rust-bindgen
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rust-lang
Unable to generate bindings for Arduino library IRremote.hpp on MacOS
Input C/C++ Header
Since the header file generated has 15000+ lines, I won't copy it here, you can find the repository Arduino-IRremote
Bindgen Invocation
fn configure_bindgen_for_arduino(config: &Config) -> Builder {
let mut builder = Builder::default();
for (k, v) in &config.definitions {
builder = builder.clang_arg(&format!("-D{}={}", k, v));
}
for flag in &config.flags {
builder = builder.clang_arg(flag);
}
builder = builder
.clang_args(&["-x", "c++"])
.use_core()
.header("wrapper.h")
.layout_tests(false)
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()));
for include_dir in config.include_dirs() {
builder = builder.clang_arg(&format!("-I{}", include_dir.to_string_lossy()));
}
for item in &config.bindgen_lists.allowlist_function {
builder = builder.allowlist_function(item);
}
for item in &config.bindgen_lists.allowlist_type {
builder = builder.allowlist_type(item);
}
for item in &config.bindgen_lists.blocklist_function {
builder = builder.blocklist_function(item);
}
for item in &config.bindgen_lists.blocklist_type {
builder = builder.blocklist_type(item);
}
builder
}
fn generate_bindings(config: &Config) {
let bindings: Bindings = configure_bindgen_for_arduino(&config)
.generate()
.expect("Unable to generate bindings");
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}
definitions and flags
definitions:
ARDUINO: "10807"
F_CPU: 16000000L
ARDUINO_AVR_UNO: "1"
ARDUINO_ARCH_AVR: "1"
flags:
- "-mmcu=atmega328p"
# binding filter
bindgen_lists:
allowlist_function:
# - Arduino.*
- Servo.*
- IRsend.*
allowlist_type:
- Servo.*
- IRsend.*
blocklist_function:
- Print.*
- String.*
- std::.*
blocklist_type:
- Print.*
- String.*
- std::.*
wrapper.h
#include <Arduino.h>
#include <IRremote.hpp>
Actual Results
--- stderr
clang: warning: argument unused during compilation: '-mmcu=atmega328p' [-Wunused-command-line-argument]
In file included from __bindgen.cpp:1:
In file included from ./wrapper.h:1:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Arduino.h:28:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include/avr/pgmspace.h:90:
/Users/zhangzhi/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include/avr/io.h:711:6: warning: "device type not defined" [-W#warnings]
# warning "device type not defined"
^
In file included from __bindgen.cpp:1:
In file included from ./wrapper.h:1:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Arduino.h:234:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/USBAPI.h:25:
/Users/zhangzhi/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include/avr/eeprom.h:41:3: warning: "Device does not have EEPROM available." [-W#warnings]
# warning "Device does not have EEPROM available."
^
In file included from __bindgen.cpp:1:
In file included from ./wrapper.h:1:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Arduino.h:234:
In file included from /Users/zhangzhi/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/USBAPI.h:27:
/Users/zhangzhi/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include/util/delay.h:112:3: warning: "Compiler optimizations disabled; functions from <util/delay.h> won't work as designed" [-W#warnings]
# warning "Compiler optimizations disabled; functions from <util/delay.h> won't work as designed"
^
In file included from __bindgen.cpp:1:
In file included from ./wrapper.h:3:
In file included from /Users/zhangzhi/Documents/Arduino/libraries/IRremote/src/IRremote.hpp:264:
/Users/zhangzhi/Documents/Arduino/libraries/IRremote/src/private/IRTimer.hpp:1987:2: error: Internal code configuration error, no timer functions implemented for this CPU / board
#error Internal code configuration error, no timer functions implemented for this CPU / board
^
3 warnings and 1 error generated.
