Add breakpad_extract_symbols_appimage.py (#1501)

scripts/breakpad_extract_symbols_appimage.py

@@ -0,0 +1,55 @@
+
+import sys
+import os
+import subprocess
+import re
+import atexit
+
+if len(sys.argv) != 3:
+	print(f"usage: {sys.argv[0]} [Cutter.AppImage] [symbols dir]")
+	exit(1)
+
+root = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+
+def store_syms(syms, syms_dir):
+	m = re.match(b"MODULE ([^ ]+) ([^ ]+) ([^ ]+) (.+)\n.*", syms)
+	if m is None:
+		print("Invalid dump_syms output")
+		return
+	
+	(modos, modarch, modhash, modname) = m.groups()
+	modname = modname.decode("utf-8")
+	modhash = modhash.decode("utf-8")
+	symdir = os.path.join(syms_dir, modname, modhash)
+	symfile = f"{modname}.sym"
+	os.makedirs(symdir)
+	symfile_path = os.path.join(symdir, symfile)
+	with open(symfile_path, "wb") as f:
+		f.write(syms)
+
+	print(symfile_path)
+
+def dump_syms(binary, syms_dir):
+	dump_syms_exec = os.path.join(root, "breakpad/src/tools/linux/dump_syms/dump_syms")
+	syms = subprocess.run([dump_syms_exec, binary], capture_output=True).stdout
+	store_syms(syms, syms_dir)
+
+appimage = sys.argv[1]
+syms_dst = sys.argv[2]
+
+# stdbuf workaround is needed before https://github.com/AppImage/AppImageKit/commit/e827baa719f5444aeef7202fe1f71c97d4200dde
+appimage_p = subprocess.Popen(["stdbuf", "-oL", appimage, "--appimage-mount"], stdout=subprocess.PIPE)
+def kill_appimage():
+	appimage_p.kill()
+atexit.register(kill_appimage)
+mount_dir = appimage_p.stdout.readline().strip().decode("utf-8")
+
+binaries = [ os.path.join(mount_dir, "usr/bin/Cutter") ]
+for f in os.scandir(os.path.join(mount_dir, "usr/lib")):
+	if f.is_dir() or f.is_symlink():
+		continue
+	binaries.append(f.path)
+
+for b in binaries:
+	dump_syms(b, syms_dst)
+