art/sigchainlib/version-script.txt

{
global:
  ClaimSignalChain;
  UnclaimSignalChain;
  InvokeUserSignalHandler;
  InitializeSignalChain;
  EnsureFrontOfChain;
  SetSpecialSignalHandlerFn;
  sigaction;
  signal;
  sigprocmask;
local:
  *;
};