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https://github.com/Gericom/teak-llvm.git
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19474e1801
This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
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 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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