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34 lines
1.3 KiB
34 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ |
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/* |
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* Copyright (C) 2012 ARM Ltd. |
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* Copyright (C) 2017 SiFive, Inc. |
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* |
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* This file was copied from arch/arm64/include/uapi/asm/ucontext.h |
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*/ |
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#ifndef _UAPI_ASM_RISCV_UCONTEXT_H |
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#define _UAPI_ASM_RISCV_UCONTEXT_H |
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#include <linux/types.h> |
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struct ucontext { |
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unsigned long uc_flags; |
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struct ucontext *uc_link; |
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stack_t uc_stack; |
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sigset_t uc_sigmask; |
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/* There's some padding here to allow sigset_t to be expanded in the |
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* future. Though this is unlikely, other architectures put uc_sigmask |
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* at the end of this structure and explicitly state it can be |
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* expanded, so we didn't want to box ourselves in here. */ |
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__u8 __unused[1024 / 8 - sizeof(sigset_t)]; |
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/* We can't put uc_sigmask at the end of this structure because we need |
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* to be able to expand sigcontext in the future. For example, the |
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* vector ISA extension will almost certainly add ISA state. We want |
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* to ensure all user-visible ISA state can be saved and restored via a |
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* ucontext, so we're putting this at the end in order to allow for |
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* infinite extensibility. Since we know this will be extended and we |
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* assume sigset_t won't be extended an extreme amount, we're |
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* prioritizing this. */ |
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struct sigcontext uc_mcontext; |
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}; |
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#endif /* _UAPI_ASM_RISCV_UCONTEXT_H */
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