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Auto merge of #88098 - Amanieu:oom_panic, r=nagisa

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Implement -Z oom=panic

This PR removes the `#[rustc_allocator_nounwind]` attribute on `alloc_error_handler` which allows it to unwind with a panic instead of always aborting. This is then used to implement `-Z oom=panic` as per RFC 2116 (tracking issue #43596).

Perf and binary size tests show negligible impact.
This commit is contained in:
bors 2022-03-18 03:01:46 +00:00
commit d6f3a4ecb4
9 changed files with 114 additions and 10 deletions
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5
compiler/rustc_interface/src/tests.rs
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@ -9,8 +9,8 @@ use rustc_session::config::{
rustc_optgroups, ErrorOutputType, ExternLocation, LocationDetail, Options, Passes,
};
use rustc_session::config::{
BranchProtection, Externs, OutputType, OutputTypes, PAuthKey, PacRet, SymbolManglingVersion,
WasiExecModel,
BranchProtection, Externs, OomStrategy, OutputType, OutputTypes, PAuthKey, PacRet,
SymbolManglingVersion, WasiExecModel,
};
use rustc_session::config::{CFGuard, ExternEntry, LinkerPluginLto, LtoCli, SwitchWithOptPath};
use rustc_session::lint::Level;
@ -758,6 +758,7 @@ fn test_debugging_options_tracking_hash() {
tracked!(no_link, true);
tracked!(no_unique_section_names, true);
tracked!(no_profiler_runtime, true);
tracked!(oom, OomStrategy::Panic);
tracked!(osx_rpath_install_name, true);
tracked!(panic_abort_tests, true);
tracked!(panic_in_drop, PanicStrategy::Abort);