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### 8.2 Defining New Object Attributes

If you want to define a new GNU object attribute, here are the places you will need to modify. New attributes should be discussed on the ‘`binutils`’ mailing list.

- This manual, which is the official register of attributes.
- The header for your architecture `include/elf`, to define the tag.
- The `bfd` support file for your architecture, to merge the attribute and issue any appropriate link warnings.
- Test cases in `ld/testsuite` for merging and link warnings.
- `binutils/readelf.c` to display your attribute.
- GCC, if you want the compiler to mark the attribute automatically.