https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=1.52.0 2021-03-09T19:40:33+00:00 2021-03-09T19:40:33+00:00 katelyn a. martin me+rustlang@katelyn.world 2020-12-12T01:54:47+00:00 urn:sha1:baf227ea0c1e07fc54395a51e4b3881d701180cb ### Integration Tests This commit introduces some new fixtures to the `run-make-fulldeps` test suite. * c-unwind-abi-catch-panic: Exercise unwinding a panic. This catches a panic across an FFI boundary and downcasts it into an integer. * c-unwind-abi-catch-lib-panic: This is similar to the previous `*catch-panic` test, however in this case the Rust code that panics resides in a separate crate. ### Add `rust_eh_personality` to `#[no_std]` alloc tests This commit addresses some test failures that now occur in the following two tests: * no_std-alloc-error-handler-custom.rs * no_std-alloc-error-handler-default.rs Each test now defines a `rust_eh_personality` extern function, in the same manner as shown in the "Writing an executable without stdlib" section of the `lang_items` documentation here: https://doc.rust-lang.org/unstable-book/language-features/lang-items.html#writing-an-executable-without-stdlib Without this change, these tests would fail to compile due to a linking error explaining that there was an "undefined reference to `rust_eh_personality'." ### Updated hash * update 32-bit hash in `impl1` test ### Panics This commit uses `panic!` macro invocations that return a string, rather than using an integer as a panic payload. Doing so avoids the following warnings that were observed during rollup for the `*-msvc-1` targets: ``` warning: panic message is not a string literal --> panic.rs:10:16 | 10 | panic!(x); // That is too big! | ^ | = note: `#[warn(non_fmt_panic)]` on by default = note: this is no longer accepted in Rust 2021 help: add a "{}" format string to Display the message | 10 | panic!("{}", x); // That is too big! | ^^^^^ help: or use std::panic::panic_any instead | 10 | std::panic::panic_any(x); // That is too big! | ^^^^^^^^^^^^^^^^^^^^^ warning: 1 warning emitted ``` See: https://github.com/rust-lang-ci/rust/runs/1992118428 As these errors imply, panicking without a format string will be disallowed in Rust 2021, per #78500. 2020-11-22T22:11:41+00:00 Lzu Tao taolzu@gmail.com 2020-10-27T13:10:31+00:00 urn:sha1:6bfe27a3e0f1c4d77999ccc2350ab861327615a2 2020-10-02T07:00:29+00:00 Harald Hoyer harald@redhat.com 2020-09-07T08:45:20+00:00 urn:sha1:cadd12b5f020b9b2c7bb0c5e7078b81fbdcfb6d8 Related: https://github.com/rust-lang/rust/issues/66741 Guarded with `#![feature(default_alloc_error_handler)]` a default `alloc_error_handler` is called, if a custom allocator is used and no other custom `#[alloc_error_handler]` is defined. The panic message does not contain the size anymore, because it would pull in the fmt machinery, which would blow up the code size significantly.