From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] kbuild: error out if $(KBUILD_EXTMOD) contains % or :
Date: Thu, 14 Jul 2022 14:02:42 +0900 [thread overview]
Message-ID: <20220714050243.16411-3-masahiroy@kernel.org> (raw)
In-Reply-To: <20220714050243.16411-1-masahiroy@kernel.org>
If the directory pass given to KBUILD_EXTMOD (or M=) contains % or :,
the module fails to build.
% is used in pattern rules, and : as the separator of dependencies.
Bail out with a clearer error message.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Makefile b/Makefile
index faa4880f25f7..ecda62e27553 100644
--- a/Makefile
+++ b/Makefile
@@ -129,6 +129,9 @@ endif
$(if $(word 2, $(KBUILD_EXTMOD)), \
$(error building multiple external modules is not supported))
+$(foreach x, % :, $(if $(findstring $x, $(KBUILD_EXTMOD)), \
+ $(error module directory path cannot contain '$x')))
+
# Remove trailing slashes
ifneq ($(filter %/, $(KBUILD_EXTMOD)),)
KBUILD_EXTMOD := $(shell dirname $(KBUILD_EXTMOD).)
--
2.34.1
next prev parent reply other threads:[~2022-07-14 5:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-14 5:02 [PATCH 1/4] kbuild: rpm-pkg: fix build error when _arch is undefined Masahiro Yamada
2022-07-14 5:02 ` [PATCH 2/4] kbuild: rpm-pkg: pass 'linux' to --target option of rpmbuild Masahiro Yamada
2022-07-14 5:02 ` Masahiro Yamada [this message]
2022-07-15 9:17 ` [PATCH 3/4] kbuild: error out if $(KBUILD_EXTMOD) contains % or : Nicolas Schier
2022-07-16 15:38 ` Masahiro Yamada
2022-07-14 5:02 ` [PATCH 4/4] kbuild: error out if $(INSTALL_MOD_PATH) " Masahiro Yamada
2022-07-15 9:17 ` Nicolas Schier
2022-07-16 15:40 ` Masahiro Yamada
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