mirror of
https://github.com/rust-lang/rust.git
synced 2026-06-01 05:57:03 +03:00
Mazdak Farrokhzad
72 lines
2.3 KiB
Rust
72 lines
2.3 KiB
Rust
use super::write::WriteBackendMethods;
|
|
use super::CodegenObject;
|
|
use crate::ModuleCodegen;
|
|
|
|
use rustc::middle::cstore::EncodedMetadata;
|
|
use rustc::ty::layout::{HasTyCtxt, LayoutOf, TyLayout};
|
|
use rustc::ty::Ty;
|
|
use rustc::ty::TyCtxt;
|
|
use rustc_ast::expand::allocator::AllocatorKind;
|
|
use rustc_codegen_utils::codegen_backend::CodegenBackend;
|
|
use rustc_session::{config, Session};
|
|
use rustc_span::symbol::Symbol;
|
|
|
|
use std::sync::Arc;
|
|
|
|
pub trait BackendTypes {
|
|
type Value: CodegenObject;
|
|
type Function: CodegenObject;
|
|
|
|
type BasicBlock: Copy;
|
|
type Type: CodegenObject;
|
|
type Funclet;
|
|
|
|
// FIXME(eddyb) find a common convention for all of the debuginfo-related
|
|
// names (choose between `Dbg`, `Debug`, `DebugInfo`, `DI` etc.).
|
|
type DIScope: Copy;
|
|
type DIVariable: Copy;
|
|
}
|
|
|
|
pub trait Backend<'tcx>:
|
|
Sized + BackendTypes + HasTyCtxt<'tcx> + LayoutOf<Ty = Ty<'tcx>, TyLayout = TyLayout<'tcx>>
|
|
{
|
|
}
|
|
|
|
impl<'tcx, T> Backend<'tcx> for T where
|
|
Self: BackendTypes + HasTyCtxt<'tcx> + LayoutOf<Ty = Ty<'tcx>, TyLayout = TyLayout<'tcx>>
|
|
{
|
|
}
|
|
|
|
pub trait ExtraBackendMethods: CodegenBackend + WriteBackendMethods + Sized + Send + Sync {
|
|
fn new_metadata(&self, sess: TyCtxt<'_>, mod_name: &str) -> Self::Module;
|
|
fn write_compressed_metadata<'tcx>(
|
|
&self,
|
|
tcx: TyCtxt<'tcx>,
|
|
metadata: &EncodedMetadata,
|
|
llvm_module: &mut Self::Module,
|
|
);
|
|
fn codegen_allocator<'tcx>(
|
|
&self,
|
|
tcx: TyCtxt<'tcx>,
|
|
mods: &mut Self::Module,
|
|
kind: AllocatorKind,
|
|
);
|
|
/// This generates the codegen unit and returns it along with
|
|
/// a `u64` giving an estimate of the unit's processing cost.
|
|
fn compile_codegen_unit(
|
|
&self,
|
|
tcx: TyCtxt<'_>,
|
|
cgu_name: Symbol,
|
|
) -> (ModuleCodegen<Self::Module>, u64);
|
|
// If find_features is true this won't access `sess.crate_types` by assuming
|
|
// that `is_pie_binary` is false. When we discover LLVM target features
|
|
// `sess.crate_types` is uninitialized so we cannot access it.
|
|
fn target_machine_factory(
|
|
&self,
|
|
sess: &Session,
|
|
opt_level: config::OptLevel,
|
|
find_features: bool,
|
|
) -> Arc<dyn Fn() -> Result<Self::TargetMachine, String> + Send + Sync>;
|
|
fn target_cpu<'b>(&self, sess: &'b Session) -> &'b str;
|
|
}
|