b9225e8607
This changes Python API tests to use a single build shared across all test functions, instead of the previous default behavior of a separate build dir for each test function. This build behavior opt-out, tests can use the previous behavior of one individual (unshared) build directory per test function, by setting `SHARED_BUILD_TESTCASE` to False (in the test class). The motivation is to make the test suite more efficient, by not repeatedly building the same test source. When running tests on my macOS machine, this reduces the time of `ninja check-lldb-api` by almost 60% (sample numbers: from ~492s down to ~207s = 58%). Almost 5min time saved. Each test function still calls `self.build()`, but only the first call will do a build, in the subsequent tests `make` will be a no-op because the sources won't have changed.
92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
"""Test lldb reloads the inferior after it was changed during the session."""
|
|
|
|
|
|
import time
|
|
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import configuration
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
class ChangedInferiorTestCase(TestBase):
|
|
SHARED_BUILD_TESTCASE = False
|
|
|
|
@skipIf(hostoslist=["windows"])
|
|
@no_debug_info_test
|
|
def test_inferior_crashing(self):
|
|
"""Test lldb reloads the inferior after it was changed during the session."""
|
|
self.build()
|
|
self.inferior_crashing()
|
|
self.cleanup()
|
|
# lldb needs to recognize the inferior has changed. If lldb needs to check the
|
|
# new module timestamp, make sure it is not the same as the old one, so add a
|
|
# 1 second delay.
|
|
time.sleep(1)
|
|
d = {"C_SOURCES": "main2.c"}
|
|
self.build(dictionary=d)
|
|
self.setTearDownCleanup(dictionary=d)
|
|
self.inferior_not_crashing()
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Find the line number of the crash.
|
|
self.line1 = line_number("main.c", "// Crash here.")
|
|
self.line2 = line_number("main2.c", "// Not crash here.")
|
|
|
|
def inferior_crashing(self):
|
|
"""Inferior crashes upon launching; lldb should catch the event and stop."""
|
|
self.exe = self.getBuildArtifact("a.out")
|
|
self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET)
|
|
|
|
self.runCmd("run", RUN_SUCCEEDED)
|
|
|
|
# We should have one crashing thread
|
|
self.assertEqual(
|
|
len(
|
|
lldbutil.get_crashed_threads(
|
|
self, self.dbg.GetSelectedTarget().GetProcess()
|
|
)
|
|
),
|
|
1,
|
|
STOPPED_DUE_TO_EXC_BAD_ACCESS,
|
|
)
|
|
|
|
# And it should report the correct line number.
|
|
self.expect("thread backtrace all", substrs=["main.c:%d" % self.line1])
|
|
|
|
def inferior_not_crashing(self):
|
|
"""Test lldb reloads the inferior after it was changed during the session."""
|
|
self.runCmd("process kill")
|
|
self.runCmd("run", RUN_SUCCEEDED)
|
|
self.runCmd("process status")
|
|
|
|
self.assertNotEqual(
|
|
len(
|
|
lldbutil.get_crashed_threads(
|
|
self, self.dbg.GetSelectedTarget().GetProcess()
|
|
)
|
|
),
|
|
1,
|
|
"Inferior changed, but lldb did not perform a reload",
|
|
)
|
|
|
|
# Break inside the main.
|
|
lldbutil.run_break_set_by_file_and_line(
|
|
self, "main2.c", self.line2, num_expected_locations=1, loc_exact=True
|
|
)
|
|
|
|
self.runCmd("run", RUN_SUCCEEDED)
|
|
|
|
# The stop reason of the thread should be breakpoint.
|
|
self.expect(
|
|
"thread list",
|
|
STOPPED_DUE_TO_BREAKPOINT,
|
|
substrs=["stopped", "stop reason = breakpoint"],
|
|
)
|
|
|
|
self.runCmd("frame variable int_ptr")
|
|
self.expect("frame variable *int_ptr", substrs=["= 7"])
|
|
self.expect("expression *int_ptr", substrs=["= 7"])
|