From 6ced0fb48abb6041ef7378e881ded65626121b6b Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sun, 15 Jul 2007 07:16:28 +0000
Subject: split up the debug/sources steps as proposed by swegener and give the
 whole file a cleanup

svn path=/main/trunk/; revision=7267
---
 bin/prepstrip | 114 ++++++++++++++++++++++++++++++++--------------------------
 1 file changed, 64 insertions(+), 50 deletions(-)

(limited to 'bin')

diff --git a/bin/prepstrip b/bin/prepstrip
index bce39689..c5b23d3a 100755
--- a/bin/prepstrip
+++ b/bin/prepstrip
@@ -5,11 +5,13 @@
 
 source "${PORTAGE_BIN_PATH:-/usr/lib/portage/bin}"/isolated-functions.sh
 
-unset NOSTRIP
-if hasq nostrip ${FEATURES} ${RESTRICT} || \
+banner=false
+SKIP_STRIP=false
+if hasq nostrip ${FEATURES} || \
    hasq strip ${RESTRICT}
 then
-	NOSTRIP=1
+	SKIP_STRIP=true
+	banner=true
 	hasq installsources ${FEATURES} || exit 0
 fi
 
@@ -23,43 +25,44 @@ type -P -- ${OBJCOPY} > /dev/null || OBJCOPY=objcopy
 export SAFE_STRIP_FLAGS="--strip-unneeded"
 export PORTAGE_STRIP_FLAGS=${PORTAGE_STRIP_FLAGS-${SAFE_STRIP_FLAGS} -R .comment}
 
-banner=1
+save_elf_sources() {
+	hasq installsources ${FEATURES} || return 0
+	type -P debugedit >/dev/null || return 0
 
-save_elf_debug() {
 	local x=$1
-	local y="${D}usr/lib/debug/${x:${#D}}.debug"
-
-	if hasq installsources ${FEATURES} && [ -x /usr/bin/debugedit ] ; then
-		local sources_dir=/usr/src/debug/${CATEGORY}/${PF}
-		debugedit -b "${WORKDIR}" -d "${sources_dir}" \
-			-l "${T}"/debug.sources "${x}"
-		if [[ -s ${T}/debug.sources ]] ; then 
-			[[ -d ${D}${sources_dir} ]] || mkdir -p "${D}${sources_dir}"
-			grep -zv '/<built-in>$' "${T}"/debug.sources | \
-				(cd "${WORKDIR}"; LANG=C sort -z -u | \
-				rsync -rtL0 --files-from=- "${WORKDIR}/" "${D}${sources_dir}/" )
-		fi
+	local sources_dir=/usr/src/debug/${CATEGORY}/${PF}
+	debugedit -b "${WORKDIR}" -d "${sources_dir}" \
+		-l "${T}"/debug.sources "${x}"
+	if [[ -s ${T}/debug.sources ]] ; then 
+		[[ -d ${D}${sources_dir} ]] || mkdir -p "${D}${sources_dir}"
+		grep -zv '/<built-in>$' "${T}"/debug.sources | \
+			(cd "${WORKDIR}"; LANG=C sort -z -u | \
+			rsync -rtL0 --files-from=- "${WORKDIR}/" "${D}${sources_dir}/" )
 	fi
-
+}
+ 
+save_elf_debug() {
 	hasq splitdebug ${FEATURES} || return 0
-	[[ -z "${NOSTRIP}" ]] || return 0
 
-	# dont save debug info twice.
-	[[ ${x:7} == ".debug" ]] && return 0
+	local x=$1
+	local y="${D}usr/lib/debug/${x:${#D}}.debug"
+
+	# dont save debug info twice
+	[[ ${x} == *".debug" ]] && return 0
 
 	mkdir -p $(dirname "${y}")
 	${OBJCOPY} --only-keep-debug "${x}" "${y}"
 	${OBJCOPY} --add-gnu-debuglink="${y}" "${x}"
-	[ -g "${x}" ] && chmod go-r "${y}"
-	[ -u "${x}" ] && chmod go-r "${y}"
+	[[ -g ${x} ]] && chmod go-r "${y}"
+	[[ -u ${x} ]] && chmod go-r "${y}"
 	chmod a-x,o-w "${y}"
 }
 
