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"""Test that hidden ivars in a shared library are visible from the main executable."""
import subprocess
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class HiddenIvarsTestCase(TestBase):
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.source = "main.m"
self.line = line_number(self.source, "// breakpoint1")
# The makefile names of the shared libraries as they appear in DYLIB_NAME.
# The names should have no loading "lib" or extension as they will be
# localized
self.shlib_names = ["InternalDefiner"]
@skipIf(
debug_info=no_match("dsym"),
bugnumber="This test requires a stripped binary and a dSYM",
)
def test_expr_stripped(self):
if self.getArchitecture() == "i386":
self.skipTest("requires modern objc runtime")
else:
self.build()
self.expr(True)
def test_expr(self):
if self.getArchitecture() == "i386":
self.skipTest("requires modern objc runtime")
else:
self.build()
self.expr(False)
@skipIf(
debug_info=no_match("dsym"),
bugnumber="This test requires a stripped binary and a dSYM",
)
def test_frame_variable_stripped(self):
if self.getArchitecture() == "i386":
self.skipTest("requires modern objc runtime")
else:
self.build()
self.frame_var(True)
def test_frame_variable(self):
if self.getArchitecture() == "i386":
self.skipTest("requires modern objc runtime")
else:
self.build()
self.frame_var(False)
@expectedFailure("rdar://18683637")
def test_frame_variable_across_modules(self):
if self.getArchitecture() == "i386":
self.skipTest("requires modern objc runtime")
else:
self.build()
self.common_setup(False)
self.expect(
"frame variable k->bar", VARIABLES_DISPLAYED_CORRECTLY, substrs=["= 3"]
)
def common_setup(self, strip):
if strip:
exe = self.getBuildArtifact("stripped/a.out")
else:
exe = self.getBuildArtifact("a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Create the breakpoint inside function 'main'.
breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Register our shared libraries for remote targets so they get
# automatically uploaded
environment = self.registerSharedLibrariesWithTarget(target, self.shlib_names)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, environment, self.get_process_working_directory()
)
self.assertTrue(process, PROCESS_IS_VALID)
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break inside the foo function which takes a bar_ptr argument.
lldbutil.run_break_set_by_file_and_line(
self, "main.m", self.line, 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"],
)
# The breakpoint should have a hit count of 1.
lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1)
def expr(self, strip):
self.common_setup(strip)
# This should display correctly.
self.expect(
"expression (j->_definer->foo)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 4"],
)
self.expect(
"expression (j->_definer->bar)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 5"],
)
if strip:
self.expect(
"expression *(j->_definer)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 4"],
)
else:
self.expect(
"expression *(j->_definer)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 4", "bar = 5"],
)
self.expect(
"expression (k->foo)", VARIABLES_DISPLAYED_CORRECTLY, substrs=["= 2"]
)
self.expect(
"expression (k->bar)", VARIABLES_DISPLAYED_CORRECTLY, substrs=["= 3"]
)
self.expect(
"expression k.filteredDataSource",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=[" = 0x", '"2 elements"'],
)
if strip:
self.expect(
"expression *(k)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 2", " = 0x", '"2 elements"'],
)
else:
self.expect(
"expression *(k)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=[
"foo = 2",
"bar = 3",
"_filteredDataSource = 0x",
'"2 elements"',
],
)
def frame_var(self, strip):
self.common_setup(strip)
# This should display correctly.
self.expect(
"frame variable j->_definer->foo",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 4"],
)
if not strip:
self.expect(
"frame variable j->_definer->bar",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 5"],
)
if strip:
self.expect(
"frame variable *j->_definer",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 4"],
)
else:
self.expect(
"frame variable *j->_definer",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 4", "bar = 5"],
)
self.expect(
"frame variable k->foo", VARIABLES_DISPLAYED_CORRECTLY, substrs=["= 2"]
)
self.expect(
"frame variable k->_filteredDataSource",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=[" = 0x", '"2 elements"'],
)
if strip:
self.expect(
"frame variable *k",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["foo = 2", "_filteredDataSource = 0x", '"2 elements"'],
)
else:
self.expect(
"frame variable *k",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=[
"foo = 2",
"bar = 3",
"_filteredDataSource = 0x",
'"2 elements"',
],
)
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