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MaxsTechReview
ca352bf225
RPCS3's AppImage could not start: its own runtime unpacks the image with a dwarfsextract it runs from a memfd, which Android refuses (EACCES), and it has no other way to run it. Emulator AppImages for arm64 now start through the shipped uruntime, which falls back to a file in /tmp. RPCS3 then stopped with "Null object" in utils::shm (errno 13): it reads /proc/sys/vm/overcommit_memory to pick memfd for guest memory, and apps cannot read it. The guest now gets the kernel's default policy (0) there when the real file is unreadable, like file-max.
50 lines
2.0 KiB
Python
50 lines
2.0 KiB
Python
import os
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import re
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import shutil
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import subprocess
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import tempfile
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import unittest
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from pathlib import Path
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SESSION = Path(__file__).resolve().parents[1] / "linuxfs/overlay/usr/local/bin/droiddeck-session"
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URUNTIME = "/usr/local/lib/droiddeck/uruntime"
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def target_case():
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match = re.search(r"^ case \$\{target,,\} in\n.*?^ esac\n", SESSION.read_text(), re.M | re.S)
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return match.group(0)
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class SessionAppImageTest(unittest.TestCase):
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def setUp(self):
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self.dir = Path(tempfile.mkdtemp())
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self.addCleanup(shutil.rmtree, self.dir, True)
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self.image = self.dir / "rpcs3.AppImage"
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self.image.write_bytes(b"\x7fELF")
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self.uruntime = self.dir / "uruntime"
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self.uruntime.write_text("#!/bin/sh\n")
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self.uruntime.chmod(0o755)
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def launch(self, fex=()):
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script = ("set -u\n"
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"run_program() { printf '%%s\\n' \"TARGET=${TARGET_APPIMAGE:-} EXTRACT=${APPIMAGE_EXTRACT_AND_RUN:-}\" \"$@\"; exit 0; }\n"
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"target=%s\nfex=(%s)\nset -- --no-gui\n" % (self.image, " ".join(fex))
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+ target_case().replace(URUNTIME, str(self.uruntime)))
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env = {k: v for k, v in os.environ.items() if k not in ("TARGET_APPIMAGE", "APPIMAGE_EXTRACT_AND_RUN")}
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return subprocess.run(["bash", "-c", script], env=env, capture_output=True, text=True, timeout=30).stdout.splitlines()
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def test_an_arm64_image_runs_through_the_shipped_runtime(self):
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self.assertEqual(["TARGET=%s EXTRACT=1" % self.image, str(self.uruntime), "--no-gui"], self.launch())
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def test_without_the_shipped_runtime_the_image_runs_itself(self):
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self.uruntime.unlink()
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self.assertEqual(["TARGET= EXTRACT=1", str(self.image), "--no-gui"], self.launch())
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def test_an_x86_image_still_starts_under_fex(self):
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fex = ("/usr/local/bin/droiddeck-fex", "run", "--mode", "on", "--")
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self.assertEqual(["TARGET= EXTRACT=1", *fex, str(self.image), "--no-gui"], self.launch(fex))
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if __name__ == "__main__":
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unittest.main()
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