This fixes issues on Android where applications use these signals in their normal course of execution. The Mono C# framework uses SIGXCPU for garbage collection, and ART uses SIGSEGV, SIGQUIT, and SIGUSR1. Bug 27555932 Change-Id: I4977b8f0419da660a57a8eeef20a7fe747921a63 Reviewed-on: https://swiftshader-review.googlesource.com/5345Reviewed-by: Greg Hartman <ghartman@google.com> Reviewed-by: Nicolas Capens <capn@google.com> Tested-by: Nicolas Capens <capn@google.com>
