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

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Description

Reported by Aakash Sen Sharma (@Shinyzenith) at https://rust-for-linux.zulipchat.com/#narrow/stream/291565-Help/topic/Build.20errors/near/364313442.

Requires LLVM >= 16 to reproduce. bindgen 0.62.0 fixes it: rust-lang/rust-bindgen#2488, rust-lang/rust-bindgen#2319 (thanks @cuviper for the pointer!).

❯ make rustdoc LLVM=1 CLIPPY=1 -j$(nproc) DESCEND objtool CALL scripts/checksyscalls.sh INSTALL libsubcmd_headers 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', /home/aakash/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/fallback.rs:693:9 note: run with RUST_BACKTRACE=1 environment variable to display a backtrace make[1]: *** [rust/Makefile:316: rust/uapi/uapi_generated.rs] Error 1 make[1]: *** Deleting file 'rust/uapi/uapi_generated.rs' make[1]: *** Waiting for unfinished jobs.... thread 'main' panicked at '"ftrace_branch_data_union(anonymous_at__/_/include/linux/compiler_types_h_146_2)" is not a valid Ident', /home/aakash/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/fallback.rs:693:9 note: run with RUST_BACKTRACE=1 environment variable to display a backtrace make[1]: *** [rust/Makefile:310: rust/bindings/bindings_generated.rs] Error 1 make[1]: *** Deleting file 'rust/bindings/bindings_generated.rs' make: *** [Makefile:1293: prepare] Error 2