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Include the "unwind" crate to link with libunwind instead of the "libc" crate.

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This commit is contained in:
Xing Xue 2024-11-11 10:31:29 -05:00
parent 71042b4b20
commit 467ce2695a
1 changed files with 5 additions and 9 deletions
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14
tests/ui/extern-flag/auxiliary/panic_handler.rs
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@ -1,14 +1,10 @@
#![feature(lang_items)] #![feature(lang_items, panic_unwind)]
#![no_std] #![no_std]
// Since `rustc` generally passes `-nodefaultlibs` to the linker, // Since the `unwind` crate is a dependency of the `std` crate, and we have
// Rust programs link necessary system libraries via `#[link()]` // `#![no_std]`, the unwinder is not included in the link command by default.
// attributes in the `libc` crate. `libc` is a dependency of `std`, // We need to include crate `unwind` manually.
// but as we are `#![no_std]`, we need to include it manually. extern crate unwind;
// Except on windows-msvc.
#![feature(rustc_private)]
#[cfg(not(all(windows, target_env = "msvc")))]
extern crate libc;
#[panic_handler] #[panic_handler]
pub fn begin_panic_handler(_info: &core::panic::PanicInfo<'_>) -> ! { pub fn begin_panic_handler(_info: &core::panic::PanicInfo<'_>) -> ! {