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-rw-r--r--compiler/rustc_codegen_gcc/src/consts.rs31
1 files changed, 8 insertions, 23 deletions
diff --git a/compiler/rustc_codegen_gcc/src/consts.rs b/compiler/rustc_codegen_gcc/src/consts.rs
index 81f533288..ea8ab7611 100644
--- a/compiler/rustc_codegen_gcc/src/consts.rs
+++ b/compiler/rustc_codegen_gcc/src/consts.rs
@@ -8,13 +8,11 @@ use rustc_middle::mir::mono::MonoItem;
use rustc_middle::ty::{self, Instance, Ty};
use rustc_middle::ty::layout::LayoutOf;
use rustc_middle::mir::interpret::{self, ConstAllocation, ErrorHandled, Scalar as InterpScalar, read_target_uint};
-use rustc_span::Span;
use rustc_span::def_id::DefId;
use rustc_target::abi::{self, Align, HasDataLayout, Primitive, Size, WrappingRange};
use crate::base;
use crate::context::CodegenCx;
-use crate::errors::LinkageConstOrMutType;
use crate::type_of::LayoutGccExt;
impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
@@ -239,12 +237,12 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
}
Node::ForeignItem(&hir::ForeignItem {
- span,
+ span: _,
kind: hir::ForeignItemKind::Static(..),
..
}) => {
let fn_attrs = self.tcx.codegen_fn_attrs(def_id);
- check_and_apply_linkage(&self, &fn_attrs, ty, sym, span)
+ check_and_apply_linkage(&self, &fn_attrs, ty, sym)
}
item => bug!("get_static: expected static, found {:?}", item),
@@ -257,8 +255,7 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
//debug!("get_static: sym={} item_attr={:?}", sym, self.tcx.item_attrs(def_id));
let attrs = self.tcx.codegen_fn_attrs(def_id);
- let span = self.tcx.def_span(def_id);
- let global = check_and_apply_linkage(&self, &attrs, ty, sym, span);
+ let global = check_and_apply_linkage(&self, &attrs, ty, sym);
let needs_dll_storage_attr = false; // TODO(antoyo)
@@ -297,12 +294,12 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
pub fn const_alloc_to_gcc<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, alloc: ConstAllocation<'tcx>) -> RValue<'gcc> {
let alloc = alloc.inner();
- let mut llvals = Vec::with_capacity(alloc.provenance().len() + 1);
+ let mut llvals = Vec::with_capacity(alloc.provenance().ptrs().len() + 1);
let dl = cx.data_layout();
let pointer_size = dl.pointer_size.bytes() as usize;
let mut next_offset = 0;
- for &(offset, alloc_id) in alloc.provenance().iter() {
+ for &(offset, alloc_id) in alloc.provenance().ptrs().iter() {
let offset = offset.bytes();
assert_eq!(offset as usize as u64, offset);
let offset = offset as usize;
@@ -355,24 +352,12 @@ pub fn codegen_static_initializer<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, def_id
Ok((const_alloc_to_gcc(cx, alloc), alloc))
}
-fn check_and_apply_linkage<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, attrs: &CodegenFnAttrs, ty: Ty<'tcx>, sym: &str, span: Span) -> LValue<'gcc> {
+fn check_and_apply_linkage<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, attrs: &CodegenFnAttrs, ty: Ty<'tcx>, sym: &str) -> LValue<'gcc> {
let is_tls = attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL);
let llty = cx.layout_of(ty).gcc_type(cx, true);
- if let Some(linkage) = attrs.linkage {
- // If this is a static with a linkage specified, then we need to handle
- // it a little specially. The typesystem prevents things like &T and
- // extern "C" fn() from being non-null, so we can't just declare a
- // static and call it a day. Some linkages (like weak) will make it such
- // that the static actually has a null value.
- let llty2 =
- if let ty::RawPtr(ref mt) = ty.kind() {
- cx.layout_of(mt.ty).gcc_type(cx, true)
- }
- else {
- cx.sess().emit_fatal(LinkageConstOrMutType { span: span })
- };
+ if let Some(linkage) = attrs.import_linkage {
// Declare a symbol `foo` with the desired linkage.
- let global1 = cx.declare_global_with_linkage(&sym, llty2, base::global_linkage_to_gcc(linkage));
+ let global1 = cx.declare_global_with_linkage(&sym, cx.type_i8(), base::global_linkage_to_gcc(linkage));
// Declare an internal global `extern_with_linkage_foo` which
// is initialized with the address of `foo`. If `foo` is