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Revert "Switch to -ffunction-sections by default"

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This reverts commit 65c5c7f8cf.

It unfortunately regresses the size of the target dir by a non-trivial
amount. It could be re-enabled again once each subsection doesn't get a
unique name anymore.
This commit is contained in:
bjorn3 2024-12-05 12:42:17 +00:00
parent 92b5873072
commit 0974099e30
1 changed files with 4 additions and 1 deletions
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5
src/driver/aot.rs
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@ -333,7 +333,10 @@ fn make_module(sess: &Session, name: String) -> UnwindModule<ObjectModule> {
let mut builder =
ObjectBuilder::new(isa, name + ".o", cranelift_module::default_libcall_names()).unwrap();
builder.per_function_section(sess.opts.unstable_opts.function_sections.unwrap_or(true));
// 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.unstable_opts.function_sections.unwrap_or(false));
UnwindModule::new(ObjectModule::new(builder), true)
}