bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

remove support for the #[start] attribute

Browse source
This commit is contained in:
Ralf Jung 2024-12-14 09:13:12 +01:00
parent 341f60327f
commit 56c90dc31e
176 changed files with 454 additions and 1260 deletions
Download patch file Download diff file Expand all files Collapse all files

11
compiler/rustc_codegen_ssa/src/base.rs
View file

@ -490,8 +490,8 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
let ptr_ty = cx.type_ptr();
let (arg_argc, arg_argv) = get_argc_argv(&mut bx);
let (start_fn, start_ty, args, instance) = if let EntryFnType::Main { sigpipe } = entry_type
{
let EntryFnType::Main { sigpipe } = entry_type;
let (start_fn, start_ty, args, instance) = {
let start_def_id = cx.tcx().require_lang_item(LangItem::Start, None);
let start_instance = ty::Instance::expect_resolve(
cx.tcx(),
@ -512,10 +512,6 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
vec![rust_main, arg_argc, arg_argv, arg_sigpipe],
Some(start_instance),
)
} else {
debug!("using user-defined start fn");
let start_ty = cx.type_func(&[isize_ty, ptr_ty], isize_ty);
(rust_main, start_ty, vec![arg_argc, arg_argv], None)
};
let result = bx.call(start_ty, None, None, start_fn, &args, None, instance);
@ -530,7 +526,8 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
}
}
/// Obtain the `argc` and `argv` values to pass to the rust start function.
/// Obtain the `argc` and `argv` values to pass to the rust start function
/// (i.e., the "start" lang item).
fn get_argc_argv<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(bx: &mut Bx) -> (Bx::Value, Bx::Value) {
if bx.cx().sess().target.os.contains("uefi") {
// Params for UEFI