diff --git a/example/alloc_example.rs b/example/alloc_example.rs index 754e7931412da..faff1dca23f3f 100644 --- a/example/alloc_example.rs +++ b/example/alloc_example.rs @@ -1,4 +1,4 @@ -#![feature(start, core_intrinsics, alloc_error_handler, lang_items)] +#![feature(start, core_intrinsics, lang_items)] #![no_std] extern crate alloc; @@ -21,11 +21,6 @@ fn panic_handler(_: &core::panic::PanicInfo) -> ! { core::intrinsics::abort(); } -#[alloc_error_handler] -fn alloc_error_handler(_: alloc::alloc::Layout) -> ! { - core::intrinsics::abort(); -} - #[lang = "eh_personality"] fn eh_personality() -> ! { loop {} diff --git a/src/allocator.rs b/src/allocator.rs index 4bad33ee879ee..e90db44ece1fc 100644 --- a/src/allocator.rs +++ b/src/allocator.rs @@ -5,11 +5,10 @@ use rustc_ast::expand::allocator::{AllocatorKind, AllocatorTy, ALLOCATOR_METHODS use rustc_middle::bug; use rustc_middle::ty::TyCtxt; use rustc_session::config::OomStrategy; -use rustc_span::symbol::sym; use crate::GccContext; -pub(crate) unsafe fn codegen(tcx: TyCtxt<'_>, mods: &mut GccContext, _module_name: &str, kind: AllocatorKind, alloc_error_handler_kind: AllocatorKind) { +pub(crate) unsafe fn codegen(tcx: TyCtxt<'_>, mods: &mut GccContext, _module_name: &str, kind: AllocatorKind) { let context = &mods.context; let usize = match tcx.sess.target.pointer_width { @@ -87,37 +86,6 @@ pub(crate) unsafe fn codegen(tcx: TyCtxt<'_>, mods: &mut GccContext, _module_nam // as described in https://github.com/rust-lang/rust/commit/77a96ed5646f7c3ee8897693decc4626fe380643 } - let types = [usize, usize]; - let name = "__rust_alloc_error_handler".to_string(); - let args: Vec<_> = types.iter().enumerate() - .map(|(index, typ)| context.new_parameter(None, *typ, &format!("param{}", index))) - .collect(); - let func = context.new_function(None, FunctionType::Exported, void, &args, name, false); - - if tcx.sess.target.default_hidden_visibility { - #[cfg(feature="master")] - func.add_attribute(FnAttribute::Visibility(gccjit::Visibility::Hidden)); - } - - let callee = alloc_error_handler_kind.fn_name(sym::oom); - let args: Vec<_> = types.iter().enumerate() - .map(|(index, typ)| context.new_parameter(None, *typ, &format!("param{}", index))) - .collect(); - let callee = context.new_function(None, FunctionType::Extern, void, &args, callee, false); - #[cfg(feature="master")] - callee.add_attribute(FnAttribute::Visibility(gccjit::Visibility::Hidden)); - - let block = func.new_block("entry"); - - let args = args - .iter() - .enumerate() - .map(|(i, _)| func.get_param(i as i32).to_rvalue()) - .collect::>(); - let _ret = context.new_call(None, callee, &args); - //llvm::LLVMSetTailCall(ret, True); - block.end_with_void_return(None); - let name = OomStrategy::SYMBOL.to_string(); let global = context.new_global(None, GlobalKind::Exported, i8, name); let value = tcx.sess.opts.unstable_opts.oom.should_panic(); diff --git a/src/lib.rs b/src/lib.rs index 1cabb05de975b..1a20dbcebd40d 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -163,11 +163,11 @@ impl CodegenBackend for GccCodegenBackend { } impl ExtraBackendMethods for GccCodegenBackend { - fn codegen_allocator<'tcx>(&self, tcx: TyCtxt<'tcx>, module_name: &str, kind: AllocatorKind, alloc_error_handler_kind: AllocatorKind) -> Self::Module { + fn codegen_allocator<'tcx>(&self, tcx: TyCtxt<'tcx>, module_name: &str, kind: AllocatorKind) -> Self::Module { let mut mods = GccContext { context: Context::default(), }; - unsafe { allocator::codegen(tcx, &mut mods, module_name, kind, alloc_error_handler_kind); } + unsafe { allocator::codegen(tcx, &mut mods, module_name, kind); } mods }