b74baf4ad0
Add ucontext/sigcontext definition and signal handling support for LoongArch. Cc: Eric Biederman <ebiederm@xmission.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
45 lines
995 B
C
45 lines
995 B
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* Author: Hanlu Li <lihanlu@loongson.cn>
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* Huacai Chen <chenhuacai@loongson.cn>
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*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _UAPI_ASM_SIGCONTEXT_H
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#define _UAPI_ASM_SIGCONTEXT_H
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#include <linux/types.h>
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#include <linux/posix_types.h>
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/* FP context was used */
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#define SC_USED_FP (1 << 0)
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/* Address error was due to memory load */
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#define SC_ADDRERR_RD (1 << 30)
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/* Address error was due to memory store */
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#define SC_ADDRERR_WR (1 << 31)
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struct sigcontext {
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__u64 sc_pc;
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__u64 sc_regs[32];
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__u32 sc_flags;
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__u64 sc_extcontext[0] __attribute__((__aligned__(16)));
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};
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#define CONTEXT_INFO_ALIGN 16
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struct sctx_info {
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__u32 magic;
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__u32 size;
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__u64 padding; /* padding to 16 bytes */
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};
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/* FPU context */
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#define FPU_CTX_MAGIC 0x46505501
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#define FPU_CTX_ALIGN 8
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struct fpu_context {
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__u64 regs[32];
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__u64 fcc;
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__u32 fcsr;
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};
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#endif /* _UAPI_ASM_SIGCONTEXT_H */
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