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	The dwarf.h header, which is included by
scripts/gendwarfksyms/gendwarfksyms.h, resides within the libdw-dev
package.
This portion of the code is compiled under the condition that
CONFIG_GENDWARFKSYMS is enabled.
Consequently, add libdw-dev to Build-Depends-Arch to prevent
unforeseen compilation failures.
Fix follow possible error:
  In file included from scripts/gendwarfksyms/symbols.c:6:
  scripts/gendwarfksyms/gendwarfksyms.h:6:10: fatal error: 'dwarf.h' file not found
      6 | #include <dwarf.h>
        |          ^~~~~~~~~
Fixes: f28568841a ("tools: Add gendwarfksyms")
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
Tested-by: Nicolas Schier <n.schier@avm.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
		
	
			
		
			
				
	
	
		
			273 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			273 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
#!/bin/sh
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#
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# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
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#
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# Simple script to generate a debian/ directory for a Linux kernel.
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set -eu
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is_enabled() {
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	grep -q "^$1=y" include/config/auto.conf
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}
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if_enabled_echo() {
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	if is_enabled "$1"; then
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		echo -n "$2"
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	elif [ $# -ge 3 ]; then
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		echo -n "$3"
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	fi
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}
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set_debarch() {
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	if [ "${KBUILD_DEBARCH:+set}" ]; then
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		debarch="$KBUILD_DEBARCH"
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		return
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	fi
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	# Attempt to find the correct Debian architecture
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	case "$UTS_MACHINE" in
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	i386|alpha|m68k|riscv*)
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		debarch="$UTS_MACHINE" ;;
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	x86_64)
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		debarch=amd64 ;;
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	sparc*)
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		debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
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	s390*)
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		debarch=s390x ;;
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	ppc*)
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		if is_enabled CONFIG_64BIT; then
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			debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
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		else
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			debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
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		fi
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		;;
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	parisc*)
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		debarch=hppa ;;
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	mips*)
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		if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then
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			debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el
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		elif is_enabled CONFIG_CPU_MIPSR6; then
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			debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6
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		else
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			debarch=mips
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		fi
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		;;
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	aarch64|arm64)
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		debarch=arm64 ;;
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	arm*)
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		if is_enabled CONFIG_AEABI; then
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			debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
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		else
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			debarch=arm
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		fi
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		;;
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	openrisc)
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		debarch=or1k ;;
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	sh)
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		if is_enabled CONFIG_CPU_SH3; then
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			debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
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		elif is_enabled CONFIG_CPU_SH4; then
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			debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
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		fi
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		;;
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	um)
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		if is_enabled CONFIG_64BIT; then
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			debarch=amd64
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		else
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			debarch=i386
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		fi
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		;;
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	loongarch64)
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		debarch=loong64 ;;
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	esac
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	if [ -z "$debarch" ]; then
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		debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
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		echo "" >&2
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		echo "** ** **  WARNING  ** ** **" >&2
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		echo "" >&2
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		echo "Your architecture doesn't have its equivalent" >&2
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		echo "Debian userspace architecture defined!" >&2
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		echo "Falling back to the current host architecture ($debarch)." >&2
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		echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
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		echo "" >&2
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	fi
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}
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# Create debian/source/ if it is a source package build
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gen_source ()
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{
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	mkdir -p debian/source
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	echo "3.0 (quilt)" > debian/source/format
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	{
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		echo "diff-ignore"
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		echo "extend-diff-ignore = .*"
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	} > debian/source/local-options
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	# Add .config as a patch
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	mkdir -p debian/patches
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	{
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		echo "Subject: Add .config"
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		echo "Author: ${maintainer}"
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		echo
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		echo "--- /dev/null"
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		echo "+++ linux/.config"
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		diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
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	} > debian/patches/config.patch
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	echo config.patch > debian/patches/series
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	"${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch
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	if [ -s debian/patches/diff.patch ]; then
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		sed -i "
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			1iSubject: Add local diff
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			1iAuthor: ${maintainer}
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			1i
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		" debian/patches/diff.patch
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		echo diff.patch >> debian/patches/series
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	else
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		rm -f debian/patches/diff.patch
