[llvm] [M68k] implement -mxgot (PR #119803)

[John Paul Adrian Glaubitz via llvm-commits]

glaubitz wrote:

I have applied the patch to Rust's LLVM compiler and then patched the `bootstrap.py` script as follows:

```diff
diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
index 40e08361a0f..c453a22ff0b 100644
--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -1117,6 +1117,9 @@ class RustBuild(object):
         if deny_warnings:
             env["RUSTFLAGS"] += " -Dwarnings"
 
+        if self.build_triple().startswith('m68k'):
+            env["RUSTFLAGS"] += " -Cllvm-args=-mxgot"
+
         # Add RUSTFLAGS_BOOTSTRAP to RUSTFLAGS for bootstrap compilation.
         # Note that RUSTFLAGS_BOOTSTRAP should always be added to the end of
         # RUSTFLAGS to be actually effective (e.g., if we have `-Dwarnings` in
```

Unfortunately, that doesn't work.

https://github.com/llvm/llvm-project/pull/119803