b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
175 lines
6.1 KiB
Python
175 lines
6.1 KiB
Python
"""Test that anonymous structs/unions are transparent to member access"""
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from __future__ import print_function
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import os
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import time
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import lldb
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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 AnonymousTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@skipIf(
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compiler="icc",
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bugnumber="llvm.org/pr15036: LLDB generates an incorrect AST layout for an anonymous struct when DWARF is generated by ICC")
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def test_expr_nest(self):
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self.build()
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self.common_setup(self.line0)
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# These should display correctly.
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self.expect("expression n->foo.d", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 4"])
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self.expect("expression n->b", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 2"])
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def test_expr_child(self):
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self.build()
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self.common_setup(self.line1)
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# These should display correctly.
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self.expect("expression c->foo.d", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 4"])
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self.expect(
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"expression c->grandchild.b",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 2"])
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@skipIf(
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compiler="icc",
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bugnumber="llvm.org/pr15036: This particular regression was introduced by r181498")
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def test_expr_grandchild(self):
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self.build()
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self.common_setup(self.line2)
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# These should display correctly.
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self.expect("expression g.child.foo.d", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 4"])
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self.expect("expression g.child.b", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["= 2"])
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def test_expr_parent(self):
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self.build()
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if "clang" in self.getCompiler() and "3.4" in self.getCompilerVersion():
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self.skipTest(
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"llvm.org/pr16214 -- clang emits partial DWARF for structures referenced via typedef")
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self.common_setup(self.line2)
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# These should display correctly.
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self.expect("expression pz", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["(type_z *) $", " = 0x0000"])
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self.expect("expression z.y", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["(type_y) $", "dummy = 2"])
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr21550")
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def test_expr_null(self):
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self.build()
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self.common_setup(self.line2)
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# This should fail because pz is 0, but it succeeds on OS/X.
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# This fails on Linux with an upstream error "Couldn't dematerialize struct", as does "p *n" with "int *n = 0".
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# Note that this can also trigger llvm.org/pr15036 when run
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# interactively at the lldb command prompt.
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self.expect("expression *(type_z *)pz", error=True)
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def test_child_by_name(self):
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self.build()
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# Set debugger into synchronous mode
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self.dbg.SetAsync(False)
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# Create a target
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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break_in_main = target.BreakpointCreateBySourceRegex(
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'// Set breakpoint 2 here.', lldb.SBFileSpec(self.source))
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self.assertTrue(break_in_main, VALID_BREAKPOINT)
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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threads = lldbutil.get_threads_stopped_at_breakpoint(
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process, break_in_main)
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if len(threads) != 1:
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self.fail("Failed to stop at breakpoint in main.")
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thread = threads[0]
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frame = thread.frames[0]
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if not frame.IsValid():
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self.fail("Failed to get frame 0.")
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var_n = frame.FindVariable("n")
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if not var_n.IsValid():
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self.fail("Failed to get the variable 'n'")
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elem_a = var_n.GetChildMemberWithName("a")
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if not elem_a.IsValid():
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self.fail("Failed to get the element a in n")
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error = lldb.SBError()
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value = elem_a.GetValueAsSigned(error, 1000)
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if not error.Success() or value != 0:
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self.fail("failed to get the correct value for element a in n")
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def test_nest_flat(self):
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self.build()
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self.common_setup(self.line2)
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# These should display correctly.
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self.expect('frame variable n --flat',
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substrs=['n.a = 0',
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'n.b = 2',
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'n.foo.c = 0',
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'n.foo.d = 4'])
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line numbers to break in main.c.
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self.source = 'main.c'
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self.line0 = line_number(self.source, '// Set breakpoint 0 here.')
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self.line1 = line_number(self.source, '// Set breakpoint 1 here.')
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self.line2 = line_number(self.source, '// Set breakpoint 2 here.')
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def common_setup(self, line):
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# Set debugger into synchronous mode
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self.dbg.SetAsync(False)
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# Create a target
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Set breakpoints inside and outside methods that take pointers to the
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# containing struct.
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lldbutil.run_break_set_by_file_and_line(
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self, self.source, line, num_expected_locations=1, loc_exact=True)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped',
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'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 1.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
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substrs=[' resolved, hit count = 1'])
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