| """Test that the expedited thread pc values are not re-fetched by lldb.""" |
| |
| import subprocess |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| file_index = 0 |
| |
| |
| class TestExpeditedThreadPCs(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| @skipUnlessDarwin |
| def test_expedited_thread_pcs(self): |
| TestBase.setUp(self) |
| |
| global file_index |
| ++file_index |
| logfile = os.path.join( |
| self.getBuildDir(), |
| "packet-log-" + self.getArchitecture() + "-" + str(file_index) + ".txt", |
| ) |
| self.runCmd("log enable -f %s gdb-remote packets" % (logfile)) |
| |
| def cleanup(): |
| self.runCmd("log disable gdb-remote packets") |
| if os.path.exists(logfile): |
| os.unlink(logfile) |
| |
| self.addTearDownHook(cleanup) |
| |
| self.source = "main.cpp" |
| self.build() |
| (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint( |
| self, "break here", lldb.SBFileSpec(self.source, False) |
| ) |
| |
| # verify that libfoo.dylib hasn't loaded yet |
| for m in target.modules: |
| self.assertNotEqual(m.GetFileSpec().GetFilename(), "libfoo.dylib") |
| |
| thread.StepInto() |
| thread.StepInto() |
| |
| thread.StepInto() |
| thread.StepInto() |
| thread.StepInto() |
| |
| # verify that libfoo.dylib has loaded |
| for m in target.modules: |
| if m.GetFileSpec().GetFilename() == "libfoo.dylib": |
| found_libfoo = True |
| self.assertTrue(found_libfoo) |
| |
| thread.StepInto() |
| thread.StepInto() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| thread.StepOver() |
| |
| process.Kill() |
| |
| # Confirm that we never fetched the pc for any threads during |
| # this debug session. |
| if os.path.exists(logfile): |
| f = open(logfile) |
| lines = f.readlines() |
| num_errors = 0 |
| for line in lines: |
| arch = self.getArchitecture() |
| if arch == "arm64" or arch == "arm64_32": |
| # <reg name="pc" regnum="32" offset="256" bitsize="64" group="general" group_id="1" ehframe_regnum="32" dwarf_regnum="32" generic="pc"/> |
| # A fetch of $pc on arm64 looks like |
| # < 22> send packet: $p20;thread:91698e;#70 |
| self.assertNotIn("$p20;thread", line) |
| else: |
| # <reg name="rip" regnum="16" offset="128" bitsize="64" group="general" altname="pc" group_id="1" ehframe_regnum="16" dwarf_regnum="16" generic="pc"/> |
| # A fetch of $pc on x86_64 looks like |
| # < 22> send packet: $p10;thread:91889c;#6f |
| self.assertNotIn("$p10;thread", line) |
| |
| f.close() |
