rust-lang/rust
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Make all compiler-builtins symbols hidden

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This matches cg_llvm

Fixes #1152
This commit is contained in:
bjorn3
2021-03-27 17:32:41 +01:00
parent f3e8f6dc08
commit 94b51d14e6
7 changed files with 59 additions and 17 deletions
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11
src/driver/jit.rs
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@@ -30,6 +30,7 @@ pub(super) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
let mut jit_builder =
JITBuilder::with_isa(crate::build_isa(tcx.sess), cranelift_module::default_libcall_names());
jit_builder.hotswap(matches!(backend_config.codegen_mode, CodegenMode::JitLazy));
crate::compiler_builtins::register_functions_for_jit(&mut jit_builder);
jit_builder.symbols(imported_symbols);
let mut jit_module = JITModule::new(jit_builder);
assert_eq!(pointer_ty(tcx), jit_module.target_config().pointer_type());
@@ -47,15 +48,12 @@ pub(super) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
super::time(tcx, "codegen mono items", || {
super::predefine_mono_items(&mut cx, &mono_items);
for (mono_item, (linkage, visibility)) in mono_items {
let linkage = crate::linkage::get_clif_linkage(mono_item, linkage, visibility);
for (mono_item, _) in mono_items {
match mono_item {
MonoItem::Fn(inst) => match backend_config.codegen_mode {
CodegenMode::Aot => unreachable!(),
CodegenMode::Jit => {
cx.tcx
.sess
.time("codegen fn", || crate::base::codegen_fn(&mut cx, inst, linkage));
cx.tcx.sess.time("codegen fn", || crate::base::codegen_fn(&mut cx, inst));
}
CodegenMode::JitLazy => codegen_shim(&mut cx, inst),
},
@@ -175,8 +173,7 @@ extern "C" fn __clif_jit_fn(instance_ptr: *const Instance<'static>) -> *const u8
jit_module.prepare_for_function_redefine(func_id).unwrap();
let mut cx = crate::CodegenCx::new(tcx, backend_config, jit_module, false);
tcx.sess
.time("codegen fn", || crate::base::codegen_fn(&mut cx, instance, Linkage::Export));
tcx.sess.time("codegen fn", || crate::base::codegen_fn(&mut cx, instance));
let (global_asm, _debug_context, unwind_context) = cx.finalize();
assert!(global_asm.is_empty());