Debian bookworm provides Rust 1.78 on all architectures except for mips64el, as part of its packaging of Firefox. Michael Tokarev confirmed that it is not a problem at this point to require a rustup-based toolchain when building for mips64el on bookworm.
This series therefore updates the minimum supported Rust version to 1.77 (since 1.78 does not really add anything that QEMU needs). It removes several temporary compatibility shims (including offset_of) and enables the introduction of some more modern idioms, for example cast_const()/cast_mut() and "let ... else". These were useful as early experiments with procedural macros and with supporting old versions of Rust, but are not needed anymore. The remaining major obstacle is const_refs_static, which was stabilized in 1.83.0 and allows for much-improved vmstate bindings. These were prototyped by Zhao and myself and I'll post them shortly for reference. It's unlikely that Debian bookworm will update rustc-web any further, since the next Firefox ESR version is expected roughly at the same time as the Debian trixie release. Paolo Paolo Bonzini (9): lcitool: use Rust 1.78 for Debian bookworm rust: use std::ffi instead of std::os::raw rust: let bilge use "let ... else" rust: qemu_api_macros: use "let ... else" rust: use MaybeUninit::zeroed() in const context rust: remove offset_of replacement rust: replace c_str! with c"" literals rust: enable clippy::ptr_cast_constness docs: rust: update for newer minimum supported version docs/about/build-platforms.rst | 7 +- docs/devel/rust.rst | 38 +--- rust/Cargo.lock | 1 - rust/Cargo.toml | 4 +- rust/clippy.toml | 2 +- rust/hw/char/pl011/Cargo.toml | 2 +- rust/hw/char/pl011/src/device.rs | 4 +- rust/hw/char/pl011/src/device_class.rs | 13 +- rust/hw/char/pl011/src/lib.rs | 6 +- rust/hw/timer/hpet/Cargo.toml | 2 +- rust/hw/timer/hpet/src/fw_cfg.rs | 6 +- rust/hw/timer/hpet/src/hpet.rs | 28 ++- rust/hw/timer/hpet/src/lib.rs | 4 +- rust/qemu-api-macros/Cargo.toml | 2 +- rust/qemu-api-macros/src/lib.rs | 113 +++++------- rust/qemu-api/Cargo.toml | 5 +- rust/qemu-api/build.rs | 7 - rust/qemu-api/meson.build | 5 - rust/qemu-api/src/c_str.rs | 61 ------- rust/qemu-api/src/cell.rs | 6 +- rust/qemu-api/src/chardev.rs | 5 +- rust/qemu-api/src/irq.rs | 6 +- rust/qemu-api/src/lib.rs | 7 +- rust/qemu-api/src/memory.rs | 3 +- rust/qemu-api/src/offset_of.rs | 168 ------------------ rust/qemu-api/src/qdev.rs | 9 +- rust/qemu-api/src/qom.rs | 7 +- rust/qemu-api/src/timer.rs | 4 +- rust/qemu-api/src/vmstate.rs | 14 +- rust/qemu-api/src/zeroable.rs | 104 ++--------- rust/qemu-api/tests/tests.rs | 11 +- rust/qemu-api/tests/vmstate_tests.rs | 27 +-- subprojects/bilge-impl-0.2-rs.wrap | 2 - .../packagefiles/bilge-impl-1.63.0.patch | 45 ----- tests/lcitool/mappings.yml | 3 + 35 files changed, 146 insertions(+), 585 deletions(-) delete mode 100644 rust/qemu-api/src/c_str.rs delete mode 100644 rust/qemu-api/src/offset_of.rs delete mode 100644 subprojects/packagefiles/bilge-impl-1.63.0.patch -- 2.49.0
