1  /* Types for registers for sys/procfs.h.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3  
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library.  If not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #ifndef _SYS_PROCFS_H
      21  # error "Never include <bits/procfs.h> directly; use <sys/procfs.h> instead."
      22  #endif
      23  
      24  /* Type for a general-purpose register.  */
      25  typedef __uint64_t elf_greg_t;
      26  
      27  /* And the whole bunch of them.  We could have used `struct
      28     pt_regs' directly in the typedef, but tradition says that
      29     the register set is an array, which does have some peculiar
      30     semantics, so leave it that way.  */
      31  #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof (elf_greg_t))
      32  typedef elf_greg_t elf_gregset_t[ELF_NGREG];
      33  
      34  #define ELF_NFPREG 34 /* 32 FPRs + 8-byte byte-vec for fcc + 4-byte FCR */
      35  typedef union
      36  {
      37    double d;
      38    float f;
      39  } elf_fpreg_t;
      40  typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
      41  
      42  typedef union
      43  {
      44    double d[2];
      45    float f[4];
      46  } __attribute__ ((__aligned__ (16))) elf_lsxregset_t[32];
      47  
      48  typedef union
      49  {
      50    double d[4];
      51    float f[8];
      52  } __attribute__ ((__aligned__ (32))) elf_lasxregset_t[32];