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cc3d262aa9
The PL011 device's C implementation exposes its PL011State struct to users of the device, and one common usage pattern is to embed that struct into the user's own state struct. (The internals of the struct are technically visible to the C user of the device, but in practice are treated as implementation details.) This means that the Rust version of the state struct must not be larger than the C version's struct; otherwise it will trip a runtime assertion in object_initialize_type() when the C user attempts to in-place initialize the type. Add a compile-time assertion on the Rust side, so that if we accidentally make the Rust device state larger we know immediately that we need to expand the padding in the C version of the struct. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Link: https://lore.kernel.org/r/20250321112523.1774131-4-peter.maydell@linaro.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2024 Linaro Ltd.
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*
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* Authors: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/*
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* This header file is meant to be used as input to the `bindgen` application
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* in order to generate C FFI compatible Rust bindings.
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*/
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#ifndef __CLANG_STDATOMIC_H
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#define __CLANG_STDATOMIC_H
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/*
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* Fix potential missing stdatomic.h error in case bindgen does not insert the
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* correct libclang header paths on its own. We do not use stdatomic.h symbols
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* in QEMU code, so it's fine to declare dummy types instead.
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*/
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typedef enum memory_order {
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memory_order_relaxed,
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memory_order_consume,
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memory_order_acquire,
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memory_order_release,
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memory_order_acq_rel,
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memory_order_seq_cst,
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} memory_order;
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#endif /* __CLANG_STDATOMIC_H */
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#include "qemu/osdep.h"
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#include "qemu/module.h"
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#include "qemu-io.h"
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#include "system/system.h"
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#include "hw/sysbus.h"
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#include "exec/memory.h"
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#include "chardev/char-fe.h"
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#include "hw/clock.h"
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#include "hw/qdev-clock.h"
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#include "hw/qdev-properties.h"
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#include "hw/qdev-properties-system.h"
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#include "hw/irq.h"
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#include "qapi/error.h"
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#include "migration/vmstate.h"
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#include "chardev/char-serial.h"
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#include "exec/memattrs.h"
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#include "qemu/timer.h"
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#include "exec/address-spaces.h"
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#include "hw/char/pl011.h"
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