43634675f6
Rewrite implementation of `#[alloc_error_handler]` The new implementation doesn't use weak lang items and instead changes `#[alloc_error_handler]` to an attribute macro just like `#[global_allocator]`. The attribute will generate the `__rg_oom` function which is called by the compiler-generated `__rust_alloc_error_handler`. If no `__rg_oom` function is defined in any crate then the compiler shim will call `__rdl_oom` in the alloc crate which will simply panic. This also fixes link errors with `-C link-dead-code` with `default_alloc_error_handler`: `__rg_oom` was previously defined in the alloc crate and would attempt to reference the `oom` lang item, even if it didn't exist. This worked as long as `__rg_oom` was excluded from linking since it was not called. This is a prerequisite for the stabilization of `default_alloc_error_handler` (#102318). |
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| .. | ||
| ast_lowering.ftl | ||
| ast_passes.ftl | ||
| attr.ftl | ||
| borrowck.ftl | ||
| builtin_macros.ftl | ||
| codegen_gcc.ftl | ||
| codegen_ssa.ftl | ||
| compiletest.ftl | ||
| const_eval.ftl | ||
| driver.ftl | ||
| errors.ftl | ||
| expand.ftl | ||
| hir_analysis.ftl | ||
| infer.ftl | ||
| interface.ftl | ||
| lint.ftl | ||
| metadata.ftl | ||
| middle.ftl | ||
| mir_dataflow.ftl | ||
| monomorphize.ftl | ||
| parser.ftl | ||
| passes.ftl | ||
| plugin_impl.ftl | ||
| privacy.ftl | ||
| query_system.ftl | ||
| save_analysis.ftl | ||
| session.ftl | ||
| symbol_mangling.ftl | ||
| trait_selection.ftl | ||
| ty_utils.ftl | ||