rust: proc-macro2: add `README.md`

Originally, when the Rust upstream `alloc` standard library crate was
vendored in commit 057b8d2571 ("rust: adapt `alloc` crate to the
kernel"), a `README.md` file was added to explain the provenance and
licensing of the source files.

Thus do the same for the `proc-macro2` crate.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Tested-by: Gary Guo <gary@garyguo.net>
Tested-by: Jesung Yang <y.j3ms.n@gmail.com>
Link: https://patch.msgid.link/20251124151837.2184382-10-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda 2025-11-24 16:18:21 +01:00
parent c2af0e5f02
commit bc1565efc3
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# `proc-macro2`
These source files come from the Rust `proc-macro2` crate, version
1.0.101 (released 2025-08-16), hosted in the
<https://github.com/dtolnay/proc-macro2> repository, licensed under
"Apache-2.0 OR MIT" and only modified to add the SPDX license
identifiers and to remove the `unicode-ident` dependency.
For copyright details, please see:
https://github.com/dtolnay/proc-macro2/blob/1.0.101/README.md#license
https://github.com/dtolnay/proc-macro2/blob/1.0.101/LICENSE-APACHE
https://github.com/dtolnay/proc-macro2/blob/1.0.101/LICENSE-MIT