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c15c296521
Nearly all of our lldb-server tests have two flavours (lldb-server and debugserver). Each of them is tagged with an appropriate decorator, and each of them starts with a call to a matching "init" method. The init calls are mandatory, and it's not possible to meaningfully combine them with a different decorator. This patch leverages the existing decorators to also tag the tests with the appropriate debug server tag, similar to how we do with debug info flavours. This allows us to make the "init" calls from inside the common setUp method.
218 lines
7.6 KiB
Python
218 lines
7.6 KiB
Python
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 TestGdbRemoteAuxvSupport(gdbremote_testcase.GdbRemoteTestCaseBase):
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mydir = TestBase.compute_mydir(__file__)
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AUXV_SUPPORT_FEATURE_NAME = "qXfer:auxv:read"
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@skipIfDarwinEmbedded # <rdar://problem/34539270> lldb-server tests not updated to work on ios etc yet
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def has_auxv_support(self):
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inferior_args = ["message:main entered", "sleep:5"]
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procs = self.prep_debug_monitor_and_inferior(
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inferior_args=inferior_args)
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# Don't do anything until we match the launched inferior main entry output.
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# Then immediately interrupt the process.
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# This prevents auxv data being asked for before it's ready and leaves
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# us in a stopped state.
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self.test_sequence.add_log_lines([
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# Start the inferior...
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"read packet: $c#63",
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# ... match output....
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{"type": "output_match", "regex": self.maybe_strict_output_regex(
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r"message:main entered\r\n")},
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], True)
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# ... then interrupt.
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self.add_interrupt_packets()
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self.add_qSupported_packets()
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context = self.expect_gdbremote_sequence()
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self.assertIsNotNone(context)
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features = self.parse_qSupported_response(context)
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return self.AUXV_SUPPORT_FEATURE_NAME in features and features[
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self.AUXV_SUPPORT_FEATURE_NAME] == "+"
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def get_raw_auxv_data(self):
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# Start up llgs and inferior, and check for auxv support.
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if not self.has_auxv_support():
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self.skipTest("auxv data not supported")
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# Grab pointer size for target. We'll assume that is equivalent to an unsigned long on the target.
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# Auxv is specified in terms of pairs of unsigned longs.
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self.reset_test_sequence()
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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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proc_info = self.parse_process_info_response(context)
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self.assertIsNotNone(proc_info)
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self.assertTrue("ptrsize" in proc_info)
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word_size = int(proc_info["ptrsize"])
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OFFSET = 0
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LENGTH = 0x400
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# Grab the auxv data.
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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: $qXfer:auxv:read::{:x},{:x}:#00".format(
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OFFSET,
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LENGTH),
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{
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"direction": "send",
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"regex": re.compile(
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r"^\$([^E])(.*)#[0-9a-fA-F]{2}$",
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re.MULTILINE | re.DOTALL),
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"capture": {
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1: "response_type",
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2: "content_raw"}}],
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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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# Ensure we end up with all auxv data in one packet.
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# FIXME don't assume it all comes back in one packet.
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self.assertEqual(context.get("response_type"), "l")
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# Decode binary data.
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content_raw = context.get("content_raw")
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self.assertIsNotNone(content_raw)
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return (word_size, self.decode_gdbremote_binary(content_raw))
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def supports_auxv(self):
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# When non-auxv platforms support llgs, skip the test on platforms
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# that don't support auxv.
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self.assertTrue(self.has_auxv_support())
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#
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# We skip the "supports_auxv" test on debugserver. The rest of the tests
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# appropriately skip the auxv tests if the support flag is not present
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# in the qSupported response, so the debugserver test bits are still there
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# in case debugserver code one day does have auxv support and thus those
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# tests don't get skipped.
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#
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@skipIfWindows # no auxv support.
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@llgs_test
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def test_supports_auxv_llgs(self):
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self.build()
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self.set_inferior_startup_launch()
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self.supports_auxv()
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def auxv_data_is_correct_size(self):
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(word_size, auxv_data) = self.get_raw_auxv_data()
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self.assertIsNotNone(auxv_data)
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# Ensure auxv data is a multiple of 2*word_size (there should be two
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# unsigned long fields per auxv entry).
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self.assertEqual(len(auxv_data) % (2 * word_size), 0)
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self.trace("auxv contains {} entries".format(len(auxv_data) / (2*word_size)))
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@debugserver_test
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def test_auxv_data_is_correct_size_debugserver(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_data_is_correct_size()
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@skipIfWindows
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@expectedFailureNetBSD
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@llgs_test
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def test_auxv_data_is_correct_size_llgs(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_data_is_correct_size()
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def auxv_keys_look_valid(self):
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(word_size, auxv_data) = self.get_raw_auxv_data()
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self.assertIsNotNone(auxv_data)
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# Grab endian.
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self.reset_test_sequence()
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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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process_info = self.parse_process_info_response(context)
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self.assertIsNotNone(process_info)
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endian = process_info.get("endian")
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self.assertIsNotNone(endian)
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auxv_dict = self.build_auxv_dict(endian, word_size, auxv_data)
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self.assertIsNotNone(auxv_dict)
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# Verify keys look reasonable.
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for auxv_key in auxv_dict:
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self.assertTrue(auxv_key >= 1)
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self.assertTrue(auxv_key <= 1000)
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self.trace("auxv dict: {}".format(auxv_dict))
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@debugserver_test
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def test_auxv_keys_look_valid_debugserver(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_keys_look_valid()
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@skipIfWindows
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@expectedFailureNetBSD
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@llgs_test
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def test_auxv_keys_look_valid_llgs(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_keys_look_valid()
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def auxv_chunked_reads_work(self):
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# Verify that multiple smaller offset,length reads of auxv data
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# return the same data as a single larger read.
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# Grab the auxv data with a single large read here.
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(word_size, auxv_data) = self.get_raw_auxv_data()
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self.assertIsNotNone(auxv_data)
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# Grab endian.
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self.reset_test_sequence()
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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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process_info = self.parse_process_info_response(context)
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self.assertIsNotNone(process_info)
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endian = process_info.get("endian")
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self.assertIsNotNone(endian)
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auxv_dict = self.build_auxv_dict(endian, word_size, auxv_data)
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self.assertIsNotNone(auxv_dict)
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iterated_auxv_data = self.read_binary_data_in_chunks(
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"qXfer:auxv:read::", 2 * word_size)
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self.assertIsNotNone(iterated_auxv_data)
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auxv_dict_iterated = self.build_auxv_dict(
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endian, word_size, iterated_auxv_data)
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self.assertIsNotNone(auxv_dict_iterated)
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# Verify both types of data collection returned same content.
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self.assertEqual(auxv_dict_iterated, auxv_dict)
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@debugserver_test
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def test_auxv_chunked_reads_work_debugserver(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_chunked_reads_work()
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@skipIfWindows
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@expectedFailureNetBSD
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@llgs_test
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def test_auxv_chunked_reads_work_llgs(self):
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self.build()
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self.set_inferior_startup_launch()
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self.auxv_chunked_reads_work()
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