[PATCH v1 00/28] Rust core additions

[Miguel Ojeda <ojeda@kernel.org>]

This patch series is the first batch of changes to upstream the rest
of the Rust support.

In this instance, all the facilities introduced are part of the "Rust
core". They do not interact with the C side in new major ways (no new
C types used; only `strlen`, `memchr`, additional error codes and some
more `printk` format strings).

After this series, `str.rs` and `print.rs` are in sync with downstream
and all remaining proc macros have been added. `error.rs` is fairly
complete too, though a few more `pub(crate)` features will come later
(to avoid leaving dead code in-between series).

Note that a few temporary `#[allow(dead_code)]` attributes are used in
order to have a bit more freedom organizing the patches while keeping
all of them buildable without warnings/errors, but at the end of the
series there is none remaining (of the temporary ones).

Virtually all the code has been in linux-next for months and was part
of the Rust patch series before the trimming down (i.e. up to v8).

Each patch has been built-tested on a Rust-enabled `defconfig` with
`CLIPPY=1` on the `all`, `rustfmtcheck`, `rustdoc` and `rusttest`
targets.

Björn Roy Baron (1):
  rust: macros: add `concat_idents!` proc macro

Finn Behrens (1):
  rust: error: declare errors using macro

Gary Guo (9):
  rust: macros: add `#[vtable]` proc macro
  rust: macros: take string literals in `module!`
  rust: str: add `BStr` type
  rust: str: add `b_str!` macro
  rust: str: add `CStr` type
  rust: str: implement several traits for `CStr`
  rust: str: add `c_str!` macro
  rust: add `build_error` crate
  rust: build_assert: add `build_{error,assert}!` macros

Miguel Ojeda (7):
  rust: prelude: split re-exports into groups
  rust: print: add more `pr_*!` levels
  rust: print: add `pr_cont!` macro
  rust: samples: add `rust_print` example
  rust: alloc: add `RawVec::try_with_capacity_in()` constructor
  rust: alloc: add `Vec::try_with_capacity{,_in}()` constructors
  rust: static_assert: add `static_assert!` macro

Milan Landaverde (1):
  rust: str: add `CStr` unit tests

Niklas Mohrin (1):
  rust: std_vendor: add `dbg!` macro based on `std`'s one

Viktor Garske (1):
  rust: error: add codes from `errno-base.h`

Wedson Almeida Filho (7):
  rust: error: add `From` implementations for `Error`
  rust: prelude: add `error::code::*` constant items
  rust: str: add `Formatter` type
  rust: str: add `CString` type
  rust: str: add `fmt!` macro
  rust: types: add `Either` type
  rust: types: add `Opaque` type

 lib/Kconfig.debug                 |  16 +
 rust/Makefile                     |  22 +-
 rust/alloc/raw_vec.rs             |  33 +-
 rust/alloc/vec/mod.rs             |  89 +++++
 rust/build_error.rs               |  24 ++
 rust/exports.c                    |   5 +
 rust/kernel/build_assert.rs       |  82 +++++
 rust/kernel/error.rs              |  90 ++++-
 rust/kernel/lib.rs                |   9 +
 rust/kernel/prelude.rs            |  20 +-
 rust/kernel/print.rs              | 214 +++++++++++-
 rust/kernel/static_assert.rs      |  34 ++
 rust/kernel/std_vendor.rs         | 160 +++++++++
 rust/kernel/str.rs                | 532 +++++++++++++++++++++++++++++-
 rust/kernel/types.rs              |  37 +++
 rust/macros/concat_idents.rs      |  23 ++
 rust/macros/helpers.rs            |  24 +-
 rust/macros/lib.rs                | 108 +++++-
 rust/macros/module.rs             |  10 +-
 rust/macros/vtable.rs             |  95 ++++++
 samples/rust/Kconfig              |  10 +
 samples/rust/Makefile             |   1 +
 samples/rust/rust_minimal.rs      |   8 +-
 samples/rust/rust_print.rs        |  54 +++
 scripts/generate_rust_analyzer.py |   8 +-
 25 files changed, 1666 insertions(+), 42 deletions(-)
 create mode 100644 rust/build_error.rs
 create mode 100644 rust/kernel/build_assert.rs
 create mode 100644 rust/kernel/static_assert.rs
 create mode 100644 rust/kernel/std_vendor.rs
 create mode 100644 rust/kernel/types.rs
 create mode 100644 rust/macros/concat_idents.rs
 create mode 100644 rust/macros/vtable.rs
 create mode 100644 samples/rust/rust_print.rs


base-commit: f0c4d9fc9cc9462659728d168387191387e903cc
-- 
2.38.1