lldb/test/API/lang/c/modules/TestCModules.py

   1 """Test that importing modules in C works as expected."""
   2
   3
   4 import os
   5
   6 import lldb
   7 from lldbsuite.test.decorators import *
   8 from lldbsuite.test.lldbtest import *
   9 from lldbsuite.test import lldbutil
  10
  11
  12 class CModulesTestCase(TestBase):
  13     @expectedFailureAll(
  14         oslist=["freebsd", "linux"],
  15         bugnumber="http://llvm.org/pr23456 'fopen' has unknown return type",
  16     )
  17     @expectedFailureAll(
  18         oslist=["windows"],
  19         bugnumber="llvm.org/pr24489: Name lookup not working correctly on Windows",
  20     )
  21     @skipIf(macos_version=["<", "10.12"])
  22     @expectedFailureNetBSD
  23     def test_expr(self):
  24         self.build()
  25         exe = self.getBuildArtifact("a.out")
  26         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  27
  28         # Break inside the foo function which takes a bar_ptr argument.
  29         lldbutil.run_break_set_by_file_and_line(
  30             self, "main.c", self.line, num_expected_locations=1, loc_exact=True
  31         )
  32
  33         self.runCmd("run", RUN_SUCCEEDED)
  34
  35         # The stop reason of the thread should be breakpoint.
  36         self.expect(
  37             "thread list",
  38             STOPPED_DUE_TO_BREAKPOINT,
  39             substrs=["stopped", "stop reason = breakpoint"],
  40         )
  41
  42         # The breakpoint should have a hit count of 1.
  43         lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1)
  44
  45         # Enable logging of the imported AST.
  46         log_file = self.getBuildArtifact("lldb-ast-log.txt")
  47         self.runCmd("log enable lldb ast -f '%s'" % log_file)
  48
  49         self.expect(
  50             "expr -l objc++ -- @import Darwin; 3",
  51             VARIABLES_DISPLAYED_CORRECTLY,
  52             substrs=["int", "3"],
  53         )
  54
  55         # This expr command imports __sFILE with definition
  56         # (FILE is a typedef to __sFILE.)
  57         self.expect(
  58             'expr *fopen("/dev/zero", "w")',
  59             VARIABLES_DISPLAYED_CORRECTLY,
  60             substrs=["FILE", "_close"],
  61         )
  62
  63         # Check that the AST log contains exactly one definition of __sFILE.
  64         f = open(log_file)
  65         log_lines = f.readlines()
  66         f.close()
  67         os.remove(log_file)
  68         self.assertEqual(" ".join(log_lines).count("struct __sFILE definition"), 1)
  69
  70         self.expect(
  71             "expr *myFile", VARIABLES_DISPLAYED_CORRECTLY, substrs=["a", "5", "b", "9"]
  72         )
  73
  74         self.expect(
  75             "expr MIN((uint64_t)2, (uint64_t)3)",
  76             VARIABLES_DISPLAYED_CORRECTLY,
  77             substrs=["uint64_t", "2"],
  78         )
  79
  80         self.expect(
  81             "expr stdin", VARIABLES_DISPLAYED_CORRECTLY, substrs=["(FILE *)", "0x"]
  82         )
  83
  84     def setUp(self):
  85         # Call super's setUp().
  86         TestBase.setUp(self)
  87         # Find the line number to break inside main().
  88         self.line = line_number("main.c", "// Set breakpoint 0 here.")