[Lldb-commits] [lldb] [lldb] checks beforehand if lldb can trace/attach a process on FreeBSD. (PR #79662)

[David CARLIER via lldb-commits]

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@@ -48,14 +48,37 @@ static Status EnsureFDFlags(int fd, int flags) {
   return error;
 }
 
+static Status CanTrace() {
+  Status status;
+  int proc_debug, ret;
+  size_t len = sizeof(proc_debug);
+  ret = ::sysctlbyname("security.bsd.unprivileged_proc_debug", &proc_debug,
+                       &len, nullptr, 0);
+  if (ret != 0)
+    return Status("sysctlbyname() security.bsd.unprivileged_proc_debug failed");
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devnexen wrote:

since a long time :) e.g. even 9.0, EOL since more than a decade, had it.

https://github.com/llvm/llvm-project/pull/79662