clang: Detect anonymous items explicitly, rather than relying on empty names. #2319

emilio · 2022-10-22T11:23:22Z

In Clang 16, anonymous items may return names like (anonymous union at ..) rather than empty names.

The right way to detect them is using clang_Cursor_isAnonymous.

…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>

Summary: Both waiting-in PRs have been merged and released: - rust-lang/rust-bindgen#2319 - rust-lang/rust-bindgen#2326 Adding `artifact = "bin"` removes the need for the `lib.rs` patch: - fbsource/bindgen@3579276 Reviewed By: jsgf Differential Revision: D44301594 fbshipit-source-id: d5ac1b54b099655e8e87974e42439bcd32aa5aed

userfaultfd-sys fails to build <linux/userfaultfd.h> header file with newer clang. Newer bindgen have fix for it rust-lang/rust-bindgen#2319

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Reported-by: Josh Poimboeuf <jpoimboe@kernel.org> Closes: https://lore.kernel.org/rust-for-linux/20230606215212.r7if2gsynajugf6j@treble/ Reported-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Closes: Rust-for-Linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [ Reword, add Josh's report and update Quick Start guide. ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: #1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com>

With clang LLVM 16 rust-bindgen 0.56.0 is too old, see rust-lang/rust-bindgen#2319 rust-lang/rust-bindgen#2312 rust-lang/rust-bindgen#2488 rust-lang/rust-bindgen#2339 rust-lang/rust-bindgen#2325

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: #1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: #1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux/linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux/linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

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: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2284 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Link: rust-lang/rust-bindgen#2094 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Closes: Rust-for-Linux#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>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux/linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

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: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2284 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Link: rust-lang/rust-bindgen#2094 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Closes: Rust-for-Linux#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>

* Rationale: Upgrades bindgen to code-generation for anonymous unions, structs, and enums [7] for LLVM-16 based toolchains. The following upgrade also incorporates `noreturn` support from bindgen allowing us to remove useless `loop` calls which was placed as a workaround. * Truncated build logs on using bindgen `v0.56.0` prior to LLVM-16 toolchain: ``` $ 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 ... ``` * LLVM-16 Changes: API changes [1] were introduced such that libclang would emit names like "(unnamed union at compiler_types.h:146:2)" for unnamed unions, structs, and enums whereas it previously returned an empty string. * Bindgen Changes: Bindgen `v0.56.0` on LLVM-16 based toolchains hence was unable to process the anonymous union in `include/linux/compiler_types` `struct ftrace_branch_data` and caused subsequent panics as the new `libclang` API emitted name was not being handled. The following issue was fixed in Bindgen `v0.62.0` [2]. Bindgen `v0.58.0` changed the flags `--whitelist-*` and `--blacklist-*` to `--allowlist-*` and `--blocklist-*` respectively [3]. Bindgen `v0.61.0` added support for `_Noreturn`, `[[noreturn]]`, `__attribute__((noreturn))` [4], hence the empty `loop`s used to circumvent bindgen returning `!` in place of `()` for noreturn attributes have been removed completely. Bindgen `v0.61.0` also changed default functionality to bind `size_t` to `usize` [5] and added the `--no-size_t-is-usize` [5] flag to not bind `size_t` as `usize`. Bindgen `v0.65.0` removed `--size_t-is-usize` flag [6]. Link: llvm/llvm-project@19e984e [1] Link: rust-lang/rust-bindgen#2319 [2] Link: rust-lang/rust-bindgen#1990 [3] Link: rust-lang/rust-bindgen#2094 [4] Link: rust-lang/rust-bindgen@cc78b6f [5] Link: rust-lang/rust-bindgen#2408 [6] Closes: Rust-for-Linux/linux#1013 [7] Signed-off-by: Aakash Sen Sharma <aakashsensharma@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Tested-by: Ariel Miculas <amiculas@cisco.com> Link: https://lore.kernel.org/r/20230612194311.24826-1-aakashsensharma@gmail.com [boqun: resolve conflicts because of Rust version bump] Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

