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5ec76fe720
This patch is the result of a discussion on lldb-dev, see http://lists.llvm.org/pipermail/lldb-dev/2018-January/013111.html for background. For each test (should be eventually: each test configuration) a separate build directory is created and we execute make VPATH=$srcdir/path/to/test -C $builddir/path/to/test -f $srcdir/path/to/test/Makefile -I $srcdir/path/to/test In order to make this work all LLDB tests need to be updated to find the executable in the test build directory, since CWD still points at the test's source directory, which is a requirement for unittest2. Although we have done extensive testing, I'm expecting that this first attempt will break a few bots. Please DO NOT HESITATE TO REVERT this patch in order to get the bots green again. We will likely have to iterate on this some more. Differential Revision: https://reviews.llvm.org/D42281 llvm-svn: 323803
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
"""
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Test calling an overriden method.
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Note:
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This verifies that LLDB is correctly building the method overrides table.
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If this table is not built correctly then calls to overridden methods in
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derived classes may generate references to non-existant vtable entries,
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as the compiler treats the overridden method as a totally new virtual
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method definition.
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<rdar://problem/14205774>
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"""
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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 ExprCommandCallOverriddenMethod(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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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 number to break for main.c.
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self.line = line_number('main.cpp', '// Set breakpoint here')
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def test(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test call to method in base class (this should always work as the base
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# class method is never an override).
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self.expect("expr b->foo()")
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# Test call to overridden method in derived class (this will fail if the
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# overrides table is not correctly set up, as Derived::foo will be assigned
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# a vtable entry that does not exist in the compiled program).
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self.expect("expr d.foo()")
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