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"""
Test that breakpoint works correctly in the presence of dead-code stripping.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
import lldbutil
class DeadStripTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@skipUnlessDarwin
@dsym_test
def test_with_dsym(self):
"""Test breakpoint works correctly with dead-code stripping."""
self.buildDsym()
self.dead_strip()
@skipIfFreeBSD # The -dead_strip linker option isn't supported on FreeBSD versions of ld.
@dwarf_test
def test_with_dwarf(self):
"""Test breakpoint works correctly with dead-code stripping."""
self.buildDwarf()
self.dead_strip()
def dead_strip(self):
"""Test breakpoint works correctly with dead-code stripping."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break by function name f1 (live code).
lldbutil.run_break_set_by_symbol (self, "f1", num_expected_locations=1, module_name="a.out")
# Break by function name f2 (dead code).
lldbutil.run_break_set_by_symbol (self, "f2", num_expected_locations=0, module_name="a.out")
# Break by function name f3 (live code).
lldbutil.run_break_set_by_symbol (self, "f3", num_expected_locations=1, module_name="a.out")
self.runCmd("run", RUN_FAILED)
# The stop reason of the thread should be breakpoint (breakpoint #1).
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'a.out`f1',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f 1", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
self.runCmd("continue")
# The stop reason of the thread should be breakpoint (breakpoint #3).
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'a.out`f3',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f 3", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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