packages/Python/lldbsuite/test/lang/c/const_variables/TestConstVariables.py

   1 """Check that compiler-generated constant values work correctly"""
   2
   3 from __future__ import print_function
   4
   5
   6
   7 import os, time
   8 import lldb
   9 from lldbsuite.test.decorators import *
  10 from lldbsuite.test.lldbtest import *
  11 from lldbsuite.test import lldbutil
  12
  13 class ConstVariableTestCase(TestBase):
  14
  15     mydir = TestBase.compute_mydir(__file__)
  16
  17     @expectedFailureAll(
  18         oslist=["freebsd", "linux"],
  19         compiler="clang", compiler_version=["<", "3.5"])
  20     @expectedFailureAll(
  21         oslist=["freebsd", "linux"],
  22         compiler="clang", compiler_version=["=", "3.7"])
  23     @expectedFailureAll(
  24         oslist=["freebsd", "linux"],
  25         compiler="clang", compiler_version=["=", "3.8"])
  26     @expectedFailureAll(oslist=["freebsd", "linux"], compiler="icc")
  27     @expectedFailureAll(archs=['mips', 'mipsel', 'mips64', 'mips64el'])
  28     @expectedFailureAll(oslist=["linux"], archs=['arm', 'aarch64'], bugnumber="llvm.org/pr27883")
  29     @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24489: Name lookup not working correctly on Windows")
  30     def test_and_run_command(self):
  31         """Test interpreted and JITted expressions on constant values."""
  32         self.build()
  33         exe = os.path.join(os.getcwd(), "a.out")
  34         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  35
  36         # Break inside the main.
  37         lldbutil.run_break_set_by_symbol (self, "main", num_expected_locations=1)
  38
  39         self.runCmd("run", RUN_SUCCEEDED)
  40
  41         # The stop reason of the thread should be breakpoint.
  42         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  43             substrs = ['stopped',
  44                        'stop reason = breakpoint'])
  45
  46         # The breakpoint should have a hit count of 1.
  47         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
  48             substrs = [' resolved, hit count = 1'])
  49
  50         self.runCmd("next")
  51         self.runCmd("next")
  52
  53         # Try frame variable.
  54         self.expect("frame variable index", VARIABLES_DISPLAYED_CORRECTLY,
  55             substrs = ['(int32_t) index = 512'])
  56
  57         # Try an interpreted expression.
  58         self.expect("expr (index + 512)", VARIABLES_DISPLAYED_CORRECTLY,
  59             substrs = ['1024'])
  60
  61         # Try a JITted expression.
  62         self.expect("expr (int)getpid(); (index - 256)", VARIABLES_DISPLAYED_CORRECTLY,
  63             substrs = ['256'])
  64
  65         self.runCmd("kill")