1 files changed, 78 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/main.cpp b/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/main.cpp
new file mode 100644
index 000000000000..8434458f0648
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/thread/create_after_attach/main.cpp
@@ -0,0 +1,78 @@
+#include <stdio.h>
+#include <chrono>
+#include <thread>
+
+using std::chrono::microseconds;
+
+#if defined(__linux__)
+#include <sys/prctl.h>
+#endif
+
+volatile int g_thread_2_continuing = 0;
+
+void *
+thread_1_func (void *input)
+{
+    // Waiting to be released by the debugger.
+    while (!g_thread_2_continuing) // Another thread will change this value
+    {
+        std::this_thread::sleep_for(microseconds(1));
+    }
+
+    // Return
+    return NULL;  // Set third breakpoint here
+}
+
+void *
+thread_2_func (void *input)
+{
+    // Waiting to be released by the debugger.
+    int child_thread_continue = 0;
+    while (!child_thread_continue) // The debugger will change this value
+    {
+        std::this_thread::sleep_for(microseconds(1));  // Set second breakpoint here
+    }
+
+    // Release thread 1
+    g_thread_2_continuing = 1;
+
+    // Return
+    return NULL;
+}
+
+int main(int argc, char const *argv[])
+{
+#if defined(__linux__)
+    // Immediately enable any ptracer so that we can allow the stub attach
+    // operation to succeed.  Some Linux kernels are locked down so that
+    // only an ancestor process can be a ptracer of a process.  This disables that
+    // restriction.  Without it, attach-related stub tests will fail.
+#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
+    int prctl_result;
+
+    // For now we execute on best effort basis.  If this fails for
+    // some reason, so be it.
+    prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
+    (void) prctl_result;
+#endif
+#endif
+
+    // Create a new thread
+    std::thread thread_1(thread_1_func, nullptr);
+
+    // Waiting to be attached by the debugger.
+    int main_thread_continue = 0;
+    while (!main_thread_continue) // The debugger will change this value
+    {
+        std::this_thread::sleep_for(microseconds(1));  // Set first breakpoint here
+    }
+
+    // Create another new thread
+    std::thread thread_2(thread_2_func, nullptr);
+
+    // Wait for the threads to finish.
+    thread_1.join();
+    thread_2.join();
+
+    printf("Exiting now\n");
+}