rust-lang/rust-bindgen

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Automatically generates Rust FFI bindings to C (and some C++) libraries.

Stars: 5.3k
Forks: 829
Open beginner issues: 4
Indexed issues: 545
Avg merge: 1d 1h
Merged PRs (30d): 15

Dominant language: Rust
License: BSD-3-Clause
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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545 open issues indexed

[Feature request] non_exhaustive structs Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/rust-bindgen#3495 · Opened Sep 16, 2026
[Feature request] Provide an option to make bindgen generated default implementions inline Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

rust-lang/rust-bindgen#3494 · 1 comment · Opened Sep 16, 2026
0.73 and doc tests Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-bindgen#3492 · 1 comment · Opened Sep 15, 2026
`long double` alignment tests fail on riscv32 Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3491 · 2 comments · Opened Sep 15, 2026
__attribute__((noreturn)) on a returned function pointer makes take itself -> ! Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

rust-lang/rust-bindgen#3489 · Opened Sep 13, 2026
ObjC C-style extra parameters panic (assert_eq on selector arity) Open

Difficulty 3/5 1-2 days Newbie friendliness 70/100

rust-lang/rust-bindgen#3488 · Opened Sep 13, 2026
--generate-block panics on typedef F (^Blk) when F is a function typedef Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

rust-lang/rust-bindgen#3487 · Opened Sep 13, 2026
C++ method declared via a function typedef panics (How in the world?); virtual form drops this Open

Difficulty 4/5 3-5 days Newbie friendliness 64/100

rust-lang/rust-bindgen#3486 · Opened Sep 13, 2026
--enable-cxx-namespaces panics on namespace [[deprecated]] { ("[" is not a valid Ident) Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

rust-lang/rust-bindgen#3485 · Opened Sep 13, 2026
Method returning Class panics when the selector contains a colon ("take:" is not a valid Ident) Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-bindgen#3484 · Opened Sep 13, 2026
ObjC selector with $ panics ("take$foo" is not a valid Ident) Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

rust-lang/rust-bindgen#3483 · Opened Sep 13, 2026
--represent-cxx-operators panics: "S_operator()" is not a valid Ident Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3482 · Opened Sep 13, 2026
--wrap-static-fns prints float complex instead of float _Complex Open

Difficulty 2/5 1-3 hours Newbie friendliness 80/100

rust-lang/rust-bindgen#3481 · Opened Sep 13, 2026
--wrap-static-fns emits incomplete struct _bindgen_ty_N for anonymous record parameters Open

Difficulty 3/5 1-2 days Newbie friendliness 67/100

rust-lang/rust-bindgen#3480 · Opened Sep 13, 2026
Generic namespaced pointers are dropped Open

Difficulty 4/5 3-5 days Newbie friendliness 62/100

rust-lang/rust-bindgen#3479 · 1 comment · Opened Sep 11, 2026
rust-bindgen 0.73.2 segfaults with nested types defined with `using` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3478 · 2 comments · Opened Sep 10, 2026
SVE `__SVInt32_t` parameters become a zero-sized opaque; rustc drops the argument Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-bindgen#3477 · Opened Sep 9, 2026
objc_runtime_name is ignored: class!(SourceName) looks up a class that does not exist Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

rust-lang/rust-bindgen#3476 · Opened Sep 9, 2026
`aarch64_vector_pcs` function pointers become a zero-sized opaque; rustc drops the argument Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3475 · Opened Sep 9, 2026
C++20 `char8_t[N]` panics (`Not able to resolve array element?: Recurse`); scalar `char8_t` is `u8` Open