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	fi
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}
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rm -rf debian
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mkdir debian
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user=${KBUILD_BUILD_USER:-$(id -nu)}
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name=${DEBFULLNAME:-${user}}
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if [ "${DEBEMAIL:+set}" ]; then
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	email=${DEBEMAIL}
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else
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	buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
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	email="${user}@${buildhost}"
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fi
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maintainer="${name} <${email}>"
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while [ $# -gt 0 ]; do
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	case "$1" in
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	--need-source)
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		gen_source
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		shift
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		;;
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	*)
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		break
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		;;
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	esac
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done
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# Some variables and settings used throughout the script
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if [ "${KDEB_PKGVERSION:+set}" ]; then
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	packageversion=$KDEB_PKGVERSION
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else
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	upstream_version=$("${srctree}/scripts/setlocalversion" --no-local "${srctree}" | sed 's/-\(rc[1-9]\)/~\1/')
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	debian_revision=$("${srctree}/scripts/build-version")
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	packageversion=${upstream_version}-${debian_revision}
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fi
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sourcename=${KDEB_SOURCENAME:-linux-upstream}
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if [ "$ARCH" = "um" ] ; then
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	packagename=user-mode-linux
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else
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	packagename=linux-image
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fi
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debarch=
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set_debarch
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# Try to determine distribution
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if [ "${KDEB_CHANGELOG_DIST:+set}" ]; then
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        distribution=$KDEB_CHANGELOG_DIST
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# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
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elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
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        : # nothing to do in this case
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else
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        distribution="unstable"
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        echo >&2 "Using default distribution of 'unstable' in the changelog"
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        echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
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fi
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echo $debarch > debian/arch
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host_gnu=$(dpkg-architecture -a "${debarch}" -q DEB_HOST_GNU_TYPE | sed 's/_/-/g')
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# Generate a simple changelog template
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cat <<EOF > debian/changelog
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$sourcename ($packageversion) $distribution; urgency=low
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  * Custom built Linux kernel.
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 -- $maintainer  $(date -R)
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EOF
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# Generate a control file
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cat <<EOF > debian/control
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Source: $sourcename
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Section: kernel
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Priority: optional
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Maintainer: $maintainer
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Rules-Requires-Root: no
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Build-Depends: debhelper-compat (= 12)
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Build-Depends-Arch: bc, bison, flex,
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 gcc-${host_gnu} <!pkg.${sourcename}.nokernelheaders>,
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 kmod, libdw-dev:native, libelf-dev:native,
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 libssl-dev:native, libssl-dev <!pkg.${sourcename}.nokernelheaders>,
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 python3:native, rsync
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Homepage: https://www.kernel.org/
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Package: $packagename-${KERNELRELEASE}
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Architecture: $debarch
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Description: Linux kernel, version ${KERNELRELEASE}
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 This package contains the Linux kernel, modules and corresponding other
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 files, version: ${KERNELRELEASE}.
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EOF
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if [ "${SRCARCH}" != um ]; then
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cat <<EOF >> debian/control
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Package: linux-libc-dev
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Section: devel
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Provides: linux-kernel-headers
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Architecture: $debarch
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Description: Linux support headers for userspace development
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 This package provides userspaces headers from the Linux kernel.  These headers
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 are used by the installed headers for GNU glibc and other system libraries.
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Multi-Arch: same
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EOF
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if is_enabled CONFIG_MODULES; then
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cat <<EOF >> debian/control
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Package: linux-headers-${KERNELRELEASE}
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Architecture: $debarch
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Build-Profiles: <!pkg.${sourcename}.nokernelheaders>
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Description: Linux kernel headers for ${KERNELRELEASE} on $debarch
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 This package provides kernel header files for ${KERNELRELEASE} on $debarch
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 .
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 This is useful for people who need to build external modules
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EOF
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fi
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fi
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if is_enabled CONFIG_DEBUG_INFO; then
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cat <<EOF >> debian/control
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Package: linux-image-${KERNELRELEASE}-dbg
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Section: debug
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Architecture: $debarch
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Build-Profiles: <!pkg.${sourcename}.nokerneldbg>
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Description: Linux kernel debugging symbols for ${KERNELRELEASE}
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 This package will come in handy if you need to debug the kernel. It provides
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 all the necessary debug symbols for the kernel and its modules.
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EOF
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fi
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cat <<EOF > debian/rules.vars
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ARCH := ${ARCH}
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KERNELRELEASE := ${KERNELRELEASE}
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EOF
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cp "${srctree}/scripts/package/debian/copyright" debian/
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cp "${srctree}/scripts/package/debian/rules" debian/
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exit 0
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