…ikh fork Summary: Loopdev depends on an old version of bindgen (0.59) which is incompatible with LLVM 16+ due to not containing [rust-bindgen#2319](rust-lang/rust-bindgen#2319), which is in bindgen 0.62. This diff switches to a fork which is forked from upstream's master branch and uses bindgen 0.63. The fork contains only the following changes beyond what has already been merged into loopdev (but never released) by the loopdev maintainer. ``` diff loopdev/Cargo.toml loopdev-erikh/Cargo.toml.orig 2c2 < name = "loopdev" --- > name = "loopdev-erikh" 5c5 < authors = ["Michael Daffin <michael@daffin.io>"] --- > authors = ["Erik Hollensbe <erik@hollensbe.org>", "Michael Daffin <michael@daffin.io>"] 7,8c7,8 < documentation = "https://docs.rs/loopdev" < repository = "https://github.com/mdaffin/loopdev" --- > documentation = "https://docs.rs/loopdev-erikh" > repository = "https://github.com/erikh/loopdev" 13,15d12 < [badges] < build = { status = "https://github.com/mdaffin/loopdev/actions/workflows/ci.yml/badge.svg" } < 20,21c17,18 < errno = "0.2.8" < libc = "0.2.105" --- > errno = "^0.2" > libc = "^0.2" 24c21 < bindgen = { version = "0.63.0", default-features = false, features = ["runtime"] } --- > bindgen = { version = "^0.63", default-features = false, features = ["runtime"] } 27,32c24,29 < glob = "0.3.0" < gpt = "3.0.0" < lazy_static = "1.4.0" < serde = { version = "1.0.130", features = ["derive"] } < serde_json = "1.0.68" < tempfile = "3.2.0" --- > glob = "^0.3" > gpt = "^3" > lazy_static = "^1.4" > serde = { version = "^1", features = ["derive"] } > serde_json = "^1" > tempfile = "^3" diff loopdev/LICENSE loopdev-erikh/LICENSE 2a3 > Copyright (c) 2023 Erik Hollensbe ``` Test Plan: - `$ common/rust/tools/scripts/third-party-check.sh` --- - `$ buck2 build fbsource//third-party/rust:loopdev` (with and without LLVM staging) To obtain LLVM staging: - `$ hg graft -r remote/scratch/server-llvm/staging -t :other` **Before:** works only on LLVM 15. LLVM 18: ``` Action failed: fbsource//third-party/rust:loopdev-0.4.0-build-script-run (buildscript) thread 'main' panicked at '"enum_(unnamed_at_/usr/include/linux/loop_h_21_1)" is not a valid Ident', third-party/rust/vendor/bindgen-0.59.2/src/ir/context.rs:878:9 stack backtrace: 0: rust_begin_unwind at /home/engshare/third-party2/rust/1.72.1+llvm.15/src/build-platform010/build/rustc-1.72.1-src/library/std/src/panicking.rs:593:5 1: core::panicking::panic_fmt at /home/engshare/third-party2/rust/1.72.1+llvm.15/src/build-platform010/build/rustc-1.72.1-src/library/core/src/panicking.rs:67:14 2: validate_ident at ./third-party/rust/vendor/proc-macro2-1.0.70/src/fallback.rs:828:9 3: <proc_macro2::fallback::Ident>::new_checked at ./third-party/rust/vendor/proc-macro2-1.0.70/src/fallback.rs:760:9 4: <proc_macro2::imp::Ident>::new_checked at ./third-party/rust/vendor/proc-macro2-1.0.70/src/wrapper.rs:646:50 5: <proc_macro2::Ident>::new at ./third-party/rust/vendor/proc-macro2-1.0.70/src/lib.rs:955:21 6: <bindgen::ir::context::BindgenContext>::rust_ident_raw::<alloc::borrow::Cow<str>> at ./third-party/rust/vendor/bindgen-0.59.2/src/ir/context.rs:878:9 7: <bindgen::ir::context::BindgenContext>::rust_ident::<&alloc::string::String> at ./third-party/rust/vendor/bindgen-0.59.2/src/ir/context.rs:870:9 8: codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:2907:21 9: codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:1004:39 10: codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:492:17 11: <bindgen::ir::module::Module as bindgen::codegen::CodeGenerator>::codegen::{closure#0} at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:515:21 12: codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:545:13 13: codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:483:17 14: {closure#0} at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:4287:9 15: <bindgen::ir::context::BindgenContext>::gen::<bindgen::codegen::codegen::{closure#0}, alloc::vec::Vec<proc_macro2::TokenStream>> at ./third-party/rust/vendor/bindgen-0.59.2/src/ir/context.rs:1190:19 16: bindgen::codegen::codegen at ./third-party/rust/vendor/bindgen-0.59.2/src/codegen/mod.rs:4251:5 17: generate at ./third-party/rust/vendor/bindgen-0.59.2/src/lib.rs:2374:32 18: <bindgen::Builder>::generate at ./third-party/rust/vendor/bindgen-0.59.2/src/lib.rs:1478:9 19: build_script_build::main at ./third-party/rust/vendor/loopdev-0.4.0/build.rs:7:20 20: <fn() as core::ops::function::FnOnce<()>>::call_once at /home/engshare/third-party2/rust/1.72.1+llvm.15/src/build-platform010/build/rustc-1.72.1-src/library/core/src/ops/function.rs:250:5 note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. ``` **After:** works on both 15 and staging (LLVM 18). --- - `$ fbgs loopdev::` ``` fbsource/fbcode/antlir/antlir2/antlir2_packager/btrfs_packager/src/main.rs:29:5:use loopdev::LoopControl; fbsource/fbcode/antlir/antlir2/antlir2_packager/btrfs_packager/src/main.rs:30:5:use loopdev::LoopDevice; fbsource/fbcode/antlir/antlir2/testing/image_test/src/main.rs:33:5:use loopdev::LoopControl; fbsource/fbcode/metalos/lib/facebook/diagnostics/src/command.rs:8:5:use loopdev::LoopControl; ``` - `$ buck2 build fbcode//antlir/antlir2/antlir2_packager/btrfs_packager: fbcode//antlir/antlir2/testing/image_test: fbcode//metalos/lib/facebook/diagnostics:` Reviewed By: zertosh Differential Revision: D51636912 fbshipit-source-id: cbea00fa85582b479cb1af1df4480d93342f190a

