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bindgen.sh
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#!/bin/bash
# -*- shell-script -*-
# Copyright 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
# ./tools/devtool shell --privileged
# bindgen-0.60 has a dependency that needs Rust edition 2021
# cargo +stable install bindgen
# apt update && apt install patch
set -eu
# Borrowed from crosvm https://chromium.googlesource.com/chromiumos/platform/crosvm/+/refs/heads/main/tools/impl/bindgen-common.sh#33
replace_linux_int_types() {
sed -E -e '/^pub type __(u|s)(8|16|32|64) =/d' -e 's/__u(8|16|32|64)/u\1/g' -e 's/__s(8|16|32|64)/i\1/g'
}
function info {
echo $@ >&2
}
function fc-bindgen {
cat <<EOF
// Copyright $(date +%Y) Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
// automatically generated by tools/bindgen.sh
#![allow(
non_camel_case_types,
non_upper_case_globals,
dead_code,
non_snake_case,
clippy::ptr_as_ptr,
clippy::undocumented_unsafe_blocks,
clippy::cast_lossless,
missing_debug_implementations
)]
EOF
bindgen --disable-header-comment --size_t-is-usize --constified-enum '*' --with-derive-default --with-derive-partialeq $@
}
KERNEL_HEADERS_HOME="/usr"
info "BINDGEN sockios.h"
fc-bindgen "$KERNEL_HEADERS_HOME/include/linux/sockios.h" |replace_linux_int_types >src/net_gen/src/sockios.rs
info "BINDGEN if.h"
fc-bindgen "$KERNEL_HEADERS_HOME/include/linux/if.h" \
--allowlist-var='IF.*' \
--allowlist-type='if.*' \
--allowlist-type="net_device.*" \
-- -D __UAPI_DEF_IF_IFNAMSIZ -D __UAPI_DEF_IF_NET_DEVICE_FLAGS -D __UAPI_DEF_IF_IFREQ -D __UAPI_DEF_IF_IFMAP >src/net_gen/src/iff.rs
info "BINDGEN if_tun.h"
fc-bindgen \
--allowlist-type='sock_fprog' \
--allowlist-var='TUN_.*' \
--allowlist-var='IFF_NO_PI' \
--allowlist-var='IFF_MULTI_QUEUE' \
--allowlist-var='IFF_TAP' \
--allowlist-var='IFF_VNET_HDR' \
--allowlist-var='ETH_.*' \
--allowlist-type='ifreq' \
"$KERNEL_HEADERS_HOME/include/linux/if_tun.h" >src/net_gen/src/if_tun.rs
info "BINDGEN virtio_ring.h"
fc-bindgen \
--allowlist-var "VIRTIO_RING_F_EVENT_IDX" \
"$KERNEL_HEADERS_HOME/include/linux/virtio_ring.h" >src/virtio_gen/src/virtio_ring.rs
info "BINDGEN virtio_blk.h"
fc-bindgen \
--allowlist-var "VIRTIO_BLK_.*" \
--allowlist-var "VIRTIO_F_.*" \
"$KERNEL_HEADERS_HOME/include/linux/virtio_blk.h" >src/virtio_gen/src/virtio_blk.rs
info "BINDGEN virtio_net.h"
fc-bindgen \
--allowlist-var "VIRTIO_NET_F_.*" \
--allowlist-var "VIRTIO_F_.*" \
--allowlist-type "virtio_net_hdr_v1" \
"$KERNEL_HEADERS_HOME/include/linux/virtio_net.h" >src/virtio_gen/src/virtio_net.rs
info "BINDGEN virtio_rng.h"
fc-bindgen \
--allowlist-var "VIRTIO_RNG_.*" \
--allowlist-var "VIRTIO_F_.*" \
"$KERNEL_HEADERS_HOME/include/linux/virtio_rng.h" >src/virtio_gen/src/virtio_rng.rs
