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Author SHA1 Message Date
Matthew Maurer
bad098d768 rust: Ignore preserve-most functions 
Neither bindgen nor Rust know about the preserve-most calling
convention, and Clang describes it as unstable. Since we aren't using
functions with this calling convention from Rust, blocklist them.

These functions are only added to the build when list hardening is
enabled, which is likely why others didn't notice this yet.

Signed-off-by: Matthew Maurer <mmaurer@google.com>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20231031201945.1412345-1-mmaurer@google.com
[ Used Markdown for consistency with the other comments in the file. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
 2023-12-13 01:09:55 +01:00
Arnaldo Carvalho de Melo
3098cb655e rust: bindgen: Add alt_instr as opaque type 
To address this build error:

    BINDGEN rust/bindings/bindings_generated.rs
    BINDGEN rust/bindings/bindings_helpers_generated.rs
    EXPORTS rust/exports_core_generated.h
    RUSTC P rust/libmacros.so
    RUSTC L rust/compiler_builtins.o
    RUSTC L rust/alloc.o
    RUSTC L rust/bindings.o
    RUSTC L rust/build_error.o
    EXPORTS rust/exports_alloc_generated.h
  error[E0588]: packed type cannot transitively contain a `#[repr(align)]` type
       --> /var/home/acme/git/linux/rust/bindings/bindings_generated.rs:10094:1
        |
  10094 | / pub struct alt_instr {
  10095 | |     pub instr_offset: s32,
  10096 | |     pub repl_offset: s32,
  10097 | |     pub __bindgen_anon_1: alt_instr__bindgen_ty_1,
  10098 | |     pub instrlen: u8_,
  10099 | |     pub replacementlen: u8_,
  10100 | | }
        | |_^
        |
  note: `alt_instr__bindgen_ty_1__bindgen_ty_1` has a `#[repr(align)]` attribute
       --> /var/home/acme/git/linux/rust/bindings/bindings_generated.rs:10111:1
        |
  10111 | / pub struct alt_instr__bindgen_ty_1__bindgen_ty_1 {
  10112 | |     pub _bitfield_1: __BindgenBitfieldUnit<[u8; 4usize], u16>,
  10113 | | }
        | |_^
  note: `alt_instr` contains a field of type `alt_instr__bindgen_ty_1`
       --> /var/home/acme/git/linux/rust/bindings/bindings_generated.rs:10097:9
        |
  10097 |     pub __bindgen_anon_1: alt_instr__bindgen_ty_1,
        |         ^^^^^^^^^^^^^^^^
  note: ...which contains a field of type `alt_instr__bindgen_ty_1__bindgen_ty_1`
       --> /var/home/acme/git/linux/rust/bindings/bindings_generated.rs:10104:9
        |
  10104 |     pub __bindgen_anon_1: alt_instr__bindgen_ty_1__bindgen_ty_1,
        |         ^^^^^^^^^^^^^^^^

  error: aborting due to previous error

  For more information about this error, try `rustc --explain E0588`.
  make[1]: *** [rust/Makefile:389: rust/bindings.o] Error 1
  make: *** [Makefile:1293: prepare] Error 2

Cc: Derek Barbosa <debarbos@redhat.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fixes: 5d1dd961e7 ("x86/alternatives: Add alt_instr.flags")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
 2023-03-02 22:44:15 +01:00
Miguel Ojeda
2f7ab1267d Kbuild: add Rust support 
Having most of the new files in place, we now enable Rust support
in the build system, including `Kconfig` entries related to Rust,
the Rust configuration printer and a few other bits.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Finn Behrens <me@kloenk.de>
Signed-off-by: Finn Behrens <me@kloenk.de>
Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Co-developed-by: Sven Van Asbroeck <thesven73@gmail.com>
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Co-developed-by: Douglas Su <d0u9.su@outlook.com>
Signed-off-by: Douglas Su <d0u9.su@outlook.com>
Co-developed-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Signed-off-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Co-developed-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Signed-off-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Co-developed-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Co-developed-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Signed-off-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Co-developed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
 2022-09-28 09:02:20 +02:00