 # The existance of the section .symtab tells us that a binary is stripped.
 # We want to log already stripped binaries, as this may be a QA violation.
 # They prevent us from getting the splitdebug data.
-f="$(scanelf -yqRBF '#k%F' -k '!.symtab' "$@")"
-if [[ -n "${f}" ]] ; then
+f=$(scanelf -yqRBF '#k%F' -k '!.symtab' "$@")
+if [[ -n ${f} ]] ; then
 	vecho -e "\a\n"
 	eqawarn "QA Notice: Pre-stripped files found:"
 	eqawarn "${f}"
@@ -71,42 +74,53 @@ for x in \
 	$(scanelf -yqRBF '#k%F' -k '.symtab' "$@") \
 	$(find "$@" -type f -name '*.a')
 do
-	if [[ ${banner} -eq 1 ]] ; then
-		[[ -z ${NOSTRIP} ]] && vecho "strip: ${STRIP} ${PORTAGE_STRIP_FLAGS}"
-		banner=0
+	if ! ${banner} ; then
+		vecho "strip: ${STRIP} ${PORTAGE_STRIP_FLAGS}"
+		banner=true
 	fi
 
 	f=$(file "${x}") || continue
 	[[ -z ${f} ]] && continue
 
-	# The noglob funk is to support STRIP_MASK="/*/booga" and to keep
-	#  the for loop from expanding the globs.
-	# The eval echo is to support STRIP_MASK="/*/{booga,bar}" sex.
-	set -o noglob
-	stripitbaby=1
-	for m in $(eval echo ${STRIP_MASK}) ; do
-		[[ ${x} == ${m} ]] && stripitbaby=0 && break
-	done
-	set +o noglob
+	if ! ${SKIP_STRIP} ; then
+		# The noglob funk is to support STRIP_MASK="/*/booga" and to keep
+		#  the for loop from expanding the globs.
+		# The eval echo is to support STRIP_MASK="/*/{booga,bar}" sex.
+		set -o noglob
+		strip_this=true
+		for m in $(eval echo ${STRIP_MASK}) ; do
+			[[ ${x} == ${m} ]] && strip_this=false && break
+		done
+		set +o noglob
+	else
+		strip_this=false
+	fi
+
+	# only split debug info for final linked objects
+	# or kernel modules as debuginfo for intermediatary
+	# files (think crt*.o from gcc/glibc) is useless and
+	# actually causes problems.  install sources for all
+	# elf types though cause that stuff is good.
 
 	if [[ ${f} == *"current ar archive"* ]] ; then
 		vecho "   ${x:${#D}}"
-		[[ -n ${NOSTRIP} ]] && continue
-		[[ ${stripitbaby} -eq 1 ]] && ${STRIP} -g "${x}"
-	elif [[ ${f} == *"SB executable"* || ${f} == *"SB shared object"* || ${f} == *"SB relocatable"* ]] ; then
+		if ${strip_this} ; then
+			# hmm, can we split debug/sources for .a ?
+			${STRIP} -g "${x}"
+		fi
+	elif [[ ${f} == *"SB executable"* || ${f} == *"SB shared object"* ]] ; then
 		vecho "   ${x:${#D}}"
-		if [[ ${f} != *"SB relocatable"* ]] || [[ ${x} == *.ko ]] ; then
-			# only split debug info for final linked objects
-			# or kernel modules as debuginfo for intermediatary
-			# files (think crt*.o from gcc/glibc) is useless and
-			# actually causes problems
+		save_elf_sources "${x}"
+		if ${strip_this} ; then
 			save_elf_debug "${x}"
+			${STRIP} ${PORTAGE_STRIP_FLAGS} "${x}"
 		fi
-		[[ -n ${NOSTRIP} ]] && continue
-		if [[ ${stripitbaby} -eq 1 ]] ; then
-			[[ ${f} == *"SB relocatable"* ]] \
-				&& ${STRIP} ${SAFE_STRIP_FLAGS} "${x}" \
-				|| ${STRIP} ${PORTAGE_STRIP_FLAGS} "${x}"
+	elif [[ ${f} == *"SB relocatable"* ]] ; then
+		vecho "   ${x:${#D}}"
+		save_elf_sources "${x}"
+		if ${strip_this} ; then
+			[[ ${x} == *.ko ]] && save_elf_debug "${x}"
+			${STRIP} ${SAFE_STRIP_FLAGS} "${x}"
 		fi
 	fi
 done
-- 
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