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https://github.com/Motorhead1991/qemu.git
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rust: vmstate: remove translation of C vmstate macros
Keep vmstate_clock!; because it uses a field of type VMStateDescription, it cannot be converted to the VMState trait without access to the const_refs_static feature. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
b800a31321
commit
9d4899496b
1 changed files with 23 additions and 251 deletions
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@ -21,8 +21,8 @@
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//! [`vmstate_fields`](crate::vmstate_fields).
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//!
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//! * direct equivalents to the C macros declared in
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//! `include/migration/vmstate.h`. These are not type-safe and should not be
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//! used if the equivalent functionality is available with `vmstate_of!`.
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//! `include/migration/vmstate.h`. These are not type-safe and only provide
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//! functionality that is missing from `vmstate_of!`.
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use core::{marker::PhantomData, mem, ptr::NonNull};
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@ -407,223 +407,16 @@ unsafe impl<T: VMState, const N: usize> VMState for [T; N] {
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const BASE: VMStateField = <T as VMState>::BASE.with_array_flag(N);
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}
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#[doc(alias = "VMSTATE_UNUSED_BUFFER")]
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#[macro_export]
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macro_rules! vmstate_unused_buffer {
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($field_exists_fn:expr, $version_id:expr, $size:expr) => {{
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$crate::bindings::VMStateField {
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name: c_str!("unused").as_ptr(),
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err_hint: ::core::ptr::null(),
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offset: 0,
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size: $size,
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start: 0,
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num: 0,
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num_offset: 0,
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size_offset: 0,
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info: unsafe { ::core::ptr::addr_of!($crate::bindings::vmstate_info_unused_buffer) },
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flags: VMStateFlags::VMS_BUFFER,
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vmsd: ::core::ptr::null(),
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version_id: $version_id,
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struct_version_id: 0,
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field_exists: $field_exists_fn,
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}
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}};
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}
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#[doc(alias = "VMSTATE_UNUSED_V")]
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#[macro_export]
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macro_rules! vmstate_unused_v {
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($version_id:expr, $size:expr) => {{
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$crate::vmstate_unused_buffer!(None, $version_id, $size)
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}};
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}
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#[doc(alias = "VMSTATE_UNUSED")]
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#[macro_export]
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macro_rules! vmstate_unused {
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($size:expr) => {{
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$crate::vmstate_unused_v!(0, $size)
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}};
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}
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#[doc(alias = "VMSTATE_SINGLE_TEST")]
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#[macro_export]
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macro_rules! vmstate_single_test {
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($field_name:ident, $struct_name:ty, $field_exists_fn:expr, $version_id:expr, $info:expr, $size:expr) => {{
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), 0)
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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err_hint: ::core::ptr::null(),
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offset: $crate::offset_of!($struct_name, $field_name),
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name: $crate::c_str!("unused").as_ptr(),
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size: $size,
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start: 0,
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num: 0,
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num_offset: 0,
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size_offset: 0,
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info: unsafe { $info },
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flags: VMStateFlags::VMS_SINGLE,
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vmsd: ::core::ptr::null(),
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version_id: $version_id,
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struct_version_id: 0,
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field_exists: $field_exists_fn,
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}
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}};
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}
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#[doc(alias = "VMSTATE_SINGLE")]
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#[macro_export]
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macro_rules! vmstate_single {
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($field_name:ident, $struct_name:ty, $version_id:expr, $info:expr, $size:expr) => {{
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$crate::vmstate_single_test!($field_name, $struct_name, None, $version_id, $info, $size)
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}};
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}
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#[doc(alias = "VMSTATE_UINT32_V")]
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#[macro_export]
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macro_rules! vmstate_uint32_v {
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($field_name:ident, $struct_name:ty, $version_id:expr) => {{
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$crate::vmstate_single!(
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$field_name,
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$struct_name,
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$version_id,
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::core::ptr::addr_of!($crate::bindings::vmstate_info_uint32),
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::core::mem::size_of::<u32>()
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)
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}};
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}
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#[doc(alias = "VMSTATE_UINT32")]
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#[macro_export]
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macro_rules! vmstate_uint32 {
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($field_name:ident, $struct_name:ty) => {{
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$crate::vmstate_uint32_v!($field_name, $struct_name, 0)
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}};
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}
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#[doc(alias = "VMSTATE_ARRAY")]
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#[macro_export]
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macro_rules! vmstate_array {
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($field_name:ident, $struct_name:ty, $length:expr, $version_id:expr, $info:expr, $size:expr) => {{
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), 0)
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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err_hint: ::core::ptr::null(),
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offset: $crate::offset_of!($struct_name, $field_name),
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size: $size,
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start: 0,
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num: $length as _,
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num_offset: 0,
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size_offset: 0,
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info: unsafe { $info },
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flags: VMStateFlags::VMS_ARRAY,
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vmsd: ::core::ptr::null(),
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version_id: $version_id,
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struct_version_id: 0,
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field_exists: None,
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}
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}};
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}
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#[doc(alias = "VMSTATE_UINT32_ARRAY_V")]
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#[macro_export]
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macro_rules! vmstate_uint32_array_v {
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($field_name:ident, $struct_name:ty, $length:expr, $version_id:expr) => {{
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$crate::vmstate_array!(
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$field_name,
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$struct_name,
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$length,
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$version_id,
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::core::ptr::addr_of!($crate::bindings::vmstate_info_uint32),
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::core::mem::size_of::<u32>()
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)
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}};
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}
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#[doc(alias = "VMSTATE_UINT32_ARRAY")]
