From: Josh Poimboeuf <jpoimboe@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Nathan Chancellor <nathan@kernel.org>,
Nicolas Schier <nsc@kernel.org>,
linux-kbuild@vger.kernel.org, Jens Remus <jremus@linux.ibm.com>
Subject: [PATCH] kbuild: Add objtool to top-level clean target
Date: Tue, 10 Feb 2026 13:45:22 -0800 [thread overview]
Message-ID: <968faf2ed30fa8b3519f79f01a1ecfe7929553e5.1770759919.git.jpoimboe@kernel.org> (raw)
Objtool is an integral part of the build, make sure it gets cleaned by
"make clean" and "make mrproper".
Fixes: 442f04c34a1a ("objtool: Add tool to perform compile-time stack metadata validation")
Reported-by: Jens Remus <jremus@linux.ibm.com>
Link: https://lore.kernel.org/15f2af3b-be33-46fc-b972-6b8e7e0aa52e@linux.ibm.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
Makefile | 11 ++++++++++-
tools/objtool/Makefile | 2 ++
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index d3a8482bdbd0..ed850044491d 100644
--- a/Makefile
+++ b/Makefile
@@ -1474,6 +1474,15 @@ 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/
@@ -1637,7 +1646,7 @@ 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
#
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index a40f30232929..6964175abdfd 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -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
--
2.53.0
next reply other threads:[~2026-02-10 21:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-10 21:45 Josh Poimboeuf [this message]
2026-02-10 22:17 ` Nathan Chancellor
2026-02-11 0:08 ` Josh Poimboeuf
2026-02-11 9:39 ` Jens Remus
2026-02-18 20:48 ` Nathan Chancellor
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