tree e4b9eb58f934ed04bf1a3a82499c78fa7452bcd7
parent a68a7cf8f3a6fef22d71a14350176115cb13857f
author Dmitriy Ivanov <dimitry@google.com> 1428024622 -0700
committer Dimitry Ivanov <dimitry@google.com> 1428081259 +0000

Delegate SIG_DFL on sigaction to libc.

  In the case when user registers SIG_DFL hanlder
  sigchainlib's handler tends to go into infinite loop
  because the function handling signals resets signal
  using by calling to signchain's own implementation.

  This cl fixes the problem by passing sigcations with
  SIG_DFL to the next sigaction (usually libc's).

Bug: 19594886
Change-Id: I9eecf9afd1c7e6d1fe3cd1d4fc506383ecbebe04