Bug: 153207424

Clone this repo:
  1. 2e3ad0d Upgrade rust/crates/bindgen to 0.56.0 am: 5b14a8dc70 by Haibo Huang · 7 weeks ago master
  2. 5b14a8d Upgrade rust/crates/bindgen to 0.56.0 by Haibo Huang · 8 weeks ago
  3. 29e14a9 Mark ab/6881855 as merged by Xin Li · 8 weeks ago
  4. a4aecd2 Remove unused bindgen.sh am: 141207888d by Stephen Hines · 10 weeks ago
  5. 1412078 Remove unused bindgen.sh by Stephen Hines · 10 weeks ago

crates.io docs.rs

bindgen

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

For example, given the C header doggo.h:

typedef struct Doggo {
    int many;
    char wow;
} Doggo;

void eleven_out_of_ten_majestic_af(Doggo* pupper);

bindgen produces Rust FFI code allowing you to call into the doggo library's functions and use its types:

/* automatically generated by rust-bindgen 0.99.9 */

#[repr(C)]
pub struct Doggo {
    pub many: ::std::os::raw::c_int,
    pub wow: ::std::os::raw::c_char,
}

extern "C" {
    pub fn eleven_out_of_ten_majestic_af(pupper: *mut Doggo);
}

Users Guide

📚 Read the bindgen users guide here! 📚

MSRV

The minimum supported Rust version is 1.40.

No MSRV bump policy has been established yet, so MSRV may increase in any release.

API Reference

API reference documentation is on docs.rs

Environment Variables

In addition to the library API and executable command-line API, bindgen can be controlled through environment variables.

End-users should set these environment variables to modify bindgen's behavior without modifying the source code of direct consumers of bindgen.

  • BINDGEN_EXTRA_CLANG_ARGS: extra arguments to pass to clang
    • Arguments are whitespace-separated
    • Use shell-style quoting to pass through whitespace
    • Examples:
      • Specify alternate sysroot: --sysroot=/path/to/sysroot
      • Add include search path with spaces: -I"/path/with spaces"

Additionally, bindgen uses libclang to parse C and C++ header files. To modify how bindgen searches for libclang, see the clang-sys documentation. For more details on how bindgen uses libclang, see the bindgen users guide.

Releases

We don't follow a specific release calendar, but if you need a release please file an issue requesting that (ping @emilio for increased effectiveness).

Contributing

See CONTRIBUTING.md for hacking on bindgen!