thread 'main' panicked at build.rs:235:39:
called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: "clang exited with non-zero status" }
stack backtrace:
0: 0x108ec4b63 - std::backtrace_rs::backtrace::libunwind::trace::h03136b7b4ce63c8d
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
1: 0x108ec4b63 - std::backtrace_rs::backtrace::trace_unsynchronized::he50d19b877e32d81
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x108ec4b63 - std::sys_common::backtrace::_print_fmt::ha128008280351119
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:68:5
3: 0x108ec4b63 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h84ee1fd57c46bba1
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:44:22
4: 0x108eeaaeb - core::fmt::rt::Argument::fmt::hf4a4a456fa7ca3e0
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/fmt/rt.rs:142:9
5: 0x108eeaaeb - core::fmt::write::h123b335250020b84
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/fmt/mod.rs:1153:17
6: 0x108ec171e - std::io::Write::write_fmt::hda015eca4cf47a4e
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/io/mod.rs:1843:15
7: 0x108ec4951 - std::sys_common::backtrace::_print::h7323b605ff848043
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:47:5
8: 0x108ec4951 - std::sys_common::backtrace::print::ha8973aaaf4ba8d60
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:34:9
9: 0x108ec6649 - std::panicking::default_hook::{{closure}}::h75f2ccfa168dcb7c
10: 0x108ec63b0 - std::panicking::default_hook::h00c64a52932be1d3
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:292:9
11: 0x108ec708e - std::panicking::rust_panic_with_hook::hfde80e8a46eed7c0
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:779:13
12: 0x108ec69e4 - std::panicking::begin_panic_handler::{{closure}}::hff01ef6aad810b31
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:657:13
13: 0x108ec5039 - std::sys_common::backtrace::__rust_end_short_backtrace::h330cba627087babe
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:171:18
14: 0x108ec6716 - rust_begin_unwind
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:645:5
15: 0x108f0c835 - core::panicking::panic_fmt::h2a011b097ccd0049
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/panicking.rs:72:14
16: 0x108f0ce15 - core::result::unwrap_failed::hea2c2659c9676c1d
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/result.rs:1654:5
17: 0x10881a0c2 - core::result::Result<T,E>::unwrap::h52e532e81b022259
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/result.rs:1077:23
18: 0x10881a0c2 - build_script_build::configure_bindgen_for_arduino::h64bc02a44425595f
at /Users/zhangzhi/workspace/rust/arduino/tutorial/arduino_uno_example/build.rs:235:5
19: 0x10881a5ea - build_script_build::generate_bindings::hbc9f012bdfac1aab
at /Users/zhangzhi/workspace/rust/arduino/tutorial/arduino_uno_example/build.rs:241:30
20: 0x108817255 - build_script_build::main::h43213882a8b71a63
at /Users/zhangzhi/workspace/rust/arduino/tutorial/arduino_uno_example/build.rs:27:5
21: 0x10881532e - core::ops::function::FnOnce::call_once::h8f814b1c2ecb4147
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/ops/function.rs:250:5
22: 0x10880c9b1 - std::sys_common::backtrace::__rust_begin_short_backtrace::h75f3245420fd938c
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/sys_common/backtrace.rs:155:18
23: 0x10880a5c4 - std::rt::lang_start::{{closure}}::h1c65cce0f3365ab2
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/rt.rs:166:18
24: 0x108ebcc40 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h31936847bb2ea9da
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/core/src/ops/function.rs:284:13
25: 0x108ebcc40 - std::panicking::try::do_call::hd0b7a38aaf21d85e
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:552:40
26: 0x108ebcc40 - std::panicking::try::he975670dbe333245
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:516:19
27: 0x108ebcc40 - std::panic::catch_unwind::hfeafa5faebbec479
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panic.rs:146:14
28: 0x108ebcc40 - std::rt::lang_start_internal::{{closure}}::h143264f88c4ac43b
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/rt.rs:148:48
29: 0x108ebcc40 - std::panicking::try::do_call::h8214801e1afde609
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:552:40
30: 0x108ebcc40 - std::panicking::try::hc61b00624572adb5
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panicking.rs:516:19
31: 0x108ebcc40 - std::panic::catch_unwind::h02bc6883fb1430ae
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/panic.rs:146:14
32: 0x108ebcc40 - std::rt::lang_start_internal::h8309c4bfb14094e1
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/rt.rs:148:20
33: 0x10880a597 - std::rt::lang_start::h51b4cbc837c762d5
at /rustc/0ad927c0c07b65fc0dae37105e09c877c87c296a/library/std/src/rt.rs:165:17
34: 0x10881ab98 - _main
Expected Results
generate bindings
I suspect this is a misconfiguration of your development environment as this error comes from clang itself, not from bindgen.
From the stderr dump, it is clear that clang doesn't understand the -mmcu=atmega328p flag and the subsequent errors seem to be a consequence of this.
