95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
163 lines
7.0 KiB
Python
163 lines
7.0 KiB
Python
"""Show bitfields and check that they display correctly."""
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from __future__ import print_function
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import use_lldb_suite
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import os, time
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class BitfieldsTestCase(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 inside main().
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self.line = line_number('main.c', '// Set break point at this line.')
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@skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800)
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def test_and_run_command(self):
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"""Test 'frame variable ...' on a variable with bitfields."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Break inside the main.
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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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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# This should display correctly.
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self.expect("frame variable --show-types bits", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['(uint32_t:1) b1 = 1',
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'(uint32_t:2) b2 = 3',
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'(uint32_t:3) b3 = 7',
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'(uint32_t) b4 = 15',
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'(uint32_t:5) b5 = 31',
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'(uint32_t:6) b6 = 63',
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'(uint32_t:7) b7 = 127',
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'(uint32_t:4) four = 15'])
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# And so should this.
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# rdar://problem/8348251
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self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['(uint32_t:1) b1 = 1',
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'(uint32_t:2) b2 = 3',
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'(uint32_t:3) b3 = 7',
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'(uint32_t) b4 = 15',
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'(uint32_t:5) b5 = 31',
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'(uint32_t:6) b6 = 63',
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'(uint32_t:7) b7 = 127',
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'(uint32_t:4) four = 15'])
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self.expect("expr (bits.b1)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '1'])
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self.expect("expr (bits.b2)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '3'])
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self.expect("expr (bits.b3)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '7'])
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self.expect("expr (bits.b4)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '15'])
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self.expect("expr (bits.b5)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '31'])
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self.expect("expr (bits.b6)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '63'])
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self.expect("expr (bits.b7)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '127'])
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self.expect("expr (bits.four)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '15'])
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self.expect("frame variable --show-types more_bits", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['(uint32_t:3) a = 3',
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'(uint8_t:1) b = \'\\0\'',
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'(uint8_t:1) c = \'\\x01\'',
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'(uint8_t:1) d = \'\\0\''])
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self.expect("expr (more_bits.a)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint32_t', '3'])
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self.expect("expr (more_bits.b)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint8_t', '\\0'])
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self.expect("expr (more_bits.c)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint8_t', '\\x01'])
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self.expect("expr (more_bits.d)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs = ['uint8_t', '\\0'])
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@add_test_categories(['pyapi'])
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@skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800)
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def test_and_python_api(self):
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"""Use Python APIs to inspect a bitfields variable."""
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self.build()
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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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breakpoint = target.BreakpointCreateByLocation("main.c", self.line)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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process = target.LaunchSimple (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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thread = target.GetProcess().GetThreadAtIndex(0)
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if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
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from lldbsuite.test.lldbutil import stop_reason_to_str
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self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
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stop_reason_to_str(thread.GetStopReason()))
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# The breakpoint should have a hit count of 1.
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self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE)
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# Lookup the "bits" variable which contains 8 bitfields.
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frame = thread.GetFrameAtIndex(0)
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bits = frame.FindVariable("bits")
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self.DebugSBValue(bits)
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self.assertTrue(bits.GetTypeName() == 'Bits', "bits.GetTypeName() == 'Bits'");
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self.assertTrue(bits.GetNumChildren() == 10, "bits.GetNumChildren() == 10");
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test_compiler = self.getCompiler()
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self.assertTrue(bits.GetByteSize() == 32, "bits.GetByteSize() == 32");
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# Notice the pattern of int(b1.GetValue(), 0). We pass a base of 0
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# so that the proper radix is determined based on the contents of the
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# string.
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b1 = bits.GetChildMemberWithName("b1")
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self.DebugSBValue(b1)
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self.assertTrue(b1.GetName() == "b1" and
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b1.GetTypeName() == "uint32_t:1" and
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b1.IsInScope() and
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int(b1.GetValue(), 0) == 1,
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'bits.b1 has type uint32_t:1, is in scope, and == 1')
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b7 = bits.GetChildMemberWithName("b7")
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self.DebugSBValue(b7)
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self.assertTrue(b7.GetName() == "b7" and
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b7.GetTypeName() == "uint32_t:7" and
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b7.IsInScope() and
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int(b7.GetValue(), 0) == 127,
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'bits.b7 has type uint32_t:7, is in scope, and == 127')
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four = bits.GetChildMemberWithName("four")
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self.DebugSBValue(four)
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self.assertTrue(four.GetName() == "four" and
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four.GetTypeName() == "uint32_t:4" and
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four.IsInScope() and
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int(four.GetValue(), 0) == 15,
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'bits.four has type uint32_t:4, is in scope, and == 15')
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# Now kill the process, and we are done.
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rc = target.GetProcess().Kill()
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self.assertTrue(rc.Success())
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