LXR linux/arch/mips/include/uapi/asm/sigcontext.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * This file is subject to the terms and conditions of the GNU General Public
   4 * License.  See the file "COPYING" in the main directory of this archive
   5 * for more details.
   6 *
   7 * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
   8 * Copyright (C) 1999 Silicon Graphics, Inc.
   9 */
  10#ifndef _UAPI_ASM_SIGCONTEXT_H
  11#define _UAPI_ASM_SIGCONTEXT_H
  12
  13#include <linux/types.h>
  14#include <asm/sgidefs.h>
  15
  16/* scalar FP context was used */
  17#define USED_FP                 (1 << 0)
  18
  19/* the value of Status.FR when context was saved */
  20#define USED_FR1                (1 << 1)
  21
  22/* FR=1, but with odd singles in bits 63:32 of preceding even double */
  23#define USED_HYBRID_FPRS        (1 << 2)
  24
  25/* extended context was used, see struct extcontext for details */
  26#define USED_EXTCONTEXT         (1 << 3)
  27
  28#if _MIPS_SIM == _MIPS_SIM_ABI32
  29
  30/*
  31 * Keep this struct definition in sync with the sigcontext fragment
  32 * in arch/mips/kernel/asm-offsets.c
  33 */
  34struct sigcontext {
  35        unsigned int            sc_regmask;     /* Unused */
  36        unsigned int            sc_status;      /* Unused */
  37        unsigned long long      sc_pc;
  38        unsigned long long      sc_regs[32];
  39        unsigned long long      sc_fpregs[32];
  40        unsigned int            sc_acx;         /* Was sc_ownedfp */
  41        unsigned int            sc_fpc_csr;
  42        unsigned int            sc_fpc_eir;     /* Unused */
  43        unsigned int            sc_used_math;
  44        unsigned int            sc_dsp;         /* dsp status, was sc_ssflags */
  45        unsigned long long      sc_mdhi;
  46        unsigned long long      sc_mdlo;
  47        unsigned long           sc_hi1;         /* Was sc_cause */
  48        unsigned long           sc_lo1;         /* Was sc_badvaddr */
  49        unsigned long           sc_hi2;         /* Was sc_sigset[4] */
  50        unsigned long           sc_lo2;
  51        unsigned long           sc_hi3;
  52        unsigned long           sc_lo3;
  53};
  54
  55#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
  56
  57#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
  58
  59#include <linux/posix_types.h>
  60/*
  61 * Keep this struct definition in sync with the sigcontext fragment
  62 * in arch/mips/kernel/asm-offsets.c
  63 *
  64 * Warning: this structure illdefined with sc_badvaddr being just an unsigned
  65 * int so it was changed to unsigned long in 2.6.0-test1.  This may break
  66 * binary compatibility - no prisoners.
  67 * DSP ASE in 2.6.12-rc4.  Turn sc_mdhi and sc_mdlo into an array of four
  68 * entries, add sc_dsp and sc_reserved for padding.  No prisoners.
  69 */
  70struct sigcontext {
  71        __u64   sc_regs[32];
  72        __u64   sc_fpregs[32];
  73        __u64   sc_mdhi;
  74        __u64   sc_hi1;
  75        __u64   sc_hi2;
  76        __u64   sc_hi3;
  77        __u64   sc_mdlo;
  78        __u64   sc_lo1;
  79        __u64   sc_lo2;
  80        __u64   sc_lo3;
  81        __u64   sc_pc;
  82        __u32   sc_fpc_csr;
  83        __u32   sc_used_math;
  84        __u32   sc_dsp;
  85        __u32   sc_reserved;
  86};
  87
  88
  89#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
  90
  91#endif /* _UAPI_ASM_SIGCONTEXT_H */
  92