File: TestEarlyProcessLaunch.py

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (65 lines) | stat: -rw-r--r-- 2,493 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
"""Test that we don't read objc class tables early in process startup."""

import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil


class TestEarlyProcessLaunch(TestBase):
    NO_DEBUG_INFO_TESTCASE = True

    @skipUnlessDarwin
    @skipIfAsan  # rdar://103359354
    @skipIfOutOfTreeDebugserver  # 2022-12-13 FIXME: skipping system debugserver
    # until this feature is included in the system
    # debugserver.
    @add_test_categories(["pyapi"])
    def test_early_process_launch(self):
        """Test that we don't read objc class tables early in proc startup"""
        self.build()

        ###
        ### Hit a breakpoint on the first malloc() call, which
        ### is before libSystem has finished initializing.  At
        ### this point, we should not read the objc class tables.
        ### Then continue to main(), which is past libSystem
        ### initializing.  Try again, and they should be read.
        ###
        ### Use the types logging to detect the difference.

        exe = self.getBuildArtifact("a.out")
        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target.IsValid())
        bkpt = target.BreakpointCreateByRegex("alloc", None)
        self.assertTrue(bkpt.IsValid())
        (target, process, thread, bkpt) = lldbutil.run_to_breakpoint_do_run(
            self, target, bkpt
        )

        target.DisableAllBreakpoints()
        target.BreakpointCreateByName("main")

        logfile_early = os.path.join(self.getBuildDir(), "types-log-early.txt")
        self.addTearDownHook(lambda: self.runCmd("log disable lldb types"))
        self.runCmd("log enable -f %s lldb types" % logfile_early)
        self.runCmd("expression global = 15")

        err = process.Continue()
        self.assertTrue(err.Success())

        logfile_later = os.path.join(self.getBuildDir(), "types-log-later.txt")
        self.runCmd("log enable -f %s lldb types" % logfile_later)
        self.runCmd("expression global = 25")

        self.assertTrue(os.path.exists(logfile_early))
        self.assertTrue(os.path.exists(logfile_later))
        early_text = open(logfile_early).read()
        later_text = open(logfile_later).read()

        self.assertIn("ran: no, retry: yes", early_text)
        self.assertNotIn("ran: no, retry: yes", later_text)

        self.assertNotIn("ran: yes, retry: no", early_text)
        self.assertIn("ran: yes, retry: no", later_text)