%.o,$$@) $$(CFLAGS) $$(cflags-y) $(3) $$< -o $$@
-endef
-
-define gen-rule-i-from-S-by-name
-$(2).i: $(1).S
-	$$(E) "  CC      " $$@
-	$$(Q) $$(CC) -E $$(CFLAGS) $$(cflags-y) $(3) $$< -o $$@
-endef
-
-##
-## In case if someone add last resort rule
-## together with .SUFFIXES not cleaned, this
-## will slow down the build procedure
-scripts/Makefile.rules::
-	@true