3 files changed, 16 insertions, 10 deletions
diff --git a/compiler/rustc_codegen_llvm/src/allocator.rs b/compiler/rustc_codegen_llvm/src/allocator.rs
index e614115f64b..4a78e694979 100644
--- a/compiler/rustc_codegen_llvm/src/allocator.rs
+++ b/compiler/rustc_codegen_llvm/src/allocator.rs
@@ -7,6 +7,7 @@ use rustc_codegen_ssa::traits::BaseTypeCodegenMethods as _;
 use rustc_middle::bug;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::{DebugInfo, OomStrategy};
+use rustc_symbol_mangling::mangle_internal_symbol;
 
 use crate::builder::SBuilder;
 use crate::declare::declare_simple_fn;
@@ -53,8 +54,8 @@ pub(crate) unsafe fn codegen(
                 }
             };
 
-            let from_name = global_fn_name(method.name);
-            let to_name = default_fn_name(method.name);
+            let from_name = mangle_internal_symbol(tcx, &global_fn_name(method.name));
+            let to_name = mangle_internal_symbol(tcx, &default_fn_name(method.name));
 
             create_wrapper_function(tcx, &cx, &from_name, &to_name, &args, output, false);
         }
@@ -64,8 +65,8 @@ pub(crate) unsafe fn codegen(
     create_wrapper_function(
         tcx,
         &cx,
-        "__rust_alloc_error_handler",
-        alloc_error_handler_name(alloc_error_handler_kind),
+        &mangle_internal_symbol(tcx, "__rust_alloc_error_handler"),
+        &mangle_internal_symbol(tcx, alloc_error_handler_name(alloc_error_handler_kind)),
         &[usize, usize], // size, align
         None,
         true,
@@ -73,15 +74,15 @@ pub(crate) unsafe fn codegen(
 
     unsafe {
         // __rust_alloc_error_handler_should_panic
-        let name = OomStrategy::SYMBOL;
-        let ll_g = cx.declare_global(name, i8);
+        let name = mangle_internal_symbol(tcx, OomStrategy::SYMBOL);
+        let ll_g = cx.declare_global(&name, i8);
         llvm::set_visibility(ll_g, llvm::Visibility::from_generic(tcx.sess.default_visibility()));
         let val = tcx.sess.opts.unstable_opts.oom.should_panic();
         let llval = llvm::LLVMConstInt(i8, val as u64, False);
         llvm::set_initializer(ll_g, llval);
 
-        let name = NO_ALLOC_SHIM_IS_UNSTABLE;
-        let ll_g = cx.declare_global(name, i8);
+        let name = mangle_internal_symbol(tcx, NO_ALLOC_SHIM_IS_UNSTABLE);
+        let ll_g = cx.declare_global(&name, i8);
         llvm::set_visibility(ll_g, llvm::Visibility::from_generic(tcx.sess.default_visibility()));
         let llval = llvm::LLVMConstInt(i8, 0, False);
         llvm::set_initializer(ll_g, llval);
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index 9f8ec0ea526..926445c780b 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -27,6 +27,7 @@ use rustc_session::config::{
 };
 use rustc_span::source_map::Spanned;
 use rustc_span::{DUMMY_SP, Span};
+use rustc_symbol_mangling::mangle_internal_symbol;
 use rustc_target::spec::{HasTargetSpec, RelocModel, SmallDataThresholdSupport, Target, TlsModel};
 use smallvec::SmallVec;
 
@@ -1199,7 +1200,7 @@ impl<'ll> CodegenCx<'ll, '_> {
             Some(def_id) => self.get_static(def_id),
             _ => {
                 let ty = self.type_struct(&[self.type_ptr(), self.type_ptr()], false);
-                self.declare_global("rust_eh_catch_typeinfo", ty)
+                self.declare_global(&mangle_internal_symbol(self.tcx, "rust_eh_catch_typeinfo"), ty)
             }
         };
         self.eh_catch_typeinfo.set(Some(eh_catch_typeinfo));
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index 660fc7ec4c4..67135fcc308 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -14,6 +14,7 @@ use rustc_middle::ty::layout::{FnAbiOf, HasTyCtxt, HasTypingEnv, LayoutOf};
 use rustc_middle::ty::{self, GenericArgsRef, Ty};
 use rustc_middle::{bug, span_bug};
 use rustc_span::{Span, Symbol, sym};
+use rustc_symbol_mangling::mangle_internal_symbol;
 use rustc_target::callconv::{FnAbi, PassMode};
 use rustc_target::spec::{HasTargetSpec, PanicStrategy};
 use tracing::debug;
@@ -812,7 +813,10 @@ fn codegen_msvc_try<'ll>(
         let type_name = bx.const_bytes(b"rust_panic\0");
         let type_info =
             bx.const_struct(&[type_info_vtable, bx.const_null(bx.type_ptr()), type_name], false);
-        let tydesc = bx.declare_global("__rust_panic_type_info", bx.val_ty(type_info));
+        let tydesc = bx.declare_global(
+            &mangle_internal_symbol(bx.tcx, "__rust_panic_type_info"),
+            bx.val_ty(type_info),
+        );
 
         llvm::set_linkage(tydesc, llvm::Linkage::LinkOnceODRLinkage);
         if bx.cx.tcx.sess.target.supports_comdat() {