[compiler-rt] [sanitizer] Add cloak_sanitizer_signal_handlers runtime option (PR #162746)

[Vitaly Buka via llvm-commits]

================
@@ -24,6 +24,9 @@ namespace __sanitizer {
 
 const char *SanitizerToolName = "SanitizerTool";
 
+const int MaxSignals = 64;
----------------
vitalybuka wrote:


```
max(
MaybeInstallSigaction(SIGSEGV, handler);
  MaybeInstallSigaction(SIGBUS, handler);
  MaybeInstallSigaction(SIGABRT, handler);
  MaybeInstallSigaction(SIGFPE, handler);
  MaybeInstallSigaction(SIGILL, handler);
  MaybeInstallSigaction(SIGTRAP, handler);
) + 1
```

https://github.com/llvm/llvm-project/pull/162746