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Change SIGPIPE ui from #[unix_sigpipe = "..."] to -Zon-broken-pipe=...

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In the stabilization attempt of `#[unix_sigpipe = "sig_dfl"]`, a concern
was raised related to using a language attribute for the feature: Long
term, we want `fn lang_start()` to be definable by any crate, not just
libstd. Having a special language attribute in that case becomes
awkward.

So as a first step towards towards the next stabilization attempt, this
PR changes the `#[unix_sigpipe = "..."]` attribute to a compiler flag
`-Zon-broken-pipe=...` to remove that concern, since now the language
is not "contaminated" by this feature.

Another point was also raised, namely that the ui should not leak
**how** it does things, but rather what the **end effect** is. The new
flag uses the proposed naming. This is of course something that can be
iterated on further before stabilization.
This commit is contained in:
Martin Nordholts 2024-04-28 18:02:21 +02:00
parent e27af2917b
commit cde0cde151
64 changed files with 203 additions and 372 deletions
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3
compiler/rustc_interface/src/tests.rs
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@ -20,7 +20,7 @@ use rustc_span::source_map::{RealFileLoader, SourceMapInputs};
use rustc_span::symbol::sym;
use rustc_span::{FileName, SourceFileHashAlgorithm};
use rustc_target::spec::{
CodeModel, LinkerFlavorCli, MergeFunctions, PanicStrategy, RelocModel, WasmCAbi,
CodeModel, LinkerFlavorCli, MergeFunctions, OnBrokenPipe, PanicStrategy, RelocModel, WasmCAbi,
};
use rustc_target::spec::{RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TlsModel};
use std::collections::{BTreeMap, BTreeSet};
@ -809,6 +809,7 @@ fn test_unstable_options_tracking_hash() {
tracked!(no_profiler_runtime, true);
tracked!(no_trait_vptr, true);
tracked!(no_unique_section_names, true);
tracked!(on_broken_pipe, OnBrokenPipe::Kill);
tracked!(oom, OomStrategy::Panic);
tracked!(osx_rpath_install_name, true);
tracked!(packed_bundled_libs, true);