mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-06-21 15:43:21 +02:00
Jan Polensky
fc1118cdc3
Bindgen attempts to generate Rust layouts for a number of s390 structs
that are packed but contain, or transitively contain, aligned fields.
Rust rejects such layouts with E0588 ("packed type cannot transitively
contain a #[repr(align)] type").
Add the affected s390 types to the opaque type list so bindgen emits
opaque blob types instead of full representations. This matches existing
workarounds for x86 types such as alt_instr and x86_msi_data.
Link: https://lore.kernel.org/all/e5c7aa10-590d-0d20-dd3b-385bee2377e7@intel.com/
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
74 lines
2.4 KiB
Plaintext
74 lines
2.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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# We want to map these types to `isize`/`usize` manually, instead of
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# define them as `int`/`long` depending on platform bitwidth.
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--blocklist-type __kernel_s?size_t
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--blocklist-type __kernel_ptrdiff_t
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--opaque-type xregs_state
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--opaque-type desc_struct
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--opaque-type arch_lbr_state
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--opaque-type local_apic
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# Packed type cannot transitively contain a `#[repr(align)]` type.
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--opaque-type alt_instr
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--opaque-type x86_msi_data
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--opaque-type x86_msi_addr_lo
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# s390-only: same packed/align issue as above (E0588).
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--opaque-type lowcore
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--opaque-type tod_clock
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--opaque-type tpi_info
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--opaque-type uv_cb.*
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--opaque-type uv_secret.*
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--opaque-type zpci_fib
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# If SMP is disabled, `arch_spinlock_t` is defined as a ZST which triggers a Rust
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# warning. We don't need to peek into it anyway.
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--opaque-type spinlock
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# enums that appear in indirect function calls should specify a cfi type
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--newtype-enum lru_status
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--with-attribute-custom-enum=lru_status='#[cfi_encoding="10lru_status"]'
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# `seccomp`'s comment gets understood as a doctest
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--no-doc-comments
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# These functions use the `__preserve_most` calling convention, which neither bindgen
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# nor Rust currently understand, and which Clang currently declares to be unstable.
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--blocklist-function __list_.*_report
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# These constants are sometimes not recognized by bindgen depending on config.
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# We use const helpers to aid bindgen, to avoid conflicts when constants are
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# recognized, block generation of the non-helper constants.
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--blocklist-item ARCH_SLAB_MINALIGN
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--blocklist-item ARCH_KMALLOC_MINALIGN
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--blocklist-item VM_MERGEABLE
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--blocklist-item VM_READ
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--blocklist-item VM_WRITE
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--blocklist-item VM_EXEC
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--blocklist-item VM_SHARED
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--blocklist-item VM_MAYREAD
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--blocklist-item VM_MAYWRITE
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--blocklist-item VM_MAYEXEC
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--blocklist-item VM_MAYEXEC
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--blocklist-item VM_PFNMAP
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--blocklist-item VM_IO
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--blocklist-item VM_DONTCOPY
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--blocklist-item VM_DONTEXPAND
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--blocklist-item VM_LOCKONFAULT
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--blocklist-item VM_ACCOUNT
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--blocklist-item VM_NORESERVE
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--blocklist-item VM_HUGETLB
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--blocklist-item VM_SYNC
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--blocklist-item VM_ARCH_1
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--blocklist-item VM_WIPEONFORK
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--blocklist-item VM_DONTDUMP
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--blocklist-item VM_SOFTDIRTY
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--blocklist-item VM_MIXEDMAP
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--blocklist-item VM_HUGEPAGE
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--blocklist-item VM_NOHUGEPAGE
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# Structs should implement `Zeroable` when all of their fields do.
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--with-derive-custom-struct .*=MaybeZeroable
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--with-derive-custom-union .*=MaybeZeroable
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