diff options
Diffstat (limited to 'rust/qemu-api/src/definitions.rs')
| -rw-r--r-- | rust/qemu-api/src/definitions.rs | 68 |
1 files changed, 31 insertions, 37 deletions
diff --git a/rust/qemu-api/src/definitions.rs b/rust/qemu-api/src/definitions.rs index 60bd3f8aaa..26597934bb 100644 --- a/rust/qemu-api/src/definitions.rs +++ b/rust/qemu-api/src/definitions.rs @@ -4,7 +4,7 @@ //! Definitions required by QEMU when registering a device. -use ::core::ffi::{c_void, CStr}; +use std::{ffi::CStr, os::raw::c_void}; use crate::bindings::{Object, ObjectClass, TypeInfo}; @@ -29,46 +29,40 @@ pub trait Class { #[macro_export] macro_rules! module_init { - ($func:expr, $type:expr) => { - #[used] - #[cfg_attr(target_os = "linux", link_section = ".ctors")] - #[cfg_attr(target_os = "macos", link_section = "__DATA,__mod_init_func")] - #[cfg_attr(target_os = "windows", link_section = ".CRT$XCU")] - pub static LOAD_MODULE: extern "C" fn() = { - extern "C" fn __load() { - unsafe { - $crate::bindings::register_module_init(Some($func), $type); - } - } - - __load - }; - }; - (qom: $func:ident => $body:block) => { - // NOTE: To have custom identifiers for the ctor func we need to either supply - // them directly as a macro argument or create them with a proc macro. - #[used] - #[cfg_attr(target_os = "linux", link_section = ".ctors")] - #[cfg_attr(target_os = "macos", link_section = "__DATA,__mod_init_func")] - #[cfg_attr(target_os = "windows", link_section = ".CRT$XCU")] - pub static LOAD_MODULE: extern "C" fn() = { - extern "C" fn __load() { - #[no_mangle] - unsafe extern "C" fn $func() { + ($type:ident => $body:block) => { + const _: () = { + #[used] + #[cfg_attr( + not(any(target_vendor = "apple", target_os = "windows")), + link_section = ".init_array" + )] + #[cfg_attr(target_vendor = "apple", link_section = "__DATA,__mod_init_func")] + #[cfg_attr(target_os = "windows", link_section = ".CRT$XCU")] + pub static LOAD_MODULE: extern "C" fn() = { + extern "C" fn init_fn() { $body } - unsafe { - $crate::bindings::register_module_init( - Some($func), - $crate::bindings::module_init_type::MODULE_INIT_QOM, - ); + extern "C" fn ctor_fn() { + unsafe { + $crate::bindings::register_module_init( + Some(init_fn), + $crate::bindings::module_init_type::$type, + ); + } } - } - __load + ctor_fn + }; }; }; + + // shortcut because it's quite common that $body needs unsafe {} + ($type:ident => unsafe $body:block) => { + $crate::module_init! { + $type => { unsafe { $body } } + } + }; } #[macro_export] @@ -81,13 +75,13 @@ macro_rules! type_info { } else { ::core::ptr::null_mut() }, - instance_size: ::core::mem::size_of::<$t>() as $crate::bindings::size_t, - instance_align: ::core::mem::align_of::<$t>() as $crate::bindings::size_t, + instance_size: ::core::mem::size_of::<$t>(), + instance_align: ::core::mem::align_of::<$t>(), instance_init: <$t as $crate::definitions::ObjectImpl>::INSTANCE_INIT, instance_post_init: <$t as $crate::definitions::ObjectImpl>::INSTANCE_POST_INIT, instance_finalize: <$t as $crate::definitions::ObjectImpl>::INSTANCE_FINALIZE, abstract_: <$t as $crate::definitions::ObjectImpl>::ABSTRACT, - class_size: ::core::mem::size_of::<<$t as $crate::definitions::ObjectImpl>::Class>() as $crate::bindings::size_t, + class_size: ::core::mem::size_of::<<$t as $crate::definitions::ObjectImpl>::Class>(), class_init: <<$t as $crate::definitions::ObjectImpl>::Class as $crate::definitions::Class>::CLASS_INIT, class_base_init: <<$t as $crate::definitions::ObjectImpl>::Class as $crate::definitions::Class>::CLASS_BASE_INIT, class_data: ::core::ptr::null_mut(), |