diff options
Diffstat (limited to 'compiler/rustc_hir/src/lang_items.rs')
| -rw-r--r-- | compiler/rustc_hir/src/lang_items.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index fae3b778d7b..02bc069fc5f 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -332,6 +332,10 @@ language_item_table! { FallbackSurfaceDrop, sym::fallback_surface_drop, fallback_surface_drop_fn, Target::Fn, GenericRequirement::None; AllocLayout, sym::alloc_layout, alloc_layout, Target::Struct, GenericRequirement::None; + /// For all binary crates without `#![no_main]`, Rust will generate a "main" function. + /// The exact name and signature are target-dependent. The "main" function will invoke + /// this lang item, passing it the `argc` and `argv` (or null, if those don't exist + /// on the current target) as well as the user-defined `fn main` from the binary crate. Start, sym::start, start_fn, Target::Fn, GenericRequirement::Exact(1); EhPersonality, sym::eh_personality, eh_personality, Target::Fn, GenericRequirement::None; |