Difficulty 3/5 1-2 days Newbie friendliness 75/100

rust-lang/rust-bindgen#3474 · Opened Sep 9, 2026
objc_direct methods are emitted as msg_send! instead of a direct C call Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3473 · Opened Sep 9, 2026
`extern __mfp8` stack-overflows while parsing the variable (function form becomes `u8`) Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/rust-bindgen#3470 · Opened Sep 9, 2026
`_Accum` globals and constants panic (`CXType_Accum` fails the var.rs Auto/Unexposed assert) Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

rust-lang/rust-bindgen#3469 · 1 comment · Opened Sep 9, 2026
GNU integer `_Complex` panics in `build_builtin_ty` (`Non floating-type complex`) Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-bindgen#3468 · Opened Sep 9, 2026
`enum class : unsigned __int128` enumerator constants are truncated to `u64` Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

rust-lang/rust-bindgen#3465 · Opened Sep 8, 2026
C++20 `enum class : char8_t` enumerators are signed `i8` (`-1` instead of `255`) Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

rust-lang/rust-bindgen#3464 · Opened Sep 8, 2026
ObjC ARC `__weak` struct fields are passed by value (`Copy`) instead of the hidden-pointer ABI Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

rust-lang/rust-bindgen#3463 · Opened Sep 8, 2026
File-scope `.symver` is ignored, so generated bindings call the default symbol version Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3460 · Opened Sep 7, 2026
syn dependency version bound is incompatible with prettyplease Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

rust-lang/rust-bindgen#3448 · 3 comments · 1 reaction · Opened Sep 6, 2026
Feature request: option to mark function as safe Open

C-feature-request help wanted

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3443 · 1 comment · Opened Sep 1, 2026
Opaque-struct fallback silently corrupts a fully-specified struct's layout on native Windows (mismatched/MSVC libclang) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3442 · 1 comment · Opened Aug 29, 2026
C++ empty class by-value arguments are passed even though clang omits them Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-bindgen#3439 · 2 comments · Opened Aug 27, 2026
`[[no_unique_address]]` on an empty member is laid out as a 1-byte field, disagreeing with clang Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-bindgen#3438 · Opened Aug 27, 2026
`nullptr_t` bindings name a type that is never defined Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3437 · Opened Aug 27, 2026
`Copy` is not being derived when referring to a blocklisted type Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

rust-lang/rust-bindgen#3436 · 1 comment · Opened Aug 25, 2026
`matrix_type` values are passed with the wrong ABI in generated bindings Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3435 · Opened Aug 24, 2026
regparm(2) functions on i386 are emitted as ordinary extern C Open

A-rustc

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3417 · 2 comments · Opened Jul 29, 2026
Generated bitfield accessors shift by 64 when a field spans a 65-bit window Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3416 · Opened Jul 29, 2026
transparent_union parameters lose the first member signext ABI requirement Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

rust-lang/rust-bindgen#3415 · Opened Jul 29, 2026
Support `#undef` Open

A-macros

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3413 · Opened Jul 28, 2026
Aligned padding wrapper shifts a following flexible-array member Open

rust-for-linux

Difficulty 4/5 3-5 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3406 · 5 comments · Opened Jul 28, 2026
Visibility attributes on extern global variables are dropped from generated bindings Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

rust-lang/rust-bindgen#3405 · Opened Jul 28, 2026
Nonzero pointer address spaces are silently erased in generated bindings and static wrappers Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/rust-bindgen#3404 · Opened Jul 28, 2026
--wrap-static-fns generates invalid C for pointer-to-array parameters and returns Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

rust-lang/rust-bindgen#3403 · Opened Jul 28, 2026
`__attribute__((weak))` declarations are emitted as ordinary externs, producing strong undefined references on ELF Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/rust-bindgen#3402 · Opened Jul 27, 2026
`generate_cstr(true)` results in weird spacing for long strings Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

rust-lang/rust-bindgen#3399 · Opened Jul 26, 2026
`_BitInt` types lose their signedness and get widened to the next storage size Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/rust-bindgen#3398 · 1 comment · Opened Jul 26, 2026
bindgen panicked with message "Not an item: ItemId(...)" when parsing recursive union templates (breaks recent LLVM libc++ std::aligned_union) Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

rust-lang/rust-bindgen#3397 · 1 comment · Opened Jul 25, 2026
A macro transformation hack based on AST translation. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/rust-bindgen#3385 · Opened Jun 14, 2026
[BUG] Invalid binding generation for union with long double field Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

rust-lang/rust-bindgen#3381 · 4 comments · Opened Jun 5, 2026

rust-lang/rust-bindgen

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