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Rollup merge of #76832 - khyperia:backend_target_override, r=eddyb

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Let backends define custom targets

Add a target_override hook that takes priority over builtin targets.
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Ralf Jung 2020-09-20 15:51:48 +02:00 • committed by GitHub
commit c847eaa91d
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5 changed files with 24 additions and 11 deletions
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7
compiler/rustc_codegen_ssa/src/traits/backend.rs
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@ -15,6 +15,7 @@ use rustc_session::{
};
use rustc_span::symbol::Symbol;
use rustc_target::abi::LayoutOf;
use rustc_target::spec::Target;
pub use rustc_data_structures::sync::MetadataRef;
@ -54,6 +55,12 @@ pub trait CodegenBackend {
fn print_passes(&self) {}
fn print_version(&self) {}
/// If this plugin provides additional builtin targets, provide the one enabled by the options here.
/// Be careful: this is called *before* init() is called.
fn target_override(&self, _opts: &config::Options) -> Option<Target> {
None
}
fn metadata_loader(&self) -> Box<MetadataLoaderDyn>;
fn provide(&self, _providers: &mut Providers);
fn provide_extern(&self, _providers: &mut Providers);