[system/kjar] /: Rip out debug stuff.

Git commit 6bac4331c3257386879637797323866a05e6303a by Hadi Chokr.
Committed on 03/08/2026 at 10:50.
Pushed by silverhadch into branch 'master'.

Rip out debug stuff.

Signed-off-by: Hadi Chokr <[email protected]>

M  +9    -1    .flatpak-manifest.json
A  +99   -0    strip-jmods.sh

https://invent.kde.org/system/kjar/-/commit/6bac4331c3257386879637797323866a05e6303a

diff --git a/.flatpak-manifest.json b/.flatpak-manifest.json
index 2308b49..0961aa5 100644
--- a/.flatpak-manifest.json
+++ b/.flatpak-manifest.json
@@ -26,7 +26,15 @@
       "name": "openjdk",
       "buildsystem": "simple",
       "build-commands": [
-        "/usr/lib/sdk/openjdk25/installjdk.sh"
+        "/usr/lib/sdk/openjdk25/installjdk.sh",
+        "rm -f /app/jdk/lib/src.zip",
+        "sh strip-jmods.sh"
+      ],
+      "sources": [
+        {
+          "type": "file",
+          "path": "strip-jmods.sh"
+        }
       ]
     },
     {
diff --git a/strip-jmods.sh b/strip-jmods.sh
new file mode 100644
index 0000000..541a2ad
--- /dev/null
+++ b/strip-jmods.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+# SPDX-FileCopyrightText: 2026 Hadi Chokr <[email protected]>
+#
+# Discard native debug symbols from /app/jdk/jmods.
+#
+
+set -e
+
+JDK=/app/jdk
+JMOD="$JDK/bin/jmod"
+MODULES="${1:-java.base}"
+
+command -v objcopy >/dev/null || { echo "strip-jmods: objcopy not found"; exit 1; }
+[ -d "$JDK/jmods" ] || { echo "strip-jmods: $JDK/jmods missing"; exit 1; }
+[ -x "$JMOD" ] || { echo "strip-jmods: $JMOD missing"; exit 1; }
+
+WORK=$(mktemp -d)
+trap 'rm -rf "$WORK"' EXIT
+
+before=$(du -sk "$JDK/jmods" | cut -f1)
+touched_non_base=0
+
+for name in $MODULES; do
+    jm="$JDK/jmods/$name.jmod"
+    if [ ! -f "$jm" ]; then
+        echo "strip-jmods: ERROR: $jm not found"
+        exit 1
+    fi
+    [ "$name" = "java.base" ] || touched_non_base=1
+
+    kb=$(du -k "$jm" | cut -f1)
+    d="$WORK/$name"
+
+    # Per-module invariant: version, target platform, main class, requires and
+    # exports must all survive the round-trip.
+    "$JMOD" describe "$jm" > "$WORK/$name.before"
+
+    "$JMOD" extract --dir "$d" "$jm"
+
+    # --strip-debug
+    find "$d" -type f \( -name '*.so' -o -name '*.so.*' \) \
+        -exec objcopy --strip-debug {} \; 2>/dev/null || true
+    [ -d "$d/bin" ] && find "$d/bin" -type f \
+        -exec objcopy --strip-debug {} \; 2>/dev/null || true
+
+    set -- create
+    [ -d "$d/classes" ] && set -- "$@" --class-path    "$d/classes"
+    [ -d "$d/bin" ]     && set -- "$@" --cmds          "$d/bin"
+    [ -d "$d/lib" ]     && set -- "$@" --libs          "$d/lib"
+    [ -d "$d/conf" ]    && set -- "$@" --config        "$d/conf"
+    [ -d "$d/include" ] && set -- "$@" --header-files  "$d/include"
+    [ -d "$d/legal" ]   && set -- "$@" --legal-notices "$d/legal"
+    [ -d "$d/man" ]     && set -- "$@" --man-pages     "$d/man"
+
+    rm -f "$jm"
+    "$JMOD" "$@" "$jm"
+    rm -rf "$d"
+
+    "$JMOD" describe "$jm" > "$WORK/$name.after"
+    if ! diff -q "$WORK/$name.before" "$WORK/$name.after" >/dev/null; then
+        echo "strip-jmods: ERROR: descriptor changed for $name"
+        diff "$WORK/$name.before" "$WORK/$name.after" || true
+        exit 1
+    fi
+
+    printf 'strip-jmods:   %-22s %5s MB -> %5s MB\n' "$name" \
+        "$((kb / 1024))" "$(( $(du -k "$jm" | cut -f1) / 1024 ))"
+done
+
+if [ "$touched_non_base" -eq 1 ]; then
+    echo "strip-jmods: recomputing recorded module hashes"
+    if ! "$JMOD" hash --module-path "$JDK/jmods" --hash-modules '.*'; then
+        echo "strip-jmods: ERROR: jmod hash failed -- see the note at the top"
+        echo "strip-jmods:        of this script; rerun with java.base only."
+        exit 1
+    fi
+fi
+
+after=$(du -sk "$JDK/jmods" | cut -f1)
+echo "strip-jmods: total $((before / 1024)) MB -> $((after / 1024)) MB"
+
+# Smoke test
+echo "strip-jmods: verifying jlink against the rewritten jmods"
+
+if ! "$JDK/bin/jlink" --module-path "$JDK/jmods" \
+        --add-modules java.base,java.desktop,java.xml,jdk.compiler \
+        --output "$WORK/verify"; then
+    echo "strip-jmods: ERROR: jlink failed against the rewritten jmods"
+    exit 1
+fi
+
+if ! "$WORK/verify/bin/java" -version; then
+    echo "strip-jmods: ERROR: linked runtime does not run"
+    exit 1
+fi
+
+rm -rf "$WORK/verify"
+echo "strip-jmods: OK"