util/attributes: error on malformed #[export_name] input #4389
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Emit a diagnostic when #[export_name] is used without arguments or with invalid arguments (non-string literals). This prevents silent failures or backend crashes when lowering the attribute to GIMPLE, ensuring the attribute follows the expected form: #[export_name = name]. Fixes Rust-GCC#4387 gcc/rust/ChangeLog: * util/rust-attributes.cc (check_export_name_attribute): New helper. (AttributeChecker::visit): Check export_name on functions. gcc/testsuite/ChangeLog: * rust/compile/issue-4387.rs: New test. Signed-off-by: Jayant Chauhan <[email protected]>
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Jan 15, 2026
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Emit a diagnostic when #[export_name] is used without arguments or with invalid arguments (non-string literals). This prevents silent failures or backend crashes when lowering the attribute to GIMPLE, ensuring the attribute follows the expected form: #[export_name = name].
Fixes #4387
gcc/rust/ChangeLog:
gcc/testsuite/ChangeLog: