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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
196 lines
7.5 KiB
Python
196 lines
7.5 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
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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 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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# BitFields exhibit crashes in record layout on Windows
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# (http://llvm.org/pr21800)
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@skipIfWindows
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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(
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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(
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"frame variable --show-types bits",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=[
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'(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(
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"frame variable --show-types",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=[
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'(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(
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"frame variable --show-types more_bits",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=[
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'(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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self.expect("expr (packed.a)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=['char', "'a'"])
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self.expect("expr (packed.b)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=['uint32_t', "10"])
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self.expect("expr/x (packed.c)", VARIABLES_DISPLAYED_CORRECTLY,
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substrs=['uint32_t', "7112233"])
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@add_test_categories(['pyapi'])
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# BitFields exhibit crashes in record layout on Windows
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# (http://llvm.org/pr21800)
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@skipIfWindows
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@expectedFailureAll(
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"llvm.org/pr27510",
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oslist=["linux"],
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compiler="clang",
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compiler_version=[
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">=",
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"3.9"])
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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(
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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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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# The breakpoint should have a hit count of 1.
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self.assertEqual(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(
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bits.GetTypeName() == 'Bits',
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"bits.GetTypeName() == 'Bits'")
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self.assertTrue(
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bits.GetNumChildren() == 10,
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"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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