mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-24 02:29:23 +00:00
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>
122 lines
4.9 KiB
Text
122 lines
4.9 KiB
Text
std-lib-y += ./$(PLUGIN_ARCH_DIR)/std/syscalls-64.o
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sys-proto-types := $(obj)/include/uapi/std/syscall-types.h
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sys-proto-generic := $(obj)/include/uapi/std/syscall.h
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sys-codes-generic := $(obj)/include/uapi/std/syscall-codes.h
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sys-codes = $(obj)/include/uapi/std/syscall-codes-$(1).h
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sys-proto = $(obj)/include/uapi/std/syscall-$(1).h
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sys-def = $(PLUGIN_ARCH_DIR)/std/syscalls/syscall_$(1).tbl
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sys-asm = $(PLUGIN_ARCH_DIR)/std/syscalls-$(1).S
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sys-asm-common-name = std/syscalls/syscall-common-x86-$(1).S
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sys-asm-common = $(PLUGIN_ARCH_DIR)/$(sys-asm-common-name)
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sys-asm-types := $(obj)/include/uapi/std/asm/syscall-types.h
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sys-exec-tbl = $(PLUGIN_ARCH_DIR)/std/sys-exec-tbl-$(1).c
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sys-bits := 64
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AV := $$$$
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define gen-rule-sys-codes
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$(sys-codes): $(sys-def) $(sys-proto-types)
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$(call msg-gen, $$@)
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$(Q) echo "/* Autogenerated, don't edit */" > $$@
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$(Q) echo "#ifndef ASM_SYSCALL_CODES_H_$(1)__" >> $$@
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$(Q) echo "#define ASM_SYSCALL_CODES_H_$(1)__" >> $$@
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$(Q) cat $$< | awk '/^__NR/{SYSN=$(AV)1; \
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sub("^__NR", "SYS", SYSN); \
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print "\n#ifndef ", $(AV)1; \
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print "#define", $(AV)1, $(AV)2; \
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print "#endif"; \
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print "\n#ifndef ", SYSN; \
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print "#define ", SYSN, $(AV)1; \
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print "#endif";}' >> $$@
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$(Q) echo "#endif /* ASM_SYSCALL_CODES_H_$(1)__ */" >> $$@
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endef
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define gen-rule-sys-proto
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$(sys-proto): $(sys-def) $(sys-proto-types)
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$(call msg-gen, $$@)
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$(Q) echo "/* Autogenerated, don't edit */" > $$@
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$(Q) echo "#ifndef ASM_SYSCALL_PROTO_H_$(1)__" >> $$@
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$(Q) echo "#define ASM_SYSCALL_PROTO_H_$(1)__" >> $$@
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$(Q) echo '#include <compel/plugins/std/syscall-codes-$(1).h>' >> $$@
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$(Q) echo '#include <compel/plugins/std/syscall-types.h>' >> $$@
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ifeq ($(1),32)
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$(Q) echo '#include "asm/syscall32.h"' >> $$@
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endif
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$(Q) cat $$< | awk '/^__NR/{print "extern long", $(AV)3, \
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substr($(AV)0, index($(AV)0,$(AV)4)), ";"}' >> $$@
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$(Q) echo "#endif /* ASM_SYSCALL_PROTO_H_$(1)__ */" >> $$@
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endef
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define gen-rule-sys-asm
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$(sys-asm): $(sys-def) $(sys-asm-common) $(sys-codes) $(sys-proto) $(sys-proto-types)
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$(call msg-gen, $$@)
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$(Q) echo "/* Autogenerated, don't edit */" > $$@
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$(Q) echo '#include <compel/plugins/std/syscall-codes-$(1).h>' >> $$@
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$(Q) echo '#include "$(sys-asm-common-name)"' >> $$@
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$(Q) cat $$< | awk '/^__NR/{print "SYSCALL(", $(AV)3, ",", $(AV)2, ")"}' >> $$@
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endef
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define gen-rule-sys-exec-tbl
