dtor

What's Changed

• Bumped internal proc macro minimum version (should not result in any downstream visible changes)
• Document crate_path and re-exports by @mmastrac in #514

Full Changelog: dtor-1.0.5...dtor-1.0.6

Changed

• Bump linktime-proc-macro dependency to 0.2.3.

Documentation

• Documented the crate_path override for re-exporting the macro from another crate.

Changed

• Bump link-section dependency to 0.18.1.
• Fixed WASM import module for atexit to support Rust 1.96.

Changed

• Bump link-section dependency to 0.18.0.
• Improve error messages for bad attribute values.

Fixed

• #[dtor] requires significantly less macro recursion.

Added

• Support for UEFI targets (.fini_array matching gnu-efi)
• Fallback to .fini_array for unsupported targets (with a warning)

Changed

• target_vendor = "pc" is now target_os = "windows". This should be a strictly increasing set of support for windows targets.

Changed

• OpenBSD support uses method = at_module_exit rather than method = linker by default due to C library inconsistencies. When using method = linker, the link_section is now .dtors rather than .fini_array.
• Documentation improvements.

Changed

• Stabilized (yay!). Functionally identical to 0.14.1. Thanks to all the contributors who helped along the way! Please file any upgrade issues in https://github.com/mmastrac/linktime/issues.
• For those upgrading from earlier versions, the major changes for you to note are:
  • #[dtor(unsafe)] is now required for #[dtor] items. If you are building a binary, you can use RUSTFLAGS="--cfg linktime_no_fail_on_missing_unsafe" (or alternatively, specify this in your config.toml file) to bypass the error.
  • For those re-exporting dtor from their own crates: the dtor::declarative::dtor! macro should be preferred over #[dtor(crate_path = ...)]. The latter form will continue to work, but the declarative macro is far more stable for most use cases. See https://docs.rs/dtor/latest/dtor/declarative/macro.dtor.html for more details.

Changed

• wasm32-unknown-unknown would run dtor items on each call of an exported function.

Fixed

• WASM support now uses atexit on all platforms (including wasm32-unknown-unknown).
• Typos and other documentation nits.

Changed

• Documentation polish and typo fixes.

Changed

• used_linker feature moved to --cfg linktime_used_linker flag.

Added

• Support for #[dtor] on impl items. To be valid, the fn must have no self parameter and must not access any generic parameters from the outer item.
• Added life before main documentation to all crates.

Removed

• Removed support code for ctor's deprecated dtor macros.

Added

• Added method attribute to dtor macro.
• Added link_section and export_name_prefix attributes to dtor macro.
• AIX support for ctor/dtor crates.

Changed

• Significant rewrite to ctor/dtor macros and documentation.
• Renamed at_library_exit to at_module_exit in dtor crate.
• Macro attributes and crate features are auto-documented.

Removed

• cxa_atexit feature from dtor crate. (appropriate method is now used per-platform)
• export_native feature from dtor crate. (natives always exported)

Added

• Included licenses in all files.
• Bumped proc-macro dependency versions.
• dtor crate exports native module with at_binary_exit and at_library_exit functions.

Fixed

• Various hardening fixes under Miri.