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Allow overriding linker scripts in built-in targets #97749

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Allow overriding linker scripts in built-in targets #97749

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10 changes: 10 additions & 0 deletions compiler/rustc_codegen_ssa/src/back/link.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1597,6 +1597,16 @@ fn add_pre_link_args(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor)

/// Add a link script embedded in the target, if applicable.
fn add_link_script(cmd: &mut dyn Linker, sess: &Session, tmpdir: &Path, crate_type: CrateType) {
fn is_script_arg(arg: &str) -> bool {
arg.starts_with("--script")
|| arg.starts_with("-T")
|| arg.starts_with("--default-script")
|| arg.starts_with("-dT")
}
// Omit the embedded linker script if a user supplied one
if sess.opts.cg.link_args.iter().any(|arg| is_script_arg(arg)) {
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rustc should not try interpreting raw linker arguments.

Maybe rustc can use --default-script for the target-specified script to be overridable?

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We should probably use --default-script, but lld doesn't support it yet so that would break the workflow for the psp target so I'll close this PR for now.

return;
}
match (crate_type, &sess.target.link_script) {
(CrateType::Cdylib | CrateType::Executable, Some(script)) => {
if !sess.target.linker_is_gnu {
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