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kbuild: move vmlinux.o rule to the top Makefile
Move the build rules of vmlinux.o out of scripts/link-vmlinux.sh to clearly separate 1) pre-modpost, 2) modpost, 3) post-modpost stages. This will make further refactoring possible. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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9
Makefile
9
Makefile
@ -1118,8 +1118,6 @@ endif
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export KBUILD_VMLINUX_OBJS KBUILD_VMLINUX_LIBS
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export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
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vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)
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# Recurse until adjust_autoksyms.sh is satisfied
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PHONY += autoksyms_recursive
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ifdef CONFIG_TRIM_UNUSED_KSYMS
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@ -1142,6 +1140,9 @@ quiet_cmd_autoksyms_h = GEN $@
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$(autoksyms_h):
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$(call cmd,autoksyms_h)
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vmlinux.o: autoksyms_recursive $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS) FORCE
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.vmlinux_o
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ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
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# Final link of vmlinux with optional arch pass after final link
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@ -1149,14 +1150,14 @@ cmd_link-vmlinux = \
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$(CONFIG_SHELL) $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
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$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
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vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
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vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
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+$(call if_changed_dep,link-vmlinux)
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targets := vmlinux
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# The actual objects are generated when descending,
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# make sure no implicit rule kicks in
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$(sort $(vmlinux-deps)): . ;
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$(sort $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)): . ;
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filechk_kernel.release = \
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echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
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@ -214,9 +214,6 @@ if [ "$1" = "clean" ]; then
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exit 0
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fi
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#link vmlinux.o
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${MAKE} -f "${srctree}/scripts/Makefile.vmlinux_o"
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# modpost vmlinux.o to check for section mismatches
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${MAKE} -f "${srctree}/scripts/Makefile.modpost" MODPOST_VMLINUX=1
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