On Mon, Dec 05, 2016 at 03:02:10PM +1000, Allan McRae wrote:
> Debug packages are fairly useless currently because the soucre files needed
> for stepping through code etc are not packaged with them. This patch adds the
> needed source files to the debug package and adjusts the debug info to look at
> the /usr/src/debug/ directory for them rather than the build location. This
> requires using the "debugedit" program which is provided as part of the RPM
> sources.
...will pacman provide a copy of debugedit?
> Signed-off-by: Allan McRae <al...@archlinux.org>
> ---
> scripts/libmakepkg/tidy/strip.sh.in | 21 ++++++++++++++++++++-
> 1 file changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/libmakepkg/tidy/strip.sh.in
> b/scripts/libmakepkg/tidy/strip.sh.in
> index 9baed9f..ff75cb4 100644
> --- a/scripts/libmakepkg/tidy/strip.sh.in
> +++ b/scripts/libmakepkg/tidy/strip.sh.in
> @@ -35,6 +35,11 @@ build_id() {
> LANG=C readelf -n $1 | sed -n '/Build ID/ { s/.*: //p; q; }'
> }
>
> +source_files() {
> + LANG=C readelf $1 --debug-dump | \
"$1"
> + awk '/DW_AT_name +:/{name=$8}/DW_AT_comp_dir +:/{print $8 "/"
> name}'
> +}
> +
> strip_file() {
> local binary=$1; shift
>
> @@ -50,6 +55,18 @@ strip_file() {
> return
> fi
>
> + # copy source files to debug directory
> + local f t
> + for f in $(source_files "$binary"); do
http://mywiki.wooledge.org/DontReadLinesWithFor
while read -r f; do
...
done < <(source_files "$binary")
> + t=${f/$srcdir/$dbgsrc}
t=${f/"$srcdir"/$dbgsrc}
> + mkdir -p "${t%/*}"
> + cp "$f" "$t"
cp -- "$f" "$t"
> + done
> +
> + # adjust debug symbols to point at sources
> + debugedit -b "${srcdir}" -d /usr/src/debug/ -i "$binary" &>
> /dev/null
> +
> + # copy debug symbols to debug directory
> mkdir -p "$dbgdir/${binary%/*}"
> objcopy --only-keep-debug "$binary" "$dbgdir/$binary.debug"
> objcopy --add-gnu-debuglink="$dbgdir/${binary#/}.debug"
> "$binary"
> @@ -88,8 +105,10 @@ tidy_strip() {
> [[ -z ${STRIP_STATIC+x} ]] && STRIP_STATIC="-S"
>
> if check_option "debug" "y"; then
> +
>
> dbgdir="$pkgdirbase/$pkgbase-@DEBUGSUFFIX@/usr/lib/debug"
> - mkdir -p "$dbgdir"
> +
> dbgsrc="$pkgdirbase/$pkgbase-@DEBUGSUFFIX@/usr/src/debug"
> + mkdir -p "$dbgdir" "$dbgsrc"
> fi
>
> local binary strip_flags
> --
> 2.10.2
