rust/library
Guillaume Gomez 61db24d15d
Rollup merge of #126732 - StackOverflowExcept1on:master, r=m-ou-se
Stabilize `PanicInfo::message()` and `PanicMessage`

Resolves #66745

This stabilizes the [`PanicInfo::message()`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicInfo.html#method.message) and [`PanicMessage`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicMessage.html).

Demonstration of [custom panic handler](https://github.com/StackOverflowExcept1on/panicker):
```rust
#![no_std]
#![no_main]

extern crate libc;

#[no_mangle]
extern "C" fn main() -> libc::c_int {
    panic!("I just panic every time");
}

#[panic_handler]
fn my_panic(panic_info: &core::panic::PanicInfo) -> ! {
    use arrayvec::ArrayString;
    use core::fmt::Write;

    let message = panic_info.message();
    let location = panic_info.location().unwrap();

    let mut debug_msg = ArrayString::<1024>::new();
    let _ = write!(&mut debug_msg, "panicked with '{message}' at '{location}'");

    if debug_msg.try_push_str("\0").is_ok() {
        unsafe {
            libc::puts(debug_msg.as_ptr() as *const _);
        }
    }

    unsafe { libc::exit(libc::EXIT_FAILURE) }
}
```
```
$ cargo +stage1 run --release
panicked with 'I just panic every time' at 'src/main.rs:8:5'
```

- [x] FCP: https://github.com/rust-lang/rust/issues/66745#issuecomment-2198143725

r? libs-api
2024-07-01 20:29:55 +02:00
..
alloc Avoid MIR bloat in inlining 2024-07-01 05:17:13 -07:00
backtrace@72265bea21 Update backtrace to 0.3.73 2024-06-06 22:50:45 -07:00
core Rollup merge of #126732 - StackOverflowExcept1on:master, r=m-ou-se 2024-07-01 20:29:55 +02:00
panic_abort Stabilise c_unwind 2024-06-19 13:54:51 +01:00
panic_unwind Auto merge of #125853 - tesuji:promote-fail-fast, r=cjgillot 2024-06-21 16:00:14 +00:00
portable-simd Add blank lines after module-level //! comments. 2024-06-20 09:23:20 +10:00
proc_macro Add a hack to prevent proc_macro misopt in CI 2024-06-19 13:54:55 +01:00
profiler_builtins Update cc crate to v1.0.97 2024-05-08 15:06:35 +00:00
rtstartup library: Fix warnings in rtstartup 2024-01-06 01:32:03 +03:00
rustc-std-workspace-alloc Replace libstd, libcore, liballoc in line comments. 2022-12-30 14:00:42 +01:00
rustc-std-workspace-core
rustc-std-workspace-std
std Rollup merge of #126732 - StackOverflowExcept1on:master, r=m-ou-se 2024-07-01 20:29:55 +02:00
stdarch@df3618d9f3 feat: update stdarch submodule for intrinsics on ARM 2024-05-15 15:38:58 -04:00
sysroot Add flag to sysroot 2024-05-11 14:31:55 +02:00
test Add blank lines after module-level //! comments. 2024-06-20 09:23:20 +10:00
unwind Stabilise c_unwind 2024-06-19 13:54:51 +01:00