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"""
Test the SB API SBFrame::GuessLanguage.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class TestFrameGuessLanguage(TestBase):
mydir = TestBase.compute_mydir(__file__)
# If your test case doesn't stress debug info, the
# set this to true. That way it won't be run once for
# each debug info format.
NO_DEBUG_INFO_TESTCASE = True
@skipIf(compiler="clang", compiler_version=['<', '10.0'])
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr37658")
def test_guess_language(self):
"""Test GuessLanguage for C and C++."""
self.build()
self.do_test()
def check_language(self, thread, frame_no, test_lang):
frame = thread.frames[frame_no]
self.assertTrue(frame.IsValid(), "Frame %d was not valid."%(frame_no))
lang = frame.GuessLanguage()
self.assertEqual(lang, test_lang)
def do_test(self):
"""Test GuessLanguage for C & C++."""
target = self.createTestTarget()
# Now create a breakpoint in main.c at the source matching
# "Set a breakpoint here"
breakpoint = target.BreakpointCreateBySourceRegex(
"Set breakpoint here", lldb.SBFileSpec("somefunc.c"))
self.assertTrue(breakpoint and
breakpoint.GetNumLocations() >= 1,
VALID_BREAKPOINT)
error = lldb.SBError()
# This is the launch info. If you want to launch with arguments or
# environment variables, add them using SetArguments or
# SetEnvironmentEntries
launch_info = target.GetLaunchInfo()
process = target.Launch(launch_info, error)
self.assertTrue(process, PROCESS_IS_VALID)
# Did we hit our breakpoint?
from lldbsuite.test.lldbutil import get_threads_stopped_at_breakpoint
threads = get_threads_stopped_at_breakpoint(process, breakpoint)
self.assertEqual(
len(threads), 1,
"There should be a thread stopped at our breakpoint")
# The hit count for the breakpoint should be 1.
self.assertEquals(breakpoint.GetHitCount(), 1)
thread = threads[0]
c_frame_language = lldb.eLanguageTypeC99
cxx_frame_language = lldb.eLanguageTypeC_plus_plus_11
# gcc emits DW_LANG_C89 even if -std=c99 was specified
if "gcc" in self.getCompiler():
c_frame_language = lldb.eLanguageTypeC89
cxx_frame_language = lldb.eLanguageTypeC_plus_plus
self.check_language(thread, 0, c_frame_language)
self.check_language(thread, 1, cxx_frame_language)
self.check_language(thread, 2, lldb.eLanguageTypeC_plus_plus)
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