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Clarify what rt.rs is. #1876

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Jan 28, 2024
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Clarify what rt.rs is. #1876

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7 changes: 4 additions & 3 deletions src/panic-implementation.md
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Expand Up @@ -107,6 +107,7 @@ responsible for unwinding the stack, running any 'landing pads' associated
with each frame (currently, running destructors), and transferring control
to the `catch_unwind` frame.

Note that all panics either abort the process or get caught by some call to `catch_unwind`:
in `library/std/src/rt.rs`, the call to the user-provided
`main` function is wrapped in `catch_unwind`.
Note that all panics either abort the process or get caught by some call to
`catch_unwind`. In particular, std's [runtime
service](https://github.com/rust-lang/rust/blob/master/library/std/src/rt.rs)
wrap the call to the user-provided `main` function is wrapped in `catch_unwind`.
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