1
2import gdbremote_testcase
3from lldbsuite.test.decorators import *
4from lldbsuite.test.lldbtest import *
5from lldbsuite.test import lldbutil
6
7
8supported_linux_archs = ["x86_64", "i386"]
9supported_oses = ["linux", "windows"]
10
11class TestGdbRemoteMemoryAllocation(gdbremote_testcase.GdbRemoteTestCaseBase):
12
13    mydir = TestBase.compute_mydir(__file__)
14
15    def allocate(self, size, permissions):
16        self.test_sequence.add_log_lines(["read packet: $_M{:x},{}#00".format(size, permissions),
17                                          {"direction": "send",
18                                           "regex":
19                                           r"^\$([0-9a-f]+)#[0-9a-fA-F]{2}$",
20                                           "capture": {
21                                               1: "addr"}},
22                                          ],
23                                         True)
24        context = self.expect_gdbremote_sequence()
25        self.assertIsNotNone(context)
26
27        addr = int(context.get("addr"), 16)
28        self.test_sequence.add_log_lines(["read packet: $qMemoryRegionInfo:{:x}#00".format(addr),
29                                          {"direction": "send",
30                                           "regex":
31                                           r"^\$start:([0-9a-fA-F]+);size:([0-9a-fA-F]+);permissions:([rwx]*);.*#[0-9a-fA-F]{2}$",
32                                           "capture": {
33                                               1: "addr",
34                                               2: "size",
35                                               3: "permissions"}},
36                                           "read packet: $_m{:x}#00".format(addr),
37                                           "send packet: $OK#00",
38                                          ],
39                                         True)
40        context = self.expect_gdbremote_sequence()
41        self.assertIsNotNone(context)
42
43        self.assertEqual(addr, int(context.get("addr"), 16))
44        self.assertLessEqual(size, int(context.get("size"), 16))
45        self.assertEqual(permissions, context.get("permissions"))
46
47    @skipIf(oslist=no_match(supported_oses))
48    @skipIf(oslist=["linux"], archs=no_match(supported_linux_archs))
49    @llgs_test
50    def test_supported(self):
51        """Make sure (de)allocation works on platforms where it's supposed to
52        work"""
53        self.init_llgs_test()
54        self.build()
55        self.set_inferior_startup_launch()
56        procs = self.prep_debug_monitor_and_inferior()
57
58        self.allocate(0x1000, "r")
59        self.allocate(0x2000, "rw")
60        self.allocate(0x100, "rx")
61        self.allocate(0x1100, "rwx")
62
63    @skipIf(oslist=["linux"], archs=supported_linux_archs)
64    @llgs_test
65    def test_unsupported(self):
66        """Make sure we get an "unsupported" error on platforms where the
67        feature is not implemented."""
68
69        self.init_llgs_test()
70        self.build()
71        self.set_inferior_startup_launch()
72        procs = self.prep_debug_monitor_and_inferior()
73
74        self.test_sequence.add_log_lines(["read packet: $_M1000,rw#00",
75                                           "send packet: $#00",
76                                          ],
77                                         True)
78        self.expect_gdbremote_sequence()
79
80    @llgs_test
81    def test_bad_packet(self):
82        """Make sure we get a proper error for malformed packets."""
83
84        self.init_llgs_test()
85        self.build()
86        self.set_inferior_startup_launch()
87        procs = self.prep_debug_monitor_and_inferior()
88
89        def e():
90            return {"direction": "send",
91                    "regex":
92                    r"^\$E([0-9a-fA-F]+){2}#[0-9a-fA-F]{2}$"}
93
94        self.test_sequence.add_log_lines([
95            "read packet: $_M#00", e(),
96            "read packet: $_M1x#00", e(),
97            "read packet: $_M1:#00", e(),
98            "read packet: $_M1,q#00", e(),
99            "read packet: $_m#00", e(),
100            ], True)
101        self.expect_gdbremote_sequence()
102