mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-21 17:20:19 +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>
57 lines
2.6 KiB
Text
57 lines
2.6 KiB
Text
ccflags-y += -iquote $(PLUGIN_ARCH_DIR)/std/syscalls/
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asflags-y += -iquote $(PLUGIN_ARCH_DIR)/std/syscalls/
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sys-types := $(obj)/include/uapi/std/syscall-types.h
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sys-codes := $(obj)/include/uapi/std/syscall-codes.h
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sys-proto := $(obj)/include/uapi/std/syscall.h
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sys-def := $(PLUGIN_ARCH_DIR)/std/syscalls/syscall-ppc64.tbl
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sys-asm-common-name := std/syscalls/syscall-common-ppc64.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 = $(PLUGIN_ARCH_DIR)/std/sys-exec-tbl.c
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sys-asm := ./$(PLUGIN_ARCH_DIR)/std/syscalls/syscalls.S
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std-lib-y += $(sys-asm:.S=).o
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$(sys-codes): $(sys-def)
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$(E) " 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) cat $< | awk '/^__NR/{SYSN=$$1; sub("^__NR", "SYS", SYSN);'\
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'print "\n#ifndef ", $$1, "\n#define", $$1, $$2, "\n#endif";'\
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'print "#ifndef ", SYSN, "\n#define ", SYSN, $$1, "\n#endif"}' >> $@
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$(Q) echo "#endif /* __ASM_CR_SYSCALL_CODES_H__ */" >> $@
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$(sys-proto): $(sys-def)
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$(E) " GEN " $@
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$(Q) echo "/* Autogenerated, don't edit */" > $@
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$(Q) echo "#ifndef __ASM_CR_SYSCALL_PROTO_H__" >> $@
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$(Q) echo "#define __ASM_CR_SYSCALL_PROTO_H__" >> $@
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$(Q) echo "#include <compel/plugins/std/syscall-codes.h>" >> $@
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$(Q) echo "#include <compel/plugins/std/syscall-types.h>" >> $@
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$(Q) cat $< | awk '/^__NR/{print "extern long", $$3, substr($$0, index($$0,$$4)), ";"}' >> $@
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$(Q) echo "#endif /* __ASM_CR_SYSCALL_PROTO_H__ */" >> $@
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$(sys-asm): $(sys-def) $(sys-asm-common) $(sys-codes) $(sys-proto)
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$(E) " GEN " $@
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$(Q) echo "/* Autogenerated, don't edit */" > $@
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$(Q) echo "#include <compel/plugins/std/syscall-codes.h>" >> $@
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$(Q) echo "#include \"$(sys-asm-common-name)\"" >> $@
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$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", $$3, ",", $$2, ")"}' >> $@
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$(sys-exec-tbl): $(sys-def) $(sys-codes) $(sys-proto)
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$(E) " GEN " $@
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$(Q) echo "/* Autogenerated, don't edit */" > $@
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$(Q) echo "static struct syscall_exec_desc sc_exec_table[] = {" >> $@
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$(Q) cat $< | awk '/^__NR/{print "SYSCALL(", substr($$3, 5), ",", $$2, ")"}' >> $@
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$(Q) echo " { }, /* terminator */" >> $@
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$(Q) echo "};" >> $@
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$(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 += $(sys-asm) $(sys-codes) $(sys-proto) $(sys-asm-types)
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mrproper-y += $(std-headers-deps)
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