Matthias Krüger 1b4b0e9a4d Rollup merge of #125834 - workingjubilee:weaken-thir-unsafeck-for-addr-of-static-mut, r=compiler-errors ... treat `&raw (const|mut) UNSAFE_STATIC` implied deref as safe Fixes rust-lang/rust#125833 As reported in that and related issues, `static mut STATIC_MUT: T` is very often used in embedded code, and is in many ways equivalent to `static STATIC_CELL: SyncUnsafeCell<T>`. The Rust expression of `&raw mut STATIC_MUT` and `SyncUnsafeCell::get(&STATIC_CELL)` are approximately equal, and both evaluate to `*mut T`. The library function is safe because it has *declared itself* to be safe. However, the raw ref operator is unsafe because all uses of `static mut` are considered unsafe, even though the static's value is not used by this expression (unlike, for example, `&STATIC_MUT`). We can fix this unnatural difference by simply adding the proper exclusion for the safety check inside the THIR unsafeck, so that we do not declare it unsafe if it is not. While the primary concern here is `static mut`, this change is made for all instances of an "unsafe static", which includes a static declared inside `extern "abi" {}`. Hypothetically, we could go as far as generalizing this to all instances of `&raw (const|mut) *ptr`, but today we do not, as we have not actually considered the range of possible expressions that use a similar encoding. We do not even extend this to thread-local equivalents, because they have less clear semantics.		2024-07-23 13:06:54 +02:00
..
rustc	The rustc crate feature is called jemalloc	2024-07-15 13:01:20 -04:00
rustc_abi	Rollup merge of #127769 - compiler-errors:ed-2024-dep, r=oli-obk	2024-07-17 16:22:31 +02:00
rustc_arena	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_ast	Rollup merge of #127806 - nnethercote:parser-improvements, r=spastorino	2024-07-17 19:53:27 -05:00
rustc_ast_ir	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_ast_lowering	Add ConstArgKind::Path and make ConstArg its own HIR node	2024-07-16 19:27:28 -07:00
rustc_ast_passes	Just totally fully deny late-bound consts	2024-07-20 19:45:24 -04:00
rustc_ast_pretty	Rollup merge of #127092 - compiler-errors:rtn-dots-redux, r=estebank	2024-07-03 23:30:07 +02:00
rustc_attr	Use a dedicated type instead of a reference for the diagnostic context	2024-06-18 15:42:11 +00:00
rustc_baked_icu_data	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_borrowck	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_builtin_macros	Auto merge of #127722 - BoxyUwU:new_adt_const_params_limitations, r=compiler-errors	2024-07-21 05:36:21 +00:00
rustc_codegen_cranelift	Rollup merge of #127177 - bjorn3:arm64_macos_cg_clif, r=Mark-Simulacrum	2024-07-22 16:44:02 +08:00
rustc_codegen_gcc	Format cg_gcc with same formatting parameters	2024-07-17 20:22:07 +02:00
rustc_codegen_llvm	Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco	2024-07-22 11:40:19 -05:00
rustc_codegen_ssa	Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco	2024-07-22 11:40:19 -05:00
rustc_const_eval	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_data_structures	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_driver	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_driver_impl	Move codegen_and_build_linker from Queries to Linker	2024-07-01 11:00:49 +00:00
rustc_error_codes	Auto merge of #127722 - BoxyUwU:new_adt_const_params_limitations, r=compiler-errors	2024-07-21 05:36:21 +00:00
rustc_error_messages	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_errors	Rollup merge of #120248 - WaffleLapkin:bonk-ptr-object-casts, r=compiler-errors,oli-obk,lnicola	2024-07-08 16:28:15 +02:00
rustc_expand	Allow concat in repetitions	2024-07-19 21:00:46 -03:00
rustc_feature	Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco	2024-07-22 11:40:19 -05:00
rustc_fluent_macro	Avoid ref when using format! in compiler	2024-07-19 14:52:07 -04:00
rustc_fs_util	Remove useless tidy-alphabetical markers.	2024-06-20 09:23:20 +10:00
