bjoernager/rust
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Merge commit '03f01bbe90' into update_cg_clif-2020-11-01

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bjorn3 2020-11-03 11:00:04 +01:00
commit 216c4ae463
53 changed files with 609 additions and 385 deletions
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12
compiler/rustc_codegen_cranelift/src/backend.rs
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@ -73,7 +73,7 @@ impl WriteDebugInfo for ObjectProduct {
// FIXME use SHT_X86_64_UNWIND for .eh_frame
let section_id = self.object.add_section(
segment,
name.clone(),
name,
if id == SectionId::EhFrame {
SectionKind::ReadOnlyData
} else {
@ -198,9 +198,9 @@ pub(crate) fn make_module(sess: &Session, name: String) -> ObjectModule {
cranelift_module::default_libcall_names(),
)
.unwrap();
if std::env::var("CG_CLIF_FUNCTION_SECTIONS").is_ok() {
builder.per_function_section(true);
}
let module = ObjectModule::new(builder);
module
// Unlike cg_llvm, cg_clif defaults to disabling -Zfunction-sections. For cg_llvm binary size
// is important, while cg_clif cares more about compilation times. Enabling -Zfunction-sections
// can easily double the amount of time necessary to perform linking.
builder.per_function_section(sess.opts.debugging_opts.function_sections.unwrap_or(false));
ObjectModule::new(builder)
}