diff options
Diffstat (limited to 'compiler/rustc_codegen_ssa/src/traits/statics.rs')
-rw-r--r-- | compiler/rustc_codegen_ssa/src/traits/statics.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_ssa/src/traits/statics.rs b/compiler/rustc_codegen_ssa/src/traits/statics.rs new file mode 100644 index 000000000..413d31bb9 --- /dev/null +++ b/compiler/rustc_codegen_ssa/src/traits/statics.rs @@ -0,0 +1,24 @@ +use super::BackendTypes; +use rustc_hir::def_id::DefId; +use rustc_target::abi::Align; + +pub trait StaticMethods: BackendTypes { + fn static_addr_of(&self, cv: Self::Value, align: Align, kind: Option<&str>) -> Self::Value; + fn codegen_static(&self, def_id: DefId, is_mutable: bool); + + /// Mark the given global value as "used", to prevent the compiler and linker from potentially + /// removing a static variable that may otherwise appear unused. + fn add_used_global(&self, global: Self::Value); + + /// Same as add_used_global(), but only prevent the compiler from potentially removing an + /// otherwise unused symbol. The linker is still permitted to drop it. + /// + /// This corresponds to the documented semantics of the `#[used]` attribute, although + /// on some targets (non-ELF), we may use `add_used_global` for `#[used]` statics + /// instead. + fn add_compiler_used_global(&self, global: Self::Value); +} + +pub trait StaticBuilderMethods: BackendTypes { + fn get_static(&mut self, def_id: DefId) -> Self::Value; +} |