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mark internal functions linker private (#381)

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Prevents unused functions in the emitted ELF object. Drive-by add a
missing test case (which misses a relocation under `-Oz` when all
internal functions are marked as private).

---------

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
This commit is contained in:
xermicus
2025-09-29 17:55:29 +02:00
committed by GitHub
parent 1cc4f967b4
commit 6858cb9a61
14 changed files with 111 additions and 65 deletions
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crates/llvm-context/src/polkavm/mod.rs
+13 -1
View File
@@ -83,7 +83,19 @@ pub fn link(
let bytecode_linked = ElfLinker::setup()?.link(bytecode, symbols.as_slice())?;
polkavm_linker(&bytecode_linked, strip_binary)
.map(|pvm| (pvm, ObjectFormat::PVM))
.unwrap_or_else(|_| (bytecode.to_vec(), ObjectFormat::ELF))
.unwrap_or_else(|error| {
if !error
.to_string()
.lines()
.map(|line| line.trim())
.filter(|line| !line.is_empty())
.all(|line| line.contains("found undefined symbol"))
{
panic!("ICE: linker: {error}");
}
(bytecode.to_vec(), ObjectFormat::ELF)
})
}
Err(error) => panic!("ICE: linker: {error}"),
})