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kbuild: always create intermediate vmlinux.unstripped

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Generate the intermediate vmlinux.unstripped regardless of
CONFIG_ARCH_VMLINUX_NEEDS_RELOCS.

If CONFIG_ARCH_VMLINUX_NEEDS_RELOCS is unset, vmlinux.unstripped and
vmlinux are identiacal.

This simplifies the build rule, and allows to strip more sections
by adding them to remove-section-y.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/a48ca543fa2305bd17324f41606dcaed9b19f2d4.1758182101.git.legion@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
This commit is contained in:
Masahiro Yamada 2025-09-18 10:05:46 +02:00 committed by Nathan Chancellor
parent 8d18ef04f9
commit 0ce5139fd9
No known key found for this signature in database
GPG key ID: 1D6B269171C01A96
1 changed files with 22 additions and 23 deletions
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45
scripts/Makefile.vmlinux
View file

@ -9,20 +9,6 @@ include $(srctree)/scripts/Makefile.lib
targets :=
ifdef CONFIG_ARCH_VMLINUX_NEEDS_RELOCS
vmlinux-final := vmlinux.unstripped
quiet_cmd_strip_relocs = RSTRIP $@
cmd_strip_relocs = $(OBJCOPY) --remove-section='.rel*' --remove-section=!'.rel*.dyn' $< $@
vmlinux: $(vmlinux-final) FORCE
$(call if_changed,strip_relocs)
targets += vmlinux
else
vmlinux-final := vmlinux
endif
%.o: %.c FORCE
$(call if_changed_rule,cc_o_c)
@ -61,19 +47,19 @@ targets += .builtin-dtbs-list
ifdef CONFIG_GENERIC_BUILTIN_DTB
targets += .builtin-dtbs.S .builtin-dtbs.o
$(vmlinux-final): .builtin-dtbs.o
vmlinux.unstripped: .builtin-dtbs.o
endif
# vmlinux
# vmlinux.unstripped
# ---------------------------------------------------------------------------
ifdef CONFIG_MODULES
targets += .vmlinux.export.o
$(vmlinux-final): .vmlinux.export.o
vmlinux.unstripped: .vmlinux.export.o
endif
ifdef CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX
$(vmlinux-final): arch/$(SRCARCH)/tools/vmlinux.arch.o
vmlinux.unstripped: arch/$(SRCARCH)/tools/vmlinux.arch.o
arch/$(SRCARCH)/tools/vmlinux.arch.o: vmlinux.o FORCE
$(Q)$(MAKE) $(build)=arch/$(SRCARCH)/tools $@
@ -86,17 +72,30 @@ cmd_link_vmlinux = \
$< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)" "$@"; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
targets += $(vmlinux-final)
$(vmlinux-final): scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
targets += vmlinux.unstripped
vmlinux.unstripped: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
+$(call if_changed_dep,link_vmlinux)
ifdef CONFIG_DEBUG_INFO_BTF
$(vmlinux-final): $(RESOLVE_BTFIDS)
vmlinux.unstripped: $(RESOLVE_BTFIDS)
endif
ifdef CONFIG_BUILDTIME_TABLE_SORT
$(vmlinux-final): scripts/sorttable
vmlinux.unstripped: scripts/sorttable
endif
# vmlinux
# ---------------------------------------------------------------------------
remove-section-y :=
remove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel*'
quiet_cmd_strip_relocs = OBJCOPY $@
cmd_strip_relocs = $(OBJCOPY) $(addprefix --remove-section=,$(remove-section-y)) $< $@
targets += vmlinux
vmlinux: vmlinux.unstripped FORCE
$(call if_changed,strip_relocs)
# modules.builtin.ranges
# ---------------------------------------------------------------------------
ifdef CONFIG_BUILTIN_MODULE_RANGES
@ -110,7 +109,7 @@ modules.builtin.ranges: $(srctree)/scripts/generate_builtin_ranges.awk \
modules.builtin vmlinux.map vmlinux.o.map FORCE
$(call if_changed,modules_builtin_ranges)
vmlinux.map: $(vmlinux-final)
vmlinux.map: vmlinux.unstripped
@:
endif