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Diffstat (limited to 'packages/Python/lldbsuite/test/lang/c/bitfields/TestBitfields.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/lang/c/bitfields/TestBitfields.py | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/c/bitfields/TestBitfields.py b/packages/Python/lldbsuite/test/lang/c/bitfields/TestBitfields.py new file mode 100644 index 000000000000..de7a333a18fa --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/c/bitfields/TestBitfields.py @@ -0,0 +1,162 @@ +"""Show bitfields and check that they display correctly.""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class BitfieldsTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + # Find the line number to break inside main(). + self.line = line_number('main.c', '// Set break point at this line.') + + @skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800) + def test_and_run_command(self): + """Test 'frame variable ...' on a variable with bitfields.""" + self.build() + exe = os.path.join(os.getcwd(), "a.out") + self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) + + # Break inside the main. + lldbutil.run_break_set_by_file_and_line (self, "main.c", 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. + self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE, + substrs = [' resolved, hit count = 1']) + + # This should display correctly. + self.expect("frame variable --show-types bits", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['(uint32_t:1) b1 = 1', + '(uint32_t:2) b2 = 3', + '(uint32_t:3) b3 = 7', + '(uint32_t) b4 = 15', + '(uint32_t:5) b5 = 31', + '(uint32_t:6) b6 = 63', + '(uint32_t:7) b7 = 127', + '(uint32_t:4) four = 15']) + + # And so should this. + # rdar://problem/8348251 + self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['(uint32_t:1) b1 = 1', + '(uint32_t:2) b2 = 3', + '(uint32_t:3) b3 = 7', + '(uint32_t) b4 = 15', + '(uint32_t:5) b5 = 31', + '(uint32_t:6) b6 = 63', + '(uint32_t:7) b7 = 127', + '(uint32_t:4) four = 15']) + + self.expect("expr (bits.b1)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '1']) + self.expect("expr (bits.b2)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '3']) + self.expect("expr (bits.b3)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '7']) + self.expect("expr (bits.b4)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '15']) + self.expect("expr (bits.b5)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '31']) + self.expect("expr (bits.b6)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '63']) + self.expect("expr (bits.b7)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '127']) + self.expect("expr (bits.four)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '15']) + + self.expect("frame variable --show-types more_bits", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['(uint32_t:3) a = 3', + '(uint8_t:1) b = \'\\0\'', + '(uint8_t:1) c = \'\\x01\'', + '(uint8_t:1) d = \'\\0\'']) + + self.expect("expr (more_bits.a)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint32_t', '3']) + self.expect("expr (more_bits.b)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint8_t', '\\0']) + self.expect("expr (more_bits.c)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint8_t', '\\x01']) + self.expect("expr (more_bits.d)", VARIABLES_DISPLAYED_CORRECTLY, + substrs = ['uint8_t', '\\0']) + + @add_test_categories(['pyapi']) + @skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800) + def test_and_python_api(self): + """Use Python APIs to inspect a bitfields variable.""" + self.build() + exe = os.path.join(os.getcwd(), "a.out") + + target = self.dbg.CreateTarget(exe) + self.assertTrue(target, VALID_TARGET) + + breakpoint = target.BreakpointCreateByLocation("main.c", self.line) + self.assertTrue(breakpoint, VALID_BREAKPOINT) + + process = target.LaunchSimple (None, None, self.get_process_working_directory()) + self.assertTrue(process, PROCESS_IS_VALID) + + # The stop reason of the thread should be breakpoint. + thread = target.GetProcess().GetThreadAtIndex(0) + if thread.GetStopReason() != lldb.eStopReasonBreakpoint: + from lldbsuite.test.lldbutil import stop_reason_to_str + self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS % + stop_reason_to_str(thread.GetStopReason())) + + # The breakpoint should have a hit count of 1. + self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE) + + # Lookup the "bits" variable which contains 8 bitfields. + frame = thread.GetFrameAtIndex(0) + bits = frame.FindVariable("bits") + self.DebugSBValue(bits) + self.assertTrue(bits.GetTypeName() == 'Bits', "bits.GetTypeName() == 'Bits'"); + self.assertTrue(bits.GetNumChildren() == 10, "bits.GetNumChildren() == 10"); + test_compiler = self.getCompiler() + self.assertTrue(bits.GetByteSize() == 32, "bits.GetByteSize() == 32"); + + # Notice the pattern of int(b1.GetValue(), 0). We pass a base of 0 + # so that the proper radix is determined based on the contents of the + # string. + b1 = bits.GetChildMemberWithName("b1") + self.DebugSBValue(b1) + self.assertTrue(b1.GetName() == "b1" and + b1.GetTypeName() == "uint32_t:1" and + b1.IsInScope() and + int(b1.GetValue(), 0) == 1, + 'bits.b1 has type uint32_t:1, is in scope, and == 1') + + b7 = bits.GetChildMemberWithName("b7") + self.DebugSBValue(b7) + self.assertTrue(b7.GetName() == "b7" and + b7.GetTypeName() == "uint32_t:7" and + b7.IsInScope() and + int(b7.GetValue(), 0) == 127, + 'bits.b7 has type uint32_t:7, is in scope, and == 127') + + four = bits.GetChildMemberWithName("four") + self.DebugSBValue(four) + self.assertTrue(four.GetName() == "four" and + four.GetTypeName() == "uint32_t:4" and + four.IsInScope() and + int(four.GetValue(), 0) == 15, + 'bits.four has type uint32_t:4, is in scope, and == 15') + + # Now kill the process, and we are done. + rc = target.GetProcess().Kill() + self.assertTrue(rc.Success()) |