[lld] [lld] Add target support for SystemZ (s390x) (PR #75643)

[Fangrui Song via llvm-commits]

================
@@ -0,0 +1,29 @@
+# REQUIRES: systemz
+# RUN: llvm-mc -filetype=obj -triple=s390x-unknown-linux %s -o %t
+# RUN: ld.lld -m elf64_s390 %t -o %t2
+# RUN: llvm-readelf --file-header %t2 | FileCheck %s
+# RUN: ld.lld %t -o %t3
+# RUN: llvm-readelf --file-header %t3 | FileCheck %s
+# RUN: echo 'OUTPUT_FORMAT(elf64-s390)' > %t.script
+# RUN: ld.lld %t.script  %t -o %t4
+# RUN: llvm-readelf --file-header %t4 | FileCheck %s
+
+// CHECK:       ELF Header:
----------------
MaskRay wrote:

Use `# ` for comments

https://github.com/llvm/llvm-project/pull/75643