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$(sys-exec-tbl): $(sys-def) $(sys-codes) $(sys-proto) $(sys-proto-generic) $(sys-proto-types)
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$(call msg-gen, $$@)
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$(Q) echo "/* Autogenerated, don't edit */" > $$@
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$(Q) cat $$< | awk '/^__NR/{print \
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"SYSCALL(", substr($(AV)3, 5), ",", $(AV)2, ")"}' >> $$@
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endef
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$(sys-codes-generic): $(PLUGIN_ARCH_DIR)/std/syscalls/syscall_32.tbl $(sys-proto-types)
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$(call msg-gen, $@)
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$(Q) echo "/* Autogenerated, don't edit */" > $@
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$(Q) echo "#ifndef __ASM_CR_SYSCALL_CODES_H__" >> $@
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$(Q) echo "#define __ASM_CR_SYSCALL_CODES_H__" >> $@
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$(Q) echo '#include <compel/plugins/std/syscall-codes-64.h>' >> $@
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$(Q) cat $< | awk '/^__NR/{NR32=$$1; \
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sub("^__NR", "__NR32", NR32); \
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print "\n#ifndef ", NR32; \
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print "#define ", NR32, $$2; \
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print "#endif";}' >> $@
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$(Q) echo "#endif /* __ASM_CR_SYSCALL_CODES_H__ */" >> $@
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mrproper-y += $(sys-codes-generic)
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$(sys-proto-generic): $(strip $(call map,sys-proto,$(sys-bits))) $(sys-proto-types)
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$(call msg-gen, $@)
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$(Q) echo "/* Autogenerated, don't edit */" > $@
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$(Q) echo "#ifndef __ASM_CR_SYSCALL_PROTO_H__" >> $@
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$(Q) echo "#define __ASM_CR_SYSCALL_PROTO_H__" >> $@
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$(Q) echo "" >> $@
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$(Q) echo "#ifdef CONFIG_X86_32" >> $@
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$(Q) echo '#include <compel/plugins/std/syscall-32.h>' >> $@
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$(Q) echo "#else" >> $@
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$(Q) echo '#include <compel/plugins/std/syscall-64.h>' >> $@
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$(Q) echo "#endif /* CONFIG_X86_32 */" >> $@
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$(Q) echo "" >> $@
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$(Q) echo "#endif /* __ASM_CR_SYSCALL_PROTO_H__ */" >> $@
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mrproper-y += $(sys-proto-generic)
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define gen-rule-sys-exec-tbl
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$(sys-exec-tbl): $(sys-def) $(sys-codes) $(sys-proto) $(sys-proto-generic)
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$(call msg-gen, $$@)
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$(Q) echo "/* Autogenerated, don't edit */" > $$@
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$(Q) cat $$< | awk '/^__NR/{print \
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"SYSCALL(", substr($(AV)3, 5), ",", $(AV)2, ")"}' >> $$@
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endef
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$(eval $(call map,gen-rule-sys-codes,$(sys-bits)))
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$(eval $(call map,gen-rule-sys-proto,$(sys-bits)))
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$(eval $(call map,gen-rule-sys-asm,$(sys-bits)))
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$(eval $(call map,gen-rule-sys-exec-tbl,$(sys-bits)))
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$(sys-asm-types): $(PLUGIN_ARCH_DIR)/include/asm/syscall-types.h
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$(call msg-gen, $@)
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$(Q) ln -s ../../../../../../$(PLUGIN_ARCH_DIR)/include/asm/syscall-types.h $(sys-asm-types)
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std-headers-deps += $(call sys-codes,$(sys-bits))
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std-headers-deps += $(call sys-proto,$(sys-bits))
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std-headers-deps += $(call sys-asm,$(sys-bits))
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std-headers-deps += $(call sys-exec-tbl,$(sys-bits))
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std-headers-deps += $(sys-codes-generic)
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std-headers-deps += $(sys-proto-generic)
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std-headers-deps += $(sys-asm-types)
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mrproper-y += $(std-headers-deps)
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