194 lines
7.0 KiB
Python
194 lines
7.0 KiB
Python
import json
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import re
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import gdbremote_testcase
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class TestGdbRemoteThreadsInStopReply(
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gdbremote_testcase.GdbRemoteTestCaseBase):
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ENABLE_THREADS_IN_STOP_REPLY_ENTRIES = [
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"read packet: $QListThreadsInStopReply#21",
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"send packet: $OK#00",
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]
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def gather_stop_reply_fields(self, thread_count, field_names):
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context, threads = self.launch_with_threads(thread_count)
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key_vals_text = context.get("stop_reply_kv")
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self.assertIsNotNone(key_vals_text)
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self.reset_test_sequence()
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self.add_register_info_collection_packets()
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self.add_process_info_collection_packets()
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context = self.expect_gdbremote_sequence()
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self.assertIsNotNone(context)
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hw_info = self.parse_hw_info(context)
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# Parse the stop reply contents.
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kv_dict = self.parse_key_val_dict(key_vals_text)
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result = dict();
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result["pc_register"] = hw_info["pc_register"]
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result["little_endian"] = hw_info["little_endian"]
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for key_field in field_names:
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result[key_field] = kv_dict.get(key_field)
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return result
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def gather_stop_reply_threads(self, thread_count):
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# Pull out threads from stop response.
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stop_reply_threads_text = self.gather_stop_reply_fields(
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thread_count, ["threads"])["threads"]
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if stop_reply_threads_text:
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return [int(thread_id, 16)
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for thread_id in stop_reply_threads_text.split(",")]
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else:
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return []
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def gather_stop_reply_pcs(self, thread_count):
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results = self.gather_stop_reply_fields(thread_count, ["threads", "thread-pcs"])
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if not results:
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return []
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threads_text = results["threads"]
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pcs_text = results["thread-pcs"]
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thread_ids = threads_text.split(",")
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pcs = pcs_text.split(",")
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self.assertEquals(len(thread_ids), len(pcs))
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thread_pcs = dict()
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for i in range(0, len(pcs)):
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thread_pcs[int(thread_ids[i], 16)] = pcs[i]
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result = dict()
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result["thread_pcs"] = thread_pcs
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result["pc_register"] = results["pc_register"]
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result["little_endian"] = results["little_endian"]
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return result
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def switch_endian(self, egg):
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return "".join(reversed(re.findall("..", egg)))
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def parse_hw_info(self, context):
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self.assertIsNotNone(context)
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process_info = self.parse_process_info_response(context)
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endian = process_info.get("endian")
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reg_info = self.parse_register_info_packets(context)
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(pc_lldb_reg_index, pc_reg_info) = self.find_pc_reg_info(reg_info)
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hw_info = dict()
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hw_info["pc_register"] = pc_lldb_reg_index
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hw_info["little_endian"] = (endian == "little")
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return hw_info
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def gather_threads_info_pcs(self, pc_register, little_endian):
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self.reset_test_sequence()
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self.test_sequence.add_log_lines(
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[
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"read packet: $jThreadsInfo#c1",
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{
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"direction": "send",
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"regex": r"^\$(.*)#[0-9a-fA-F]{2}$",
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"capture": {
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1: "threads_info"}},
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],
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True)
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context = self.expect_gdbremote_sequence()
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self.assertIsNotNone(context)
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threads_info = context.get("threads_info")
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register = str(pc_register)
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# The jThreadsInfo response is not valid JSON data, so we have to
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# clean it up first.
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jthreads_info = json.loads(re.sub(r"}]", "}", threads_info))
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thread_pcs = dict()
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for thread_info in jthreads_info:
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tid = thread_info["tid"]
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pc = thread_info["registers"][register]
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thread_pcs[tid] = self.switch_endian(pc) if little_endian else pc
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return thread_pcs
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def test_QListThreadsInStopReply_supported(self):
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self.build()
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self.set_inferior_startup_launch()
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procs = self.prep_debug_monitor_and_inferior()
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self.test_sequence.add_log_lines(
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self.ENABLE_THREADS_IN_STOP_REPLY_ENTRIES, True)
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context = self.expect_gdbremote_sequence()
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self.assertIsNotNone(context)
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@skipIfNetBSD
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@expectedFailureAll(oslist=["windows"]) # Extra threads present
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def test_stop_reply_reports_multiple_threads(self):
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self.build()
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self.set_inferior_startup_launch()
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# Gather threads from stop notification when QThreadsInStopReply is
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# enabled.
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self.test_sequence.add_log_lines(
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self.ENABLE_THREADS_IN_STOP_REPLY_ENTRIES, True)
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stop_reply_threads = self.gather_stop_reply_threads(5)
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self.assertEqual(len(stop_reply_threads), 5)
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@skipIfNetBSD
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def test_no_QListThreadsInStopReply_supplies_no_threads(self):
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self.build()
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self.set_inferior_startup_launch()
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# Gather threads from stop notification when QThreadsInStopReply is not
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# enabled.
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stop_reply_threads = self.gather_stop_reply_threads(5)
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self.assertEqual(len(stop_reply_threads), 0)
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@skipIfNetBSD
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def test_stop_reply_reports_correct_threads(self):
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self.build()
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self.set_inferior_startup_launch()
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# Gather threads from stop notification when QThreadsInStopReply is
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# enabled.
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thread_count = 5
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self.test_sequence.add_log_lines(
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self.ENABLE_THREADS_IN_STOP_REPLY_ENTRIES, True)
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stop_reply_threads = self.gather_stop_reply_threads(thread_count)
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# Gather threads from q{f,s}ThreadInfo.
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self.reset_test_sequence()
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self.add_threadinfo_collection_packets()
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context = self.expect_gdbremote_sequence()
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self.assertIsNotNone(context)
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threads = self.parse_threadinfo_packets(context)
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self.assertIsNotNone(threads)
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self.assertGreaterEqual(len(threads), thread_count)
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# Ensure each thread in q{f,s}ThreadInfo appears in stop reply threads
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for tid in threads:
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self.assertIn(tid, stop_reply_threads)
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@skipIfNetBSD
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def test_stop_reply_contains_thread_pcs(self):
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self.build()
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self.set_inferior_startup_launch()
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thread_count = 5
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self.test_sequence.add_log_lines(
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self.ENABLE_THREADS_IN_STOP_REPLY_ENTRIES, True)
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results = self.gather_stop_reply_pcs(thread_count)
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stop_reply_pcs = results["thread_pcs"]
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pc_register = results["pc_register"]
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little_endian = results["little_endian"]
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self.assertGreaterEqual(len(stop_reply_pcs), thread_count)
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threads_info_pcs = self.gather_threads_info_pcs(pc_register,
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little_endian)
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self.assertEqual(len(threads_info_pcs), len(stop_reply_pcs))
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for thread_id in stop_reply_pcs:
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self.assertIn(thread_id, threads_info_pcs)
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self.assertEqual(int(stop_reply_pcs[thread_id], 16),
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int(threads_info_pcs[thread_id], 16))
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