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authorMasahiro Yamada <masahiroy@kernel.org>2025-02-13 09:26:44 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2025-02-15 16:40:52 +0300
commit140332b6ed727a4ec2e5722a1ccda28b52d45771 (patch)
treee60702d352de0c101cd1a76c107c5cd4497cfcdd
parentd1d0963121769d8d16150b913fe886e48efefa51 (diff)
downloadlinux-140332b6ed727a4ec2e5722a1ccda28b52d45771.tar.xz
kbuild: fix linux-headers package build when $(CC) cannot link userspace
Since commit 5f73e7d0386d ("kbuild: refactor cross-compiling linux-headers package"), the linux-headers Debian package fails to build when $(CC) cannot build userspace applications, for example, when using toolchains installed by the 0day bot. The host programs in the linux-headers package should be rebuilt using the disto's cross-compiler, ${DEB_HOST_GNU_TYPE}-gcc instead of $(CC). Hence, the variable 'CC' must be expanded in this shell script instead of in the top-level Makefile. Commit f354fc88a72a ("kbuild: install-extmod-build: add missing quotation marks for CC variable") was not a correct fix because CC="ccache gcc" should be unrelated when rebuilding userspace tools. Fixes: 5f73e7d0386d ("kbuild: refactor cross-compiling linux-headers package") Reported-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com> Closes: https://lore.kernel.org/linux-kbuild/CAK7LNARb3xO3ptBWOMpwKcyf3=zkfhMey5H2KnB1dOmUwM79dA@mail.gmail.com/T/#t Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-rwxr-xr-xscripts/package/install-extmod-build4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/package/install-extmod-build b/scripts/package/install-extmod-build
index b724626ea0ca..2966473b4660 100755
--- a/scripts/package/install-extmod-build
+++ b/scripts/package/install-extmod-build
@@ -62,8 +62,8 @@ if [ "${CC}" != "${HOSTCC}" ]; then
#
# Clear VPATH and srcroot because the source files reside in the output
# directory.
- # shellcheck disable=SC2016 # $(MAKE), $(CC), and $(build) will be expanded by Make
- "${MAKE}" run-command KBUILD_RUN_COMMAND='+$(MAKE) HOSTCC="$(CC)" VPATH= srcroot=. $(build)='"${destdir}"/scripts
+ # shellcheck disable=SC2016 # $(MAKE) and $(build) will be expanded by Make
+ "${MAKE}" run-command KBUILD_RUN_COMMAND='+$(MAKE) HOSTCC='"${CC}"' VPATH= srcroot=. $(build)='"${destdir}"/scripts
rm -f "${destdir}/scripts/Kbuild"
fi