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Add unstable -Zdefault-hidden-visibility cmdline flag for rustc.

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The new flag has been described in the Major Change Proposal at
https://github.com/rust-lang/compiler-team/issues/656
This commit is contained in:
Lukasz Anforowicz
2023-12-13 21:14:18 +00:00
parent 56d25ba5ea
commit 981c4e3ce6
10 changed files with 66 additions and 8 deletions
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6
compiler/rustc_codegen_llvm/src/allocator.rs
View File

@@ -76,7 +76,7 @@ pub(crate) unsafe fn codegen(
// __rust_alloc_error_handler_should_panic
let name = OomStrategy::SYMBOL;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.target.default_hidden_visibility {
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
}
let val = tcx.sess.opts.unstable_opts.oom.should_panic();
@@ -85,7 +85,7 @@ pub(crate) unsafe fn codegen(
let name = NO_ALLOC_SHIM_IS_UNSTABLE;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.target.default_hidden_visibility {
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
}
let llval = llvm::LLVMConstInt(i8, 0, False);
@@ -130,7 +130,7 @@ fn create_wrapper_function(
None
};
if tcx.sess.target.default_hidden_visibility {
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(llfn, llvm::Visibility::Hidden);
}
if tcx.sess.must_emit_unwind_tables() {

4
compiler/rustc_codegen_llvm/src/declare.rs
View File

@@ -84,7 +84,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> {
fn_type: &'ll Type,
) -> &'ll Value {
// Declare C ABI functions with the visibility used by C by default.
let visibility = if self.tcx.sess.target.default_hidden_visibility {
let visibility = if self.tcx.sess.default_hidden_visibility() {
llvm::Visibility::Hidden
} else {
llvm::Visibility::Default
@@ -107,7 +107,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> {
unnamed: llvm::UnnamedAddr,
fn_type: &'ll Type,
) -> &'ll Value {
let visibility = if self.tcx.sess.target.default_hidden_visibility {
let visibility = if self.tcx.sess.default_hidden_visibility() {
llvm::Visibility::Hidden
} else {
llvm::Visibility::Default