================
@@ -0,0 +1,59 @@
+"""
+Test that the process continues running after we detach from it.
+"""
+
+import lldb
+import time
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class DetachResumesTestCase(TestBase):
+ NO_DEBUG_INFO_TESTCASE = True
+
+ def test_detach_resumes(self):
+ self.build()
+ exe = self.getBuildArtifact()
+
+ # The inferior will use this file to let us know it is ready to be
+ # attached.
+ sync_file_path = lldbutil.append_to_process_working_directory(
+ self, "sync_file_%d" % (int(time.time()))
+ )
+
+ # And this one to let us know it is running after we've detached from
+ # it.
+ exit_file_path = lldbutil.append_to_process_working_directory(
+ self, "exit_file_%d" % (int(time.time()))
+ )
+
+ popen = self.spawnSubprocess(
+ self.getBuildArtifact(exe), [sync_file_path, exit_file_path]
+ )
+ lldbutil.wait_for_file_on_target(self, sync_file_path)
+
+ self.runCmd("process attach -p " + str(popen.pid))
+
+ # Set a breakpoint at a place that will be called by multiple threads
+ # simultaneously. On systems (e.g. linux) where the debugger needs to
+ # send signals to suspend threads, these signals will race with threads
+ # hitting the breakpoint (and stopping on their own).
+ bpno = lldbutil.run_break_set_by_symbol(self, "break_here")
+
+ # And let the inferior know it can call the function.
+ self.runCmd("expr -- wait_for_debugger_flag = false")
+
+ self.runCmd("continue")
+
+ self.expect(
+ "thread list",
+ STOPPED_DUE_TO_BREAKPOINT,
+ substrs=["stopped", "stop reason = breakpoint"],
+ )
+
+ # Detach, the process should keep running after this, and not be
stopped
+ # by the signals that the debugger may have used to suspend the
threads.
+ self.runCmd("detach")
+
+ lldbutil.wait_for_file_on_target(self, exit_file_path)
----------------
DavidSpickett wrote:
I presume the test working dir gets cleaned up automatically between runs?
https://github.com/llvm/llvm-project/pull/88494
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