[clang] [Hexagon] Non-pie default on hexagon-unknown-elf (PR #193184)

[Brian Cain via cfe-commits]

================
@@ -117,6 +117,10 @@ class LLVM_LIBRARY_VISIBILITY HexagonToolChain : public Linux {
 
   std::string getCompilerRTPath() const override;
 
+  bool isPIEDefault(const llvm::opt::ArgList &Args) const override {
+    return getTriple().isOSLinux() && Linux::isPIEDefault(Args);
----------------
androm3da wrote:

This looks effective but I'm not sure whether it's right.  Is QuRT exceptional in its anti-PIE-ness or is Linux exceptional in its PIE-ness?  What would we do for H2 OS?  Zephyr?

Should it be

```c++
    return !getTriple().isOSQurt();
```

instead?

https://github.com/llvm/llvm-project/pull/193184