================
@@ -0,0 +1,116 @@
+"""
+Make sure that the concurrent vfork() from multiple threads works correctly.
+"""
+
+
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+
+
+class TestConcurrentVFork(TestBase):
+ NO_DEBUG_INFO_TESTCASE = True
+
+ def get_pid_from_variable(self, target):
+ return target.FindFirstGlobalVariable("g_pid").GetValueAsUnsigned()
+
+ def build_run_to_breakpoint(self, use_fork, call_exec):
+ self.build()
+
+ args = []
+ if use_fork:
+ args.append("--fork")
+ if call_exec:
+ args.append("--exec")
+ launch_info = lldb.SBLaunchInfo(args)
+ launch_info.SetWorkingDirectory(self.getBuildDir())
+
+ return lldbutil.run_to_source_breakpoint(
+ self, "// break here", lldb.SBFileSpec("main.cpp")
+ )
+
+ def follow_parent_helper(self, use_fork, call_exec):
+ (target, process, thread, bkpt) = self.build_run_to_breakpoint(
+ use_fork, call_exec
+ )
+
+ parent_pid = self.get_pid_from_variable(target)
----------------
clayborg wrote:
Only one caller to this function, inline the code:
```
parent_pid = target.FindFirstGlobalVariable("g_pid").GetValueAsUnsigned()
```
https://github.com/llvm/llvm-project/pull/81564
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