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.lldbtest import *
  10 import lldbsuite.test.lldbutil as lldbutil
  11
  12 class ConstVariableTestCase(TestBase):
  13
  14     mydir = TestBase.compute_mydir(__file__)
  15
  16     @expectedFailureAll(
  17         oslist=["freebsd", "linux"],
  18         compiler="clang", compiler_version=["<", "3.5"])
  19     @expectedFailureAll(
  20         oslist=["freebsd", "linux"],
  21         compiler="clang", compiler_version=["=", "3.7"])
  22     @expectedFailureAll(
  23         oslist=["freebsd", "linux"],
  24         compiler="clang", compiler_version=["=", "3.8"])
  25     @expectedFailureAll(oslist=["freebsd", "linux"], compiler="icc")
  26     @expectedFailureAll(archs=['mips', 'mipsel', 'mips64', 'mips64el'])
  27     @expectedFailureWindows("llvm.org/pr24489: Name lookup not working correctly on Windows")
  28     @expectedFailureWindows("llvm.org/pr24490: We shouldn't be using platform-specific names like `getpid` in tests")
  29     def test_and_run_command(self):
  30         """Test interpreted and JITted expressions on constant values."""
  31         self.build()
  32         exe = os.path.join(os.getcwd(), "a.out")
  33         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  34
  35         # Break inside the main.
  36         lldbutil.run_break_set_by_symbol (self, "main", num_expected_locations=1)
  37
  38         self.runCmd("run", RUN_SUCCEEDED)
  39
  40         # The stop reason of the thread should be breakpoint.
  41         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  42             substrs = ['stopped',
  43                        'stop reason = breakpoint'])
  44
  45         # The breakpoint should have a hit count of 1.
  46         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
  47             substrs = [' resolved, hit count = 1'])
  48
  49         self.runCmd("next")
  50         self.runCmd("next")
  51
  52         # Try frame variable.
  53         self.expect("frame variable index", VARIABLES_DISPLAYED_CORRECTLY,
  54             substrs = ['(int32_t) index = 512'])
  55
  56         # Try an interpreted expression.
  57         self.expect("expr (index + 512)", VARIABLES_DISPLAYED_CORRECTLY,
  58             substrs = ['1024'])
  59
  60         # Try a JITted expression.
  61         self.expect("expr (int)getpid(); (index - 256)", VARIABLES_DISPLAYED_CORRECTLY,
  62             substrs = ['256'])
  63
  64         self.runCmd("kill")