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makepkg: strip debugging symbols into separate folder

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When using the "debug" option in combination with "strip", move the
debugging symbols into a separate directory ($pkgdir-debug/usr/lib/debug)
suitable for creating a package from.

Create hardlinks between debugging symbols of hardlinked files and add
symlinks in the .build_id directory if the binary has a build ID.

Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Allan McRae 2012-09-23 23:23:26 +10:00
parent a53fd79632
commit bd4ff4a377
1 changed files with 50 additions and 0 deletions
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50
scripts/makepkg.sh.in
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@ -1426,8 +1426,53 @@ run_package() {
run_function_safe "$pkgfunc" run_function_safe "$pkgfunc"
} }
build_id() {
LANG=C readelf -n $1 | sed -n '/Build ID/ { s/.*: //p; q; }'
}
strip_file() { strip_file() {
local binary=$1; shift local binary=$1; shift
if check_option "debug" "y"; then
local bid=$(build_id "$binary")
# has this file already been stripped
if [[ -n "$bid" ]]; then
if [[ -f "$pkgdir-debug"/usr/lib/debug/.build_id/${bid:0:2}/${bid:2}.debug ]]; then
return
fi
elif [[ -f "$pkgdir-debug/usr/lib/debug/$binary.debug" ]]; then
return
fi
mkdir -p "$pkgdir-debug/usr/lib/debug/${binary%/*}"
objcopy --only-keep-debug "$binary" "$pkgdir-debug/usr/lib/debug/$binary.debug"
objcopy --add-gnu-debuglink="$pkgdir-debug/usr/lib/debug/${binary#/}.debug" "$binary"
# create any needed hardlinks
while read -d '' file ; do
if [[ "${binary}" -ef "${file}" &&
! -f "$pkgdir-debug/usr/lib/debug/${file}.debug" ]]; then
mkdir -p "$pkgdir-debug/usr/lib/debug/${file%/*}"
ln "$pkgdir-debug/usr/lib/debug/${binary}.debug" \
"$pkgdir-debug/usr/lib/debug/${file}.debug"
fi
done < <(find . -type f -perm -u+w -print0 2>/dev/null)
if [[ -n "$bid" ]]; then
local target
mkdir -p "$pkgdir-debug/usr/lib/debug/.build_id/${bid:0:2}"
target="../../../../../${binary#./}"
target="${target/..\/..\/usr\/lib\/}"
target="${target/..\/usr\/}"
ln -s "$target" "$pkgdir-debug/usr/lib/debug/.build_id/${bid:0:2}/${bid:2}"
target="../../${binary#./}.debug"
ln -s "$target" "$pkgdir-debug/usr/lib/debug/.build_id/${bid:0:2}/${bid:2}.debug"
fi
fi
strip $@ "$binary" strip $@ "$binary"
} }
@ -1485,6 +1530,11 @@ tidy_install() {
# make sure library stripping variables are defined to prevent excess stripping # make sure library stripping variables are defined to prevent excess stripping
[[ -z ${STRIP_SHARED+x} ]] && STRIP_SHARED="-S" [[ -z ${STRIP_SHARED+x} ]] && STRIP_SHARED="-S"
[[ -z ${STRIP_STATIC+x} ]] && STRIP_STATIC="-S" [[ -z ${STRIP_STATIC+x} ]] && STRIP_STATIC="-S"
if check_option "debug" "y"; then
mkdir -p $pkgdir-debug/usr/lib/debug
fi
local binary strip_flags local binary strip_flags
find . -type f -perm -u+w -print0 2>/dev/null | while read -d '' binary ; do find . -type f -perm -u+w -print0 2>/dev/null | while read -d '' binary ; do
case "$(file -bi "$binary")" in case "$(file -bi "$binary")" in