diff options
Diffstat (limited to 'library')
| -rw-r--r-- | library/core/src/panicking.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/library/core/src/panicking.rs b/library/core/src/panicking.rs index 7b6249207fe..ab6aa0df428 100644 --- a/library/core/src/panicking.rs +++ b/library/core/src/panicking.rs @@ -179,6 +179,8 @@ fn panic_misaligned_pointer_dereference(required: usize, found: usize) -> ! { /// Panic because we cannot unwind out of a function. /// +/// This is a separate function to avoid the codesize impact of each crate containing the string to +/// pass to `panic_nounwind`. /// This function is called directly by the codegen backend, and must not have /// any extra arguments (including those synthesized by track_caller). #[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] @@ -186,9 +188,26 @@ fn panic_misaligned_pointer_dereference(required: usize, found: usize) -> ! { #[lang = "panic_cannot_unwind"] // needed by codegen for panic in nounwind function #[rustc_nounwind] fn panic_cannot_unwind() -> ! { + // Keep the text in sync with `UnwindTerminateReason::as_str` in `rustc_middle`. panic_nounwind("panic in a function that cannot unwind") } +/// Panic because we are unwinding out of a destructor during cleanup. +/// +/// This is a separate function to avoid the codesize impact of each crate containing the string to +/// pass to `panic_nounwind`. +/// This function is called directly by the codegen backend, and must not have +/// any extra arguments (including those synthesized by track_caller). +#[cfg(not(bootstrap))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] +#[lang = "panic_in_cleanup"] // needed by codegen for panic in nounwind function +#[rustc_nounwind] +fn panic_in_cleanup() -> ! { + // Keep the text in sync with `UnwindTerminateReason::as_str` in `rustc_middle`. + panic_nounwind("panic in a destructor during cleanup") +} + /// This function is used instead of panic_fmt in const eval. #[lang = "const_panic_fmt"] #[rustc_const_unstable(feature = "core_panic", issue = "none")] |