[llvm] [llvm-objcopy] Add llvm-objcopy option --set-visibility-sym (PR #80872)

[James Henderson via llvm-commits]

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@@ -0,0 +1,43 @@
+
+# RUN: yaml2obj %s -o %t.o
+# RUN: echo 'foo' > %t.symbols
+
+# Check if passing an invalid visibility type generates an error message
+# RUN: not llvm-objcopy %t.o --set-symbols-visibility=%t.symbols=invalid-type --regex 2>&1 | FileCheck %s --check-prefix=TYPE
+# RUN: not llvm-objcopy %t.o --set-symbol-visibility=foo=invalid-type --regex 2>&1 | FileCheck %s --check-prefix=TYPE
+# TYPE: error: 'invalid-type' is not a valid symbol visibility
+
+# Check if using the option multiple times generates an error message
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jh7370 wrote:

I don't think this should be an error. Instead, I think we should just accept the last option, like we do for most things. Was this behaviour copied from another case?

https://github.com/llvm/llvm-project/pull/80872