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#[macro_export]
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macro_rules! vmstate_uint32_array {
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($field_name:ident, $struct_name:ty, $length:expr) => {{
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$crate::vmstate_uint32_array_v!($field_name, $struct_name, $length, 0)
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}};
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}
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#[doc(alias = "VMSTATE_STRUCT_POINTER_V")]
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#[macro_export]
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macro_rules! vmstate_struct_pointer_v {
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($field_name:ident, $struct_name:ty, $version_id:expr, $vmsd:expr, $type:ty) => {{
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), 0)
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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err_hint: ::core::ptr::null(),
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offset: $crate::offset_of!($struct_name, $field_name),
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size: ::core::mem::size_of::<*const $type>(),
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start: 0,
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num: 0,
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num_offset: 0,
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size_offset: 0,
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info: ::core::ptr::null(),
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flags: VMStateFlags(VMStateFlags::VMS_STRUCT.0 | VMStateFlags::VMS_POINTER.0),
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vmsd: unsafe { $vmsd },
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version_id: $version_id,
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struct_version_id: 0,
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field_exists: None,
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}
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}};
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}
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#[doc(alias = "VMSTATE_ARRAY_OF_POINTER")]
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#[macro_export]
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macro_rules! vmstate_array_of_pointer {
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($field_name:ident, $struct_name:ty, $num:expr, $version_id:expr, $info:expr, $type:ty) => {{
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), 0)
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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version_id: $version_id,
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num: $num as _,
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info: unsafe { $info },
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size: ::core::mem::size_of::<*const $type>(),
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flags: VMStateFlags(VMStateFlags::VMS_ARRAY.0 | VMStateFlags::VMS_ARRAY_OF_POINTER.0),
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offset: $crate::offset_of!($struct_name, $field_name),
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err_hint: ::core::ptr::null(),
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start: 0,
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num_offset: 0,
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size_offset: 0,
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vmsd: ::core::ptr::null(),
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struct_version_id: 0,
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field_exists: None,
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}
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}};
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}
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#[doc(alias = "VMSTATE_ARRAY_OF_POINTER_TO_STRUCT")]
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#[macro_export]
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macro_rules! vmstate_array_of_pointer_to_struct {
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($field_name:ident, $struct_name:ty, $num:expr, $version_id:expr, $vmsd:expr, $type:ty) => {{
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), 0)
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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version_id: $version_id,
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num: $num as _,
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vmsd: unsafe { $vmsd },
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size: ::core::mem::size_of::<*const $type>(),
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flags: VMStateFlags(
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VMStateFlags::VMS_ARRAY.0
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| VMStateFlags::VMS_STRUCT.0
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| VMStateFlags::VMS_ARRAY_OF_POINTER.0,
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),
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offset: $crate::offset_of!($struct_name, $field_name),
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err_hint: ::core::ptr::null(),
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start: 0,
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num_offset: 0,
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size_offset: 0,
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vmsd: ::core::ptr::null(),
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struct_version_id: 0,
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field_exists: None,
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info: unsafe { ::core::ptr::addr_of!($crate::bindings::vmstate_info_unused_buffer) },
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flags: $crate::bindings::VMStateFlags::VMS_BUFFER,
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..$crate::zeroable::Zeroable::ZERO
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}
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}};
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}
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@ -661,48 +454,27 @@ macro_rules! vmstate_struct {
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};
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}
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#[doc(alias = "VMSTATE_CLOCK_V")]
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#[macro_export]
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macro_rules! vmstate_clock_v {
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($field_name:ident, $struct_name:ty, $version_id:expr) => {{
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$crate::vmstate_struct_pointer_v!(
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$field_name,
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$struct_name,
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$version_id,
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::core::ptr::addr_of!($crate::bindings::vmstate_clock),
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$crate::bindings::Clock
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)
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}};
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}
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#[doc(alias = "VMSTATE_CLOCK")]
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#[macro_export]
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macro_rules! vmstate_clock {
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($field_name:ident, $struct_name:ty) => {{
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$crate::vmstate_clock_v!($field_name, $struct_name, 0)
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}};
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}
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#[doc(alias = "VMSTATE_ARRAY_CLOCK_V")]
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#[macro_export]
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macro_rules! vmstate_array_clock_v {
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($field_name:ident, $struct_name:ty, $num:expr, $version_id:expr) => {{
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$crate::vmstate_array_of_pointer_to_struct!(
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$field_name,
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$struct_name,
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$num,
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$version_id,
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::core::ptr::addr_of!($crate::bindings::vmstate_clock),
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$crate::bindings::Clock
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)
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}};
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}
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#[doc(alias = "VMSTATE_ARRAY_CLOCK")]
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#[macro_export]
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macro_rules! vmstate_array_clock {
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($field_name:ident, $struct_name:ty, $num:expr) => {{
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$crate::vmstate_array_clock_v!($field_name, $struct_name, $name, 0)
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$crate::bindings::VMStateField {
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name: ::core::concat!(::core::stringify!($field_name), "\0")
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.as_bytes()
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.as_ptr() as *const ::std::os::raw::c_char,
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offset: {
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$crate::assert_field_type!(
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$struct_name,
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$field_name,
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core::ptr::NonNull<$crate::bindings::Clock>
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);
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$crate::offset_of!($struct_name, $field_name)
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},
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size: ::core::mem::size_of::<*const $crate::bindings::Clock>(),
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flags: VMStateFlags(VMStateFlags::VMS_STRUCT.0 | VMStateFlags::VMS_POINTER.0),
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vmsd: unsafe { ::core::ptr::addr_of!($crate::bindings::vmstate_clock) },
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..$crate::zeroable::Zeroable::ZERO
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}
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}};
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}
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