ohhhhhhhhhhh (exclude linux-extra-rootfs.img build artifact)

CODE/linux/tmp_lib_health.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Deep health scan of the ESP linux-rootfs.img X11 payload:
+# resolves symlinks, reports ELF validity, .text size and dynamic symbols so a
+# "smashed header" library (right size, truncated .text) is obvious.
+set -uo pipefail
+img="${1:-/mnt/d/Code/DEAICUP/Deshab/ISO/deshab-dev.img}"
+dir="${2:-/usr/local/lib/xorg-libs}"
+L=$(losetup --find --show --partscan "$img"); sleep 0.3
+M=$(mktemp -d); mount "${L}p1" "$M" || { echo "ESP mount failed"; exit 1; }
+R=$(mktemp -d); mount -o loop,ro "$M/boot/linux-rootfs.img" "$R" || { echo "rootfs mount failed"; exit 1; }
+D="$R$dir"
+echo "=== $img : $dir ($(ls "$D" 2>/dev/null | wc -l) entries)"
+printf '%-34s %-9s %9s %9s %7s %s\n' NAME KIND SIZE TEXT SYMS NOTE
+while IFS= read -r f; do
+    name=$(basename "$f")
+    if [[ -L "$f" ]]; then
+        tgt=$(readlink -f "$f" 2>/dev/null || true)
+        if [[ -z "$tgt" || ! -e "$tgt" ]]; then
+            printf '%-34s %-9s %9s %9s %7s %s\n' "$name" SYMLINK - - - "DANGLING -> $(readlink "$f")"
+            continue
+        fi
+        f="$tgt"
+    fi
+    magic=$(head -c4 "$f" 2>/dev/null | tr -d '\0')
+    if [[ "$magic" != $'\x7fELF' ]]; then
+        printf '%-34s %-9s %9s %9s %7s %s\n' "$name" NOT-ELF "$(stat -c %s "$f")" - - "$(file -b "$f" | cut -c1-30)"
+        continue
+    fi
+    sz=$(stat -c %s "$f")
+    text=$(readelf -SW "$f" 2>/dev/null | awk '$2==".text"{print strtonum("0x"$6)}')
+    syms=$(readelf -sW --dyn-syms "$f" 2>/dev/null | grep -c 'FUNC')
+    note=""
+    [[ -z "$text" ]] && { note="NO-.text"; text=0; }
+    [[ "$text" -lt 4096 && "$sz" -gt 20000 ]] && note="${note} SMALL-TEXT"
+    [[ "$syms" -lt 5 ]] && note="${note} FEW-SYMS"
+    printf '%-34s %-9s %9s %9s %7s %s\n' "$name" ELF "$sz" "$text" "$syms" "$note"
+done < <(find "$D" -maxdepth 1 \( -type f -o -type l \) | sort)
+umount "$R"; rmdir "$R"; umount "$M"; losetup -d "$L"; rmdir "$M"