Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lldb/packages/Python/lldbsuite/test/api/multiple-targets/Makefile

@@ -0,0 +1,8 @@
+LEVEL = ../../make
+
+MAKE_DSYM := NO
+
+ENABLE_THREADS := YES
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/api/multiple-targets/TestMultipleTargets.py

@@ -0,0 +1,44 @@
+"""Test the lldb public C++ api when creating multiple targets simultaneously."""
+
+from __future__ import print_function
+
+
+import os
+import re
+import subprocess
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class TestMultipleTargets(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+    NO_DEBUG_INFO_TESTCASE = True
+
+    @skipIfNoSBHeaders
+    @skipIfHostIncompatibleWithRemote
+    @expectedFailureAll(
+        oslist=["windows", "freebsd"],
+        bugnumber="llvm.org/pr20282")
+    def test_multiple_targets(self):
+        env = {self.dylibPath: self.getLLDBLibraryEnvVal()}
+
+        self.driver_exe = os.path.join(os.getcwd(), "multi-target")
+        self.buildDriver('main.cpp', self.driver_exe)
+        self.addTearDownHook(lambda: os.remove(self.driver_exe))
+        self.signBinary(self.driver_exe)
+
+# check_call will raise a CalledProcessError if multi-process-driver doesn't return
+# exit code 0 to indicate success.  We can let this exception go - the test harness
+# will recognize it as a test failure.
+
+        if self.TraceOn():
+            print("Running test %s" % self.driver_exe)
+            check_call([self.driver_exe, self.driver_exe], env=env)
+        else:
+            with open(os.devnull, 'w') as fnull:
+                check_call([self.driver_exe, self.driver_exe],
+                           env=env, stdout=fnull, stderr=fnull)

external/llvm-project/lldb/packages/Python/lldbsuite/test/api/multiple-targets/main.cpp

@@ -0,0 +1,31 @@
+#include <thread>
+
+#include "lldb/API/LLDB.h"
+#include "lldb/API/SBDebugger.h"
+#include "lldb/API/SBTarget.h"
+
+using namespace lldb;
+int main (int argc, char **argv)
+{
+  // We are expecting the program path and a path to an executable to load
+  if (argc != 2)
+    return 1;
+  const char *program_file = argv[1];
+  SBDebugger::Initialize();
+  SBDebugger debugger = SBDebugger::Create(false);
+  auto lambda = [&](){
+    SBError error;
+    SBTarget target = debugger.CreateTarget(program_file, nullptr, nullptr, 
+                                            false, error);
+  };
+
+  // Create 3 targets at the same time and make sure we don't crash.
+  std::thread thread1(lambda);
+  std::thread thread2(lambda);
+  std::thread thread3(lambda);
+  thread1.join();
+  thread2.join();
+  thread3.join();
+  SBDebugger::Terminate();
+  return 0;
+}