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Folkert 2022-08-30 12:32:19 +02:00
parent d433448d6f
commit 3e78395237
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1 changed files with 14 additions and 8 deletions
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22
crates/linker/src/lib.rs
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@ -136,7 +136,7 @@ fn generate_dynamic_lib(
}
}
if !dynhost_is_up_to_date(target, dummy_lib_path, &custom_names) {
if !dummy_lib_is_up_to_date(target, dummy_lib_path, &custom_names) {
let bytes = crate::generate_dylib::generate(target, &custom_names)
.unwrap_or_else(|e| internal_error!("{}", e));
@ -153,21 +153,27 @@ fn object_matches_target<'a>(target: &Triple, object: &object::File<'a, &'a [u8]
return false;
}
let actual = object.format();
let expected = match target.operating_system {
let target_format = match target.operating_system {
TLO::Linux => object::BinaryFormat::Elf,
other => internal_error!("unexpected target {:?}", other),
TLO::Windows => object::BinaryFormat::Pe,
_ => todo!("surgical linker does not support target {:?}", target),
};
actual == expected
object.format() == target_format
}
TLA::Aarch64(_) => object.architecture() == object::Architecture::Aarch64,
_ => false,
_ => todo!("surgical linker does not support target {:?}", target),
}
}
fn dynhost_is_up_to_date(target: &Triple, dummy_lib_path: &Path, custom_names: &[String]) -> bool {
/// Checks whether the dummy `.dll/.so` is up to date, in other words that it exports exactly the
/// symbols that it is supposed to export, and is built for the right target. If this is the case,
/// we can skip rebuildingthe dummy lib.
fn dummy_lib_is_up_to_date(
target: &Triple,
dummy_lib_path: &Path,
custom_names: &[String],
) -> bool {
if !std::path::Path::exists(dummy_lib_path) {
return false;
}