[compiler-rt] [sanitizer] Disable writes to log files for binaries in a secure context. (PR #92593)

[Florian Mayer via llvm-commits]

================
@@ -518,6 +518,12 @@ bool IsStateDetached(int state) {
   return state == PTHREAD_CREATE_DETACHED;
 }
 
+#  if !SANITIZER_LINUX
----------------
fmayer wrote:

Wouldn't it be easier to put all code here, and make it:

```
bool ShouldTreatRuntimeSecurely() {
#ifdef SANITIZER_LINUX
  if (&getauxval)
    return getauxval(/* AT_SECURE */ 23) != 0;
#endif
  return getuid() == geteuid() && getgid() == getegid();
}
```

https://github.com/llvm/llvm-project/pull/92593