[libFuzzer] Improve Signal Handler interface.

Add new flags to FuzzingOptions to represent the different conditions
on the signal handling. These options are passed when calling
SetSignalHandler().
This changes simplify the implementation of Windows's exception
handling. Now we can define a unique handler for all the exceptions.

Differential Revision: https://reviews.llvm.org/D27238

llvm-svn: 289557

1 files changed, 8 insertions, 10 deletions

diff --git a/llvm/lib/Fuzzer/FuzzerDriver.cpp b/llvm/lib/Fuzzer/FuzzerDriver.cpp
index 2e94530e721..1ff822c6881 100644
--- a/llvm/lib/Fuzzer/FuzzerDriver.cpp
+++ b/llvm/lib/Fuzzer/FuzzerDriver.cpp
@@ -457,16 +457,14 @@ int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) {
 
   StartRssThread(F, Flags.rss_limit_mb);
 
-  // Timer
-  if (Flags.timeout > 0)
-    SetTimer(Flags.timeout / 2 + 1);
-  if (Flags.handle_segv) SetSigSegvHandler();
-  if (Flags.handle_bus) SetSigBusHandler();
-  if (Flags.handle_abrt) SetSigAbrtHandler();
-  if (Flags.handle_ill) SetSigIllHandler();
-  if (Flags.handle_fpe) SetSigFpeHandler();
-  if (Flags.handle_int) SetSigIntHandler();
-  if (Flags.handle_term) SetSigTermHandler();
+  Options.HandleAbrt = Flags.handle_abrt;
+  Options.HandleBus = Flags.handle_bus;
+  Options.HandleFpe = Flags.handle_fpe;
+  Options.HandleIll = Flags.handle_ill;
+  Options.HandleInt = Flags.handle_int;
+  Options.HandleSegv = Flags.handle_segv;
+  Options.HandleTerm = Flags.handle_term;
+  SetSignalHandler(Options);
 
   if (Flags.minimize_crash_internal_step)
     return MinimizeCrashInputInternalStep(F, Corpus);