# https://www.kernel.org/doc/Documentation/kbuild/headers_install.txt
# The Linux repo is huge. Just copy what we need.
# git clone --branch v5.10 --depth 1 https://github.com/torvalds/linux.git linux
git clone --branch linux-5.10.y --depth 1 https://github.com/amazonlinux/linux amazonlinux-v5.10.y
info "BINDGEN mpspec_def.h"
fc-bindgen amazonlinux-v5.10.y/arch/x86/include/asm/mpspec_def.h \
>src/vmm/src/arch_gen/x86/mpspec.rs
# https://github.com/rust-lang/rust-bindgen/issues/1274
info "BINDGEN msr-index.h"
cp -r amazonlinux-v5.10.y/include/asm-generic amazonlinux-v5.10.y/include/asm
sed -i -E 's/__no_(sanitize|kasan)_or_inline//g' amazonlinux-v5.10.y/include/asm/rwonce.h
fc-bindgen amazonlinux-v5.10.y/arch/x86/include/asm/msr-index.h \
--allowlist-var "^MSR_.*$" \
-- \
-Iamazonlinux-v5.10.y/include/ \
-Iamazonlinux-v5.10.y/arch/x86/include/ \
-Wno-macro-redefined \
>src/vmm/src/arch_gen/x86/msr_index.rs
perl -i -pe 's/= (\d+);/sprintf("= 0x%x;",$1)/eg' src/vmm/src/arch_gen/x86/msr_index.rs
info "BINDGEN perf_event.h"
grep "MSR_ARCH_PERFMON_" amazonlinux-v5.10.y/arch/x86/include/asm/perf_event.h \
>amazonlinux-v5.10.y/arch/x86/include/asm/perf_event_msr.h
fc-bindgen amazonlinux-v5.10.y/arch/x86/include/asm/perf_event_msr.h \
--allowlist-var "^MSR_ARCH_PERFMON_.*$" \
-- \
>src/vmm/src/arch_gen/x86/perf_event.rs
perl -i -pe 's/= (\d+);/sprintf("= 0x%x;",$1)/eg' src/vmm/src/arch_gen/x86/perf_event.rs
info "BINDGEN hyperv.h"
grep "HV_X64_MSR_" amazonlinux-v5.10.y/arch/x86/kvm/hyperv.h \
>amazonlinux-v5.10.y/arch/x86/kvm/hyperv_msr.h
fc-bindgen amazonlinux-v5.10.y/arch/x86/kvm/hyperv_msr.h \
--allowlist-var "^HV_X64_MSR_.*$" \
-- \
>src/vmm/src/arch_gen/x86/hyperv.rs
perl -i -pe 's/= (\d+);/sprintf("= 0x%x;",$1)/eg' src/vmm/src/arch_gen/x86/hyperv.rs
info "BINDGEN hyperv-tlfs.h"
grep "HV_X64_MSR_" amazonlinux-v5.10.y/arch/x86/include/asm/hyperv-tlfs.h \
>amazonlinux-v5.10.y/arch/x86/include/asm/hyperv-tlfs_msr.h
fc-bindgen amazonlinux-v5.10.y/arch/x86/include/asm/hyperv-tlfs_msr.h \
--allowlist-var "^HV_X64_MSR_.*$" \
-- \
>src/vmm/src/arch_gen/x86/hyperv_tlfs.rs
perl -i -pe 's/= (\d+);/sprintf("= 0x%x;",$1)/eg' src/vmm/src/arch_gen/x86/hyperv_tlfs.rs
info "BINDGEN io_uring.h"
fc-bindgen \
--allowlist-var "IORING_.+" \
--allowlist-var "IO_URING_.+" \
--allowlist-var "IOSQE_.+" \
--allowlist-type "io_uring_.+" \
--allowlist-type "io_.qring_offsets" \
"amazonlinux-v5.10.y/include/uapi/linux/io_uring.h" \
>src/io_uring/src/bindings.rs
# Apply any patches
# src/virtio_gen
for crate in src/net_gen; do
for patch in $(dirname $0)/bindgen-patches/$(basename $crate)/*.patch; do
echo PATCH $crate/$patch
(cd $crate; patch -p1) <$patch
done
done
echo "Bindings created correctly! You might want to run ./tools/test_bindings.py to test for ABI incompatibilities"