mirror of
https://github.com/checkpoint-restore/criu.git
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70e3b465e8
Somehow clang doesn't always like -Wa flags, for example when making
dependencies (see commit 9303ed3 ("Makefiles: move -Wa,--noexecstack
out of CFLAGS"), which causes build break, scary error messages, and
even hair loss.
There are many ways to solve this. This patch employs the one
that is simple and clean.
The -Wa,-mimplicit-it=always flag was added by commit 79c4b74
("arm: fix compilation on ARMv7"). The reason is, ARM needs an IT
instruction before certain conditionals. Those IT instructions are
almost always automatically generated by assembler itself, but in some
cases a special assembler flag (like the one above) is needed.
As there is only one place in the code that need IT, it's easy to patch
it (add explicit IT) and remove the flag. Note that "IT" generates
no machine code per se, so there should not be any functional change
(although I haven't checked it).
For more info on IT, see http://tinyurl.com/z3ldsdr
Hope for a review from our ARM experts.
travis-ci: success for Fixes to compile on arm with clang
Cc: Christopher Covington <cov@codeaurora.org>
Cc: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
356 lines
8.4 KiB
Makefile
356 lines
8.4 KiB
Makefile
#
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# Import the build engine first
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__nmk_dir=$(CURDIR)/scripts/nmk/scripts/
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export __nmk_dir
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include $(__nmk_dir)include.mk
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include $(__nmk_dir)macro.mk
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CFLAGS += $(USERCFLAGS)
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export CFLAGS
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HOSTCFLAGS ?= $(CFLAGS)
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export HOSTCFLAGS
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#
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# Where we live.
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SRC_DIR := $(CURDIR)
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export SRC_DIR
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#
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# Architecture specific options.
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ifneq ($(filter-out x86 arm arm64 ppc64,$(ARCH)),)
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$(error "The architecture $(ARCH) isn't supported")
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endif
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ifeq ($(ARCH),x86)
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SRCARCH := x86
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LDARCH := i386:x86-64
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VDSO := y
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endif
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ifeq ($(ARCH),arm)
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SRCARCH := arm
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endif
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ifeq ($(ARCH),arm64)
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ARCH := aarch64
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SRCARCH := aarch64
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VDSO := y
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endif
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ifeq ($(ARCH),ppc64)
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SRCARCH := ppc64
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LDARCH := powerpc:common64
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VDSO := y
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endif
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LDARCH ?= $(SRCARCH)
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export SRCARCH LDARCH VDSO
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SRCARCH ?= $(ARCH)
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LDARCH ?= $(SRCARCH)
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export SRCARCH LDARCH VDSO
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UNAME-M := $(shell uname -m)
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export UNAME-M
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ifeq ($(ARCH),arm)
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ARMV := $(shell echo $(UNAME-M) | sed -nr 's/armv([[:digit:]]).*/\1/p; t; i7')
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DEFINES := -DCONFIG_ARMV$(ARMV)
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ifeq ($(ARMV),6)
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USERCFLAGS += -march=armv6
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endif
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ifeq ($(ARMV),7)
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USERCFLAGS += -march=armv7-a
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endif
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PROTOUFIX := y
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endif
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ifeq ($(ARCH),x86)
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DEFINES := -DCONFIG_X86_64
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endif
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#
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# The PowerPC 64 bits architecture could be big or little endian.
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# They are handled in the same way.
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#
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ifeq ($(ARCH),ppc64)
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ifeq ($(UNAME-M),ppc64)
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error := $(error ppc64 big endian not yet supported)
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endif
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DEFINES := -DCONFIG_PPC64
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endif
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export PROTOUFIX DEFINES USERCFLAGS
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#
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# Independent options for all tools.
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DEFINES += -D_FILE_OFFSET_BITS=64
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DEFINES += -D_GNU_SOURCE
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CFLAGS += $(USERCFLAGS)
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WARNINGS := -Wall -Wformat-security
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CFLAGS-GCOV := --coverage -fno-exceptions -fno-inline
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export CFLAGS-GCOV
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ifneq ($(GCOV),)
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LDFLAGS += -lgcov
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CFLAGS += $(CFLAGS-GCOV)
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endif
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ifneq ($(WERROR),0)
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WARNINGS += -Werror
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endif
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ifeq ($(DEBUG),1)
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DEFINES += -DCR_DEBUG
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CFLAGS += -O0 -ggdb3
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else
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CFLAGS += -O2 -g
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endif
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ifeq ($(GMON),1)
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CFLAGS += -pg
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GMONLDOPT += -pg
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export GMON GMONLDOPT
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endif
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CFLAGS += $(WARNINGS) $(DEFINES) -iquote include/
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# Default target
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all: criu lib
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.PHONY: all
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#
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# Version headers.
