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kbuild: Add objtool to top-level clean target

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Objtool is an integral part of the build, make sure it gets cleaned by
"make clean" and "make mrproper".

Fixes: 442f04c34a ("objtool: Add tool to perform compile-time stack metadata validation")
Reported-by: Jens Remus <jremus@linux.ibm.com>
Closes: https://lore.kernel.org/15f2af3b-be33-46fc-b972-6b8e7e0aa52e@linux.ibm.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Jens Remus <jremus@linux.ibm.com>
Link: https://patch.msgid.link/968faf2ed30fa8b3519f79f01a1ecfe7929553e5.1770759919.git.jpoimboe@kernel.org
[nathan: use Closes: instead of Link: per checkpatch.pl]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
This commit is contained in:
Josh Poimboeuf 2026-02-10 13:45:22 -08:00 • committed by Nathan Chancellor
parent df989b01b5
commit 68b4fe32d7
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GPG key ID: 1D6B269171C01A96
2 changed files with 12 additions and 1 deletions
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11
Makefile
View file

@ -1481,6 +1481,15 @@ ifneq ($(wildcard $(resolve_btfids_O)),)
$(Q)$(MAKE) -sC $(srctree)/tools/bpf/resolve_btfids O=$(resolve_btfids_O) clean
endif
PHONY += objtool_clean
objtool_O = $(abspath $(objtree))/tools/objtool
objtool_clean:
ifneq ($(wildcard $(objtool_O)),)
$(Q)$(MAKE) -sC $(abs_srctree)/tools/objtool O=$(objtool_O) srctree=$(abs_srctree) clean
endif
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
$(Q)$(MAKE) O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/
@ -1644,7 +1653,7 @@ vmlinuxclean:
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
$(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) clean)
clean: archclean vmlinuxclean resolve_btfids_clean
clean: archclean vmlinuxclean resolve_btfids_clean objtool_clean
# mrproper - Delete all generated files, including .config
#

2
tools/objtool/Makefile
View file

@ -29,6 +29,8 @@ srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
RM ?= rm -f
LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/
ifneq ($(OUTPUT),)
LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd