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Rollup merge of #104001 - Ayush1325:custom-entry, r=bjorn3

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Improve generating Custom entry function

This commit is aimed at making compiler-generated entry functions (Basically just C `main` right now) more generic so other targets can do similar things for custom entry. This was initially implemented as part of https://github.com/rust-lang/rust/pull/100316.

Currently, this moves the entry function name and Call convention to the target spec.

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
This commit is contained in:
Dylan DPC 2022-11-19 11:54:43 +05:30 • committed by GitHub
commit aeeac5dd0c
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11 changed files with 161 additions and 36 deletions
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3
compiler/rustc_codegen_ssa/src/back/symbol_export.rs
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@ -180,7 +180,8 @@ fn exported_symbols_provider_local<'tcx>(
.collect();
if tcx.entry_fn(()).is_some() {
let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new(tcx, "main"));
let exported_symbol =
ExportedSymbol::NoDefId(SymbolName::new(tcx, tcx.sess.target.entry_name.as_ref()));
symbols.push((
exported_symbol,