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include Makefile.versions
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VERSION_HEADER := $(SRC_DIR)/criu/include/version.h
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GITID_FILE := .gitid
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GITID := $(shell if [ -d ".git" ]; then git describe --always; fi)
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# Git repository wasn't inited in CRIU folder
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ifeq ($(GITID),)
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GITID := 0
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else
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GITID_FILE_VALUE := $(shell if [ -f '$(GITID_FILE)' ]; then if [ `cat '$(GITID_FILE)'` = $(GITID) ]; then echo y; fi; fi)
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ifneq ($(GITID_FILE_VALUE),y)
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.PHONY: $(GITID_FILE)
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endif
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endif
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$(GITID_FILE):
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$(call msg-gen, $@)
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$(Q) echo "$(GITID)" > $(GITID_FILE)
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$(VERSION_HEADER): Makefile.versions $(GITID_FILE)
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$(call msg-gen, $@)
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$(Q) echo "/* Autogenerated, do not edit */" > $@
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$(Q) echo "#ifndef __CR_VERSION_H__" >> $@
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$(Q) echo "#define __CR_VERSION_H__" >> $@
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$(Q) echo "#define CRIU_VERSION \"$(CRIU_VERSION)\"" >> $@
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$(Q) echo "#define CRIU_VERSION_MAJOR " $(CRIU_VERSION_MAJOR) >> $@
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$(Q) echo "#define CRIU_VERSION_MINOR " $(CRIU_VERSION_MINOR) >> $@
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ifneq ($(CRIU_VERSION_SUBLEVEL),)
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$(Q) echo "#define CRIU_VERSION_SUBLEVEL " $(CRIU_VERSION_SUBLEVEL) >> $@
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endif
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ifneq ($(CRIU_VERSION_EXTRA),)
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$(Q) echo "#define CRIU_VERSION_EXTRA " $(CRIU_VERSION_EXTRA) >> $@
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endif
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$(Q) echo "#define CRIU_GITID \"$(GITID)\"" >> $@
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$(Q) echo "#endif /* __CR_VERSION_H__ */" >> $@
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#
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# Setup proper link for asm headers in common code.
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include/common/asm: include/common/arch/$(ARCH)/asm
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$(call msg-gen, $@)
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$(Q) ln -s ./arch/$(ARCH)/asm $@
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$(VERSION_HEADER): include/common/asm
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#
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# piegen tool might be disabled by hands. Don't use it until
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# you know what you're doing.
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ifneq ($(filter ia32 x86 ppc64,$(ARCH)),)
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ifneq ($(PIEGEN),no)
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piegen-y := y
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export piegen-y
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endif
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endif
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#
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# Configure variables.
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export CONFIG_HEADER := $(SRC_DIR)/criu/include/config.h
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ifeq ($(filter clean mrproper,$(MAKECMDGOALS)),)
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include $(SRC_DIR)/Makefile.config
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endif
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#
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# Protobuf images first, they are not depending
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# on anything else.
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$(eval $(call gen-built-in,images))
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.PHONY: .FORCE
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#
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# CRIU building done in own directory
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# with slightly different rules so we
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# can't use nmk engine directly (we
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# build syscalls library and such).
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#
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# But note that we're already included
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# the nmk so we can reuse it there.
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criu/%: images/built-in.o $(VERSION_HEADER) $(CONFIG_HEADER) .FORCE
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$(Q) $(MAKE) $(build)=criu $@
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criu: images/built-in.o $(VERSION_HEADER) $(CONFIG_HEADER)
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$(Q) $(MAKE) $(build)=criu all
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.PHONY: criu
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#
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# Libraries next once criu it ready
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# (we might generate headers and such
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# when building criu itself).