emilio force-pushed the anon-fix branch from be53402 to 99f3bdd Compare October 22, 2022 11:27

emilio merged commit 8073801 into rust-lang:master Oct 22, 2022

emilio deleted the anon-fix branch October 22, 2022 12:24

tgross35 mentioned this pull request Nov 11, 2022

thread 'main' panicked at '"__mbstate_t_(anonymous_struct_at_foo_cc_2_3)" is not a valid Ident' #2312

Closed

ZhongRuoyu mentioned this pull request Apr 5, 2023

signal-cli 0.11.8 Homebrew/homebrew-core#127600

Merged

cuviper mentioned this pull request Apr 12, 2023

Unnamed types have a name when switching to llvm >= 16.0.0 #2488

Closed

kawasin73 added a commit to kawasin73/userfaultfd-rs that referenced this pull request Apr 21, 2023

Update bindgen to the latest (0.65.1)

a58b92f

userfaultfd-sys fails to build <linux/userfaultfd.h> header file with newer clang. Newer bindgen have fix for it rust-lang/rust-bindgen#2319

kawasin73 mentioned this pull request Apr 21, 2023

Update bindgen to the latest (0.65.1) bytecodealliance/userfaultfd-rs#44

Merged

spearman mentioned this pull request Apr 22, 2023

Build script error after updating to Fedora 38 ruabmbua/enet-sys#19

Closed

xiangzhai mentioned this pull request Apr 28, 2023

"enum_(unnamed_at_/usr/include/linux/loop_h_16_1)" is not a valid Ident AOSC-Archive/aoscdk-rs#7

Closed

dwrobel mentioned this pull request May 6, 2023

paho-mqtt v0.12.1 not compatible with >= clang-16 (due to paho-mqtt-sys v0.8.0 dependency) eclipse-paho/paho.mqtt.rust#204

Closed

Rjected mentioned this pull request May 17, 2023

fix: update bindgen in libmdbx-rs paradigmxyz/reth#2703

Merged

micahrj mentioned this pull request Jun 4, 2023

unnamed enum issue on macos coupler-rs/vst3-rs#1

Closed

ojeda mentioned this pull request Jun 9, 2023

bindgen breaks build with ftrace_branch_data_union_... (LLVM >= 16) Rust-for-Linux/linux#1013

Closed

SWW13 mentioned this pull request Sep 5, 2023

SIGSEGV / Segfault in 0.61.0 #2395

Open

trumank mentioned this pull request Sep 19, 2023

Update bindgen to fix building with clang 16 furiosa-ai/dot-graph#13

Merged

sbernauer mentioned this pull request Nov 19, 2023

Update bindgen to 0.69 rayylee/libvnc-rs#2

Open

emilio mentioned this pull request Dec 22, 2023

thread 'main' panicked at .... is not a valid Ident #2700

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clang: Detect anonymous items explicitly, rather than relying on empty names. #2319

clang: Detect anonymous items explicitly, rather than relying on empty names. #2319

emilio commented Oct 22, 2022

clang: Detect anonymous items explicitly, rather than relying on empty names. #2319

clang: Detect anonymous items explicitly, rather than relying on empty names. #2319

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emilio commented Oct 22, 2022