crosvm/virtio_sys/bindgen.sh
Zihan Chen 7cfc97d736 virtio_sys: Update bindgen to derive zerocopy
With uprev-ed bindgen, we can now customize derive directly.

TEST=CQ

BUG=b:204409584

Change-Id: Iba96cdb8329e9254249b247af55e11974620087c
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4234067
Auto-Submit: Zihan Chen <zihanchen@google.com>
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Commit-Queue: Zihan Chen <zihanchen@google.com>
2023-02-09 22:59:10 +00:00

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#!/usr/bin/env bash
# Copyright 2022 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Regenerate virtio_sys bindgen bindings.
set -euo pipefail
cd "$(dirname "${BASH_SOURCE[0]}")/.."
source tools/impl/bindgen-common.sh
bindgen_generate \
--allowlist-type='vhost_.*' \
--allowlist-var='VHOST_.*' \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/vhost.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
> virtio_sys/src/vhost.rs
bindgen_generate \
--allowlist-var='VIRTIO_.*' \
--allowlist-type='virtio_.*' \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_config.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
> virtio_sys/src/virtio_config.rs
VIRTIO_FS_EXTRA="// Added by virtio_sys/bindgen.sh
use data_model::Le32;
use zerocopy::AsBytes;
use zerocopy::FromBytes;"
bindgen_generate \
--raw-line "${VIRTIO_FS_EXTRA}" \
--allowlist-var='VIRTIO_FS_.*' \
--allowlist-type='virtio_fs_.*' \
--with-derive-custom "virtio_fs_config=FromBytes,AsBytes" \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_fs.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
| replace_linux_endian_types \
> virtio_sys/src/virtio_fs.rs
VIRTIO_IDS_EXTRAS="
//! This file defines virtio device IDs. IDs with large values (counting down
//! from 63) are nonstandard and not defined by the virtio specification.
// Added by virtio_sys/bindgen.sh - do not edit the generated file.
// TODO(abhishekbh): Fix this after this device is accepted upstream.
pub const VIRTIO_ID_VHOST_USER: u32 = 61;
// TODO(b/236144983): Fix this id when an official virtio-id is assigned to this device.
pub const VIRTIO_ID_PVCLOCK: u32 = 60;
"
bindgen_generate \
--raw-line "${VIRTIO_IDS_EXTRAS}" \
--allowlist-var='VIRTIO_ID_.*' \
--allowlist-type='virtio_.*' \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_ids.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
| rustfmt \
> virtio_sys/src/virtio_ids.rs
VIRTIO_NET_EXTRA="// Added by virtio_sys/bindgen.sh
use zerocopy::AsBytes;
use zerocopy::FromBytes;"
bindgen_generate \
--raw-line "${VIRTIO_NET_EXTRA}" \
--allowlist-var='VIRTIO_NET_.*' \
--allowlist-type='virtio_net_.*' \
--blocklist-type='virtio_net_ctrl_mac' \
--with-derive-custom "virtio_net_hdr=FromBytes,AsBytes" \
--with-derive-custom "virtio_net_hdr_mrg_rxbuf=FromBytes,AsBytes" \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_net.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
> virtio_sys/src/virtio_net.rs
bindgen_generate \
--allowlist-var='VRING_.*' \
--allowlist-var='VIRTIO_RING_.*' \
--allowlist-type='vring.*' \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_ring.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
> virtio_sys/src/virtio_ring.rs
bindgen_generate \
--allowlist-var='VIRTIO_.*' \
--allowlist-type='virtio_.*' \
"${BINDGEN_LINUX_X86_HEADERS}/include/linux/virtio_mmio.h" \
-- \
-isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \
| replace_linux_int_types \
> virtio_sys/src/virtio_mmio.rs