kbuild: rpm-pkg: move source components to rpmbuild/SOURCES

Prepare to add more files to the source RPM.

Also, fix the build error when KCONFIG_CONFIG is set:
  error: Bad file: ./.config: No such file or directory
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

.gitignore

@@ -78,6 +78,7 @@ modules.order
 # RPM spec file (make rpm-pkg)
 #
 /*.spec
+/rpmbuild/
 
 #
 # Debian directory (make deb-pkg)

Makefile

@@ -1605,7 +1605,7 @@ MRPROPER_FILES += include/config include/generated          \
 		  certs/signing_key.pem \
 		  certs/x509.genkey \
 		  vmlinux-gdb.py \
-		  *.spec \
+		  *.spec rpmbuild \
 		  rust/libmacros.so
 
 # clean - Delete most, but leave enough to build external modules

scripts/Makefile.package

@@ -89,7 +89,7 @@ PHONY += srcrpm-pkg
 srcrpm-pkg: linux.tar.gz
 	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
 	+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE)-linux -bs kernel.spec \
-	--define='_smp_mflags %{nil}' --define='_sourcedir .' --define='_srcrpmdir .'
+	--define='_smp_mflags %{nil}' --define='_sourcedir rpmbuild/SOURCES' --define='_srcrpmdir .'
 
 # binrpm-pkg
 # ---------------------------------------------------------------------------

scripts/package/mkspec

@@ -15,15 +15,19 @@ if [ "$1" = prebuilt ]; then
 	MAKE="$MAKE -f $srctree/Makefile"
 else
 	S=
+
+	mkdir -p rpmbuild/SOURCES
+	cp linux.tar.gz rpmbuild/SOURCES
+	cp "${KCONFIG_CONFIG}" rpmbuild/SOURCES/config
 fi
 
-if grep -q CONFIG_MODULES=y .config; then
+if grep -q CONFIG_MODULES=y include/config/auto.conf; then
 	M=
 else
 	M=DEL
 fi
 
-if grep -q CONFIG_DRM=y .config; then
+if grep -q CONFIG_DRM=y include/config/auto.conf; then
 	PROVIDES=kernel-drm
 fi
 
@@ -48,7 +52,7 @@ sed -e '/^DEL/d' -e 's/^\t*//' <<EOF
 	Vendor: The Linux Community
 	URL: https://www.kernel.org
 $S	Source0: linux.tar.gz
-$S	Source1: .config
+$S	Source1: config
 	Provides: $PROVIDES
 $S	BuildRequires: bc binutils bison dwarves
 $S	BuildRequires: (elfutils-libelf-devel or libelf-devel) flex
@@ -85,7 +89,7 @@ $S$M	against the $__KERNELRELEASE kernel package.
 $S$M
 $S	%prep
 $S	%setup -q -n linux
-$S	cp %{SOURCE1} .
+$S	cp %{SOURCE1} .config
 $S
 $S	%build
 $S	$MAKE %{?_smp_mflags} KERNELRELEASE=$KERNELRELEASE KBUILD_BUILD_VERSION=%{release}