diff options
8 files changed, 11 insertions, 75 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/constant.rs b/compiler/rustc_codegen_cranelift/src/constant.rs index a04cfa27237..bec546badc9 100644 --- a/compiler/rustc_codegen_cranelift/src/constant.rs +++ b/compiler/rustc_codegen_cranelift/src/constant.rs @@ -310,7 +310,10 @@ fn data_id_for_static( // `extern_with_linkage_foo` will instead be initialized to // zero. - let ref_name = format!("_rust_extern_with_linkage_{}", symbol_name); + let ref_name = format!( + "_rust_extern_with_linkage_{:016x}_{symbol_name}", + tcx.stable_crate_id(LOCAL_CRATE) + ); let ref_data_id = module.declare_data(&ref_name, Linkage::Local, false, false).unwrap(); let mut data = DataDescription::new(); data.set_align(align); diff --git a/compiler/rustc_codegen_gcc/src/consts.rs b/compiler/rustc_codegen_gcc/src/consts.rs index c04c75e1b11..873f1f1951c 100644 --- a/compiler/rustc_codegen_gcc/src/consts.rs +++ b/compiler/rustc_codegen_gcc/src/consts.rs @@ -6,6 +6,7 @@ use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods, ConstCodegenMethods, StaticCodegenMethods, }; use rustc_hir::def::DefKind; +use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs}; use rustc_middle::mir::interpret::{ self, ConstAllocation, ErrorHandled, Scalar as InterpScalar, read_target_uint, @@ -384,8 +385,8 @@ fn check_and_apply_linkage<'gcc, 'tcx>( // linkage and there are no definitions), then // `extern_with_linkage_foo` will instead be initialized to // zero. - let mut real_name = "_rust_extern_with_linkage_".to_string(); - real_name.push_str(sym); + let real_name = + format!("_rust_extern_with_linkage_{:016x}_{sym}", cx.tcx.stable_crate_id(LOCAL_CRATE)); let global2 = cx.define_global(&real_name, gcc_type, is_tls, attrs.link_section); // TODO(antoyo): set linkage. let value = cx.const_ptrcast(global1.get_address(None), gcc_type); diff --git a/compiler/rustc_codegen_llvm/src/consts.rs b/compiler/rustc_codegen_llvm/src/consts.rs index 0b96b63bc85..6b06daf3477 100644 --- a/compiler/rustc_codegen_llvm/src/consts.rs +++ b/compiler/rustc_codegen_llvm/src/consts.rs @@ -5,7 +5,7 @@ use rustc_codegen_ssa::common; use rustc_codegen_ssa::traits::*; use rustc_hir::LangItem; use rustc_hir::def::DefKind; -use rustc_hir::def_id::DefId; +use rustc_hir::def_id::{DefId, LOCAL_CRATE}; use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs}; use rustc_middle::mir::interpret::{ Allocation, ConstAllocation, ErrorHandled, InitChunk, Pointer, Scalar as InterpScalar, @@ -191,8 +191,8 @@ fn check_and_apply_linkage<'ll, 'tcx>( // linkage and there are no definitions), then // `extern_with_linkage_foo` will instead be initialized to // zero. - let mut real_name = "_rust_extern_with_linkage_".to_string(); - real_name.push_str(sym); + let real_name = + format!("_rust_extern_with_linkage_{:016x}_{sym}", cx.tcx.stable_crate_id(LOCAL_CRATE)); let g2 = cx.define_global(&real_name, llty).unwrap_or_else(|| { cx.sess().dcx().emit_fatal(SymbolAlreadyDefined { span: cx.tcx.def_span(def_id), diff --git a/tests/codegen-llvm/sanitizer/cfi/external_weak_symbols.rs b/tests/codegen-llvm/sanitizer/cfi/external_weak_symbols.rs index 00e9b5029af..b3cb6dfdd37 100644 --- a/tests/codegen-llvm/sanitizer/cfi/external_weak_symbols.rs +++ b/tests/codegen-llvm/sanitizer/cfi/external_weak_symbols.rs @@ -10,7 +10,7 @@ unsafe extern "C" { #[linkage = "extern_weak"] static FOO: Option<unsafe extern "C" fn(f64) -> ()>; } -// CHECK: @_rust_extern_with_linkage_FOO = internal global ptr @FOO +// CHECK: @_rust_extern_with_linkage_{{.*}}_FOO = internal global ptr @FOO fn main() { unsafe { diff --git a/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs b/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs deleted file mode 100644 index 23848056ee1..00000000000 --- a/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs +++ /dev/null @@ -1,26 +0,0 @@ -// rust-lang/rust#61232: We used to ICE when trying to detect a -// collision on the symbol generated for the external linkage item in -// an extern crate. - -//@ build-fail -//@ aux-build:def_colliding_external.rs -// FIXME(#83838) codegen-units=1 triggers llvm asserts -//@ compile-flags: -Ccodegen-units=16 - -extern crate def_colliding_external as dep1; - -#[no_mangle] -pub static _rust_extern_with_linkage_collision: i32 = 0; - -mod dep2 { - #[no_mangle] - pub static collision: usize = 0; -} - -fn main() { - unsafe { - println!("{:p}", &dep1::collision); - } -} - -//~? ERROR symbol `collision` is already defined diff --git a/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr b/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr deleted file mode 100644 index 2448c160c5c..00000000000 --- a/tests/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: symbol `collision` is already defined - --> $DIR/auxiliary/def_colliding_external.rs:6:5 - | -LL | pub static collision: *const i32; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 1 previous error - diff --git a/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs b/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs deleted file mode 100644 index df952504eef..00000000000 --- a/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs +++ /dev/null @@ -1,26 +0,0 @@ -//@ build-fail -// FIXME(#83838) codegen-units=1 triggers llvm asserts -//@ compile-flags: -Ccodegen-units=16 -#![feature(linkage)] - -mod dep1 { - extern "C" { - #[linkage = "external"] - #[no_mangle] - pub static collision: *const i32; //~ ERROR symbol `collision` is already defined - } -} - -#[no_mangle] -pub static _rust_extern_with_linkage_collision: i32 = 0; - -mod dep2 { - #[no_mangle] - pub static collision: usize = 0; -} - -fn main() { - unsafe { - println!("{:p}", &dep1::collision); - } -} diff --git a/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr b/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr deleted file mode 100644 index fcaaa39b674..00000000000 --- a/tests/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: symbol `collision` is already defined - --> $DIR/linkage-detect-local-generated-name-collision.rs:10:9 - | -LL | pub static collision: *const i32; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 1 previous error - |