74e9318689
This changelist makes the GDB-stub actually execute GDB-remote commands, by accessing the Wasm engine state. More precisely: - class GdbServer registers DebugDelegates that receive debug notifications when a new Wasm module is loaded, when execution suspends at a breakpoint or for an unhandled exception. - Since the GDB-remote commands arrive on a separate thread, all queries from the debugger are transformed into Task objects, that are posted into a TaskRunner that runs in the Isolate thread. - class WasmModuleDebug contains the logic to retrieve the value of globals, locals, memory ranges from the Wasm engine and to add/remove breakpoints. Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Test with: python tools\run-tests.py --outdir=out\debug_x64 debugging -j 1 Bug: chromium:1010467 Change-Id: I9703894620a027d3c920926db92e2ff809d84ab8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1941139 Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Paolo Severini <paolosev@microsoft.com> Cr-Commit-Position: refs/heads/master@{#67412}
68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
# Copyright 2020 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Flags: -expose-wasm --wasm-gdb-remote --wasm-pause-waiting-for-debugger test/debugging/wasm/gdb-server/test_files/test_basic.js
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from ctypes import *
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import os
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import subprocess
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import unittest
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import sys
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import gdb_rsp
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import test_files.test_basic as test_basic
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# These are set up by Main().
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COMMAND = None
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class Tests(unittest.TestCase):
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def test_disconnect(self):
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process = gdb_rsp.PopenDebugStub(COMMAND)
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try:
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# Connect.
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connection = gdb_rsp.GdbRspConnection()
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connection.Close()
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# Reconnect 3 times.
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for _ in range(3):
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connection = gdb_rsp.GdbRspConnection()
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connection.Close()
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finally:
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gdb_rsp.KillProcess(process)
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def test_kill(self):
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process = gdb_rsp.PopenDebugStub(COMMAND)
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try:
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connection = gdb_rsp.GdbRspConnection()
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# Request killing the target.
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reply = connection.RspRequest('k')
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self.assertEqual(reply, 'OK')
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signal = c_byte(process.wait()).value
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self.assertEqual(signal, gdb_rsp.RETURNCODE_KILL)
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finally:
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gdb_rsp.KillProcess(process)
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def test_detach(self):
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process = gdb_rsp.PopenDebugStub(COMMAND)
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try:
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connection = gdb_rsp.GdbRspConnection()
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# Request detaching from the target.
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# This resumes execution, so we get the normal exit() status.
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reply = connection.RspRequest('D')
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self.assertEqual(reply, 'OK')
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finally:
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gdb_rsp.KillProcess(process)
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def Main():
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index = sys.argv.index('--')
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args = sys.argv[index + 1:]
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# The remaining arguments go to unittest.main().
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global COMMAND
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COMMAND = args
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unittest.main(argv=sys.argv[:index])
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if __name__ == '__main__':
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Main()
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