From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/riscv/include/uapi/asm/ucontext.h | 38 ++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/riscv/include/uapi/asm/ucontext.h (limited to 'arch/riscv/include/uapi/asm/ucontext.h') diff --git a/arch/riscv/include/uapi/asm/ucontext.h b/arch/riscv/include/uapi/asm/ucontext.h new file mode 100644 index 0000000000..516bd0bb0d --- /dev/null +++ b/arch/riscv/include/uapi/asm/ucontext.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ +/* + * Copyright (C) 2012 ARM Ltd. + * Copyright (C) 2017 SiFive, Inc. + * + * This file was copied from arch/arm64/include/uapi/asm/ucontext.h + */ +#ifndef _UAPI_ASM_RISCV_UCONTEXT_H +#define _UAPI_ASM_RISCV_UCONTEXT_H + +#include + +struct ucontext { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + sigset_t uc_sigmask; + /* + * There's some padding here to allow sigset_t to be expanded in the + * future. Though this is unlikely, other architectures put uc_sigmask + * at the end of this structure and explicitly state it can be + * expanded, so we didn't want to box ourselves in here. + */ + __u8 __unused[1024 / 8 - sizeof(sigset_t)]; + /* + * We can't put uc_sigmask at the end of this structure because we need + * to be able to expand sigcontext in the future. For example, the + * vector ISA extension will almost certainly add ISA state. We want + * to ensure all user-visible ISA state can be saved and restored via a + * ucontext, so we're putting this at the end in order to allow for + * infinite extensibility. Since we know this will be extended and we + * assume sigset_t won't be extended an extreme amount, we're + * prioritizing this. + */ + struct sigcontext uc_mcontext; +}; + +#endif /* _UAPI_ASM_RISCV_UCONTEXT_H */ -- cgit v1.2.3