rustc_graphviz	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_hir	Auto merge of #127722 - BoxyUwU:new_adt_const_params_limitations, r=compiler-errors	2024-07-21 05:36:21 +00:00
rustc_hir_analysis	Auto merge of #128041 - compiler-errors:uplift-errors-into-trait-sel, r=lcnr	2024-07-22 15:06:18 +00:00
rustc_hir_pretty	Remove some unintended changes to imports	2024-07-17 20:31:37 -07:00
rustc_hir_typeck	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_incremental	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_index	Fix feature gating on rustc_index to not use implicit features	2024-07-15 12:44:24 -04:00
rustc_index_macros	Remove usage of specialization from newtype_index!	2024-06-30 16:42:53 +00:00
rustc_infer	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_interface	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_lexer	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_lint	Rollup merge of #125990 - tbu-:pr_unsafe_env_lint_name, r=ehuss	2024-07-22 11:40:19 -05:00
rustc_lint_defs	Rollup merge of #125990 - tbu-:pr_unsafe_env_lint_name, r=ehuss	2024-07-22 11:40:19 -05:00
rustc_llvm	Rollup merge of #124033 - bjorn3:ar_archive_writer_0_3_0, r=davidtwco	2024-07-16 16:15:13 -05:00
rustc_log	Bump tracing-tree and allow rendering lines again	2024-06-12 10:11:41 +00:00
rustc_macros	lift_to_tcx -> lift_to_interner	2024-07-17 10:46:10 -04:00
rustc_metadata	Auto merge of #120812 - compiler-errors:impl-sorting, r=lcnr	2024-07-21 22:43:47 +00:00
rustc_middle	Auto merge of #127442 - saethlin:alloc-decoding-lock, r=oli-obk	2024-07-22 05:56:05 +00:00
rustc_mir_build	Rollup merge of #125834 - workingjubilee:weaken-thir-unsafeck-for-addr-of-static-mut, r=compiler-errors	2024-07-23 13:06:54 +02:00
rustc_mir_dataflow	Avoid ref when using format! in compiler	2024-07-19 14:52:07 -04:00
rustc_mir_transform	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_monomorphize	Move compiler_builtin check to the use case	2024-07-15 23:43:52 +00:00
rustc_next_trait_solver	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_parse	Auto merge of #127957 - matthiaskrgr:rollup-1u5ivck, r=matthiaskrgr	2024-07-19 13:39:12 +00:00
rustc_parse_format	Use tidy to sort crate attributes for all compiler crates.	2024-06-12 15:49:10 +10:00
rustc_passes	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_pattern_analysis	Auto merge of #128015 - Nadrieril:two-step-or-expansion, r=compiler-errors	2024-07-23 06:35:42 +00:00
rustc_privacy	Do not ICE in privacy when type inference fails.	2024-06-17 10:09:27 +00:00
rustc_query_impl	Allow tracing through item_bounds query invocations on opaques	2024-06-19 08:47:55 +00:00
rustc_query_system	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_resolve	Just totally fully deny late-bound consts	2024-07-20 19:45:24 -04:00
rustc_sanitizers	Rollup merge of #127980 - nyurik:compiler-refs, r=oli-obk	2024-07-20 07:13:45 +02:00
rustc_serialize	chore: remove duplicate words	2024-07-02 11:25:31 +08:00
rustc_session	Auto merge of #127670 - compiler-errors:no-type-length-limit, r=jackh726	2024-07-14 12:44:07 +00:00
rustc_smir	Avoid comments that describe multiple use items.	2024-07-17 08:02:46 +10:00
rustc_span	Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco	2024-07-22 11:40:19 -05:00
rustc_symbol_mangling	Fix FnMut/Fn shim for coroutine-closures that capture references	2024-06-29 17:38:02 -04:00
rustc_target	Rollup merge of #127506 - liushuyu:s390x-target-features, r=davidtwco	2024-07-22 11:40:19 -05:00
rustc_trait_selection	Fix tools	2024-07-21 22:34:37 -04:00
rustc_traits	Move all error reporting into rustc_trait_selection	2024-07-21 22:34:35 -04:00
rustc_transmute	Use dep: for crate dependencies	2024-07-15 12:40:10 -04:00
rustc_ty_utils	Auto merge of #123351 - beetrees:x86-ret-snan-rust, r=nikic,workingjubilee	2024-07-12 20:36:43 +00:00
rustc_type_ir	Avoid ref when using format! in compiler	2024-07-19 14:52:07 -04:00
rustc_type_ir_macros	lift_to_tcx -> lift_to_interner	2024-07-17 10:46:10 -04:00
stable_mir	Avoid ref when using format! in compiler	2024-07-19 14:52:07 -04:00