ICE when trying to cross compile with xargo #47040
Labels
A-cross
Area: Cross compilation
A-MIR
Area: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html
C-bug
Category: This is a bug.
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Comments
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Same here. First time trying to follow @japaric's cortex-m-quickstart instructions, using blue pill board support crate. Only difference I can spot in the error or trace is the |
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Same here, trying to build for arm target using xargo. |
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I think this is breakage caused by the new Minimal repro: // foo/src/lib.rs
#![feature(lang_items)]
#![no_std]
#[lang = "eh_personality"]
fn eh_personality() {}
#[lang = "panic_fmt"]
fn panic_fmt() {}
#[lang = "start"]
extern "C" fn start(main: fn(), _argc: isize, _argv: *const *const u8) -> isize {
main();
0
}// bar/src/main.rs
#![no_std]
extern crate foo;
fn main() {}$ cd bar
$ tail Cargo.toml
[dependencies]
foo = { path = "../foo" }
$ cargo build
Compiling bar v0.1.0 (file:///home/japaric/tmp/bar)
error: internal compiler error: /checkout/src/librustc_metadata/cstore_impl.rs:131: get_optimized_mir: missing MIR for `DefId(2/0:5 ~ foo[128e]::start[0])`
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.24.0-nightly (77e189cd7 2017-12-28) running on x86_64-unknown-linux-gnu
thread 'rustc' panicked at 'Box<Any>', /checkout/src/librustc_errors/lib.rs:504:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
error: Could not compile `bar`.
To learn more, run the command again with --verbose.The error here is that the signature of the |
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Off-topic for the actual rustc issue but related to the sympton reported by the OP: The people that have been experiencing the ICE with the cortex-m-quickstart Cargo template and/or with the cortex-m-rt dependency should switch to version v0.3.8 of cortex-m-rt. The ICE should be gone when using that version. Calling |
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Hmm with the latest nightly and updated cortex-m-rt crate I get a segmentation fault from rustc! (In the LLVM parts, so I guess it's not Rusts fault 😉) |
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Segfaults inside of LLVM are actually often rustc's fault. It'll happen if you feed it invalid data and have it built with assertions disabled. |
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With rustc 1.24.0-nightly (b65f0be 2018-01-01) I no longer get the segfault either |
Closed
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I still get a segfault with rustc 1.25.0-nightly (3f92e8d 2018-01-14) |
pietroalbini
added
I-ICE
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I encountered this problem in #48119. I worked around the LLVM assert by making my lang_start function signature match the one in the standard library (returns an isize not !), which is different than the example in RFC 1937. |
Closed
camelid
added
the
A-MIR
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ping from triage: Status? |
Well this is a pretty old bug and I'm not sure if it is worth to try and reproduce, since |
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Closing this as it is an old issue |
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I got an internal compiler error when trying to cross compile a project with the latest nightly using xargo.
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