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lib/%: criu .FORCE
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$(Q) $(MAKE) -C lib $@
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lib: criu
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$(Q) $(MAKE) -C lib all
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.PHONY: lib
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subclean:
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$(call msg-clean, criu)
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$(Q) $(MAKE) -C lib clean
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$(Q) $(MAKE) -C Documentation clean
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$(Q) $(RM) .gitid
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.PHONY: subclean
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clean: subclean
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$(Q) $(MAKE) $(build)=images $@
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$(Q) $(MAKE) $(build)=criu $@
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.PHONY: clean
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# mrproper depends on clean in nmk
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mrproper: subclean
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$(Q) $(MAKE) $(build)=images $@
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$(Q) $(MAKE) $(build)=criu $@
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$(Q) $(RM) $(CONFIG_HEADER)
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$(Q) $(RM) $(VERSION_HEADER)
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$(Q) $(RM) include/common/asm
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$(Q) $(RM) cscope.*
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$(Q) $(RM) tags TAGS
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.PHONY: mrproper
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#
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# Non-CRIU stuff.
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#
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docs:
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$(Q) $(MAKE) -s -C Documentation all
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.PHONY: docs
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zdtm: all
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$(Q) MAKEFLAGS= $(MAKE) -C test/zdtm all
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.PHONY: zdtm
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test: zdtm
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$(Q) MAKEFLAGS= $(MAKE) -C test
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.PHONY: test
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#
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# Generating tar requires tag matched CRIU_VERSION.
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# If not found then simply use GIT's describe with
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# "v" prefix stripped.
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head-name := $(shell git tag -l v$(CRIU_VERSION))
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ifeq ($(head-name),)
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head-name := $(shell git describe 2>/dev/null)
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endif
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# If no git tag could describe current commit,
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# use pre-defined CRIU_VERSION with GITID (if any).
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ifeq ($(head-name),)
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ifneq ($(GITID),)
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head-name := $(CRIU_VERSION)-$(GITID)
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else
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head-name := $(CRIU_VERSION)
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endif
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endif
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tar-name := $(shell echo $(head-name) | sed -e 's/^v//g')
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criu-$(tar-name).tar.bz2:
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git archive --format tar --prefix 'criu-$(tar-name)/' $(head-name) | bzip2 > $@
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dist tar: criu-$(tar-name).tar.bz2
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@true
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.PHONY: dist tar
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tags:
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$(call msg-gen, $@)
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$(Q) $(RM) tags
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$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' ! -path './test/*' -print | xargs $(CTAGS) -a
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.PHONY: tags
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etags:
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$(call msg-gen, $@)
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$(Q) $(RM) TAGS
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$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' ! -path './test/*' -print | xargs $(ETAGS) -a
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.PHONY: etags
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cscope:
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$(call msg-gen, $@)
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$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' ! -path './test/*' ! -type l -print > cscope.files
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$(Q) $(CSCOPE) -bkqu
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.PHONY: cscope
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gcov:
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$(E) " GCOV"
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$(Q) test -d gcov || mkdir gcov && \
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geninfo --output-filename gcov/criu.info --no-recursion criu/ && \
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cd gcov && \
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genhtml --rc lcov_branch_coverage=1 --output-directory html criu.info
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@echo "Code coverage report is in `pwd`/gcov/html/ directory."
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.PHONY: gcov
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docker-build:
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$(MAKE) -C scripts/build/ x86_64
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.PHONY: docker-build
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docker-test:
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docker run --rm -it --privileged criu-x86_64 ./test/zdtm.py run -a -x tcp6 -x tcpbuf6 -x static/rtc -x cgroup
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.PHONY: docker-test
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help:
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@echo ' Targets:'
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@echo ' all - Build all [*] targets'
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@echo ' * criu - Build criu'
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@echo ' zdtm - Build zdtm test-suite'
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@echo ' docs - Build documentation'
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@echo ' install - Install CRIU (see INSTALL.md)'
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@echo ' uninstall - Uninstall CRIU'
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@echo ' dist - Create a source tarball'
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@echo ' clean - Clean most, but leave enough to navigate'
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@echo ' mrproper - Delete all compiled/generated files'
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@echo ' tags - Generate tags file (ctags)'
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@echo ' etags - Generate TAGS file (etags)'
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@echo ' cscope - Generate cscope database'
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@echo ' test - Run zdtm test-suite'
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@echo ' gcov - Make code coverage report'
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.PHONY: help
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lint:
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flake8 --config=scripts/flake8.cfg test/zdtm.py
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include Makefile.install
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.DEFAULT_GOAL := all
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# Disable implicit rules in _this_ Makefile.
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.SUFFIXES:
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#
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# Optional local include.
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-include Makefile.local
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