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https://github.com/checkpoint-restore/criu.git
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8b99809a4e
The objective is to only do parasite code linking once -- when we link parasite objects with compel plugin(s). So, let's use ar (rather than ld) here. This way we'll have a single ld invocation with the proper flags (from compel ldflags) etc. There are two tricks in doing it: 1. The order of objects while linking is important. Therefore, compel plugins should be the last to add to ld command line. 2. Somehow ld doesn't want to include parasite-head.o in the output (probably because no one else references it), so we have to force it in with the modification to our linker scripts. NB: compel makefiles are still a big mess, but I'll get there. Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Kir Kolyshkin <kir@openvz.org> Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
98 lines
2.8 KiB
Makefile
98 lines
2.8 KiB
Makefile
CFLAGS := $(filter-out -pg $(CFLAGS-GCOV) $(CFLAGS-ASAN),$(CFLAGS))
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CFLAGS += -DCR_NOGLIBC -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
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CFLAGS += -Wp,-U_FORTIFY_SOURCE -Wp,-D_FORTIFY_SOURCE=0
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PLUGIN_ARCH_DIR := compel/arch/$(ARCH)/plugins
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#
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# CFLAGS, ASFLAGS, LDFLAGS
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#
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# UAPI inclusion, referred as <compel/...>
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ccflags-y += -I compel/include/uapi
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asflags-y += -I compel/include/uapi
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# General compel includes
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ccflags-y += -iquote compel/include
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ccflags-y += -fpie -fno-stack-protector
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# General compel/plugins includes
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ccflags-y += -iquote $(obj)/include
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asflags-y += -iquote $(obj)/include
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# Arch compel/plugins includes
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ccflags-y += -iquote $(PLUGIN_ARCH_DIR)/include
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asflags-y += -iquote $(PLUGIN_ARCH_DIR)/include
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asflags-y += -iquote $(PLUGIN_ARCH_DIR)
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# General flags for assembly
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asflags-y += -fpie -Wstrict-prototypes
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asflags-y += -D__ASSEMBLY__ -nostdlib -fomit-frame-pointer
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asflags-y += -fno-stack-protector
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ldflags-y += -z noexecstack
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#
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# Shmem plugin
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target += shmem
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shmem-lib-y += shmem/shmem.o
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#
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# STD plugin
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target += std
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std-lib-y += std/std.o
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std-lib-y += std/fds.o
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std-lib-y += std/log.o
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std-lib-y += std/string.o
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std-lib-y += std/infect.o
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std-lib-y += ./$(PLUGIN_ARCH_DIR)/std/parasite-head.o
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#
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# FDS plugin
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target += fds
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fds-lib-y += fds/fds.o
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ifeq ($(SRCARCH),x86)
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std-lib-y += ./$(PLUGIN_ARCH_DIR)/std/memcpy.o
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endif
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ifeq ($(SRCARCH),ppc64)
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std-lib-y += ./$(PLUGIN_ARCH_DIR)/std/memcpy.o
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std-lib-y += ./$(PLUGIN_ARCH_DIR)/std/memcmp.o
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endif
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include ./$(PLUGIN_ARCH_DIR)/std/syscalls/Makefile.syscalls
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define syscall-priority
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$(addprefix $(obj)/,$($(1):%.o=%.d)): | $($(2))
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$(addprefix $(obj)/,$($(1):%.o=%.i)): | $($(2))
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$(addprefix $(obj)/,$($(1):%.o=%.s)): | $($(2))
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$(addprefix $(obj)/,$($(1))): | $($(2))
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endef
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#
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# Almost all plugins depen on syscall headers
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# and definitions so we have to order their
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# generation manually.
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$(foreach t,$(target),$(eval $(call syscall-priority,$(t)-lib-y,std-headers-deps)))
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#
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# FIXME syscall-types.h should be setup earlier
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#
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install: compel/plugins/std.lib.a compel/plugins/fds.lib.a
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$(E) " INSTALL " compel plugins
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$(Q) mkdir -p $(DESTDIR)$(LIBEXECDIR)/compel/
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$(Q) install -m 0644 $^ $(DESTDIR)$(LIBEXECDIR)/compel/
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$(Q) mkdir -p $(DESTDIR)$(LIBEXECDIR)/compel/scripts
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$(Q) install -m 0644 compel/arch/$(ARCH)/scripts/compel-pack.lds.S $(DESTDIR)$(LIBEXECDIR)/compel/scripts
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$(E) " INSTALL " compel plugins uapi
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$(Q) mkdir -p $(DESTDIR)$(INCLUDEDIR)/compel/plugins
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$(Q) cp -frL compel/plugins/include/uapi/* $(DESTDIR)$(INCLUDEDIR)/compel/plugins/
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.PHONY: install
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uninstall:
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$(E) " UNINSTALL" compel plugins
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$(Q) $(RM) $(addprefix $(DESTDIR)$(LIBEXECDIR)/compel/,*.lib.a)
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$(Q) $(RM) $(addprefix $(DESTDIR)$(LIBEXECDIR)/compel/scripts/,compel-pack.lds.S)
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$(E) " UNINSTALL" compel and plugins uapi
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$(Q) $(RM) -rf $(addprefix $(DESTDIR)$(INCLUDEDIR)/,compel/plugins)
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.PHONY: uninstall
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