mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
08ab786556
In LLVM 16, anonymous items may return names like `(unnamed union at ..)`
rather than empty names [1], which breaks Rust-enabled builds because
bindgen assumed an empty name instead of detecting them via
`clang_Cursor_isAnonymous` [2]:
$ make rustdoc LLVM=1 CLIPPY=1 -j$(nproc)
RUSTC L rust/core.o
BINDGEN rust/bindings/bindings_generated.rs
BINDGEN rust/bindings/bindings_helpers_generated.rs
BINDGEN rust/uapi/uapi_generated.rs
thread 'main' panicked at '"ftrace_branch_data_union_(anonymous_at__/_/include/linux/compiler_types_h_146_2)" is not a valid Ident', .../proc-macro2-1.0.24/src/fallback.rs:693:9
...
thread 'main' panicked at '"ftrace_branch_data_union_(anonymous_at__/_/include/linux/compiler_types_h_146_2)" is not a valid Ident', .../proc-macro2-1.0.24/src/fallback.rs:693:9
...
This was fixed in bindgen 0.62.0. Therefore, upgrade bindgen to
a more recent version, 0.65.1, to support LLVM 16.
Since bindgen 0.58.0 changed the `--{white,black}list-*` flags to
`--{allow,block}list-*` [3], update them on our side too.
In addition, bindgen 0.61.0 moved its CLI utility into a binary crate
called `bindgen-cli` [4]. Thus update the installation command in the
Quick Start guide.
Moreover, bindgen 0.61.0 changed the default functionality to bind
`size_t` to `usize` [5] and added the `--no-size_t-is-usize` flag
to not bind `size_t` as `usize`. Then bindgen 0.65.0 removed
the `--size_t-is-usize` flag [6]. Thus stop passing the flag to bindgen.
Finally, bindgen 0.61.0 added support for the `noreturn` attribute (in
its different forms) [7]. Thus remove the infinite loop in our Rust
panic handler after calling `BUG()`, since bindgen now correctly
generates a `BUG()` binding that returns `!` instead of `()`.
Link: 19e984ef8f [1]
Link: https://github.com/rust-lang/rust-bindgen/pull/2319 [2]
Link: https://github.com/rust-lang/rust-bindgen/pull/1990 [3]
Link: https://github.com/rust-lang/rust-bindgen/pull/2284 [4]
Link: cc78b6fdb6 [5]
Link: https://github.com/rust-lang/rust-bindgen/pull/2408 [6]
Link: https://github.com/rust-lang/rust-bindgen/issues/2094 [7]
Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com>
Closes: https://github.com/Rust-for-Linux/linux/issues/1013
Tested-by: Ariel Miculas <amiculas@cisco.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com
[ Reworded commit message. Mentioned the `bindgen-cli` binary crate
change, linked to it and updated the Quick Start guide. Re-added a
deleted "as" word in a code comment and reflowed comment to respect
the maximum length. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
44 lines
577 B
Bash
Executable File
44 lines
577 B
Bash
Executable File
#!/bin/sh
|
|
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# Print the minimum supported version of the given tool.
|
|
# When you raise the minimum version, please update
|
|
# Documentation/process/changes.rst as well.
|
|
|
|
set -e
|
|
|
|
if [ $# != 1 ]; then
|
|
echo "Usage: $0 toolname" >&2
|
|
exit 1
|
|
fi
|
|
|
|
case "$1" in
|
|
binutils)
|
|
echo 2.25.0
|
|
;;
|
|
gcc)
|
|
if [ "$ARCH" = parisc64 ]; then
|
|
echo 12.0.0
|
|
else
|
|
echo 5.1.0
|
|
fi
|
|
;;
|
|
llvm)
|
|
if [ "$SRCARCH" = s390 ]; then
|
|
echo 15.0.0
|
|
else
|
|
echo 11.0.0
|
|
fi
|
|
;;
|
|
rustc)
|
|
echo 1.71.1
|
|
;;
|
|
bindgen)
|
|
echo 0.65.1
|
|
;;
|
|
*)
|
|
echo "$1: unknown tool" >&2
|
|
exit 1
|
|
;;
|
|
esac
|